/* =====================================================
   Landing Page — Editorial Luxury Design
   Prestigious university meets modern EdTech
   ===================================================== */

/* ── HERO ────────────────────────────────────────────── */
body:has(.hero) { padding-top: 0; }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-navy-dark);
  color: var(--color-white);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 1;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10,22,40,0.92) 0%, rgba(27,43,75,0.85) 50%, rgba(42,63,95,0.75) 100%);
  z-index: 1;
}

/* Subtle diagonal accent line */
.hero-overlay::after {
  content: '';
  position: absolute;
  top: 0; right: 20%;
  width: 1px; height: 100%;
  background: linear-gradient(180deg, transparent, rgba(197,165,90,0.3), transparent);
  transform: rotate(-15deg);
  transform-origin: top;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: var(--space-16);
  padding-top: 140px;
  padding-bottom: var(--space-24);
}

.hero-content {
  max-width: 660px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: rgba(197,165,90,0.25);
  border: 1px solid rgba(197,165,90,0.7);
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-gold);
  margin-bottom: var(--space-8);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-5xl);
  font-weight: var(--fw-bold);
  line-height: 1.05;
  margin-bottom: var(--space-8);
  letter-spacing: -0.02em;
  color: var(--color-white);
}

.hero-title .highlight {
  color: var(--color-gold);
  display: block;
  font-style: italic;
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,0.95);
  margin-bottom: var(--space-12);
  line-height: 1.7;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn-hero-outline {
  border: 2px solid rgba(255,255,255,.8);
  color: var(--color-white);
  background: transparent;
  transition: all var(--transition-fast);
}
.btn-hero-outline:hover {
  background: rgba(255,255,255,.15);
  border-color: var(--color-white);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-illustration {
  width: 100%;
  max-width: 440px;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.3));
  opacity: 0.85;
}

/* ── STATS BAR ───────────────────────────────────────── */
.stats-bar {
  padding: var(--space-16) 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  position: relative;
}

/* Gold line above each stat */
.stat-item::before {
  content: '';
  width: 40px;
  height: 2px;
  background: var(--color-gold);
  margin-bottom: var(--space-4);
}

.stat-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
  opacity: 0.7;
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  color: var(--color-navy);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat-plus {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-gold);
}

.stat-label {
  font-size: var(--fs-sm);
  color: var(--color-gray-500);
  font-weight: var(--fw-medium);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ── SECTION SHARED ──────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--color-navy-dark);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--color-gray-500);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-action {
  text-align: center;
  margin-top: var(--space-12);
}

.empty-state {
  text-align: center;
  padding: var(--space-16) 0;
  color: var(--color-gray-400);
  font-size: var(--fs-md);
  font-style: italic;
}

/* ── COURSES ─────────────────────────────────────────── */
.courses-section {
  padding: var(--space-24) 0;
  background: var(--color-gray-50);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.course-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.course-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}

.course-card-thumb {
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-navy-dark), var(--color-navy));
}

.course-card-thumb-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-thumb-icon {
  font-size: 2.5rem;
  opacity: .3;
}

.course-card-body {
  padding: var(--space-5) var(--space-5) var(--space-4);
  flex: 1;
  overflow: hidden;
}

.course-card-category {
  display: inline-block;
  font-size: 10px;
  color: var(--color-gold);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: var(--space-2);
}

.course-card-title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-navy-dark);
  margin-bottom: var(--space-3);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--fs-xs);
  color: var(--color-gray-500);
  overflow: hidden;
}

.course-card-meta span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-gray-200);
}

.course-price {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-navy-dark);
}
.course-price.free { color: var(--color-success); }

.course-rating {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-800);
}
.course-rating .stars { color: var(--color-gold); }
.course-rating .rating-count { color: var(--color-gray-400); font-size: var(--fs-xs); font-weight: var(--fw-normal); }

/* ── CATEGORIES ──────────────────────────────────────── */
.categories-section {
  padding: var(--space-24) 0;
  background: var(--color-white);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-5);
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8) var(--space-5);
  background: var(--color-cream);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-normal), background var(--transition-normal);
  overflow: hidden;
}
.category-card:hover {
  border-color: var(--color-gold);
  background: var(--color-white);
}

.category-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  color: var(--color-gold);
}

.category-name {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-navy-dark);
  margin-bottom: var(--space-2);
  word-break: break-word;
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.category-count {
  font-size: var(--fs-xs);
  color: var(--color-gray-400);
  letter-spacing: 0.02em;
}

/* ── FEATURES ────────────────────────────────────────── */
.features-section {
  padding: var(--space-24) 0;
  background: var(--color-navy-dark);
  color: var(--color-white);
}

.features-section .section-title { color: var(--color-white); }
.features-section .section-subtitle { color: rgba(255,255,255,0.85); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.feature-card {
  padding: var(--space-10);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: border-color var(--transition-normal), background var(--transition-normal);
}
.feature-card:hover {
  border-color: rgba(197,165,90,0.3);
  background: rgba(255,255,255,0.06);
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-6);
  background: rgba(197,165,90,0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
}
.feature-icon svg { stroke: var(--color-gold); }

.feature-title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.feature-desc {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* ── HOW IT WORKS ────────────────────────────────────── */
.how-section {
  padding: var(--space-24) 0;
  background: var(--color-cream);
}

.steps-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.step-card {
  flex: 0 1 260px;
  text-align: center;
  position: relative;
  padding: var(--space-6) var(--space-5);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-gold);
  color: var(--color-navy-dark);
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-5);
}

.step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-5);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  transition: border-color var(--transition-normal);
}
.step-card:hover .step-icon {
  border-color: var(--color-gold);
}

.step-title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-navy-dark);
  margin-bottom: var(--space-2);
}

.step-desc {
  font-size: var(--fs-sm);
  color: var(--color-gray-500);
  line-height: 1.65;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.step-connector {
  display: flex;
  align-items: center;
  padding-top: 100px;
  width: 60px;
  flex-shrink: 0;
}
.step-connector span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--color-gray-300);
}

/* ── TESTIMONIALS ────────────────────────────────────── */
.testimonials-section {
  padding: var(--space-24) 0;
  background: var(--color-white);
  overflow: hidden;
}

.testimonials-track {
  overflow: hidden;
  margin: 0 calc(-1 * var(--space-4));
}

.testimonials-slider {
  display: flex;
  gap: var(--space-6);
  transition: transform .4s cubic-bezier(.4,0,.2,1);
  padding: var(--space-4);
}

.testimonial-card {
  flex: 0 0 calc(33.333% - var(--space-6) * 2 / 3);
  min-width: 280px;
  background: var(--color-cream);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  border: 1px solid var(--color-gray-200);
  position: relative;
}

/* Decorative quote mark */
.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: var(--space-4);
  right: var(--space-5);
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-gold-light);
  opacity: 0.4;
  line-height: 1;
}

.testimonial-stars {
  margin-bottom: var(--space-4);
  display: flex;
  gap: 2px;
}

.testimonial-stars .star { color: var(--color-gray-300); font-size: var(--fs-md); }
.testimonial-stars .star.filled { color: var(--color-gold); }

.testimonial-text {
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  flex-shrink: 0;
}

.testimonial-name { display: block; font-size: var(--fs-sm); color: var(--color-navy); font-weight: var(--fw-semibold); }
.testimonial-course { display: block; font-size: var(--fs-xs); color: var(--color-gray-400); }

.testimonials-nav {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.testimonial-btn {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--color-gray-300); background: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--color-gray-800);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.testimonial-btn:hover {
  border-color: var(--color-gold);
  background: rgba(197,165,90,0.06);
  color: var(--color-gold);
}

/* ── CTA ─────────────────────────────────────────────── */
.cta-section {
  padding: var(--space-24) 0;
  background: var(--color-navy);
  color: var(--color-white);
  text-align: center;
  position: relative;
}

/* Subtle diagonal accent */
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  width: 1px; height: 60px;
  background: var(--color-gold);
  transform: translateX(-50%);
}

.cta-title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
  padding-top: var(--space-8);
}

.cta-subtitle {
  font-size: var(--fs-md);
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-10);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ── FOOTER ──────────────────────────────────────────── */
.site-footer {
  padding: var(--space-16) 0 var(--space-8);
  background: var(--color-navy-dark);
  color: rgba(255,255,255,0.85);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand .footer-logo {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-desc {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-5);
}

.footer-lang { display: flex; gap: var(--space-2); }
.footer-lang .lang-btn {
  padding: var(--space-1) var(--space-3); border: 1px solid rgba(255,255,255,.15);
  background: transparent; color: rgba(255,255,255,0.7); border-radius: var(--radius-sm);
  cursor: pointer; font-size: 11px; font-weight: var(--fw-bold);
  letter-spacing: 0.04em; text-transform: uppercase;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.footer-lang .lang-btn:hover { color: var(--color-white); border-color: rgba(255,255,255,.3); }
.footer-lang .lang-btn.active { color: var(--color-gold); border-color: var(--color-gold); }

.footer-heading {
  font-family: var(--font-primary);
  font-size: 11px;
  font-weight: var(--fw-bold);
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links a {
  display: block;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.75);
  padding: var(--space-1) 0;
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-gold); }

.footer-social-icons { display: flex; gap: var(--space-3); }
.social-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.social-icon:hover {
  color: var(--color-gold); border-color: rgba(197,165,90,.3); background: rgba(197,165,90,.06);
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,.06);
  text-align: center;
  font-size: var(--fs-xs);
  letter-spacing: 0.02em;
}

/* ── SCROLL ANIMATIONS ───────────────────────────────── */
[data-animate-in] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s cubic-bezier(.4,0,.2,1), transform .5s cubic-bezier(.4,0,.2,1);
}
[data-animate-in].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }
  .hero-title { font-size: var(--fs-4xl); }
  .hero-overlay::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps-flow { flex-wrap: wrap; justify-content: center; }
  .step-connector { display: none; }
  .testimonial-card { flex: 0 0 calc(50% - var(--space-6) / 2); }
}

@media (max-width: 768px) {
  .hero { min-height: 85vh; }
  .hero-title { font-size: var(--fs-3xl); }
  .hero-subtitle { font-size: var(--fs-base); }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 320px; }
  .stats-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .features-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-flow { flex-direction: column; align-items: center; }
  .step-card { flex: none; width: 100%; max-width: 320px; }
  .testimonial-card { flex: 0 0 85%; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-title { font-size: var(--fs-2xl); }
  .hero-badge { font-size: 10px; padding: var(--space-1) var(--space-3); }
  .stats-bar { padding: var(--space-10) 0; }
  .stat-number { font-size: var(--fs-3xl); }
  .cta-section { padding: var(--space-16) 0; }
  .cta-title { font-size: var(--fs-2xl); }
}

@media (max-width: 480px) {
  .hero { min-height: 75vh; }
  .hero-inner { padding-top: 100px; padding-bottom: var(--space-12); }
  .hero-title { font-size: var(--fs-2xl); }
  .hero-actions .btn { max-width: 100%; }
  .categories-grid { grid-template-columns: 1fr; }
  .category-card { flex-direction: row; text-align: left; padding: var(--space-4); gap: var(--space-4); }
  .category-icon { margin-bottom: 0; }
  .course-card-body { padding: var(--space-4); }
  .feature-card { padding: var(--space-6); }
  .footer-social-icons { justify-content: center; }
  .stat-number { font-size: var(--fs-2xl); }
  .stat-label { font-size: var(--fs-xs); }
  .section-title { font-size: var(--fs-xl); }
  .section-subtitle { font-size: var(--fs-sm); }
  .testimonial-card { flex: 0 0 92%; padding: var(--space-5); }
  .cta-title { font-size: var(--fs-xl); }
  .cta-actions .btn { width: 100%; }
}

@media (max-width: 360px) {
  .hero-title { font-size: var(--fs-xl); }
  .hero-badge { font-size: 9px; }
  .footer-bottom { font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  [data-animate-in] { opacity: 1; transform: none; transition: none; }
  .testimonials-slider { transition: none; }
  .hero-illustration * { animation: none !important; }
}