/* ════════════════════════════════════════════════════════════════
   AL MAHDY CHEMISTRY — SHARED DARK/LIGHT MODE SYSTEM
   dark-mode.css  |  index.html · lesson.html · auth.html · dashboard.html
   ════════════════════════════════════════════════════════════════ */

/* ── Smooth transitions ── */
body, header, .navbar, section, footer,
.pcc, .pcc-body, .stat-card, .faq-item, .glass-card,
.filter-chip, .why-card, .feature-card,
.result-card, .teacher-card, .hero-badge,
.lesson-topbar, .lesson-sidebar, .video-card,
.auth-card, .auth-panel, .topbar, .table-card,
.course-admin-card, input, textarea, select, label,
.nav-link, .logo-name, .logo-sub, .hamburger span,
.section-title, .section-sub {
  transition: background-color 0.3s ease,
              background 0.3s ease,
              color 0.3s ease,
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

/* ═══════════════════════════════════════
   NAVBAR TOGGLE BUTTON (index.html)
   ═══════════════════════════════════════ */
.theme-toggle {
  position: relative; width: 56px; height: 28px;
  background: none; border: none; cursor: pointer;
  padding: 0; flex-shrink: 0; outline: none; z-index: 10;
}
.theme-toggle-track {
  display: block; width: 56px; height: 28px;
  background: linear-gradient(135deg, #0a0f1a, #060d1a);
  border: 1.5px solid rgba(6,182,212,0.5);
  border-radius: 999px; position: relative;
  box-shadow: 0 0 10px rgba(6,182,212,0.15), inset 0 1px 0 rgba(255,255,255,0.05);
  transition: background 0.4s, border-color 0.4s, box-shadow 0.4s;
}
.theme-toggle:hover .theme-toggle-track {
  border-color: rgba(6,182,212,0.85);
  box-shadow: 0 0 18px rgba(6,182,212,0.35), inset 0 1px 0 rgba(255,255,255,0.05);
}
.theme-toggle-thumb {
  position: absolute; top: 3px; left: 3px;
  width: 20px; height: 20px;
  background: linear-gradient(135deg, #06B6D4, #3b82f6);
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center;
  transition: transform 0.45s cubic-bezier(0.34,1.56,0.64,1), background 0.4s;
  box-shadow: 0 0 12px rgba(6,182,212,0.7), 0 2px 6px rgba(0,0,0,0.5);
  overflow: hidden;
}
.icon-sun, .icon-moon {
  position: absolute; color: #fff;
  transition: opacity 0.3s, transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.icon-sun  { opacity: 0; transform: rotate(90deg)  scale(0.6); }
.icon-moon { opacity: 1; transform: rotate(0deg)   scale(1);   }

/* Light mode toggle state */
:root.light-mode .theme-toggle-track {
  background: linear-gradient(135deg, #e0f2fe, #bae6fd);
  border-color: rgba(251,191,36,0.55);
  box-shadow: 0 0 8px rgba(251,191,36,0.15);
}
:root.light-mode .theme-toggle-thumb {
  transform: translateX(28px);
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  box-shadow: 0 2px 10px rgba(245,158,11,0.5);
}
:root.light-mode .icon-sun  { opacity: 1; transform: rotate(0deg)   scale(1); }
:root.light-mode .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.6); }


/* ═══════════════════════════════════════
   FLOATING BUTTON (lesson / auth / dashboard)
   ═══════════════════════════════════════ */
.floating-theme-btn {
  position: fixed; bottom: 24px; left: 24px; z-index: 9999;
  width: 46px; height: 46px; border-radius: 50%; border: none;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  background: #050a12;
  border: 1.5px solid rgba(6,182,212,0.55);
  box-shadow: 0 0 20px rgba(6,182,212,0.25), 0 4px 16px rgba(0,0,0,0.6);
  transition: transform 0.25s, box-shadow 0.3s;
}
.floating-theme-btn:hover {
  transform: scale(1.12);
  box-shadow: 0 0 30px rgba(6,182,212,0.4), 0 4px 20px rgba(0,0,0,0.7);
}
:root.light-mode .floating-theme-btn {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border-color: rgba(245,158,11,0.5);
  box-shadow: 0 4px 20px rgba(245,158,11,0.2), 0 2px 8px rgba(0,0,0,0.15);
}
.floating-theme-btn .flt-icon-sun,
.floating-theme-btn .flt-icon-moon {
  position: absolute; width: 18px; height: 18px;
  transition: opacity 0.3s, transform 0.3s;
}
.floating-theme-btn .flt-icon-sun  { opacity: 0; transform: rotate(90deg)  scale(0.6); color: #92400e; }
.floating-theme-btn .flt-icon-moon { opacity: 1; transform: rotate(0deg)   scale(1);   color: #06d6f7; }
:root.light-mode .floating-theme-btn .flt-icon-sun  { opacity: 1; transform: rotate(0deg)   scale(1); }
:root.light-mode .floating-theme-btn .flt-icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.6); }


/* ══════════════════════════════════════════════════════════
   DARK MODE — TRUE NIGHT (Default / no .light-mode class)
   Applied to html that does NOT have .light-mode class
   ══════════════════════════════════════════════════════════ */

/* ─── Root & Body ─── */
html:not(.light-mode) {
  background: #050d1a !important;
  color-scheme: dark;
}
html:not(.light-mode) body {
  background: transparent !important;
  color: #e2e8f0 !important;
  position: relative;
}

/* ─── Chemistry Canvas Background (global, all sections) ─── */
html:not(.light-mode) body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse at 15% 20%, rgba(6,182,212,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 70%, rgba(37,99,235,0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(139,92,246,0.04) 0%, transparent 60%),
    linear-gradient(160deg, #050d1a 0%, #070f1f 40%, #060c18 70%, #040a15 100%);
  pointer-events: none;
}

/* ─── Animated Chemistry Molecules Canvas ─── */
html:not(.light-mode) #chem-canvas-bg {
  position: fixed !important;
  inset: 0 !important;
  z-index: -1 !important;
  pointer-events: none !important;
  opacity: 1 !important;
}

/* ─── Mobile nav menu (was rgba white) ─── */
html:not(.light-mode) .nav-links {
  background: rgba(2,5,10,0.98) !important;
  border-color: rgba(6,182,212,0.08) !important;
}

/* ─── btn-secondary (was white glass) ─── */
html:not(.light-mode) .btn-secondary {
  background: rgba(10,15,25,0.9) !important;
  color: #e2e8f0 !important;
  border-color: rgba(255,255,255,0.1) !important;
}
html:not(.light-mode) .btn-secondary:hover {
  background: rgba(6,182,212,0.08) !important;
  border-color: rgba(6,182,212,0.3) !important;
}

/* ─── Glass / backdrop elements ─── */
html:not(.light-mode) [class*="glass"],
html:not(.light-mode) [class*="bg-blob"],
html:not(.light-mode) [class*="bg-hex"] {
  background: rgba(2,5,10,0.85) !important;
}

/* ─── Particle canvas — ensure dark base ─── */
html:not(.light-mode) #particle-canvas {
  opacity: 0.25 !important;
}

/* ─── Navbar ─── */
html:not(.light-mode) .navbar {
  background: rgba(4,9,20,0.88) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border-bottom: 1px solid rgba(6,182,212,0.12) !important;
  box-shadow: 0 1px 30px rgba(0,0,0,0.6), 0 0 60px rgba(6,182,212,0.03) !important;
}
html:not(.light-mode) .logo-name  { color: #f1f5f9 !important; }
html:not(.light-mode) .logo-sub   { color: #06B6D4 !important; }
html:not(.light-mode) .nav-link   { color: #94a3b8 !important; }
html:not(.light-mode) .nav-link:hover,
html:not(.light-mode) .nav-link.active { color: #06B6D4 !important; }
html:not(.light-mode) .btn-ghost  { color: #94a3b8 !important; border-color: rgba(255,255,255,0.1) !important; }
html:not(.light-mode) .btn-ghost:hover { background: rgba(255,255,255,0.05) !important; }
html:not(.light-mode) .hamburger span { background: #94a3b8 !important; }

/* ─── Hero ─── */
html:not(.light-mode) .hero-section {
  background: transparent !important;
}
html:not(.light-mode) .hero-title { color: #f1f5f9 !important; }
html:not(.light-mode) .hero-sub   { color: #94a3b8 !important; }
html:not(.light-mode) .hero-badge {
  background: rgba(6,182,212,0.08) !important;
  color: #67e8f9 !important;
  border-color: rgba(6,182,212,0.2) !important;
}
html:not(.light-mode) .hex-pattern { opacity: 0.03 !important; filter: invert(0) !important; }

/* ─── Course Cards ─── */
html:not(.light-mode) .pcc {
  background: rgba(6,10,22,0.6) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-color: rgba(6,182,212,0.1) !important;
  box-shadow: 0 4px 30px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.04) !important;
}
html:not(.light-mode) .pcc:hover {
  background: rgba(8,14,32,0.75) !important;
  border-color: rgba(6,182,212,0.22) !important;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6), 0 0 24px rgba(6,182,212,0.09) !important;
}
html:not(.light-mode) .pcc-body    { background: transparent !important; }
html:not(.light-mode) .pcc-title   { color: #f1f5f9 !important; }
html:not(.light-mode) .pcc-desc    { color: #64748b !important; }
html:not(.light-mode) .pcc-detail  { color: #475569 !important; }
html:not(.light-mode) .pcc-updated { color: #334155 !important; }
html:not(.light-mode) .pcc-score   { color: #94a3b8 !important; }
html:not(.light-mode) .pcc-reviews { color: #475569 !important; }

/* ─── Sections — transparent so chemistry bg shows ─── */
html:not(.light-mode) section {
  background: transparent !important;
}
html:not(.light-mode) #courses,
html:not(.light-mode) #stats,
html:not(.light-mode) #faq {
  background: rgba(1,3,8,0.35) !important;
}
html:not(.light-mode) #subjects,
html:not(.light-mode) #why,
html:not(.light-mode) #features,
html:not(.light-mode) #results,
html:not(.light-mode) #teacher {
  background: rgba(3,6,14,0.3) !important;
}
html:not(.light-mode) .section-title { color: #e2e8f0 !important; }
html:not(.light-mode) .section-sub   { color: #475569 !important; }

/* ─── Filter chips ─── */
html:not(.light-mode) .filter-chip {
  background: #0a0d15 !important;
  color: #64748b !important;
  border-color: rgba(255,255,255,0.07) !important;
}
html:not(.light-mode) .filter-chip.active,
html:not(.light-mode) .filter-chip:hover {
  background: rgba(6,182,212,0.1) !important;
  color: #06B6D4 !important;
  border-color: rgba(6,182,212,0.3) !important;
}

/* ─── Stats ─── */
html:not(.light-mode) .stat-card {
  background: rgba(6,10,22,0.55) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border-color: rgba(6,182,212,0.09) !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04) !important;
}
html:not(.light-mode) .stat-value,
html:not(.light-mode) .stat-num   { color: #e2e8f0 !important; }
html:not(.light-mode) .stat-label { color: #475569 !important; }

/* ─── FAQ ─── */
html:not(.light-mode) .faq-item {
  background: rgba(6,10,22,0.55) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border-color: rgba(6,182,212,0.08) !important;
}
html:not(.light-mode) .faq-question { color: #e2e8f0 !important; }
html:not(.light-mode) .faq-answer   { color: #64748b !important; }

/* ─── Feature / Why / Result cards ─── */
html:not(.light-mode) .why-card,
html:not(.light-mode) .feature-card,
html:not(.light-mode) .result-card {
  background: rgba(7,12,28,0.55) !important;
  backdrop-filter: blur(14px) !important;
  -webkit-backdrop-filter: blur(14px) !important;
  border-color: rgba(6,182,212,0.1) !important;
  color: #e2e8f0 !important;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4), inset 0 1px 0 rgba(6,182,212,0.06) !important;
}
html:not(.light-mode) .why-card:hover,
html:not(.light-mode) .feature-card:hover {
  border-color: rgba(6,182,212,0.25) !important;
  background: rgba(7,16,36,0.7) !important;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5), 0 0 20px rgba(6,182,212,0.07), inset 0 1px 0 rgba(6,182,212,0.1) !important;
}

/* ─── Teacher card ─── */
html:not(.light-mode) .teacher-card {
  background: #07090f !important;
  border-color: rgba(255,255,255,0.05) !important;
  color: #e2e8f0 !important;
}
html:not(.light-mode) .teacher-name { color: #f1f5f9 !important; }
html:not(.light-mode) .teacher-bio  { color: #64748b !important; }

/* ─── Hero profile card ─── */
html:not(.light-mode) .hv2-profile-card,
html:not(.light-mode) .hv2-photo-wrap {
  background: rgba(6,182,212,0.04) !important;
  border-color: rgba(6,182,212,0.15) !important;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8), 0 0 40px rgba(6,182,212,0.06) !important;
}
html:not(.light-mode) .hv2-achievement-badge,
html:not(.light-mode) .hv2-photo-badge {
  background: rgba(3,7,15,0.92) !important;
  border-color: rgba(6,182,212,0.15) !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.7) !important;
}

/* ─── Glass elements ─── */
html:not(.light-mode) .glass-card,
html:not(.light-mode) [class*="glass"] {
  background: rgba(7,9,15,0.85) !important;
  border-color: rgba(255,255,255,0.06) !important;
  color: #e2e8f0 !important;
}

/* ─── Scrollbar ─── */
html:not(.light-mode) ::-webkit-scrollbar { width: 6px; }
html:not(.light-mode) ::-webkit-scrollbar-track { background: #010306 !important; }
html:not(.light-mode) ::-webkit-scrollbar-thumb { background: #0f172a !important; border-radius: 99px; }
html:not(.light-mode) ::-webkit-scrollbar-thumb:hover { background: #1e293b !important; }


/* ═══════════════════════════════════════════════════
   LESSON.HTML — TRUE NIGHT
   ═══════════════════════════════════════════════════ */
html:not(.light-mode) body.lesson-body {
  background: transparent !important; color: #e2e8f0 !important;
}
html:not(.light-mode) .lesson-topbar {
  background: rgba(2,5,10,0.98) !important;
  border-bottom-color: rgba(6,182,212,0.08) !important;
  box-shadow: 0 1px 24px rgba(0,0,0,0.9) !important;
}
html:not(.light-mode) .t-name  { color: #e2e8f0 !important; }
html:not(.light-mode) .t-sub   { color: #475569 !important; }
html:not(.light-mode) .topbar-breadcrumb { color: #475569 !important; }
html:not(.light-mode) .bc-active { color: #e2e8f0 !important; }
html:not(.light-mode) .topbar-btn { color: #475569 !important; }
html:not(.light-mode) .topbar-btn:hover { background: rgba(255,255,255,0.04) !important; color: #e2e8f0 !important; }
html:not(.light-mode) .sidebar-toggle {
  background: #0a0d15 !important;
  border-color: rgba(255,255,255,0.07) !important;
  color: #475569 !important;
}
html:not(.light-mode) .topbar-progress-pill {
  background: #0a0d15 !important;
  border-color: rgba(255,255,255,0.07) !important;
  color: #94a3b8 !important;
}
html:not(.light-mode) .lesson-sidebar {
  background: #03060d !important;
  border-right-color: rgba(6,182,212,0.07) !important;
}
html:not(.light-mode) .sb-course-title { color: #e2e8f0 !important; }
html:not(.light-mode) .sb-progress-wrap {
  background: #070a12 !important;
  border-color: rgba(255,255,255,0.06) !important;
}
html:not(.light-mode) .sb-search {
  background: #070a12 !important;
  border-color: rgba(255,255,255,0.07) !important;
}
html:not(.light-mode) .sb-search input { color: #e2e8f0 !important; }
html:not(.light-mode) .lesson-main { background: #020508 !important; }
html:not(.light-mode) .video-card {
  background: #07090f !important;
  border-color: rgba(255,255,255,0.06) !important;
  box-shadow: 0 8px 40px rgba(0,0,0,0.7) !important;
}
html:not(.light-mode) .video-title { color: #f1f5f9 !important; }
html:not(.light-mode) .lesson-tabs { background: #07090f !important; border-color: rgba(255,255,255,0.06) !important; }
html:not(.light-mode) .tab-btn { color: #475569 !important; }
html:not(.light-mode) .tab-btn.active { color: #06B6D4 !important; }
html:not(.light-mode) .bg-blob { opacity: 0.04 !important; }
html:not(.light-mode) .bg-hex-grid { opacity: 0.015 !important; }


/* ═══════════════════════════════════════════════════
   AUTH.HTML — TRUE NIGHT
   ═══════════════════════════════════════════════════ */
html:not(.light-mode) .auth-page,
html:not(.light-mode) .auth-bg {
  background: transparent !important;
}
html:not(.light-mode) .auth-card,
html:not(.light-mode) .auth-panel,
html:not(.light-mode) [class*="auth-form"] {
  background: #07090f !important;
  border-color: rgba(255,255,255,0.07) !important;
  color: #e2e8f0 !important;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8) !important;
}
html:not(.light-mode) input[type="text"],
html:not(.light-mode) input[type="email"],
html:not(.light-mode) input[type="password"],
html:not(.light-mode) input[type="number"],
html:not(.light-mode) input[type="tel"],
html:not(.light-mode) select,
html:not(.light-mode) textarea {
  background: #0a0d18 !important;
  color: #e2e8f0 !important;
  border-color: rgba(255,255,255,0.1) !important;
}
html:not(.light-mode) input::placeholder,
html:not(.light-mode) textarea::placeholder { color: #334155 !important; }
html:not(.light-mode) label { color: #94a3b8 !important; }


/* ═══════════════════════════════════════════════════
   DASHBOARD.HTML — TRUE NIGHT
   ═══════════════════════════════════════════════════ */
html:not(.light-mode) .main    { background: transparent !important; }
html:not(.light-mode) .content { background: transparent !important; }
html:not(.light-mode) .topbar {
  background: #03060d !important;
  border-color: rgba(6,182,212,0.08) !important;
  box-shadow: 0 1px 20px rgba(0,0,0,0.8) !important;
}
html:not(.light-mode) .topbar-title { color: #e2e8f0 !important; }
html:not(.light-mode) .topbar-actions button {
  background: #0a0d18 !important;
  border-color: rgba(255,255,255,0.08) !important;
  color: #94a3b8 !important;
}
html:not(.light-mode) .table-card {
  background: #03060d !important;
  border-color: rgba(255,255,255,0.05) !important;
  box-shadow: 0 4px 24px rgba(0,0,0,0.6) !important;
}
html:not(.light-mode) th {
  background: #070a12 !important;
  color: #475569 !important;
  border-color: rgba(255,255,255,0.05) !important;
}
html:not(.light-mode) td { color: #94a3b8 !important; border-color: rgba(255,255,255,0.04) !important; }
html:not(.light-mode) tr:hover td { background: rgba(6,182,212,0.03) !important; }
html:not(.light-mode) .table-search input {
  background: #0a0d18 !important;
  border-color: rgba(255,255,255,0.08) !important;
  color: #e2e8f0 !important;
}
html:not(.light-mode) .course-admin-card {
  background: #07090f !important;
  border-color: rgba(255,255,255,0.05) !important;
}
html:not(.light-mode) .course-admin-title { color: #e2e8f0 !important; }
html:not(.light-mode) .course-admin-meta  { color: #475569 !important; }
html:not(.light-mode) .quiz-preview-q {
  background: #070a12 !important;
  border-color: rgba(255,255,255,0.06) !important;
}
html:not(.light-mode) .quiz-preview-q-text { color: #e2e8f0 !important; }
html:not(.light-mode) .quiz-preview-opts li {
  background: #0a0d18 !important;
  border-color: rgba(255,255,255,0.06) !important;
}
html:not(.light-mode) .stat-card {
  background: #07090f !important;
  border-color: rgba(255,255,255,0.05) !important;
}
html:not(.light-mode) .stat-label { color: #475569 !important; }
html:not(.light-mode) .stat-val   { color: #e2e8f0 !important; }


/* ═══════════════════════════════════════════════════
   LIGHT MODE OVERRIDES (keep pages usable in light)
   ═══════════════════════════════════════════════════ */
:root.light-mode { background: #f0f4f8 !important; }
:root.light-mode body { background: #f0f4f8 !important; color: #0f172a !important; }

:root.light-mode .btn-secondary {
  background: rgba(255,255,255,0.9) !important;
  color: #0f172a !important;
  border-color: rgba(15,23,42,0.15) !important;
}
:root.light-mode .nav-links {
  background: rgba(248,250,252,0.97) !important;
  border-color: rgba(15,23,42,0.09) !important;
}
:root.light-mode #particle-canvas { opacity: 0.35 !important; }

:root.light-mode .navbar {
  background: rgba(248,250,252,0.97) !important;
  border-bottom-color: rgba(15,23,42,0.09) !important;
  box-shadow: 0 1px 12px rgba(15,23,42,0.07) !important;
}
:root.light-mode .logo-name { color: #0f172a !important; }
:root.light-mode .logo-sub  { color: #2563EB !important; }
:root.light-mode .nav-link  { color: #374151 !important; }
:root.light-mode .nav-link:hover,
:root.light-mode .nav-link.active { color: #2563EB !important; }
:root.light-mode .btn-ghost { color: #374151 !important; border-color: rgba(15,23,42,0.15) !important; }
:root.light-mode .hamburger span { background: #374151 !important; }

:root.light-mode .hero-section {
  background: linear-gradient(135deg,#e0f2fe 0%,#dbeafe 40%,#ede9fe 100%) !important;
}
:root.light-mode .hero-title { color: #0f172a !important; }
:root.light-mode .hero-sub   { color: #475569 !important; }
:root.light-mode .hero-badge {
  background: rgba(255,255,255,0.8) !important;
  color: #1e40af !important;
  border-color: rgba(37,99,235,0.2) !important;
}

:root.light-mode .pcc {
  background: #ffffff !important;
  border-color: rgba(15,23,42,0.07) !important;
  box-shadow: 0 4px 20px rgba(15,23,42,0.06) !important;
}
:root.light-mode .pcc-body    { background: #ffffff !important; }
:root.light-mode .pcc-title   { color: #0f172a !important; }
:root.light-mode .pcc-desc    { color: #64748b !important; }
:root.light-mode .pcc-detail  { color: #64748b !important; }
:root.light-mode .pcc-updated { color: #94a3b8 !important; }

:root.light-mode section { background: transparent !important; }
:root.light-mode .section-title { color: #0f172a !important; }
:root.light-mode .section-sub   { color: #64748b !important; }

:root.light-mode .filter-chip {
  background: #ffffff !important; color: #374151 !important;
  border-color: rgba(15,23,42,0.12) !important;
}
:root.light-mode .filter-chip.active,
:root.light-mode .filter-chip:hover {
  background: #2563EB !important; color: #fff !important; border-color: #2563EB !important;
}

:root.light-mode .stat-card { background: #ffffff !important; border-color: rgba(15,23,42,0.07) !important; }
:root.light-mode .stat-value, :root.light-mode .stat-num { color: #0f172a !important; }
:root.light-mode .stat-label { color: #64748b !important; }

:root.light-mode .faq-item { background: #ffffff !important; border-color: rgba(15,23,42,0.07) !important; }
:root.light-mode .faq-question { color: #0f172a !important; }
:root.light-mode .faq-answer   { color: #64748b !important; }

:root.light-mode .why-card, :root.light-mode .feature-card, :root.light-mode .result-card {
  background: #ffffff !important; border-color: rgba(15,23,42,0.07) !important; color: #0f172a !important;
}
:root.light-mode .teacher-card { background: #ffffff !important; color: #0f172a !important; }

:root.light-mode ::-webkit-scrollbar-track { background: #e2e8f0 !important; }
:root.light-mode ::-webkit-scrollbar-thumb { background: #94a3b8 !important; }
:root.light-mode ::-webkit-scrollbar-thumb:hover { background: #64748b !important; }

/* Lesson light mode */
:root.light-mode body.lesson-body { background: #f0f4f8 !important; color: #0a1628 !important; }
:root.light-mode .lesson-topbar { background: rgba(255,255,255,0.98) !important; border-bottom-color: #e2e8f0 !important; }
:root.light-mode .lesson-sidebar { background: rgba(255,255,255,0.98) !important; border-right-color: #e2e8f0 !important; }
:root.light-mode .video-card { background: #ffffff !important; border-color: #e2e8f0 !important; }

/* Auth light mode */
:root.light-mode .auth-page { background: linear-gradient(135deg,#e0f2fe 0%,#dbeafe 40%,#ede9fe 100%) !important; }
:root.light-mode .auth-card, :root.light-mode .auth-panel {
  background: rgba(255,255,255,0.95) !important;
  border-color: rgba(15,23,42,0.07) !important;
  color: #0f172a !important;
}
:root.light-mode input[type="text"], :root.light-mode input[type="email"],
:root.light-mode input[type="password"], :root.light-mode input[type="number"],
:root.light-mode select, :root.light-mode textarea {
  background: #f8fafc !important; color: #0f172a !important; border-color: #cbd5e1 !important;
}
:root.light-mode label { color: #374151 !important; }

/* Dashboard light mode */
:root.light-mode .main, :root.light-mode .content { background: #f8fafc !important; }
:root.light-mode .topbar { background: #ffffff !important; border-color: #e2e8f0 !important; }
:root.light-mode .table-card { background: #ffffff !important; border-color: #e2e8f0 !important; }
:root.light-mode th { background: #f8fafc !important; color: #64748b !important; }
:root.light-mode td { color: #0f172a !important; border-color: #f1f5f9 !important; }
:root.light-mode .stat-card { background: #ffffff !important; }