/* ============================================
   ONLINE COURSE PLATFORM - DESIGN SYSTEM
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400&family=Playfair+Display:wght@700;800;900&display=swap');

/* --- CSS Variables --- */
:root {
  /* Colors */
  --c-primary: #1B2A4A;
  --c-primary-light: #2D4373;
  --c-primary-dark: #0F1B33;
  --c-accent: #F26522;
  --c-accent-hover: #D9541A;
  --c-accent-light: #FFF0E8;
  --c-success: #0EAD69;
  --c-success-light: #E6F9F0;
  --c-warning: #F5A623;
  --c-danger: #E53E3E;
  --c-info: #3B82F6;

  /* Neutrals */
  --c-white: #FFFFFF;
  --c-bg: #F7F8FA;
  --c-bg-warm: #FEFCFB;
  --c-gray-50: #F9FAFB;
  --c-gray-100: #F3F4F6;
  --c-gray-200: #E5E7EB;
  --c-gray-300: #D1D5DB;
  --c-gray-400: #9CA3AF;
  --c-gray-500: #6B7280;
  --c-gray-600: #4B5563;
  --c-gray-700: #374151;
  --c-gray-800: #1F2937;
  --c-gray-900: #111827;
  --c-text: #1F2937;
  --c-text-light: #6B7280;
  --c-text-muted: #9CA3AF;

  /* Typography */
  --font-body: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  /* Sizing */
  --container-max: 1320px;
  --container-padding: 20px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-card: 0 2px 12px rgba(27,42,74,0.06);
  --shadow-card-hover: 0 8px 30px rgba(27,42,74,0.12);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.3s;
  --duration-slow: 0.5s;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 { line-height: 1.25; font-weight: 700; }

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.text-accent { color: var(--c-accent); }
.text-success { color: var(--c-success); }
.text-muted { color: var(--c-text-muted); }
.text-light { color: var(--c-text-light); }
.font-display { font-family: var(--font-display); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-xs { gap: 4px; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }
.gap-xl { gap: 32px; }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.line-clamp-2 {
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.938rem;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap; position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.1); opacity: 0;
  transition: opacity var(--duration-fast);
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--c-accent); color: var(--c-white);
  box-shadow: 0 2px 8px rgba(242,101,34,0.3);
}
.btn-primary:hover {
  background: var(--c-accent-hover);
  box-shadow: 0 4px 16px rgba(242,101,34,0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--c-primary); color: var(--c-white);
}
.btn-secondary:hover {
  background: var(--c-primary-light);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent; color: var(--c-primary);
  border: 2px solid var(--c-gray-200);
}
.btn-outline:hover {
  border-color: var(--c-primary); background: var(--c-gray-50);
}

.btn-ghost {
  background: transparent; color: var(--c-text-light);
  padding: 8px 16px;
}
.btn-ghost:hover { color: var(--c-primary); background: var(--c-gray-100); }

.btn-sm { padding: 8px 18px; font-size: 0.813rem; }
.btn-lg { padding: 16px 36px; font-size: 1.063rem; }
.btn-block { width: 100%; }
.btn-icon { padding: 10px; border-radius: var(--radius-sm); }
.btn-icon svg { width: 20px; height: 20px; }

/* --- Badges --- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em;
}
.badge-free { background: var(--c-success-light); color: var(--c-success); }
.badge-bestseller { background: #FEF3C7; color: #92400E; }
.badge-new { background: #EDE9FE; color: #6D28D9; }
.badge-hot { background: #FEE2E2; color: #DC2626; }
.badge-preview { background: var(--c-info); color: white; font-size: 0.688rem; padding: 2px 8px; }

/* --- Stars Rating --- */
.stars { display: inline-flex; gap: 2px; align-items: center; }
.stars .star { color: #FBBF24; font-size: 0.875rem; }
.stars .star.empty { color: var(--c-gray-300); }
.stars-value { font-weight: 700; color: var(--c-gray-800); margin-right: 4px; font-size: 0.875rem; }
.stars-count { color: var(--c-text-muted); font-size: 0.813rem; margin-left: 4px; }

/* --- Price --- */
.price { display: flex; align-items: baseline; gap: 8px; }
.price-current { font-size: 1.25rem; font-weight: 800; color: var(--c-gray-900); }
.price-original { font-size: 0.875rem; color: var(--c-text-muted); text-decoration: line-through; }
.price-free { font-size: 1.25rem; font-weight: 800; color: var(--c-success); }
.price-discount {
  font-size: 0.75rem; font-weight: 700; color: var(--c-accent);
  background: var(--c-accent-light); padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-gray-200);
  height: var(--header-height);
  transition: box-shadow var(--duration-normal);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; gap: 24px;
}

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--c-accent), #FF8F5E);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 900; font-size: 1.125rem;
}
.logo-text {
  font-weight: 800; font-size: 1.25rem; color: var(--c-primary);
  letter-spacing: -0.02em;
}
.logo-text span { color: var(--c-accent); }

/* Desktop Nav */
.nav-desktop { display: flex; align-items: center; gap: 4px; }
.nav-desktop a {
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 0.938rem; font-weight: 500; color: var(--c-gray-600);
  transition: all var(--duration-fast);
  position: relative;
}
.nav-desktop a:hover { color: var(--c-primary); background: var(--c-gray-50); }
.nav-desktop a.active { color: var(--c-accent); font-weight: 600; }

/* Nav Category Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.nav-dropdown-trigger svg { width: 16px; height: 16px; transition: transform var(--duration-fast); }
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }

.nav-dropdown-menu {
  position: absolute; top: 100%; left: 0;
  min-width: 260px; background: var(--c-white);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-gray-100);
  padding: 8px; opacity: 0; visibility: hidden;
  transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease-out);
}
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown-menu a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  font-size: 0.875rem;
}
.nav-dropdown-menu a:hover { background: var(--c-gray-50); }
.nav-dropdown-menu .cat-icon {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  background: var(--c-gray-100); display: flex;
  align-items: center; justify-content: center; font-size: 1.125rem; flex-shrink: 0;
}

/* Header Search */
.header-search {
  flex: 1; max-width: 480px; position: relative;
}
.header-search input {
  width: 100%; height: 44px; padding: 0 44px 0 16px;
  border-radius: var(--radius-full); border: 2px solid var(--c-gray-200);
  background: var(--c-gray-50); font-size: 0.875rem;
  transition: all var(--duration-fast);
  color: var(--c-text);
}
.header-search input::placeholder { color: var(--c-text-muted); }
.header-search input:focus {
  outline: none; border-color: var(--c-accent);
  background: var(--c-white); box-shadow: 0 0 0 3px rgba(242,101,34,0.1);
}
.header-search button {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 36px; height: 36px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-text-muted); transition: all var(--duration-fast);
}
.header-search button:hover { color: var(--c-accent); background: var(--c-accent-light); }

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.header-cart {
  position: relative; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--c-gray-600);
  transition: all var(--duration-fast);
}
.header-cart:hover { background: var(--c-gray-100); color: var(--c-primary); }
.header-cart svg { width: 22px; height: 22px; }
.cart-count {
  position: absolute; top: 4px; right: 4px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--c-accent); color: white;
  font-size: 0.625rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

.header-user {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 12px 4px 4px; border-radius: var(--radius-full);
  border: 2px solid var(--c-gray-200);
  transition: all var(--duration-fast); cursor: pointer;
}
.header-user:hover { border-color: var(--c-gray-300); background: var(--c-gray-50); }
.header-user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), #FF8F5E);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 0.75rem;
}
.header-user-name { font-size: 0.875rem; font-weight: 500; color: var(--c-gray-700); }

/* Auth Buttons (when logged out) */
.header-auth { display: flex; align-items: center; gap: 8px; }

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none; width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--c-gray-700);
}
.mobile-menu-toggle svg { width: 24px; height: 24px; }

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  display: none; position: fixed; inset: 0; z-index: 1100;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
  opacity: 0; transition: opacity var(--duration-normal);
}
.mobile-menu-overlay.active { opacity: 1; }

/* Mobile Menu Panel */
.mobile-menu {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: 300px; max-width: 85vw; z-index: 1200;
  background: var(--c-white); transform: translateX(-100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto; display: none; flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu.active { transform: translateX(0); }

.mobile-menu-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--c-gray-100);
}
.mobile-menu-close {
  width: 36px; height: 36px; display: flex;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--c-gray-500);
}

.mobile-menu-body { padding: 12px 16px; flex: 1; }
.mobile-menu-body .mobile-search {
  position: relative; margin-bottom: 16px;
}
.mobile-menu-body .mobile-search input {
  width: 100%; height: 44px; padding: 0 44px 0 16px;
  border-radius: var(--radius-sm); border: 2px solid var(--c-gray-200);
  font-size: 0.875rem; background: var(--c-gray-50);
}

.mobile-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: 0.938rem; font-weight: 500; color: var(--c-gray-700);
  transition: background var(--duration-fast);
}
.mobile-nav a:hover { background: var(--c-gray-50); }
.mobile-nav a.active { color: var(--c-accent); background: var(--c-accent-light); }
.mobile-nav-icon { width: 20px; height: 20px; color: var(--c-gray-400); }
.mobile-nav-divider { height: 1px; background: var(--c-gray-100); margin: 8px 0; }

.mobile-menu-footer {
  padding: 16px 20px; border-top: 1px solid var(--c-gray-100);
  display: flex; flex-direction: column; gap: 8px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--c-primary-dark); color: var(--c-gray-300);
  padding: 56px 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px; padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  font-size: 0.875rem; line-height: 1.7; margin-top: 16px;
  color: var(--c-gray-400); max-width: 300px;
}
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06); display: flex;
  align-items: center; justify-content: center;
  color: var(--c-gray-400); transition: all var(--duration-fast);
}
.footer-social a:hover { background: var(--c-accent); color: white; }

.footer-heading {
  font-size: 0.875rem; font-weight: 700; color: var(--c-white);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px;
}
.footer-links a {
  display: block; padding: 6px 0; font-size: 0.875rem;
  color: var(--c-gray-400); transition: color var(--duration-fast);
}
.footer-links a:hover { color: var(--c-accent); }

.footer-contact-item {
  display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.875rem;
  align-items: flex-start;
}
.footer-contact-item svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--c-accent); }

.footer-bottom {
  padding: 24px 0; display: flex;
  align-items: center; justify-content: space-between;
  font-size: 0.813rem; color: var(--c-gray-500);
}
.footer-payments { display: flex; gap: 12px; align-items: center; }
.footer-payments img { height: 28px; border-radius: 4px; opacity: 0.6; }

/* ============================================
   HERO SECTION (Homepage)
   ============================================ */
.hero {
  position: relative; background: var(--c-primary);
  overflow: hidden; padding: 60px 0 72px;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(242,101,34,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.1) 0%, transparent 50%);
}
.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px;
  background: linear-gradient(to top, var(--c-bg), transparent);
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px;
  align-items: center;
}

.hero-content { color: var(--c-white); }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1); backdrop-filter: blur(8px);
  font-size: 0.813rem; font-weight: 500; margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.1);
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-success); animation: pulse-dot 2s infinite; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; } 50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--font-display); font-size: 3.25rem;
  font-weight: 800; line-height: 1.15; margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero h1 .highlight {
  color: var(--c-accent);
  text-decoration: underline;
  text-decoration-color: rgba(242,101,34,0.4);
  text-underline-offset: 6px;
}

.hero-desc {
  font-size: 1.125rem; color: rgba(255,255,255,0.7);
  line-height: 1.7; margin-bottom: 24px; max-width: 480px;
}

.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

.hero-search {
  position: relative; max-width: 520px; margin-top: 28px;
}
.hero-search input {
  width: 100%; height: 56px; padding: 0 140px 0 24px;
  border-radius: var(--radius-lg); border: 2px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08); backdrop-filter: blur(8px);
  color: white; font-size: 1rem;
}
.hero-search input::placeholder { color: rgba(255,255,255,0.5); }
.hero-search input:focus {
  outline: none; border-color: var(--c-accent);
  background: rgba(255,255,255,0.12);
}
.hero-search .btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  height: 44px;
}

.hero-stats {
  display: flex; gap: 40px; margin-top: 32px;
}
.hero-stat-value {
  font-size: 1.75rem; font-weight: 800; color: var(--c-white);
}
.hero-stat-label { font-size: 0.813rem; color: rgba(255,255,255,0.5); margin-top: 2px; }

.hero-visual {
  position: relative; display: flex; justify-content: center;
}
.hero-card {
  background: var(--c-white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl); padding: 20px; width: 320px;
  transform: rotate(-3deg);
  animation: float 6s ease-in-out infinite;
}
.hero-card-2 {
  position: absolute; right: -20px; bottom: -30px;
  transform: rotate(4deg); width: 240px;
  animation: float 6s ease-in-out infinite 1s;
}

@keyframes float {
  0%, 100% { transform: rotate(-3deg) translateY(0); }
  50% { transform: rotate(-3deg) translateY(-12px); }
}
.hero-card-2 { 
  animation-name: float2;
}
@keyframes float2 {
  0%, 100% { transform: rotate(4deg) translateY(0); }
  50% { transform: rotate(4deg) translateY(-12px); }
}

.hero-card-thumb {
  width: 100%; aspect-ratio: 16/10; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #667eea, #764ba2);
  position: relative; overflow: hidden;
}
.hero-card-thumb .play-btn {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.9); display: flex;
  align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.hero-card-title {
  font-weight: 700; font-size: 0.938rem; margin-top: 14px;
  color: var(--c-gray-800); line-height: 1.4;
}
.hero-card-meta {
  display: flex; align-items: center; gap: 8px; margin-top: 8px;
  font-size: 0.75rem; color: var(--c-text-muted);
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section { padding: 56px 0; }
.section-sm { padding: 40px 0; }

.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 36px; gap: 16px;
}
.section-title {
  font-size: 1.75rem; font-weight: 800; color: var(--c-gray-900);
  letter-spacing: -0.02em;
}
.section-subtitle {
  font-size: 0.938rem; color: var(--c-text-light); margin-top: 6px;
}
.section-link {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.875rem; font-weight: 600; color: var(--c-accent);
  white-space: nowrap;
  transition: gap var(--duration-fast);
}
.section-link:hover { gap: 10px; }
.section-link svg { width: 18px; height: 18px; }

/* --- Category Grid --- */
.categories-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.category-card {
  display: flex; align-items: center; gap: 16px;
  padding: 20px; background: var(--c-white);
  border-radius: var(--radius-md); border: 1px solid var(--c-gray-100);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}
.category-card:hover {
  border-color: var(--c-accent); box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.category-card-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--c-accent-light); display: flex;
  align-items: center; justify-content: center;
  font-size: 1.5rem; flex-shrink: 0;
  transition: background var(--duration-fast);
}
.category-card:hover .category-card-icon { background: var(--c-accent); }
.category-card:hover .category-card-icon span { filter: brightness(10); }
.category-card-name { font-weight: 600; font-size: 0.938rem; color: var(--c-gray-800); }
.category-card-count { font-size: 0.75rem; color: var(--c-text-muted); margin-top: 2px; }

/* --- Course Card --- */
.courses-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}

.course-card {
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100);
  overflow: hidden; transition: all var(--duration-normal) var(--ease-out);
  display: flex; flex-direction: column;
}
.course-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

.course-card-thumb {
  position: relative; aspect-ratio: 16/10; overflow: hidden;
  background: var(--c-gray-100);
}
.course-card-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--duration-slow);
}
.course-card:hover .course-card-thumb img { transform: scale(1.05); }

.course-card-badges {
  position: absolute; top: 12px; left: 12px;
  display: flex; gap: 6px; flex-wrap: wrap;
}

.course-card-wishlist {
  position: absolute; top: 12px; right: 12px;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.9); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-gray-400); transition: all var(--duration-fast);
  opacity: 0; transform: scale(0.8);
}
.course-card:hover .course-card-wishlist { opacity: 1; transform: scale(1); }
.course-card-wishlist:hover { color: var(--c-danger); background: white; }
.course-card-wishlist.active { color: var(--c-danger); opacity: 1; transform: scale(1); }
.course-card-wishlist svg { width: 18px; height: 18px; }

.course-card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.course-card-category {
  font-size: 0.75rem; font-weight: 600; color: var(--c-accent);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.course-card-title {
  font-size: 1rem; font-weight: 700; color: var(--c-gray-800);
  margin-top: 6px; line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.course-card-title:hover { color: var(--c-accent); }

.course-card-instructor {
  display: flex; align-items: center; gap: 8px; margin-top: 10px;
}
.course-card-instructor img {
  width: 24px; height: 24px; border-radius: 50%; object-fit: cover;
}
.course-card-instructor span { font-size: 0.813rem; color: var(--c-text-light); }

.course-card-footer {
  padding: 12px 16px; border-top: 1px solid var(--c-gray-100);
  display: flex; align-items: center; justify-content: space-between;
  margin-top: auto;
}
.course-card-meta-row {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.75rem; color: var(--c-text-muted);
}
.course-card-meta-row svg { width: 14px; height: 14px; }
.course-card-meta-item { display: flex; align-items: center; gap: 4px; }

/* --- Stats Section --- */
.stats-section {
  background: var(--c-white); border-top: 1px solid var(--c-gray-100);
  border-bottom: 1px solid var(--c-gray-100);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  text-align: center; padding: 40px 0;
}
.stat-item {}
.stat-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  margin: 0 auto 16px; display: flex;
  align-items: center; justify-content: center; font-size: 1.5rem;
}
.stat-icon.orange { background: var(--c-accent-light); color: var(--c-accent); }
.stat-icon.blue { background: #DBEAFE; color: #2563EB; }
.stat-icon.green { background: var(--c-success-light); color: var(--c-success); }
.stat-icon.purple { background: #EDE9FE; color: #7C3AED; }

.stat-number {
  font-size: 2rem; font-weight: 900; color: var(--c-gray-900);
  letter-spacing: -0.02em;
}
.stat-label { font-size: 0.875rem; color: var(--c-text-light); margin-top: 4px; }

/* --- Instructor Card --- */
.instructors-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.instructor-card {
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); padding: 28px;
  text-align: center; transition: all var(--duration-normal) var(--ease-out);
}
.instructor-card:hover {
  box-shadow: var(--shadow-card-hover); transform: translateY(-4px);
  border-color: transparent;
}
.instructor-avatar {
  width: 80px; height: 80px; border-radius: 50%;
  margin: 0 auto; object-fit: cover;
  border: 3px solid var(--c-gray-100);
}
.instructor-name { font-weight: 700; font-size: 1.063rem; margin-top: 16px; color: var(--c-gray-800); }
.instructor-title { font-size: 0.813rem; color: var(--c-text-light); margin-top: 4px; }
.instructor-stats {
  display: flex; justify-content: center; gap: 20px; margin-top: 16px;
  padding-top: 16px; border-top: 1px solid var(--c-gray-100);
  font-size: 0.813rem; color: var(--c-text-muted);
}
.instructor-stats strong { color: var(--c-gray-700); font-weight: 700; }

/* --- Instructor Detail Hero --- */
.instructor-hero { background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)); padding: 60px 0 48px; color: white; }
.instructor-hero-inner { display: flex; align-items: center; gap: 32px; }
.instructor-hero-avatar { width: 120px; height: 120px; border-radius: 50%; border: 4px solid rgba(255,255,255,.2); object-fit: cover; flex-shrink: 0; }
.instructor-hero-name { font-size: 2rem; font-weight: 800; margin: 0; }
.instructor-hero-bio { opacity: .85; margin-top: 8px; max-width: 600px; line-height: 1.6; }
.instructor-hero-stats { display: flex; gap: 32px; margin-top: 20px; }
.instructor-hero-stat { text-align: center; }
.instructor-hero-stat-value { font-size: 1.5rem; font-weight: 800; }
.instructor-hero-stat-label { font-size: .813rem; opacity: .7; }

/* --- Testimonial --- */
.testimonials-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.testimonial-card {
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); padding: 28px;
  transition: all var(--duration-normal) var(--ease-out);
}
.testimonial-card:hover { box-shadow: var(--shadow-card); }
.testimonial-quote {
  font-size: 0.938rem; color: var(--c-gray-600); line-height: 1.7;
  font-style: italic; position: relative; padding-left: 20px;
  border-left: 3px solid var(--c-accent);
}
.testimonial-author { display: flex; align-items: center; gap: 12px; margin-top: 20px; }
.testimonial-author img { width: 44px; height: 44px; border-radius: 50%; }
.testimonial-author-name { font-weight: 600; font-size: 0.875rem; }
.testimonial-author-title { font-size: 0.75rem; color: var(--c-text-muted); }

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  border-radius: var(--radius-xl); padding: 48px;
  text-align: center; color: white; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(242,101,34,0.2) 0%, transparent 50%);
}
.cta-banner h2 {
  font-family: var(--font-display); font-size: 2rem;
  position: relative; margin-bottom: 12px;
}
.cta-banner p {
  font-size: 1.063rem; color: rgba(255,255,255,0.7);
  position: relative; margin-bottom: 28px;
}
.cta-banner .btn { position: relative; }

/* ============================================
   COURSE CATALOG PAGE
   ============================================ */
.page-banner {
  background: var(--c-primary); padding: 40px 0; color: white;
}
.page-banner h1 { font-size: 1.75rem; font-weight: 800; }
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.813rem; color: rgba(255,255,255,0.6); margin-bottom: 8px;
}
.breadcrumb a:hover { color: white; }
.breadcrumb .sep { font-size: 0.625rem; }

.catalog-layout {
  display: grid; grid-template-columns: 280px 1fr; gap: 32px;
  padding: 40px 0;
}

/* Filter Sidebar */
.filter-sidebar { position: sticky; top: calc(var(--header-height) + 18px); align-self: start; }
.filter-card {
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); padding: 24px;
  margin-bottom: 16px;
}
.filter-title {
  font-weight: 700; font-size: 0.938rem; color: var(--c-gray-800);
  margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between;
}
.filter-title svg { width: 16px; height: 16px; color: var(--c-gray-400); cursor: pointer; }

.filter-list label {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 0; cursor: pointer; font-size: 0.875rem; color: var(--c-gray-600);
}
.filter-list label:hover { color: var(--c-gray-800); }
.filter-list input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--c-accent);
  border-radius: 4px; flex-shrink: 0;
}
.filter-count {
  margin-left: auto; font-size: 0.75rem; color: var(--c-text-muted);
  background: var(--c-gray-100); padding: 2px 8px;
  border-radius: var(--radius-full);
}

.filter-price-range { display: flex; gap: 8px; align-items: center; }
.filter-price-range input {
  width: 100%; height: 40px; padding: 0 12px;
  border: 1px solid var(--c-gray-200); border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

/* Filter Toggle (hidden on desktop) */
.filter-toggle-mobile { display: none; }

/* Catalog Toolbar */
.catalog-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.catalog-count { font-size: 0.875rem; color: var(--c-text-light); }
.catalog-count strong { color: var(--c-gray-800); }

.catalog-sort { display: flex; align-items: center; gap: 12px; }
.catalog-sort select {
  height: 40px; padding: 0 32px 0 14px;
  border: 1px solid var(--c-gray-200); border-radius: var(--radius-sm);
  font-size: 0.875rem; color: var(--c-gray-700);
  background: var(--c-white);
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6l3.5 4 3.5-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}

.catalog-view-toggle { display: flex; gap: 4px; }
.catalog-view-toggle button {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-gray-400); border: 1px solid var(--c-gray-200);
}
.catalog-view-toggle button.active { color: var(--c-accent); border-color: var(--c-accent); background: var(--c-accent-light); }

/* List View */
.courses-list { display: flex; flex-direction: column; gap: 16px; }
.course-card-list {
  display: grid; grid-template-columns: 260px 1fr auto;
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}
.course-card-list:hover {
  box-shadow: var(--shadow-card-hover); border-color: transparent;
}
.course-card-list .course-card-thumb { aspect-ratio: auto; height: 100%; }
.course-card-list .course-card-body { padding: 20px; }
.course-card-list .course-card-price-col {
  padding: 20px; display: flex; flex-direction: column;
  align-items: flex-end; justify-content: center; min-width: 140px;
  border-left: 1px solid var(--c-gray-100);
}

/* Pagination */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination a, .pagination span {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.875rem; font-weight: 500; color: var(--c-gray-600);
  border: 1px solid var(--c-gray-200); transition: all var(--duration-fast);
}
.pagination a:hover { border-color: var(--c-accent); color: var(--c-accent); }
.pagination .active {
  background: var(--c-accent); color: white; border-color: var(--c-accent);
}
.pagination .dots { border: none; color: var(--c-gray-400); }

/* ============================================
   COURSE DETAIL PAGE
   ============================================ */
.course-detail-banner {
  background: var(--c-primary); padding: 40px 0 48px; color: white;
}
.course-detail-layout {
  display: grid; grid-template-columns: 1fr 380px; gap: 40px;
  align-items: start;
}
.course-detail-info {}
.course-detail-category {
  display: inline-block; padding: 4px 12px; border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1); font-size: 0.813rem;
  font-weight: 500; margin-bottom: 12px;
}
.course-detail-title {
  font-size: 2rem; font-weight: 800; line-height: 1.25; margin-bottom: 16px;
}
.course-detail-subtitle { font-size: 1.063rem; color: rgba(255,255,255,0.7); margin-bottom: 20px; }

.course-detail-meta {
  display: flex; flex-wrap: wrap; gap: 20px; font-size: 0.875rem;
  color: rgba(255,255,255,0.7); align-items: center;
}
.course-detail-meta .stars .star { font-size: 1rem; }
.course-detail-meta strong { color: white; }

.course-detail-instructor-mini {
  display: flex; align-items: center; gap: 10px; margin-top: 16px;
}
.course-detail-instructor-mini img {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
}
.course-detail-instructor-mini span { font-size: 0.875rem; color: rgba(255,255,255,0.8); }
.course-detail-instructor-mini a { color: var(--c-accent); font-weight: 600; }

/* Sticky Sidebar Card */
.course-sidebar {
  position: sticky; top: calc(var(--header-height) + 18px);
}
.course-sidebar-card {
  background: var(--c-white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.course-sidebar-preview {
  position: relative; aspect-ratio: 16/10; background: var(--c-gray-900);
  cursor: pointer; overflow: hidden;
}
.course-sidebar-preview img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; }
.course-sidebar-preview .play-overlay {
  position: absolute; inset: 0; display: flex;
  align-items: center; justify-content: center;
  background: rgba(0,0,0,0.3); transition: background var(--duration-fast);
}
.course-sidebar-preview:hover .play-overlay { background: rgba(0,0,0,0.5); }
.play-overlay .play-circle {
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(255,255,255,0.9); display: flex;
  align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: transform var(--duration-fast);
}
.course-sidebar-preview:hover .play-circle { transform: scale(1.1); }
.play-label {
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  color: white; font-size: 0.813rem; font-weight: 500;
}

.course-sidebar-body { padding: 24px; }
.course-sidebar-price {
  display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px;
}
.course-sidebar-price .current { font-size: 2rem; font-weight: 900; color: var(--c-gray-900); }
.course-sidebar-price .original { font-size: 1.125rem; color: var(--c-text-muted); text-decoration: line-through; }
.course-sidebar-price .discount-tag { font-size: 0.875rem; font-weight: 700; color: var(--c-accent); }
.course-sidebar-timer {
  font-size: 0.813rem; color: var(--c-danger); font-weight: 500;
  display: flex; align-items: center; gap: 6px; margin-bottom: 20px;
}
.course-sidebar-timer svg { width: 16px; height: 16px; }

.course-sidebar-actions { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.course-sidebar-features { border-top: 1px solid var(--c-gray-100); padding-top: 20px; }
.course-sidebar-features h4 { font-size: 0.875rem; font-weight: 700; margin-bottom: 12px; }
.feature-item {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 0; font-size: 0.875rem; color: var(--c-gray-600);
}
.feature-item svg { width: 18px; height: 18px; color: var(--c-gray-400); flex-shrink: 0; }

.course-sidebar-coupon {
  margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--c-gray-100);
}
.coupon-input {
  display: flex; gap: 8px;
}
.coupon-input input {
  flex: 1; height: 40px; padding: 0 12px;
  border: 2px dashed var(--c-gray-300); border-radius: var(--radius-sm);
  font-size: 0.875rem;
}
.coupon-input input:focus { outline: none; border-color: var(--c-accent); }

/* Course Detail Body */
.course-detail-body {
  display: grid; grid-template-columns: 1fr 380px; gap: 40px;
  padding: 40px 0;
}
.course-sidebar-body-overlap { margin-top: -200px; }
.course-detail-main {}
.course-detail-sidebar-space { /* placeholder for sticky sidebar overlap */ }

/* What You'll Learn */
.learn-box {
  background: var(--c-white); border: 1px solid var(--c-gray-100);
  border-radius: var(--radius-md); padding: 28px; margin-bottom: 32px;
}
.learn-box h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: 20px; }
.learn-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.learn-item {
  display: flex; gap: 10px; font-size: 0.875rem; color: var(--c-gray-600);
  line-height: 1.5;
}
.learn-item svg { width: 20px; height: 20px; color: var(--c-success); flex-shrink: 0; margin-top: 1px; }

/* Curriculum / Course Content */
.curriculum-section { margin-bottom: 32px; }
.curriculum-section h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: 6px; }
.curriculum-meta {
  font-size: 0.875rem; color: var(--c-text-light); margin-bottom: 16px;
}

.curriculum-list {
  border: 1px solid var(--c-gray-200); border-radius: var(--radius-md);
  overflow: hidden;
}

.curriculum-group { border-bottom: 1px solid var(--c-gray-200); }
.curriculum-group:last-child { border-bottom: none; }

.curriculum-group-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; background: var(--c-gray-50); cursor: pointer;
  transition: background var(--duration-fast);
  user-select: none;
}
.curriculum-group-header:hover { background: var(--c-gray-100); }
.curriculum-group-left {
  display: flex; align-items: center; gap: 12px;
}
.curriculum-group-left svg {
  width: 18px; height: 18px; color: var(--c-gray-400);
  transition: transform var(--duration-fast);
}
.curriculum-group.open .curriculum-group-left svg { transform: rotate(90deg); }
.curriculum-group-title { font-weight: 700; font-size: 0.938rem; }
.curriculum-group-info { font-size: 0.813rem; color: var(--c-text-muted); }

.curriculum-group-body { display: none; }
.curriculum-group.open .curriculum-group-body { display: block; }

.curriculum-lesson {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px 12px 52px; border-top: 1px solid var(--c-gray-100);
  font-size: 0.875rem; color: var(--c-gray-600);
  transition: background var(--duration-fast);
}
.curriculum-lesson:hover { background: var(--c-gray-50); }
.curriculum-lesson.preview { cursor: pointer; }
.curriculum-lesson.preview:hover { background: var(--c-accent-light); }
.curriculum-lesson-icon { width: 18px; height: 18px; flex-shrink: 0; }
.curriculum-lesson-icon.play { color: var(--c-info); }
.curriculum-lesson-icon.lock { color: var(--c-gray-300); }
.curriculum-lesson-title { flex: 1; }
.curriculum-lesson-badges { display: flex; gap: 6px; align-items: center; }
.curriculum-lesson-duration { font-size: 0.75rem; color: var(--c-text-muted); white-space: nowrap; }

/* Description */
.course-description { margin-bottom: 32px; }
.course-description h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: 16px; }
.course-description-content {
  font-size: 0.938rem; line-height: 1.8; color: var(--c-gray-600);
  max-height: 300px; overflow: hidden; position: relative;
}
.course-description-content.expanded { max-height: none; }
.course-description-content::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 80px; background: linear-gradient(transparent, var(--c-bg));
}
.course-description-content.expanded::after { display: none; }
.show-more-btn {
  font-size: 0.875rem; font-weight: 600; color: var(--c-accent);
  margin-top: 8px; display: flex; align-items: center; gap: 4px;
  cursor: pointer; background: none; border: none;
}

/* Instructor Section */
.instructor-section { margin-bottom: 32px; }
.instructor-section h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: 20px; }
.instructor-profile {
  display: flex; gap: 20px;
}
.instructor-profile-avatar {
  width: 100px; height: 100px; border-radius: 50%; flex-shrink: 0;
  border: 3px solid var(--c-gray-100);
}
.instructor-profile-name { font-weight: 700; font-size: 1.125rem; color: var(--c-gray-800); }
.instructor-profile-title { font-size: 0.875rem; color: var(--c-text-light); margin-top: 2px; }
.instructor-profile-stats {
  display: flex; gap: 16px; margin-top: 10px;
  font-size: 0.813rem; color: var(--c-text-muted);
}
.instructor-profile-stats svg { width: 16px; height: 16px; vertical-align: -2px; margin-right: 4px; }
.instructor-profile-bio { font-size: 0.875rem; line-height: 1.7; color: var(--c-gray-600); margin-top: 12px; }

/* Reviews Section */
.reviews-section { margin-bottom: 32px; }
.reviews-section h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: 20px; }
.reviews-summary {
  display: flex; gap: 32px; align-items: center;
  background: var(--c-white); border: 1px solid var(--c-gray-100);
  border-radius: var(--radius-md); padding: 24px; margin-bottom: 24px;
}
.reviews-overall {
  text-align: center; min-width: 120px;
}
.reviews-overall-number { font-size: 3rem; font-weight: 900; color: var(--c-gray-900); line-height: 1; }
.reviews-overall .stars { justify-content: center; margin-top: 8px; }
.reviews-overall-count { font-size: 0.813rem; color: var(--c-text-muted); margin-top: 4px; }

.reviews-bars { flex: 1; }
.review-bar-row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 6px;
  font-size: 0.813rem;
}
.review-bar-label { width: 16px; text-align: right; font-weight: 600; color: var(--c-gray-700); }
.review-bar { flex: 1; height: 8px; background: var(--c-gray-200); border-radius: 4px; overflow: hidden; }
.review-bar-fill { height: 100%; background: #FBBF24; border-radius: 4px; }
.review-bar-pct { width: 36px; font-size: 0.75rem; color: var(--c-text-muted); }

.review-card {
  padding: 20px 0; border-bottom: 1px solid var(--c-gray-100);
}
.review-card:last-child { border-bottom: none; }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.review-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--c-gray-200); display: flex;
  align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.875rem; color: var(--c-gray-500);
}
.review-name { font-weight: 600; font-size: 0.875rem; }
.review-date { font-size: 0.75rem; color: var(--c-text-muted); }
.review-text { font-size: 0.875rem; line-height: 1.7; color: var(--c-gray-600); }

/* ============================================
   AUTH PAGES (Login / Register)
   ============================================ */
.auth-page {
  min-height: calc(100vh - var(--header-height));
  display: flex; align-items: center; justify-content: center;
  padding: 40px 20px; background: var(--c-bg);
}
.auth-card {
  width: 100%; max-width: 440px; background: var(--c-white);
  border-radius: var(--radius-lg); padding: 40px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--c-gray-100);
}
.auth-card-header { text-align: center; margin-bottom: 32px; }
.auth-card-header h1 { font-size: 1.5rem; font-weight: 800; }
.auth-card-header p { font-size: 0.875rem; color: var(--c-text-light); margin-top: 8px; }

.form-group { margin-bottom: 20px; }
.form-label {
  display: block; font-size: 0.875rem; font-weight: 600;
  color: var(--c-gray-700); margin-bottom: 6px;
}
.form-input {
  width: 100%; height: 48px; padding: 0 16px;
  border: 2px solid var(--c-gray-200); border-radius: var(--radius-sm);
  font-size: 0.938rem; color: var(--c-text);
  transition: all var(--duration-fast);
}
.form-input:focus {
  outline: none; border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(242,101,34,0.1);
}
.form-input::placeholder { color: var(--c-text-muted); }
.form-hint { font-size: 0.75rem; color: var(--c-text-muted); margin-top: 4px; }
.form-error { font-size: 0.75rem; color: var(--c-danger); margin-top: 4px; }

.form-row { display: flex; align-items: center; justify-content: space-between; }
.form-checkbox {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.875rem; color: var(--c-gray-600); cursor: pointer;
}
.form-checkbox input { width: 18px; height: 18px; accent-color: var(--c-accent); }
.form-link { font-size: 0.875rem; color: var(--c-accent); font-weight: 500; }

.auth-divider {
  display: flex; align-items: center; gap: 16px;
  margin: 24px 0; font-size: 0.813rem; color: var(--c-text-muted);
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--c-gray-200);
}

.social-login { display: flex; gap: 12px; }
.social-login-btn {
  flex: 1; height: 48px; border-radius: var(--radius-sm);
  border: 2px solid var(--c-gray-200); display: flex;
  align-items: center; justify-content: center; gap: 8px;
  font-size: 0.875rem; font-weight: 500; color: var(--c-gray-700);
  transition: all var(--duration-fast);
}
.social-login-btn:hover { border-color: var(--c-gray-300); background: var(--c-gray-50); }
.social-login-btn svg { width: 20px; height: 20px; }

.auth-footer { text-align: center; margin-top: 24px; font-size: 0.875rem; color: var(--c-text-light); }
.auth-footer a { color: var(--c-accent); font-weight: 600; }

/* ============================================
   DASHBOARD PAGE
   ============================================ */
.dashboard-page { padding: 32px 0; }
.dashboard-welcome {
  margin-bottom: 32px;
}
.dashboard-welcome h1 { font-size: 1.5rem; font-weight: 800; }
.dashboard-welcome p { font-size: 0.938rem; color: var(--c-text-light); margin-top: 4px; }

.dashboard-grid {
  display: grid; grid-template-columns: 1fr 340px; gap: 32px;
}

.dash-card {
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); padding: 24px;
  margin-bottom: 24px;
}
.dash-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.dash-card-title { font-size: 1.063rem; font-weight: 700; }

/* Enrolled Course Item */
.enrolled-course {
  display: flex; gap: 16px; padding: 16px 0;
  border-bottom: 1px solid var(--c-gray-100);
}
.enrolled-course:last-child { border-bottom: none; }
.enrolled-course-thumb {
  width: 120px; aspect-ratio: 16/10; border-radius: var(--radius-sm);
  overflow: hidden; flex-shrink: 0; background: var(--c-gray-100);
}
.enrolled-course-thumb img { width: 100%; height: 100%; object-fit: cover; }
.enrolled-course-body { flex: 1; }
.enrolled-course-title { font-weight: 600; font-size: 0.938rem; line-height: 1.4; }
.enrolled-course-instructor { font-size: 0.75rem; color: var(--c-text-muted); margin-top: 4px; }

.progress-bar {
  width: 100%; height: 6px; background: var(--c-gray-200);
  border-radius: 3px; margin-top: 10px; overflow: hidden;
}
.progress-bar-fill {
  height: 100%; background: var(--c-accent);
  border-radius: 3px; transition: width var(--duration-slow);
}
.progress-text { font-size: 0.75rem; color: var(--c-text-muted); margin-top: 4px; }

/* Reminder Card */
.reminder-card {
  background: linear-gradient(135deg, #FFF7ED, #FFF0E5);
  border: 1px solid #FED7AA; border-radius: var(--radius-md);
  padding: 20px; margin-bottom: 16px;
}
.reminder-card h4 { font-size: 0.938rem; font-weight: 700; color: #9A3412; }
.reminder-card p { font-size: 0.813rem; color: #C2410C; margin-top: 6px; }

.streak-card {
  text-align: center; padding: 24px;
}
.streak-number { font-size: 2.5rem; font-weight: 900; color: var(--c-accent); }
.streak-label { font-size: 0.875rem; color: var(--c-text-light); }
.streak-days { display: flex; gap: 6px; justify-content: center; margin-top: 12px; }
.streak-day {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.625rem; font-weight: 700;
  background: var(--c-gray-100); color: var(--c-gray-400);
}
.streak-day.active { background: var(--c-accent); color: white; }
.streak-day.today { border: 2px dashed var(--c-accent); background: var(--c-accent-light); color: var(--c-accent); }

/* ============================================
   LEARNING PAGE
   ============================================ */
.learning-page {
  display: grid; grid-template-columns: 1fr 360px;
  height: calc(100vh - var(--header-height));
  background: var(--c-gray-900);
}
.learning-page .header { background: var(--c-gray-900); border-bottom-color: rgba(255,255,255,0.1); }

.learning-video {
  display: flex; flex-direction: column;
}
.video-player {
  background: #000; aspect-ratio: 16/9; display: flex;
  align-items: center; justify-content: center; position: relative;
}
.video-player-placeholder {
  color: rgba(255,255,255,0.4); text-align: center;
}
.video-player-placeholder svg { width: 64px; height: 64px; margin-bottom: 8px; }

.learning-tabs {
  background: var(--c-white); flex: 1; overflow-y: auto;
}
.learning-tabs-nav {
  display: flex; border-bottom: 2px solid var(--c-gray-200);
  padding: 0 24px; background: var(--c-white);
  position: sticky; top: 0; z-index: 10;
}
.learning-tabs-nav button {
  padding: 14px 20px; font-size: 0.875rem; font-weight: 600;
  color: var(--c-gray-500); border-bottom: 2px solid transparent;
  margin-bottom: -2px; transition: all var(--duration-fast);
}
.learning-tabs-nav button:hover { color: var(--c-gray-700); }
.learning-tabs-nav button.active { color: var(--c-accent); border-bottom-color: var(--c-accent); }

.learning-tab-content { padding: 24px; }

/* Learning Sidebar */
.learning-sidebar {
  background: var(--c-white); border-left: 1px solid var(--c-gray-200);
  display: flex; flex-direction: column; overflow: hidden;
}
.learning-sidebar-header {
  padding: 16px 20px; border-bottom: 1px solid var(--c-gray-200);
  display: flex; align-items: center; justify-content: space-between;
}
.learning-sidebar-header h3 { font-size: 1rem; font-weight: 700; }

.learning-progress-bar {
  height: 4px; background: var(--c-gray-200);
}
.learning-progress-bar-fill { height: 100%; background: var(--c-accent); }

.learning-sidebar-body { flex: 1; overflow-y: auto; }
.learning-section {
  border-bottom: 1px solid var(--c-gray-100);
}
.learning-section-header {
  padding: 14px 20px; background: var(--c-gray-50);
  font-size: 0.813rem; font-weight: 700; color: var(--c-gray-700);
  cursor: pointer; display: flex; align-items: center; justify-content: space-between;
}
.learning-lesson {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 20px; font-size: 0.813rem; cursor: pointer;
  transition: background var(--duration-fast);
  border-left: 3px solid transparent;
}
.learning-lesson:hover { background: var(--c-gray-50); }
.learning-lesson.active { background: var(--c-accent-light); border-left-color: var(--c-accent); }
.learning-lesson.completed .learning-lesson-check { color: var(--c-success); }
.learning-lesson-check { width: 18px; height: 18px; color: var(--c-gray-300); flex-shrink: 0; }
.learning-lesson-info { flex: 1; }
.learning-lesson-title { color: var(--c-gray-700); line-height: 1.4; }
.learning-lesson-dur { font-size: 0.75rem; color: var(--c-text-muted); margin-top: 2px; }

/* ============================================
   CART & CHECKOUT
   ============================================ */
.cart-page { padding: 40px 0; }
.cart-page h1 { font-size: 1.5rem; font-weight: 800; margin-bottom: 32px; }

.cart-layout { display: grid; grid-template-columns: 1fr 380px; gap: 32px; }

.cart-items {}
.cart-item {
  display: flex; gap: 16px; padding: 20px;
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); margin-bottom: 12px;
}
.cart-item-thumb {
  width: 140px; aspect-ratio: 16/10; border-radius: var(--radius-sm);
  overflow: hidden; flex-shrink: 0; background: var(--c-gray-100);
}
.cart-item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-body { flex: 1; }
.cart-item-title { font-weight: 700; font-size: 1rem; }
.cart-item-instructor { font-size: 0.813rem; color: var(--c-text-light); margin-top: 4px; }
.cart-item-actions { margin-top: 10px; display: flex; gap: 16px; }
.cart-item-actions button { font-size: 0.813rem; font-weight: 500; color: var(--c-accent); }
.cart-item-actions button:hover { text-decoration: underline; }
.cart-item-actions .remove { color: var(--c-danger); }
.cart-item-price { text-align: right; flex-shrink: 0; }

.cart-summary {
  background: var(--c-white); border-radius: var(--radius-md);
  border: 1px solid var(--c-gray-100); padding: 24px;
  position: sticky; top: calc(var(--header-height) + 18px);
}
.cart-summary h3 { font-size: 1.063rem; font-weight: 700; margin-bottom: 20px; }
.cart-summary-row {
  display: flex; justify-content: space-between; padding: 8px 0;
  font-size: 0.938rem; color: var(--c-gray-600);
}
.cart-summary-row.total {
  border-top: 2px solid var(--c-gray-200); margin-top: 12px; padding-top: 16px;
  font-weight: 800; font-size: 1.125rem; color: var(--c-gray-900);
}
.cart-summary .btn { margin-top: 20px; }

.cart-coupon { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--c-gray-100); }
.cart-coupon label { font-size: 0.875rem; font-weight: 600; margin-bottom: 8px; display: block; }

/* Checkout payment methods */
.checkout-page { padding: 40px 0; }
.checkout-layout { display: grid; grid-template-columns: 1fr 380px; gap: 32px; }

.payment-methods { }
.payment-method {
  display: flex; align-items: center; gap: 16px;
  padding: 20px; background: var(--c-white); border: 2px solid var(--c-gray-200);
  border-radius: var(--radius-md); margin-bottom: 12px; cursor: pointer;
  transition: all var(--duration-fast);
}
.payment-method:hover { border-color: var(--c-gray-300); }
.payment-method.selected { border-color: var(--c-accent); background: var(--c-accent-light); }
.payment-method-radio {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid var(--c-gray-300); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.payment-method.selected .payment-method-radio {
  border-color: var(--c-accent);
}
.payment-method.selected .payment-method-radio::after {
  content: ''; width: 12px; height: 12px; border-radius: 50%;
  background: var(--c-accent);
}
.payment-method-icon { width: 40px; height: 40px; }
.payment-method-name { font-weight: 600; font-size: 0.938rem; }
.payment-method-desc { font-size: 0.813rem; color: var(--c-text-light); }

/* Bank Transfer Info */
.bank-transfer-info {
  background: var(--c-white); border: 1px solid var(--c-gray-100);
  border-radius: var(--radius-md); padding: 28px; margin-top: 16px;
}
.qr-code {
  width: 200px; height: 200px; margin: 0 auto;
  background: var(--c-gray-100); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.813rem; color: var(--c-text-muted);
}
.bank-details {
  margin-top: 20px; font-size: 0.875rem;
}
.bank-details-row {
  display: flex; justify-content: space-between; padding: 8px 0;
  border-bottom: 1px solid var(--c-gray-100);
}
.bank-details-row .label { color: var(--c-text-light); }
.bank-details-row .value { font-weight: 600; color: var(--c-gray-800); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-search { margin: 40px auto 0; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }

  .courses-grid { grid-template-columns: repeat(3, 1fr); }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .instructors-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }

  .catalog-layout { grid-template-columns: 1fr; }
  .filter-sidebar { position: static; display: none; }
  .filter-sidebar.open { display: block; }
  .filter-toggle-mobile {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 20px; border: 1px solid var(--c-gray-200);
    border-radius: var(--radius-sm); background: var(--c-white);
    font-size: 0.875rem; font-weight: 600; color: var(--c-gray-700);
    cursor: pointer; margin-bottom: 16px; width: 100%;
    justify-content: center;
  }
  .filter-toggle-mobile svg { width: 18px; height: 18px; }

  .course-detail-layout { grid-template-columns: 1fr; }
  .course-detail-body { grid-template-columns: 1fr; }
  .course-sidebar { position: static; margin-top: 0 !important; }
  .course-sidebar-body-overlap { margin-top: 0; }

  .dashboard-grid { grid-template-columns: 1fr; }
  .learning-page { grid-template-columns: 1fr; }
  .learning-sidebar {
    display: none; position: fixed; top: 0; right: 0; bottom: 0;
    width: 360px; max-width: 90vw; z-index: 1100;
    box-shadow: -4px 0 24px rgba(0,0,0,0.15);
  }
  .learning-sidebar.open { display: flex; }
  .learning-sidebar-toggle { display: flex; }
  .learning-sidebar-overlay {
    display: none; position: fixed; inset: 0; z-index: 1050;
    background: rgba(0,0,0,0.5);
  }
  .learning-sidebar-overlay.open { display: block; }

  .cart-layout { grid-template-columns: 1fr; }
  .checkout-layout { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --container-padding: 16px;
  }

  .hero { padding: 36px 0 44px; }
  .hero h1 { font-size: 2rem; }
  .hero-desc { font-size: 1rem; margin-bottom: 24px; }
  .hero-stats { gap: 24px; margin-top: 24px; }
  .hero-stat-value { font-size: 1.375rem; }
  .hero-search { margin-top: 20px; }
  .hero-search input { height: 48px; padding-right: 120px; }
  .hero-search .btn { height: 40px; font-size: 0.813rem; padding: 0 16px; }

  .section { padding: 40px 0; }
  .section-sm { padding: 32px 0; }
  .section-title { font-size: 1.375rem; }
  .section-header { flex-direction: column; align-items: flex-start; }

  .courses-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .instructors-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  .nav-desktop { display: none; }
  .header-search { display: none; }
  .header-auth { display: none; }
  .header-wishlist { display: none; }
  .header-user { display: none; }
  .mobile-menu-toggle { display: flex; }

  .course-detail-title { font-size: 1.5rem; }
  .learn-grid { grid-template-columns: 1fr; }
  .reviews-summary { flex-direction: column; text-align: center; }

  .course-card-list { grid-template-columns: 1fr; }
  .course-card-list .course-card-thumb { aspect-ratio: 16/8; }
  .course-card-list .course-card-price-col { border-left: none; border-top: 1px solid var(--c-gray-100); flex-direction: row; justify-content: space-between; }

  .cart-item { flex-direction: column; }
  .cart-item-thumb { width: 100%; }
  .cart-item-price { text-align: left; margin-top: 8px; }

  .instructor-profile { flex-direction: column; text-align: center; }
  .instructor-profile-avatar { margin: 0 auto; }
  .instructor-profile-stats { justify-content: center; }

  .instructor-hero { padding: 40px 0 32px; }
  .instructor-hero-inner { flex-direction: column; text-align: center; }
  .instructor-hero-avatar { width: 100px; height: 100px; }
  .instructor-hero-name { font-size: 1.5rem; }
  .instructor-hero-bio { margin-left: auto; margin-right: auto; }
  .instructor-hero-stats { justify-content: center; flex-wrap: wrap; gap: 24px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .stats-grid { padding: 32px 0; }
  .cta-banner { padding: 36px 20px; }
  .cta-banner h2 { font-size: 1.5rem; }

  .auth-card { padding: 28px 24px; }
  .social-login { flex-direction: column; }
}

@media (max-width: 480px) {
  .courses-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .instructors-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }

  .hero { padding: 28px 0 36px; }
  .hero h1 { font-size: 1.75rem; }
  .hero-stats { flex-direction: column; gap: 12px; margin-top: 20px; }
  .hero-desc { margin-bottom: 20px; }

  .section { padding: 32px 0; }
  .section-sm { padding: 24px 0; }
  .section-header { margin-bottom: 24px; }

  .course-detail-meta { gap: 12px; }

  .enrolled-course { flex-direction: column; }
  .enrolled-course-thumb { width: 100%; }

  .payment-method { flex-wrap: wrap; }
  .course-sidebar { margin-top: 0 !important; }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.animate-fadeInUp { animation: fadeInUp 0.6s var(--ease-out) both; }
.animate-fadeIn { animation: fadeIn 0.4s var(--ease-out) both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ============================================
   EXTRA STYLES (Laravel additions)
   ============================================ */

/* Flash Messages */
.flash-message {
  padding: 14px 20px; border-radius: var(--radius-sm); margin-bottom: 20px;
  font-size: 0.875rem; font-weight: 500; display: flex;
  align-items: center; justify-content: space-between;
}
.flash-success { background: var(--c-success-light); color: #065F46; border: 1px solid #A7F3D0; }
.flash-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.flash-close {
  background: none; border: none; font-size: 1.25rem; cursor: pointer;
  color: inherit; opacity: 0.6; line-height: 1;
}
.flash-close:hover { opacity: 1; }

/* Filter Radio Inputs */
.filter-list input[type="radio"] {
  width: 18px; height: 18px; accent-color: var(--c-accent); flex-shrink: 0;
}

/* Pagination Disabled */
.pagination .disabled { opacity: 0.5; pointer-events: none; }

/* Learning Page Height */
.learning-page { height: calc(100dvh - 56px); height: calc(100vh - 56px); }
.video-player iframe, .video-player video {
  width: 100%; height: 100%; position: absolute; top: 0; left: 0;
}

/* Learning Sidebar Toggle (mobile) */
.learning-sidebar-toggle {
  display: none; position: fixed; bottom: 20px; right: 20px; z-index: 100;
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--c-accent); color: white;
  box-shadow: 0 4px 16px rgba(242,101,34,0.4);
  align-items: center; justify-content: center;
  font-size: 1.25rem; border: none; cursor: pointer;
}
.learning-sidebar-toggle svg { width: 24px; height: 24px; }

/* Cart Item Actions */
.cart-item-actions form { display: inline; }

/* Main Min Height */
main { min-height: 50vh; }

/* Course Grid (alias for courses-grid in Blade) */
.course-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
@media (max-width: 1024px) { .course-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) { .course-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } }
@media (max-width: 480px) { .course-grid { grid-template-columns: 1fr; } }

/* Catalog Grid (inside sidebar layout — 3 cols max) */
.catalog-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1024px) { .catalog-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) { .catalog-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } }
@media (max-width: 480px) { .catalog-grid { grid-template-columns: 1fr; } }

/* Price aliases for Blade components */
.price-current { font-size: 1.25rem; font-weight: 800; color: var(--c-gray-900); }
.price-old { font-size: 0.875rem; color: var(--c-text-muted); text-decoration: line-through; }

/* Course card badge */
.course-card-badge {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 10px; border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 600;
  background: var(--c-accent); color: white;
}

/* Course card cat */
.course-card-cat {
  font-size: 0.75rem; font-weight: 600; color: var(--c-accent);
  text-transform: uppercase; letter-spacing: 0.04em;
}

/* User Dropdown */
.header-user { position: relative; }
.user-dropdown-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 200px; background: var(--c-white);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-gray-100); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all var(--duration-normal) var(--ease-out); z-index: 100;
}
.header-user:hover .user-dropdown-menu,
.user-dropdown-menu:hover {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.user-dropdown-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  font-size: 0.875rem; color: var(--c-gray-600);
  transition: all var(--duration-fast);
}
.user-dropdown-menu a:hover { background: var(--c-gray-50); color: var(--c-gray-800); }

/* Wishlist Heart in Header */
.header-wishlist {
  position: relative; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--c-gray-600);
  transition: all var(--duration-fast);
}
.header-wishlist:hover { background: var(--c-gray-100); color: var(--c-danger); }

/* Profile Nav */
.profile-nav {
  display: flex; gap: 8px; margin-bottom: 24px;
  padding-bottom: 16px; border-bottom: 1px solid var(--c-gray-100);
}

/* Form Row 2 cols */
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 768px) { .form-row-2 { grid-template-columns: 1fr; } }

/* Textarea form-input */
textarea.form-input { height: auto; padding: 12px 16px; resize: vertical; }

/* ============================================
   VIDEO PREVIEW MODAL
   ============================================ */
.video-preview-modal {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity var(--duration-normal), visibility var(--duration-normal);
}
.video-preview-modal.active { opacity: 1; visibility: visible; }
.video-preview-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,0.85);
}
.video-preview-container {
  position: relative; width: 90vw; max-width: 900px; z-index: 1;
}
.video-preview-close {
  position: absolute; top: -40px; right: 0;
  background: none; border: none; color: white;
  font-size: 2rem; cursor: pointer; line-height: 1;
  transition: opacity var(--duration-fast);
}
.video-preview-close:hover { opacity: 0.7; }
.video-preview-player {
  position: relative; padding-bottom: 56.25%; height: 0;
  border-radius: var(--radius-md); overflow: hidden;
  background: #000;
}
.video-preview-player iframe {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
}
.video-preview-loading {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.video-preview-error {
  text-align: center; padding: 20px 0; color: rgba(255,255,255,.8);
}
.video-preview-error p { margin-bottom: 12px; font-size: .938rem; }
.video-preview-error .btn { color: #333; }