/* Admin — 1MinuteBrain Dashboard Styles */
/* Theme variables are injected from App/config/theme.json at build time */

/* Ensure [hidden] always works, even when CSS sets display */
[hidden] { display: none !important; }

/* ============================================================
   Design Tokens (see root CLAUDE.md UI/UX Standards)
   ============================================================ */

:root {
  /* Colors */
  --color-primary: #6C5CE7;
  --color-primary-light: #A29BFE;
  --color-primary-dark: #5A4BD1;
  --color-secondary: #00CEC9;
  --color-accent: #FD79A8;
  --color-background: #FAFAFA;
  --color-surface: #FFFFFF;
  --color-text: #2D3436;
  --color-text-light: #636E72;
  --color-success: #00B894;
  --color-warning: #FDCB6E;
  --color-danger: #E17055;
  --color-border: #DFE6E9;

  /* Typography */
  --font-family: 'Poppins', sans-serif;
  --font-size-h1: 2rem;
  --font-size-h2: 1.5rem;
  --font-size-h3: 1.25rem;
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
  --font-size-caption: 0.75rem;

  /* Spacing (8px grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Layout */
  --sidebar-width: 240px;
  --sidebar-collapsed: 56px;
  --max-content-width: 1200px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

/* ============================================================
   Base / Reset
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   Accessibility
   ============================================================ */

.skip-link {
  position: absolute; top: -100%; left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary); color: #fff;
  border-radius: var(--border-radius); z-index: 1000;
  font-size: var(--font-size-small); text-decoration: none;
}
.skip-link:focus { top: var(--space-2); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   Typography
   ============================================================ */

h1 { font-size: var(--font-size-h1); font-weight: 700; line-height: 1.25; }
h2 { font-size: var(--font-size-h2); font-weight: 600; line-height: 1.3; }
h3 { font-size: var(--font-size-h3); font-weight: 600; line-height: 1.4; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   App Layout (sidebar + main)
   ============================================================ */

.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ============================================================
   Sidebar
   ============================================================ */

.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex; flex-direction: column;
  z-index: 100;
  transition: transform var(--transition-normal);
}

.sidebar-logo {
  display: block;
  padding: var(--space-5) var(--space-4);
  font-size: var(--font-size-h3); font-weight: 700;
  color: var(--color-text); text-decoration: none;
  border-bottom: 1px solid var(--color-border);
}

.sidebar nav { flex: 1; padding: var(--space-2) 0; }

.nav-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-light); text-decoration: none;
  font-size: var(--font-size-small); font-weight: 500;
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
}
.nav-item:hover { color: var(--color-text); background: rgba(108, 92, 231, 0.04); }
.nav-item.active {
  color: var(--color-primary);
  background: rgba(108, 92, 231, 0.08);
  border-left-color: var(--color-primary);
}

.nav-logout {
  border-top: 1px solid var(--color-border);
  margin-top: auto;
  background: none; border-left: 3px solid transparent;
  cursor: pointer; width: 100%; text-align: left;
  font-family: var(--font-family);
}

/* ============================================================
   Main Content Area
   ============================================================ */

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
}

.page-header {
  position: sticky; top: 0;
  padding: var(--space-4) var(--space-5);
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; gap: var(--space-3);
  z-index: 50;
}

.hamburger-btn {
  display: none; /* shown on mobile via media query */
  background: none; border: none; cursor: pointer;
  padding: var(--space-2); color: var(--color-text);
  min-width: 44px; min-height: 44px;
}

/* ============================================================
   Sidebar Backdrop (mobile overlay)
   ============================================================ */

.sidebar-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 90;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-family); font-size: var(--font-size-small); font-weight: 500;
  border: none; border-radius: var(--border-radius); cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none; line-height: 1;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); }
.btn-secondary { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover:not(:disabled) { opacity: 0.9; }
.btn-ghost { background: transparent; color: var(--color-text-light); border: none; }
.btn-ghost:hover:not(:disabled) { color: var(--color-text); }
.btn-danger-text { color: var(--color-danger); }
.btn-sm { padding: var(--space-2) var(--space-3); font-size: var(--font-size-caption); }
.btn-full { width: 100%; }
.btn-icon { padding: var(--space-2); min-width: 44px; min-height: 44px; }

.btn-spinner {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   Forms
   ============================================================ */

.form-group { margin-bottom: var(--space-5); }
.form-label { display: block; margin-bottom: var(--space-1); font-size: var(--font-size-small); font-weight: 500; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: var(--space-3);
  font-family: var(--font-family); font-size: var(--font-size-body);
  border: 1px solid var(--color-border); border-radius: var(--border-radius);
  background: var(--color-surface); color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
  outline: none;
}
.form-input.is-error, .form-textarea.is-error { border-color: var(--color-danger); }
.form-error { color: var(--color-danger); font-size: var(--font-size-caption); margin-top: var(--space-1); }
.form-textarea-mono { font-family: 'Courier New', Courier, monospace; font-size: var(--font-size-small); }
.textarea-footer { display: flex; justify-content: flex-end; margin-top: var(--space-1); }
.char-counter { font-size: var(--font-size-caption); color: var(--color-text-light); }
.char-counter.is-warning { color: var(--color-warning); }
.char-counter.is-danger { color: var(--color-danger); }

.input-password-wrap { position: relative; }
.password-toggle {
  position: absolute; right: var(--space-3); top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--color-text-light);
  padding: var(--space-1); min-width: 44px; min-height: 44px;
  display: flex; align-items: center; justify-content: center;
}

/* ============================================================
   Cards
   ============================================================ */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-4); }

/* ============================================================
   Stats Grid (dashboard)
   ============================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-5);
}

/* ============================================================
   Tables
   ============================================================ */

.table-container { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table thead th {
  text-align: left; padding: var(--space-3) var(--space-4);
  font-weight: 600; font-size: var(--font-size-caption);
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--color-text-light);
  border-bottom: 2px solid var(--color-border);
  white-space: nowrap;
}
.data-table tbody td {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-small);
  border-bottom: 1px solid var(--color-border);
}
.data-table tbody tr:nth-child(even) { background: var(--color-background); }
.data-table tbody tr:hover { background: rgba(108, 92, 231, 0.04); }
.data-table .sortable { cursor: pointer; user-select: none; }
.data-table .sortable:hover { color: var(--color-primary); }

/* ============================================================
   Badges
   ============================================================ */

.badge {
  display: inline-flex; align-items: center;
  padding: 2px 10px;
  border-radius: 9999px;
  font-size: var(--font-size-caption); font-weight: 500;
}
.badge-success { background: rgba(0, 184, 148, 0.15); color: var(--color-success); }
.badge-warning { background: rgba(253, 203, 110, 0.25); color: #b8860b; }
.badge-danger { background: rgba(225, 112, 85, 0.15); color: var(--color-danger); }
.badge-neutral { background: var(--color-border); color: var(--color-text-light); }

/* ============================================================
   Pagination
   ============================================================ */

.pagination {
  display: flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-small);
}

/* ============================================================
   Alerts
   ============================================================ */

.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--border-radius);
  font-size: var(--font-size-small);
  display: flex; align-items: center; gap: var(--space-3);
}
.alert-info { background: rgba(108, 92, 231, 0.08); color: var(--color-primary); }
.alert-warning { background: rgba(253, 203, 110, 0.2); color: #b8860b; }
.alert-dismiss { background: none; border: none; cursor: pointer; margin-left: auto; font-size: 1.2em; }

/* ============================================================
   Table Filters
   ============================================================ */

.table-filters {
  display: flex; align-items: flex-end; gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  flex-wrap: wrap;
}
.filter-group { display: flex; flex-direction: column; gap: var(--space-1); }
.search-input-wrap { position: relative; }
.search-clear {
  position: absolute; right: var(--space-3); top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; color: var(--color-text-light);
  font-size: 1.2em;
}

/* ============================================================
   Upload Zone
   ============================================================ */

.upload-zone { margin: var(--space-4) var(--space-5); }
.upload-zone-inner {
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-7) var(--space-5);
  text-align: center;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
}
.upload-zone-inner:hover, .upload-zone-inner.drag-over {
  border-color: var(--color-primary);
  background: rgba(108, 92, 231, 0.04);
}
.upload-text { font-weight: 500; margin-bottom: var(--space-1); }
.upload-subtext { color: var(--color-text-light); font-size: var(--font-size-small); }
.upload-limit { color: var(--color-text-light); font-size: var(--font-size-caption); margin-top: var(--space-2); }

.progress-bar {
  width: 100%; height: 8px;
  background: var(--color-border); border-radius: 4px;
  overflow: hidden; margin: var(--space-2) 0;
}
.progress-fill {
  height: 100%; background: var(--color-primary);
  border-radius: 4px; transition: width var(--transition-fast);
  width: 0%;
}

/* ============================================================
   Prompt Layout
   ============================================================ */

.prompt-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  padding: var(--space-5);
}
.editor-header, .preview-header { margin-bottom: var(--space-4); display: flex; align-items: center; gap: var(--space-3); }
.preview-subtitle { color: var(--color-text-light); font-size: var(--font-size-small); }
.preview-content {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-4);
  font-size: var(--font-size-small);
  white-space: pre-wrap;
  max-height: 60vh; overflow-y: auto;
}
.editor-actions { display: flex; gap: var(--space-3); margin-top: var(--space-4); }

/* ============================================================
   Confirmation Dialogs
   ============================================================ */

.confirm-dialog {
  border: none; border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  max-width: 420px; width: 90%;
}
.confirm-dialog::backdrop { background: rgba(0, 0, 0, 0.4); backdrop-filter: blur(2px); }
.confirm-dialog h2 { margin-bottom: var(--space-3); font-size: var(--font-size-h3); }
.confirm-dialog p { margin-bottom: var(--space-5); color: var(--color-text-light); font-size: var(--font-size-small); }
.dialog-actions { display: flex; gap: var(--space-3); justify-content: flex-end; }

/* ============================================================
   Chat Transcript (admin read-only view)
   ============================================================ */

.chat-transcript { padding: var(--space-4); }
.conversation-summary {
  display: flex; gap: var(--space-5);
  padding: var(--space-3) var(--space-4);
  background: var(--color-background);
  border-radius: var(--border-radius);
  font-size: var(--font-size-small); color: var(--color-text-light);
  margin-bottom: var(--space-4);
}
.detail-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.detail-meta { display: flex; gap: var(--space-4); font-size: var(--font-size-small); color: var(--color-text-light); }

/* ============================================================
   Login Layout
   ============================================================ */

.login-layout {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: var(--space-5);
}
.login-card {
  width: 100%; max-width: 400px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}
.login-logo {
  text-align: center; font-size: var(--font-size-h2); font-weight: 700;
  margin-bottom: var(--space-2);
}
.login-title {
  text-align: center; font-size: var(--font-size-h3); font-weight: 500;
  color: var(--color-text-light); margin-bottom: var(--space-5);
}

/* ============================================================
   Toast Notifications
   ============================================================ */

.toast-container {
  position: fixed; top: var(--space-4); right: var(--space-4);
  z-index: 1100; display: flex; flex-direction: column; gap: var(--space-2);
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface); border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  font-size: var(--font-size-small);
  display: flex; align-items: center; gap: var(--space-3);
  animation: toast-in var(--transition-normal) ease;
  border-left: 4px solid var(--color-border);
}
.toast-success { border-left-color: var(--color-success); }
.toast-error { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
.toast-dismiss { background: none; border: none; cursor: pointer; color: var(--color-text-light); }

@keyframes toast-in { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }

/* ============================================================
   Skeleton Loading
   ============================================================ */

.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-background) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--border-radius);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1023px) {
  .sidebar { width: var(--sidebar-collapsed); }
  .sidebar .nav-label { display: none; }
  .sidebar-logo { font-size: 0; padding: var(--space-3); }
  .main-content { margin-left: var(--sidebar-collapsed); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .prompt-layout { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .sidebar { transform: translateX(-100%); width: var(--sidebar-width); }
  .sidebar.is-open { transform: translateX(0); }
  .sidebar .nav-label { display: inline; }
  .sidebar-logo { font-size: var(--font-size-h3); padding: var(--space-5) var(--space-4); }
  .main-content { margin-left: 0; }
  .hamburger-btn { display: flex; }
  .stats-grid { grid-template-columns: 1fr; padding: var(--space-4); }
  .table-filters { flex-direction: column; }
  .dashboard-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Nav Icons in sidebar
   ============================================================ */

.nav-icon {
  display: flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; flex-shrink: 0;
}

/* ============================================================
   Stats Cards (dashboard)
   ============================================================ */

.stats-grid {
  grid-template-columns: repeat(5, 1fr);
}

.stat-card { text-align: center; padding: var(--space-4); }
.stat-label { font-size: var(--font-size-caption); color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; margin-bottom: var(--space-1); }
.stat-value { font-size: var(--font-size-h1); font-weight: 700; line-height: 1.2; }
.stat-sub { font-size: var(--font-size-caption); color: var(--color-text-light); margin-top: var(--space-1); }
.stat-pct { color: var(--color-success); }
.text-warning { color: #b8860b !important; }
.text-danger { color: var(--color-danger) !important; }
.text-light { color: var(--color-text-light); }
.text-link { color: var(--color-primary); text-decoration: none; cursor: pointer; }
.text-link:hover { text-decoration: underline; }

@media (max-width: 1023px) {
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 767px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); padding: var(--space-4); }
}

/* ============================================================
   Dashboard Grid
   ============================================================ */

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  padding: 0 var(--space-5) var(--space-4);
}

/* ============================================================
   Limits / Progress Bars
   ============================================================ */

.limits-card h2 { margin-bottom: var(--space-2); }
.limits-note { font-size: var(--font-size-caption); color: var(--color-text-light); margin-bottom: var(--space-4); }
.limit-row { margin-bottom: var(--space-3); }
.limit-info { display: flex; justify-content: space-between; margin-bottom: var(--space-1); }
.limit-label { font-size: var(--font-size-small); font-weight: 500; display: flex; align-items: center; gap: var(--space-2); }
.limit-badge { font-size: 0.625rem; font-weight: 400; padding: 1px 6px; }
.limit-value { font-size: var(--font-size-caption); color: var(--color-text-light); }
.progress-ok { background: var(--color-success); }
.progress-warning { background: var(--color-warning); }
.progress-danger { background: var(--color-danger); }

/* ============================================================
   Bar Chart (CSS only)
   ============================================================ */

.bar-chart {
  display: flex; align-items: flex-end; gap: var(--space-2);
  height: 120px; padding: var(--space-2) 0;
}
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; }
.bar { width: 100%; background: var(--color-primary); border-radius: 4px 4px 0 0; min-height: 4px; transition: height 0.3s ease; }
.bar-value { font-size: var(--font-size-caption); font-weight: 600; margin-bottom: var(--space-1); }
.bar-label { font-size: 0.65rem; color: var(--color-text-light); margin-top: var(--space-1); text-transform: uppercase; }

/* ============================================================
   Topic List
   ============================================================ */

.topic-list { list-style: none; }
.topic-item { display: flex; justify-content: space-between; align-items: center; padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); font-size: var(--font-size-small); }
.topic-item:last-child { border-bottom: none; }

/* ============================================================
   Activity Feed
   ============================================================ */

.recent-card { margin: 0 var(--space-5) var(--space-5); }
.activity-list { }
.activity-row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); font-size: var(--font-size-small); }
.activity-row:last-child { border-bottom: none; }
.activity-time { color: var(--color-text-light); min-width: 80px; font-size: var(--font-size-caption); }
.activity-detail { flex: 1; }
.activity-ip { color: var(--color-text-light); font-size: var(--font-size-caption); font-family: monospace; }

/* ============================================================
   Cost Estimation Card
   ============================================================ */

.cost-card { margin: 0 var(--space-5) var(--space-4); }
.cost-card h2 { margin-bottom: var(--space-2); }
.cost-section-title { font-size: var(--font-size-body); font-weight: 600; margin-bottom: var(--space-3); margin-top: var(--space-4); }
.cost-section-title:first-of-type { margin-top: 0; }

.cost-info-tip {
  font-size: var(--font-size-caption);
  color: var(--color-text-light);
  font-weight: 400;
}

.cost-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-small);
  margin-bottom: var(--space-3);
}
.cost-table th {
  font-weight: 600;
  font-size: var(--font-size-caption);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 2px solid var(--color-border);
}
.cost-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.cost-table .text-right { text-align: right; }
.cost-table .cost-total-row { font-weight: 600; border-top: 2px solid var(--color-border); }
.cost-table .cost-overage-row { color: var(--color-danger); font-weight: 500; }

.cost-projection {
  background: var(--color-background);
  border-radius: 8px;
  padding: var(--space-4);
  margin-top: var(--space-4);
}
.cost-projection-title {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  margin-bottom: var(--space-3);
}
.cost-projection-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-small);
  margin-bottom: var(--space-2);
}

.cost-share-bar {
  display: flex;
  height: 12px;
  border-radius: 6px;
  overflow: hidden;
  margin: var(--space-3) 0;
}
.cost-share-segment { transition: width 150ms ease; min-width: 2px; }
.cost-share-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--font-size-caption);
  color: var(--color-text-light);
}
.cost-share-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: var(--space-1);
  vertical-align: middle;
}

.cost-other-toggle {
  font-size: var(--font-size-caption);
  color: var(--color-primary);
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-2) 0;
  margin-top: var(--space-3);
  font-family: inherit;
}
.cost-other-toggle:hover { text-decoration: underline; }
.cost-other-details { margin-top: var(--space-2); }

.cost-alert {
  padding: var(--space-3) var(--space-4);
  border-radius: 8px;
  font-size: var(--font-size-small);
  margin-top: var(--space-3);
  line-height: 1.5;
}
.cost-alert strong { display: block; margin-bottom: var(--space-1); }
.cost-alert-ok { background: rgba(0, 184, 148, 0.1); color: #00856a; }
.cost-alert-warning { background: rgba(253, 203, 110, 0.15); color: #8a6d00; }
.cost-alert-danger { background: rgba(225, 112, 85, 0.1); color: #c0392b; }

.limits-reset-local {
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================================
   Empty State
   ============================================================ */

.empty-state { text-align: center; padding: var(--space-7) var(--space-5); }
.empty-state-icon { margin-bottom: var(--space-3); }
.empty-state-title { font-size: var(--font-size-h3); font-weight: 600; margin-bottom: var(--space-2); }
.empty-state-desc { color: var(--color-text-light); font-size: var(--font-size-small); }

/* ============================================================
   Clickable table rows
   ============================================================ */

.clickable-row { cursor: pointer; }
.clickable-row:hover { background: rgba(108, 92, 231, 0.06) !important; }

/* ============================================================
   Chat Transcript (conversation detail)
   ============================================================ */

.chat-transcript { padding: var(--space-4); max-width: 800px; }
.chat-message { display: flex; margin-bottom: var(--space-3); }
.chat-user { justify-content: flex-end; }
.chat-bot { justify-content: flex-start; }
.chat-bubble { max-width: 75%; padding: var(--space-3) var(--space-4); border-radius: var(--border-radius-lg); font-size: var(--font-size-small); line-height: 1.5; }
.chat-user .chat-bubble { background: var(--color-primary); color: #fff; border-bottom-right-radius: 4px; }
.chat-bot .chat-bubble { background: var(--color-surface); border: 1px solid var(--color-border); border-bottom-left-radius: 4px; }
.chat-meta { display: flex; gap: var(--space-3); margin-top: var(--space-1); font-size: var(--font-size-caption); opacity: 0.7; }
.chat-user .chat-meta { justify-content: flex-end; }
.chat-content { white-space: pre-wrap; word-break: break-word; }

/* ============================================================
   Brain Tabs
   ============================================================ */

.brain-tabs {
  display: flex; gap: 0; border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-4); margin-top: var(--space-3);
}
.tab-btn {
  padding: var(--space-3) var(--space-4);
  background: none; border: none; border-bottom: 2px solid transparent;
  margin-bottom: -2px; cursor: pointer;
  font-family: var(--font-family); font-size: var(--font-size-small); font-weight: 500;
  color: var(--color-text-light); transition: all var(--transition-fast);
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tab-content { padding: var(--space-4) 0; }

/* ============================================================
   Settings Sections
   ============================================================ */

.settings-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  margin: var(--space-4) var(--space-5);
  overflow: hidden;
}
.settings-section-title {
  padding: var(--space-4);
  cursor: pointer; user-select: none;
  display: flex; align-items: center; justify-content: space-between;
  font-size: var(--font-size-h3); font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}
.settings-section-title:hover { background: rgba(108, 92, 231, 0.03); }
.settings-section-title.collapsed { border-bottom: none; }
.settings-section-body { padding: var(--space-4); }
.settings-divider { border: none; border-top: 1px solid var(--color-border); margin: var(--space-5) 0; }

/* ============================================================
   Toggle Switch
   ============================================================ */

.toggle-label {
  display: inline-flex; align-items: center; gap: var(--space-3); cursor: pointer;
}
.toggle-input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-switch {
  position: relative; width: 44px; height: 24px;
  background: var(--color-border); border-radius: 12px;
  transition: background var(--transition-fast);
}
.toggle-switch::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 20px; height: 20px; background: #fff;
  border-radius: 50%; transition: transform var(--transition-fast);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle-input:checked + .toggle-switch { background: var(--color-primary); }
.toggle-input:checked + .toggle-switch::after { transform: translateX(20px); }
.toggle-input:focus-visible + .toggle-switch { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ============================================================
   Input with suffix
   ============================================================ */

.input-with-suffix {
  display: flex; align-items: center; gap: var(--space-2);
}
.input-with-suffix .form-input { max-width: 120px; }
.input-suffix { font-size: var(--font-size-small); color: var(--color-text-light); }

/* ============================================================
   Form hints and checkbox labels
   ============================================================ */

.form-hint { font-size: var(--font-size-caption); color: var(--color-text-light); margin-top: var(--space-1); }
.checkbox-label {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--font-size-small); cursor: pointer; padding: var(--space-1) 0;
}

/* ============================================================
   User Profile Grid
   ============================================================ */

.user-profile-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-3); font-size: var(--font-size-small);
}

/* ============================================================
   Upload progress
   ============================================================ */

.upload-progress {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) 0;
}
.upload-filename { font-size: var(--font-size-small); font-weight: 500; min-width: 100px; }

/* ============================================================
   Preview content
   ============================================================ */

.preview-muted { color: var(--color-text-light); font-style: italic; }

/* ============================================================
   Audit details expandable
   ============================================================ */

.expandable-row { cursor: pointer; }
.audit-details-cell { max-width: 300px; }
.audit-details-short { font-family: monospace; font-size: var(--font-size-caption); color: var(--color-text-light); }
.audit-details-full { font-family: monospace; font-size: var(--font-size-caption); white-space: pre-wrap; margin: var(--space-2) 0; background: var(--color-background); padding: var(--space-2); border-radius: var(--border-radius); }

/* ============================================================
   Pagination extras
   ============================================================ */

.pagination-info { font-size: var(--font-size-caption); color: var(--color-text-light); margin-right: var(--space-3); }
.pagination-dots { padding: 0 var(--space-1); color: var(--color-text-light); }

/* ============================================================
   Token Display
   ============================================================ */

.token-display {
  display: flex; align-items: center; gap: var(--space-2);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-3);
  margin: var(--space-3) 0;
}
.token-value {
  flex: 1; font-size: var(--font-size-small);
  word-break: break-all; user-select: all;
  background: none; padding: 0;
}
.data-table-compact { font-size: var(--font-size-small); }
.data-table-compact th, .data-table-compact td { padding: var(--space-2) var(--space-3); }
.btn-danger-text { color: var(--color-danger); }
.btn-danger-text:hover { color: #c0392b; }