/* ═══════════════════════════════════════════════════════════
   LMSAdvisor — Admin + Auth Stylesheet  (2026 refresh)
   Soft-depth "glass" design system — light & dark themes.

   NOTES FOR DEVS
   • Class hooks are unchanged (adm-*, topbar-*, stat-*, lms-*…)
     — only the visual layer was rebuilt.
   • ThemeService (Admin → Appearance) still overrides the same
     variables: --primary, --primary-rgb, --primary-dark,
     --primary-light, --content-bg, --card-bg, --text-primary,
     --text-muted, --font. Do NOT rename them.
   • Dark mode = [data-theme="dark"] AND [data-bs-theme="dark"]
     on <html> (both are toggled together — see admin.js).
   ═══════════════════════════════════════════════════════════ */

/* ── Design tokens — LIGHT ─────────────────────────────────── */
:root {
  --primary:        #2373EF;
  --primary-rgb:    35,115,239;
  --primary-dark:   #1b5fd6;
  --primary-light:  #EEF4FE;
  --success:        #0e9f6e;
  --warning:        #e3a008;
  --danger:         #e02424;

  /* Sidebar — deep "ink" gradient in both themes */
  --sidebar-bg:       linear-gradient(180deg, #0d1329 0%, #0f172a 45%, #111b36 100%);
  --sidebar-border:   rgba(255,255,255,.06);
  --sidebar-hover:    rgba(255,255,255,.07);
  --sidebar-active:   rgba(var(--primary-rgb),.18);
  --sidebar-width:    240px;

  --topbar-h:        60px;
  /* Frosted-glass topbar */
  --topbar-bg:       rgba(255,255,255,.78);
  --topbar-border:   rgba(15,23,42,.08);

  --content-bg:      #F5F8FD;
  --card-bg:         #ffffff;
  --surface-2:       #f8fafc;          /* subtle inset surfaces (table heads, wells) */
  --border-color:    #e2e8f0;
  --row-hover:       rgba(var(--primary-rgb),.05);

  --text-primary:    #333333;
  --text-muted:      #64748b;
  --text-sidebar:    rgba(255,255,255,.75);

  /* Layered, soft shadows */
  --shadow-sm:       0 1px 2px rgba(15,23,42,.05), 0 1px 6px rgba(15,23,42,.04);
  --shadow-md:       0 2px 6px rgba(15,23,42,.05), 0 10px 26px rgba(15,23,42,.08);
  --shadow-lg:       0 6px 16px rgba(15,23,42,.07), 0 20px 48px rgba(15,23,42,.12);
  --glow-primary:    0 6px 18px rgba(var(--primary-rgb),.32);

  --radius:          14px;
  --radius-sm:       9px;
  --radius-lg:       18px;
  --font:            'Poppins', 'Inter', system-ui, -apple-system, sans-serif;

  /* Page background wash — very subtle brand tint top-left */
  --page-wash:
      radial-gradient(900px 480px at 8% -10%,  rgba(var(--primary-rgb),.06), transparent 60%),
      radial-gradient(720px 420px at 100% 0%,  rgba(99,102,241,.05),        transparent 55%);

  /* Build seed — read by admin.js at runtime (LMS.rev); keep in sync with releases */
  --seed: 5d8cd9b0;
}

/* ── Design tokens — DARK ──────────────────────────────────── */
/* ThemeService re-overrides the shared vars after this file loads,
   so keep these defaults in sync with ThemeService::defaults(). */
[data-theme="dark"] {
  --primary-light:  #1E2A44;

  --sidebar-bg:     linear-gradient(180deg, #101016 0%, #121218 100%);
  --sidebar-border: rgba(255,255,255,.07);
  --sidebar-hover:  rgba(255,255,255,.06);

  --topbar-bg:      rgba(20,20,25,.72);
  --topbar-border:  rgba(255,255,255,.08);

  --content-bg:     #0F0F12;
  --card-bg:        #18181C;
  --surface-2:      #1d1d23;
  --border-color:   #26262e;
  --row-hover:      rgba(var(--primary-rgb),.09);

  --text-primary:   #F1F1F5;
  --text-muted:     #8B8B9E;

  --shadow-sm:      0 1px 2px rgba(0,0,0,.35), 0 1px 6px rgba(0,0,0,.25);
  --shadow-md:      0 2px 6px rgba(0,0,0,.35), 0 12px 28px rgba(0,0,0,.45);
  --shadow-lg:      0 8px 20px rgba(0,0,0,.45), 0 24px 56px rgba(0,0,0,.55);
  --glow-primary:   0 6px 20px rgba(var(--primary-rgb),.35);

  --page-wash:
      radial-gradient(900px 480px at 8% -10%,  rgba(var(--primary-rgb),.09), transparent 60%),
      radial-gradient(720px 420px at 100% 0%,  rgba(99,102,241,.07),        transparent 55%);
}

/* ── Reset / base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text-primary);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Smooth theme switching (colours only — never layout) */
body, .admin-topbar, .admin-content, .lms-card, .stat-card, .admin-footer,
.admin-breadcrumb, .modal-content, .dropdown-menu, .form-control, .form-select,
.lms-table thead th, .lms-table tbody td {
  transition: background-color .25s ease, border-color .25s ease, color .15s ease;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

::selection { background: rgba(var(--primary-rgb),.22); }

/* Slim, theme-aware scrollbars everywhere */
* { scrollbar-width: thin; scrollbar-color: rgba(var(--primary-rgb),.28) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: rgba(100,116,139,.35); border-radius: 8px; }
*::-webkit-scrollbar-thumb:hover { background: rgba(var(--primary-rgb),.5); }

/* Native form widgets pick up brand colour (checkbox, radio, progress) */
:root { accent-color: var(--primary); }

/* ═══════════════════════════════════════════════════════════
   ADMIN LAYOUT
   ═══════════════════════════════════════════════════════════ */
.admin-body {
  background: var(--page-wash), var(--content-bg);
  background-attachment: fixed;
  display: flex;
}

/* ── Admin Sidebar ───────────────────────────────────────────── */
.adm-sidebar {
  width: 220px;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1000;
  overflow: hidden;
  transition: transform .25s ease, width .25s ease;
  border-right: 1px solid var(--sidebar-border);
  box-shadow: 2px 0 24px rgba(0,0,0,.18);
}

/* Brand */
.adm-brand {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
.adm-brand-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: #fff; flex-shrink: 0;
  box-shadow: var(--glow-primary);
}
.adm-brand-name { font-size: 15.5px; font-weight: 800; color: #fff; letter-spacing: -.2px; }

/* Nav */
.adm-nav {
  flex: 1;
  padding: 10px 10px;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.adm-nav::-webkit-scrollbar { width: 3px; }
.adm-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 2px; }

/* Section labels between menu groups */
.adm-nav-group-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: rgba(255,255,255,.32);
  padding: 6px 12px;
  margin-top: 10px;
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 12px;
  user-select: none;
}
.adm-nav-group-label:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 4px;
}

.adm-nav-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--text-sidebar);
  text-decoration: none !important;
  font-size: 13.5px; font-weight: 500;
  border: none; background: transparent;
  cursor: pointer; width: 100%;
  transition: background .15s, color .15s, transform .15s;
  white-space: nowrap;
  position: relative;
}
.adm-nav-btn i {
  font-size: 16px; flex-shrink: 0; width: 20px; text-align: center;
  transition: transform .15s;
}
.adm-nav-btn:hover { background: var(--sidebar-hover); color: #fff; transform: translateX(2px); }
.adm-nav-btn:hover i { transform: scale(1.08); }

/* Pending-migrations badge on the Database item */
.adm-nav-badge {
  margin-left: auto;
  background: #ef4444; color: #fff;
  font-size: 10.5px; font-weight: 700; line-height: 1;
  min-width: 18px; height: 18px; padding: 0 5px;
  border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 0 0 2px rgba(239,68,68,.25);
  animation: admBadgePulse 2s ease-in-out infinite;
}
@keyframes admBadgePulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(239,68,68,.28); }
  50%      { box-shadow: 0 0 0 4px rgba(239,68,68,.06); }
}
@media (prefers-reduced-motion: reduce) { .adm-nav-badge { animation: none; } }

/* Active item — gradient pill + glow + left accent */
.adm-nav-btn.active {
  background: linear-gradient(90deg,
      rgba(var(--primary-rgb),.28), rgba(var(--primary-rgb),.12));
  color: #fff !important;
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(var(--primary-rgb),.25);
  transform: none;
}
.adm-nav-btn.active i { color: #9db9ff; }
.adm-nav-btn.active::before {
  content: '';
  position: absolute;
  left: -10px; top: 18%; bottom: 18%;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), #818cf8);
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 10px rgba(var(--primary-rgb),.8);
}

/* Bottom user row */
.adm-sidebar-bottom {
  flex-shrink: 0;
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 10px;
  background: rgba(0,0,0,.14);
}
.adm-user-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px 8px;
  border-radius: 10px;
  transition: background .15s;
}
a.adm-user-row:hover { background: rgba(255,255,255,.08); }
.adm-user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(var(--primary-rgb),.85), #6366f1);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(var(--primary-rgb),.4);
}
.adm-user-info { flex: 1; min-width: 0; }
.adm-user-name { font-size: 13px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.adm-user-role { font-size: 11px; color: rgba(255,255,255,.42); }
.adm-logout:hover { color: #f87171 !important; }

/* Main area shifts right */
.admin-main {
  margin-left: 220px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* ── Topbar — frosted glass ─────────────────────────────────── */
.admin-topbar {
  height: var(--topbar-h);
  background: var(--topbar-bg);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  backdrop-filter: blur(14px) saturate(1.6);
  border-bottom: 1px solid var(--topbar-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  position: sticky; top: 0; z-index: 500;
}

.topbar-toggle {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 20px; padding: 4px;
  display: none;
}

.topbar-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.2px;
  color: var(--text-primary);
}

.topbar-icon-btn {
  background: none; border: none; cursor: pointer;
  width: 36px; height: 36px;
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 17px;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s, transform .1s;
}
.topbar-icon-btn:hover {
  background: rgba(var(--primary-rgb),.1);
  color: var(--primary);
  transform: translateY(-1px);
}
.topbar-icon-btn:active { transform: translateY(0); }

/* Theme (dark-mode) toggle — sun/moon crossfade */
#admThemeToggle .bi { transition: transform .35s ease, opacity .2s; }
#admThemeToggle:hover .bi { transform: rotate(24deg); }

.badge-dot {
  width: 7px; height: 7px;
  background: var(--danger);
  border-radius: 50%;
  position: absolute; top: 6px; right: 6px;
  border: 2px solid var(--card-bg);
}

.topbar-divider {
  width: 1px; height: 24px;
  background: var(--border-color);
  margin: 0 4px;
}

.topbar-user-btn {
  display: flex; align-items: center; gap: 8px;
  background: none; border: none; cursor: pointer;
  padding: 4px 8px;
  border-radius: 10px;
  transition: background .15s;
  color: var(--text-primary);
}
.topbar-user-btn:hover { background: rgba(var(--primary-rgb),.08); }
.topbar-user-btn::after { display: none; } /* Remove default BS caret */
.topbar-user-btn .dropdown-toggle::after { display: inline-block; }

.topbar-avatar {
  width: 32px; height: 32px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  box-shadow: inset 0 0 0 1.5px rgba(var(--primary-rgb),.25);
}

.topbar-username { font-size: 13px; font-weight: 600; }

.topbar-dropdown {
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  min-width: 180px;
  overflow: hidden;
}

/* ── Breadcrumb ─────────────────────────────────────────────── */
.admin-breadcrumb {
  padding: 10px 20px;
  background: transparent;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb { font-size: 12.5px; margin-bottom: 0; }
.breadcrumb-item a { color: var(--primary); text-decoration: none; }
.breadcrumb-item a:hover { text-decoration: underline; }
.breadcrumb-item.active { color: var(--text-muted); }

/* ── Content ────────────────────────────────────────────────── */
.admin-content {
  flex: 1;
  padding: 24px 20px;
  /* No fill-mode here on purpose: `both` keeps the transform animation
     applied forever, which makes .admin-content a permanent containing
     block / stacking context. Bootstrap modals rendered inside page content
     then paint BELOW the body-appended .modal-backdrop (z-index 1050) and
     become unclickable. Without a fill-mode the animation stops applying
     after 0.3s and modals stack normally. */
  animation: admFadeIn .3s ease;
}
@keyframes admFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* ── Stat cards — soft depth + gradient accent ──────────────── */
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.stat-card::before {                     /* gradient hairline on top */
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), #818cf8, transparent 80%);
  opacity: 0;
  transition: opacity .2s;
}
.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(var(--primary-rgb),.35);
}
.stat-card:hover::before { opacity: 1; }

/* Filter-selected stat card (e.g. enrolment status tiles) */
.stat-card.ring-active {
  border-color: rgba(var(--primary-rgb),.55);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb),.14), var(--shadow-sm);
}
.stat-card.ring-active::before { opacity: 1; }

/* Icon chip — soft wash of its own colour (works with text-* utilities) */
.stat-icon {
  font-size: 22px; flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, currentColor 12%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, currentColor 18%, transparent);
}
.stat-body { flex: 1; }
.stat-value { font-size: 22px; font-weight: 800; letter-spacing: -.4px; color: var(--text-primary); font-variant-numeric: tabular-nums; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.stat-badge { font-size: 10.5px; font-weight: 600; }

/* ── Cards ──────────────────────────────────────────────────── */
.lms-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  background: var(--card-bg);
  overflow: hidden;
  transition: box-shadow .2s;
}
.lms-card:hover { box-shadow: var(--shadow-md); }

.lms-card-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
}

/* Bootstrap .card fallback — many admin pages use it directly */
.admin-content .card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  background: var(--card-bg);
  color: var(--text-primary);
}
.admin-content .card-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
}

/* ── Tables ─────────────────────────────────────────────────── */
.lms-table { font-size: 13.5px; margin-bottom: 0; }
.lms-table thead th {
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  border-bottom: 1px solid var(--border-color);
  padding: 11px 16px;
  position: sticky; top: 0;
  z-index: 1;
}
.lms-table tbody tr { transition: background .12s; }
.lms-table tbody tr:hover { background: var(--row-hover); }
.lms-table tbody td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
  color: var(--text-primary);
  background: transparent;
}
.lms-table tbody tr:last-child td { border-bottom: none; }

/* Bootstrap table colours follow the theme */
.admin-content .table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--text-primary);
  --bs-table-border-color: var(--border-color);
  --bs-table-hover-bg: var(--row-hover);
  --bs-table-hover-color: var(--text-primary);
  --bs-table-striped-bg: var(--surface-2);
  --bs-table-striped-color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════
   BOOTSTRAP COMPONENT POLISH (buttons, forms, modals, …)
   ═══════════════════════════════════════════════════════════ */

/* Buttons — slightly rounder, primary gets gradient + glow */
.btn { border-radius: var(--radius-sm); font-weight: 600; transition: all .15s ease; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  --bs-btn-bg: var(--primary);
  --bs-btn-border-color: var(--primary);
  --bs-btn-hover-bg: var(--primary-dark);
  --bs-btn-hover-border-color: var(--primary-dark);
  --bs-btn-active-bg: var(--primary-dark);
  --bs-btn-active-border-color: var(--primary-dark);
  background-image: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  box-shadow: 0 2px 10px rgba(var(--primary-rgb),.28);
}
.btn-primary:hover {
  background-image: linear-gradient(135deg, var(--primary-dark), var(--primary-dark));
  box-shadow: var(--glow-primary);
  transform: translateY(-1px);
}
.btn-outline-primary {
  --bs-btn-color: var(--primary);
  --bs-btn-border-color: rgba(var(--primary-rgb),.5);
  --bs-btn-hover-bg: var(--primary);
  --bs-btn-hover-border-color: var(--primary);
}
.btn-light { border-color: var(--border-color); }

/* Forms — soft fields with brand focus ring */
.form-control, .form-select {
  border-radius: var(--radius-sm);
  border-color: var(--border-color);
  background-color: var(--card-bg);
  color: var(--text-primary);
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3.5px rgba(var(--primary-rgb),.13);
  background-color: var(--card-bg);
  color: var(--text-primary);
}
.form-control::placeholder { color: var(--text-muted); opacity: .75; }
.form-label { font-weight: 600; font-size: 13px; color: var(--text-primary); }
.form-text  { color: var(--text-muted); }

.form-check-input:checked { background-color: var(--primary); border-color: var(--primary); }
.form-check-input:focus   { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb),.15); }
.form-switch .form-check-input { cursor: pointer; }

.input-group-text {
  background: var(--surface-2);
  border-color: var(--border-color);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}

/* Dropdown menus — floating glass panels */
.dropdown-menu {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  background-color: var(--card-bg);
  color: var(--text-primary);
  padding: 6px;
}
.dropdown-item {
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--text-primary);
  transition: background .12s, color .12s;
}
.dropdown-item:hover, .dropdown-item:focus {
  background-color: rgba(var(--primary-rgb),.09);
  color: var(--text-primary);
}
.dropdown-item:active { background-color: var(--primary-light); color: var(--primary); }
.dropdown-divider { border-color: var(--border-color); }

/* Modals — large radius, deep shadow */
.modal-content {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background-color: var(--card-bg);
  color: var(--text-primary);
}
.modal-header { border-bottom-color: var(--border-color); }
.modal-footer { border-top-color: var(--border-color); }
.modal-backdrop.show { opacity: .55; backdrop-filter: blur(2px); }

/* Nav tabs / pills */
.nav-tabs { border-bottom-color: var(--border-color); }
.nav-tabs .nav-link {
  color: var(--text-muted);
  font-weight: 600;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 8px 8px 0 0;
  transition: color .15s, border-color .15s, background .15s;
}
.nav-tabs .nav-link:hover { color: var(--primary); background: rgba(var(--primary-rgb),.05); }
.nav-tabs .nav-link.active {
  color: var(--primary);
  background: transparent;
  border-bottom: 2px solid var(--primary);
}
.nav-pills .nav-link { color: var(--text-muted); font-weight: 600; border-radius: 10px; }
.nav-pills .nav-link.active { background: var(--primary); box-shadow: 0 2px 10px rgba(var(--primary-rgb),.3); }

/* Pagination */
.pagination { --bs-pagination-border-radius: var(--radius-sm); }
.page-link {
  color: var(--primary);
  border-color: var(--border-color);
  background-color: var(--card-bg);
}
.page-link:hover { background-color: rgba(var(--primary-rgb),.08); color: var(--primary); }
.page-item.active .page-link {
  background-color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(var(--primary-rgb),.3);
}
.page-item.disabled .page-link { background-color: var(--surface-2); color: var(--text-muted); }

/* Badges & alerts */
.badge { font-weight: 600; letter-spacing: .2px; border-radius: 7px; }
.alert { border-radius: var(--radius); border-width: 1px; }

/* Progress bars */
.progress { border-radius: 20px; background-color: var(--surface-2); overflow: hidden; }
.progress-bar { background: linear-gradient(90deg, var(--primary), #818cf8); }

/* Offcanvas + toasts follow surfaces */
.offcanvas { background-color: var(--card-bg); color: var(--text-primary); }
.toast     { border-radius: var(--radius); box-shadow: var(--shadow-md); }

/* ═══════════════════════════════════════════════════════════
   AUTH LAYOUT  (forgot / reset / 2FA — login has its own page CSS)
   ═══════════════════════════════════════════════════════════ */
.auth-body { padding: 16px; }

.auth-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 36px 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: #fff;
  margin: 0 auto 20px;
  box-shadow: var(--glow-primary);
}

.auth-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.3px;
  text-align: center;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.auth-subtitle {
  font-size: 13.5px;
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.form-floating label { font-size: 13.5px; color: var(--text-muted); }

.password-toggle {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 15px;
  z-index: 10;
}

.btn-login {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  padding: 12px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(var(--primary-rgb),.28);
  transition: box-shadow .15s, transform .1s;
}
.btn-login:hover { box-shadow: var(--glow-primary); transform: translateY(-1px); }
.btn-login:active { transform: translateY(0); }

.auth-phase-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 18px;
  padding: 10px;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
}

.auth-links {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 14px;
}

/* ═══════════════════════════════════════════════════════════
   STUDENT LAYOUT (legacy hooks — student app itself uses app.css)
   ═══════════════════════════════════════════════════════════ */
.student-body {
  background: var(--content-bg);
  display: flex;
}

.student-sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: #1e293b;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1000;
  overflow-y: auto;
  transition: transform .25s ease;
}

.student-sidebar .nav-item.active {
  background: rgba(var(--primary-rgb),.18);
  color: var(--primary);
  border-left-color: var(--primary);
}

.student-sidebar .brand-logo { background: var(--primary); }

.student-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.student-topbar {
  height: var(--topbar-h);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  position: sticky; top: 0; z-index: 500;
  box-shadow: var(--shadow-sm);
}

.student-content { flex: 1; padding: 24px 20px; }
.student-footer { text-align: center; font-size: 12px; color: var(--text-muted); padding: 14px; border-top: 1px solid var(--border-color); background: var(--card-bg); }

/* Student stat cards */
.student-stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s;
}
.student-stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.student-stat-icon { font-size: 28px; margin-bottom: 8px; }
.student-stat-value { font-size: 24px; font-weight: 700; color: var(--text-primary); }
.student-stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ═══════════════════════════════════════════════════════════
   DARK THEME — component-level fixes on top of the token swap
   ═══════════════════════════════════════════════════════════ */
[data-theme="dark"] .badge-dot { border-color: var(--card-bg); }
[data-theme="dark"] .topbar-avatar { background: rgba(var(--primary-rgb),.16); }
[data-theme="dark"] .stat-icon {
  background: color-mix(in srgb, currentColor 16%, transparent);
}
[data-theme="dark"] .admin-content .card,
[data-theme="dark"] .lms-card { box-shadow: var(--shadow-sm); }
[data-theme="dark"] .modal-backdrop.show { opacity: .7; }
[data-theme="dark"] .btn-light,
[data-theme="dark"] .btn-outline-secondary {
  --bs-btn-bg: transparent;
  --bs-btn-color: var(--text-primary);
  --bs-btn-border-color: var(--border-color);
  --bs-btn-hover-bg: var(--surface-2);
  --bs-btn-hover-color: var(--text-primary);
  --bs-btn-hover-border-color: var(--border-color);
}
[data-theme="dark"] .text-dark { color: var(--text-primary) !important; }
[data-theme="dark"] .bg-white, [data-theme="dark"] .bg-light { background-color: var(--card-bg) !important; }
[data-theme="dark"] .border { border-color: var(--border-color) !important; }
[data-theme="dark"] img { opacity: .94; }

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE — collapse sidebar on mobile
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .adm-sidebar {
    transform: translateX(-100%);
    z-index: 1050;
  }
  .adm-sidebar.mobile-open {
    transform: translateX(0);
  }
  .admin-main {
    margin-left: 0 !important;
  }
  .topbar-toggle { display: flex !important; }

  .auth-card { padding: 28px 20px; }
}

/* ═══════════════════════════════════════════════════════════
   IMPERSONATION BANNER
   ═══════════════════════════════════════════════════════════ */
.impersonation-banner {
  background: linear-gradient(90deg, #7c3aed, #6d28d9);
  color: #fff;
  font-size: 13px;
  padding: 9px 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  position: sticky;
  top: var(--topbar-h);
  z-index: 490;
  box-shadow: 0 2px 8px rgba(109,40,217,.3);
}

.impersonation-banner .btn-warning {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 6px;
}

/* ═══════════════════════════════════════════════════════════
   RICH TEXT EDITOR (RichEditor / TinyMCE) — themed borders
   ═══════════════════════════════════════════════════════════ */
.tox-tinymce {
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius) !important;
}

/* ═══════════════════════════════════════════════════════════
   STUDENT COURSE CARD — Start button
   ═══════════════════════════════════════════════════════════ */
.course-card {
  border-radius: var(--radius) !important;
  transition: transform .2s, box-shadow .2s;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
}
.course-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.course-card .course-thumb {
  height: 150px;
  object-fit: cover;
  width: 100%;
  display: block;
}
.course-card .course-thumb-placeholder {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg,var(--primary),var(--primary-dark));
}
.course-card .course-body { padding: 14px 16px 10px; }
.course-card .course-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-card .course-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.course-card .course-footer {
  padding: 10px 16px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.btn-start-course {
  background: linear-gradient(135deg,var(--primary),var(--primary-dark));
  color: #fff !important;
  border: none;
  border-radius: 8px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none !important;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity .15s, transform .1s;
}
.btn-start-course:hover { opacity: .9; transform: translateY(-1px); }
.btn-start-course.completed {
  background: linear-gradient(135deg,#0e9f6e,#059669);
}

/* ═══════════════════════════════════════════════════════════
   STUDENT BOTTOM NAV (PWA app-like)
   ═══════════════════════════════════════════════════════════ */
.student-bottom-nav {
  display: none; /* shown only on mobile/PWA */
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 1100;
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -4px 20px rgba(0,0,0,.1);
  padding: 0;
  height: 64px;
  padding-bottom: env(safe-area-inset-bottom, 0px); /* iPhone notch */
}
.student-bottom-nav .nav-items {
  display: flex;
  height: 100%;
}
.student-bottom-nav .nav-item-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 10.5px;
  font-weight: 500;
  padding: 8px 4px;
  border: none;
  background: none;
  cursor: pointer;
  transition: color .15s;
  position: relative;
}
.student-bottom-nav .nav-item-btn i {
  font-size: 20px;
  line-height: 1;
}
.student-bottom-nav .nav-item-btn.active,
.student-bottom-nav .nav-item-btn:hover {
  color: var(--primary);
}
.student-bottom-nav .nav-item-btn.active::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 32px; height: 3px;
  background: var(--primary);
  border-radius: 0 0 4px 4px;
}
/* Active icon — filled version */
.student-bottom-nav .nav-item-btn.active i { font-weight: 900; }

/* Show bottom nav on small screens OR standalone PWA */
@media (max-width: 768px) {
  .student-bottom-nav { display: block; }
  .student-main { padding-bottom: 72px; }
  /* Hide sidebar on mobile — use bottom nav instead */
  .student-sidebar { transform: translateX(-100%); }
  .student-main  { margin-left: 0 !important; }
}
@media all and (display-mode: standalone) {
  .student-bottom-nav { display: block; }
  .student-main { padding-bottom: 72px; }
  .student-sidebar { transform: translateX(-100%) !important; }
  .student-main  { margin-left: 0 !important; }
}

/* LOGIN PAGE — split layout (legacy hooks) */
.login-split {
  min-height: 100vh;
  display: flex;
  width: 100%;
  max-width: 100%;
}
.login-split-left {
  flex: 1;
  background: linear-gradient(145deg,#0f172a 0%,#1e1b4b 50%,#312e81 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px;
  position: relative;
  overflow: hidden;
}
.login-split-left::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: rgba(var(--primary-rgb),.15);
  top: -80px; right: -80px;
}
.login-split-left::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: rgba(var(--primary-rgb),.1);
  bottom: -60px; left: -60px;
}
.login-split-right {
  width: 480px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 40px;
  background: #fff;
}
.login-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
  z-index: 1;
}
.login-feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,.85);
  font-size: 15px;
  margin-bottom: 18px;
}
.login-feature-list li i {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(255,255,255,.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .login-split { flex-direction: column; }
  .login-split-left { display: none; }
  .login-split-right { width: 100%; min-height: 100vh; padding: 32px 20px; background: linear-gradient(135deg,#1e293b,#0f172a); }
  .login-split-right .login-form-card { background: #fff; border-radius: 20px; padding: 32px 24px; width: 100%; max-width: 420px; }
}

/* ── Student sidebar collapsed state (desktop hamburger) ────────────────── */
.student-sidebar.collapsed {
  width: 0;
  overflow: hidden;
  min-width: 0;
}
.student-main.sidebar-collapsed {
  margin-left: 0 !important;
}
/* Smooth transition */
.student-sidebar {
  transition: width .25s ease, transform .25s ease;
}
.student-main {
  transition: margin-left .25s ease;
}

/* Student topbar always show hamburger */
.student-topbar .topbar-toggle {
  display: flex !important;
}

/* ── Notification bell ────────────────────────────────────────────────────── */
.notif-badge {
  position: absolute;
  top: 2px; right: 2px;
  min-width: 16px; height: 16px;
  border-radius: 8px;
  background: #e02424;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  padding: 0 3px;
  pointer-events: none;
}
.notif-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background .1s;
}
.notif-item:hover { background: var(--row-hover); }
.notif-item.unread { background: rgba(var(--primary-rgb),.08); }
.notif-item.unread:hover { background: rgba(var(--primary-rgb),.13); }
.notif-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--primary); flex-shrink: 0; margin-top: 5px;
}
.notif-read-dot { width: 8px; height: 8px; flex-shrink: 0; }
.notif-title { font-size: 13px; font-weight: 600; color: var(--text-primary); line-height: 1.3; }
.notif-body  { font-size: 12px; color: var(--text-muted); margin-top: 2px; line-height: 1.4; }
.notif-time  { font-size: 11px; color: var(--text-muted); flex-shrink: 0; margin-top: 2px; white-space: nowrap; }

/* ── Admin footer ─────────────────────────────────────────────────────────── */
.admin-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
  background: transparent;
}
.admin-footer a { color: var(--text-muted); text-decoration: none; }
.admin-footer a:hover { color: var(--primary); }

/* ── Admin sidebar mobile responsive ─────────────────────────── */
@media (max-width: 991px) {
  .adm-sidebar {
    transform: translateX(-100%);
    z-index: 1050;
  }
  .adm-sidebar.mobile-open { transform: translateX(0); }
  .admin-main { margin-left: 0 !important; }
  .topbar-toggle { display: flex !important; }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE TYPOGRAPHY — GLOBAL STANDARD
   Normalizes oversized text on mobile / tablet across every page.
   Sizes ONLY (no colors or weights), so components keep their look
   but scale to the viewport. Desktop (>991px) is untouched.
═══════════════════════════════════════════════════════════════ */

/* ── Tablet (≤991px): tame the largest sizes ── */
@media (max-width: 991.98px) {
  h1, .h1       { font-size: 26px !important; }
  .display-1, .display-2, .display-3 { font-size: clamp(28px, 6vw, 40px) !important; }
  .display-4, .display-5, .display-6 { font-size: clamp(24px, 5vw, 32px) !important; }
  .fs-1         { font-size: 26px !important; }
  .fs-2         { font-size: 22px !important; }
}

/* ── Phone (≤768px): the standard mobile type scale ── */
@media (max-width: 768px) {
  h1, .h1       { font-size: 22px   !important; }
  h2, .h2       { font-size: 19px   !important; }
  h3, .h3       { font-size: 17px   !important; }
  h4, .h4       { font-size: 15.5px !important; }
  h5, .h5       { font-size: 14.5px !important; }
  h6, .h6       { font-size: 13.5px !important; }

  .display-1, .display-2, .display-3,
  .display-4, .display-5, .display-6 { font-size: clamp(22px, 7vw, 28px) !important; }

  .fs-1         { font-size: 22px !important; }
  .fs-2         { font-size: 19px !important; }
  .fs-3         { font-size: 17px !important; }
  .fs-4         { font-size: 16px !important; }
  .lead         { font-size: 15px !important; }

  .modal-title  { font-size: 16.5px !important; }
  .btn-lg       { font-size: 15.5px !important; }
  .table        { font-size: 13.5px; }

  /* iOS Safari auto-zooms into focused fields whose font-size is < 16px —
     16px inputs keep the viewport stable while typing */
  input.form-control, select.form-select, textarea.form-control { font-size: 16px !important; }
  .form-control-lg { font-size: 17px !important; }
}
