/* ================================================================
   SAMAI LMS — Light Theme (Digilearn-Inspired)
   ================================================================ */

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

:root {
  --primary: #4E1EEC;
  --primary-hover: #3B0FD4;
  --primary-light: rgba(78, 30, 236, 0.08);
  --primary-glow: rgba(78, 30, 236, 0.15);
  --gold: #F8C878;
  --gold-hover: #F0B84E;
  --gold-dark: #E5A93D;
  --gold-light: rgba(248, 200, 120, 0.15);
  --green: #10B981;
  --green-hover: #059669;
  --green-light: rgba(16, 185, 129, 0.1);
  --orange: #F59E0B;
  --orange-light: rgba(245, 158, 11, 0.1);
  --bg-body: #FFFFFF;
  --bg-surface: #F8F7FC;
  --bg-card: #FFFFFF;
  --bg-dark: #352466;
  --bg-dark-deep: #3A305D;
  --bg-dark-card: rgba(255, 255, 255, 0.08);
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #B4B9D1;
  --text-on-dark: #FFFFFF;
  --border: #E2E8F0;
  --border-hover: #CBD5E1;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; }

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }

img { max-width: 100%; display: block; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

/* --- Utility --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 640px; margin: 0 auto; padding: 0 24px; }
.text-accent { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; }
.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-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Scroll-triggered animations — default is fade-up */
[data-animate] { opacity: 0; transform: translateY(30px); transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1); }
[data-animate="slide-left"] { transform: translateX(-40px); }
[data-animate="slide-right"] { transform: translateX(40px); }
[data-animate="scale-up"] { transform: scale(0.85); }
[data-animate="fade-up"], [data-animate=""] { transform: translateY(30px); }

/* When visible */
[data-animate].animate-in { opacity: 1; transform: translateY(0) translateX(0) scale(1); }

/* Fallback class names */
.animate-fade-up { animation: fadeInUp 0.6s ease-out both; }
.animate-fade { animation: fadeIn 0.5s ease-out both; }
.animate-slide-left { animation: slideInLeft 0.5s ease-out both; }
.animate-slide-right { animation: slideInRight 0.5s ease-out both; }
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }

.skeleton {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--gold);
  color: #352466;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(248, 200, 120, 0.4);
}
.btn-primary:hover {
  background: var(--gold-hover);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
}
.btn-outline:hover {
  background: var(--bg-surface);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-surface); }

.btn-white {
  background: #fff;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}
.btn-white:hover { box-shadow: var(--shadow-lg); transform: translateY(-1px); color: var(--text-primary); }

.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-icon { width: 44px; height: 44px; padding: 0; border-radius: var(--radius-md); }
.btn-full { width: 100%; }

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-brand span { color: var(--primary); }
.nav-brand:hover { color: var(--text-primary); }

.nav-logo {
  height: 36px;
  width: auto;
  margin-right: 8px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}
.nav-links a:hover { color: var(--text-primary); background: var(--bg-surface); }
.nav-links a.active { color: var(--primary); font-weight: 600; }

.nav-auth { display: flex; align-items: center; gap: 12px; }

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 32px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 500;
  padding: 16px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.mobile-menu a:hover { color: var(--text-primary); background: var(--bg-surface); }

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  background: var(--bg-surface);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.06), transparent 70%);
  border-radius: 50%;
}
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.06), transparent 70%);
  border-radius: 50%;
}
.hero-grid {
  display: none;
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero-content {
  max-width: 600px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--green-light);
  border: 1px solid rgba(248, 200, 120, 0.3);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-dark);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out both;
}
.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--text-primary);
  animation: fadeInUp 0.6s ease-out 0.15s both;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #F8C878 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 500px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.45s both;
}
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 48px;
  animation: fadeInUp 0.6s ease-out 0.6s both;
}
.hero-stat .stat-value {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
}
.hero-stat .stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Hero two-col layout (Digilearn) */
.hero-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-image {
  position: relative;
  animation: fadeIn 0.8s ease-out 0.3s both;
}
.hero-image img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}
.hero-image-photo img {
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(78, 30, 236, 0.2);
}
.hero-image .hero-card-float {
  position: absolute;
  background: #fff;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 600;
  animation: float 4s ease-in-out infinite;
}
.hero-image .hero-card-float.top-right {
  top: -20px;
  right: -20px;
}
.hero-image .hero-card-float.bottom-left {
  bottom: 40px;
  left: -20px;
}

/* Trust logos */
.trust-logos {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  animation: fadeInUp 0.6s ease-out 0.7s both;
}
.trust-logos span {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}
.trust-logos img {
  height: 28px;
  opacity: 0.4;
  transition: opacity var(--transition);
}
.trust-logos img:hover { opacity: 0.7; }

/* --- Section --- */
.section {
  padding: 100px 0;
  position: relative;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 16px;
  color: var(--text-primary);
}
.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Features (Dark section) --- */
.features-section {
  background: var(--bg-dark);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(78, 30, 236, 0.15), transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(248, 200, 120, 0.08), transparent 60%);
}
.features-section .section-label { color: var(--gold); }
.features-section .section-title { color: #fff; }
.features-section .section-subtitle { color: rgba(255,255,255,0.65); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}
.feature-card {
  padding: 32px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.feature-card:hover::before { opacity: 1; }
.feature-card h3 { color: #fff; }
.feature-card p { color: rgba(255,255,255,0.65); }
.feature-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Feature icon base */
.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(-3deg);
}
.feature-icon svg { flex-shrink: 0; }

/* Card color variants */
.feature-icon--gold { background: linear-gradient(135deg, rgba(248,200,120,0.2), rgba(245,158,11,0.15)); color: #F8C878; }
.feature-card--gold::before { background: linear-gradient(90deg, #F8C878, #F59E0B); }
.feature-card--gold:hover { border-color: rgba(248, 200, 120, 0.3); }

.feature-icon--cyan { background: linear-gradient(135deg, rgba(6,182,212,0.2), rgba(34,211,238,0.15)); color: #22D3EE; }
.feature-card--cyan::before { background: linear-gradient(90deg, #06B6D4, #22D3EE); }
.feature-card--cyan:hover { border-color: rgba(6, 182, 212, 0.3); }

.feature-icon--green { background: linear-gradient(135deg, rgba(16,185,129,0.2), rgba(52,211,153,0.15)); color: #34D399; }
.feature-card--green::before { background: linear-gradient(90deg, #10B981, #34D399); }
.feature-card--green:hover { border-color: rgba(16, 185, 129, 0.3); }

.feature-icon--pink { background: linear-gradient(135deg, rgba(236,72,153,0.2), rgba(244,114,182,0.15)); color: #F472B6; }
.feature-card--pink::before { background: linear-gradient(90deg, #EC4899, #F472B6); }
.feature-card--pink:hover { border-color: rgba(236, 72, 153, 0.3); }

.feature-icon--orange { background: linear-gradient(135deg, rgba(249,115,22,0.2), rgba(251,146,60,0.15)); color: #FB923C; }
.feature-card--orange::before { background: linear-gradient(90deg, #F97316, #FB923C); }
.feature-card--orange:hover { border-color: rgba(249, 115, 22, 0.3); }

.feature-icon--purple { background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(167,139,250,0.15)); color: #A78BFA; }
.feature-card--purple::before { background: linear-gradient(90deg, #8B5CF6, #A78BFA); }
.feature-card--purple:hover { border-color: rgba(139, 92, 246, 0.3); }

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #fff;
}
.feature-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* --- Stats Bar --- */
.stats-bar {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 50%, var(--bg-dark-deep) 100%);
  padding: 60px 0;
}
.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stats-bar-item .stat-num {
  font-family: var(--font-heading);
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stats-bar-item .stat-text {
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  margin-top: 8px;
}
.stats-bar-photo {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* --- Learning Experience --- */
.learning-experience-section {
  background: var(--bg-surface);
  position: relative;
  overflow: hidden;
}
.learning-experience-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(78, 30, 236, 0.04) 1px, transparent 0);
  background-size: 32px 32px;
  pointer-events: none;
}
.experience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.experience-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}
.experience-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}
.experience-img {
  aspect-ratio: 16/10;
  overflow: hidden;
}
.experience-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.experience-card:hover .experience-img img {
  transform: scale(1.05);
}
.experience-body {
  padding: 24px;
}
.experience-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.experience-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Course Cards --- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.course-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.course-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.course-card .card-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  overflow: hidden;
}
.course-card .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.course-card .card-thumb .card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}
.course-card .card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.course-card .card-level {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.course-card .card-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}
.course-card .card-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}
.course-card .card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.course-card .card-meta .rating {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--warning);
  font-weight: 600;
}
.course-card .card-price {
  margin-left: auto;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

/* --- Card (generic) --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.glass-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.testimonial-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}
.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  color: var(--warning);
  font-size: 16px;
}
.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--bg-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
}
.testimonial-name { font-weight: 600; font-size: 15px; color: var(--text-primary); }
.testimonial-role { font-size: 13px; color: var(--text-muted); }

/* --- Instructor Section --- */
.instructor-section {
  background: var(--bg-surface);
}
.instructor-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 48px;
  align-items: center;
}
.instructor-avatar-lg {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--bg-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-heading);
  box-shadow: 0 12px 40px rgba(78, 30, 236, 0.25);
  overflow: hidden;
}
.instructor-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.instructor-info h3 { font-size: 28px; margin-bottom: 8px; }
.instructor-info .instructor-title { font-size: 16px; color: var(--primary); margin-bottom: 16px; }
.instructor-info p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 24px; }
.instructor-stats {
  display: flex;
  gap: 32px;
}
.instructor-stat { text-align: center; }
.instructor-stat .val { font-family: var(--font-heading); font-size: 24px; font-weight: 700; color: var(--text-primary); }
.instructor-stat .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 100px 0;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
}
.cta-photo {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 70%);
  border-radius: 50%;
}
.cta-section h2 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 16px; position: relative; color: #fff; }
.cta-section p { font-size: 17px; color: rgba(255,255,255,0.85); margin-bottom: 32px; position: relative; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-section .btn-primary {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.cta-section .btn-primary:hover {
  background: #f8fafc;
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
  transform: translateY(-2px);
  color: var(--primary);
}

/* --- Footer --- */
.footer {
  padding: 80px 0 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-dark);
  color: #F1F5F9;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
  color: #F1F5F9;
}
.footer-brand span { color: var(--gold); }
.footer-desc {
  font-size: 15px;
  color: #94A3B8;
  line-height: 1.7;
  max-width: 320px;
}
.footer h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #F1F5F9;
}
.footer ul { list-style: none; }
.footer li { margin-bottom: 12px; }
.footer li a { color: #94A3B8; font-size: 14px; }
.footer li a:hover { color: var(--gold); }
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: #64748B;
}

/* --- Technologies Grid --- */
.tech-covered {
  margin-bottom: 48px;
}
.tech-covered h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.tech-grid-home {
  grid-template-columns: repeat(4, 1fr);
}
.tech-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  text-align: center;
}
.tech-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.tech-card img {
  width: 56px;
  height: 56px;
  object-fit: contain;
}
.tech-grid-home .tech-card img {
  width: 64px;
  height: 64px;
}
.tech-card span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

/* --- Form Inputs --- */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-input {
  width: 100%;
  padding: 14px 18px;
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  transition: all var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.form-input::placeholder { color: var(--text-muted); }
.form-error {
  color: var(--error);
  font-size: 13px;
  margin-top: 6px;
}

/* --- Auth Pages --- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 24px 48px;
  background: var(--bg-surface);
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease-out both;
}
.auth-header {
  text-align: center;
  margin-bottom: 32px;
}
.auth-header h1 {
  font-size: 28px;
  margin-bottom: 8px;
}
.auth-header p {
  color: var(--text-secondary);
  font-size: 15px;
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 13px;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* --- Dashboard --- */
.dashboard-page {
  padding-top: 96px;
  min-height: 100vh;
  background: var(--bg-surface);
}
.dashboard-header {
  margin-bottom: 40px;
}
.dashboard-header h1 {
  font-size: 32px;
  margin-bottom: 8px;
}
.dashboard-header p {
  color: var(--text-secondary);
  font-size: 16px;
}
.enrolled-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}
.enrolled-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.enrolled-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.enrolled-card .card-top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 16px;
}
.enrolled-card h3 {
  font-size: 18px;
  line-height: 1.3;
  flex: 1;
  margin-right: 16px;
}
.enrolled-card .progress-pct {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}
.enrolled-card .card-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.progress-bar-outer {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 16px;
}
.progress-bar-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--gold));
  border-radius: 3px;
  transition: width 0.5s ease-out;
}

/* --- Certificate Banner --- */
.certificate-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: var(--green-light);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}
.certificate-banner p {
  font-size: 15px;
  font-weight: 500;
}

/* --- Course Detail --- */
.course-hero {
  padding-top: 96px;
  padding-bottom: 60px;
  background: var(--bg-surface);
  position: relative;
  border-bottom: 1px solid var(--border);
}
.course-hero-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}
.course-hero-info .breadcrumb {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.course-hero-info .breadcrumb a { color: var(--text-secondary); }
.course-hero-info h1 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 12px;
}
.course-hero-info .subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}
.course-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.course-meta-bar .rating {
  color: var(--warning);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}
.course-meta-bar .meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.course-sidebar-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: sticky;
  top: 96px;
  box-shadow: var(--shadow-lg);
}
.course-sidebar-card .price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
}
.course-sidebar-card .price {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 800;
}
.course-sidebar-card .currency { font-size: 16px; color: var(--text-muted); }
.course-sidebar-card .features {
  list-style: none;
  margin: 20px 0;
}
.course-sidebar-card .features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.course-sidebar-card .features li:last-child { border-bottom: none; }
.course-sidebar-card .features .check { color: var(--success); font-size: 16px; }

/* Course Body */
.course-body { padding: 60px 0; }
.what-you-learn {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
}
.what-you-learn h2 { font-size: 22px; margin-bottom: 20px; }
.learn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.learn-item {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.learn-item .check { color: var(--success); font-size: 16px; flex-shrink: 0; margin-top: 2px; }

/* Syllabus */
.syllabus { margin-bottom: 40px; }
.syllabus h2 { font-size: 22px; margin-bottom: 20px; }
.module-accordion {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
}
.module-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}
.module-header:hover { background: var(--bg-surface); }
.module-header h3 { font-size: 16px; font-weight: 600; }
.module-header .lesson-count { font-size: 13px; color: var(--text-muted); }
.module-header .chevron {
  font-size: 20px;
  color: var(--text-muted);
  transition: transform var(--transition);
}
.module-header.open .chevron { transform: rotate(180deg); }
.module-lessons {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.module-lessons.open { max-height: 1000px; }
.lesson-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  font-size: 14px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  transition: background var(--transition);
}
.lesson-row:hover { background: var(--bg-surface); }
.lesson-row .play-icon { color: var(--text-muted); font-size: 16px; }
.lesson-row .duration { margin-left: auto; font-size: 13px; color: var(--text-muted); }
.lesson-row .free-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--success);
  background: var(--green-light);
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

/* --- Video Player (Learn Page) --- */
.learn-page {
  padding-top: 72px;
  min-height: 100vh;
  display: flex;
  background: var(--bg-surface);
}
.learn-sidebar {
  width: 340px;
  min-width: 340px;
  background: #fff;
  border-left: 1px solid var(--border);
  height: calc(100vh - 72px);
  overflow-y: auto;
  position: sticky;
  top: 72px;
  order: 2;
}
.learn-sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}
.learn-sidebar-header h2 {
  font-size: 16px;
  line-height: 1.3;
  margin-bottom: 8px;
}
.learn-sidebar-header .progress-text {
  font-size: 13px;
  color: var(--text-muted);
}
.sidebar-module { border-bottom: 1px solid var(--border); }
.sidebar-module-header {
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-surface);
}
.sidebar-lesson {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}
.sidebar-lesson:hover { background: var(--bg-surface); color: var(--text-primary); }
.sidebar-lesson.active {
  background: var(--primary-light);
  color: var(--primary);
  border-left-color: var(--primary);
}
.sidebar-lesson.completed { color: var(--success); }
.sidebar-lesson .lesson-check {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}
.sidebar-lesson.completed .lesson-check {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.sidebar-lesson.active .lesson-check { border-color: var(--primary); }
.sidebar-lesson .lesson-title { flex: 1; line-height: 1.4; }
.sidebar-lesson .lesson-dur { font-size: 12px; color: var(--text-muted); white-space: nowrap; }

.learn-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  order: 1;
}
.video-container {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  position: relative;
  overflow: hidden;
}
.video-container video,
.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  object-fit: contain;
  position: absolute;
  inset: 0;
}
.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 16px;
}
.video-placeholder .play-big {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  box-shadow: 0 8px 30px rgba(79, 70, 229, 0.3);
}
.lesson-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.lesson-toolbar h3 { font-size: 18px; }
.lesson-toolbar .toolbar-actions { display: flex; gap: 12px; }

/* --- Checkout --- */
.checkout-page {
  min-height: 100vh;
  padding-top: 96px;
  padding-bottom: 48px;
  background: var(--bg-surface);
}
.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 48px;
  align-items: start;
}
.checkout-summary {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.checkout-summary h2 { font-size: 22px; margin-bottom: 24px; }
.checkout-item {
  display: flex;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.checkout-item .thumb {
  width: 100px;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.checkout-item h3 { font-size: 16px; margin-bottom: 4px; }
.checkout-item p { font-size: 14px; color: var(--text-secondary); }
.checkout-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-heading);
}
.checkout-total .label { font-size: 16px; color: var(--text-secondary); }
.checkout-total .amount { font-size: 32px; font-weight: 800; }

/* --- Admin --- */
.admin-page {
  padding-top: 96px;
  min-height: 100vh;
  padding-bottom: 48px;
  background: var(--bg-surface);
}
.admin-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 32px;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 4px;
  border: 1px solid var(--border);
  width: fit-content;
  box-shadow: var(--shadow-sm);
}
.admin-tab {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  font-family: var(--font-body);
}
.admin-tab.active {
  background: var(--primary);
  color: #fff;
}
.admin-tab:hover:not(.active) { color: var(--text-primary); background: var(--bg-surface); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.stat-card:hover { border-color: var(--border-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card .stat-label { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }
.stat-card .stat-value {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
}
.stat-card .stat-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  font-size: 20px;
  margin-bottom: 12px;
}

/* Admin Table */
.admin-table-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
}
.admin-table th {
  text-align: left;
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}
.admin-table td {
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bg-surface); }

/* Toggle switch */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle .slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--transition);
}
.toggle .slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.toggle input:checked + .slider { background: var(--primary); }
.toggle input:checked + .slider::before { transform: translateX(20px); }

/* Badge / Pill */
.badge {
  display: inline-flex;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
}
.badge-success { background: var(--green-light); color: #059669; }
.badge-warning { background: var(--orange-light); color: #D97706; }
.badge-error { background: rgba(239,68,68,0.1); color: #DC2626; }
.badge-accent { background: var(--primary-light); color: var(--primary); }

/* --- Filters --- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.filter-btn:hover { border-color: var(--border-hover); color: var(--text-primary); }
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* --- Page Header --- */
.page-header {
  padding-top: 96px;
  padding-bottom: 40px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}
.page-header h1 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 8px; }
.page-header p { font-size: 17px; color: var(--text-secondary); }

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 64px; margin-bottom: 20px; opacity: 0.3; }
.empty-state h3 { font-size: 20px; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 15px; max-width: 400px; margin: 0 auto 24px; }

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 16px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  font-size: 14px;
  z-index: 2000;
  animation: fadeInUp 0.3s ease-out both;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 400px;
  color: var(--text-primary);
}
.toast.success { border-color: var(--success); border-left: 4px solid var(--success); }
.toast.error { border-color: var(--error); border-left: 4px solid var(--error); }
.toast.info { border-left: 4px solid var(--primary); }
.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
  margin-left: 8px;
}

/* --- Spinner --- */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
}

/* --- CV Builder --- */
.cv-builder-page {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 96px 24px 48px;
  background: var(--bg-surface);
}
.cv-builder-card {
  width: 100%;
  max-width: 720px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease-out both;
}
.form-section {
  margin-top: 32px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.form-section h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
}
.form-section p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.form-section-row {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
}
.form-row-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.form-textarea::placeholder { color: var(--text-muted); }
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.btn-add-section {
  width: 100%;
  padding: 12px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 16px;
}
.btn-add-section:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.photo-upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  text-align: center;
}

/* CV Prompt Banner */
.cv-prompt-banner {
  background: #fff;
  border: 1px solid rgba(79, 70, 229, 0.2);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
  animation: fadeInUp 0.5s ease-out both;
}
.cv-prompt-content {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.cv-prompt-icon { font-size: 36px; flex-shrink: 0; }
.cv-prompt-content h3 { font-size: 18px; margin-bottom: 4px; }
.cv-prompt-content p { font-size: 14px; color: var(--text-secondary); margin: 0; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero-two-col { grid-template-columns: 1fr; }
  .hero-image { order: -1; }
  .hero-image-photo img { aspect-ratio: 16/9; }
  .hero-stats { gap: 32px; }
  .instructor-grid { grid-template-columns: 1fr; text-align: center; }
  .instructor-avatar-lg { margin: 0 auto; }
  .instructor-stats { justify-content: center; }
  .course-hero-grid { grid-template-columns: 1fr; }
  .course-sidebar-card { position: static; }
  .checkout-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .experience-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-auth { display: none; }
  .nav-toggle { display: flex; }

  .hero { min-height: auto; padding: 120px 0 80px; }
  .hero h1 { font-size: 32px; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .trust-logos { flex-wrap: wrap; }

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

  .learn-page { flex-direction: column; }
  .learn-sidebar {
    width: 100%;
    min-width: 100%;
    height: auto;
    max-height: 300px;
    position: static;
    order: 3;
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .learn-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stats-bar-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .enrolled-grid { grid-template-columns: 1fr; }
  .admin-tabs { overflow-x: auto; width: 100%; }
  .section { padding: 60px 0; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .cv-builder-card { padding: 24px 16px; }
  .cv-prompt-content { flex-direction: column; text-align: center; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .hero h1 { font-size: 28px; }
  .cv-builder-card { padding: 20px 12px; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
}