/* Modern CSS Variables for Light/Dark Themes */
:root[data-theme="light"] {
  /* Colors */
  --primary-color: #0066ff;
  --primary-hover: #0052cc;
  --secondary-color: #6b7280;
  --accent-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;

  /* Backgrounds */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-chat: #ffffff;
  --bg-sidebar: #ffffff;
  --bg-input: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-active: #e2e8f0;

  /* Text */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --text-inverse: #ffffff;

  /* Borders */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-strong: #94a3b8;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-chat: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

  /* Scrollbar (2026 style — tinted with brand, thin, rounded) */
  --scrollbar-thumb: rgba(99, 102, 241, 0.22);
  --scrollbar-thumb-hover: rgba(99, 102, 241, 0.45);
  --scrollbar-thumb-active: rgba(99, 102, 241, 0.65);
  --scrollbar-track: transparent;
}

:root[data-theme="dark"] {
  /* Colors */
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --secondary-color: #9ca3af;
  --accent-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;

  /* Backgrounds */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-chat: #1e293b;
  --bg-sidebar: #0f172a;
  --bg-input: #334155;
  --bg-hover: #334155;
  --bg-active: #475569;

  /* Text */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --text-inverse: #0f172a;

  /* Borders */
  --border-light: #334155;
  --border-medium: #475569;
  --border-strong: #64748b;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --gradient-chat: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);

  /* Scrollbar (2026 style — tinted with brand, thin, rounded, brighter for dark bg) */
  --scrollbar-thumb: rgba(129, 140, 248, 0.32);
  --scrollbar-thumb-hover: rgba(129, 140, 248, 0.55);
  --scrollbar-thumb-active: rgba(165, 180, 252, 0.8);
  --scrollbar-track: transparent;
}

/* ==================================================================
   Global scrollbar styling — 2026 modern thin + brand tinted
   ==================================================================
   Applies to every scrollable element by default.
   Specific containers can override (.chat-messages, .modal-body, etc.)
   with their own rules further down.
   ================================================================== */

/* Firefox — native thin scrollbar with custom colors */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* WebKit / Chromium / Edge — full control */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 999px;
  /* The 2px transparent border + background-clip trick creates visual inset
     so the thumb looks 6px thin while keeping 10px hit-area */
  border: 2px solid transparent;
  background-clip: content-box;
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  background-clip: content-box;
  box-shadow: inset 0 0 0 1px var(--scrollbar-thumb-hover);
}

::-webkit-scrollbar-thumb:active {
  background: var(--scrollbar-thumb-active);
  background-clip: content-box;
}

::-webkit-scrollbar-corner {
  background: transparent;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* App Layout */
.app {
  display: flex;
  height: 100vh;
  background: var(--bg-primary);
}

/* Mobile Header */
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem; /* Reduced vertical padding to fit 60px */
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-light);
  position: relative;
  z-index: 100;
  height: 60px; /* Fixed height for consistent calculation */
  box-sizing: border-box; /* Include padding in height calculation */
}

.mobile-header h1 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.menu-toggle, .theme-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: background-color 0.2s ease;
}

.menu-toggle:hover, .theme-toggle:hover {
  background: var(--bg-hover);
}

.menu-toggle i, .theme-toggle i {
  font-size: 1.25rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Sidebar */
.sidebar {
  width: 320px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
  z-index: 10;
  user-select: none;
}

/* Desktop safeguard: prevent sidebar from getting stuck in mobile state */
@media (min-width: 769px) {
  .sidebar {
    position: relative !important;
    transform: none !important;
    width: 320px !important;
  }
  .sidebar-overlay {
    display: none !important;
  }
}

.sidebar-header {
  padding: 1.5rem 1rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.sidebar-header .desktop-theme-toggle {
  position: absolute;
  right: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.desktop-theme-toggle {
  display: block;
}

.sidebar-actions {
  padding: 1rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.new-chat-btn {
  width: 2.5rem;
  height: 2.5rem;
  min-width: 2.5rem;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  border: none;
  padding: 0;
  border-radius: 0.75rem;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.new-chat-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.conversations-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ==================== Projects (F1) ==================== */

.projects-section {
  flex-shrink: 0;
  max-height: 40%;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.25rem;
  margin-bottom: 0.25rem;
}

.projects-section-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  cursor: pointer;
  user-select: none;
}

.projects-section-header:hover {
  color: var(--text-secondary);
}

.projects-caret {
  transition: transform 0.2s ease;
}

.projects-section.collapsed .projects-caret {
  transform: rotate(-90deg);
}

.projects-section.collapsed .projects-list {
  display: none;
}

.projects-count {
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

.projects-add-btn {
  margin-left: auto;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.projects-add-btn:hover {
  background: var(--bg-tertiary);
  color: var(--primary-color);
}

.projects-add-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.projects-list {
  overflow-y: auto;
  padding: 0 0.5rem;
}

.projects-empty {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  padding: 0.25rem 0.5rem 0.5rem;
  line-height: 1.4;
}

.project-item {
  margin-bottom: 0.125rem;
}

.project-item-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.project-item-header:hover {
  background: var(--bg-secondary);
}

.project-caret {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.project-item.expanded .project-caret {
  transform: rotate(90deg);
}

.project-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.project-conv-count {
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

.project-settings-btn {
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.project-item-header:hover .project-settings-btn {
  display: flex;
}

.project-settings-btn:hover {
  background: var(--bg-tertiary);
  color: var(--primary-color);
}

.project-item-body {
  display: none;
  padding-left: 1.25rem;
}

.project-item.expanded .project-item-body {
  display: block;
}

.project-new-chat-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.375rem 0.5rem;
  border: 1px dashed var(--border-medium);
  border-radius: 8px;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  cursor: pointer;
  margin: 0.125rem 0 0.25rem;
}

.project-new-chat-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.conversation-item.project-conv {
  padding-left: 0.375rem;
}

/* Project chip in the chat area */
.project-chip {
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 99px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  max-width: 50%;
}

.project-chip .project-chip-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.project-chip:hover {
  border-color: var(--primary-color);
  color: var(--text-primary);
}

/* Agent chip: signals the active chat is wired to a NAiOS agent. Deliberately
   distinct from the project chip (blue, filled) so an agent-bound chat is never
   mistaken for a normal one. Mutually exclusive with the project chip in practice
   (agent-bound chats have no project). */
.agent-chip {
  position: absolute;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.4rem 0.25rem 0.75rem;
  border: 1px solid #2563eb;
  border-radius: 99px;
  background: rgba(37, 99, 235, 0.12);
  color: #2563eb;
  font-size: 0.75rem;
  font-weight: 600;
  max-width: 60%;
}

.agent-chip > i.ph-robot {
  font-size: 0.95rem;
  flex-shrink: 0;
}

.agent-chip .agent-chip-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.agent-chip .agent-chip-detach {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.1rem;
  height: 1.1rem;
  margin-left: 0.15rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: #2563eb;
  cursor: pointer;
  flex-shrink: 0;
}

.agent-chip .agent-chip-detach:hover {
  background: rgba(37, 99, 235, 0.25);
}

/* Reserve vertical room under the floating agent chip so it never overlaps the
   first message. Toggled from chat.js alongside the chip's visibility. */
.chat-messages.with-agent-chip {
  padding-top: 2.75rem;
}

/* Project modal */
.project-modal-body {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.project-field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.project-field-hint {
  font-weight: 400;
  color: var(--text-tertiary);
}

.project-modal-body select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
}

.project-modal-body input[type="text"],
.project-modal-body input[type="email"],
.project-modal-body textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  resize: vertical;
}

.project-modal-body input[type="text"]:focus,
.project-modal-body textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.project-kb-list {
  max-height: 180px;
  overflow-y: auto;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 0.25rem;
}

.modal-footer-spacer {
  flex: 1;
}

.project-delete-btn {
  background: transparent;
  border: 1px solid var(--danger-color, #ef4444);
  color: var(--danger-color, #ef4444);
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.project-delete-btn:hover {
  background: var(--danger-color, #ef4444);
  color: #fff;
}

/* Move-to-project modal */
.move-project-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.move-project-option {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  text-align: left;
}

.move-project-option:hover:not(:disabled) {
  border-color: var(--primary-color);
}

.move-project-option.current {
  opacity: 0.6;
  cursor: default;
}

.move-project-option.no-project {
  color: var(--text-secondary);
  border-style: dashed;
}

.move-project-option span {
  flex: 1;
}

/* KB quick actions in project modal (F1.5) */
.project-kb-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.375rem;
}

.project-kb-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.5rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  cursor: pointer;
  text-decoration: none;
}

.project-kb-action-btn:hover {
  color: var(--primary-color);
  background: var(--bg-secondary);
}

.project-kb-newcol {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.375rem;
}

.project-kb-newcol input {
  flex: 1;
}

.project-kb-newcol .btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

.kb-col-upload-btn {
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  flex-shrink: 0;
}

.kb-collection-item:hover .kb-col-upload-btn {
  display: flex;
}

.kb-col-upload-btn:hover {
  background: var(--bg-tertiary);
  color: var(--primary-color);
}

.project-kb-upload-status {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.375rem;
}

.kb-upload-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  padding: 0.25rem 0.375rem;
  background: var(--bg-secondary);
  border-radius: 6px;
}

.kb-upload-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kb-upload-state {
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.kb-upload-spinner {
  animation: kbUploadSpin 1s linear infinite;
  color: var(--primary-color);
}

@keyframes kbUploadSpin {
  to { transform: rotate(360deg); }
}

.kb-upload-ok { color: var(--success-color, #10b981); }
.kb-upload-err { color: var(--danger-color, #ef4444); }

/* Duplicate recovery: move the existing doc into the target collection */
.kb-upload-move-btn {
  flex-shrink: 0;
  border: 1px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.kb-upload-move-btn:hover {
  background: var(--primary-color);
  color: #fff;
}
.kb-upload-move-btn:disabled {
  opacity: 0.5;
  cursor: wait;
}

/* Superadmin: projects gating block in plan editor */
.projects-feature-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.5rem 0;
}

.projects-feature-toggle,
.projects-feature-max {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.projects-feature-max input {
  padding: 0.25rem 0.375rem;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Projects F3: sharing */
.project-shared-badge {
  font-size: 0.8rem;
  color: var(--primary-color);
  flex-shrink: 0;
}

.project-leave-btn {
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.project-item-header:hover .project-leave-btn {
  display: flex;
}

.project-leave-btn:hover {
  background: var(--bg-tertiary);
  color: var(--danger-color, #ef4444);
}

.project-members-block {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  border-top: 1px dashed var(--border-light);
  margin-top: 0.5rem;
  padding-top: 0.25rem;
}

.project-members-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 150px;
  overflow-y: auto;
}

.project-member-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  font-size: 0.8125rem;
  color: var(--text-primary);
}

.project-member-row > i {
  color: var(--text-tertiary);
  font-size: 1rem;
}

.project-member-email {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-member-role {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  border-radius: 99px;
  padding: 1px 8px;
  flex-shrink: 0;
}

.project-member-revoke {
  width: 1.375rem;
  height: 1.375rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.project-member-revoke:hover {
  color: var(--danger-color, #ef4444);
  background: var(--bg-tertiary);
}

.project-members-add {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.project-members-add input {
  flex: 1;
}

.project-members-add select {
  width: auto;
  min-width: 120px;
}

.project-members-kb-warning {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--warning-color, #f59e0b);
}

/* KB section in the files side panel ("what does this chat know?") */
.kb-files-section {
  border-top: 1px solid var(--border-light);
  padding: 0.5rem 0.75rem 0.75rem;
  flex-shrink: 0;
  max-height: 40%;
  overflow-y: auto;
}

.kb-files-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  padding-bottom: 0.375rem;
}

.kb-files-header > i:first-child {
  color: var(--primary-color);
}

.kb-files-count {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border-radius: 99px;
  padding: 0 7px;
}

/* Tamaño (por doc / total por colección / total global) en el árbol KB */
.kb-files-size,
.kb-files-doc-size {
  font-size: 0.66rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Reproductor Spotify embebido en mensajes del chat */
.spotify-embed {
  margin: 0.5rem 0;
  border-radius: 12px;
  overflow: hidden;
  max-width: 560px;
}
.spotify-embed iframe { display: block; border: 0; }

.kb-files-manage {
  margin-left: auto;
  color: var(--text-tertiary);
  display: flex;
}

.kb-files-manage:hover {
  color: var(--primary-color);
}

.kb-files-group-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.25rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--text-primary);
}

.kb-files-group-header:hover {
  background: var(--bg-secondary);
}

.kb-files-caret {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  transition: transform 0.2s ease;
}

.kb-files-group.expanded .kb-files-caret {
  transform: rotate(90deg);
}

.kb-files-group-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kb-files-group-docs {
  display: none;
  padding-left: 1.25rem;
}

.kb-files-group.expanded .kb-files-group-docs {
  display: block;
}

.kb-files-doc {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border-radius: 6px;
}

.kb-files-doc:hover {
  background: var(--bg-secondary);
}

.kb-files-doc > i:first-child {
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.kb-files-doc-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kb-files-indexed {
  color: var(--success-color, #10b981);
  flex-shrink: 0;
}

.kb-files-pending {
  color: var(--warning-color, #f59e0b);
  flex-shrink: 0;
}

/* Team chats (v1.1, opt-in) */
.project-team-chats {
  border-top: 1px dashed var(--border-light);
  margin-top: 0.25rem;
  padding-top: 0.25rem;
}

.team-chats-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  padding: 0.25rem 0.5rem;
}

.conversation-item.team-conv {
  opacity: 0.85;
}

.team-conv-author {
  font-size: 0.65rem;
  color: var(--primary-color);
  background: var(--bg-tertiary);
  border-radius: 99px;
  padding: 1px 8px;
  flex-shrink: 0;
  max-width: 90px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.input-wrapper.readonly {
  opacity: 0.7;
  background: var(--bg-tertiary);
}

.kb-member-info {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  padding: 0.5rem;
  line-height: 1.4;
}

.kb-member-info i {
  color: var(--primary-color);
  flex-shrink: 0;
  margin-top: 1px;
}

/* Drag & drop conversations onto projects */
.project-item-header.drag-over {
  background: var(--bg-tertiary);
  outline: 2px dashed var(--primary-color);
  outline-offset: -2px;
}

.conversations-list.drag-over {
  outline: 2px dashed var(--primary-color);
  outline-offset: -4px;
  border-radius: 8px;
}

body.dragging-conversation .conversation-item {
  cursor: grabbing;
}

/* Project-wide files scope in side panel */
.file-conv-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.65rem;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border-radius: 99px;
  padding: 1px 7px;
  max-width: 140px;
  overflow: hidden;
  white-space: nowrap;
}

#filesScopeToggle.active {
  color: var(--primary-color);
  background: var(--bg-tertiary);
}

/* Save session file to project KB (F-polish) */
.kb-save-file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin: 0 0 0.75rem;
}

.kb-save-tag {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  border-radius: 99px;
  padding: 1px 8px;
  flex-shrink: 0;
}

.kb-save-note {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  padding: 0.25rem 0.375rem;
}

/* Project memory (F2) */
.project-memory-block {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  border-top: 1px dashed var(--border-light);
  margin-top: 0.5rem;
  padding-top: 0.25rem;
}

.project-memory-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.project-memory-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.project-memory-toggle input {
  accent-color: var(--primary-color);
}

.project-memory-history {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 0.25rem;
}

.memory-history-entry {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  width: 100%;
  text-align: left;
  padding: 0.375rem 0.5rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}

.memory-history-entry:hover {
  background: var(--bg-secondary);
}

.memory-history-date {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--primary-color);
}

.memory-history-preview {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* KB overlay: full-screen iframe on top of the project modal */
.kb-overlay {
  position: fixed;
  inset: 0;
  z-index: 10001; /* above .modal and .pasted-edit-overlay */
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

.kb-overlay-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.kb-overlay-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.kb-overlay-back {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--primary-color);
  color: var(--text-inverse, #fff);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
}

.kb-overlay-back:hover {
  opacity: 0.9;
}

.kb-overlay iframe {
  flex: 1;
  width: 100%;
  border: none;
  background: var(--bg-primary);
}

/* KB selector: inherit-from-project toggle */
.kb-collection-item.inherit-toggle {
  border-bottom: 1px dashed var(--border-light);
  margin-bottom: 0.25rem;
  padding-bottom: 0.375rem;
}

.kb-collection-item.inherit-toggle.inheriting .kb-col-name {
  color: var(--primary-color);
  font-weight: 600;
}

.search-container {
  position: relative;
  flex: 1;
}

.search-input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-icon {
  position: absolute;
  right: 1.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
}

.conversations-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 0.5rem 0.5rem;
}

/* Conversation groups */
.conversation-group {
  margin-bottom: 0.25rem;
}

.conversation-group-header {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  cursor: pointer;
  user-select: none;
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--bg-secondary);
}

.conversation-group-header:hover {
  color: var(--text-secondary);
}

.conversation-group-header .group-arrow {
  font-size: 0.75rem;
  transition: transform 0.2s ease;
}

.conversation-group.collapsed .group-arrow {
  transform: rotate(-90deg);
}

.conversation-group-header .group-count {
  margin-left: auto;
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-hover);
  padding: 0.05rem 0.4rem;
  border-radius: 0.5rem;
}

.pinned-group .conversation-group-header {
  color: var(--primary-color);
  cursor: default;
}

.pinned-group .conversation-group-header .group-count {
  background: color-mix(in srgb, var(--primary-color) 15%, transparent);
  color: var(--primary-color);
}

.conversation-group-items {
  overflow: hidden;
  transition: max-height 0.25s ease;
  max-height: 2000px;
}

.conversation-group.collapsed .conversation-group-items {
  max-height: 0;
}

.conversation-item {
  display: flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 0;
  position: relative;
  gap: 0.35rem;
}

.conversation-item:hover {
  background: var(--bg-hover);
}

.conversation-item.active {
  background: var(--bg-active);
}

.conversation-icon {
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.conversation-icon i {
  font-size: 1rem;
  color: var(--text-tertiary);
}

.conversation-item.active .conversation-icon i {
  color: var(--primary-color);
}

.conversation-title {
  flex: 1;
  min-width: 0;
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--text-primary);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  mask-image: linear-gradient(to right, transparent 0, black 0, black calc(100% - 8px), transparent 100%);
  -webkit-mask-image: linear-gradient(to right, black 0, black calc(100% - 8px), transparent 100%);
}

.conversation-title span {
  display: inline-block;
  white-space: nowrap;
  padding-right: 1rem;
}

/* Scroll effect on hover - requires JS to set --scroll-distance */
.conversation-item:hover .conversation-title.needs-scroll span {
  animation: scrollTitle var(--scroll-duration, 4s) ease-in-out infinite;
  animation-delay: 0.5s;
}

@keyframes scrollTitle {
  0%, 15% { transform: translateX(0); }
  45%, 55% { transform: translateX(var(--scroll-distance, 0px)); }
  85%, 100% { transform: translateX(0); }
}

.conversation-item.active .conversation-title {
  font-weight: 500;
}

.conversation-time {
  font-size: 0.625rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  margin-left: auto;
  padding-left: 0.25rem;
}

/* Kebab menu */
.conversation-menu {
  position: relative;
  flex-shrink: 0;
}

.menu-kebab-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.125rem;
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.2s ease;
  margin-right: -0.25rem;
}

.conversation-item:hover .menu-kebab-btn,
.conversation-menu.open .menu-kebab-btn {
  opacity: 1;
}

.menu-kebab-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.menu-kebab-btn i {
  font-size: 1rem;
}

/* Dropdown */
.conversation-dropdown {
  position: fixed;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 120px;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.25rem);
  transition: opacity 0.15s ease, visibility 0.15s ease, transform 0.15s ease;
}

.conversation-menu.open .conversation-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-action {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: background 0.15s ease;
}

.dropdown-action:first-child {
  border-radius: 0.5rem 0.5rem 0 0;
}

.dropdown-action:last-child {
  border-radius: 0 0 0.5rem 0.5rem;
}

.dropdown-action:hover {
  background: var(--bg-hover);
}

.dropdown-action.delete-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
}

.dropdown-action i {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.dropdown-action.delete-btn:hover i {
  color: var(--danger-color);
}

.action-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.25rem;
  transition: all 0.2s ease;
}

.action-btn:hover {
  color: var(--text-secondary);
  background: var(--bg-hover);
}

.delete-btn:hover {
  color: var(--danger-color);
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-tertiary);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-chat);
  overflow: hidden;
}

.chat-container {
  flex: 1;
  min-width: 380px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Welcome Screen */
.welcome-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.welcome-content {
  text-align: center;
  max-width: 600px;
}

.welcome-icon {
  margin-bottom: 2rem;
}

.welcome-icon i {
  font-size: 4rem;
  color: var(--primary-color);
}

.welcome-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.welcome-content p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 3rem;
}

.welcome-modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

.mode-card {
  background: var(--bg-secondary);
  border: 2px solid var(--border-light);
  border-radius: 1rem;
  padding: 1.5rem 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.mode-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mode-card.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: auto;
}

.mode-card.disabled:hover {
  border-color: var(--border-light);
  transform: none;
  box-shadow: none;
}

.mode-card i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 0.75rem;
}

.mode-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.mode-card p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.3;
  margin: 0;
}

/* Messages */
.message {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.message.user {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 2rem;
  height: 2rem;
  background: var(--bg-tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message.user .message-avatar {
  background: var(--primary-color);
  color: var(--text-inverse);
}

.message.assistant .message-avatar {
  background: var(--accent-color);
  color: var(--text-inverse);
}

.message-avatar i {
  font-size: 1rem;
}

.message-content {
  flex: 1;
  max-width: 70%;
  position: relative;
}

.message.user .message-content {
  text-align: right;
}

/* Model Info Badge - Mini subtle tag */
.model-info-badge {
  position: absolute;
  top: 0;
  right: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  border-radius: 50%;
  opacity: 0.9;
  transition: all 0.2s ease;
  cursor: help;
  z-index: 150;
  pointer-events: all;
  box-shadow: var(--shadow-sm);
}

.model-info-badge:hover {
  opacity: 1;
  transform: scale(1.15);
  background: var(--primary-hover);
}

.model-info-badge i {
  font-size: 14px;
  color: #ffffff;
}

/* Model Tooltip */
.model-tooltip {
  position: absolute;
  bottom: -32px;
  right: 0;
  background: rgba(0, 0, 0, 0.9);
  color: #ffffff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.model-tooltip::before {
  content: '';
  position: absolute;
  bottom: 100%;
  right: 6px;
  border: 5px solid transparent;
  border-bottom-color: rgba(0, 0, 0, 0.9);
}

.model-info-badge:hover .model-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-4px);
}

.message-text {
  background: var(--bg-secondary);
  padding: 0.875rem 1rem;
  border-radius: 1rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text-primary) !important; /* Force text color */
  word-wrap: break-word;
  margin-bottom: 0.25rem;
}

/* Ensure all text inside message-text uses correct color */
.message-text * {
  color: inherit;
}

/* Markdown Styles for Assistant Messages */
.message.assistant .message-text {
  white-space: normal;
}

/* Preserve line breaks in user messages (multiline textarea input) */
.message.user .message-text {
  white-space: pre-wrap;
}

.message.assistant .message-text h1,
.message.assistant .message-text h2,
.message.assistant .message-text h3,
.message.assistant .message-text h4,
.message.assistant .message-text h5,
.message.assistant .message-text h6 {
  margin: 1rem 0 0.5rem;
  font-weight: 600;
  line-height: 1.3;
}

.message.assistant .message-text h1:first-child,
.message.assistant .message-text h2:first-child,
.message.assistant .message-text h3:first-child {
  margin-top: 0;
}

.message.assistant .message-text h1 { font-size: 1.5rem; }
.message.assistant .message-text h2 { font-size: 1.3rem; }
.message.assistant .message-text h3 { font-size: 1.1rem; }
.message.assistant .message-text h4 { font-size: 1rem; }

.message.assistant .message-text p {
  margin: 0.5rem 0;
}

.message.assistant .message-text ul,
.message.assistant .message-text ol {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.message.assistant .message-text li {
  margin: 0.25rem 0;
}

.message.assistant .message-text code {
  background: var(--bg-tertiary);
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.875em;
}

.message.assistant .message-text pre {
  background: var(--bg-tertiary);
  padding: 1rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 0.75rem 0;
}

.message.assistant .message-text pre code {

    padding: 0;
    font-size: 0.875rem;
    line-height: 1.5;

}

.message.assistant .message-text pre code.hljs {
    background: transparent;
    padding: 0;
}


.message.assistant .message-text blockquote {
  border-left: 3px solid var(--primary-color);
  margin: 0.75rem 0;
  padding-left: 1rem;
  color: var(--text-secondary);
}

.message.assistant .message-text strong {
  font-weight: 600;
}

.message.assistant .message-text em {
  font-style: italic;
}

.message.assistant .message-text a {
  color: var(--primary-color);
  text-decoration: underline;
}

.message.assistant .message-text a:hover {
  color: var(--primary-hover);
}

.message.assistant .message-text hr {
  margin: 1rem 0;
  border: none;
  border-top: 1px solid var(--border-light);
}

.message.assistant .message-text table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0;
}

.message.assistant .message-text th,
.message.assistant .message-text td {
  padding: 0.5rem;
  border: 1px solid var(--border-light);
  text-align: left;
}

.message.assistant .message-text th {
  background: var(--bg-tertiary);
  font-weight: 600;
}

.message.user .message-text {
  background: var(--gradient-primary);
  color: #ffffff !important;
  border-bottom-right-radius: 0.25rem;
  white-space: pre-wrap;
}

.message.user .message-text * {
  color: #ffffff !important;
}

/* Landing prompt card (overrides user bubble gradient) */
.message.user .message-text.has-landing-card,
.message.user .message-text:has(.landing-prompt-card) {
  background: none;
  padding: 0;
  color: inherit !important;
}

.message.user .message-text.has-landing-card *,
.message.user .message-text:has(.landing-prompt-card) * {
  color: inherit !important;
}

.landing-prompt-card {
  background: var(--bg-secondary, #f8fafc);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 0.75rem;
  overflow: hidden;
  min-width: 260px;
}

.landing-prompt-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
}

.landing-prompt-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.landing-prompt-icon i {
  font-size: 18px;
  color: #fff !important;
}

.landing-prompt-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.landing-prompt-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary, #1f2937) !important;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.landing-prompt-meta {
  font-size: 11px;
  color: var(--text-muted, #9ca3af) !important;
}

.landing-prompt-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  color: var(--text-muted, #9ca3af) !important;
  transition: background 0.15s;
  flex-shrink: 0;
}

.landing-prompt-toggle:hover {
  background: var(--bg-tertiary, rgba(0,0,0,0.05));
}

.landing-prompt-toggle i {
  font-size: 16px;
  color: var(--text-muted, #9ca3af) !important;
}

.landing-prompt-body {
  border-top: 1px solid var(--border-color, #e2e8f0);
  max-height: 300px;
  overflow-y: auto;
}

.landing-prompt-body pre {
  margin: 0;
  padding: 10px 14px;
  font-size: 11px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-secondary, #6b7280) !important;
  background: none;
}

.message.assistant .message-text {
  border-bottom-left-radius: 0.25rem;
}

.message-image {
  position: relative;
  display: flex;
  justify-content: center;
  border-radius: 0.75rem;
  margin: 0.5rem 0;
  padding: 0.25rem;
  box-shadow: var(--shadow-md);
}

.message-image img {
  max-width: 500px;
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0.75rem;
}

/* Multiple attachments gallery */
.message-attachments-gallery {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.5rem 0;
  position: relative;
}

.message-attachments-gallery.multi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  max-width: 100%;
}

.message-attachments-gallery.multi .message-image {
  margin: 0;
}

.message-attachments-gallery.multi .message-image img {
  max-width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.message-attachments-gallery.multi .message-audio,
.message-attachments-gallery.multi .message-video {
  margin: 0;
}

/* 2 items: 2 columns */
.message-attachments-gallery.multi:has(> :nth-child(2):last-child) {
  grid-template-columns: repeat(2, 1fr);
}

/* 3+ items: 3 columns max */
.message-attachments-gallery.multi:has(> :nth-child(3)) {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

@media (max-width: 768px) {
  .message-attachments-gallery.multi {
    grid-template-columns: repeat(2, 1fr);
  }

  .message-attachments-gallery.multi:has(> :nth-child(3)) {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .message-attachments-gallery.multi {
    grid-template-columns: 1fr;
  }
}

.image-download-btn {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.7);
  border: none;
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  color: white;
}

.image-download-btn:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

.image-download-btn i {
  font-size: 1rem;
}

/* Multimedia Content Styles */
.message-media {
  margin-bottom: 0.5rem;
}

.message-video {
  position: relative;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--bg-tertiary);
  margin: 0.5rem auto;
  max-width: 800px;
}

.message-video video {
  width: 480px;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* Vertical videos (portrait) should be smaller */
.message-video.video-vertical {
  max-width: 350px;
}

.message-video.video-vertical video {
  max-width: 350px;
}

.message-audio {
  background: var(--bg-tertiary);
  border-radius: 0.75rem;
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  max-width: 350px;
}

.message-audio audio {
  width: 100%;
  margin-bottom: 0.5rem;
}

.media-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem;
  background: rgba(0, 0, 0, 0.05);
}

.media-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.media-download-btn {
  background: var(--primary-color);
  border: none;
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  color: white;
  flex-shrink: 0;
}

.media-download-btn:hover {
  background: var(--primary-hover);
  transform: scale(1.1);
}

.media-download-btn i {
  font-size: 0.875rem;
}

.message-time {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.message.user .message-time {
  text-align: right;
}

/* Transcription and Video Analysis Styling */
.transcription-section,
.video-section {
  margin-top: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: var(--bg-tertiary);
  overflow: hidden;
}

.video-section {
  border-color: var(--primary-color);
}

.transcription-header {
  background: var(--accent-color);
  color: var(--text-inverse);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.video-section .transcription-header {
  background: var(--primary-color);
}

.transcription-header i {
  font-size: 0.875rem;
}

.transcription-item {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-light);
}

.transcription-item:last-child {
  border-bottom: none;
}

.transcription-filename {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.375rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.transcription-filename::before {
  content: "🎵";
  font-size: 0.75rem;
}

.transcription-text {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  padding: 0.5rem;
  border-radius: 0.375rem;
  border-left: 3px solid var(--accent-color);
}

.video-section .transcription-text {
  border-left-color: var(--primary-color);
}

/* Code Block */
.code-block-container {
  margin: 1rem 0;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  overflow: hidden;
  background: var(--bg-secondary);
}

.code-tabs {
  display: flex;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-light);
  padding: 0;
}

.code-tab-btn {
  padding: 0.625rem 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
}

.code-tab-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.05);
}

.code-tab-btn.active {
  color: var(--primary-color);
  background: var(--bg-primary);
  border-bottom-color: var(--primary-color);
}

.code-tab-content {
  position: relative;
}

.code-tab-panel {
  display: none;
}

.code-tab-panel.active {
  display: block;
}

.code-tab-panel[data-panel="preview"] {
  padding: 0;
  background: white;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-light);
}

.preview-resolution-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 0.375rem 0.625rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.preview-resolution-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.preview-resolution-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.preview-resolution-btn i {
  font-size: 1rem;
}

.preview-resolution-label {
  font-weight: 500;
  min-width: 52px;
  text-align: center;
}

.preview-iframe-container {
  width: 100%;
  min-height: 150px;
  max-height: 750px;
  height: 350px; /* Default before JS sets dynamic height */
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: #e5e7eb;
  overflow: auto;
  padding: 1rem;
  transition: height 0.2s ease;
}

.preview-iframe-container iframe {
  height: 100%;
  border: none;
  display: block;
  background: white;
  transition: width 0.3s ease, box-shadow 0.3s ease;
}

.preview-iframe-container.desktop iframe {
  width: 100%;
}

.preview-iframe-container.tablet iframe {
  width: 768px;
  max-width: 100%;
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
  border-radius: 8px;
}

.preview-iframe-container.mobile iframe {
  width: 375px;
  max-width: 100%;
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
  border-radius: 8px;
}

.code-tab-panel[data-panel="code"] {
  background: var(--bg-primary);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-light);
}

.code-lang {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.code-action-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-left: 0.5rem;
}

.code-action-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.code-action-btn.success {
  background: var(--success-color);
  color: white;
  border-color: var(--success-color);
}

/* Mobile: solo iconos en preview header */
@media (max-width: 640px) {
  .preview-resolution-label {
    display: none;
  }

  .preview-resolution-btn {
    padding: 0.375rem;
    gap: 0;
  }

  .code-action-btn {
    font-size: 0;
    padding: 0.375rem;
    gap: 0;
  }

  .code-action-btn i {
    font-size: 1rem;
  }
}

.code-tab-panel[data-panel="code"] pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  background: var(--bg-primary);
}

.code-tab-panel[data-panel="code"] code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-primary);
  display: block;
  white-space: pre;
}

/* Share Panel Styles */
.share-container {
  padding: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
}

.share-section {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.share-section h4 {
  margin: 0 0 1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.share-section h4 i {
  color: var(--primary-color);
}

.share-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.option-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.option-row label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
}

.password-input-row {
  margin-top: -0.5rem;
}

.password-input-row input,
.share-password-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-light);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: border-color 0.2s;
}

.password-input-row input:focus,
.share-password-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.expiration-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  min-width: 150px;
}

.btn-generate-link {
  width: 100%;
  padding: 0.75rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-generate-link:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-generate-link:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.generated-link {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-light);
}

.link-display {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.share-link-input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
}

.btn-copy-link {
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.375rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-copy-link:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.link-info {
  display: flex;
  gap: 1.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.link-info span {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.email-share {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.email-input,
.email-message {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: inherit;
  transition: border-color 0.2s;
}

.email-input:focus,
.email-message:focus {
  outline: none;
  border-color: var(--primary-color);
}

.email-message {
  resize: vertical;
  min-height: 80px;
}

.btn-send-email {
  padding: 0.75rem;
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-send-email:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
}

.btn-send-email:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.share-footer {
  text-align: center;
  padding: 1rem;
  color: var(--text-tertiary);
}

.share-footer i {
  margin-right: 0.25rem;
}

/* Share Modal - Compact & Custom Scrollbar */
#shareModal .html-preview-modal-content {
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) transparent;
}

#shareModal .html-preview-modal-content::-webkit-scrollbar {
  width: 5px;
}

#shareModal .html-preview-modal-content::-webkit-scrollbar-track {
  background: transparent;
  margin: 0.5rem 0;
}

#shareModal .html-preview-modal-content::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.4);
  border-radius: 3px;
}

#shareModal .html-preview-modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

#shareModal .html-preview-modal-header {
  padding: 0.75rem 1rem;
}

#shareModal .share-container {
  padding: 0.75rem 1rem 1rem;
}

#shareModal .share-section {
  padding: 0.75rem;
  margin-bottom: 0.625rem;
}

#shareModal .share-section:last-of-type {
  margin-bottom: 0.375rem;
}

#shareModal .share-section h4 {
  margin: 0 0 0.5rem 0;
  font-size: 0.875rem;
}

#shareModal .share-options {
  gap: 0.5rem;
}

#shareModal .option-row {
  gap: 0.75rem;
}

#shareModal .btn-generate-link {
  padding: 0.5rem;
  font-size: 0.8125rem;
}

#shareModal .generated-link {
  margin-top: 0.625rem;
  padding-top: 0.625rem;
}

#shareModal .link-display {
  margin-bottom: 0.5rem;
}

#shareModal .share-link-input {
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
}

#shareModal .btn-copy-link {
  padding: 0.5rem 0.75rem;
}

#shareModal .link-info {
  font-size: 0.75rem;
  gap: 1rem;
}

#shareModal .email-share {
  gap: 0.5rem;
}

#shareModal .email-input,
#shareModal .email-message {
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
}

#shareModal .email-message {
  min-height: 44px;
  resize: none;
}

#shareModal .btn-send-email {
  padding: 0.5rem;
  font-size: 0.8125rem;
}

#shareModal .share-footer {
  padding: 0.375rem 0.5rem;
  font-size: 0.75rem;
}

#shareModal .password-input-row input {
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
}

#shareModal .expiration-select {
  padding: 0.375rem 0.5rem;
  font-size: 0.8125rem;
  min-width: 120px;
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  opacity: 0.9;
  --typing-color: #10b981;
  --typing-speed: 1.4s;
}

.typing-indicator .typing-avatar {
  width: 2rem;
  height: 2rem;
  background: var(--accent-color);
  color: var(--text-inverse);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.typing-indicator .typing-avatar i {
  font-size: 1rem;
}

.typing-content {
  flex: 1;
  max-width: 70%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.typing-text {
  color: var(--typing-color);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.5rem 0;
}

.typing-dots {
  display: flex;
  gap: 0.375rem;
  align-items: center;
  padding: 0.5rem 0;
}

.typing-dots span {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--typing-color);
  border-radius: 50%;
  animation: typing var(--typing-speed) infinite ease-in-out;
}

.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1.2);
    opacity: 1;
  }
}

/* "Pensando..." streaming placeholder — animated so the long pre-stream phase
   (IntentRouter + KB retrieval + tool loading, before the first SSE byte) never
   looks frozen. Gentle opacity pulse + animated trailing dots. */
.stream-thinking {
  color: var(--text-tertiary);
  font-style: italic;
  animation: thinkingPulse 1.5s ease-in-out infinite;
}
@keyframes thinkingPulse {
  0%, 100% { opacity: 0.45; }
  50%      { opacity: 1; }
}
.thinking-dots::after {
  content: '';
  animation: thinkingDots 1.4s steps(1, end) infinite;
}
@keyframes thinkingDots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
  100% { content: '...'; }
}

/* Input Area */
.input-area {
  background: var(--bg-input);
  border-top: 1px solid var(--border-light);
  padding: 1rem;
}

.input-container {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  max-width: 1200px;
  margin: 0 auto;
}

.mode-selector {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.mode-selector-trigger {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  padding: 0.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 10;
}

.mode-selector-trigger:hover {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.mode-selector-panel {
  position: absolute;
  bottom: 100%;
  left: 50%;
  margin-bottom: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  padding: 0.25rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.25rem;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(10px);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-lg);
  z-index: 9;
}

.mode-selector.expanded .mode-selector-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mode-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.1);
}

.mode-btn.active {
  background: var(--primary-color);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
}

.mode-btn.disabled,
.mode-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.mode-btn.disabled:hover,
.mode-btn:disabled:hover {
  color: var(--text-secondary);
  background: transparent;
}

.mode-btn i {
  font-size: 1.125rem;
}

.input-form {
  flex: 1;
}

.input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  padding: 0.25rem 0.375rem;
  transition: all 0.2s ease;
}

.input-wrapper:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

#messageInput {
  flex: 1;
  background: none;
  border: none;
  padding: 0.875rem 1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text-primary);
  resize: none;
  overflow-y: hidden;
  max-height: 96px; /* ~3 líneas, sincronizado con autoResizeInput() */
}

#messageInput:focus {
  outline: none;
}

#messageInput::placeholder {
  color: var(--text-tertiary);
}

.send-btn {
  background: var(--primary-color);
  color: var(--text-inverse);
  border: none;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.send-btn:hover {
  background: var(--primary-hover);
  transform: scale(1.1);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

/* Auto Tools Button */
/* System Prompt Preset Selector */
.prompt-preset-wrapper {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
}

.prompt-preset-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1.05rem;
  flex-shrink: 0;
}

.prompt-preset-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.08);
  transform: scale(1.1);
}

.prompt-preset-btn.active {
  color: #a855f7;
  background: rgba(168, 85, 247, 0.1);
}

.prompt-preset-dropdown {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  min-width: 250px;
  z-index: 100;
  overflow: hidden;
  animation: kbDropdownIn 0.15s ease-out;
}

.prompt-preset-dropdown.visible {
  display: block;
}

.prompt-preset-dropdown-header {
  padding: 0.6rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.prompt-preset-list {
  padding: 0.35rem 0;
}

.prompt-preset-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  cursor: pointer;
  transition: background 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.prompt-preset-item:hover {
  background: var(--bg-secondary);
}

.prompt-preset-item.active {
  background: rgba(99, 102, 241, 0.08);
}

.prompt-preset-item > i:first-child {
  font-size: 1.15rem;
  flex-shrink: 0;
  width: 1.5rem;
  text-align: center;
}

.prompt-preset-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.prompt-preset-name {
  font-weight: 600;
  font-size: 0.85rem;
}

.prompt-preset-desc {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.prompt-preset-check {
  color: var(--primary-color);
  font-size: 1rem;
  flex-shrink: 0;
}

/* ========== Chat Settings Unified Menu ========== */
.chat-settings-wrapper {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
}

.chat-settings-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1.1rem;
  position: relative;
  flex-shrink: 0;
}

.chat-settings-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.08);
  transform: scale(1.1);
}

.chat-settings-dot {
  display: none;
  position: absolute;
  top: 3px;
  right: 3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary-color);
}

.chat-settings-dot.visible {
  display: block;
}

.chat-settings-menu {
  display: none;
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.85rem;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.18);
  min-width: 260px;
  max-width: 300px;
  z-index: 200;
  overflow: hidden;
  animation: chatSettingsIn 0.15s ease-out;
}

.chat-settings-menu.visible {
  display: block;
}

.chat-settings-handle {
  display: none;
  justify-content: center;
  padding: 0.4rem 0 0.1rem;
  cursor: pointer;
  color: var(--text-tertiary);
  font-size: 1.1rem;
}

.chat-settings-handle:hover {
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .chat-settings-handle {
    display: flex;
  }
}

.chat-settings-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 199;
}

.chat-settings-overlay.visible {
  display: block;
}

@keyframes chatSettingsIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-settings-section {
  padding: 0.4rem 0;
}

.chat-settings-divider {
  height: 1px;
  background: var(--border-color);
  margin: 0;
}

.cs-section-title {
  padding: 0.4rem 0.9rem 0.25rem;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chat-settings-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.85rem;
  transition: background 0.12s;
}

.chat-settings-item:hover {
  background: var(--bg-secondary);
}

.chat-settings-item > i:first-child {
  font-size: 1.1rem;
  width: 1.4rem;
  text-align: center;
  flex-shrink: 0;
  color: var(--text-secondary);
}

.cs-item-label {
  flex: 1;
  font-weight: 500;
}

.cs-item-arrow {
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

/* Toggle pill */
.cs-item-toggle {
  width: 34px;
  height: 18px;
  border-radius: 9px;
  background: var(--border-medium, #555);
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}

.cs-item-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
}

.cs-item-toggle.on {
  background: var(--primary-color);
}

.cs-item-toggle.on::after {
  transform: translateX(16px);
}

/* KB collections inside the menu */
.cs-kb-collections {
  padding: 0 0.5rem 0.3rem 2.4rem;
}

.cs-kb-collections .kb-dropdown-list {
  max-height: 160px;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.2rem 0;
}

/* Preset items in the menu */
.cs-preset-list {
  padding: 0 0.4rem 0.2rem;
}

.cs-preset-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.55rem;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.8rem;
  border-radius: 0.45rem;
  transition: background 0.12s;
}

.cs-preset-item:hover {
  background: var(--bg-secondary);
}

.cs-preset-item.active {
  background: rgba(99, 102, 241, 0.1);
}

.cs-preset-item > i:first-child {
  font-size: 1rem;
  width: 1.3rem;
  text-align: center;
  flex-shrink: 0;
}

.cs-preset-item .cs-preset-name {
  flex: 1;
  font-weight: 500;
}

.cs-preset-item .cs-preset-check {
  color: var(--primary-color);
  font-size: 0.9rem;
}

.auto-tools-btn {
  background: var(--bg-tertiary, rgba(150, 150, 150, 0.1));
  color: var(--text-tertiary);
  border: none;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.auto-tools-btn:hover:not(.active) {
  background: var(--bg-hover, rgba(150, 150, 150, 0.2));
  color: var(--text-secondary);
  transform: scale(1.1);
}

.auto-tools-btn.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
  box-shadow: 0 3px 12px rgba(102, 126, 234, 0.4);
  animation: pulse-glow 2s ease-in-out infinite;
}

.auto-tools-btn.active:hover {
  transform: scale(1.1);
  box-shadow: 0 5px 16px rgba(102, 126, 234, 0.5);
}

.auto-tools-btn i {
  font-size: 1.05rem;
  transition: transform 0.3s ease;
}

.auto-tools-btn.active i {
  transform: rotate(15deg);
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 3px 12px rgba(102, 126, 234, 0.4);
  }
  50% {
    box-shadow: 0 3px 20px rgba(102, 126, 234, 0.6);
  }
}

/* File Upload Button */
.file-upload-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1.05rem;
  flex-shrink: 0;
}

.file-upload-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.08);
  transform: scale(1.1);
}

.file-upload-btn.uploading {
  color: var(--primary-color);
  animation: pulse 2s infinite;
}

/* Web Search Button */
.web-search-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1.05rem;
  position: relative;
  flex-shrink: 0;
}

.web-search-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.08);
  transform: scale(1.1);
}

.web-search-btn.active {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.1);
}

.web-search-btn.active:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.15);
}

.web-search-btn.searching {
  color: var(--primary-color);
  animation: pulse 2s infinite;
}

/* Only show web search button in chat mode */
body:not([data-mode="chat"]) .web-search-btn {
  display: none;
}

/* Knowledge Base Toggle Button */
.kb-toggle-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1.05rem;
  position: relative;
  flex-shrink: 0;
}

.kb-toggle-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.08);
  transform: scale(1.1);
}

.kb-toggle-btn.active {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.1);
}

.kb-toggle-btn.active:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.15);
}

/* Only show KB toggle button in chat mode */
body:not([data-mode="chat"]) .kb-toggle-btn {
  display: none;
}

/* KB Collections Dropdown */
.kb-toggle-wrapper {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
}

.kb-collections-dropdown {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  min-width: 220px;
  max-width: 280px;
  z-index: 100;
  overflow: hidden;
  animation: kbDropdownIn 0.15s ease-out;
}

.kb-collections-dropdown.visible {
  display: block;
}

@keyframes kbDropdownIn {
  from { opacity: 0; transform: translateX(-50%) translateY(6px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.kb-dropdown-list {
  max-height: 240px;
  overflow-y: auto;
  padding: 0.35rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.kb-dropdown-list::-webkit-scrollbar {
  width: 5px;
}

.kb-dropdown-list::-webkit-scrollbar-track {
  background: transparent;
  margin: 0.25rem 0;
}

.kb-dropdown-list::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 3px;
}

.kb-dropdown-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

.kb-collection-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  transition: background 0.15s;
  font-size: 0.85rem;
  color: var(--text-primary);
  user-select: none;
}

.kb-collection-item:hover {
  background: var(--bg-secondary);
}

.kb-collection-item input[type="checkbox"] {
  accent-color: var(--primary-color);
  width: 15px;
  height: 15px;
  cursor: pointer;
  flex-shrink: 0;
}

.kb-collection-item .kb-col-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.kb-collection-item .kb-col-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kb-collection-item .kb-col-count {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.kb-collection-item.kb-master-toggle {
  font-weight: 600;
}

.kb-col-status {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border-radius: 0.3rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-color);
  flex-shrink: 0;
}

.kb-dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 0.3rem 0;
}

.kb-dropdown-section-title {
  padding: 0.35rem 0.85rem 0.15rem;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kb-collection-item.all-toggle {
  font-weight: 600;
}

/* Counter badge on KB button */
.kb-toggle-btn .kb-filter-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--primary-color);
  color: white;
  font-size: 0.6rem;
  font-weight: 700;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

/* Drag & Drop Styles */
.chat-container {
  position: relative;
}

.drag-drop-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(59, 130, 246, 0.1);
  backdrop-filter: blur(4px);
  border: 3px dashed var(--primary-color);
  border-radius: 1rem;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: all 0.3s ease;
}

.drag-drop-overlay.active {
  display: flex;
}

.drag-drop-content {
  text-align: center;
  padding: 2rem;
  background: var(--bg-primary);
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.drag-drop-content i {
  font-size: 4rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  display: block;
}

.drag-drop-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.drag-drop-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin: 0;
}

.chat-container.drag-over {
  background: rgba(59, 130, 246, 0.05);
}

.chat-container.drag-over .drag-drop-overlay {
  display: flex;
  animation: dragPulse 1s infinite ease-in-out;
}

@keyframes dragPulse {
  0% {
    transform: scale(1);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.02);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 0.9;
  }
}

.send-btn:disabled {
  background: var(--text-tertiary);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.send-btn i {
  font-size: 1.05rem;
}

.clear-btn {
  background: var(--danger-color);
  color: var(--text-inverse);
  border: none;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.clear-btn:hover {
  background: #dc2626;
  transform: scale(1.05);
}

.clear-btn i {
  font-size: 1.125rem;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: var(--bg-primary);
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 400px;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-body input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.modal-body input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.modal-footer {
  display: flex;
  gap: 0.75rem;
  padding: 1.5rem;
  border-top: 1px solid var(--border-light);
  justify-content: flex-end;
}

/* ========== File Upload Modal ========== */
.file-upload-modal-content {
  max-width: 520px;
}

.fu-dropzone {
  border: 2px dashed var(--border-medium, #555);
  border-radius: 0.75rem;
  padding: 1.5rem 1rem;
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
}

.fu-dropzone.dragover {
  border-color: var(--primary-color);
  background: rgba(99, 102, 241, 0.06);
}

.fu-dropzone > i {
  font-size: 2rem;
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
  display: block;
}

.fu-dropzone p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

.fu-browse-link {
  background: none;
  border: none;
  color: var(--primary-color);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: underline;
}

.fu-formats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
  margin-bottom: 0.4rem;
}

.fu-format-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  border-radius: 0.3rem;
  background: var(--bg-secondary);
  color: var(--text-tertiary);
}

.fu-limit {
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

.fu-preview-list {
  margin-top: 0.75rem;
}

.fu-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.fu-clear-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.fu-clear-btn:hover {
  color: #ef4444;
}

.fu-preview-grid {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 240px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

.fu-preview-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  transition: background 0.15s;
}

.fu-preview-item.error {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.05);
}

.fu-preview-thumb {
  width: 40px;
  height: 40px;
  border-radius: 0.35rem;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  font-size: 1.2rem;
  color: var(--text-tertiary);
}

.fu-preview-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fu-preview-info {
  flex: 1;
  min-width: 0;
}

.fu-preview-name {
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  color: var(--text-primary);
}

.fu-preview-meta {
  font-size: 0.68rem;
  color: var(--text-tertiary);
}

.fu-preview-error {
  font-size: 0.68rem;
  color: #ef4444;
}

.fu-preview-remove {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.2rem;
  border-radius: 50%;
  flex-shrink: 0;
  transition: all 0.15s;
}

.fu-preview-remove:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

@media (max-width: 768px) {
  .file-upload-modal-content {
    max-width: 100%;
    max-height: 80vh;
    margin: auto 0.5rem 0;
    border-radius: 1rem 1rem 0 0;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    animation: chatSettingsMobileIn 0.2s ease-out;
  }
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background: var(--primary-color);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* Image Edit Functionality Styles */
.image-buttons {
  position: absolute;
  bottom: 8px;
  right: 8px;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  transition: all 0.3s ease;
}

.message-image:hover .image-buttons {
  opacity: 1;
}

.image-action-btn {
  background: rgba(0, 0, 0, 0.7);
  border: none;
  color: white;
  padding: 0.5rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
}

.image-action-btn:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.05);
}

/* Individual image info badge */
.image-info-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border-radius: 0.375rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  cursor: pointer;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.message-image:hover .image-info-badge {
  opacity: 1;
}

.image-info-badge i {
  font-size: 0.875rem;
}

.image-info-tooltip {
  position: absolute;
  left: 0;
  top: 100%;
  margin-top: 4px;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  z-index: 100;
}

.image-info-badge:hover .image-info-tooltip {
  opacity: 1;
  visibility: visible;
}

/* Individual image delete button */
.image-delete-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(220, 38, 38, 0.8);
  border: none;
  color: white;
  padding: 0.375rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.875rem;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  height: 1.75rem;
}

.message-image:hover .image-delete-btn {
  opacity: 1;
}

.image-delete-btn:hover {
  background: rgba(185, 28, 28, 0.95);
  transform: scale(1.1);
}

/* Deleting animation for images */
.message-image.deleting {
  animation: fadeOutScale 0.3s ease forwards;
}

@keyframes fadeOutScale {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.8);
  }
}

.edit-image-preview {
  margin-bottom: 1rem;
  border-radius: 0.5rem;
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
}

.edit-image-preview img {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* Edit modal wide layout for references */
.modal-content-wide {
  max-width: 700px;
}

.edit-modal-layout {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.edit-modal-layout .edit-image-preview {
  flex: 1;
  min-width: 200px;
  margin-bottom: 0;
}

.edit-section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.edit-references-section {
  flex: 1;
  min-width: 200px;
}

.edit-references-hint {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin: 0 0 0.75rem 0;
}

.edit-references-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  min-height: 60px;
}

.edit-reference-item {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.edit-reference-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.edit-reference-item .remove-reference-btn {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.edit-reference-item:hover .remove-reference-btn {
  opacity: 1;
}

.add-reference-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border: 1px dashed var(--border-light);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.add-reference-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(59, 130, 246, 0.05);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--bg-secondary);
}

@media (max-width: 600px) {
  .modal-content-wide {
    max-width: 95%;
  }

  .edit-modal-layout {
    flex-direction: column;
    gap: 1rem;
  }

  .edit-modal-layout .edit-image-preview,
  .edit-references-section {
    min-width: auto;
  }
}

/* Video Generation Modal */
.video-compact-row {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
}
.video-reference-area { display: flex; align-items: center; gap: 0.35rem; }
.video-refs-panel {
  margin-top: 0.6rem; padding: 0.5rem 0.6rem;
  background: var(--bg-tertiary, var(--bg-secondary)); border: 1px dashed var(--border-light);
  border-radius: 0.375rem; min-height: 42px;
  display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
}
.video-refs-list { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.video-refs-list:empty + .video-refs-empty { display: flex; }
.video-refs-list:not(:empty) + .video-refs-empty { display: none; }
.video-refs-empty {
  display: flex; align-items: center; gap: 0.35rem;
  color: var(--text-secondary); font-size: 0.75rem; opacity: 0.5;
}
.video-mini-btn {
  width: 36px; height: 36px; border: 1px solid var(--border-light); border-radius: 0.375rem;
  background: var(--bg-secondary); color: var(--text-secondary); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
  transition: all 0.15s;
}
.video-mini-btn:hover { border-color: var(--primary-color); color: var(--primary-color); }
.video-mini-btn.active { border-color: var(--primary-color); color: var(--primary-color); background: color-mix(in srgb, var(--primary-color) 10%, transparent); }
.video-brand-slot {
  width: 64px; height: 48px; border: 1.5px dashed var(--border-light); border-radius: 6px;
  cursor: pointer; display: flex; align-items: center; justify-content: center; overflow: hidden;
  background: var(--bg-primary); transition: all 0.15s;
}
.video-brand-slot:hover { border-color: var(--primary-color); }
.video-brand-slot.has-image { border-style: solid; border-color: var(--primary-color); }
.video-brand-preview { display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--text-secondary); font-size: 0.65rem; }
.video-brand-preview i { font-size: 1rem; }
.video-brand-preview img { max-width: 56px; max-height: 40px; object-fit: contain; }
.video-ai-btn { background: linear-gradient(135deg, var(--primary-color), #8b5cf6); color: #fff !important; border-color: transparent; }
.video-ai-btn:hover { opacity: 0.85; border-color: transparent; color: #fff !important; }
.video-ai-btn:disabled { opacity: 0.5; cursor: wait; }
.video-ai-tip {
  font-size: 0.72rem; color: var(--primary-color); padding: 0.3rem 0; width: 100%;
  display: flex; align-items: center; gap: 0.3rem; animation: fadeIn 0.3s;
}
.video-ai-updated {
  animation: aiFlash 1.5s ease;
}
.video-lang-select {
  padding: 0.3rem 0.5rem; font-size: 0.75rem; border-radius: 0.375rem;
  background: var(--bg-secondary); color: var(--text-primary);
  border: 1px solid var(--border-light); cursor: pointer;
}
.video-lang-select:focus { outline: none; border-color: var(--primary-color); }
.video-avatar-active {
  background: linear-gradient(135deg, #e67e22, #f39c12) !important;
  color: #fff !important; border-color: transparent !important;
}
.video-avatar-active:hover { opacity: 0.85; }
.video-avatar-voice-wrap { display: flex; gap: 0.5rem; align-items: center; }
.extend-suggestions-loading {
  font-size: 0.75rem; color: var(--text-secondary); padding: 0.3rem 0;
}
.extend-suggestions-chips { display: flex; flex-direction: column; gap: 0.35rem; }
.extend-suggestion-chip {
  padding: 0.4rem 0.65rem; font-size: 0.75rem; line-height: 1.3;
  background: var(--bg-secondary); border: 1px solid var(--border-light);
  border-radius: 0.5rem; cursor: pointer; color: var(--text-primary);
  transition: all 0.15s; text-align: left;
}
.extend-suggestion-chip:hover {
  border-color: var(--primary-color); background: var(--bg-hover);
}
.extend-pose-chips { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.extend-pose-chip {
  padding: 0.3rem 0.6rem; font-size: 0.72rem; background: var(--bg-secondary);
  border: 1px solid var(--border-light); border-radius: 1rem; cursor: pointer;
  color: var(--text-secondary); transition: all 0.15s;
}
.extend-pose-chip:hover { border-color: var(--primary-color); color: var(--primary-color); }
.extend-pose-chip.selected { border-color: var(--primary-color); background: color-mix(in srgb, var(--primary-color) 12%, transparent); color: var(--primary-color); }
.extend-pose-custom { width: 100%; padding: 0.4rem 0.6rem; font-size: 0.75rem; border: 1px solid var(--border-light); border-radius: 0.375rem; background: var(--bg-primary); color: var(--text-primary); }
.video-extend-btn {
  background: var(--primary-color) !important; color: #fff !important;
  border-radius: 0.375rem; opacity: 0.85;
}
.video-extend-btn:hover { opacity: 1; }
.video-extend-preview { background: var(--bg-tertiary, var(--bg-secondary)); border-radius: 0.5rem; overflow: hidden; }
@keyframes aiFlash {
  0% { box-shadow: 0 0 0 0 rgba(99,102,241,0.5); }
  30% { box-shadow: 0 0 0 3px rgba(99,102,241,0.3); }
  100% { box-shadow: none; }
}
.video-ref-chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: var(--bg-secondary); border: 1px solid var(--border-light);
  border-radius: 0.375rem; padding: 0.2rem 0.5rem 0.2rem 0.2rem;
  font-size: 0.75rem; color: var(--text-secondary); max-width: 180px;
}
.video-ref-chip img {
  width: 28px; height: 28px; border-radius: 0.25rem; object-fit: cover; flex-shrink: 0;
}
.video-ref-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.video-ref-remove {
  background: none; border: none; color: var(--text-secondary); cursor: pointer;
  padding: 0; margin-left: auto; font-size: 0.7rem; line-height: 1;
  display: flex; align-items: center; opacity: 0.6; transition: opacity 0.15s;
}
.video-ref-remove:hover { opacity: 1; color: var(--danger-color, #e74c3c); }
.video-param-buttons { display: flex; gap: 0.3rem; }
.video-param-btn {
  padding: 0.35rem 0.6rem; border: 1px solid var(--border-light); border-radius: 0.375rem;
  cursor: pointer; font-size: 0.75rem; background: var(--bg-secondary); color: var(--text-primary);
  transition: all 0.15s; display: flex; align-items: center; gap: 0.25rem; line-height: 1;
}
.video-param-btn:hover { border-color: var(--primary-color); background: var(--bg-hover); }
.video-param-btn.selected { border-color: var(--primary-color); background: var(--primary-color); color: #fff; }
.video-model-type-badge {
  font-size: 0.6rem; padding: 0.05rem 0.3rem; border-radius: 0.2rem;
  font-weight: 600; text-transform: uppercase; margin-left: 0.25rem;
}
.video-model-type-badge.t2v { background: var(--primary-color); color: #fff; }
.video-model-type-badge.i2v { background: #e67e22; color: #fff; }
.video-model-select-wrap { position: relative; }
.video-model-select {
  width: 100%; padding: 0.45rem 0.75rem; font-size: 0.8125rem;
  background: var(--bg-secondary); color: var(--text-primary);
  border: 1px solid var(--border-light); border-radius: 0.375rem;
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.6rem center;
  cursor: pointer; transition: border-color 0.15s;
}
.video-model-select:focus { outline: none; border-color: var(--primary-color); }
.video-model-select option, .video-model-select optgroup {
  background: var(--bg-secondary); color: var(--text-primary);
}
.form-label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 0.35rem; }
.form-group { margin-bottom: 1rem; }

.modal-body textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: all 0.2s ease;
  resize: vertical;
  min-height: 80px;
  font-family: inherit;
}

.modal-body textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .app {
    flex-direction: column;
  }

  .mobile-header {
    display: flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    max-height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 200;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }

  /* REORDER SIDEBAR ITEMS in mobile - Profile below logo */
  .sidebar-header {
    order: 1;
  }

  .user-profile-section {
    order: 2;
    margin-top: 0;
    border-top: none;
    border-bottom: 1px solid var(--border-light);
    padding: 0.5rem 1rem;
  }

  .modules-section {
    order: 3;
    margin-top: 0;
    border-top: none;
    border-bottom: 1px solid var(--border-light);
  }

  .sidebar-actions {
    order: 4;
  }

  .conversations-section {
    order: 5;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
  }

  /* Make user profile compact in mobile */
  .user-profile-section .user-avatar {
    width: 32px;
    height: 32px;
  }

  .user-profile-section .user-avatar i {
    font-size: 16px;
  }

  .user-profile-section .user-name {
    font-size: 14px;
    font-weight: 500;
  }

  .user-profile-section .plan-badge {
    font-size: 10px;
    padding: 2px 6px;
  }

  .user-profile-compact-stats {
    font-size: 12px;
  }

  .user-profile-compact-stats i {
    font-size: 14px;
  }

  /* Reset conversations-list padding */
  .conversations-list {
    padding-bottom: 0.5rem;
  }

  /* Add margin to last conversation item */
  .conversation-item:last-child {
    margin-bottom: 0.5rem;
  }

  .sidebar.show {
    transform: translateX(0);
  }

  .sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    display: none;
  }

  .sidebar-overlay.show {
    display: block;
  }

  .main-content {
    margin-top: 0;
    height: calc(100vh - 60px); /* Subtract mobile header height */
    max-height: calc(100vh - 60px);
    padding-bottom: 0; /* Remove bottom padding since input-area is fixed */
  }

  .chat-container {
    padding-bottom: 0; /* Remove padding since input-area is fixed */
  }

  .desktop-theme-toggle {
    display: none;
  }

  .input-container {
    gap: 0.375rem;
    align-items: center;
  }

  .mode-selector {
    order: 1;
  }

  .mode-selector-panel {
    left: 0;
    transform: translateY(10px);
  }

  .mode-selector.expanded .mode-selector-panel {
    transform: translateY(0);
  }

  .mode-selector-trigger .mode-btn {
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
  }

  .mode-selector-trigger .mode-btn i {
    font-size: 1rem;
  }

  .input-form {
    flex: 1;
    min-width: 0;
    order: 2;
  }

  .input-wrapper {
    padding: 0.125rem;
  }

  .file-upload-btn,
  .web-search-btn,
  .kb-toggle-btn {
    width: 1.75rem;
    height: 1.75rem;
    min-width: 1.75rem;
    font-size: 0.875rem;
  }

  .session-files-btn,
  .auto-tools-btn,
  .chat-settings-btn,
  .send-btn {
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
  }

  /* Chat settings menu: bottom-sheet on mobile */
  .chat-settings-menu {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    border-radius: 1rem 1rem 0 0;
    max-width: 100%;
    min-width: 100%;
    max-height: 70vh;
    overflow-y: auto;
    animation: chatSettingsMobileIn 0.2s ease-out;
  }

  .chat-settings-menu.visible ~ .chat-settings-overlay {
    display: block;
  }

  @keyframes chatSettingsMobileIn {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
  }

  .session-files-btn i,
  .auto-tools-btn i,
  .send-btn i {
    font-size: 0.875rem;
  }

  #messageInput {
    font-size: 0.9rem;
    padding: 0.5rem 0.375rem;
  }

  .clear-btn {
    order: 3;
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
    font-size: 1rem;
  }

  .welcome-modes {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    max-width: 100%;
  }

  .mode-card {
    padding: 0.75rem 0.5rem;
    aspect-ratio: auto;
    min-height: 100px;
  }

  .mode-card i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }

  .mode-card h3 {
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
  }

  .mode-card p {
    font-size: 0.7rem;
    line-height: 1.2;
  }

  .message-content {
    max-width: 85%;
  }

  .welcome-content {
    padding: 1rem;
  }

  .welcome-screen {
    padding: 1rem;
  }

  .welcome-content h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }

  .welcome-content > p {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
  }

  .message-video video {
    width: 90%;
  }
}

@media (max-width: 480px) {
  .sidebar {
    width: 280px;
  }

  .input-area {
    padding: 0.75rem;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: var(--bg-input);
    border-top: 1px solid var(--border-light);
  }

  .chat-messages {
    padding: 0.75rem;
    padding-bottom: 140px; /* Add space for fixed input-area */
  }

  .modal-content {
    margin: 1rem;
    max-width: none;
  }

  .welcome-screen {
    padding: 0.75rem;
    padding-bottom: 140px; /* Add space for fixed input-area */
  }

  .welcome-modes {
    gap: 0.5rem;
  }

  .mode-card {
    padding: 0.625rem 0.375rem;
    min-height: 90px;
    border-radius: 0.75rem;
  }

  .mode-card i {
    font-size: 1.25rem;
    margin-bottom: 0.375rem;
  }

  .mode-card h3 {
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
  }

  .mode-card p {
    font-size: 0.65rem;
    line-height: 1.15;
  }

  .welcome-content h2 {
    font-size: 1.25rem;
  }

  .welcome-content > p {
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
  }

  /* Fix input area for mobile */
  .input-container {
    gap: 0.25rem;
    flex-wrap: nowrap;
  }

  .input-form {
    flex: 1;
    min-width: 0;
    overflow: hidden;
  }

  .input-wrapper {
    display: flex;
    align-items: center;
    padding: 0.125rem;
    gap: 0.125rem;
  }

  #messageInput {
    flex: 1;
    min-width: 0;
    font-size: 0.875rem;
    padding: 0.5rem 0.25rem;
  }

  .file-upload-btn,
  .web-search-btn,
  .kb-toggle-btn {
    width: 1.5rem;
    height: 1.5rem;
    min-width: 1.5rem;
    flex-shrink: 0;
  }

  .file-upload-btn i,
  .web-search-btn i,
  .kb-toggle-btn i {
    font-size: 0.8125rem;
  }

  .session-files-btn,
  .auto-tools-btn,
  .send-btn {
    width: 1.75rem;
    height: 1.75rem;
    min-width: 1.75rem;
    flex-shrink: 0;
  }

  .session-files-btn i,
  .auto-tools-btn i,
  .send-btn i {
    font-size: 0.8125rem;
  }

  .mode-selector-trigger .mode-btn {
    width: 1.5rem;
    height: 1.5rem;
    min-width: 1.5rem;
  }

  .mode-selector-trigger .mode-btn i {
    font-size: 0.8125rem;
  }
}

/* Extra small screens (360px and below) */
@media (max-width: 360px) {
  .input-area {
    padding: 0.5rem;
  }

  .input-container {
    gap: 0.125rem;
  }

  #messageInput {
    font-size: 0.8125rem;
    padding: 0.375rem 0.25rem;
  }

  .file-upload-btn,
  .web-search-btn,
  .kb-toggle-btn {
    width: 1.375rem;
    height: 1.375rem;
    min-width: 1.375rem;
  }

  .file-upload-btn i,
  .web-search-btn i,
  .kb-toggle-btn i {
    font-size: 0.75rem;
  }

  .session-files-btn,
  .auto-tools-btn,
  .send-btn {
    width: 1.5rem;
    height: 1.5rem;
    min-width: 1.5rem;
  }

  .session-files-btn i,
  .auto-tools-btn i,
  .send-btn i {
    font-size: 0.75rem;
  }

  .mode-selector-trigger .mode-btn {
    width: 1.375rem;
    height: 1.375rem;
    min-width: 1.375rem;
  }

  .mode-selector-trigger .mode-btn i {
    font-size: 0.75rem;
  }

  .chat-messages {
    padding-bottom: 120px;
  }

  .welcome-screen {
    padding-bottom: 120px;
  }
}

/* Scrollbar Styling */
.conversations-list::-webkit-scrollbar,
.chat-messages::-webkit-scrollbar,
.modal-body::-webkit-scrollbar,
.tts-voice-cards::-webkit-scrollbar {
  width: 5px;
}

.conversations-list::-webkit-scrollbar-track,
.chat-messages::-webkit-scrollbar-track,
.modal-body::-webkit-scrollbar-track,
.tts-voice-cards::-webkit-scrollbar-track {
  background: transparent;
}

.conversations-list::-webkit-scrollbar-thumb,
.chat-messages::-webkit-scrollbar-thumb,
.modal-body::-webkit-scrollbar-thumb,
.tts-voice-cards::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 3px;
}

.conversations-list::-webkit-scrollbar-thumb:hover,
.chat-messages::-webkit-scrollbar-thumb:hover,
.modal-body::-webkit-scrollbar-thumb:hover,
.tts-voice-cards::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

.modal-body, .tts-voice-cards {
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) transparent;
}

/* Theme Transition */
* {
  transition-property: background-color, border-color, color, fill, stroke, box-shadow;
  transition-duration: 0.3s;
  transition-timing-function: ease;
}

/* Attached Files UI */
.attached-files {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  padding: 0.5rem;
  max-width: 100%;
  font-size: 0.8rem;
}

.attached-files-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.clear-attachments-btn {
  background: none;
  border: none;
  color: var(--danger-color);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

.clear-attachments-btn:hover {
  background: var(--bg-hover);
}

.attached-files-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.attached-file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  transition: border-color 0.2s;
  max-width: fit-content;
}

.attached-file:hover {
  border-color: var(--border-medium);
}

.attached-file i {
  color: var(--primary-color);
  font-size: 0.9rem;
  flex-shrink: 0;
}

.file-name {
  flex: 1;
  font-size: 0.7rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.remove-file-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.remove-file-btn:hover {
  background: var(--bg-hover);
  color: var(--danger-color);
}

/* Responsive adjustments for attached files */
@media (max-width: 768px) {
  .attached-files {
    margin-left: 0;
    margin-right: 0;
  }

  .attached-file {
    padding: 0.5rem;
  }

  .file-name {
    font-size: 0.8rem;
  }
}

/* Pasted Content Preview UI */
.pasted-content-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pasted-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  position: relative;
  transition: all 0.2s ease;
  max-width: 320px;
}

.pasted-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

/* Pasted Image Thumbnail */
.pasted-image .pasted-image-thumb {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pasted-image .pasted-image-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Pasted Text Capsule */
.pasted-text {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  cursor: pointer;
}

.pasted-edit-hint {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  vertical-align: middle;
}

.pasted-text:hover .pasted-edit-hint {
  color: var(--primary-color);
}

.pasted-text-preview {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  max-width: 100%;
}

.pasted-text-preview i {
  color: var(--primary-color);
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pasted-text-snippet {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
  max-height: 3.6em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

/* Pasted Item Info */
.pasted-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  flex: 1;
  min-width: 0;
}

.pasted-item-name {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pasted-item-type {
  font-size: 0.65rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.pasted-item-type i {
  font-size: 0.75rem;
}

.pasted-item-stats {
  font-size: 0.65rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* Remove Button */
.pasted-item-remove {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--danger-color);
  color: white;
  border: 2px solid var(--bg-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.2s ease;
}

.pasted-item:hover .pasted-item-remove {
  opacity: 1;
  transform: scale(1);
}

.pasted-item-remove:hover {
  background: #dc2626;
  transform: scale(1.1);
}

/* Edit Button (text capsules) */
.pasted-item-edit {
  position: absolute;
  top: -6px;
  right: 18px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  color: white;
  border: 2px solid var(--bg-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.2s ease;
}

.pasted-item:hover .pasted-item-edit {
  opacity: 1;
  transform: scale(1);
}

.pasted-item-edit:hover {
  transform: scale(1.1);
}

/* Pasted Text Edit Modal */
.pasted-edit-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 1rem;
  animation: fadeIn 0.15s ease-out;
}

.pasted-edit-modal {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg, 0 10px 40px rgba(0, 0, 0, 0.2));
  animation: slideDown 0.2s ease-out;
}

.pasted-edit-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-light);
}

.pasted-edit-header h3 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pasted-edit-header h3 i {
  color: var(--primary-color);
}

.pasted-edit-close {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 1.125rem;
  padding: 0.25rem;
  border-radius: 6px;
  display: flex;
}

.pasted-edit-close:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.pasted-edit-textarea {
  flex: 1;
  min-height: 240px;
  margin: 1rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  resize: none;
}

.pasted-edit-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.pasted-edit-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 1rem 1rem;
}

.pasted-edit-stats {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.pasted-edit-actions {
  display: flex;
  gap: 0.5rem;
}

.pasted-edit-cancel,
.pasted-edit-save {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pasted-edit-cancel {
  background: transparent;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
}

.pasted-edit-cancel:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.pasted-edit-save {
  background: var(--primary-color);
  border: 1px solid var(--primary-color);
  color: var(--text-inverse, #fff);
}

.pasted-edit-save:hover {
  opacity: 0.9;
}

/* Clear All Button */
.pasted-clear-all {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: transparent;
  border: 1px dashed var(--border-medium);
  border-radius: 8px;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pasted-clear-all:hover {
  border-color: var(--danger-color);
  color: var(--danger-color);
  background: rgba(239, 68, 68, 0.05);
}

.pasted-clear-all i {
  font-size: 0.875rem;
}

/* Responsive adjustments for pasted content */
@media (max-width: 768px) {
  .pasted-content-preview {
    padding: 0.5rem;
    gap: 0.5rem;
  }

  .pasted-item {
    max-width: 100%;
    width: 100%;
  }

  .pasted-image .pasted-image-thumb {
    width: 48px;
    height: 48px;
  }

  .pasted-item-remove {
    opacity: 1;
    transform: scale(1);
  }
}

/* Image Lightbox Styles */
#imageLightboxModal {
  background: rgba(0, 0, 0, 0.9);
  z-index: 2000;
}

.lightbox-content {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-sizing: border-box;
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2001;
  transition: all 0.3s ease;
  //color: var(--text-primary);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 1);
  transform: scale(1.1);
}

.lightbox-close i {
  font-size: 1.5rem;
}

.lightbox-image-container {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-image-container img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-xl);
  cursor: grab;
}

.lightbox-image-container img:active {
  cursor: grabbing;
}

/* Make message images clickable */
.message-image img {
  cursor: pointer;
  transition: transform 0.2s ease;
}

.message-image img:hover {
  transform: scale(1.02);
}

/* Mobile responsive for lightbox */
@media (max-width: 768px) {
  .lightbox-close {
    top: calc(env(safe-area-inset-top, 0px) + 1rem);
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
  }

  .lightbox-close i {
    font-size: 1.25rem;
  }

  .lightbox-content {
    padding: 1rem;
    padding-top: calc(env(safe-area-inset-top, 0px) + 4rem);
  }

  .lightbox-image-container {
    max-width: 95vw;
    max-height: 80vh;
  }

  /* Smaller images on mobile */
  .message-image img {
    max-width: 280px;
  }
}

@media (max-width: 480px) {
  .lightbox-close {
    top: calc(env(safe-area-inset-top, 0px) + 0.75rem);
    right: 0.75rem;
    width: 2.25rem;
    height: 2.25rem;
  }

  .lightbox-close i {
    font-size: 1.125rem;
  }

  .lightbox-content {
    padding-top: calc(env(safe-area-inset-top, 0px) + 3.5rem);
  }

  .lightbox-image-container {
    max-height: 75vh;
  }
}

/* HTML Preview Modal */
.html-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.html-preview-modal.show {
  opacity: 1;
  visibility: visible;
}

.html-preview-modal-content {
  background: var(--bg-primary);
  border-radius: 0.75rem;
  width: 95vw;
  height: 95vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.html-preview-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-light);
}

.html-preview-header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.html-preview-modal-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.html-preview-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.html-preview-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.html-preview-close i {
  font-size: 1.5rem;
}

.html-preview-modal-body {
  flex: 1;
  overflow: hidden;
  background: #e5e7eb;
}

/* Modal iframe container with resolution support */
.modal-iframe-container {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: auto;
  padding: 1rem;
  background: #e5e7eb;
}

.modal-iframe-container iframe {
  height: 100%;
  border: none;
  display: block;
  background: white;
  transition: width 0.3s ease, box-shadow 0.3s ease;
}

.modal-iframe-container.desktop iframe {
  width: 100%;
  height: 100%;
}

.modal-iframe-container.tablet iframe {
  width: 768px;
  max-width: 100%;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  border-radius: 8px;
}

.modal-iframe-container.mobile iframe {
  width: 375px;
  max-width: 100%;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  border-radius: 8px;
}

/* Authentication Pages */
.auth-container {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 2rem 1rem;
  overflow-x: hidden;
}

:root[data-theme="dark"] .auth-container {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

.auth-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 450px;
  padding: 2.5rem;
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-logo {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.auth-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.auth-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  background: var(--bg-tertiary);
  padding: 0.375rem;
  border-radius: 0.75rem;
}

.auth-tab {
  flex: 1;
  padding: 0.75rem 1rem;
  background: transparent;
  border: none;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.auth-tab:hover {
  background: var(--bg-hover);
}

.auth-tab.active {
  background: var(--bg-primary);
  color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.auth-tab i {
  font-size: 1.25rem;
}

.auth-form-container {
  display: none;
}

.auth-form-container.active {
  display: block;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.form-group label i {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.form-group input {
  padding: 0.875rem 1rem;
  border: 1.5px solid var(--border-light);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-input);
  transition: all 0.2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group select {
  padding: 0.875rem 2.5rem 0.875rem 1rem;
  border: 1.5px solid var(--border-light);
  border-radius: 0.5rem;
  font-size: 1rem;
  color: var(--text-primary);
  background-color: var(--bg-input);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.form-group select:hover {
  border-color: var(--primary-color);
  background-color: var(--bg-secondary);
}

.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group select option {
  padding: 0.75rem 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.form-group small,
.form-group .form-help {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  line-height: 1.4;
}

.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

.link-text {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.link-text:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.btn {
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-block {
  width: 100%;
}

.alert {
  padding: 1rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  animation: slideDown 0.3s ease;
}

.alert i {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.alert-error {
  background: #fef2f2;
  color: #991b1b;
  border-left: 4px solid #ef4444;
}

:root[data-theme="dark"] .alert-error {
  background: #7f1d1d;
  color: #fecaca;
}

.alert-success {
  background: #f0fdf4;
  color: #166534;
  border-left: 4px solid #10b981;
}

:root[data-theme="dark"] .alert-success {
  background: #14532d;
  color: #bbf7d0;
}

.form-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 1rem;
  line-height: 1.5;
}

.demo-credentials {
  background: var(--bg-tertiary);
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1.5rem;
  text-align: center;
}

.demo-credentials p {
  margin: 0.25rem 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.demo-credentials p:first-child {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modules Section in Sidebar - Icon Grid */
.modules-section {
  padding: 0.375rem;
  border-top: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.modules-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.375rem 0.5rem;
  cursor: pointer;
  border-radius: 0.375rem;
  transition: background 0.2s ease;
}

.modules-header:hover {
  background: var(--bg-hover);
}

.modules-title {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

.modules-count {
  background: var(--primary-color);
  color: white;
  font-size: 0.6rem;
  padding: 0.1rem 0.35rem;
  border-radius: 8px;
  font-weight: 600;
}

.modules-toggle-icon {
  color: var(--text-tertiary);
  font-size: 0.75rem;
  transition: transform 0.3s ease;
}

.modules-section:not(.collapsed) .modules-toggle-icon {
  transform: rotate(180deg);
}

.modules-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(1.75rem, 1fr));
  gap: 0.35rem;
  overflow: hidden;
  transition: all 0.3s ease;
  max-height: 200px;
  padding: 0.4rem 0.15rem;
  justify-items: center;
}

.modules-section.collapsed .modules-list {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

.module-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 0.4rem;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all 0.2s ease;
  background: transparent;
  border: 1px solid var(--border-light);
  cursor: pointer;
}

.module-item:hover {
  transform: scale(1.1);
  color: var(--primary-color);
  border-color: var(--primary-color);
  background: rgba(99, 102, 241, 0.08);
}

.module-item:active {
  transform: scale(0.95);
}

/* Emoji used as a module icon (when the manifest icon isn't a ph- class) */
.module-item .module-emoji {
  font-size: 1.05rem;
  line-height: 1;
}

/* Hide module name on desktop - show only on hover via native title tooltip */
.module-item .module-name {
  display: none;
}

/* Mobile: modules with small label below icon */
@media (max-width: 768px) {
  .modules-section {
    padding: 0.5rem;
  }

  .modules-section:not(.collapsed) {
    padding-bottom: 0.75rem;
  }

  .modules-list {
    grid-template-columns: repeat(auto-fill, minmax(3.5rem, 1fr));
    gap: 0.625rem;
    padding: 0.5rem;
    /* Mobile cards are large (icon + label); the inherited 200px/overflow:hidden
       clipped modules past the first rows with no way to reach them. Give the grid
       its own scroll so all modules are reachable (the sidebar's flex layout keeps
       this block at a fixed height above the conversations list). */
    max-height: 40vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .module-item {
    flex-direction: column;
    width: 100%;
    height: auto;
    padding: 0.625rem 0.25rem 0.375rem;
    gap: 0.25rem;
    font-size: 1.25rem;
  }

  /* Show module name on mobile */
  .module-item .module-name {
    display: block;
    font-size: 0.55rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    text-align: center;
  }
}

/* User Profile Section in Sidebar - Compact Single Row */
.user-profile-section {
  margin-top: auto;
  padding: 0.5rem;
  border-top: 1px solid var(--border-light);
  transition: all 0.3s ease;
  overflow: hidden;
}

/* Collapsed state */
.user-profile-section.collapsed {
  padding: 0.5rem;
}

.user-profile-section.collapsed .user-profile-expanded {
  display: none;
}

.user-profile-section.collapsed .user-profile-info {
  margin-bottom: 0;
}

/* Header styling - Single row compact */
.user-profile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background-color 0.2s ease;
  border-radius: 0.375rem;
  padding: 0.375rem 0.5rem;
  background: var(--bg-secondary);
}

.user-profile-header:hover {
  background: var(--bg-hover);
}

.user-profile-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

/* Compact stats for collapsed state */
.user-profile-compact-stats {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
}

.compact-counter {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  background: var(--bg-primary);
  padding: 0.2rem 0.4rem;
  border-radius: 0.25rem;
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 600;
}

.compact-counter.warning {
  background: rgba(251, 191, 36, 0.1);
  color: #f59e0b;
}

.compact-counter.danger {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.compact-counter.token-counter {
  background: linear-gradient(135deg, rgba(250, 204, 21, 0.18), rgba(234, 179, 8, 0.12));
  color: #b45309;
  border: 1px solid rgba(234, 179, 8, 0.35);
}

.compact-counter.token-counter i { color: #eab308; }

.user-actions-stats.token-stats {
  background: linear-gradient(135deg, rgba(250, 204, 21, 0.15), rgba(234, 179, 8, 0.08));
  border: 1px solid rgba(234, 179, 8, 0.3);
  color: #b45309;
}

.user-actions-stats.token-stats i { color: #eab308; }

.billing-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 12px;
  transition: all 0.15s;
}

.billing-link:hover {
  background: var(--bg-tertiary);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.upgrade-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white !important;
  text-decoration: none;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.25);
  transition: all 0.2s;
}

.upgrade-link i { font-size: 12px; }

.upgrade-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.4);
  background: linear-gradient(135deg, #4f46e5, #4338ca);
}

.profile-toggle-icon {
  color: var(--text-tertiary);
  transition: transform 0.3s ease;
  font-size: 0.75rem;
}

.user-profile-section:not(.collapsed) .profile-toggle-icon {
  transform: rotate(180deg);
}

/* Expanded content */
.user-profile-expanded {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

/* Compact avatar */
.user-avatar {
  width: 1.5rem;
  height: 1.5rem;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  overflow: hidden;
}
.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.user-details {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.user-name {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-plan {
  display: flex;
  align-items: center;
}

/* Compact plan badge */
.plan-badge {
  display: inline-block;
  padding: 0.1rem 0.375rem;
  border-radius: 0.25rem;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.plan-badge.freemium {
  background: var(--surface-secondary);
  color: var(--text-secondary);
}

.plan-badge.premium {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.plan-badge.pro {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: white;
}

.plan-badge.admin {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  color: white;
}

/* Compact expanded section - single row */
.user-stats {
  display: none; /* Hidden - stats shown in compact row below */
}

.user-stats-label {
  color: var(--text-tertiary);
  font-size: 0.65rem;
}

.user-stats-value {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.7rem;
}

.unlimited-badge {
  color: var(--success-color, #10b981);
  font-size: 0.6rem;
  font-weight: 500;
}

/* Single row: stats + actions */
.user-actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

/* Compact stats inline with actions */
.user-actions-stats {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg-primary);
  border-radius: 0.25rem;
  font-size: 0.65rem;
  color: var(--text-secondary);
  margin-right: auto;
}

.user-actions-stats i {
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

.user-action-btn {
  padding: 0.375rem 0.5rem;
  background: transparent;
  border: none;
  border-radius: 0.25rem;
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.user-action-btn i {
  font-size: 0.85rem;
}

.user-action-btn span {
  display: none; /* Hide text, show only icons */
}

.user-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.user-action-btn.logout-btn {
  color: var(--text-tertiary);
}

.user-action-btn.logout-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

/* Profile Page — 2026 UI/UX centered layout */
.profile-page {
  min-height: 100vh;
  background: var(--bg-secondary);
  padding: 32px 20px 64px;
  display: flex;
  justify-content: center;
}

.profile-container {
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
}

.profile-header {
  margin-bottom: 32px;
  text-align: center;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
  transition: all 0.2s ease;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
}

.back-btn:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateX(-2px);
}

.back-btn i {
  font-size: 15px;
}

.profile-header h1 {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.5px;
}

.profile-header h1 i {
  font-size: 32px;
  color: var(--primary-color);
}

.profile-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.profile-card {
  background: var(--bg-primary);
  border-radius: 14px;
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.profile-card:hover {
  border-color: color-mix(in srgb, var(--primary-color) 25%, var(--border-light));
}

/* ==================== Avatar card (Fase 7) · 2026 centered ==================== */
.profile-avatar-card .avatar-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
  padding: 12px 0 8px;
}

.avatar-preview-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  box-shadow:
    0 0 0 6px var(--bg-secondary),
    0 0 0 7px var(--border-light),
    0 12px 40px rgba(0, 0, 0, 0.15);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.avatar-preview-wrap:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 0 0 6px var(--bg-secondary),
    0 0 0 7px var(--primary-color),
    0 16px 50px color-mix(in srgb, var(--primary-color) 30%, transparent);
}

.avatar-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 40%, rgba(15, 23, 42, 0.78) 100%);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 20px;
  gap: 3px;
  opacity: 0;
  transition: opacity 0.22s ease;
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.avatar-overlay i { font-size: 22px; }
.avatar-preview-wrap:hover .avatar-overlay { opacity: 1; }

.avatar-info {
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.avatar-info-title {
  margin: 0;
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 700;
}

.avatar-info-desc {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.55;
  max-width: 420px;
}

.avatar-info-desc code {
  background: var(--bg-tertiary);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
}

.avatar-info-fallback {
  margin: 2px 0 0;
  font-size: 11.5px;
  color: var(--text-muted);
  font-style: italic;
  max-width: 420px;
}

.avatar-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.profile-card h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1.5rem 0;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.profile-card h2 i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.profile-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.info-item label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

.info-value i {
  font-size: 1.125rem;
  color: var(--primary-color);
  flex-shrink: 0;
}

.badge-admin {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-user {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Quick Actions Grid */
.quick-actions-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.action-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.action-link:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary-color);
  transform: translateX(4px);
}

.action-icon {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  border-radius: 0.75rem;
  flex-shrink: 0;
}

.action-icon i {
  font-size: 1.5rem;
}

.action-content {
  flex: 1;
}

.action-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.25rem 0;
}

.action-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

.action-arrow {
  font-size: 1.25rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.action-link:hover .action-arrow {
  color: var(--primary-color);
  transform: translateX(4px);
}

.profile-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.profile-form .form-group small {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: -0.25rem;
}

.form-message {
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideDown 0.3s ease;
}

.form-message.success {
  background: #f0fdf4;
  color: #166534;
  border-left: 4px solid #10b981;
}

:root[data-theme="dark"] .form-message.success {
  background: #14532d;
  color: #bbf7d0;
}

.form-message.error {
  background: #fef2f2;
  color: #991b1b;
  border-left: 4px solid #ef4444;
}

:root[data-theme="dark"] .form-message.error {
  background: #7f1d1d;
  color: #fecaca;
}

/* Responsive */
@media (max-width: 768px) {
  .profile-page {
    padding: 1rem;
  }

  .profile-header h1 {
    font-size: 1.5rem;
  }

  .profile-header h1 i {
    font-size: 1.75rem;
  }

  .profile-card {
    padding: 1.25rem;
  }

  .profile-info-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* SuperAdmin Panel */
.superadmin-page {
  min-height: 100vh;
  background: var(--bg-secondary);
  padding: 1rem;
}

.superadmin-container {
  max-width: 1400px;
  margin: 0 auto;
}

.superadmin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.superadmin-header h1 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.superadmin-header h1 i {
  font-size: 2.25rem;
  color: #667eea;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.user-info {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.user-info strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-icon i {
  color: white !important;
}

.stat-icon.users {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-icon.messages {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stat-icon.conversations {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.stat-icon.admins {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.stat-content {
  flex: 1;
  min-width: 0;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-detail {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.stat-trend {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.stat-trend .trend-up {
  color: #10b981;
}

.stat-trend .trend-down {
  color: #ef4444;
}

.stat-trend i {
  font-size: 0.875rem;
}

/* Dashboard Stats Container */
.dashboard-stats-container {
  margin-bottom: 2rem;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.dashboard-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.dashboard-title i {
  color: var(--primary-color);
}

.period-filters {
  display: flex;
  gap: 0.5rem;
}

.period-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.period-btn:hover {
  background: var(--bg-hover);
  border-color: var(--primary-color);
}

.period-btn.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Charts Row */
.charts-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.chart-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.chart-header {
  margin-bottom: 1rem;
}

.chart-header h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.chart-header h3 i {
  color: var(--primary-color);
  font-size: 1.1rem;
}

.chart-body {
  height: 200px;
  position: relative;
}

/* Top Users Card */
.top-users-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  margin-top: 1.5rem;
}

.top-users-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.top-user-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.top-user-item:hover {
  background: var(--bg-hover);
}

.top-user-rank {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color) 0%, #7c3aed 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.top-user-info {
  flex: 1;
  min-width: 0;
}

.top-user-email {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.top-user-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.top-user-stats {
  flex-shrink: 0;
}

.top-user-messages {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

/* Top Models List */
.top-models-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.top-model-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 0.5rem;
  transition: all 0.2s ease;
}

.top-model-item:hover {
  background: var(--bg-hover);
}

.top-model-rank {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.top-model-info {
  flex: 1;
  min-width: 0;
}

.top-model-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.375rem;
}

.top-model-bar {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}

.top-model-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981 0%, #06b6d4 100%);
  border-radius: 2px;
  transition: width 0.5s ease;
}

.top-model-stats {
  flex-shrink: 0;
}

.top-model-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

.loading-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.loading-placeholder i {
  animation: spin 1s linear infinite;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem;
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.empty-state i {
  font-size: 2rem;
  opacity: 0.5;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Responsive: Charts */
@media (max-width: 992px) {
  .charts-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .dashboard-stats-container {
    padding: 1rem;
  }

  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .dashboard-title {
    font-size: 1.25rem;
  }

  .period-filters {
    width: 100%;
  }

  .period-btn {
    flex: 1;
    text-align: center;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .stat-card {
    padding: 0.875rem;
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .stat-icon {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.1rem;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.7rem;
  }

  .stat-detail {
    font-size: 0.65rem;
  }

  .stat-trend {
    font-size: 0.65rem;
  }

  .chart-card {
    padding: 1rem;
  }

  .chart-header h3 {
    font-size: 0.9rem;
  }

  .top-user-item,
  .top-model-item {
    padding: 0.5rem;
    gap: 0.5rem;
  }

  .top-user-rank,
  .top-model-rank {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.65rem;
  }

  .top-user-email,
  .top-model-name {
    font-size: 0.75rem;
  }

  .top-user-name {
    font-size: 0.65rem;
  }

  .top-user-messages,
  .top-model-count {
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }

  .stat-card {
    padding: 0.75rem 0.5rem;
  }

  .stat-icon {
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
    border-radius: 0.5rem;
  }

  .stat-number {
    font-size: 1.25rem;
  }

  .stat-label {
    font-size: 0.65rem;
  }

  .stat-detail {
    font-size: 0.6rem;
  }

  .period-btn {
    padding: 0.4rem 0.5rem;
    font-size: 0.75rem;
  }
}

/* Navigation Cards Grid */
.nav-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  padding: 1.25rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.nav-card:hover .nav-card-arrow {
  display: none;
}

.nav-card-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-card-icon i {
  font-size: 1.25rem;
  color: white;
}

.nav-card-icon.users {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.nav-card-icon.plans {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.nav-card-icon.invitations {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.nav-card-icon.config {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.nav-card-icon.preferences {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.nav-card-icon.plugins {
  background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
}

.nav-card-icon.customization {
  background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.nav-card-content {
  min-width: 0;
}

.nav-card-content h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.125rem 0;
}

.nav-card-content p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.3;
}

.nav-card-stat {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin-top: 0.25rem;
}

.nav-card-stat .stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-card-stat .stat-label {
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

.nav-card-arrow {
  display: none;
}

@media (max-width: 992px) {
  .nav-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .nav-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .nav-card {
    padding: 1rem 0.75rem;
  }

  .nav-card-icon {
    width: 2.5rem;
    height: 2.5rem;
  }

  .nav-card-icon i {
    font-size: 1.25rem;
  }

  .nav-card-content h3 {
    font-size: 0.85rem;
  }

  .nav-card-content p {
    display: none;
  }
}

/* Customization Tab Styles */
.customization-section {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.customization-section h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem 0;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.customization-form .form-group {
  margin-bottom: 1.25rem;
}

.customization-form .form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.customization-form .form-group input,
.customization-form .form-group textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 0.9rem;
  transition: border 0.2s;
  background: var(--bg-input);
  color: var(--text-primary);
}

.customization-form .form-group input:focus,
.customization-form .form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.customization-form .form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.customization-form .form-group small {
  display: block;
  margin-top: 0.25rem;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.customization-form .form-actions {
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  text-align: right;
}

/* Brand Grid */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.brand-item {
  text-align: center;
}

.brand-item h4 {
  margin: 0 0 0.75rem 0;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.brand-preview-box {
  background: var(--bg-tertiary);
  border: 2px dashed var(--border-medium);
  border-radius: 0.75rem;
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  margin-bottom: 0.75rem;
}

.brand-preview-box.dark {
  background: #1e293b;
}

.brand-preview-box img {
  max-width: 100%;
  max-height: 80px;
  object-fit: contain;
}

.brand-preview-box.empty {
  opacity: 0.5;
}

.brand-status {
  margin-bottom: 0.5rem;
}

.brand-status .status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 500;
}

.brand-status .status-badge.default {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.brand-status .status-badge.custom {
  background: #dcfce7;
  color: #166534;
}

[data-theme="dark"] .brand-status .status-badge.custom {
  background: #14532d;
  color: #86efac;
}

.brand-item small {
  display: block;
  color: var(--text-tertiary);
  font-size: 0.7rem;
  margin-bottom: 0.75rem;
}

.brand-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

@media (max-width: 992px) {
  .brand-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .brand-grid {
    grid-template-columns: 1fr;
  }

  .customization-section {
    padding: 1rem;
  }
}

/* Tabs */
.superadmin-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-light);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  border-radius: 0.5rem 0.5rem 0 0;
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 3px solid transparent;
  text-decoration: none;
}

a.tab-btn {
  font-family: var(--font-family, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
}

.tab-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--bg-primary);
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.tab-btn i {
  font-size: 1.125rem;
}

/* Tab Content */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.section-header h2 i {
  color: var(--primary-color);
}

.section-actions {
  display: flex;
  gap: 0.5rem;
}

/* Data Table */
/* ==================== Data table — 2026 compact + responsive ==================== */
.table-container {
  background: var(--bg-primary);
  border-radius: 14px;
  overflow-x: auto; /* horizontal scroll on narrow viewports */
  overflow-y: visible;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  -webkit-overflow-scrolling: touch;
}

.table-container table {
  overflow: visible;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  min-width: 760px; /* prevents columns from collapsing too much; horizontal scroll below this */
}

.data-table tbody,
.data-table tr {
  overflow: visible;
}

.data-table th {
  background: var(--bg-tertiary);
  padding: 10px 14px;
  text-align: left;
  font-weight: 700;
  font-size: 11px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 2;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
  font-size: 13px;
  /* Universal truncation for all cells */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.data-table td:last-child {
  overflow: visible;
  position: relative;
  white-space: normal;
  max-width: none;
}

.data-table tr:hover {
  background: var(--bg-hover);
}

.data-table tr:last-child td {
  border-bottom: none;
}

/* Table Elements */
.user-email {
  font-weight: 500;
  color: var(--text-primary);
}

.badge {
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.badge-superadmin {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.badge-admin {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: white;
}

.badge-active {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* ==================== CREATE USER MODAL STYLES ==================== */

#createUserModal .modal-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, #764ba2 100%);
  color: white;
  border-radius: 0.75rem 0.75rem 0 0;
  padding: 1.25rem 1.5rem;
}

#createUserModal .modal-header h2 {
  color: white;
}

#createUserModal .modal-header h2 i {
  color: white;
}

#createUserModal .modal-header .modal-close {
  color: white;
  opacity: 0.8;
}

#createUserModal .modal-header .modal-close:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.1);
}

#createUserModal .modal-body {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
}

#createUserModal .form-group {
  margin-bottom: 0;
}

#createUserModal .form-group label {
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

#createUserModal .form-group label i {
  font-size: 1.1rem;
  color: var(--primary-color);
}

#createUserModal .form-group input,
#createUserModal .form-group select {
  width: 100%;
}

/* Role select with visual indicators */
#create-role {
  font-weight: 500;
}

#create-role option[value="user"] {
  padding-left: 0.5rem;
}

#create-role option[value="admin"] {
  background: linear-gradient(90deg, rgba(240, 147, 251, 0.1), transparent);
}

#create-role option[value="superadmin"] {
  background: linear-gradient(90deg, rgba(102, 126, 234, 0.1), transparent);
}

/* Password field container */
.password-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrapper input {
  flex: 1;
  padding-right: 3rem !important;
}

.password-input-wrapper .password-toggle {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  color: var(--text-secondary);
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.password-input-wrapper .password-toggle:hover {
  color: var(--primary-color);
  background: var(--bg-tertiary);
}

/* Role description help text */
#createUserModal .form-help {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.875rem;
  background: var(--bg-tertiary);
  border-radius: 0.5rem;
  border-left: 3px solid var(--primary-color);
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

#createUserModal .form-help div {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0;
}

#createUserModal .form-help strong {
  color: var(--text-primary);
  min-width: 110px;
}

/* Plan group transition */
#create-plan-group {
  transition: opacity 0.2s ease, max-height 0.3s ease;
  overflow: hidden;
}

#create-plan-group[style*="display: none"] {
  opacity: 0;
  max-height: 0;
}

/* Modal footer buttons */
#createUserModal .modal-footer {
  border-top: 1px solid var(--border-light);
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 0 0 0.75rem 0.75rem;
}

#createUserModal .modal-footer .btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, #764ba2 100%);
  border: none;
}

#createUserModal .modal-footer .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* ==================== END CREATE USER MODAL STYLES ==================== */

.role-select, .plan-select, .status-select {
  padding: 5px 8px;
  border: 1px solid var(--border-light);
  border-radius: 7px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 12px;
  min-width: 80px;
  max-width: 160px;
  cursor: pointer;
  font-family: inherit;
}

.user-email {
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  max-width: 220px;
}

.editable-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  max-width: 140px;
}

.message-count {
  font-weight: 600;
  font-size: 12px;
  color: var(--primary-color);
}

.unlimited-text {
  color: var(--success-color, #10b981);
  font-weight: 500;
  font-size: 12px;
}

.text-muted {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 12px;
}

.date-text {
  font-size: 12px;
  color: var(--text-secondary);
}

.action-buttons {
  display: flex;
  gap: 3px;
  flex-wrap: nowrap;
}

.btn-icon {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 14px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.btn-icon:hover {
  transform: translateY(-1px);
  color: var(--text-primary);
}

.btn-icon.reset-btn:hover {
  background: var(--primary-color);
  color: white;
}

.btn-icon.delete-btn:hover {
  background: var(--danger-color);
  color: white;
}

.btn-icon.view-btn:hover {
  background: #6366f1;
  color: white;
}

.btn-icon.edit-btn:hover {
  background: #f59e0b;
  color: white;
}

.btn-icon.impersonate-btn:hover {
  background: #8b5cf6;
  color: white;
}

.btn-icon.password-btn:hover {
  background: #0ea5e9;
  color: white;
}

/* Impersonation Pill - Minimal floating indicator */
.impersonation-pill {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 9999;
  font-family: inherit;
}

.impersonation-pill-collapsed {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(139, 92, 246, 0.9);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  color: white;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
  transition: all 0.2s ease;
}

.impersonation-pill-collapsed i {
  font-size: 14px;
}

.impersonation-pill-collapsed:hover {
  background: rgba(139, 92, 246, 1);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.impersonation-pill-expanded {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  background: rgba(30, 30, 40, 0.95);
  backdrop-filter: blur(12px);
  border-radius: 12px;
  border: 1px solid rgba(139, 92, 246, 0.3);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  min-width: 200px;
}

.impersonation-pill:hover .impersonation-pill-collapsed,
.impersonation-pill:focus-within .impersonation-pill-collapsed {
  display: none;
}

.impersonation-pill:hover .impersonation-pill-expanded,
.impersonation-pill:focus-within .impersonation-pill-expanded {
  display: flex;
}

.impersonation-pill-info {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
}

.impersonation-pill-info i {
  color: #8b5cf6;
  font-size: 16px;
}

.impersonation-pill-info span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 180px;
}

.impersonation-pill-exit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  background: #8b5cf6;
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.impersonation-pill-exit:hover {
  background: #7c3aed;
  transform: translateY(-1px);
}

.impersonation-pill-exit i {
  font-size: 14px;
}

/* Mobile: icon only, tap to expand */
@media (max-width: 768px) {
  .impersonation-pill {
    top: 8px;
    right: 8px;
  }

  .impersonation-pill-collapsed {
    padding: 8px;
    border-radius: 50%;
  }

  .impersonation-pill-collapsed .impersonation-pill-label {
    display: none;
  }

  .impersonation-pill-collapsed i {
    font-size: 16px;
  }

  .impersonation-pill-expanded {
    right: 0;
    min-width: 180px;
  }
}

/* User Detail Modals */
.user-detail-section {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.user-detail-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.user-detail-section h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.user-detail-section h3 i {
  color: var(--primary-color);
  font-size: 1.25rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.detail-item label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.detail-item p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

@media (max-width: 600px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

/* Plans Grid */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.plan-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all 0.2s ease;
}

.plan-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.plan-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.plan-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.toggle-btn {
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--danger-color);
  color: white;
}

.toggle-btn.active {
  background: var(--success-color, #10b981);
}

.toggle-btn:hover {
  transform: scale(1.05);
}

.plan-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.plan-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.plan-stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.plan-stat-value {
  font-weight: 600;
  color: var(--text-primary);
}

.plan-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-content {
  background: var(--bg-primary);
  border-radius: 1rem;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  width: 2rem;
  height: 2rem;
  border: none;
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 0.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.modal-footer {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  padding: 1.5rem;
  border-top: 1px solid var(--border-light);
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  padding: 1.5rem;
  border-top: 1px solid var(--border-light);
  margin-top: 1.5rem;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.form-section {
  margin-top: 1.5rem;
}

.form-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.parameters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.parameters-grid .form-group {
  margin-bottom: 0;
}

/* Notifications */
.notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1001;
  transform: translateX(400px);
  opacity: 0;
  transition: all 0.3s ease;
  max-width: 400px;
}

.notification.show {
  transform: translateX(0);
  opacity: 1;
}

.notification.success {
  border-left: 4px solid var(--success-color, #10b981);
}

.notification.error {
  border-left: 4px solid var(--danger-color);
}

.notification.info {
  border-left: 4px solid var(--primary-color);
}

.notification i {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.notification.success i {
  color: var(--success-color, #10b981);
}

.notification.error i {
  color: var(--danger-color);
}

.notification.info i {
  color: var(--primary-color);
}

/* Manage Button Style */
.manage-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
}

.manage-btn:hover {
  background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
  .superadmin-page {
    padding: 0.5rem;
  }

  .superadmin-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .superadmin-header h1 {
    font-size: 1.25rem;
  }

  .superadmin-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 0.25rem;
    padding-bottom: 0.5rem;
  }

  .tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .section-header h2 {
    font-size: 1.1rem;
  }

  .table-container {
    overflow-x: auto;
    overflow-y: visible;
  }

  .data-table {
    min-width: 800px;
  }

  .plans-grid {
    grid-template-columns: 1fr;
  }

  .notification {
    right: 1rem;
    left: 1rem;
    transform: translateY(-100px);
    max-width: none;
  }

  .notification.show {
    transform: translateY(0);
  }

  .back-btn {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
  }

  .back-btn span {
    display: none;
  }

  .user-info {
    font-size: 0.75rem;
  }

  .user-info span {
    display: block;
  }
}

/* Configuration Tab Styles */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

/* Compact cards take less space */
.models-grid:has(.model-card.compact:not(.expanded)) {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

/* Expanded cards take more space */
.model-card.expanded {
  grid-column: span 2;
}

@media (max-width: 1200px) {
  .model-card.expanded {
    grid-column: span 1;
  }
}

.model-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

/* Compact state (default) */
.model-card.compact .model-details {
  display: none;
}

.model-card.compact .model-header {
  cursor: pointer;
  user-select: none;
}

/* Expanded state */
.model-card.expanded .model-details {
  display: block;
}

.model-card.expanded {
  background: var(--bg-primary);
  border-color: var(--accent-color);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.model-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

.model-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  text-align: center;
}

.model-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background: var(--accent-color);
  border-radius: 1rem;
  color: white;
  font-size: 2rem;
}

.model-info {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.model-info h3 {
  margin: 0 0 0.25rem 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.model-name {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-primary);
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border-color);
  display: inline-block;
  max-width: 100%;
  word-break: break-all;
}

.model-actions {
  display: flex;
  gap: 0.5rem;
}

.model-parameters {
  padding: 1.5rem;
}

.model-parameters h4 {
  margin: 0 0 1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.model-parameters h4::before {
  content: '';
  width: 0.25rem;
  height: 1rem;
  background: var(--accent-color);
  border-radius: 0.125rem;
}

.model-parameters ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.model-parameters li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.875rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.model-parameters li:last-child {
  border-bottom: none;
}

.model-parameters li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.model-parameters li ul {
  margin-top: 0.5rem;
  padding-left: 1rem;
}

.model-parameters li ul li {
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(var(--border-color-rgb), 0.5);
  font-size: 0.8rem;
}

/* New elements for expandable cards */
.model-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.status-badge.active {
  background: rgba(34, 197, 94, 0.1);
  color: #059669;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.expand-icon {
  font-size: 1.25rem;
  color: var(--text-secondary);
  transition: transform 0.2s ease, color 0.2s ease;
}

.model-card.compact .expand-icon:hover {
  color: var(--accent-color);
  transform: scale(1.1);
}

.model-details {
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.model-actions {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  background: rgba(var(--accent-color-rgb), 0.05);
  border-top: 1px solid var(--border-color);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.parameters-list {
  max-height: 300px;
  overflow-y: auto;
}

.parameters-list code {
  background: rgba(var(--accent-color-rgb), 0.1);
  color: var(--accent-color);
  padding: 0.125rem 0.25rem;
  border-radius: 0.25rem;
  font-size: 0.8em;
  font-family: 'Courier New', monospace;
}

.sub-params {
  margin-top: 0.5rem;
  padding-left: 1rem;
  border-left: 2px solid var(--border-color);
}

.no-params {
  color: var(--text-secondary);
  font-style: italic;
}

.loading-state, .error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  text-align: center;
  color: var(--text-secondary);
  grid-column: 1 / -1;
}

.loading-state i, .error-state i {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.6;
}

.loading-state i.ph-spin {
  animation: spin 1s linear infinite;
}

.error-state {
  color: #dc2626;
}

.error-state i {
  color: #dc2626;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Responsive adjustments for configuration tab */
@media (max-width: 768px) {
  .models-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .model-header {
    padding: 1rem;
  }

  .model-parameters {
    padding: 1rem;
  }

  .model-icon {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.25rem;
  }
}

/* Logo Styles */
.logo-container {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  height: 30px;
}

.logo-icon {
  max-height: 19px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  
  width: 120px;
  object-fit: contain;
}

/* Mobile Header Logo */
.mobile-header .header-logo {
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
}

.mobile-header .logo-icon {
  position: absolute;
  left: 3.25rem;
  top: 50%;
  transform: translateY(-50%);
}

.mobile-header .logo-text {
  /* Centered in container */
}

.mobile-header h1 {
  margin: 0;
  padding: 0;
  flex: 1;
  display: flex;
  justify-content: center;
}

/* Sidebar Logo */
.sidebar-header .logo {
  display: flex;
  align-items: center;
  width: 100%;
  justify-content: center;
}

.sidebar-header .sidebar-logo {
  height: 26px;
  width: 100%;
  justify-content: center;
}

.sidebar-header .logo-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.sidebar-header .logo-text {
  /* Centered in the container */
}

/* Login Page Logo */
.auth-logo .login-logo {
  height: 80px;
  margin: 0 auto;
  justify-content: center;
  gap: 0.75rem;
}

.auth-logo .login-logo .logo-icon {
  height: 80%;
}

.auth-logo .login-logo .logo-text {
  height: 70%;
}

/* Logo dinámico para login - con soporte de tema claro/oscuro */
.auth-logo .login-logo .logo-main {
  max-height: 100%;
  width: auto;
  max-width: 280px;
  object-fit: contain;
}

/* Welcome Screen Inline Logo */
.inline-logo {
  display: inline-flex;
  height: 1.5em;
  vertical-align: middle;
  margin: 0 0.25rem;
}

.logo-text-inline {
  height: 100%;
  width: auto;
  object-fit: contain;
}

/* Dark mode adjustments for logos - Auto invert to white */
:root[data-theme="dark"] .logo-container .logo-text {
  filter: brightness(0) invert(1);
}

:root[data-theme="dark"] .logo-container .logo-icon {
  filter: brightness(0.95);
}

/* Responsive Logo Sizes */
@media (max-width: 768px) {
  .logo-container {
    height: 22px;
  }

  .sidebar-header .sidebar-logo {
    height: 22px;
  }

  .auth-logo .login-logo {
    height: 64px;
  }

  .auth-logo .login-logo .logo-main {
    max-width: 120px;
  }

  .auth-card {
    padding: 1.25rem;
    margin: 0 0.5rem;
  }

  .auth-container {
    padding: 0.75rem 0.5rem;
  }

  .auth-header {
    margin-bottom: 1rem;
  }

  .auth-logo {
    margin-bottom: 0.5rem;
  }

  .auth-subtitle {
    font-size: 0.85rem;
  }

  .auth-tabs {
    margin-bottom: 1rem;
  }

  .auth-form {
    gap: 0.875rem;
  }

  .form-group {
    gap: 0.375rem;
  }

  .form-group input {
    padding: 0.75rem 0.875rem;
    font-size: 0.95rem;
  }

  .form-group label {
    font-size: 0.85rem;
  }

  .mobile-header .header-logo {
    height: 20px;
    min-width: 180px;
  }

  .inline-logo {
    height: 1.25em;
  }
}

/* Message Action Buttons */
.message-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.message.assistant:hover .message-actions,
.message.user:hover .message-actions {
  opacity: 1;
}

.message-action-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.25rem;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
}

.message-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
  transform: scale(1.05);
}

.message-action-btn:active {
  transform: scale(0.95);
}

.stop-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: #ef4444;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse-stop 1.5s ease-in-out infinite;
  transition: background 0.2s;
}
.stop-btn:hover {
  background: #dc2626;
}
@keyframes pulse-stop {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.save-html-artifact-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 5px 12px;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  background: transparent;
  border: 1px solid var(--border-color, #e0e0e0);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.save-html-artifact-btn:hover {
  color: #4361ee;
  border-color: #4361ee;
  background: rgba(67, 97, 238, 0.06);
}
.save-html-artifact-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.save-html-artifact-btn i {
  font-size: 1rem;
}

/* Download Container with Dropdown */
.download-container {
  position: relative;
  display: inline-block;
}

.download-dropdown {
  position: absolute;
  bottom: 100%;
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 120px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  margin-bottom: 0.25rem;
}

.download-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
  transition: background-color 0.15s ease;
  white-space: nowrap;
}

.dropdown-item:last-child {
  border-bottom: none;
}

.dropdown-item:hover {
  background: var(--bg-hover);
}

.dropdown-item:first-child {
  border-radius: 0.5rem 0.5rem 0 0;
}

.dropdown-item:last-child {
  border-radius: 0 0 0.5rem 0.5rem;
}

.dropdown-item i {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Message Delete Button */
.message-delete-btn {
  position: absolute;
  top: 0;
  left: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 50%;
  font-size: 0.75rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  opacity: 0;
  z-index: 150;
  box-shadow: var(--shadow-sm);
}

.message:hover .message-delete-btn {
  opacity: 1;
}

.message-delete-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  transform: scale(1.1);
}

/* Panel "N pasos realizados": va como primer hijo de .message-content, justo
   bajo los badges de esquina (papelera a la izquierda, info de modelo a la
   derecha, ambos absolute 22px). Reservar hueco a ambos lados evita el solape. */
.cc-tasks-summary {
  padding-left: 28px;
  padding-right: 28px;
}
.cc-tasks-summary > summary {
  list-style-position: inside;
}

.message-delete-btn:active {
  transform: scale(0.95);
}

/* Deleting animation */
.message.deleting {
  animation: fadeOut 0.3s ease forwards;
  pointer-events: none;
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-20px);
  }
}

/* Notification Styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 10000;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
  max-width: 300px;
}

.notification.show {
  opacity: 1;
  transform: translateX(0);
}

.notification.success {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.notification.error {
  background: var(--danger-color);
  color: white;
  border-color: var(--danger-color);
}

/* Mobile Responsiveness for Actions */
@media (max-width: 768px) {
  .message-actions {
    margin-top: 0.75rem;
    opacity: 1; /* Always visible on mobile */
  }

  .message-action-btn {
    min-width: 32px;
    height: 32px;
    font-size: 1rem;
  }

  .download-dropdown {
    min-width: 140px;
    right: -10px;
  }

  .notification {
    right: 10px;
    top: 10px;
    max-width: calc(100vw - 20px);
  }
}

/* ============================================
   SKELETON LOADING & SHIMMER EFFECTS
   ============================================ */

/* Skeleton base */
.skeleton-loader {
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
  border-radius: 8px;
}

/* Shimmer animation */
@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.skeleton-loader::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.2) 50%,
    transparent 100%
  );
  animation: shimmer 2s infinite ease-in-out;
}

[data-theme="dark"] .skeleton-loader::before {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
}

/* Image skeleton */
.skeleton-image {
  width: 100%;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.skeleton-image-icon {
  position: absolute;
  color: var(--text-tertiary);
  font-size: 48px;
  opacity: 0.3;
  z-index: 1;
  animation: pulse 2s ease-in-out infinite;
}

/* Video skeleton */
.skeleton-video {
  width: 100%;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.skeleton-video-icon {
  position: absolute;
  color: var(--text-tertiary);
  font-size: 64px;
  opacity: 0.3;
  z-index: 1;
  animation: pulse 2s ease-in-out infinite;
}

/* Audio skeleton */
.skeleton-audio {
  width: 100%;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.skeleton-audio-waves {
  display: flex;
  gap: 4px;
  align-items: center;
  z-index: 1;
}

.skeleton-audio-wave {
  width: 3px;
  background: var(--text-tertiary);
  border-radius: 2px;
  opacity: 0.3;
  animation: wave 1s ease-in-out infinite;
}

.skeleton-audio-wave:nth-child(1) {
  height: 12px;
  animation-delay: 0s;
}

.skeleton-audio-wave:nth-child(2) {
  height: 24px;
  animation-delay: 0.1s;
}

.skeleton-audio-wave:nth-child(3) {
  height: 18px;
  animation-delay: 0.2s;
}

.skeleton-audio-wave:nth-child(4) {
  height: 30px;
  animation-delay: 0.3s;
}

.skeleton-audio-wave:nth-child(5) {
  height: 20px;
  animation-delay: 0.4s;
}

.skeleton-audio-wave:nth-child(6) {
  height: 16px;
  animation-delay: 0.5s;
}

.skeleton-audio-wave:nth-child(7) {
  height: 24px;
  animation-delay: 0.6s;
}

@keyframes wave {
  0%, 100% {
    transform: scaleY(1);
  }
  50% {
    transform: scaleY(0.5);
  }
}

/* Progress bar */
.skeleton-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--bg-tertiary);
  overflow: hidden;
  z-index: 2;
}

.skeleton-progress-bar {
  height: 100%;
  background: var(--primary-color);
  transition: width 0.3s ease;
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 10px var(--primary-color);
}

/* Progress percentage */
.skeleton-progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-tertiary);
  font-size: 12px;
  font-weight: 600;
  z-index: 1;
  opacity: 0.5;
}

/* Pulse animation */
@keyframes pulse {
  0%, 100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.6;
  }
}

/* Loading fade-in */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.media-loaded {
  animation: fadeIn 0.5s ease-in;
}

/* Skeleton container in messages */
.message-image .skeleton-loader,
.message-video .skeleton-loader,
.message-audio .skeleton-loader {
  margin-bottom: 8px;
}

/* Hide skeleton when media is loaded */
.skeleton-loader.hidden {
  display: none;
}

/* ==================== SUPERADMIN FOOTER ==================== */
.superadmin-footer {
  background: transparent;
  padding: 0.75rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 3rem;
  border-top: 1px solid var(--border-light);
  opacity: 0.6;
  transition: opacity 0.2s;
}

.superadmin-footer:hover {
  opacity: 1;
}

/* ==================== USER FILTERS & PAGINATION ==================== */
.users-filters {
  background: var(--bg-secondary);
  padding: 1.25rem;
  border-radius: 0.75rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-light);
}

.search-box {
  position: relative;
  margin-bottom: 1rem;
}

.search-box i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 1.125rem;
}

.search-box input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 3rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9375rem;
  transition: all 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.filter-select {
  flex: 1;
  min-width: 150px;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.results-info {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: right;
}

.pagination-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding: 1rem;
}

.pagination-pages {
  display: flex;
  gap: 0.375rem;
}

.page-btn {
  min-width: 2.5rem;
  padding: 0.5rem 0.75rem;
}

.page-btn.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination-container .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  .filter-row {
    flex-direction: column;
  }

  .filter-select {
    width: 100%;
  }

  .results-info {
    text-align: center;
  }
}

/* ========================================
   Background Processing Indicator
   ======================================== */
.background-processing-indicator {
  position: fixed;
  bottom: 120px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--background-color);
  border: 2px solid var(--primary-color);
  border-radius: 30px;
  padding: 12px 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideUpFade 0.3s ease-out;
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.background-processing-indicator .processing-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.background-processing-indicator .processing-spinner {
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.background-processing-indicator span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
}

/* Dark mode adjustments */
body.dark-mode .background-processing-indicator {
  background: var(--message-bg);
  border-color: var(--primary-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Mobile responsive */
@media (max-width: 768px) {
  .background-processing-indicator {
    bottom: 100px;
    max-width: 90%;
    padding: 10px 20px;
  }

  .background-processing-indicator span {
    font-size: 13px;
  }

  .background-processing-indicator .processing-spinner {
    width: 18px;
    height: 18px;
  }
}

/* ==================== MY SHARES PAGE ==================== */

.my-shares-page {
  min-height: 100vh;
  background: var(--bg-secondary);
  padding-bottom: 2rem;
}

.my-shares-page .page-header {
  background: var(--gradient-primary);
  color: white;
  padding: 2rem 0;
  margin-bottom: 2rem;
}

.my-shares-page .page-header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.my-shares-page .back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  transition: color 0.2s;
}

.my-shares-page .back-btn:hover {
  color: white;
}

.my-shares-page .page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.my-shares-page .page-header h1 i {
  font-size: 2.5rem;
}

.my-shares-page .subtitle {
  font-size: 1rem;
  opacity: 0.9;
  margin: 0;
}

.my-shares-page .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Empty State */
.empty-state-large {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-primary);
  border-radius: 1rem;
  border: 2px dashed var(--border-light);
}

.empty-state-large i {
  font-size: 5rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
}

.empty-state-large h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.75rem 0;
}

.empty-state-large p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0 0 2rem 0;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Shares Grid */
.shares-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Share Card */
.share-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  padding: 1.25rem;
  transition: all 0.3s ease;
  position: relative;
}

.share-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.share-card.inactive {
  opacity: 0.6;
  background: var(--bg-secondary);
}

.share-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-light);
}

.share-id {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-color);
}

.share-status {
  display: flex;
  gap: 0.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-active {
  background: #d1fae5;
  color: #065f46;
}

.badge-inactive {
  background: #e5e7eb;
  color: #6b7280;
}

.badge-expired {
  background: #fee2e2;
  color: #991b1b;
}

body.dark-mode .badge-active {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
}

body.dark-mode .badge-inactive {
  background: rgba(107, 114, 128, 0.2);
  color: #9ca3af;
}

body.dark-mode .badge-expired {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

/* Share Card Meta */
.share-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.share-card-meta span {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.share-card-meta i {
  font-size: 1rem;
  color: var(--primary-color);
}

/* Share Card Actions */
.share-card-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1.25rem;
}

.btn-icon:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.btn-icon.btn-danger:hover {
  background: #ef4444;
  border-color: #ef4444;
}

/* ==================== ANALYTICS MODAL ==================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  margin: 2rem auto;
  background: var(--bg-primary);
  border-radius: 1rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  border-radius: 1rem 1rem 0 0;
}

.modal-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.modal-header h3 i {
  color: var(--primary-color);
}

.btn-close {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all 0.2s;
}

.btn-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 0 0 1rem 1rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  padding: 1.25rem;
  text-align: center;
  transition: all 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 0.75rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* Chart Section */
.chart-section {
  margin-bottom: 2rem;
}

.chart-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 180px;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  margin-bottom: 0.5rem;
}

.chart-bar {
  flex: 1;
  background: var(--gradient-primary);
  border-radius: 0.375rem 0.375rem 0 0;
  min-height: 8px;
  position: relative;
  transition: all 0.3s ease;
  cursor: pointer;
}

.chart-bar:hover {
  opacity: 0.8;
  transform: scaleY(1.05);
}

.bar-label {
  position: absolute;
  top: -1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.chart-labels {
  display: flex;
  justify-content: space-around;
  padding: 0 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

/* QR Section */
.qr-section {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  margin-bottom: 1.5rem;
}

.qr-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.qr-section h4 i {
  color: var(--primary-color);
}

.qr-image {
  max-width: 300px;
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  background: white;
  padding: 1rem;
}

/* Link Section */
.link-section {
  margin-bottom: 1rem;
}

.link-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.link-section h4 i {
  color: var(--primary-color);
}

.link-copy-row {
  display: flex;
  gap: 0.5rem;
}

.link-copy-row input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
}

.link-copy-row input:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Notification Toast */
.notification-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-light);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
}

.notification-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.notification-toast i {
  font-size: 1.5rem;
}

.notification-success {
  border-color: #10b981;
}

.notification-success i {
  color: #10b981;
}

.notification-error {
  border-color: #ef4444;
}

.notification-error i {
  color: #ef4444;
}

.notification-info {
  border-color: var(--primary-color);
}

.notification-info i {
  color: var(--primary-color);
}

/* ==================== RESPONSIVE DESIGN ==================== */

@media (max-width: 768px) {
  .my-shares-page .page-header {
    padding: 1.5rem 0;
  }

  .my-shares-page .page-header h1 {
    font-size: 1.5rem;
  }

  .my-shares-page .page-header h1 i {
    font-size: 2rem;
  }

  .shares-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .share-card-actions {
    justify-content: center;
  }

  .modal-content {
    margin: 1rem;
    max-height: calc(100vh - 2rem);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-card {
    padding: 1rem;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .bar-chart {
    height: 140px;
  }

  .notification-toast {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
    max-width: calc(100% - 2rem);
  }
}

/* ============================================
   Quick Plugin Modal (Prompts, etc.)
   ============================================ */

.modal.active {
  display: flex;
}

.quick-plugin-modal-content {
  max-width: 480px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.quick-plugin-modal-content .modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  min-height: 300px;
}

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--text-secondary);
}

.loading-spinner i {
  font-size: 32px;
  animation: spin 1s linear infinite;
}

.loading-spinner p {
  margin-top: 10px;
  font-size: 14px;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Mode Separator */
.mode-separator {
  width: 1px;
  height: 24px;
  background: var(--border-light);
  margin: 0 4px;
}

/* Quick Button Style */
.mode-btn.quick-btn {
  color: var(--accent-color);
}

.mode-btn.quick-btn:hover {
  color: var(--primary-color);
  background: rgba(99, 102, 241, 0.1);
}

/* Error state in modal */
.quick-plugin-modal-content .error {
  color: var(--danger-color);
  text-align: center;
  padding: 40px 20px;
}

/* Responsive for quick plugin modal */
@media (max-width: 640px) {
  .quick-plugin-modal-content {
    max-width: 100%;
    max-height: 90vh;
    margin: 10px;
  }
}

/* ===== Confirm Modal with Timeout ===== */
.confirm-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.confirm-modal.active {
  opacity: 1;
  visibility: visible;
}

.confirm-modal-content {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 1.5rem;
  max-width: 360px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.2s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.confirm-modal.active .confirm-modal-content {
  transform: scale(1);
}

.confirm-modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  background: rgba(239, 68, 68, 0.1);
}

.confirm-modal-icon i {
  font-size: 1.75rem;
  color: var(--danger-color, #ef4444);
}

.confirm-modal[data-type="warning"] .confirm-modal-icon {
  background: rgba(245, 158, 11, 0.1);
}

.confirm-modal[data-type="warning"] .confirm-modal-icon i {
  color: #f59e0b;
}

.confirm-modal[data-type="info"] .confirm-modal-icon {
  background: rgba(59, 130, 246, 0.1);
}

.confirm-modal[data-type="info"] .confirm-modal-icon i {
  color: #3b82f6;
}

.confirm-modal-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.5rem;
}

.confirm-modal-message {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0 0 1.5rem;
  line-height: 1.5;
}

.confirm-modal-actions {
  display: flex;
  gap: 0.75rem;
}

.confirm-modal-btn {
  flex: 1;
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.confirm-modal-cancel {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.confirm-modal-cancel:hover {
  background: var(--bg-tertiary);
}

.confirm-modal-confirm {
  background: var(--danger-color, #ef4444);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
}

.confirm-modal-confirm:hover {
  background: #dc2626;
}

.confirm-btn-countdown {
  font-size: 0.75rem;
  opacity: 0.9;
}

/* Dark mode adjustments */
[data-theme="dark"] .confirm-modal-content {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* ============================================
   Knowledge Base Sources Indicator
   ============================================ */

.kb-sources-indicator {
  margin-top: 0.75rem;
  background: var(--bg-secondary, #f8f9fa);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 8px;
  overflow: hidden;
  font-size: 0.875rem;
}

[data-theme="dark"] .kb-sources-indicator {
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.3);
}

.kb-sources-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  color: var(--primary-color, #6366f1);
  font-weight: 500;
  transition: background 0.2s;
}

.kb-sources-header:hover {
  background: var(--bg-hover, rgba(99, 102, 241, 0.1));
}

.kb-sources-header i.ph-books {
  font-size: 1rem;
}

.kb-sources-header span {
  flex: 1;
}

.kb-sources-toggle {
  background: none;
  border: none;
  color: inherit;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.kb-sources-list {
  border-top: 1px solid var(--border-color, #e5e7eb);
  max-height: 200px;
  overflow-y: auto;
  transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
}

.kb-sources-list.collapsed {
  max-height: 0;
  opacity: 0;
  border-top: none;
  padding: 0;
}

.kb-source-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  color: var(--text-primary, #1f2937);
  text-decoration: none;
  transition: background 0.2s;
  border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.kb-source-item:last-child {
  border-bottom: none;
}

.kb-source-item:hover {
  background: var(--bg-hover, rgba(99, 102, 241, 0.1));
}

.kb-source-item i {
  color: var(--primary-color, #6366f1);
  font-size: 1rem;
}

.kb-source-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kb-source-similarity {
  background: var(--primary-color, #6366f1);
  color: white;
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

[data-theme="dark"] .kb-source-item {
  color: var(--text-primary, #f3f4f6);
  border-color: rgba(99, 102, 241, 0.2);
}

/* ==========================================
   MEDIA LIBRARY MODAL
   ========================================== */

.modal-content-large {
  max-width: 900px;
  width: 95%;
  max-height: 85vh;
}

.media-library-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.media-library-tabs {
  display: flex;
  gap: 0.5rem;
}

.media-tab {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color, #e5e7eb);
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary, #6b7280);
  transition: all 0.2s;
}

.media-tab:hover {
  background: var(--bg-secondary, #f3f4f6);
}

.media-tab.active {
  background: var(--primary-color, #6366f1);
  color: white;
  border-color: var(--primary-color, #6366f1);
}

.media-library-info {
  font-size: 0.875rem;
  color: var(--text-secondary, #6b7280);
}

.media-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.75rem;
  max-height: 50vh;
  overflow-y: auto;
  padding: 0.5rem;
}

.media-library-loading,
.media-library-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--text-secondary, #6b7280);
  text-align: center;
}

.media-library-loading i,
.media-library-empty i {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.5;
}

.media-library-empty span {
  font-size: 0.8rem;
  opacity: 0.7;
}

.media-library-slots-info {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-secondary, #f3f4f6);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary, #6b7280);
  margin-bottom: 0.5rem;
}

.media-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s;
}

.media-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-item:hover {
  border-color: var(--primary-color, #6366f1);
  transform: scale(1.02);
}

.media-item.selected {
  border-color: var(--primary-color, #6366f1);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

.media-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.2s;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0.5rem;
}

.media-item:hover .media-item-overlay,
.media-item.selected .media-item-overlay {
  opacity: 1;
}

.media-item-check {
  align-self: flex-end;
}

.media-item-check i {
  font-size: 1.5rem;
  color: white;
  opacity: 0;
  transition: opacity 0.2s;
}

.media-item.selected .media-item-check i {
  opacity: 1;
  color: var(--primary-color, #6366f1);
  background: white;
  border-radius: 50%;
}

.media-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.media-item-source,
.media-item-date {
  font-size: 0.7rem;
  color: white;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.media-item-date {
  opacity: 0.8;
}

/* Shake animation for max selection */
.media-item.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Reference buttons container */
.reference-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.library-btn {
  flex: 1;
}

.library-btn i {
  margin-right: 0.25rem;
}

/* Library badge on reference items */
.edit-reference-item .library-badge,
.reference-thumbnail .library-badge {
  position: absolute;
  bottom: 4px;
  left: 4px;
  background: var(--primary-color, #6366f1);
  color: white;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

/* Dark theme adjustments */
[data-theme="dark"] .media-library-header {
  border-color: var(--border-color, #374151);
}

[data-theme="dark"] .media-tab {
  border-color: var(--border-color, #374151);
  color: var(--text-secondary, #9ca3af);
}

[data-theme="dark"] .media-tab:hover {
  background: var(--bg-tertiary, #1f2937);
}

[data-theme="dark"] .media-library-slots-info {
  background: var(--bg-tertiary, #1f2937);
}

[data-theme="dark"] .media-item {
  background: var(--bg-tertiary, #1f2937);
}

/* Responsive */
@media (max-width: 768px) {
  .modal-content-large {
    max-width: 100%;
    width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .media-library-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    max-height: 60vh;
  }

  .media-library-header {
    flex-direction: column;
    gap: 0.75rem;
    align-items: stretch;
  }
}

/* ==================== SIDE PANEL ==================== */

.side-panel {
  width: 0;
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-color);
  transition: width 0.3s ease, min-width 0.3s ease;
  position: relative;
  z-index: 50;
}

.side-panel.open {
  width: 480px;
  min-width: 360px;
  max-width: 92vw;
}

.side-panel-resize-handle {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  cursor: col-resize;
  z-index: 60;
  background: transparent;
  transition: background 0.2s;
}

.side-panel-resize-handle:hover,
.side-panel-resize-handle.dragging {
  background: var(--accent-primary, #667eea);
  opacity: 0.5;
}

.side-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  gap: 0.5rem;
  flex-shrink: 0;
  min-height: 48px;
  position: relative;
  z-index: 10;
}

.side-panel-tabs {
  display: flex;
  gap: 0.25rem;
  min-width: 0;
  overflow: hidden;
}

.side-panel-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.2s;
  white-space: nowrap;
}

.side-panel-tab:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.side-panel-tab.active {
  background: var(--bg-hover);
  color: var(--text-primary);
  font-weight: 600;
}

.side-panel-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
}

.side-panel-artifact-select {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  max-width: 140px;
  cursor: pointer;
}

.side-panel-action-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 2rem;
  height: 2rem;
  border-radius: 0.375rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.side-panel-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.side-panel-action-btn.success {
  color: var(--success-color, #22c55e);
}

/* Mobile menu for side panel */
.sp-mobile-only { display: none; }
.sp-mobile-menu-wrapper { position: relative; display: none; }

@media (max-width: 768px) {
  .sp-desktop-only { display: none !important; }
  .sp-mobile-only { display: flex !important; }
  .sp-mobile-menu-wrapper { display: block !important; }
}

.sp-mobile-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-5px);
  transition: all 0.15s ease;
}
.sp-mobile-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.sp-mobile-dropdown-section {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border-light);
}
.sp-mobile-artifact-select {
  width: 100%;
  padding: 0.3rem 0.4rem;
  font-size: 0.8rem;
  border: 1px solid var(--border-light);
  border-radius: 0.3rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
}
.sp-mobile-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-primary);
  text-align: left;
}
.sp-mobile-dropdown-item:hover {
  background: var(--bg-hover);
}
.sp-mobile-dropdown-item i {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.session-files-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  margin: 0.5rem 0;
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s ease;
}
.session-files-link-btn:hover {
  background: var(--accent-color, #4361ee);
  color: #fff;
  border-color: var(--accent-color, #4361ee);
}
.session-files-link-btn i {
  font-size: 0.9rem;
}

.side-panel-separator {
  width: 1px;
  height: 1.25rem;
  background: var(--border-color);
  flex-shrink: 0;
}

.side-panel-content {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.side-panel-tab-content {
  display: none;
  flex: 1;
  overflow: hidden;
  position: relative;
}

.side-panel-tab-content.active {
  display: flex;
  flex-direction: column;
}

.side-panel-iframe-container {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  position: relative;
}

.side-panel-iframe-container.desktop {
  max-width: 100%;
}

.side-panel-iframe-container.tablet {
  max-width: 768px;
  margin: 0 auto;
}

.side-panel-iframe-container.mobile {
  max-width: 375px;
  margin: 0 auto;
}

.side-panel-iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #ffffff;
}

/* Artifact editor (CodeMirror lateral) — Fase 1.3 */
.artifact-editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
}
.artifact-editor-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.artifact-editor-label i {
  color: var(--primary-color);
  flex-shrink: 0;
}
.artifact-editor-version {
  font-size: 11px;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 4px;
}
.artifact-editor-dirty {
  color: var(--warning-color, #f59e0b);
  font-size: 16px;
  line-height: 1;
  margin-left: 4px;
}
.artifact-editor-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.artifact-editor-actions .btn-sm {
  padding: 5px 10px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.artifact-editor-actions .btn-sm[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}
.artifact-editor-host {
  flex: 1;
  min-height: 0;
  position: relative;
  background: var(--bg-primary);
  display: flex;
  overflow: hidden;
}

/* Shell = wrapper that pairs gutter + textarea side-by-side at full height */
.artifact-editor-shell {
  display: flex;
  flex: 1;
  min-width: 0;
  min-height: 0;
  position: relative;
}

/* Gutter — line numbers column. Scroll is driven from the textarea's scroll
   handler so the numbers stay aligned with their lines.
   font-size/line-height/padding MUST match the textarea exactly. */
.artifact-editor-gutter {
  flex: 0 0 auto;
  min-width: 44px;
  padding: 12px 0;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-light);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  line-height: 1.55;
  text-align: right;
  color: var(--text-tertiary);
  user-select: none;
  overflow: hidden;
  scrollbar-width: none;
}
.artifact-editor-gutter::-webkit-scrollbar { display: none; }
.ae-gutter-line {
  padding: 0 12px 0 10px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  transition: color 0.08s ease, background 0.08s ease;
}
.ae-gutter-line.active {
  color: var(--primary-color);
  background: var(--bg-hover);
  font-weight: 600;
}

/* Edit area = relative container that stacks the highlight layer (backing)
   and the textarea (foreground, transparent text). The font-family, size,
   line-height, tab-size, padding, white-space MUST be identical across the
   two so caret/cursor/selection align perfectly with the colored tokens. */
.ae-edit-area {
  flex: 1;
  min-width: 0;
  min-height: 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

/* Backing layer — colored HTML produced by highlight.js. Non-interactive. */
.ae-highlight {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 12px 14px;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  line-height: 1.55;
  tab-size: 2;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  overflow: hidden;
  pointer-events: none;
  background: transparent;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}
.ae-highlight code {
  background: transparent !important;
  padding: 0 !important;
  font: inherit !important;
  display: block;
}

/* Textarea — the foreground edit surface. Text itself is transparent so only
   the highlight layer paints characters; we keep caret + selection visible. */
.artifact-editor-textarea {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  resize: none;
  padding: 12px 14px;
  margin: 0;
  background: transparent;
  color: transparent;
  caret-color: var(--primary-color);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  line-height: 1.55;
  tab-size: 2;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-font-smoothing: antialiased;
  -webkit-text-fill-color: transparent;
}
.artifact-editor-textarea::placeholder { color: var(--text-tertiary); }
.artifact-editor-textarea:focus { outline: none; }
.artifact-editor-textarea::selection {
  background: rgba(99, 102, 241, 0.4);
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* Thin custom scrollbar — discreet on the side panel */
.artifact-editor-textarea::-webkit-scrollbar { width: 10px; height: 10px; }
.artifact-editor-textarea::-webkit-scrollbar-track { background: transparent; }
.artifact-editor-textarea::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb, rgba(127, 127, 127, 0.35));
  border-radius: 5px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.artifact-editor-textarea::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover, rgba(127, 127, 127, 0.55));
  background-clip: padding-box;
  border: 2px solid transparent;
}
.artifact-editor-textarea::-webkit-scrollbar-corner { background: transparent; }
.artifact-editor-history-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 280px;
  max-height: 340px;
  overflow: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  padding: 4px;
}
.artifact-editor-history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  color: var(--text-primary);
  text-align: left;
}
.artifact-editor-history-item:hover {
  background: var(--bg-hover);
}
.artifact-editor-history-item .hv-ver {
  font-weight: 600;
  color: var(--primary-color);
  min-width: 28px;
}
.artifact-editor-history-item .hv-source {
  color: var(--text-tertiary);
  font-size: 11px;
  padding: 1px 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
}
.artifact-editor-history-item .hv-date {
  color: var(--text-tertiary);
  font-size: 11px;
  margin-left: auto;
}
.artifact-editor-history-loading,
.artifact-editor-history-empty {
  padding: 12px;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 12px;
}

/* Image picker modal — Fase 2 */
.image-picker-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.image-picker-modal.open { display: flex; }
.image-picker-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
}
.image-picker-dialog {
  position: relative;
  width: min(880px, 92vw);
  height: min(640px, 86vh);
  background: var(--bg-primary);
  border-radius: 10px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.image-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
}
.image-picker-tabs {
  display: flex;
  gap: 4px;
}
.ipm-tab {
  background: transparent;
  border: 1px solid transparent;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.ipm-tab:hover { background: var(--bg-hover); color: var(--text-primary); }
.ipm-tab.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-medium);
}
.ipm-close {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}
.ipm-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.image-picker-body {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}
.ipm-pane {
  display: none;
  height: 100%;
  flex-direction: column;
  padding: 12px;
  overflow: auto;
}
.ipm-pane.active { display: flex; }
.ipm-session-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
  flex-shrink: 0;
}
.ipm-search {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 13px;
}
.ipm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  align-content: start;
  flex: 1;
  overflow: auto;
}
.ipm-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  padding: 0;
  transition: transform 0.08s ease, border-color 0.08s ease;
}
.ipm-card:hover {
  transform: translateY(-1px);
  border-color: var(--primary-color);
}
.ipm-card-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--bg-tertiary);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ipm-card-thumb img,
.ipm-card-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ipm-card-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.ipm-card-name {
  padding: 6px 8px;
  font-size: 11px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: left;
}
.ipm-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 16px;
  color: var(--text-tertiary);
  font-size: 13px;
  gap: 8px;
}
.ipm-empty i { font-size: 32px; }
.ipm-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 2px dashed var(--border-medium);
  border-radius: 10px;
  padding: 36px 16px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background 0.08s ease, border-color 0.08s ease;
}
.ipm-drop:hover, .ipm-drop.drag {
  background: var(--bg-hover);
  border-color: var(--primary-color);
}
.ipm-drop-icon { font-size: 36px; color: var(--primary-color); }
.ipm-drop-label { font-size: 14px; font-weight: 500; }
.ipm-drop-sub { font-size: 12px; color: var(--text-tertiary); }
.ipm-upload-progress { margin-top: 12px; }
.ipm-up-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--bg-secondary);
  font-size: 13px;
}
.ipm-up-row.ok { color: #16a34a; }
.ipm-up-row.err { color: var(--danger-color); }
.ipm-gen-prompt {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 13px;
  resize: vertical;
  font-family: inherit;
}
.ipm-gen-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}
.ipm-gen-status { font-size: 12px; color: var(--text-tertiary); }
.ipm-gen-hint { margin-top: 8px; font-size: 11px; color: var(--text-tertiary); }
.ipm-gen-result { margin-top: 16px; }
.ipm-gen-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
  max-width: 320px;
}
.ipm-gen-card img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border-light);
}

/* Inline edit toolbar (Fase 3.1) */
#sidePanelInlineEdit.active {
  background: var(--primary-color);
  color: white;
}
.inline-edit-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}
.inline-edit-toolbar .iet-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}
.inline-edit-toolbar .iet-actions {
  display: inline-flex;
  gap: 6px;
}

/* Quick-styles floating overlay (Fase 3.2 rewritten) */
#sidePanelStylePanel.active {
  background: var(--primary-color);
  color: white;
}
.artifact-style-overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 90%;
  background: var(--bg-primary);
  border-left: 1px solid var(--border-medium);
  box-shadow: -4px 0 16px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  z-index: 50;
  font-size: 13px;
}
.aso-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
}
.aso-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--text-primary);
}
.aso-close {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 16px;
  padding: 4px 6px;
  border-radius: 4px;
}
.aso-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.aso-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}
.aso-section { margin-bottom: 18px; }
.aso-section:last-child { margin-bottom: 0; }
.aso-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  font-weight: 600;
}
.aso-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}
.aso-label {
  font-size: 12px;
  color: var(--text-secondary);
}
.aso-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
/* Extracted-palette swatches */
.aso-palette {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}
.aso-swatch {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  cursor: pointer;
}
.aso-swatch input[type="color"] {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  padding: 0;
  background: transparent;
  cursor: pointer;
}
.aso-swatch-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
}
.aso-swatch-hex {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 9px;
  color: var(--text-secondary);
}
.aso-swatch-count {
  font-size: 9px;
  color: var(--text-tertiary);
}
.aso-empty {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.5;
  padding: 4px 0;
}
.aso-hint {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 4px;
  font-family: ui-monospace, Menlo, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.aso-select {
  flex: 1;
  padding: 5px 8px;
  border: 1px solid var(--border-medium);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 12px;
  font-family: inherit;
}
.aso-control input[type="range"] {
  flex: 1;
  accent-color: var(--primary-color);
}
.aso-unit {
  font-size: 11px;
  color: var(--text-tertiary);
  min-width: 32px;
  text-align: right;
}
.aso-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.side-panel-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
  gap: 0.5rem;
}

.side-panel-empty i {
  font-size: 3rem;
  opacity: 0.3;
}

.side-panel-empty p {
  font-size: 1rem;
  font-weight: 500;
}

.side-panel-empty span {
  font-size: 0.8rem;
  opacity: 0.6;
}

/* Session files button in input area */
.session-files-btn {
  background: var(--bg-tertiary, rgba(150, 150, 150, 0.1));
  color: var(--text-tertiary);
  border: none;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.session-files-btn:hover {
  background: var(--bg-hover, rgba(150, 150, 150, 0.2));
  color: var(--text-secondary);
  transform: scale(1.1);
}

.session-files-btn i {
  font-size: 1.05rem;
}

/* Session Files Header */
.session-files-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.session-files-title {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.session-files-title i {
  font-size: 0.9375rem;
}

.session-files-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.session-files-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border: none;
  background: none;
  color: var(--text-secondary);
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.session-files-action-btn:hover {
  background: var(--bg-hover);
  color: var(--accent-color);
}

.session-files-action-btn.active {
  color: var(--accent-primary, #667eea);
  background: rgba(102, 126, 234, 0.1);
}

.session-files-action-btn.spinning i {
  animation: session-files-spin 0.6s linear infinite;
}

@keyframes session-files-spin {
  to { transform: rotate(360deg); }
}

/* Session Files Grid */
.session-files-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.75rem;
  padding: 0.75rem;
  overflow-y: auto;
  flex: 1;
}

.session-file-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  text-align: center;
  position: relative;
}

.session-file-card:hover {
  border-color: var(--accent-primary, #667eea);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.session-file-card .file-icon {
  font-size: 2rem;
  color: var(--text-secondary);
}

.session-file-card .file-thumb {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 0.375rem;
}

.session-file-card .file-name {
  font-size: 0.7rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.session-file-card .file-badge {
  font-size: 0.6rem;
  padding: 0.1rem 0.4rem;
  border-radius: 0.25rem;
  background: var(--accent-primary, #667eea);
  color: #fff;
}

/* Kebab menu on file cards */
.file-kebab-btn {
  position: absolute;
  top: 0.25rem;
  right: 0.25rem;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-tertiary);
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
  z-index: 2;
}

.session-file-card:hover .file-kebab-btn,
.file-kebab-btn.open {
  opacity: 1;
}

.file-kebab-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* File context menu (dropdown) */
.file-context-menu {
  position: fixed;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  z-index: 99999;
  min-width: 140px;
  padding: 0.25rem;
  display: none;
}

.file-context-menu.open {
  display: block;
}

.file-context-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  border-radius: 0.375rem;
  width: 100%;
  text-align: left;
  transition: background 0.15s;
}

.file-context-menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.file-context-menu-item.danger {
  color: #ef4444;
}

.file-context-menu-item.danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

/* Side panel download dropdown items */
.download-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  border-radius: 6px;
  white-space: nowrap;
}

.download-dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.download-dropdown-item .download-hint {
  margin-left: auto;
  font-size: 11px;
  opacity: 0.5;
}

/* Session Files List View */
.session-files-list {
  display: flex;
  flex-direction: column;
  padding: 0.375rem;
  overflow-y: auto;
  flex: 1;
  gap: 1px;
}

/* Cabecera y filas comparten la MISMA rejilla de columnas: Nombre | Tipo | Tamaño | Fecha | ⋮ */
.session-files-list-head,
.session-file-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 52px 60px 84px 22px;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.5rem;
}

.session-files-list-head {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  z-index: 1;
}
.session-files-list-head .sfl-size { text-align: right; }

.session-file-row {
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}

.session-file-row:hover {
  background: var(--bg-hover);
}

.sfl-col { min-width: 0; }

.sfl-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.session-file-row .file-row-icon {
  font-size: 1.05rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  width: 1.25rem;
  text-align: center;
}

.session-file-row .file-row-thumb {
  width: 1.4rem;
  height: 1.4rem;
  object-fit: cover;
  border-radius: 0.25rem;
  flex-shrink: 0;
}

.session-file-row .file-row-name {
  font-size: 0.75rem;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sfl-size, .sfl-date {
  font-size: 0.66rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sfl-size { text-align: right; }

.sfl-type { overflow: hidden; }
.sfl-type .file-type-badge { max-width: 100%; }

.sfl-kebab { display: flex; justify-content: center; }

.session-file-row .file-kebab-btn {
  position: static;
  opacity: 0;
  flex-shrink: 0;
}

.session-file-row:hover .file-kebab-btn,
.session-file-row .file-kebab-btn.open {
  opacity: 1;
}

.session-file-row .file-context-menu {
  /* positioned via JS */
}

/* File type badges */
.file-type-badge {
  font-size: 0.6rem;
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.file-type-badge.badge-artifact {
  background: rgba(139, 92, 246, 0.15);
  color: #8b5cf6;
}

.file-type-badge.badge-image {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}

.file-type-badge.badge-audio {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.file-type-badge.badge-video {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.file-type-badge.badge-file {
  background: rgba(107, 114, 128, 0.15);
  color: #6b7280;
}

/* File Viewer Overlay (inside files tab) */
.file-viewer-overlay {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 10;
  background: var(--bg-primary);
  flex-direction: column;
}

.file-viewer-overlay.active {
  display: flex;
}

.file-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.file-viewer-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.file-viewer-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  font-size: 1.1rem;
  padding: 0.25rem;
  border-radius: 0.375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.file-viewer-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.file-viewer-content {
  flex: 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111;
}

.file-viewer-content img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.file-viewer-content video {
  max-width: 100%;
  max-height: 100%;
}

.file-viewer-content audio {
  width: 90%;
}

/* Upload dropzone */
.upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem 1rem;
  border: 2px dashed var(--border-color);
  border-radius: 0.75rem;
  text-align: center;
  color: var(--text-tertiary);
  transition: all 0.2s;
  cursor: pointer;
}

.upload-dropzone i {
  font-size: 2.5rem;
  color: var(--text-secondary);
}

.upload-dropzone p {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin: 0;
}

.upload-dropzone span {
  font-size: 0.75rem;
}

.upload-dropzone.drag-over {
  border-color: var(--accent-primary, #667eea);
  background: rgba(102, 126, 234, 0.05);
}

.upload-dropzone.drag-over i {
  color: var(--accent-primary, #667eea);
}

/* Upload preview list */
.upload-preview-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  max-height: 200px;
  overflow-y: auto;
  margin-top: 0.75rem;
}

.upload-preview-list:empty {
  display: none;
}

.upload-preview-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  font-size: 0.75rem;
}

.upload-preview-item i {
  font-size: 1rem;
  color: var(--text-secondary);
}

.upload-preview-item .upload-file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
}

.upload-preview-item .upload-file-size {
  color: var(--text-tertiary);
  font-size: 0.65rem;
  flex-shrink: 0;
}

.upload-preview-item .upload-file-remove {
  border: none;
  background: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.125rem;
  font-size: 0.875rem;
  line-height: 1;
  border-radius: 0.25rem;
  flex-shrink: 0;
}

.upload-preview-item .upload-file-remove:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* Compact mode adjustments for files */
.side-panel.compact .session-files-grid {
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 0.5rem;
  padding: 0.5rem;
}

.side-panel.compact .session-file-card .file-icon {
  font-size: 1.5rem;
}

.side-panel.compact .session-files-title {
  font-size: 0.75rem;
}

.side-panel.compact .session-files-action-btn {
  width: 1.5rem;
  height: 1.5rem;
  font-size: 0.875rem;
}

/* Artifact card in messages */
.artifact-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  margin: 0.5rem 0;
  cursor: pointer;
  transition: all 0.2s;
}

.artifact-card:hover {
  border-color: var(--accent-primary, #667eea);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.artifact-card-icon {
  font-size: 1.5rem;
  color: var(--accent-primary, #667eea);
  flex-shrink: 0;
}

.artifact-card-info {
  flex: 1;
  min-width: 0;
}

.artifact-card-title {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.artifact-card-meta {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.artifact-card-action {
  background: var(--accent-primary, #667eea);
  color: #fff;
  border: none;
  padding: 0.35rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.artifact-card-action:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

/* Dock button in HTML code blocks */
.dock-side-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: all 0.2s;
}

.dock-side-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

/* Back to chat button & mobile menu - hidden on desktop */
.side-panel-back-btn {
  display: none;
}

.side-panel-more-btn {
  display: flex;
}

.side-panel-mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 1001;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 170px;
  padding: 0.25rem 0;
}

.side-panel-mobile-menu.open {
  display: block;
}

.side-panel-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.45rem 0.85rem;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-primary);
  text-align: left;
  white-space: nowrap;
}

.side-panel-menu-item:hover {
  background: var(--bg-hover);
}

.side-panel-menu-item i {
  font-size: 0.9rem;
  color: var(--text-secondary);
  width: 16px;
  text-align: center;
}

/* Compact mode: narrow panel collapses actions into three-dot menu */
.side-panel.compact .side-panel-header {
  overflow: visible;
}

.side-panel.compact .side-panel-actions .side-panel-action-btn,
.side-panel.compact .side-panel-actions .side-panel-separator,
.side-panel.compact .side-panel-actions .side-panel-artifact-select {
  display: none;
}

.side-panel.compact .side-panel-actions .side-panel-action-btn.side-panel-more-btn,
.side-panel.compact .side-panel-actions #sidePanelClose {
  display: flex;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.side-panel.compact .side-panel-mobile-menu {
  display: none;
  position: absolute;
  top: 48px;
  right: 0.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.375rem;
  z-index: 310;
  box-shadow: var(--shadow-lg);
  min-width: 160px;
}

.side-panel.compact .side-panel-mobile-menu.open {
  display: flex;
  flex-direction: column;
}

.side-panel.compact .side-panel-menu-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.side-panel.compact .side-panel-menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.side-panel.compact .side-panel-menu-item i {
  font-size: 1rem;
  width: 1.25rem;
  text-align: center;
}

/* Mobile: Side panel becomes fullscreen overlay */
@media (max-width: 768px) {
  .side-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 0 !important;
    min-width: 0 !important;
    z-index: 300;
    border-left: none;
  }

  .side-panel.open {
    width: 100% !important;
    min-width: 100% !important;
  }

  .side-panel-resize-handle {
    display: none;
  }

  /* Back button */
  .side-panel-back-btn {
    display: flex;
    color: var(--primary-color);
    font-weight: 600;
  }

  /* Hide individual action buttons, separator, and close */
  .side-panel-actions .side-panel-action-btn,
  .side-panel-actions .side-panel-separator {
    display: none;
  }

  /* Show three-dot trigger and close button */
  .side-panel-actions .side-panel-more-btn,
  .side-panel-actions #sidePanelClose {
    display: flex;
  }

  /* Dropdown menu */
  .side-panel-mobile-menu {
    display: none;
    position: absolute;
    top: 48px;
    right: 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.375rem;
    z-index: 310;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    min-width: 160px;
  }

  .side-panel-mobile-menu.open {
    display: flex;
    flex-direction: column;
  }

  .side-panel-menu-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
  }

  .side-panel-menu-item:hover,
  .side-panel-menu-item:active {
    background: var(--bg-hover);
    color: var(--text-primary);
  }

  .side-panel-menu-item i {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
  }
}

/* ===== Diagram Viewer ===== */

/* Action buttons on diagram hover */
.mermaid-pending pre {
    opacity: 0.6;
    font-style: italic;
}
.mermaid-error pre {
    border-left: 3px solid var(--danger-color);
}
/* Hide Mermaid.js error rendering that leaks into the DOM */
#d[id^="mermaid-"], .error-icon, svg[id^="mermaid-"][aria-roledescription="error"] { display: none !important; }
body > #d[id^="mermaid-"] { display: none !important; }

.mermaid-diagram {
  position: relative;
}

.diagram-action-buttons {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 10;
}

.mermaid-diagram:hover .diagram-action-buttons {
  opacity: 1;
}

.diagram-chat-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background 0.15s ease;
  backdrop-filter: blur(4px);
}

.diagram-chat-btn:hover {
  background: rgba(0, 0, 0, 0.75);
}

/* Diagram Viewer Modal */
#diagramViewerModal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 2000;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#diagramViewerModal.show {
  display: flex;
}

.diagram-viewer-toolbar {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 6px;
  z-index: 10;
}

.diagram-viewer-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: background 0.15s ease;
}

.diagram-viewer-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.diagram-viewer-svg-container {
  width: 90vw;
  height: 85vh;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border-radius: 12px;
  user-select: none;
  -webkit-user-select: none;
}

.diagram-viewer-svg-container:active {
  cursor: grabbing;
}

.diagram-viewer-svg-container svg {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
}

.diagram-viewer-zoom-indicator {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 500;
  backdrop-filter: blur(4px);
  pointer-events: none;
  transition: opacity 0.3s ease;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .diagram-action-buttons {
    opacity: 1;
  }

  .diagram-viewer-toolbar {
    top: 10px;
    right: 10px;
    gap: 4px;
  }

  .diagram-viewer-btn {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .diagram-viewer-svg-container {
    width: 96vw;
    height: 88vh;
  }
}

/* TTS Voice Selection */
.tts-voice-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tts-voice-section h4 {
  margin: 0 0 8px 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.tts-voice-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tts-voice-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--bg-secondary);
  min-width: 140px;
}

.tts-voice-card:hover {
  border-color: var(--primary-color);
  background: var(--bg-hover);
}

.tts-voice-card.selected {
  border-color: var(--primary-color);
  background: color-mix(in srgb, var(--primary-color) 10%, var(--bg-secondary));
  box-shadow: 0 0 0 1px var(--primary-color);
}

.tts-voice-card .voice-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.tts-voice-card .voice-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* TTS inline confirmation in chat */
.tts-confirmation {
  padding: 12px;
  border-radius: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

.tts-confirmation .tts-voice-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}

.tts-voice-pill {
  padding: 6px 12px;
  border: 2px solid var(--border-color);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  background: var(--bg-secondary);
  transition: all 0.2s ease;
}

.tts-voice-pill:hover {
  border-color: var(--primary-color);
}

.tts-voice-pill.selected {
  border-color: var(--primary-color);
  background: color-mix(in srgb, var(--primary-color) 15%, var(--bg-secondary));
  font-weight: 600;
}

.tts-confirmation-buttons {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

/* ==================================================================
   SuperAdmin Sidebar Layout (Fase A — 2026 modern sidebar)
   ================================================================== */

.superadmin-page.sa-layout {
  padding: 0;
  min-height: 100vh;
  background: var(--bg-secondary);
  /* Sidebar is position:fixed so we reserve space with padding-left */
  padding-left: 260px;
}

.sa-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 260px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 100;
}

.sa-sidebar-header {
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.sa-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
}

.sa-brand-logo-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  min-width: 0;
  max-width: calc(100% - 85px); /* reserve space for the role badge */
  overflow: hidden;
  height: 40px;
}

.sa-brand-logo {
  max-width: 100%;
  max-height: 40px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.sa-brand-logo-fallback {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.sa-brand-icon-fallback {
  font-size: 26px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.sa-brand-fallback-text {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==================================================================
   Animated role badge (superadmin / admin / user)
   ================================================================== */

.sa-role-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px 5px 8px;
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border-radius: 999px;
  color: white;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.2);
  z-index: 1;
}

.sa-role-badge i {
  font-size: 12px;
  z-index: 2;
  position: relative;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.25));
}

.sa-role-badge-text {
  z-index: 2;
  position: relative;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

/* Shimmer overlay — subtle moving highlight */
.sa-role-badge::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 20%,
    rgba(255, 255, 255, 0.28) 50%,
    transparent 80%
  );
  transform: translateX(-100%);
  animation: saRoleBadgeShimmer 3.2s ease-in-out infinite;
  z-index: 1;
  pointer-events: none;
}

@keyframes saRoleBadgeShimmer {
  0%   { transform: translateX(-100%); }
  55%  { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

/* Pulse glow on the box-shadow */
@keyframes saRoleBadgePulseViolet {
  0%, 100% {
    box-shadow:
      0 0 0 0 rgba(168, 85, 247, 0),
      0 3px 10px rgba(99, 102, 241, 0.38);
  }
  50% {
    box-shadow:
      0 0 0 5px rgba(168, 85, 247, 0.18),
      0 5px 18px rgba(99, 102, 241, 0.55);
  }
}

@keyframes saRoleBadgePulseBlue {
  0%, 100% {
    box-shadow:
      0 0 0 0 rgba(14, 165, 233, 0),
      0 3px 10px rgba(59, 130, 246, 0.35);
  }
  50% {
    box-shadow:
      0 0 0 5px rgba(14, 165, 233, 0.15),
      0 5px 18px rgba(59, 130, 246, 0.48);
  }
}

/* ---- SUPERADMIN: gradient violet/pink + crown + pulse ---- */
.sa-role-superadmin {
  background: linear-gradient(
    135deg,
    #6366f1 0%,
    #8b5cf6 33%,
    #a855f7 66%,
    #ec4899 100%
  );
  background-size: 220% 220%;
  animation:
    saRoleGradientShift 5s ease-in-out infinite,
    saRoleBadgePulseViolet 2.8s ease-in-out infinite;
}

@keyframes saRoleGradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* ---- ADMIN: gradient blue + shield + pulse ---- */
.sa-role-admin {
  background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
  animation: saRoleBadgePulseBlue 3s ease-in-out infinite;
}

/* ---- USER: neutral gray, no animation ---- */
.sa-role-user {
  background: linear-gradient(135deg, #64748b 0%, #475569 100%);
  animation: none;
}
.sa-role-user::before { display: none; }

/* Respect reduced-motion accessibility */
@media (prefers-reduced-motion: reduce) {
  .sa-role-badge,
  .sa-role-badge::before {
    animation: none !important;
  }
}

.sa-sidebar-close {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
  padding: 4px;
}

.sa-nav {
  flex: 1;
  overflow-y: auto;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sa-nav-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Group header — clickable, collapsible */
.sa-nav-group-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 9px;
  font-family: inherit;
  width: 100%;
  text-align: left;
  transition: background 0.15s;
  /* Reset browser's <button> default styling which forces color: ButtonText
     (typically black regardless of dark mode) */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  color: var(--text-primary);
  font-size: inherit;
}
.sa-nav-group-header:hover {
  background: var(--bg-tertiary);
}

.sa-nav-group-text {
  flex: 1;
  min-width: 0;
}

.sa-nav-group-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--text-primary) !important;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.2;
}

.sa-nav-group-desc {
  font-size: 10px;
  color: var(--text-muted) !important;
  margin-top: 2px;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.sa-nav-group-chevron {
  font-size: 13px;
  color: var(--text-muted) !important;
  transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}
.sa-nav-group.expanded .sa-nav-group-chevron {
  transform: rotate(180deg);
}

/* Items grid — 2 columns, hidden when collapsed */
.sa-nav-group-items {
  display: none;
  /* minmax(0, 1fr) is the critical trick: the `0` min track size lets
     grid cells shrink below their content, so long labels don't force
     the grid to grow beyond the sidebar width */
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 6px;
  padding: 0 3px 2px;
  min-width: 0;
  max-width: 100%;
}
.sa-nav-group.expanded .sa-nav-group-items {
  display: grid;
  animation: saNavGroupItemsIn 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes saNavGroupItemsIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Nav item cards — icon on top, label below */
.sa-nav-item.tab-btn {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  padding: 14px 6px 12px !important;
  /* No border by default — active state uses box-shadow inset instead to
     avoid layout shift between inactive and active states */
  border: none !important;
  background: transparent !important;
  border-radius: 11px !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  color: var(--text-secondary) !important;
  cursor: pointer;
  text-align: center;
  margin: 0 !important;
  position: relative;
  min-height: 78px;
  transition: all 0.18s ease;
  border-bottom: none !important;
  width: 100%;
  max-width: 100%;
  min-width: 0 !important;
  box-sizing: border-box !important;
  overflow: hidden;
}

.sa-nav-item-icon {
  display: flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--bg-tertiary);
  transition: all 0.18s ease;
  flex-shrink: 0;
}

.sa-nav-item-icon i,
.sa-nav-item.tab-btn i {
  font-size: 20px !important;
  color: var(--text-secondary);
  transition: color 0.18s ease;
  margin: 0 !important;
}

.sa-nav-item-label {
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-secondary);
  transition: color 0.18s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  display: block;
}

.sa-nav-item.tab-btn:hover {
  background: var(--bg-tertiary) !important;
  transform: translateY(-1px);
}
.sa-nav-item.tab-btn:hover .sa-nav-item-icon {
  background: color-mix(in srgb, var(--primary-color) 15%, transparent);
}
.sa-nav-item.tab-btn:hover .sa-nav-item-icon i {
  color: var(--primary-color);
}
.sa-nav-item.tab-btn:hover .sa-nav-item-label {
  color: var(--text-primary);
}

/* Active state — tinted card + gradient icon box
   Uses box-shadow inset for the border effect to avoid layout shift */
.sa-nav-item.tab-btn.active {
  background: color-mix(in srgb, var(--primary-color) 10%, transparent) !important;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary-color) 35%, transparent);
}
.sa-nav-item.tab-btn.active .sa-nav-item-icon {
  background: linear-gradient(135deg, var(--primary-color), #4f46e5);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--primary-color) 38%, transparent);
}
.sa-nav-item.tab-btn.active .sa-nav-item-icon i,
.sa-nav-item.tab-btn.active i {
  color: white !important;
}
.sa-nav-item.tab-btn.active .sa-nav-item-label {
  color: var(--primary-color);
  font-weight: 700;
}

/* Orphan last item (groups with odd item count) spans both columns.
   Examples: Meta (1 item), Configuración (3 items — Personalización), Features (3 items — Referrals) */
.sa-nav-group-items > .sa-nav-item.tab-btn:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.sa-sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.sa-user {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.sa-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  overflow: hidden;
  flex-shrink: 0;
}
.sa-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.sa-user-avatar > i {
  font-size: 18px;
  flex-shrink: 0;
}

.sa-user-info {
  flex: 1;
  min-width: 0;
}

.sa-user-name {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sa-user-role {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-weight: 600;
}

.sa-back-link,
.sa-theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  flex-shrink: 0;
  transition: all 0.15s;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
}

.sa-back-link:hover,
.sa-theme-toggle:hover {
  background: var(--primary-color);
  color: white;
}

.sa-theme-toggle i {
  font-size: 18px;
}

/* Main content area */
.sa-layout .sa-main {
  max-width: none;
  margin: 0;
  padding: 24px 32px 40px;
  /* Scroll naturally with the window — no internal scroll container */
  min-height: 100vh;
}

.sa-topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 0 22px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.sa-hamburger {
  display: none;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.sa-topbar-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.sa-topbar-title i {
  color: var(--primary-color);
  font-size: 24px;
}

.sa-topbar-spacer { flex: 1; }

/* Hide the legacy horizontal tabs bar when using sidebar layout */
.sa-layout .superadmin-tabs {
  display: none !important;
}

/* Mobile: off-canvas sidebar */
.sa-sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  z-index: 99;
}

@media (max-width: 1023px) {
  /* Remove the reserved sidebar space on mobile (sidebar becomes off-canvas) */
  .superadmin-page.sa-layout {
    padding-left: 0;
  }

  .sa-sidebar {
    width: 280px;
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 200;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  }

  .sa-sidebar.open {
    transform: translateX(0);
  }

  .sa-sidebar-backdrop.open {
    display: block;
  }

  .sa-sidebar-close {
    display: inline-flex;
  }

  .sa-hamburger {
    display: inline-flex;
  }

  .sa-layout .sa-main {
    padding: 20px 18px 40px;
  }

  .sa-topbar-title {
    font-size: 18px;
  }
}

/* ======================================================================
   User Bar — minimalist single-row footer (2026-04-21)
   Sits at bottom of the sidebar. Avatar + name + plan + stats + actions
   all on one horizontal row. No expand/collapse.
   ====================================================================== */

.user-bar {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-primary);
  min-height: 48px;
}

.user-bar-avatar {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), #4f46e5);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-size: 14px;
  flex-shrink: 0;
}
.user-bar-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.user-bar-identity {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
}

.user-bar-name {
  color: var(--text-primary);
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  max-width: 100%;
}

.user-bar-stats {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.user-bar-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--bg-secondary);
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.user-bar-chip i { font-size: 12px; opacity: 0.85; }

.user-bar-chip.warning {
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.3);
  color: #d97706;
}
.user-bar-chip.warning i { color: #f59e0b; opacity: 1; }

.user-bar-chip.danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #dc2626;
}
.user-bar-chip.danger i { color: #ef4444; opacity: 1; }

.user-bar-chip-tokens {
  background: linear-gradient(135deg, rgba(250, 204, 21, 0.18), rgba(234, 179, 8, 0.12));
  border-color: rgba(234, 179, 8, 0.4);
  color: #b45309;
}
.user-bar-chip-tokens i { color: #eab308; opacity: 1; }

.user-bar-chip-unlimited {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.25);
  color: #10b981;
  padding: 4px 6px;
}
.user-bar-chip-unlimited i { color: #10b981; opacity: 1; }

.user-bar-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  margin-left: 2px;
}

.user-bar-btn {
  width: 28px;
  height: 28px;
  min-width: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  padding: 0;
}
.user-bar-btn i { font-size: 15px; }
.user-bar-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.user-bar-btn:active {
  transform: scale(0.94);
}
.user-bar-btn-danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.25);
}

.user-bar-upgrade {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  text-decoration: none;
  font-size: 14px;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.28);
  transition: all 0.15s;
}
.user-bar-upgrade:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.45);
}
.user-bar-upgrade i { font-size: 14px; }

/* Plan-badge tightening within the bar (overrides default padding only here) */
.user-bar .plan-badge {
  flex-shrink: 0;
  padding: 2px 6px;
  font-size: 9px;
  line-height: 1;
  letter-spacing: 0.4px;
}

/* Mobile: compress further but stay in one row. Drop the name below ~320px
   by hiding it — the avatar already identifies the user, stats+actions are
   the primary value. */
@media (max-width: 480px) {
  .user-bar { padding: 6px 8px; gap: 4px; }
  .user-bar-chip { padding: 3px 6px; font-size: 10.5px; }
  .user-bar-chip i { font-size: 11px; }
  .user-bar-btn, .user-bar-upgrade { width: 26px; height: 26px; min-width: 26px; }
  .user-bar-btn i, .user-bar-upgrade i { font-size: 13px; }
}

@media (max-width: 360px) {
  .user-bar-name { display: none; }
  .user-bar .plan-badge { font-size: 8.5px; padding: 2px 5px; }
}

/* ======================================================================
   Kebab menu — row actions dropdown (2026-04-22)
   Replaces the horizontal strip of icon buttons in table rows with a
   single three-dots trigger that opens a floating menu on click.
   ====================================================================== */

.kebab-wrapper {
  position: relative;
  display: inline-flex;
  justify-content: flex-end;
}

.kebab-trigger {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.15s;
}
.kebab-trigger i { font-size: 18px; line-height: 1; }

.kebab-trigger:hover,
.kebab-wrapper.open .kebab-trigger {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

/* Menu escapes the table container via position:fixed + JS coordinates */
.kebab-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18), 0 2px 6px rgba(0, 0, 0, 0.08);
  padding: 4px;
  z-index: 9999;
  animation: kebabFadeIn 0.12s ease-out;
}

@keyframes kebabFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.kebab-wrapper.open .kebab-menu {
  display: block;
}

.kebab-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}

.kebab-item i {
  font-size: 16px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: color 0.12s;
}

.kebab-item:hover {
  background: var(--bg-hover);
}
.kebab-item:hover i { color: var(--primary-color); }

.kebab-item-danger {
  color: #dc2626;
}
.kebab-item-danger i { color: #ef4444; }
.kebab-item-danger:hover {
  background: rgba(239, 68, 68, 0.08);
  color: #b91c1c;
}
.kebab-item-danger:hover i { color: #dc2626; }

.kebab-divider {
  height: 1px;
  background: var(--border-light);
  margin: 4px 6px;
}

/* ======================================================================
   Model fallback pill (2026-04-23)
   Appears at the top of an assistant message when the primary model
   failed upstream and the server retried with a different one.
   ====================================================================== */
.model-fallback-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  margin: 0 0 10px 0;
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.28);
  border-radius: 8px;
  color: #d97706;
  font-size: 11.5px;
  line-height: 1.4;
  font-weight: 500;
}
.model-fallback-pill i {
  font-size: 14px;
  color: #f59e0b;
  flex-shrink: 0;
}
.model-fallback-pill strong {
  font-weight: 700;
  color: #b45309;
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 10.5px;
  background: rgba(251, 191, 36, 0.12);
  padding: 1px 6px;
  border-radius: 4px;
}

.appearance-info {
  flex: 1;
}
.appearance-info strong {
  display: inline-block;
  font-size: 14px;
  color: var(--text-primary, #1f2937);
}
.appearance-info p {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text-muted, #6b7280);
  line-height: 1.5;
}
.appearance-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
  border-radius: 10px;
  margin-left: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.appearance-status {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-muted, #6b7280);
}
.appearance-status.appearance-ok { color: #16a34a; }
.appearance-status.appearance-warn { color: #dc2626; }
.appearance-status a { color: inherit; text-decoration: underline;
}

/* ======================================================================
   SIDEBAR — Collapse toggle + collapsed rail + hover flyout (Pattern A)
   ====================================================================== */

/* Right-edge collapse toggle. Lives on the sidebar but visually pokes out
   onto the chat area. Visible on hover-of-sidebar by default; always
   visible while sidebar is collapsed so the user can re-expand. */
.sidebar-collapse-toggle {
  position: absolute;
  top: 18px;
  right: -12px;
  z-index: 12;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border-color, var(--border-light));
  background: var(--bg-secondary, #1f2937);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease, transform 0.2s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}
.sidebar-collapse-toggle i { font-size: 13px; line-height: 1; }
.sidebar:hover .sidebar-collapse-toggle,
.sidebar.is-collapsed .sidebar-collapse-toggle,
.sidebar-collapse-toggle:focus-visible {
  opacity: 1;
}
.sidebar-collapse-toggle:hover {
  background: var(--bg-hover, #374151);
  color: var(--text-primary);
  transform: scale(1.08);
}
/* Mobile: this is a desktop-only feature — hide the button entirely. */
@media (max-width: 768px) {
  .sidebar-collapse-toggle { display: none !important; }
}

/* ── Collapsed rail (~64px) ─────────────────────────────────────────── */
@media (min-width: 769px) {
  .sidebar.is-collapsed {
    width: 64px !important;
    transition: width 0.2s ease;
  }
  .sidebar { transition: width 0.2s ease; }

  /* Header: shrink padding, drop the wordmark, stack vertical */
  .sidebar.is-collapsed .sidebar-header {
    padding: 0.75rem 0.5rem;
    flex-direction: column;
    gap: 0.5rem;
  }
  .sidebar.is-collapsed .sidebar-header .logo-text { display: none; }
  .sidebar.is-collapsed .sidebar-header .logo-icon {
    width: 32px; height: 32px;
  }
  /* Theme toggle in collapsed mode: shrink, drop the button-y background,
     and push it slightly down so it doesn't visually compete with the
     infinity logo or the chunky + new-chat button below. */
  .sidebar.is-collapsed .sidebar-header .desktop-theme-toggle {
    position: static;
    margin-top: 12px;
    padding: 4px;
    border-radius: 6px;
    background: transparent;
    opacity: 0.65;
    transition: opacity 0.15s ease, background 0.15s ease;
  }
  .sidebar.is-collapsed .sidebar-header .desktop-theme-toggle:hover {
    opacity: 1;
    background: var(--bg-hover);
  }
  .sidebar.is-collapsed .sidebar-header .desktop-theme-toggle .theme-icon {
    font-size: 14px;
  }

  /* Actions row: hide search, shrink + button */
  .sidebar.is-collapsed .sidebar-actions {
    padding: 0.5rem;
    flex-direction: column;
  }
  .sidebar.is-collapsed .search-container { display: none; }
  .sidebar.is-collapsed .new-chat-btn {
    width: 2.25rem;
    height: 2.25rem;
    min-width: 2.25rem;
  }

  /* Conversation groups become square tiles (3-char abbr + count badge).
     The actual conversation items (.conversation-group-items) are
     hidden — they get shown via the JS flyout on hover. */
  .sidebar.is-collapsed .conversations-list {
    padding: 0.35rem;
    overflow: visible;
  }
  .sidebar.is-collapsed .conversation-group {
    margin-bottom: 0.35rem;
  }
  .sidebar.is-collapsed .conversation-group-header {
    position: static; /* drop sticky so all tiles stack normally */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1px;
    padding: 6px 4px;
    border-radius: 8px;
    background: var(--bg-secondary, transparent);
    height: 48px;
    transition: background 0.15s ease, color 0.15s ease;
  }
  .sidebar.is-collapsed .conversation-group-header:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
  }
  /* Active-group highlight: when the currently-open chat lives in this
     section, mark its chip with a blue accent so the user knows where
     they are without expanding the sidebar. Uses :has() (modern browsers). */
  .sidebar.is-collapsed .conversation-group:has(.conversation-item.active) .conversation-group-header {
    border: 1px solid var(--primary-color);
    background: color-mix(in srgb, var(--primary-color) 15%, transparent);
    color: var(--primary-color);
  }
  .sidebar.is-collapsed .conversation-group:has(.conversation-item.active) .conversation-group-header::before {
    color: var(--primary-color);
  }
  .sidebar.is-collapsed .conversation-group:has(.conversation-item.active) .group-count {
    background: color-mix(in srgb, var(--primary-color) 25%, transparent);
    color: var(--primary-color);
  }
  /* Hide the original chevron arrow + text label */
  .sidebar.is-collapsed .conversation-group-header > i.group-arrow,
  .sidebar.is-collapsed .conversation-group-header > span:not(.group-count) {
    display: none;
  }
  /* Show the short label via data-attribute */
  .sidebar.is-collapsed .conversation-group-header::before {
    content: attr(data-short-label);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
  }
  .sidebar.is-collapsed .conversation-group-header .group-count {
    margin: 0;
    font-size: 10px;
    padding: 1px 6px;
    line-height: 1.2;
  }
  /* Pinned group: icon stays but smaller (the only chip with a real icon) */
  .sidebar.is-collapsed .pinned-group .conversation-group-header > i.ph-push-pin {
    display: inline-block;
    font-size: 14px;
  }
  .sidebar.is-collapsed .pinned-group .conversation-group-header::before {
    display: none;
  }
  /* Hide conversation items in rail — they appear in the flyout */
  .sidebar.is-collapsed .conversation-group-items { display: none !important; }

  /* Modules section in rail: just icon + count */
  .sidebar.is-collapsed .modules-section { padding: 0.35rem; }
  .sidebar.is-collapsed .modules-header {
    flex-direction: column;
    gap: 2px;
    padding: 6px 4px;
    height: 48px;
    justify-content: center;
  }
  .sidebar.is-collapsed .modules-title { font-size: 0; gap: 2px; flex-direction: column; }
  .sidebar.is-collapsed .modules-title i.ph-puzzle-piece {
    font-size: 16px;
  }
  .sidebar.is-collapsed .modules-count { font-size: 10px; padding: 1px 5px; }
  .sidebar.is-collapsed .modules-toggle-icon { display: none; }
  .sidebar.is-collapsed .modules-list { display: none !important; }

  /* Projects section in rail: folders icon + count chip (tree shows in flyout) */
  .sidebar.is-collapsed .projects-section {
    padding: 0.35rem;
    max-height: none;
  }
  .sidebar.is-collapsed .projects-section-header {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1px;
    padding: 6px 4px;
    height: 48px;
    border-radius: 8px;
    background: var(--bg-secondary, transparent);
    transition: background 0.15s ease, color 0.15s ease;
  }
  .sidebar.is-collapsed .projects-section-header:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
  }
  .sidebar.is-collapsed .projects-section-header .projects-caret,
  .sidebar.is-collapsed .projects-section-header > span:not(.projects-count),
  .sidebar.is-collapsed .projects-add-btn { display: none; }
  .sidebar.is-collapsed .projects-section-header i.ph-folders { font-size: 16px; }
  .sidebar.is-collapsed .projects-count { font-size: 10px; padding: 1px 5px; }
  .sidebar.is-collapsed .projects-list { display: none !important; }
  /* Active chat lives inside a project → highlight the chip */
  .sidebar.is-collapsed .projects-section:has(.conversation-item.active) .projects-section-header {
    border: 1px solid var(--primary-color);
    background: color-mix(in srgb, var(--primary-color) 15%, transparent);
    color: var(--primary-color);
  }

  /* User bar: avatar + actions stacked, identity & stats hidden */
  .sidebar.is-collapsed .user-bar {
    flex-direction: column;
    padding: 8px 6px;
    gap: 6px;
    min-height: 0;
  }
  .sidebar.is-collapsed .user-bar-identity,
  .sidebar.is-collapsed .user-bar-stats { display: none; }
  .sidebar.is-collapsed .user-bar-actions {
    flex-direction: column;
    gap: 4px;
    margin: 0;
  }
}

/* ── Flyout panel (overlay anchored to the right of the rail) ─────── */
.sidebar-flyout {
  position: fixed;
  z-index: 999;
  width: 320px;
  max-width: calc(100vw - 80px);
  background: var(--bg-secondary, #1f2937);
  border: 1px solid var(--border-color, var(--border-light));
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  display: none;
  flex-direction: column;
  /* NOTE: no `transform` and no `overflow: hidden` on this outer container.
     Both create a stacking/containing block that clips child `position:fixed`
     elements (the kebab dropdowns) — making them invisible. Scrolling is
     handled by .sidebar-flyout-items below. */
  transition: opacity 0.14s ease;
}
.sidebar-flyout.is-open {
  display: flex;
  opacity: 1;
  pointer-events: auto;
}
.sidebar-flyout.is-immediate { transition: none; }
.sidebar-flyout.is-pinned {
  border-color: var(--primary-color, #6366f1);
}
.sidebar-flyout-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-primary, transparent);
}
/* "Nuevo proyecto" action inside the projects flyout header */
.sidebar-flyout-add {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s ease, color 0.15s ease;
}
.sidebar-flyout-add:hover {
  background: var(--bg-hover);
  color: var(--primary-color);
}
.sidebar-flyout-add.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.sidebar-flyout-add i { font-size: 14px; }
.sidebar-flyout-items {
  overflow-y: auto;
  flex: 1;
  padding: 6px;
}
/* Reset .conversation-group-items max-height inside flyout: the rule
   `.conversation-group.collapsed .conversation-group-items{max-height:0}`
   was scoped to the original parent. Inside the flyout, our items live
   outside that parent, so they expand naturally — but we still want a
   sane scroll inside the panel. */
.sidebar-flyout .conversation-group-items {
  max-height: none !important;
  overflow: visible;
}
.sidebar-flyout .modules-list {
  max-height: none !important;
  opacity: 1 !important;
  padding: 4px;
}
.sidebar-flyout .projects-list {
  display: block !important;
  max-height: none !important;
  overflow: visible;
  padding: 4px;
}

/* "Cargar más" pagination button — sits inside .conversation-group-items
   below the visible slice. Discreet, matches the sidebar's tone. */
.load-more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  margin-top: 4px;
  padding: 6px 8px;
  background: transparent;
  border: 1px dashed var(--border-light);
  border-radius: 6px;
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.load-more-btn:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-color: var(--border-color, var(--border-light));
  border-style: solid;
}
.load-more-btn i { font-size: 12px; }
.load-more-btn .load-more-count { font-weight: 700; color: var(--text-secondary); }
/* Hide load-more in collapsed rail (items hidden anyway) — but show
   normally inside the flyout. */
.sidebar.is-collapsed .conversation-group-items .load-more-btn { display: none; }
.sidebar-flyout .load-more-btn { display: flex !important; }