/* ═══════════════════════════════════════════════════════════════
   منصة المهندس محمود عبد الدايم للرياضيات — Design System & Styles
   Premium EdTech Platform — Pure CSS
   ═══════════════════════════════════════════════════════════════ */

/* ── 1. DESIGN TOKENS (CSS Variables) ────────────────────────── */
:root {
  /* ⚡ 30% Primary — Vibrant Modern Orange */
  --primary-50:  #FFF7ED;
  --primary-100: #FFEDD5;
  --primary-200: #FED7AA;
  --primary-300: #FDBA74;
  --primary-400: #FB923C;
  --primary-500: #F97316;
  --primary-600: #EA580C;
  --primary-700: #C2410C;
  --primary-800: #9A3412;
  --primary-900: #7C2D12;
  --primary-gradient: linear-gradient(135deg, #F97316 0%, #EA580C 100%);
  --primary-glow: rgba(249, 115, 22, 0.28);

  /* 🥐 Secondary — Clean Slate & Neutral */
  --secondary-50:  #FFFFFF;
  --secondary-100: #F8FAFC;
  --secondary-200: #F1F5F9;
  --secondary-300: #E2E8F0;
  --secondary-400: #CBD5E1;
  --secondary-500: #94A3B8;
  --secondary-600: #64748B;

  /* ⚡ Accent — Amber & Coral */
  --accent-50:  #FFFBEB;
  --accent-100: #FEF3C7;
  --accent-200: #FDE68A;
  --accent-300: #FCD34D;
  --accent-400: #F59E0B;
  --accent-500: #D97706;
  --accent-600: #B45309;
  --accent-700: #92400E;
  --accent-800: #78350F;
  --accent-gradient: linear-gradient(135deg, #F97316 0%, #EA580C 50%, #F59E0B 100%);
  --copper-gradient: linear-gradient(135deg, #EA580C 0%, #F97316 60%, #FBBF24 100%);
  --shadow-copper: 0 6px 20px rgba(249, 115, 22, 0.28);

  /* 🌑 Luxury Slate / Dark */
  --dark-950: #020617;
  --dark-900: #0F172A;
  --dark-850: #141E33;
  --dark-800: #1E293B;
  --dark-700: #334155;
  --dark-600: #475569;
  --dark-500: #64748B;
  --dark-gradient: linear-gradient(150deg, #0F172A 0%, #1E293B 60%, #0F172A 100%);
  --dark-surface: #0F172A;
  --dark-card: #1E293B;
  --dark-border: rgba(249, 115, 22, 0.18);

  /* Neutral Shades */
  --neutral-50:  #F8FAFC;
  --neutral-100: #F1F5F9;
  --neutral-200: #E2E8F0;
  --neutral-300: #CBD5E1;
  --neutral-400: #94A3B8;
  --neutral-500: #64748B;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1E293B;
  --neutral-900: #0F172A;

  /* Semantic */
  --success: #16A34A;
  --success-light: #DCFCE7;
  --danger: #DC2626;
  --danger-light: #FEE2E2;
  --warning: #F59E0B;
  --warning-light: #FEF3C7;
  --info: #0284C7;
  --info-light: #E0F2FE;

  /* Base Surfaces — Clean White */
  --bg: #F8FAFC;
  --bg-alt: #F1F5F9;
  --surface: #FFFFFF;
  --surface-warm: #FFFFFF;
  --surface-hover: #F8FAFC;
  --bg-surface: #FFFFFF; /* fix: was undefined in light mode, only set under [data-theme="dark"] — caused transparent cards on course/activation pages */

  /* Typography Colors */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-inverse: #FFFFFF;
  --text-copper: #EA580C;
  --text-gold: #F97316;
  --text-green: #16A34A;

  /* Borders */
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --border-copper: rgba(249, 115, 22, 0.3);
  --border-green: rgba(22, 163, 74, 0.3);

  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.07);
  --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.09);
  --shadow-lg: 0 12px 36px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 20px 60px rgba(15, 23, 42, 0.16);
  --shadow-glow: 0 0 32px rgba(249, 115, 22, 0.25);
  --shadow-accent: 0 6px 24px rgba(249, 115, 22, 0.32);

  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-2xl: 40px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Typography */
  --font-ar: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Z-index */
  --z-dropdown: 100;
  --z-header: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Container */
  --container-max: 1280px;
  --header-height: 76px;
}


/* ── 1b. DARK MODE TOKENS ────────────────────────────────────── */
[data-theme="dark"] {
  /* Backgrounds */
  --bg:           #0B1120;
  --bg-alt:       #0F172A;
  --surface:      #1E293B;
  --surface-warm: #1E293B;
  --surface-hover:#334155;

  /* Text */
  --text-primary:   #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted:     #94A3B8;
  --text-inverse:   #0F172A;
  --text-green:     #22C55E;
  --text-gold:      #FBBF24;
  --text-copper:    #FB923C;

  /* Borders */
  --border:        #334155;
  --border-light:  #1E293B;
  --border-copper: rgba(249,115,22,0.30);
  --border-green:  rgba(34,197,94,0.35);

  /* Shadows — softer on dark */
  --shadow-xs: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.5);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.6);
  --shadow-lg: 0 12px 36px rgba(0,0,0,0.7);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.8);

  /* Primary palette — vibrant orange for dark bg */
  --primary-50:  #431407;
  --primary-100: #7C2D12;
  --primary-200: #9A3412;
  --primary-300: #C2410C;
  --primary-400: #EA580C;
  --primary-500: #F97316;
  --primary-600: #FB923C;
  --primary-700: #FDBA74;

  /* Secondary */
  --secondary-200: #1E293B;
  --secondary-300: #334155;
  --secondary-400: #475569;
  --secondary-500: #64748B;

  /* Accent amber/gold */
  --accent-50:  #451A03;
  --accent-100: #78350F;
  --accent-200: #92400E;
  --accent-300: #FBBF24;
  --accent-400: #F59E0B;
  --accent-500: #D97706;
  --accent-600: #B45309;

  /* bg-surface alias */
  --bg-surface: #1E293B;
}

/* ── THEME TOGGLE BUTTON — Modern Luxury Pill ────────────────── */
.theme-toggle-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.theme-toggle-track {
  position: relative;
  width: 58px;
  height: 32px;
  border-radius: 99px;
  background: rgba(15, 23, 42, 0.08);
  border: 1.5px solid rgba(15, 23, 42, 0.14);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 7px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.theme-toggle-btn:hover .theme-toggle-track {
  border-color: #F97316;
  box-shadow: 0 0 12px rgba(249, 115, 22, 0.28), inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  pointer-events: none;
  transition: all 0.3s ease;
}

.sun-icon {
  color: #EA580C;
  opacity: 1;
  transform: scale(1);
}

.moon-icon {
  color: #94A3B8;
  opacity: 0.45;
  transform: scale(0.85);
}

.theme-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FFFFFF 0%, #FFF7ED 100%);
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.35), 0 1px 2px rgba(0, 0, 0, 0.1);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease;
  z-index: 2;
}

/* Dark mode state */
[data-theme="dark"] .theme-toggle-track {
  background: rgba(30, 41, 59, 0.85);
  border-color: rgba(249, 115, 22, 0.35);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.4), 0 0 14px rgba(249, 115, 22, 0.15);
}

[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(26px);
  background: linear-gradient(135deg, #F97316 0%, #EA580C 100%);
  box-shadow: 0 0 12px rgba(249, 115, 22, 0.7), 0 2px 6px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .sun-icon {
  opacity: 0.35;
  transform: scale(0.85);
  color: #64748B;
}

[data-theme="dark"] .moon-icon {
  opacity: 1;
  transform: scale(1);
  color: #FFFFFF;
}

/* ── GLOBAL TRANSITION for theme switch ──────────────────────── */
body, body * {
  transition-property: background-color, color, border-color, box-shadow;
  transition-duration: 280ms;
  transition-timing-function: var(--ease-out);
}
/* exclude elements that have their own transitions */
.btn, .nav-link, .card, .mobile-nav-link, .hero-floating-card,
.hero-main-card, .progress-fill, .feature-card, .course-card,
.theme-toggle-btn, .theme-toggle-btn::before {
  transition-duration: var(--duration-normal) !important;
}

/* ── 2. RESET & BASE ─────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-ar);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }

::selection {
  background: var(--primary-100);
  color: var(--primary-800);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--secondary-200); }
::-webkit-scrollbar-thumb { background: var(--secondary-500); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--neutral-400); }


/* ── 3. TYPOGRAPHY ───────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-ar);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }

p { color: var(--text-secondary); line-height: 1.8; }

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--primary-50);
  color: var(--primary-500);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}
.section-badge .icon { font-size: 1rem; }

.section-title {
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
}

.text-center { text-align: center; }
.text-center .section-subtitle { margin-inline: auto; }

.gradient-text {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-300), var(--accent-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


/* ── 4. LAYOUT ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.page-section {
  padding: var(--space-4xl) 0;
}

.page-section:nth-child(even) {
  background: var(--bg-alt);
}


/* ── 5. HEADER ───────────────────────────────────────────────── */
/* ── HEADER — Floating Pill Style (~85% Width) ──────────────── */
.header {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: min(85%, 1240px);
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(249, 115, 22, 0.16);
  border-radius: 99px;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
  transition: all var(--duration-normal) var(--ease-out);
}
.header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-color: rgba(249, 115, 22, 0.28);
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.13);
  top: 10px;
}

/* Header — Light: nav text should be dark */
.header .nav-link {
  color: var(--dark-600);
}
.header .nav-link:hover {
  color: var(--primary-500);
  background: rgba(249, 115, 22, 0.10);
}
.header .nav-link.active {
  color: var(--primary-500);
  background: rgba(249, 115, 22, 0.13);
}

/* Header Logo text — dark on light */
.header .header-logo-text { color: var(--dark-800); }
.header .header-logo-sub  { color: var(--primary-500); }

/* Mobile btn — dark on light */
.header .mobile-menu-btn {
  color: var(--dark-700);
  background: rgba(15, 23, 42, 0.06);
}
.header .mobile-menu-btn:hover {
  background: rgba(249, 115, 22, 0.12);
  color: var(--primary-500);
}

/* ── HEADER — Dark Mode (Luxury Glassmorphism & Orange Accents) ── */
[data-theme="dark"] .header {
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(20px) saturate(190%);
  -webkit-backdrop-filter: blur(20px) saturate(190%);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 99px;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(249, 115, 22, 0.08);
}
[data-theme="dark"] .header.scrolled {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(249, 115, 22, 0.28);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.70), 0 0 24px rgba(249, 115, 22, 0.14);
}
[data-theme="dark"] .header .nav-link {
  color: #E2E8F0;
}
[data-theme="dark"] .header .nav-link:hover {
  color: #FB923C;
  background: rgba(249, 115, 22, 0.14);
}
[data-theme="dark"] .header .nav-link.active {
  color: #FB923C;
  background: rgba(249, 115, 22, 0.18);
}
[data-theme="dark"] .header .header-logo-text { 
  color: #FFFFFF; 
}
[data-theme="dark"] .header .header-logo-sub { 
  color: #FB923C; 
}
[data-theme="dark"] .header .mobile-menu-btn {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
[data-theme="dark"] .header .mobile-menu-btn:hover {
  background: rgba(249, 115, 22, 0.22);
  border-color: rgba(249, 115, 22, 0.45);
  color: #FB923C;
}

/* ── Header btn-outline in light / dark mode ─────────────────── */
.header .btn-outline {
  color: var(--primary-600);
  border-color: var(--primary-500);
}
[data-theme="dark"] .header .btn-outline {
  color: #F8FAFC;
  border-color: rgba(249, 115, 22, 0.5);
  background: rgba(249, 115, 22, 0.08);
}
[data-theme="dark"] .header .btn-outline:hover {
  background: rgba(249, 115, 22, 0.18);
  border-color: #F97316;
  color: #FFFFFF;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 18px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10;
  text-decoration: none;
  min-width: 0;
  flex-shrink: 1;
}

.header-logo-icon {
  width: 44px;
  height: 44px;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-spring);
}
.header-logo:hover .header-logo-icon {
  transform: scale(1.08) rotate(-4deg);
}

.header-logo-svg {
  width: 42px;
  height: 42px;
  display: block;
}

.header-logo-text {
  font-weight: 900;
  font-size: clamp(0.78rem, 3.4vw, 1.15rem);
  color: var(--dark-800);
  line-height: 1.22;
  white-space: normal;
  overflow: visible;
  word-break: break-word;
  max-width: clamp(150px, 46vw, 320px);
}
.header-logo-sub {
  font-size: clamp(0.6rem, 2vw, 0.74rem);
  color: var(--primary-600);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 768px) {
  .header {
    top: 8px;
    width: calc(100% - 16px);
    border-radius: 20px;
    padding: 0 10px;
  }
  .header .container {
    padding: 0 4px;
  }
  .header-logo-icon {
    width: 36px;
    height: 36px;
  }
  .header-logo-svg {
    width: 34px;
    height: 34px;
  }
}

@media (max-width: 400px) {
  /* Fix: teacher name was being cut off with "…" on narrow phones.
     Now it wraps cleanly onto a second line instead of truncating. */
  .header-logo-text {
    font-size: 0.74rem;
    max-width: 150px;
  }
  .header-logo-sub {
    display: none; /* hide subtitle on very narrow screens so the name has room to breathe */
  }
}

/* Nav */
.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--dark-600);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
  transition: all var(--duration-fast) var(--ease-out);
  z-index: 10;
}
.mobile-menu-btn:hover { background: rgba(245, 158, 11, 0.2); color: var(--accent-300); }

/* User Avatar (logged in) */
.header-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid var(--accent-400);
  transition: transform var(--duration-fast) var(--ease-spring);
  position: relative;
}
.header-avatar:hover { transform: scale(1.08); }

.avatar-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--duration-normal) var(--ease-out);
  overflow: hidden;
  z-index: var(--z-dropdown);
}
.avatar-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-header {
  padding: 16px;
  border-bottom: 1px solid var(--border-light);
}
.dropdown-name { font-weight: 700; font-size: 0.95rem; }
.dropdown-email { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
  cursor: pointer;
  width: 100%;
  text-align: right;
}
.dropdown-item:hover { background: var(--primary-50); color: var(--primary-500); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background: var(--danger-light); }
.dropdown-divider { height: 1px; background: var(--border-light); }


/* ── Mobile Menu Overlay ─────────────────────────────────────── */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,31,33,0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}
.mobile-menu-overlay.show { opacity: 1; visibility: visible; }

.mobile-menu {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--surface);
  z-index: calc(var(--z-overlay) + 1);
  transition: right var(--duration-slow) var(--ease-out);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}
.mobile-menu.show { right: 0; }

.mobile-menu-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-menu-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-secondary);
}
.mobile-menu-close:hover { background: var(--neutral-50); }

.mobile-menu-nav {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}
.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
  margin-bottom: 4px;
}
.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--primary-50);
  color: var(--primary-500);
}
.mobile-nav-link .icon { font-size: 1.2rem; width: 24px; text-align: center; }

.mobile-menu-footer {
  padding: 16px;
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 10px;
}


/* ── 6. BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-ar);
  font-size: 0.95rem;
  font-weight: 700;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to left, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--duration-fast);
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, #F97316 0%, #EA580C 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(249, 115, 22, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(249, 115, 22, 0.50);
  background: linear-gradient(135deg, #EA580C 0%, #C2410C 100%);
}
.btn-primary:active { transform: translateY(0); }

.btn-accent {
  background: linear-gradient(135deg, #B45309 0%, #D97706 50%, #F59E0B 100%);
  color: #FFFFFF;
  font-weight: 800;
  box-shadow: 0 4px 18px rgba(217, 119, 6, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(217, 119, 6, 0.5);
  background: linear-gradient(135deg, #92400E 0%, #B45309 50%, #D97706 100%);
}

.btn-dark {
  background: #0F172A;
  color: #F59E0B;
  border: 1px solid rgba(245, 158, 11, 0.3);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.3);
}
.btn-dark:hover {
  background: #1E293B;
  color: #FBBF24;
  border-color: #F59E0B;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-500);
  border: 2px solid var(--primary-500);
}
.btn-outline:hover {
  background: var(--primary-50);
  border-color: var(--primary-600);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { background: rgba(15, 23, 42, 0.06); color: var(--text-primary); }

.btn-white {
  background: #FFFFFF;
  color: var(--primary-500);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--accent-500);
}

.btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-xl { padding: 18px 44px; font-size: 1.1rem; border-radius: var(--radius-lg); }
.btn-block { width: 100%; }
.btn-icon { width: 42px; height: 42px; padding: 0; border-radius: var(--radius-sm); }
.btn-icon.sm { width: 36px; height: 36px; }

.btn:disabled, .btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}


/* ── 7. CARDS ────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-out);
  overflow: hidden;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.card-body { padding: var(--space-lg); }
.card-flat { box-shadow: none; }
.card-flat:hover { box-shadow: var(--shadow-sm); transform: none; }


/* ── 8. BADGES ───────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
}
.badge-primary { background: var(--primary-50); color: var(--primary-600); border: 1px solid var(--primary-200); }
.badge-accent { background: var(--accent-100); color: var(--accent-700); border: 1px solid var(--accent-200); }
.badge-copper { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }
.badge-dark { background: #0F172A; color: #F59E0B; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-neutral { background: var(--neutral-100); color: var(--neutral-700); }


/* ── 9. INPUTS & FORMS ───────────────────────────────────────── */
.form-group {
  margin-bottom: var(--space-lg);
}
.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.form-input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--surface);
  transition: all var(--duration-fast) var(--ease-out);
  outline: none;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:hover { border-color: var(--secondary-500); }
.form-input:focus {
  border-color: var(--primary-400);
  box-shadow: 0 0 0 4px var(--primary-50);
}
.form-input.error { border-color: var(--danger); }
.form-input.error:focus { box-shadow: 0 0 0 4px var(--danger-light); }
.form-hint { font-size: 0.8rem; color: var(--text-muted); margin-top: 6px; }
.form-error { font-size: 0.8rem; color: var(--danger); margin-top: 6px; }

.form-input-icon-wrapper {
  position: relative;
}
.form-input-icon-wrapper .form-input {
  padding-right: 46px;
}
.form-input-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.form-select {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--surface);
  appearance: none;
  cursor: pointer;
  outline: none;
  transition: all var(--duration-fast) var(--ease-out);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238A9296' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 14px center;
  background-size: 18px;
}
.form-select:focus {
  border-color: var(--primary-400);
  box-shadow: 0 0 0 4px var(--primary-50);
}


/* ── 10. PROGRESS BAR ────────────────────────────────────────── */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--secondary-300);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-500), var(--primary-300));
  border-radius: var(--radius-full);
  transition: width var(--duration-slow) var(--ease-out);
  position: relative;
}
.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}
.progress-bar.sm { height: 5px; }
.progress-bar.lg { height: 12px; }


/* ── 11. SKELETON LOADING ────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--secondary-300) 25%, var(--secondary-200) 50%, var(--secondary-300) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}
.skeleton-text { height: 16px; margin-bottom: 10px; }
.skeleton-title { height: 24px; width: 60%; margin-bottom: 14px; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: var(--radius-full); }
.skeleton-card { height: 280px; border-radius: var(--radius-lg); }
.skeleton-image { height: 180px; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }


/* ── 12. EMPTY STATE ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
}
.empty-state-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  background: var(--primary-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary-400);
  margin: 0 auto var(--space-lg);
}
.empty-state h3 { margin-bottom: var(--space-sm); }
.empty-state p { color: var(--text-muted); max-width: 400px; margin: 0 auto var(--space-lg); }


/* ═══════════════════════════════════════════════════════════════
   PAGE: HERO SECTION — Dynamic 4-Color Luxury Aesthetics
   ═══════════════════════════════════════════════════════════════ */
/* ── HERO — Light Mode (default) ─────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  /* Light: warm beige with subtle green/gold radials */
  background:
    radial-gradient(circle at 85% 20%, rgba(217,119,6,0.10) 0%, transparent 45%),
    radial-gradient(circle at 15% 80%, rgba(27,107,58,0.14) 0%, transparent 50%),
    linear-gradient(155deg, #EFE9DE 0%, #F7F4EE 50%, #E8F2EC 100%);
  color: var(--text-primary);
  padding-top: calc(var(--header-height) + 20px);
  padding-bottom: var(--space-3xl);
  transition: background var(--duration-slow) var(--ease-out),
              color var(--duration-slow);
}

/* Hero — Dark Mode */
[data-theme="dark"] .hero {
  background:
    radial-gradient(circle at 85% 20%, rgba(217,119,6,0.13) 0%, transparent 45%),
    radial-gradient(circle at 15% 80%, rgba(27,107,58,0.20) 0%, transparent 50%),
    linear-gradient(155deg, #0E1509 0%, #131A0D 50%, #111808 100%);
  color: #F0EDE6;
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.08;
  filter: blur(40px);
}
[data-theme="dark"] .hero-shape { opacity: 0.12; }
.hero-shape:nth-child(1) {
  width: 600px; height: 600px;
  background: var(--primary-500);
  top: -200px; left: -200px;
  animation: float-slow 20s infinite;
}
.hero-shape:nth-child(2) {
  width: 450px; height: 450px;
  background: var(--accent-500);
  bottom: -100px; right: -100px;
  animation: float-slow 25s infinite reverse;
}
.hero-shape:nth-child(3) {
  width: 300px; height: 300px;
  background: var(--accent-300);
  top: 40%; left: 60%;
  animation: float-slow 18s infinite 3s;
}

.hero-math-symbols {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.math-symbol {
  position: absolute;
  font-size: 2.2rem;
  color: var(--accent-400);
  opacity: 0.15;
  font-weight: 900;
  font-family: var(--font-en);
  animation: float-symbol 15s infinite;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 650px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  /* Light mode: white/beige pill with green border */
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(234, 88, 12, 0.35);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-600);
  margin-bottom: var(--space-lg);
  box-shadow: 0 4px 18px rgba(234, 88, 12, 0.12);
  backdrop-filter: blur(12px);
  animation: fadeInUp 0.8s var(--ease-out);
}
[data-theme="dark"] .hero-badge {
  background: rgba(15, 23, 42, 0.75);
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--accent-300);
  box-shadow: 0 4px 18px rgba(0,0,0,0.3);
}
.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-400);
  box-shadow: 0 0 10px var(--accent-400);
  animation: pulse-dot 2s infinite;
}

.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  font-weight: 900;
  animation: fadeInUp 0.8s var(--ease-out) 0.1s both;
}
[data-theme="dark"] .hero h1 { color: #F0EDE6; }

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
}
[data-theme="dark"] .hero-description { color: #CBD5E1; }

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s var(--ease-out) 0.3s both;
}

.hero-stats-row {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  padding: 16px 24px;
  /* Light mode */
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(234, 88, 12, 0.20);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  width: fit-content;
  animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
  box-shadow: 0 4px 20px rgba(15,23,42,0.08);
}
[data-theme="dark"] .hero-stats-row {
  background: rgba(15, 23, 42, 0.65);
  border-color: rgba(255,255,255,0.08);
  box-shadow: none;
}
.hero-stat {
  text-align: center;
}
.hero-stat-num {
  font-size: 1.85rem;
  font-weight: 900;
  color: var(--primary-500);
  font-family: var(--font-en);
}
[data-theme="dark"] .hero-stat-num { color: var(--accent-400); }

.hero-stat-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 700;
}
[data-theme="dark"] .hero-stat-label { color: #94A3B8; }

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(15, 23, 42, 0.18);
}
[data-theme="dark"] .hero-stat-divider { background: rgba(255,255,255,0.15); }

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: fadeInScale 1s var(--ease-out) 0.4s both;
}

.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 440px;
}

/* Hero main card — light mode: crisp white card */
.hero-main-card {
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: 0 24px 60px rgba(15,23,42,0.14), 0 0 30px rgba(27,107,58,0.10);
  border: 1px solid rgba(27,107,58,0.20);
  backdrop-filter: blur(16px);
  position: relative;
  z-index: 2;
  color: var(--text-primary);
}
[data-theme="dark"] .hero-main-card {
  background: rgba(15,23,42,0.85);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 30px rgba(27,107,58,0.2);
  border-color: rgba(245,158,11,0.35);
  color: white;
}

.hero-main-card .card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: var(--space-lg);
}
.hero-main-card .card-avatar {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.4);
}
.hero-main-card .card-info h4 { font-size: 1.05rem; color: var(--text-primary); margin-bottom: 2px; }
[data-theme="dark"] .hero-main-card .card-info h4 { color: #FFFFFF; }
.hero-main-card .card-info span { font-size: 0.82rem; color: var(--primary-500); font-weight: 600; }
[data-theme="dark"] .hero-main-card .card-info span { color: var(--accent-300); }

.hero-main-card .card-content {
  background: rgba(27,107,58,0.07);
  border-radius: var(--radius-md);
  border: 1px solid rgba(27,107,58,0.18);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}
[data-theme="dark"] .hero-main-card .card-content {
  background: rgba(30,41,59,0.8);
  border-color: rgba(255,255,255,0.08);
}
.hero-main-card .math-preview {
  font-family: var(--font-en);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--primary-500);
  text-align: center;
  direction: ltr;
  letter-spacing: 1px;
  text-shadow: 0 0 16px rgba(27,107,58,0.25);
}
[data-theme="dark"] .hero-main-card .math-preview {
  color: var(--accent-300);
  text-shadow: 0 0 16px rgba(245,158,11,0.4);
}
.hero-main-card .card-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
[data-theme="dark"] .hero-main-card .card-progress-label { color: #CBD5E1; }

.hero-floating-card {
  position: absolute;
  background: rgba(255,255,255,0.92);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  box-shadow: 0 10px 28px rgba(15,23,42,0.14);
  border: 1px solid rgba(27,107,58,0.18);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  z-index: 3;
  animation: float-card 6s infinite;
}
[data-theme="dark"] .hero-floating-card {
  background: rgba(15,23,42,0.9);
  box-shadow: 0 16px 36px rgba(0,0,0,0.4);
  border-color: rgba(245,158,11,0.35);
  color: #FFFFFF;
}
.hero-floating-card .fc-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.hero-floating-card:nth-child(2) {
  top: 10%;
  left: -30px;
}
.hero-floating-card:nth-child(2) .fc-icon {
  background: rgba(22, 163, 74, 0.25);
  color: #4ADE80;
  border: 1px solid rgba(74, 222, 128, 0.4);
}
.hero-floating-card:nth-child(3) {
  bottom: 15%;
  right: -20px;
  animation-delay: 2s;
}
.hero-floating-card:nth-child(3) .fc-icon {
  background: rgba(217, 119, 6, 0.25);
  color: #FBBF24;
  border: 1px solid rgba(251, 191, 36, 0.4);
}


/* ═══════════════════════════════════════════════════════════════
   PAGE: STATS SECTION
   ═══════════════════════════════════════════════════════════════ */
.stats-section {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-500));
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  color: white;
}
.stat-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto var(--space-md);
  backdrop-filter: blur(10px);
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  font-family: var(--font-en);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.9rem;
  opacity: 0.85;
  font-weight: 500;
}


/* ═══════════════════════════════════════════════════════════════
   PAGE: FEATURES SECTION (High-Contrast Dark Elegance)
   ═══════════════════════════════════════════════════════════════ */
.features-section {
  background: linear-gradient(160deg, #070B14 0%, #0B1220 50%, #0A1F16 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: rgba(15, 23, 42, 0.75);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-lg);
  border: 1px solid rgba(245, 158, 11, 0.25);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  transition: all var(--duration-normal) var(--ease-out);
  text-align: center;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #9A3412, #D97706, #F59E0B);
  transform: scaleX(0);
  transition: transform var(--duration-slow) var(--ease-out);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 24px rgba(217, 119, 6, 0.25);
  border-color: rgba(245, 158, 11, 0.5);
}

.feature-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.9rem;
  margin: 0 auto var(--space-lg);
  transition: transform var(--duration-normal) var(--ease-spring);
}
.feature-card:hover .feature-icon { transform: scale(1.1) rotate(-5deg); }

.feature-icon.green {
  background: rgba(22, 163, 74, 0.2);
  color: #4ADE80;
  border: 1px solid rgba(74, 222, 128, 0.35);
  box-shadow: 0 0 20px rgba(22, 163, 74, 0.2);
}
.feature-icon.yellow {
  background: rgba(217, 119, 6, 0.2);
  color: #FBBF24;
  border: 1px solid rgba(251, 191, 36, 0.35);
  box-shadow: 0 0 20px rgba(217, 119, 6, 0.2);
}
.feature-icon.blue {
  background: rgba(2, 132, 199, 0.2);
  color: #38BDF8;
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 0 20px rgba(2, 132, 199, 0.2);
}

.feature-card h3 { margin-bottom: var(--space-sm); font-size: 1.2rem; color: #FFFFFF; font-weight: 800; }
.feature-card p { font-size: 0.92rem; color: #94A3B8; line-height: 1.7; }


/* ═══════════════════════════════════════════════════════════════
   PAGE: COURSES SECTION / COURSE CARDS
   ═══════════════════════════════════════════════════════════════ */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.course-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
  position: relative;
}
.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-400);
}

.course-card-image {
  height: 190px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #070B14 0%, #0F172A 60%, #0A2216 100%);
  border-bottom: 2px solid rgba(217, 119, 6, 0.25);
}
.course-card-image img,
.course-card-image .course-img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.course-img-placeholder {
  background: linear-gradient(135deg, #070B14 0%, #0F172A 60%, #0A2216 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.2rem;
  color: var(--accent-400);
  text-shadow: 0 0 24px rgba(245, 158, 11, 0.45);
}

.course-card-badge {
  position: absolute;
  top: 14px;
  right: 14px;
}

.course-card-body {
  padding: var(--space-lg);
  background: #FFFFFF;
}
.course-card-grade {
  font-size: 0.78rem;
  font-weight: 800;
  color: #92400E;
  background: #FEF3C7;
  border: 1px solid #FDE68A;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
}

.course-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-light);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}
.course-card-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-light);
  background: var(--surface-warm);
}

.course-price {
  font-size: 1.25rem;
  font-weight: 900;
  color: #D97706;
}
.course-price .currency { font-size: 0.8rem; font-weight: 700; }
.course-price-free { color: var(--success); font-weight: 900; }

/* Courses Page Filter */
.courses-filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}
.filter-search {
  flex: 1;
  min-width: 250px;
  position: relative;
}
.filter-search input {
  width: 100%;
  padding: 14px 18px 14px 50px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--duration-fast);
}
.filter-search input:focus { border-color: var(--accent-500); box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.15); }
.filter-search .search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
}
.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-chip {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  transition: all var(--duration-fast);
  cursor: pointer;
}
.filter-chip:hover { border-color: var(--accent-400); color: var(--accent-600); }
.filter-chip.active {
  background: #0F172A;
  color: #FBBF24;
  border-color: #D97706;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.25);
}


/* ═══════════════════════════════════════════════════════════════
   PAGE: COURSE DETAILS
   ═══════════════════════════════════════════════════════════════ */
.course-details-hero {
  background: linear-gradient(160deg, var(--primary-50), var(--secondary-200), var(--accent-50));
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
}
.course-details-hero .container {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-2xl);
  align-items: start;
}

.course-details-info h1 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin-bottom: var(--space-md); }
.course-details-info .course-desc-hero {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}
.course-details-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}
.course-detail-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
}
.course-detail-meta-item .icon {
  color: var(--primary-400);
}

/* Course Sidebar Card */
.course-sidebar-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
  border: 1px solid var(--border-light);
}
.course-sidebar-card .price-section {
  padding: var(--space-lg);
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}
.course-sidebar-card .price-big {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary-500);
}
.course-sidebar-card .price-big .currency {
  font-size: 1rem;
  font-weight: 600;
}
.course-sidebar-card .price-section .btn { margin-top: var(--space-md); }
.course-sidebar-card .sidebar-details {
  padding: var(--space-lg);
}
.sidebar-detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
}
.sidebar-detail-row:last-child { border-bottom: none; }
.sidebar-detail-row .label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}
.sidebar-detail-row .value { font-weight: 700; }

/* Course Content Tabs */
.course-content-section {
  padding: var(--space-3xl) 0;
}
.course-content-section .container {
  max-width: 900px;
}

.course-tabs {
  display: flex;
  gap: 10px;
  background: #ffffff;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 16px;
  padding: 8px;
  margin-bottom: var(--space-xl);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.07);
  position: sticky;
  top: calc(var(--header-height) + 10px);
  z-index: 5;
}
.course-tab {
  flex: 1;
  padding: 13px 16px;
  text-align: center;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  font-size: 0.92rem;
  font-weight: 800;
  color: #475569;
  transition: all var(--duration-fast);
  cursor: pointer;
}
.course-tab:hover {
  color: #166534;
  background: #f0fdf4;
  border-color: #bbf7d0;
}
.course-tab.active {
  background: linear-gradient(135deg, #166534, #15803d);
  color: #ffffff;
  border-color: rgba(22, 101, 52, 0.35);
  box-shadow: 0 8px 20px rgba(22, 101, 52, 0.22);
}

/* Curriculum */
.curriculum-package {
  margin-bottom: var(--space-lg);
}
.package-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast);
}
.package-header:hover { border-color: var(--primary-200); }
.package-header.open {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-color: var(--primary-200);
  background: var(--primary-50);
}
.package-header h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
}
.package-header .lesson-count {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}
.package-header .toggle-icon {
  transition: transform var(--duration-normal) var(--ease-out);
  color: var(--text-muted);
}
.package-header.open .toggle-icon { transform: rotate(180deg); }

.package-lessons {
  border: 1px solid var(--border-light);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--duration-slow) var(--ease-out);
}
.package-lessons.open { max-height: 2000px; }

.lesson-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  transition: background var(--duration-fast);
  cursor: pointer;
}
.lesson-item:last-child { border-bottom: none; }
.lesson-item:hover { background: var(--secondary-50); }

.lesson-item .lesson-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.lesson-icon.video { background: var(--info-light); color: var(--info); }
.lesson-icon.quiz { background: var(--accent-50); color: var(--accent-500); }
.lesson-icon.pdf { background: var(--danger-light); color: var(--danger); }

.lesson-item .lesson-info { flex: 1; }
.lesson-item .lesson-title { font-size: 0.92rem; font-weight: 600; }
.lesson-item .lesson-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

.lesson-item .lesson-status { font-size: 1.1rem; }
.lesson-item .lesson-status.completed { color: var(--success); }
.lesson-item .lesson-status.locked { color: var(--text-muted); }


/* ═══════════════════════════════════════════════════════════════
   PAGE: LESSON VIEW (Dark Theater Mode & Copper/Emerald Details)
   ═══════════════════════════════════════════════════════════════ */
/* ═══════════════════════════════════════════════════════════════
   PAGE: LESSON (index-lesson)
   Mobile-First · Accordion Sidebar · Professional Design
   ═══════════════════════════════════════════════════════════════ */

/* ── Layout ─────────────────────────────────────────────────── */
.lesson-page {
  padding-top: var(--header-height);
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
  background: var(--bg);
  align-items: start;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.lesson-sidebar {
  background: #0F172A;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-left: 1px solid rgba(255,255,255,0.07);
  z-index: 10;
}

/* Sidebar Header */
.lesson-sidebar-header {
  padding: 20px 18px 14px;
  background: #0A1020;
  border-bottom: 2px solid rgba(217,119,6,0.3);
  flex-shrink: 0;
}
.lsh-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.lsh-back-btn {
  background: rgba(255,255,255,0.08);
  border: none;
  border-radius: 8px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.6);
  flex-shrink: 0;
  transition: all 0.2s;
  padding: 0;
}
.lsh-back-btn:hover { background: rgba(255,255,255,0.15); color: #fff; }
.lsh-close-btn {
  display: none;
  background: rgba(255,255,255,0.08);
  border: none;
  border-radius: 8px;
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  font-weight: 800;
  padding: 0;
  transition: all 0.2s;
  flex-shrink: 0;
  margin-right: auto;
}
.lsh-close-btn:hover {
  background: rgba(239, 68, 68, 0.25);
  color: #ef4444;
}
.lsh-title {
  font-size: 0.92rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  flex: 1;
}
.lesson-sidebar-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.lsp-bar {
  flex: 1;
  height: 5px;
  background: rgba(255,255,255,0.12);
  border-radius: 99px;
  overflow: hidden;
}
.lsp-fill {
  height: 100%;
  background: linear-gradient(90deg, #D97706, #F59E0B);
  border-radius: 99px;
  transition: width 0.5s ease;
}
.lsp-pct {
  font-size: 0.78rem;
  font-weight: 800;
  color: #F59E0B;
  min-width: 30px;
}
.lsh-stats {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  font-weight: 600;
}

/* Sidebar Scrollable List */
.lesson-sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 6px;
  scrollbar-width: thin;
  scrollbar-color: rgba(217,119,6,0.3) transparent;
}
.lesson-sidebar-list::-webkit-scrollbar { width: 4px; }
.lesson-sidebar-list::-webkit-scrollbar-thumb {
  background: rgba(217,119,6,0.35);
  border-radius: 99px;
}

/* Accordion Package */
.acc-pkg {
  margin-bottom: 4px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.07);
}
.acc-pkg-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 12px;
  background: rgba(255,255,255,0.05);
  cursor: pointer;
  user-select: none;
  transition: background 0.18s;
}
.acc-pkg-header:hover { background: rgba(255,255,255,0.09); }
.acc-pkg-icon { font-size: 0.95rem; flex-shrink: 0; }
.acc-pkg-title {
  flex: 1;
  font-size: 0.86rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  line-height: 1.3;
}
.acc-pkg-meta {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.4);
  font-weight: 600;
  white-space: nowrap;
}
.acc-pkg-chevron {
  color: rgba(255,255,255,0.4);
  font-size: 1.1rem;
  transition: transform 0.25s;
  flex-shrink: 0;
}
.acc-pkg.open .acc-pkg-chevron { transform: rotate(180deg); }
.acc-pkg-body {
  display: none;
  padding: 4px 4px 6px;
  background: rgba(0,0,0,0.2);
}
.acc-pkg.open .acc-pkg-body { display: block; }

/* Sidebar Lesson Item */
.sidebar-lesson-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 10px 10px 12px;
  border-radius: 8px;
  margin-bottom: 2px;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  border-right: 3px solid transparent;
}
.sidebar-lesson-item:hover { background: rgba(255,255,255,0.07); }
.sidebar-lesson-item.active {
  background: rgba(217,119,6,0.15);
  border-right-color: #D97706;
}
.sidebar-lesson-item.active .sl-title {
  color: #F59E0B;
  font-weight: 800;
}
.sidebar-lesson-item.completed .sl-title {
  color: rgba(255,255,255,0.4);
  text-decoration: line-through;
}
.sidebar-lesson-item.locked { opacity: 0.45; cursor: not-allowed; }

.sl-num {
  font-size: 0.7rem;
  font-weight: 800;
  color: rgba(255,255,255,0.28);
  min-width: 20px;
  flex-shrink: 0;
}
.sl-icon {
  font-size: 0.9rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}
.sl-title {
  flex: 1;
  font-size: 0.83rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  line-height: 1.35;
}
.sl-duration {
  font-size: 0.68rem;
  color: rgba(255,255,255,0.28);
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}
.sl-empty {
  padding: 16px;
  text-align: center;
  color: rgba(255,255,255,0.3);
  font-size: 0.82rem;
  font-style: italic;
}

/* Mobile Sidebar Backdrop */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: calc(var(--z-overlay) - 1);
  backdrop-filter: blur(2px);
}
.sidebar-backdrop.show { display: block; }

/* ── Main Content ─────────────────────────────────────────────── */
.lesson-content {
  padding: var(--space-xl) var(--space-2xl);
  max-width: 900px;
  width: 100%;
}

/* Breadcrumb */
.lesson-content-header { margin-bottom: var(--space-xl); }
.lesson-content-header .breadcrumb {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.83rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.lesson-content-header .breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.lesson-content-header .breadcrumb a:hover { color: var(--accent-500); }
.bc-sep { color: var(--text-muted); opacity: 0.4; }

/* Lesson Title */
.lesson-title {
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  color: #0F172A;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 10px;
}
[data-theme="dark"] .lesson-title { color: #F1F5F9; }

/* Meta Row */
.lesson-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.lesson-duration {
  font-size: 0.81rem;
  color: var(--text-muted);
  font-weight: 600;
}
.lesson-index {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 700;
  background: var(--border-light, #E2E8F0);
  padding: 3px 10px;
  border-radius: 99px;
  margin-right: auto;
}

/* Body */
.lesson-body-content { margin-bottom: var(--space-xl); }

/* ═══════════════════════════════════════════════════════════
   LESSON TABS NAV — Premium Redesign
   ═══════════════════════════════════════════════════════════ */
.lesson-tabs-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: var(--space-lg);
  padding: 5px;
  background: var(--bg-surface, #FFFFFF);
  border: 1.5px solid var(--border, #E2E8F0);
  border-radius: 18px;
  overflow-x: auto;
  scrollbar-width: none;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.8);
  position: relative;
}
[data-theme="dark"] .lesson-tabs-nav {
  background: rgba(15,23,42,0.7);
  border-color: rgba(255,255,255,0.08);
  box-shadow: 0 2px 16px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.05);
}
.lesson-tabs-nav::-webkit-scrollbar { display: none; }

.lesson-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: 14px;
  border: 1.5px solid transparent;
  background: transparent;
  color: var(--text-secondary, #64748B);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  flex-shrink: 0;
}
.lesson-tab-btn:hover {
  background: var(--bg-alt, #F1F5F9);
  color: var(--text-primary, #0F172A);
  transform: translateY(-1px);
}
[data-theme="dark"] .lesson-tab-btn:hover {
  background: rgba(255,255,255,0.06);
  color: #e2e8f0;
}
.lesson-tab-btn.active {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 60%, var(--primary-700) 100%);
  color: #FFFFFF;
  border-color: rgba(249,115,22,0.5);
  box-shadow: 0 4px 18px rgba(249, 115, 22, 0.4), 0 1px 0 rgba(255,255,255,0.2) inset;
  transform: translateY(-1px);
}
.lesson-tab-btn.active .lt-icon {
  filter: drop-shadow(0 0 4px rgba(255,255,255,0.5));
}
.lesson-tab-btn .lt-icon {
  font-size: 1rem;
  transition: transform 0.2s;
}
.lesson-tab-btn:hover .lt-icon { transform: scale(1.1); }

.lesson-tab-pane {
  display: none;
  animation: tabSlideUp 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.lesson-tab-pane.active { display: block; }

@keyframes tabSlideUp {
  from { opacity: 0; transform: translateY(10px) scale(0.99); }
  to   { opacity: 1; transform: translateY(0)   scale(1);    }
}
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Segments Playlist — Premium Cards ──────────────────────── */
.segment-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--border, #E2E8F0);
  background: var(--bg-surface, #FFFFFF);
  color: var(--text-secondary, #475569);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}
.segment-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(99,102,241,0.06));
  opacity: 0;
  transition: opacity 0.2s;
}
.segment-btn:hover::before { opacity: 1; }
.segment-btn:hover {
  border-color: #93C5FD;
  color: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(37,99,235,0.15);
}
[data-theme="dark"] .segment-btn {
  background: rgba(30,41,59,0.8);
  border-color: rgba(255,255,255,0.1);
  color: rgba(226,232,240,0.8);
}
[data-theme="dark"] .segment-btn:hover {
  border-color: #3b82f6;
  color: #93c5fd;
  background: rgba(37,99,235,0.15);
}
.segment-btn.active {
  background: linear-gradient(135deg, #2563EB 0%, #4F46E5 100%);
  border-color: #2563EB;
  color: #FFFFFF;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45), 0 1px 0 rgba(255,255,255,0.2) inset;
  transform: translateY(-2px);
}
.segment-btn.active::before { opacity: 0; }

/* ── Video Player — Professional Theater Mode ─────────────────── */
.video-player-wrap {
  border-radius: 14px;
  overflow: hidden;
  background: #050912;
  margin-bottom: var(--space-xl);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 0 1px rgba(217,119,6,0.15);
  position: relative;
}

.video-responsive-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 14px;
  background: #000000;
  isolation: isolate;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
.video-responsive-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: inherit;
  display: block;
  z-index: 1;
}

/* ── دروع الحماية من مغادرة المنصة أو فتح القناة ── */
.yt-shield {
  position: absolute;
  z-index: 15;
  background: transparent;
  pointer-events: all !important;
  cursor: default;
  touch-action: pan-y; /* يسمح بالتمرير الرأسي للشاشة بسلاسة دون فتح أي روابط */
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

/* الدرع العلوي: يمنع الضغط على عنوان الفيديو وصورة القناة الشخصية وأزرار المشاركة */
.yt-shield-top {
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 16;
}

/* درع الزاوية العلوية اليمنى: حماية إضافية لزر المشاركة والقائمة */
.yt-shield-tr {
  top: 0;
  right: 0;
  width: 170px;
  height: 75px;
  z-index: 17;
}

/* درع الزاوية العلوية اليسرى: حماية صورة القناة والعنوان */
.yt-shield-tl {
  top: 0;
  left: 0;
  width: 170px;
  height: 75px;
  z-index: 17;
}

/* الدرع السفلي الأيمن: يمنع الضغط على لوجو يوتيوب وزر Watch on YouTube */
.yt-shield-br {
  bottom: 0;
  right: 0;
  width: 155px;
  height: 56px;
  z-index: 17;
}

/* الدرع السفلي الأيسر: يمنع الضغط على بطاقات يوتيوب المنبثقة والشعارات */
.yt-shield-bl {
  bottom: 0;
  left: 0;
  width: 90px;
  height: 56px;
  z-index: 17;
}

.video-player-wrap video {
  width: 100%;
  display: block;
  background: #000;
}

.video-player-wrap .video-placeholder {
  aspect-ratio: 16/9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  gap: var(--space-md);
  background: radial-gradient(circle at center, #1E293B 0%, #050912 100%);
}
.video-placeholder .play-btn-big {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: linear-gradient(135deg, #B45309, #D97706, #F59E0B);
  box-shadow: 0 0 30px rgba(217,119,6,0.55);
  border: 3px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.video-placeholder .play-btn-big:hover {
  transform: scale(1.12);
  box-shadow: 0 0 45px rgba(245,158,11,0.8);
}

/* ── PDF Viewer Block ─────────────────────────────────────────── */
.pdf-viewer-block {
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  margin-bottom: var(--space-xl);
}
.pdf-viewer-block .pdf-actions {
  display: flex;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  align-items: center;
}
.pdf-viewer-block .pdf-title {
  font-weight: 800;
  font-size: 1rem;
  flex: 1;
}
.pdf-viewer-block iframe {
  width: 100%;
  height: 620px;
  border: none;
  display: block;
}
@media (max-width: 768px) {
  .pdf-viewer-block iframe { height: 420px; }
}

/* Quiz Section */
.quiz-section {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
}
.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--border-light);
}
.quiz-question {
  margin-bottom: var(--space-xl);
}
.quiz-question .q-number {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-600);
  background: #FEF3C7;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: var(--space-sm);
}
.quiz-question .q-text {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.quiz-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast);
  font-size: 0.95rem;
}
.quiz-option:hover { border-color: var(--primary-300); background: var(--primary-50); }
.quiz-option.selected { border-color: var(--primary-500); background: var(--primary-50); }
.quiz-option.correct { border-color: var(--success); background: var(--success-light); }
.quiz-option.wrong { border-color: var(--danger); background: var(--danger-light); }
.quiz-option .option-letter {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--secondary-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.quiz-option.selected .option-letter { background: var(--primary-500); color: white; }

/* Lesson Navigation */
.lesson-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-light);
  margin-top: var(--space-xl);
}
.lesson-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}


/* ═══════════════════════════════════════════════════════════════
   PAGE: DASHBOARD
   ═══════════════════════════════════════════════════════════════ */
.dashboard-page {
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-3xl);
}

.dashboard-welcome {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-400), var(--primary-300));
  border-radius: var(--radius-xl);
  padding: var(--space-xl) var(--space-2xl);
  color: white;
  margin-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}
.dashboard-welcome::after {
  content: '📐';
  position: absolute;
  left: 40px;
  bottom: -10px;
  font-size: 6rem;
  opacity: 0.1;
}
.dashboard-welcome h2 { color: white; font-size: 1.5rem; margin-bottom: 6px; }
.dashboard-welcome p { color: rgba(255,255,255,0.85); font-size: 0.95rem; }

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.dash-stat-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--duration-normal);
}
.dash-stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.dash-stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.dash-stat-icon.green { background: var(--primary-50); color: var(--primary-500); }
.dash-stat-icon.yellow { background: var(--accent-50); color: var(--accent-500); }
.dash-stat-icon.blue { background: var(--info-light); color: var(--info); }
.dash-stat-icon.red { background: var(--danger-light); color: var(--danger); }

.dash-stat-info .stat-val { font-size: 1.6rem; font-weight: 900; font-family: var(--font-en); }
.dash-stat-info .stat-label { font-size: 0.82rem; color: var(--text-muted); font-weight: 600; }

.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

/* Enrolled Courses List */
.enrolled-courses-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
}
.enrolled-courses-card .card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.enrolled-courses-card .card-header h3 { font-size: 1.1rem; }

.enrolled-course-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  transition: background var(--duration-fast);
  cursor: pointer;
}
.enrolled-course-item:last-child { border-bottom: none; }
.enrolled-course-item:hover { background: var(--secondary-50); }

.enrolled-course-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-100), var(--accent-50));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.enrolled-course-info { flex: 1; }
.enrolled-course-info h4 { font-size: 0.95rem; margin-bottom: 4px; }
.enrolled-course-info .progress-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

/* Activity Feed */
.activity-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
}
.activity-card .card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
}
.activity-card .card-header h3 { font-size: 1.1rem; }

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px var(--space-lg);
  border-bottom: 1px solid var(--border-light);
}
.activity-item:last-child { border-bottom: none; }
.activity-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.activity-text { font-size: 0.88rem; font-weight: 600; }
.activity-time { font-size: 0.75rem; color: var(--text-muted); margin-top: 3px; }


/* ═══════════════════════════════════════════════════════════════
   PAGE: PROFILE
   ═══════════════════════════════════════════════════════════════ */
.profile-page {
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-3xl);
}

.profile-header-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  padding: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
}
.profile-avatar {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--primary-400), var(--accent-400));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2.5rem;
  font-weight: 900;
  flex-shrink: 0;
}
.profile-info h2 { font-size: 1.5rem; margin-bottom: 4px; }
.profile-info .profile-email {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.profile-info .profile-badges {
  display: flex;
  gap: 8px;
}

.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}
.profile-section {
  background: var(--surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  padding: var(--space-xl);
  box-shadow: var(--shadow-xs);
}
.profile-section h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-light);
}


/* ═══════════════════════════════════════════════════════════════
   PAGE: AUTH (LOGIN / REGISTER) — Modern Luxury Redesign
   ═══════════════════════════════════════════════════════════════ */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  background: var(--bg);
  position: relative;
}

/* ── Side 1: Visual Showcase ────────────────────────────────── */
.auth-visual {
  background: radial-gradient(circle at 20% 20%, rgba(217, 119, 6, 0.18) 0%, transparent 40%),
              radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.15) 0%, transparent 45%),
              linear-gradient(155deg, #07150c 0%, #0d281a 45%, #102e1d 85%, #08170e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-2xl);
  position: relative;
  overflow: hidden;
  border-left: 1px solid rgba(217, 119, 6, 0.2);
}

.auth-visual-mesh {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(rgba(245, 158, 11, 0.08) 1px, transparent 1px),
    radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: 0 0, 14px 14px;
  pointer-events: none;
}

.auth-visual-content {
  text-align: center;
  color: white;
  position: relative;
  z-index: 2;
  max-width: 440px;
  width: 100%;
}

/* Teacher Avatar Badge */
.auth-teacher-badge {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 60px;
  padding: 8px 20px 8px 10px;
  margin-bottom: var(--space-xl);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), inset 0 0 15px rgba(245, 158, 11, 0.1);
}

.auth-t-img {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  border: 2px solid #f59e0b;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
}

.auth-t-info {
  text-align: right;
}

.auth-t-crown {
  font-size: 0.85rem;
  line-height: 1;
}

.auth-t-name {
  font-size: 0.98rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.2px;
}

.auth-t-sub {
  font-size: 0.76rem;
  color: #fbbf24;
  font-weight: 600;
}

.auth-visual-title {
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #ffffff 30%, #fef3c7 70%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.auth-visual-desc {
  color: rgba(241, 245, 249, 0.82);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: var(--space-2xl);
}

.auth-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: var(--space-lg);
}

.auth-stat-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 16px 12px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.25s ease;
}

.auth-stat-card:hover {
  transform: translateY(-3px);
  border-color: rgba(245, 158, 11, 0.4);
}

.auth-stat-num {
  font-size: 1.6rem;
  font-weight: 900;
  color: #f59e0b;
  line-height: 1.2;
}

.auth-stat-lbl {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  margin-top: 4px;
}

.auth-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: right;
  margin-top: var(--space-md);
}

.auth-feat-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #f8fafc;
  backdrop-filter: blur(6px);
}

.auth-feat-icon {
  font-size: 1.15rem;
}

/* ── Side 2: Auth Form Side ─────────────────────────────────── */
.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-xl);
  background: var(--bg);
  position: relative;
}

.auth-form-card {
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.07),
              0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
}

.auth-form-card.auth-register-card {
  max-width: 540px;
}

.auth-card-header {
  text-align: center;
  margin-bottom: 24px;
}

.auth-logo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(234, 88, 12, 0.08);
  border: 1px solid rgba(234, 88, 12, 0.18);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 12px;
  text-decoration: none;
}

.auth-logo-icon {
  font-size: 1.1rem;
}

.auth-logo-text {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--primary-700);
}

[data-theme="dark"] .auth-logo-text {
  color: var(--primary-300);
}

.auth-heading {
  font-size: 1.55rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
}

/* Alert Boxes */
.auth-alert-error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fca5a5;
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 18px;
  font-size: 0.88rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: authShake 0.35s ease;
}

[data-theme="dark"] .auth-alert-error {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.35);
}

@keyframes authShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Form Groups & Labels */
.form-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.form-label-row .form-label {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

/* Live 11-digit counter tag */
.phone-len-counter {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--bg-alt, #f1f5f9);
  color: var(--text-muted);
  border: 1px solid var(--border);
  direction: ltr;
  font-family: 'Outfit', monospace, sans-serif;
  transition: all 0.2s ease;
}

.phone-len-counter.typing {
  background: #fffbeb;
  color: #d97706;
  border-color: #fcd34d;
}

.phone-len-counter.valid {
  background: #ecfdf5;
  color: #059669;
  border-color: #6ee7b7;
  font-weight: 800;
}

[data-theme="dark"] .phone-len-counter.typing {
  background: rgba(217, 119, 6, 0.15);
  color: #fbbf24;
  border-color: rgba(217, 119, 6, 0.35);
}

[data-theme="dark"] .phone-len-counter.valid {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.35);
}

/* Form Inputs */
.form-input-icon-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-icon {
  position: absolute;
  right: 14px;
  font-size: 1rem;
  color: var(--text-muted);
  pointer-events: none;
  z-index: 1;
}

.form-input,
.form-select {
  width: 100%;
  height: 48px;
  padding: 10px 42px 10px 14px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  outline: none;
  transition: all 0.2s ease;
}

.form-input.phone-input {
  letter-spacing: 1px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
}

.form-input:focus,
.form-select:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3.5px rgba(234, 88, 12, 0.12);
}

.form-input.input-valid {
  border-color: #10b981 !important;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15) !important;
}

.form-input.input-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

.form-hint {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 4px;
  padding-right: 2px;
}

.form-row-auth {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* Password Toggle Eye */
.password-toggle {
  position: absolute;
  left: 14px;
  font-size: 1.05rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  transition: transform 0.15s ease;
  z-index: 2;
}

.password-toggle:hover {
  transform: scale(1.15);
}

/* Forgot Password Link */
.forgot-pw-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-600);
  text-decoration: none;
}

.forgot-pw-link:hover {
  text-decoration: underline;
}

[data-theme="dark"] .forgot-pw-link {
  color: var(--primary-400);
}

/* Section Radio Pills */
.section-radio-pills {
  display: flex;
  gap: 10px;
}

.radio-pill-card {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-alt, #f8fafc);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.radio-pill-card:hover {
  border-color: var(--primary-400);
  background: var(--surface);
}

.radio-pill-card input[type="radio"] {
  accent-color: var(--primary-600);
}

.form-options-row {
  margin: 16px 0 20px;
}

.remember-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.custom-checkbox {
  width: 17px;
  height: 17px;
  accent-color: var(--primary-600);
  cursor: pointer;
}

.auth-link-terms {
  color: var(--primary-600);
  font-weight: 700;
  text-decoration: underline;
}

/* Auth Submit Button */
.btn-auth-submit {
  width: 100%;
  height: 50px;
  background: linear-gradient(135deg, #C2410C 0%, #EA580C 60%, #d97706 100%);
  color: white;
  border: none;
  border-radius: 14px;
  font-size: 1.02rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  box-shadow: 0 10px 25px -5px rgba(234, 88, 12, 0.4),
              0 2px 6px rgba(0, 0, 0, 0.08);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-auth-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -4px rgba(234, 88, 12, 0.5),
              0 4px 10px rgba(0, 0, 0, 0.12);
  filter: brightness(1.06);
}

.btn-auth-submit:active {
  transform: translateY(0);
}

.btn-arrow-icon {
  font-size: 1.15rem;
  transition: transform 0.2s ease;
}

.btn-auth-submit:hover .btn-arrow-icon {
  transform: translateX(-4px);
}

/* Auth Footer */
.auth-footer-box {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.auth-switch-link {
  color: var(--primary-600);
  font-weight: 800;
  text-decoration: none;
  transition: color 0.15s;
}

.auth-switch-link:hover {
  color: var(--primary-700);
  text-decoration: underline;
}

[data-theme="dark"] .auth-switch-link {
  color: #34d399;
}

/* Responsive Auth Layout */
@media (max-width: 992px) {
  .auth-page {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .auth-visual {
    padding: var(--space-2xl) var(--space-lg);
    border-left: none;
    border-bottom: 1px solid rgba(217, 119, 6, 0.2);
  }
  .auth-visual-desc {
    display: none;
  }
  .auth-features-list,
  .auth-stats-grid {
    display: none;
  }
  .auth-visual-title {
    font-size: 1.35rem;
    margin-bottom: 0;
  }
  .auth-teacher-badge {
    margin-bottom: 10px;
  }
  .auth-form-side {
    padding: var(--space-xl) var(--space-md);
  }
  .auth-form-card {
    padding: 24px 18px;
    border-radius: 20px;
  }
}

@media (max-width: 600px) {
  .form-row-auth {
    grid-template-columns: 1fr;
    gap: 0;
  }
}


/* ═══════════════════════════════════════════════════════════════
   TESTIMONIALS
   ═══════════════════════════════════════════════════════════════ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.testimonial-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
  transition: all var(--duration-normal) var(--ease-out);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  color: var(--accent-400);
  font-size: 1rem;
  margin-bottom: var(--space-md);
  letter-spacing: 2px;
}
.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-200), var(--accent-200));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--primary-700);
}
.testimonial-name { font-weight: 700; font-size: 0.9rem; }
.testimonial-grade { font-size: 0.78rem; color: var(--text-muted); }


/* ═══════════════════════════════════════════════════════════════
   CTA SECTION (Dark Emerald & Copper Glowing Gradient)
   ═══════════════════════════════════════════════════════════════ */
.cta-section {
  background: radial-gradient(circle at 85% 20%, rgba(217, 119, 6, 0.25) 0%, transparent 50%),
              radial-gradient(circle at 15% 80%, rgba(234, 88, 12, 0.3) 0%, transparent 50%),
              linear-gradient(150deg, #050811 0%, #0B1220 50%, #1E293B 100%);
  padding: var(--space-4xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(217, 119, 6, 0.25);
  border-bottom: 1px solid rgba(217, 119, 6, 0.25);
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: var(--accent-500);
  opacity: 0.08;
  filter: blur(60px);
}
.cta-section h2 { color: #FFFFFF; font-size: 2.2rem; font-weight: 900; margin-bottom: var(--space-md); position: relative; }
.cta-section p { color: #CBD5E1; font-size: 1.1rem; margin-bottom: var(--space-xl); position: relative; max-width: 550px; margin-inline: auto; }
.cta-section .btn { position: relative; }


/* ═══════════════════════════════════════════════════════════════
   FOOTER (Luxury Slate-Black with Copper Accents)
   ═══════════════════════════════════════════════════════════════ */
.footer {
  background: #050811;
  color: #94A3B8;
  padding: var(--space-3xl) 0 var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-md);
}
.footer-brand .footer-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-400));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 1.1rem;
}
.footer-brand .footer-logo-text { color: white; font-weight: 800; font-size: 1.05rem; }
.footer-brand p { font-size: 0.88rem; line-height: 1.8; max-width: 300px; }

.footer-col h4 { color: white; font-size: 0.95rem; margin-bottom: var(--space-md); }
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: all var(--duration-fast);
}
.footer-col a:hover { color: var(--primary-300); padding-right: 6px; }

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--duration-fast);
}
.footer-social a:hover {
  background: var(--primary-500);
  color: white;
  transform: translateY(-2px);
}


/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes float-slow {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(30px, -20px); }
  50% { transform: translate(-15px, 15px); }
  75% { transform: translate(20px, 10px); }
}

@keyframes float-symbol {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.06; }
  50% { transform: translateY(-20px) rotate(10deg); opacity: 0.1; }
}

@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

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

/* Scroll Animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.course-card.reveal {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Page Transitions */
.page-transition {
  animation: fadeInUp 0.5s var(--ease-out);
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

/* Tablet */
@media (max-width: 1200px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-content { max-width: 100%; margin-inline: auto; }
  .hero-cta { justify-content: center; }
  .hero-stats-row { justify-content: center; }
  .hero-visual { display: none; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }

  .course-details-hero .container { grid-template-columns: 1fr; }
  .course-sidebar-card { position: static; }

  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }

  .profile-grid { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 768px) {
  :root { --header-height: 66px; }

  .header-nav { display: none; }
  .header-actions .btn { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero { min-height: auto; padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl); }
  .hero h1 { font-size: 1.8rem; }
  .hero-description { font-size: 1rem; }
  .hero-stats-row { flex-wrap: wrap; gap: var(--space-md); }
  .hero-stat-divider { display: none; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
  .stat-number { font-size: 1.8rem; }

  .features-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }

  /* ── Lesson Page (Mobile <= 768px) ── */
  .lesson-page {
    display: block;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }
  .lesson-sidebar {
    position: fixed;
    right: -320px;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    width: min(320px, 86vw);
    z-index: 1000;
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 35px rgba(0,0,0,0.5);
  }
  .lesson-sidebar.show { right: 0 !important; }
  .lsh-close-btn { display: flex; }

  .lesson-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
  }
  .lesson-sidebar-backdrop.show {
    display: block;
    opacity: 1;
    pointer-events: auto;
  }

  .lesson-sidebar-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: fixed;
    bottom: 24px;
    right: 20px;
    z-index: 995;
    padding: 11px 20px;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    color: #ffffff;
    font-family: inherit;
    font-weight: 800;
    font-size: 0.92rem;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.45);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .lesson-sidebar-toggle:active {
    transform: scale(0.96);
  }

  .lesson-content {
    padding: 16px 14px 90px 14px;
    width: 100%;
    box-sizing: border-box;
    max-width: 100%;
  }
  .lesson-content-header .breadcrumb {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
  }
  .lesson-content-header .breadcrumb::-webkit-scrollbar { display: none; }
  .lesson-title { font-size: 1.25rem; line-height: 1.35; }
  .lesson-tabs-nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 4px;
    gap: 4px;
  }
  .lesson-tab-btn {
    padding: 8px 14px;
    font-size: 0.83rem;
  }
  .lesson-nav {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }
  .lesson-nav .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .dashboard-stats { grid-template-columns: 1fr; }
  .dashboard-welcome { padding: var(--space-lg); }

  .profile-header-card {
    flex-direction: column;
    text-align: center;
  }

  .auth-page { grid-template-columns: 1fr; }
  .auth-visual { display: none; }
  .auth-form-side { padding: var(--space-lg); }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-md); text-align: center; }

  .courses-filter-bar { flex-direction: column; }
  .filter-search { min-width: 100%; }

  .course-details-meta { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
}

@media (max-width: 480px) {
  .container { padding-inline: var(--space-md); }
  .hero h1 { font-size: 1.5rem; }
  .hero-badge { font-size: 0.78rem; padding: 6px 14px; }
  .btn-xl { padding: 14px 28px; font-size: 1rem; }
  .auth-form .form-row { grid-template-columns: 1fr; }
  /* Lesson page on small phones */
  .lesson-content { padding: 14px 12px 90px 12px; }
  .lesson-title { font-size: 1.15rem; }
  .lesson-meta-row { gap: 6px; }
  .lesson-sidebar-toggle { bottom: 16px; right: 16px; padding: 10px 16px; font-size: 0.85rem; }
  .lesson-nav { flex-direction: column; gap: 8px; }
  .lesson-nav .btn { width: 100%; justify-content: center; font-size: 0.95rem; }
}

/* Lesson sidebar toggle - hidden by default on desktop */
.lesson-sidebar-toggle {
  display: none;
}

/* Toast / notification */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--neutral-800);
  color: white;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  opacity: 0;
  transition: all var(--duration-normal) var(--ease-out);
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* ═══════════════════════════════════════════════════════════════
   LICENSE PAGE — Accordion Styles
   ═══════════════════════════════════════════════════════════════ */

/* Course header on license page */
.license-course-header {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-2xl);
  align-items: start;
  margin-bottom: var(--space-xl);
}

@media (max-width: 900px) {
  .license-course-header { grid-template-columns: 1fr; }
}

/* Status card */
.license-status-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.license-activate-form { text-align: right; }

/* ═══════════════════════════════════════════════════════════════
   LICENSE PAGE — ACCORDION — Premium Pro Redesign
   ═══════════════════════════════════════════════════════════════ */

/* Accordion container */
.license-accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Package (accordion item) */
.accordion-package {
  background: var(--bg-surface, #fff);
  border: 1.5px solid var(--border, #E2E8F0);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: box-shadow 0.25s, border-color 0.25s, transform 0.25s;
}
.accordion-package:hover {
  box-shadow: 0 8px 28px rgba(0,0,0,0.09);
  transform: translateY(-1px);
}
.accordion-package.open {
  border-color: #3B82F6;
  box-shadow: 0 6px 24px rgba(37,99,235,0.12);
}
[data-theme="dark"] .accordion-package {
  background: rgba(15,23,42,0.6);
  border-color: rgba(255,255,255,0.07);
}
[data-theme="dark"] .accordion-package.open {
  border-color: rgba(59,130,246,0.45);
}

/* Package header */
.accordion-pkg-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  cursor: pointer;
  background: linear-gradient(135deg, var(--bg-surface, #fff) 0%, var(--bg-alt, #F8FAFC) 100%);
  transition: background 0.2s;
  user-select: none;
  position: relative;
}
.accordion-pkg-header::before {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #3B82F6, #6366F1);
  border-radius: 0 0 0 4px;
  opacity: 0;
  transition: opacity 0.25s;
}
.accordion-package.open .accordion-pkg-header::before { opacity: 1; }
.accordion-pkg-header:hover {
  background: linear-gradient(135deg, #EFF6FF 0%, #F0F9FF 100%);
}
[data-theme="dark"] .accordion-pkg-header {
  background: rgba(255,255,255,0.03);
}
[data-theme="dark"] .accordion-pkg-header:hover {
  background: rgba(59,130,246,0.07);
}
.accordion-package.open .accordion-pkg-header {
  background: linear-gradient(135deg, #EFF6FF 0%, #F0F9FF 100%);
  border-bottom: 1px solid rgba(37,99,235,0.12);
}
[data-theme="dark"] .accordion-package.open .accordion-pkg-header {
  background: rgba(37,99,235,0.08);
  border-bottom-color: rgba(59,130,246,0.15);
}

.accordion-pkg-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.35;
}

/* Package number badge */
.accordion-pkg-title .pkg-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3B82F6, #6366F1);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 900;
  flex-shrink: 0;
}

.accordion-pkg-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(37,99,235,0.08);
  color: #3B82F6;
  font-size: 0.78rem;
  font-weight: 900;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), background 0.2s;
  flex-shrink: 0;
}
.accordion-package.open .accordion-pkg-arrow {
  transform: rotate(180deg);
  background: #3B82F6;
  color: #fff;
}

.accordion-pkg-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}
.accordion-pkg-meta .lesson-count {
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(99,102,241,0.1));
  color: #2563EB;
  border: 1px solid rgba(37,99,235,0.2);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 800;
}
[data-theme="dark"] .accordion-pkg-meta .lesson-count {
  background: rgba(37,99,235,0.15);
  color: #93C5FD;
  border-color: rgba(37,99,235,0.25);
}

/* Package lessons (collapsible) */
.accordion-pkg-lessons {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.accordion-pkg-lessons.open {
  max-height: 3000px;
}

/* Individual lesson row */
.accordion-lesson-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light, #F1F5F9);
  cursor: pointer;
  transition: all 0.18s ease;
  position: relative;
}
.accordion-lesson-item::before {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #3B82F6, #6366F1);
  opacity: 0;
  transition: opacity 0.18s;
  border-radius: 0 0 0 3px;
}
.accordion-lesson-item:hover::before { opacity: 1; }
.accordion-lesson-item:last-child { border-bottom: none; }
.accordion-lesson-item:hover {
  background: #F8FBFF;
  padding-right: 24px;
}
[data-theme="dark"] .accordion-lesson-item:hover {
  background: rgba(37,99,235,0.06);
}
.accordion-lesson-item.locked {
  opacity: 0.55;
  cursor: not-allowed;
}
.accordion-lesson-item.locked:hover { background: transparent; padding-right: 20px; }
.accordion-lesson-item.locked:hover::before { opacity: 0; }
.accordion-lesson-item.completed {
  background: linear-gradient(135deg, rgba(16,185,129,0.05) 0%, rgba(5,150,105,0.03) 100%);
}
.accordion-lesson-item.completed:hover {
  background: linear-gradient(135deg, rgba(16,185,129,0.09) 0%, rgba(5,150,105,0.06) 100%);
}
.accordion-lesson-item.completed::before {
  background: linear-gradient(180deg, #10B981, #059669);
  opacity: 0.6;
}

.accordion-lesson-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}
.accordion-lesson-num {
  font-size: 0.72rem;
  color: var(--text-muted);
  min-width: 26px;
  font-weight: 700;
  flex-shrink: 0;
  background: var(--bg-alt, #F1F5F9);
  border-radius: 6px;
  padding: 3px 6px;
  text-align: center;
}
.accordion-lesson-icon {
  font-size: 1rem;
  min-width: 26px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt, #F1F5F9);
  flex-shrink: 0;
}
.accordion-lesson-item:hover .accordion-lesson-icon {
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(99,102,241,0.1));
}
.accordion-lesson-title {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-primary);
  margin-bottom: 3px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.accordion-lesson-meta {
  font-size: 0.76rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}
.accordion-lesson-right {
  flex-shrink: 0;
  margin-right: 6px;
}

/* Responsive */
@media (max-width: 640px) {
  .accordion-pkg-header { padding: 13px 16px; }
  .accordion-lesson-item { padding: 12px 16px; flex-wrap: wrap; gap: 6px; }
  .accordion-lesson-right { width: 100%; text-align: left; padding-right: 38px; }
}

/* ═══════════════════════════════════════════════════════════════
   ADMIN SYSTEM — Admin Dashboard + Lessons Manager
   ═══════════════════════════════════════════════════════════════ */

/* ── Admin Nav Link ─────────────────────────────────────────── */
.admin-nav-link {
  background: linear-gradient(135deg, var(--accent-400), var(--accent-600)) !important;
  color: #fff !important;
  border-radius: 8px;
  padding: 6px 14px !important;
  font-weight: 700 !important;
  letter-spacing: 0.01em;
  transition: opacity 0.2s;
}
.admin-nav-link:hover { opacity: 0.88; }

/* ── Admin Page (Course List) ───────────────────────────────── */
.admin-page {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-4xl);
  min-height: 100vh;
}

.admin-page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border);
}
.admin-page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: var(--space-sm) 0;
}
.admin-page-header p {
  color: var(--text-secondary);
}

.admin-header-stats {
  display: flex;
  gap: var(--space-md);
  flex-shrink: 0;
}
.admin-stat-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-md) var(--space-lg);
  min-width: 70px;
  text-align: center;
}
.admin-stat-num {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--primary-500);
  line-height: 1;
}
.admin-stat-lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Admin Course Row ───────────────────────────────────────── */
.admin-courses-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.admin-course-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: var(--space-lg) var(--space-xl);
  transition: all 0.2s;
  cursor: default;
}
.admin-course-row:hover {
  border-color: var(--primary-300);
  box-shadow: 0 4px 20px rgba(27,107,58,0.08);
  transform: translateY(-1px);
}
.admin-course-row-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-50);
  border-radius: 14px;
}
.admin-course-row-info {
  flex: 1;
  min-width: 0;
}
.admin-course-row-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-course-row-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.admin-meta-stat {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}
.admin-course-row-actions {
  flex-shrink: 0;
}

/* ── Admin Course Page ──────────────────────────────────────── */
.admin-course-page {
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-4xl);
  min-height: 100vh;
}

.admin-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-xl);
  font-size: 0.92rem;
  color: var(--text-muted);
}
.admin-breadcrumb-link {
  color: var(--primary-500);
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}
.admin-breadcrumb-link:hover { opacity: 0.75; }
.admin-breadcrumb-sep {
  font-size: 1.1rem;
  color: var(--border);
}

.admin-course-page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
}
.admin-course-page-info {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.admin-course-page-icon {
  font-size: 2.8rem;
  background: var(--primary-50);
  border-radius: 16px;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.admin-course-page-info h1 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.admin-course-page-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ── Empty Lessons State ────────────────────────────────────── */
.admin-empty-lessons {
  text-align: center;
  padding: var(--space-4xl) var(--space-2xl);
  background: var(--bg-card);
  border: 2px dashed var(--border);
  border-radius: 20px;
  color: var(--text-muted);
}
.admin-empty-lessons h3 {
  font-size: 1.3rem;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--text-secondary);
}

/* ── Lessons List ───────────────────────────────────────────── */
.admin-lessons-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ── Lesson Box (Accordion Card) ────────────────────────────── */
.lesson-box {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.lesson-box:hover {
  border-color: var(--primary-300);
  box-shadow: 0 4px 24px rgba(27,107,58,0.07);
}
.lesson-box.open {
  border-color: var(--primary-400);
  box-shadow: 0 6px 30px rgba(27,107,58,0.10);
}
.lesson-box.draft {
  border-color: var(--accent-300);
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--accent-50) 100%);
}

/* Lesson Box Header */
.lesson-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}
.lesson-box-header:hover {
  background: var(--bg-alt);
}
.lesson-box-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex: 1;
  min-width: 0;
}
.lesson-box-drag {
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: grab;
  padding: 4px;
  opacity: 0.5;
  transition: opacity 0.2s;
  flex-shrink: 0;
}
.lesson-box-drag:hover { opacity: 1; }

.lesson-box-order {
  width: 34px;
  height: 34px;
  background: var(--primary-500);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  flex-shrink: 0;
}
.lesson-box.draft .lesson-box-order {
  background: var(--accent-500);
}

.lesson-box-toggle-icon {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.lesson-box.open .lesson-box-toggle-icon {
  transform: rotate(0deg);
}

.lesson-box-title-wrap {
  flex: 1;
  min-width: 0;
}
.lesson-box-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lesson-box-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.lesson-box-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-alt);
  border-radius: 6px;
  padding: 2px 8px;
}
.lesson-box-desc-preview {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

.lesson-box-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}
.btn.danger-hover:hover {
  background: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger);
}

/* Lesson Box Body */
.lesson-box-body {
  display: none;
  padding: 0 var(--space-xl) var(--space-xl);
  border-top: 1px solid var(--border);
  animation: slideDown 0.25s ease;
}
.lesson-box.open .lesson-box-body {
  display: block;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.lesson-box-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: var(--bg-alt);
  border-radius: 10px;
  border-right: 3px solid var(--primary-400);
}

/* ── Lesson Contents List ───────────────────────────────────── */
.lesson-contents-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: var(--space-md) 0;
}

.lesson-box-empty {
  text-align: center;
  padding: var(--space-xl);
  color: var(--text-muted);
  font-size: 0.9rem;
  background: var(--bg-alt);
  border-radius: 10px;
  border: 1.5px dashed var(--border);
}

/* ── Lesson Content Item ─────────────────────────────────────── */
.lesson-content-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px var(--space-md);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.2s;
}
.lesson-content-item:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
  transform: translateX(-2px);
}

.lci-drag-handle {
  color: var(--text-muted);
  cursor: grab;
  font-size: 1rem;
  opacity: 0.4;
  transition: opacity 0.2s;
  flex-shrink: 0;
  padding: 2px 4px;
}
.lci-drag-handle:hover { opacity: 0.9; }

.lci-order {
  width: 24px;
  height: 24px;
  background: var(--neutral-200);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.lci-type-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.lci-info {
  flex: 1;
  min-width: 0;
}
.lci-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lci-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 3px;
}
.lci-duration {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.lci-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ── Small Icon Button ──────────────────────────────────────── */
.btn-icon-sm {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.btn-icon-sm:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
  color: var(--primary-600);
  transform: scale(1.08);
}
.btn-icon-sm.danger:hover {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}

/* ── Lesson Box Footer ──────────────────────────────────────── */
.lesson-box-footer {
  display: flex;
  justify-content: flex-start;
  padding-top: var(--space-md);
  border-top: 1px dashed var(--border);
  margin-top: var(--space-sm);
}

/* ── Admin Modals ───────────────────────────────────────────── */
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,20,15,0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  padding: var(--space-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.admin-modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.admin-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px rgba(0,0,0,0.3);
  transform: scale(0.94) translateY(12px);
  transition: transform 0.3s;
}
.admin-modal-overlay.show .admin-modal {
  transform: scale(1) translateY(0);
}
.admin-modal-sm {
  max-width: 400px;
}

.admin-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border);
}
.admin-modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.admin-modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-muted);
  transition: all 0.2s;
}
.admin-modal-close:hover {
  background: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger);
}

.admin-modal-body {
  padding: var(--space-xl);
}

.admin-modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: 0 0 20px 20px;
}

/* ── Content Type Grid ──────────────────────────────────────── */
.content-type-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: var(--space-sm);
}

.content-type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: var(--space-sm) var(--space-xs);
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.content-type-btn:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
}
.content-type-btn.active {
  border-color: var(--primary-500);
  background: var(--primary-50);
  box-shadow: 0 0 0 3px var(--primary-100);
}
.ct-icon {
  font-size: 1.6rem;
}
.ct-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  line-height: 1.2;
}
.content-type-btn.active .ct-label {
  color: var(--primary-600);
}

/* ── Badge Ghost ────────────────────────────────────────────── */
.badge-ghost {
  background: var(--bg-alt);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ── Danger Button ──────────────────────────────────────────── */
.btn-danger {
  background: var(--danger);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-danger:hover {
  background: #c43b4c;
  transform: translateY(-1px);
}

/* ── Responsive Admin ───────────────────────────────────────── */
@media (max-width: 768px) {
  .admin-page-header {
    flex-direction: column;
    align-items: stretch;
  }
  .admin-header-stats {
    justify-content: center;
  }
  .admin-course-row {
    flex-wrap: wrap;
  }
  .admin-course-page-header {
    flex-direction: column;
    align-items: stretch;
  }
  .admin-course-page-info {
    flex-direction: column;
    text-align: center;
  }
  .admin-course-page-meta {
    justify-content: center;
  }
  .lesson-box-header {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  .lesson-box-actions {
    width: 100%;
    justify-content: flex-end;
    padding-top: var(--space-sm);
    border-top: 1px dashed var(--border);
  }
  .content-type-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .admin-course-row-actions {
    width: 100%;
  }
  .admin-course-row-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .lci-title {
    white-space: normal;
  }
}

/* ═══════════════════════════════════════════════════════════════
   LANDING PAGE ENHANCEMENTS — المنصة الرئيسية
   ═══════════════════════════════════════════════════════════════ */

/* ── Trust / Quick Highlights Bar ────────────────────────────── */
.trust-bar {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--space-xl) 0;
  box-shadow: var(--shadow-xs);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  background: #FFFFFF;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: all var(--duration-normal) var(--ease-out);
}
.trust-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-400);
}
.trust-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-md);
  background: #FEF3C7;
  color: #B45309;
  border: 1px solid #FDE68A;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.trust-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 2px;
}
.trust-desc {
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.4;
}

/* ── Stages Grid ─────────────────────────────────────────────── */
.stages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
.stage-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  transition: all var(--duration-normal) var(--ease-spring);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.stage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #9A3412 0%, #D97706 50%, #F59E0B 100%);
  opacity: 1;
}
.stage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-400);
}
.stage-icon {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  background: linear-gradient(135deg, #FEF3C7, #FDE68A);
  color: #92400E;
  border: 1px solid #FCD34D;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.1rem;
  margin-bottom: var(--space-md);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.2);
  transition: transform var(--duration-normal) var(--ease-spring);
}
.stage-card:hover .stage-icon {
  transform: scale(1.1) rotate(5deg);
}
.stage-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: #0F172A;
}
.stage-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  flex: 1;
}
.stage-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: var(--space-lg);
}
.stage-tag-pill {
  font-size: 0.76rem;
  font-weight: 700;
  background: #F7F4EE;
  color: #0F172A;
  border: 1px solid #E5DDD0;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}
.stage-btn {
  width: 100%;
}

/* ── Steps Section ───────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  position: relative;
}
.step-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-out);
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-400);
}
.step-badge {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #B45309, #D97706, #F59E0B);
  color: white;
  font-weight: 900;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(217, 119, 6, 0.4);
  border: 2px solid white;
}
.step-icon {
  font-size: 2.6rem;
  margin-top: 10px;
  margin-bottom: var(--space-md);
}
.step-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Teacher Bio Section ─────────────────────────────────────── */
.teacher-section-card {
  background: linear-gradient(150deg, #070B14 0%, #0F172A 60%, #0A2216 100%);
  color: #FFFFFF;
  border: 1px solid rgba(217, 119, 6, 0.35);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl) var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--space-3xl);
  align-items: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45), 0 0 24px rgba(217, 119, 6, 0.2);
  position: relative;
  overflow: hidden;
}
.teacher-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}
.teacher-avatar-circle {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: white;
  box-shadow: 0 12px 36px rgba(217, 119, 6, 0.4);
  border: 4px solid #D97706;
  margin-bottom: var(--space-md);
}
.teacher-name-badge {
  font-size: 1.45rem;
  font-weight: 900;
  color: #FFFFFF;
}
.teacher-role-badge {
  font-size: 0.92rem;
  color: var(--accent-300);
  font-weight: 700;
  margin-top: 2px;
}
.teacher-content h2 {
  font-size: 1.85rem;
  font-weight: 900;
  color: #FFFFFF;
  margin-bottom: var(--space-md);
}
.teacher-content p {
  font-size: 1rem;
  line-height: 1.9;
  color: #CBD5E1;
  margin-bottom: var(--space-lg);
}
.teacher-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--space-xl);
}
.teacher-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #1E293B;
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  color: #F1F5F9;
}

/* ── FAQ Accordion ───────────────────────────────────────────── */
.faq-grid {
  max-width: 820px;
  margin: var(--space-2xl) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-fast) var(--ease-out);
}
.faq-item.open {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: right;
  font-family: var(--font-ar);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--duration-fast);
}
.faq-question:hover {
  color: var(--primary-500);
}
.faq-icon {
  font-size: 1.2rem;
  color: var(--primary-500);
  transition: transform var(--duration-normal) var(--ease-spring);
}
.faq-item.open .faq-icon {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out), padding var(--duration-normal);
  padding: 0 24px;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px 24px;
}
.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border-light);
  padding-top: 14px;
}

/* ── Floating WhatsApp Support ───────────────────────────────── */
.floating-support-btn {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 8900;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: #fff;
  border-radius: 50px;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-ar);
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(37,211,102,0.35);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s;
  text-decoration: none;
  user-select: none;
}
.floating-support-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(37,211,102,0.5);
  color: #fff;
}
.floating-support-icon {
  font-size: 20px;
}

/* ── Home Search & Filters ───────────────────────────────────── */
.home-search-box {
  max-width: 520px;
  margin: 0 auto var(--space-xl);
  position: relative;
}
.home-search-input {
  width: 100%;
  padding: 14px 48px 14px 20px;
  border: 2px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
  font-family: var(--font-ar);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  outline: none;
  transition: all var(--duration-fast);
  box-shadow: var(--shadow-xs);
}
.home-search-input:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px var(--primary-50);
}
.home-search-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--text-muted);
  pointer-events: none;
}

/* ── Course Card Enrolled Indicator ──────────────────────────── */
.course-enrolled-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--success-light);
  color: var(--success);
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-top: 6px;
}

/* ── Responsive Additions ────────────────────────────────────── */
@media (max-width: 992px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  .teacher-section-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
  }
  .teacher-pills {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
  .floating-support-btn {
    bottom: 16px;
    right: 16px;
    padding: 10px 14px;
    font-size: 12px;
  }
  .teacher-avatar-circle {
    width: 120px;
    height: 120px;
    font-size: 3.5rem;
  }
}



/* ═══════════════════════════════════════════════════════════════
   DARK MODE — Surface & Component Overrides
   ═══════════════════════════════════════════════════════════════ */

/* Body */
[data-theme="dark"] body {
  background: var(--bg);
  color: var(--text-primary);
}
[data-theme="dark"] ::selection {
  background: var(--primary-200);
  color: var(--primary-800);
}
[data-theme="dark"] ::-webkit-scrollbar-track { background: #1A1F14; }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #3A4030; }

/* Page section alternating backgrounds */
[data-theme="dark"] .page-section:nth-child(even) { background: var(--bg-alt); }

/* Cards */
[data-theme="dark"] .card {
  background: var(--surface);
  border-color: var(--border);
}
[data-theme="dark"] .course-card { background: var(--surface); border-color: var(--border); }
[data-theme="dark"] .course-card-body { background: var(--surface); }
[data-theme="dark"] .course-card-footer { background: var(--surface-warm); }
[data-theme="dark"] .course-card-title { color: var(--text-primary); }
[data-theme="dark"] .course-card-grade {
  background: rgba(180,83,9,0.18);
  color: #E8A928;
  border-color: rgba(180,83,9,0.3);
}

/* Mobile menu */
[data-theme="dark"] .mobile-menu { background: var(--surface); }
[data-theme="dark"] .mobile-menu-header { border-bottom-color: var(--border); }
[data-theme="dark"] .mobile-menu-footer { border-top-color: var(--border); }
[data-theme="dark"] .mobile-nav-link { color: var(--text-secondary); }
[data-theme="dark"] .mobile-nav-link:hover,
[data-theme="dark"] .mobile-nav-link.active {
  background: var(--primary-50);
  color: var(--primary-400);
}
[data-theme="dark"] .mobile-menu-close { color: var(--text-secondary); }

/* Avatar dropdown */
[data-theme="dark"] .avatar-dropdown {
  background: #1E2416;
  border-color: var(--border);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
[data-theme="dark"] .dropdown-header { border-bottom-color: var(--border); }
[data-theme="dark"] .dropdown-item { color: var(--text-secondary); }
[data-theme="dark"] .dropdown-item:hover { background: var(--primary-50); color: var(--primary-400); }
[data-theme="dark"] .dropdown-divider { background: var(--border); }

/* Forms & Inputs */
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text-primary);
}
[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-select:focus {
  border-color: var(--primary-400);
  box-shadow: 0 0 0 4px rgba(90,191,122,0.15);
}
[data-theme="dark"] .form-label { color: var(--text-primary); }

/* Section badges */
[data-theme="dark"] .section-badge {
  background: var(--primary-50);
  color: var(--primary-400);
}

/* Trust bar */
[data-theme="dark"] .trust-bar { background: var(--bg-alt); }

/* FAQ */
[data-theme="dark"] .faq-item { background: var(--surface); border-color: var(--border-light); }
[data-theme="dark"] .faq-item.open { border-color: var(--primary-400); }
[data-theme="dark"] .faq-question { color: var(--text-primary); }
[data-theme="dark"] .faq-answer p { border-top-color: var(--border); color: var(--text-secondary); }

/* Step cards */
[data-theme="dark"] .step-card {
  background: var(--surface);
  border-color: var(--border);
}
[data-theme="dark"] .step-card h3 { color: var(--text-primary); }
[data-theme="dark"] .step-badge { border-color: var(--surface); }

/* Course filter */
[data-theme="dark"] .filter-search input {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text-primary);
}
[data-theme="dark"] .filter-chip {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text-primary);
}
[data-theme="dark"] .filter-chip.active {
  background: var(--primary-500);
  color: #fff;
  border-color: var(--primary-400);
}

/* Course details hero */
[data-theme="dark"] .course-details-hero {
  background: linear-gradient(160deg, #1A1F14, #1C2416, #1E2814);
}

/* Course tabs */
[data-theme="dark"] .course-tabs { background: var(--surface); }
[data-theme="dark"] .course-tab { color: var(--text-secondary); }
[data-theme="dark"] .course-tab.active { background: var(--bg); color: var(--primary-400); }

/* Lesson sidebar — الـ sidebar تبقى داكنة دائماً (أصلها داكن) */
[data-theme="dark"] .lesson-sidebar { background: #080D1A; border-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .lesson-sidebar-header { background: #04070F; }
[data-theme="dark"] .lesson-content { background: var(--bg); }
[data-theme="dark"] .lesson-index { background: var(--surface); }
[data-theme="dark"] .lesson-item { border-bottom-color: var(--border); }
[data-theme="dark"] .lesson-item:hover { background: var(--surface-hover); }

/* Progress bar track */
[data-theme="dark"] .progress-bar { background: #2A3020; }

/* Auth pages */
[data-theme="dark"] .auth-card {
  background: var(--surface);
  border-color: var(--border);
}
[data-theme="dark"] .auth-bg {
  background: linear-gradient(160deg, #0E1509, #121808);
}

/* Dashboard stat cards */
[data-theme="dark"] .stat-card-dashboard {
  background: var(--surface);
  border-color: var(--border);
}

/* Stage tag pill */
[data-theme="dark"] .stage-tag-pill {
  background: var(--surface);
  color: var(--text-primary);
  border-color: var(--border);
}

/* Home search */
[data-theme="dark"] .home-search-input {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text-primary);
}

/* Btn-outline in dark */
[data-theme="dark"] .btn-outline {
  color: var(--primary-400);
  border-color: var(--primary-400);
}
[data-theme="dark"] .btn-outline:hover {
  background: rgba(90,191,122,0.12);
}

/* Dashboard password modal */
[data-theme="dark"] #dashPwModal { background: #1E2416; color: var(--text-primary); }
[data-theme="dark"] #dashPwModal h3 { color: var(--text-primary); }
[data-theme="dark"] #dashPwInput {
  background: var(--surface);
  color: var(--text-primary);
  border-color: var(--border);
}
[data-theme="dark"] #dashPwCancel { background: var(--surface); color: var(--text-secondary); }

/* Footer */
[data-theme="dark"] .footer {
  background: #0E1209;
  border-top-color: var(--border);
}
[data-theme="dark"] .footer-bottom { border-top-color: var(--border); }

/* ═══════════════════════════════════════════════════════════════
   HERO LUXURY — البنر الرئيسي الفخم (هوية الأخضر الزمردي والبيج والذهبي)
   ═══════════════════════════════════════════════════════════════ */
.hero-luxury {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(145deg, #07150c 0%, #0c2316 35%, #102e1d 65%, #08170e 100%);
  padding: 60px 0 55px;
  color: #ffffff;
}

/* ═══════════════════════════════════════════════════════════════
   HB — HERO BANNER Modern Redesign (Orange & White Palette)
   ═══════════════════════════════════════════════════════════════ */

/* Section Container */
.hb-section {
  position: relative;
  background: linear-gradient(155deg, #FFFFFF 0%, #F8FAFC 45%, #FFF7ED 85%, #F8FAFC 100%);
  padding-top: calc(var(--header-height, 70px) + 32px);
  padding-bottom: 48px;
  overflow: hidden;
  direction: ltr;
}

[data-theme="dark"] .hb-section {
  background: linear-gradient(155deg, #0B1120 0%, #0F172A 50%, #1E293B 100%);
}

/* Background effects */
.hb-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hb-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(75px);
}
.hb-orb-1 {
  width: 440px; height: 440px;
  top: -120px; left: -80px;
  background: radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 70%);
}
.hb-orb-2 {
  width: 380px; height: 380px;
  bottom: -100px; right: -60px;
  background: radial-gradient(circle, rgba(234,88,12,0.09) 0%, transparent 70%);
}

/* Floating Math Tags */
.hb-float {
  position: absolute;
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: #EA580C;
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(249,115,22,0.22);
  border-radius: 99px;
  padding: 5px 14px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 4px 14px rgba(249,115,22,0.12);
  animation: hbFloat 9s ease-in-out infinite;
  user-select: none;
}
[data-theme="dark"] .hb-float {
  background: rgba(30,41,59,0.85);
  border-color: rgba(249,115,22,0.35);
  color: #FB923C;
}
.hb-f1 { top: 12%; left: 3%;   animation-delay: 0s;   }
.hb-f2 { top: 10%; right: 3%;  animation-delay: 1.5s; }
.hb-f3 { bottom: 18%; left: 2%; animation-delay: 2.5s; font-size: 0.72rem; }
.hb-f4 { bottom: 25%; right: 2%; animation-delay: 0.8s; }
.hb-f5 { top: 48%; left: 2%;   animation-delay: 3.5s; }
.hb-f6 { top: 58%; right: 2%;  animation-delay: 1.2s; }
@keyframes hbFloat {
  0%,100% { transform: translateY(0); opacity: 0.6; }
  50%      { transform: translateY(-12px); opacity: 1; }
}

/* Container */
.hb-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Main Body Grid */
.hb-body {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  align-items: center;
  gap: 48px;
  margin-top: 4px;
}

/* Photo Column */
.hb-img-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

/* Photo Frame */
.hb-img-frame {
  position: relative;
  width: 100%;
  max-width: 420px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow:
    0 24px 56px rgba(15,23,42,0.12),
    0 6px 18px rgba(249,115,22,0.14);
  background: #0F172A;
  border: 3px solid rgba(255,255,255,0.85);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
[data-theme="dark"] .hb-img-frame {
  border-color: rgba(249,115,22,0.25);
  box-shadow:
    0 24px 56px rgba(0,0,0,0.45),
    0 6px 18px rgba(249,115,22,0.25);
}
.hb-img-frame:hover {
  transform: translateY(-4px);
  box-shadow:
    0 32px 68px rgba(15,23,42,0.18),
    0 8px 24px rgba(249,115,22,0.25);
}

.hb-img {
  width: 100%;
  aspect-ratio: 3 / 4;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  object-position: center 15%;
  display: block;
  transition: transform 0.5s ease;
}
.hb-img-frame:hover .hb-img {
  transform: scale(1.025);
}

/* Text & Actions Side */
.hb-text-side {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  justify-content: center;
}

/* Heading */
.hb-heading {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: 0 0 16px;
  line-height: 1.2;
  width: 100%;
}
.hb-h-prefix {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.hb-h-name {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 900;
  background: linear-gradient(120deg, #F97316 0%, #EA580C 50%, #C2410C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.15;
  letter-spacing: -0.5px;
}
.hb-h-suffix {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 4px;
}

/* Description */
.hb-desc {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 0 20px;
  max-width: 420px;
  font-weight: 500;
}

/* Pills */
.hb-pills {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}
.hb-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #FFFFFF;
  border: 1px solid rgba(249,115,22,0.25);
  border-radius: 99px;
  padding: 7px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #EA580C;
  box-shadow: 0 2px 8px rgba(15,23,42,0.04);
  white-space: nowrap;
}
[data-theme="dark"] .hb-pill {
  background: #1E293B;
  border-color: rgba(249,115,22,0.35);
  color: #FB923C;
}

/* Action Buttons */
.hb-btns {
  display: flex;
  flex-direction: row;
  gap: 14px;
  flex-wrap: wrap;
}

.hb-btn-orange {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 99px;
  font-size: 0.95rem;
  font-weight: 800;
  color: #FFFFFF;
  background: linear-gradient(135deg, #F97316 0%, #EA580C 100%);
  border: none;
  box-shadow: 0 6px 22px rgba(249,115,22,0.38);
  transition: all 0.25s ease;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.hb-btn-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(249,115,22,0.52);
  color: #FFFFFF;
  background: linear-gradient(135deg, #EA580C 0%, #C2410C 100%);
}
.hb-arrow {
  font-size: 1rem;
  display: inline-block;
  transition: transform 0.2s ease;
}
.hb-btn-orange:hover .hb-arrow { transform: translateX(4px); }

.hb-btn-green {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 99px;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  background: var(--surface);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.hb-btn-green:hover {
  transform: translateY(-2px);
  border-color: #F97316;
  color: #EA580C;
  box-shadow: var(--shadow-md);
}

/* ══ Responsive ══ */
@media (max-width: 860px) {
  .hb-body {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 0;
  }
  .hb-img-side { order: 1; max-width: 360px; margin: 0 auto; width: 100%; }
  .hb-text-side { order: 2; align-items: center; text-align: center; }
  .hb-desc { max-width: 100%; }
  .hb-pills { justify-content: center; }
  .hb-btns { justify-content: center; }
  .hb-heading { align-items: center; }
  .hb-img { height: auto; aspect-ratio: 3 / 4; max-height: 420px; }
}
@media (max-width: 560px) {
  .hb-section { padding-top: calc(var(--header-height, 70px) + 14px); padding-bottom: 24px; }
  .hb-container { padding: 0 16px; }
  .hb-img-side { max-width: 310px; }
  .hb-img { height: auto; aspect-ratio: 3 / 4; max-height: 380px; }
  .hb-btns { flex-direction: column; width: 100%; }
  .hb-btn-orange, .hb-btn-green { width: 100%; justify-content: center; padding: 13px 20px; }
  .hb-float { display: none; }
  .hb-h-name { font-size: 1.95rem; }
}

.hero-lux-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.hero-lux-mesh {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 18% 22%, rgba(251, 146, 60, 0.22) 0%, transparent 50%),
    radial-gradient(circle at 82% 65%, rgba(245, 158, 11, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(234, 88, 12, 0.25) 0%, transparent 45%),
    radial-gradient(circle at 50% 15%, rgba(217, 119, 6, 0.14) 0%, transparent 50%);
}

.hero-lux-math-grid {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle, rgba(245, 158, 11, 0.10) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.55;
}

.hero-lux-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  animation: heroOrbPulse 10s ease-in-out infinite alternate;
}
.hero-lux-orb-1 {
  width: 500px; height: 500px;
  top: -140px; right: -100px;
  background: radial-gradient(circle, rgba(251, 146, 60, 0.28) 0%, transparent 70%);
  animation-duration: 9s;
}
.hero-lux-orb-2 {
  width: 440px; height: 440px;
  bottom: -120px; left: -80px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.22) 0%, transparent 70%);
  animation-duration: 11s;
  animation-delay: 2s;
}
.hero-lux-orb-3 {
  width: 320px; height: 320px;
  top: 35%; left: 35%;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.16) 0%, transparent 70%);
  animation-duration: 13s;
  animation-delay: 4s;
}

@keyframes heroOrbPulse {
  0%   { transform: scale(1) translate(0, 0); opacity: 0.45; }
  50%  { transform: scale(1.18) translate(15px, -10px); opacity: 0.75; }
  100% { transform: scale(0.95) translate(-10px, 15px); opacity: 0.5; }
}

/* Floating Animated Math Badges */
.hero-math-badge {
  position: absolute;
  font-family: 'Inter', 'Tajawal', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(8, 24, 15, 0.65);
  border: 1px solid rgba(245, 158, 11, 0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 4px 14px;
  border-radius: 99px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  animation: luxFloatMath 10s ease-in-out infinite;
  user-select: none;
}
.hmb-1 { top: 12%; right: 42%; animation-delay: 0.2s; color: rgba(251, 191, 36, 0.85); border-color: rgba(245, 158, 11, 0.3); }
.hmb-2 { top: 22%; left: 8%; animation-delay: 1.5s; color: rgba(134, 239, 172, 0.85); border-color: rgba(34, 197, 94, 0.3); }
.hmb-3 { top: 78%; right: 48%; animation-delay: 3.1s; color: rgba(253, 224, 71, 0.85); border-color: rgba(245, 158, 11, 0.3); }
.hmb-4 { bottom: 14%; left: 12%; animation-delay: 0.8s; color: rgba(74, 222, 128, 0.85); border-color: rgba(34, 197, 94, 0.3); }
.hmb-5 { top: 15%; right: 8%; animation-delay: 2.2s; color: rgba(251, 191, 36, 0.85); border-color: rgba(245, 158, 11, 0.3); }
.hmb-6 { bottom: 24%; right: 6%; animation-delay: 4s; color: rgba(134, 239, 172, 0.85); border-color: rgba(34, 197, 94, 0.3); }
.hmb-7 { top: 48%; left: 3%; animation-delay: 1.8s; color: rgba(253, 224, 71, 0.85); border-color: rgba(245, 158, 11, 0.3); }

@keyframes luxFloatMath {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.4; }
  50%       { transform: translateY(-16px) rotate(2deg); opacity: 0.9; }
}

/* Grid Layout */
.hero-lux-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  align-items: center;
  gap: 48px;
  position: relative;
  z-index: 3;
}

/* Content Column */
.hero-lux-content {
  position: relative;
  z-index: 2;
}

.hero-lux-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.40);
  border-radius: 99px;
  padding: 6px 18px;
  font-size: 0.86rem;
  font-weight: 800;
  color: #fbbf24;
  margin-bottom: 16px;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.20);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.badge-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fbbf24;
  box-shadow: 0 0 8px 2px rgba(251, 191, 36, 0.8);
  animation: dotPulse 1.8s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.4); opacity: 0.6; }
}

/* ═══════════════════════════════════════════════════════════════
   HERO LUXURY CENTERED — البنر الرئيسي المنسق بدون قفزات أو مسافات زائدة
   ═══════════════════════════════════════════════════════════════ */
.hero-luxury.hero-centered {
  position: relative;
  min-height: auto !important;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  overflow: hidden;
  background: linear-gradient(145deg, #07150c 0%, #0c2316 35%, #102e1d 65%, #08170e 100%);
  padding: calc(var(--header-height) + 16px) 0 35px !important;
  color: #ffffff;
  text-align: center;
}

/* override for beige variant */
.hero-luxury.hero-centered.hero-beige {
  background: linear-gradient(160deg, #FAF7F2 0%, #F5EFE3 40%, #F0E8D8 70%, #F5EEE2 100%) !important;
  color: #1a1a1a !important;
  padding: calc(var(--header-height) + 20px) 0 40px !important;
  text-align: right;
}

.hero-centered-container {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 3;
  padding: 0 16px;
  width: 100%;
}

/* الشارة العلوية المنسقة */
.hero-lux-badge.center-badge {
  margin: 0 auto 8px;
  padding: 4px 14px;
  font-size: 0.8rem;
}

/* صندوق العنوان الثابت والمباشر */
.hero-title-box {
  width: 100%;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-heading-center {
  justify-content: center;
  text-align: center;
  margin: 0;
  font-size: 1.15rem; /* حجم الخط ~18px */
  font-weight: 800;
  line-height: 1.35;
  white-space: normal;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
}

/* ألوان الكلمات الفخمة المتناسقة والثابتة */
.lux-word {
  display: inline-block;
  font-weight: 800;
  letter-spacing: -0.2px;
  transition: transform 0.25s ease;
}

.word-intro {
  color: #FAF6F0;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.word-name-gold {
  background: linear-gradient(115deg, #FFF5D1 0%, #FDE047 35%, #F59E0B 70%, #D97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 10px rgba(245, 158, 11, 0.45));
  padding: 0 3px;
}

.word-math-sub {
  color: #E5DDD0;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

/* صورة الأستاذ مباشرة تحت العنوان بدون أي مسافات زائدة في السنتر */
.teacher-rect-wrap {
  position: relative;
  margin: 6px auto 12px;
  width: 100%;
  max-width: 420px;
  display: flex;
  justify-content: center;
}

.teacher-rect-card {
  position: relative;
  width: 100%;
  border-radius: 18px;
  padding: 5px;
  background: linear-gradient(135deg, 
    rgba(251, 146, 60, 0.45) 0%, 
    rgba(245, 158, 11, 0.40) 50%, 
    rgba(234, 88, 12, 0.50) 100%
  );
  box-shadow: 
    0 14px 35px rgba(0, 0, 0, 0.65), 
    0 0 20px rgba(34, 197, 94, 0.18),
    0 0 30px rgba(245, 158, 11, 0.18);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  display: flex;
  flex-direction: column;
}
.teacher-rect-card:hover {
  transform: translateY(-3px);
  box-shadow: 
    0 20px 45px rgba(0, 0, 0, 0.75), 
    0 0 30px rgba(34, 197, 94, 0.28),
    0 0 40px rgba(245, 158, 11, 0.25);
}

.teacher-rect-img-holder {
  width: 100%;
  height: 270px;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  background: #081a10;
}

.teacher-rect-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 10%;
  display: block;
  transition: transform 0.5s ease;
}
.teacher-rect-card:hover .teacher-rect-img {
  transform: scale(1.02);
}

.teacher-rect-badge-top {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(8, 24, 15, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(251, 191, 36, 0.55);
  border-radius: 99px;
  padding: 4px 10px;
  color: #fde047;
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 4px;
}

.teacher-rect-badge-top-left {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(8, 24, 15, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(74, 222, 128, 0.55);
  border-radius: 99px;
  padding: 4px 10px;
  color: #86efac;
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  z-index: 3;
}

.teacher-rect-nameplate {
  margin-top: 5px;
  background: rgba(8, 24, 15, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(245, 158, 11, 0.22);
  border-radius: 12px;
  padding: 8px 14px;
  text-align: center;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}

.t-crown {
  font-size: 1rem;
  margin-bottom: 0;
}
.t-name {
  font-size: 1.12rem;
  font-weight: 900;
  margin: 0 0 1px;
  background: linear-gradient(110deg, #ffffff 0%, #fde047 60%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.t-role {
  font-size: 0.78rem;
  color: #86efac;
  margin: 0;
  font-weight: 700;
}

/* الأزرار المباشرة تحت الصورة */
.hero-actions-center {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 4px;
  margin-bottom: 0;
}

/* أزرار البانر الفخمة */
.btn-lux-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, #9A3412 0%, #F97316 60%, #FB923C 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 6px 18px rgba(234, 88, 12, 0.45);
  transition: all 0.25s ease;
  cursor: pointer;
  text-decoration: none;
}
.btn-lux-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(234, 88, 12, 0.6);
  background: linear-gradient(135deg, #7C2D12 0%, #9A3412 60%, #F97316 100%);
  color: #fff;
}

.btn-lux-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 800;
  color: #FAF6F0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-lux-secondary:hover {
  transform: translateY(-2px);
  background: rgba(245, 158, 11, 0.18);
  border-color: rgba(245, 158, 11, 0.7);
  color: #FDE68A;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN FOR CENTERED HERO
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 992px) {
  .hero-luxury.hero-centered {
    padding: calc(var(--header-height) + 10px) 0 20px !important;
  }
  .teacher-rect-wrap {
    max-width: 360px;
  }
  .teacher-rect-img-holder {
    height: 230px;
  }
}

@media (max-width: 600px) {
  .hero-luxury.hero-centered {
    padding: calc(var(--header-height) + 6px) 0 16px !important;
  }
  .hero-centered-container {
    padding: 0 10px;
  }
  .hero-heading-center {
    font-size: 1.05rem; /* ~17-18px */
    line-height: 1.3;
    gap: 3px 5px;
  }
  .teacher-rect-wrap {
    max-width: 270px;
    margin: 5px auto 8px;
  }
  .teacher-rect-img-holder {
    height: 180px;
  }
  .teacher-rect-badge-top,
  .teacher-rect-badge-top-left {
    padding: 3px 8px;
    font-size: 0.65rem;
    top: 6px;
  }
  .teacher-rect-badge-top { right: 6px; }
  .teacher-rect-badge-top-left { left: 6px; }
  .teacher-rect-nameplate {
    padding: 6px 10px;
    margin-top: 4px;
  }
  .t-crown {
    font-size: 0.95rem;
  }
  .t-name {
    font-size: 0.98rem;
  }
  .t-role {
    font-size: 0.68rem;
  }
  .hero-math-badge {
    display: none;
  }
  .hero-actions-center {
    flex-direction: column;
    width: 100%;
    gap: 7px;
    margin-top: 4px;
    margin-bottom: 0;
  }
  .btn-lux-primary, .btn-lux-secondary {
    width: 100%;
    justify-content: center;
    padding: 9px 16px;
    font-size: 0.84rem;
  }
}

/* ═══════════════════════════════════════════════════════════════
   HOME COURSES SECTION
   ═══════════════════════════════════════════════════════════════ */
.home-courses-section {
  background: var(--bg-alt);
  padding: var(--space-3xl) 0;
}
.home-courses-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}
.home-courses-header .home-search-box {
  margin: var(--space-lg) auto var(--space-lg);
  max-width: 560px;
}
.home-courses-header .filter-chips {
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--space-lg);
}

/* ═══════════════════════════════════════════════════════════════
   PREMIUM COURSE CARD (pcc) — كرت الكورس الاحترافي
   ═══════════════════════════════════════════════════════════════ */
/* ═══════════════════════════════════════════════════════════════
   PREMIUM COURSE CARDS — v3.0 Professional Redesign
   ═══════════════════════════════════════════════════════════════ */

.courses-grid,
.premium-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 26px;
  align-items: stretch;
}

/* ── الكرت الرئيسي (Professional & High-Contrast) ── */
.pcc-wrap {
  background: #FFFFFF;
  border-radius: 22px;
  overflow: hidden;
  cursor: pointer;
  box-shadow:
    0 1px 3px rgba(15, 23, 42, 0.04),
    0 8px 24px rgba(15, 23, 42, 0.07),
    0 20px 48px rgba(15, 23, 42, 0.05);
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.25s ease;
  display: flex;
  flex-direction: column;
  border: 1.5px solid rgba(226, 232, 240, 0.95);
  position: relative;
  isolation: isolate;
  height: 100%;
}

.pcc-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 22px;
  background: linear-gradient(
    145deg,
    rgba(255,255,255,0.4) 0%,
    rgba(255,255,255,0) 60%
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 10;
}

.pcc-wrap:hover {
  transform: translateY(-8px) scale(1.012);
  box-shadow:
    0 12px 32px -4px rgba(15, 23, 42, 0.14),
    0 24px 56px -8px rgba(27, 92, 58, 0.16),
    0 0 0 1.5px rgba(27, 92, 58, 0.35);
  border-color: rgba(27, 92, 58, 0.35);
}

.pcc-wrap:hover::before {
  opacity: 1;
}

/* ── منطقة الصورة — 70% من الواجهة البصرية ── */
.pcc-image-zone {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10.5;
  background: linear-gradient(135deg, #0b1f14 0%, #153e28 50%, #0d281a 100%);
  overflow: hidden;
  flex-shrink: 0;
}

/* خلفية ضبابية تملأ أي فراغات وتحافظ على تدرج غني */
.pcc-img-backdrop {
  position: absolute;
  inset: -15px;
  background-size: cover;
  background-position: center;
  filter: blur(18px) brightness(0.6);
  opacity: 0.65;
  transform: scale(1.15);
  pointer-events: none;
  z-index: 0;
}

.pcc-img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  z-index: 1;
  transition:
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.35s ease;
}

.pcc-wrap:hover .pcc-img {
  transform: scale(1.05);
  filter: brightness(1.03) contrast(1.02);
}

.pcc-img-fallback {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0b1f14 0%, #1b5c3a 50%, #0d281a 100%);
  z-index: 1;
  overflow: hidden;
}

.pcc-fallback-glow {
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.35) 0%, transparent 70%);
  filter: blur(20px);
}

.pcc-fallback-icon {
  font-size: 4.2rem;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

/* طبقة التدرج اللوني للدمج الاحترافي */
.pcc-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.28) 0%,
    rgba(0, 0, 0, 0) 35%,
    rgba(0, 0, 0, 0.62) 100%
  );
  pointer-events: none;
  z-index: 2;
  transition: opacity 0.35s ease;
}

.pcc-wrap:hover .pcc-overlay {
  opacity: 0.88;
}

/* ── شارات الحالة المتميزة (Status Badges) ── */
.pcc-top-badges {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
  z-index: 4;
}

.pcc-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 800;
  font-family: 'Tajawal', sans-serif;
  letter-spacing: 0.3px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.22);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  color: #FFFFFF;
}

.pcc-wrap:hover .pcc-badge {
  transform: translateY(-1px);
}

.pcc-badge-icon {
  font-size: 0.8rem;
  line-height: 1;
  display: inline-flex;
}

.pcc-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 8px #ffffff;
  display: inline-block;
}

/* Badge — FREE */
.pcc-badge-free {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.95), rgba(5, 150, 105, 0.95));
  box-shadow: 0 3px 12px rgba(16, 185, 129, 0.45);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Badge — MOST VIEWED */
.pcc-badge-popular {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.95), rgba(220, 38, 38, 0.95));
  box-shadow: 0 3px 12px rgba(239, 68, 68, 0.45);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Badge — PAID */
.pcc-badge-paid {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(29, 78, 216, 0.95));
  box-shadow: 0 3px 12px rgba(37, 99, 235, 0.45);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Badge — مشترك */
.pcc-badge-enrolled {
  background: linear-gradient(135deg, rgba(217, 119, 6, 0.95), rgba(180, 83, 9, 0.95));
  box-shadow: 0 3px 12px rgba(217, 119, 6, 0.45);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Badge — كورس مجمع */
.pcc-badge-bundle {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.95), rgba(109, 40, 217, 0.95));
  box-shadow: 0 3px 12px rgba(124, 58, 237, 0.45);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Badge — المرحلة / الصف */
.pcc-badge-grade {
  background: rgba(15, 23, 42, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* الشريط السفلي داخل الصورة (التقييم والمرحلة) */
.pcc-image-bottom-bar {
  position: absolute;
  bottom: 10px;
  left: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  z-index: 4;
}

.pcc-rating-chip {
  background: rgba(0, 0, 0, 0.65);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 50px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.pcc-grade-chip {
  background: rgba(0, 0, 0, 0.65);
  color: #f1f5f9;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* ── منطقة المعلومات — 30% مساحة المحتوى ── */
.pcc-info-zone {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  background: #FFFFFF;
  justify-content: space-between;
  position: relative;
}

.pcc-info-top {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pcc-grade-line {
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--primary-600, #166534);
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pcc-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #16a34a;
  display: inline-block;
  flex-shrink: 0;
}

.pcc-title {
  font-family: 'Tajawal', sans-serif;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--text-primary, #0f172a);
  line-height: 1.42;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

.pcc-wrap:hover .pcc-title {
  color: var(--primary-600, #15803d);
}

/* وصف الكورس الحقيقي */
.pcc-desc {
  font-size: 0.79rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.55;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pcc-meta-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

.pcc-meta-chip {
  font-size: 0.7rem;
  color: var(--text-muted, #475569);
  font-weight: 700;
  background: var(--bg, #f8fafc);
  padding: 3px 9px;
  border-radius: 50px;
  border: 1px solid var(--border, #e2e8f0);
  transition: all 0.2s ease;
}

.pcc-wrap:hover .pcc-meta-chip {
  background: #f0fdf4;
  border-color: #bbf7d0;
  color: #166534;
}

.pcc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1.5px solid var(--border-light, #f1f5f9);
}

.pcc-price-group {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.pcc-price-old {
  font-size: 0.76rem;
  color: #94a3b8;
  text-decoration: line-through;
  line-height: 1;
  font-weight: 600;
}

.pcc-price {
  font-family: 'Tajawal', sans-serif;
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--text-primary, #0f172a);
  line-height: 1;
}

.pcc-price-free {
  color: #16a34a;
  font-size: 1.05rem;
  font-weight: 900;
}

.pcc-currency {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-muted, #64748b);
  margin-right: 2px;
}

/* زر الـ CTA */
.pcc-action-btn {
  font-family: 'Tajawal', sans-serif;
  font-weight: 800;
  font-size: 0.78rem;
  padding: 8px 16px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
  letter-spacing: 0.2px;
  position: relative;
  overflow: hidden;
}

.pcc-action-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  filter: brightness(1.06);
}

.pcc-action-btn:active {
  transform: translateY(0) scale(0.99);
}

.pcc-action-free {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.pcc-action-enrolled {
  background: linear-gradient(135deg, #15803d, #16a34a);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.3);
}

.pcc-action-lock {
  background: linear-gradient(135deg, #1d4ed8, #3b82f6);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* ── Dark Mode ── */
[data-theme="dark"] .pcc-wrap {
  background: #111827;
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.3),
    0 8px 24px rgba(0, 0, 0, 0.4),
    0 20px 48px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .pcc-wrap:hover {
  border-color: rgba(52, 211, 153, 0.35);
  box-shadow:
    0 12px 32px -4px rgba(0, 0, 0, 0.5),
    0 24px 56px -8px rgba(27, 92, 58, 0.3),
    0 0 0 1.5px rgba(52, 211, 153, 0.3);
}

[data-theme="dark"] .pcc-info-zone {
  background: #111827;
}

[data-theme="dark"] .pcc-title {
  color: #f8fafc;
}

[data-theme="dark"] .pcc-wrap:hover .pcc-title {
  color: #4ade80;
}

[data-theme="dark"] .pcc-grade-line {
  color: #4ade80;
}

[data-theme="dark"] .pcc-desc {
  color: #94a3b8;
}

[data-theme="dark"] .pcc-meta-chip {
  background: #1e293b;
  border-color: #334155;
  color: #cbd5e1;
}

[data-theme="dark"] .pcc-wrap:hover .pcc-meta-chip {
  background: #143323;
  border-color: rgba(52, 211, 153, 0.3);
  color: #4ade80;
}

[data-theme="dark"] .pcc-footer {
  border-top-color: #1e293b;
}

[data-theme="dark"] .pcc-price {
  color: #f8fafc;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .courses-grid,
  .premium-courses-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .courses-grid,
  .premium-courses-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
  }
  .pcc-wrap {
    border-radius: 18px;
  }
  .pcc-image-zone {
    aspect-ratio: 16 / 10;
  }
  .pcc-info-zone {
    padding: 14px 15px 16px;
    gap: 8px;
  }
  .pcc-title {
    font-size: 0.98rem;
  }
}

@media (max-width: 540px) {
  .courses-grid,
  .premium-courses-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .pcc-wrap {
    border-radius: 18px;
    flex-direction: column;
  }
  .pcc-image-zone {
    aspect-ratio: 16 / 9.5;
  }
  .pcc-title {
    font-size: 1.02rem;
    -webkit-line-clamp: 2;
  }
  .pcc-info-zone {
    padding: 14px 16px 16px;
  }
  .pcc-action-btn {
    font-size: 0.76rem;
    padding: 7px 14px;
  }
  .pcc-price {
    font-size: 1.05rem;
  }
}

/* Dark mode hero */
[data-theme="dark"] .hero-luxury {
  background: linear-gradient(135deg, #03060f 0%, #080f22 35%, #0b152d 65%, #03060f 100%);
}
[data-theme="dark"] .home-courses-section { background: var(--bg-alt); }

[data-theme="dark"] .course-tabs {
  background: #111827;
  border-color: rgba(71, 85, 105, 0.65);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}
[data-theme="dark"] .course-tab {
  color: #cbd5e1;
}
[data-theme="dark"] .course-tab:hover {
  color: #86efac;
  background: rgba(22, 101, 52, 0.22);
  border-color: rgba(74, 222, 128, 0.24);
}
[data-theme="dark"] .course-tab.active {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: #ffffff;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER & DEVELOPER ATTRIBUTION STYLES (Natural in-page footer)
   ═══════════════════════════════════════════════════════════════ */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid rgba(30, 92, 58, 0.12);
  padding: 48px 0 24px;
  position: relative;
  z-index: 10;
}
[data-theme="dark"] .footer {
  background: #0b1120;
  border-top-color: rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}
@media (max-width: 540px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer-col a:hover {
  color: var(--primary-500);
  transform: translateX(-3px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 24px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
[data-theme="dark"] .footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.06);
}

.footer-copy {
  font-size: 0.85rem;
}

.footer-dev-credit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--text-secondary);
  background: rgba(30, 92, 58, 0.04);
  border: 1px solid rgba(30, 92, 58, 0.12);
  padding: 6px 14px;
  border-radius: 99px;
  backdrop-filter: blur(8px);
}
[data-theme="dark"] .footer-dev-credit {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
  color: #94a3b8;
}

.dev-name-link {
  color: #C2410C;
  font-weight: 800;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.dev-name-link:hover {
  color: #EA580C;
  text-decoration: underline;
}
[data-theme="dark"] .dev-name-link {
  color: #60a5fa;
}
[data-theme="dark"] .dev-name-link:hover {
  color: #93c5fd;
}

.dev-badge {
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 7px;
  background: linear-gradient(135deg, #C2410C, #EA580C);
  color: #fff;
  border-radius: 6px;
  letter-spacing: 0.5px;
}
[data-theme="dark"] .dev-badge {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.footer-admin-btn {
  background: transparent;
  border: none;
  color: rgba(100, 116, 139, 0.5);
  font-size: 0.72rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
  letter-spacing: 0.5px;
  margin-right: 4px;
}
.footer-admin-btn:hover {
  color: #1e293b;
  background: rgba(0, 0, 0, 0.05);
}
[data-theme="dark"] .footer-admin-btn {
  color: rgba(148, 163, 184, 0.45);
}
[data-theme="dark"] .footer-admin-btn:hover {
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.08);
}

.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  text-decoration: none;
  font-size: 1.15rem;
  opacity: 0.85;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.footer-social a:hover {
  transform: translateY(-2px) scale(1.1);
  opacity: 1;
}

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }
}

/* ================================================================
   Thumbnail-first video player + Quiz-gate styles
   ================================================================ */

/* Thumbnail overlay hover effect */
#yt-thumb-overlay:hover > div > div:first-child {
    transform: scale(1.1);
}
#yt-thumb-overlay > div > div:first-child {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
#yt-thumb-overlay:hover > div > div:first-child {
    box-shadow: 0 0 48px rgba(217, 119, 6, 0.9);
}
#yt-thumb-overlay img {
    transition: opacity 0.2s ease;
}
#yt-thumb-overlay:hover img {
    opacity: 1 !important;
}

/* Quiz-gate locked next-lesson block */
.quiz-gate-block {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

/* Result modal gate message */
#trmGateMsg {
    border-radius: 14px;
    padding: 12px 18px;
    font-size: 0.88rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 14px;
    transition: all 0.3s ease;
}