/* ============================================
   LANDING PAGE - Clean Minimalist Design
   Based on modern e-commerce aesthetics
   ============================================ */

/* ============================================
    HERO SECTION
    ============================================ */

/* Add top padding to account for fixed modern-nav bar */
.modern-hero {
  padding-top: 8rem !important;
}

@media (max-width: 768px) {
  .modern-hero {
    padding-top: 7rem !important;
  }
}

.landing-hero {
  background: var(--bg-primary);
  padding: 0;
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 0;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0;
  min-height: 90vh;
}

.hero-text {
  padding: var(--space-4xl) var(--space-3xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-text h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero-text p {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--neutral-600);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  max-width: 500px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--neutral-500);
  font-weight: 400;
}

.hero-cta {
  margin-top: var(--space-2xl);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-cta .btn {
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: 0;
  transition: all 0.2s ease;
  letter-spacing: -0.01em;
}

.hero-cta .btn-primary {
  background: #000000;
  color: #ffffff;
  border: 2px solid #000000;
}

.hero-cta .btn-primary:hover {
  background: #333333;
  border-color: #333333;
  transform: translateY(-2px);
}

.hero-cta .btn-outline {
  background: transparent;
  color: var(--neutral-900);
  border: 2px solid var(--neutral-900);
}

.hero-cta .btn-outline:hover {
  background: #000000;
  color: #ffffff;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-light);
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--neutral-900);
  display: block;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--neutral-500);
  display: block;
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-image {
  position: relative;
  height: 100%;
  min-height: 90vh;
  background: var(--bg-secondary);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ============================================
   UNIVERSITY SELECTOR
   ============================================ */

.university-selector-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.university-selector-section .container {
  max-width: 1400px;
}

.university-selector-section h2 {
  text-align: left;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: left;
  color: var(--neutral-600);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3xl);
  max-width: 600px;
}

.universities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.university-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 0;
  padding: var(--space-xl);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.university-card:hover {
  border-color: var(--neutral-900);
  background: var(--bg-secondary);
}

.university-card.selected {
  border-color: #000000;
  background: #000000;
}

.university-card.selected .university-icon,
.university-card.selected h3,
.university-card.selected .campus-info,
.university-card.selected .region-info {
  color: #ffffff;
}

.university-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  display: block;
}

.university-card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.campus-info,
.region-info {
  font-size: var(--text-sm);
  color: var(--neutral-600);
  margin: var(--space-xs) 0;
  font-weight: 400;
}

.navigation-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-start;
  flex-wrap: wrap;
}

.navigation-buttons .btn {
  padding: var(--space-md) var(--space-2xl);
  font-weight: 600;
  border-radius: 0;
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-secondary);
}

.features-section .container {
  max-width: 1400px;
}

.features-section h2 {
  text-align: left;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-3xl);
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  background: var(--bg-primary);
  padding: var(--space-2xl);
  border: 1px solid var(--border-light);
  text-align: left;
  transition: all 0.2s ease;
}

.feature-card:hover {
  border-color: var(--neutral-900);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  display: block;
}

.feature-card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--neutral-600);
  line-height: 1.6;
  font-size: var(--text-base);
}

/* ============================================
   CATEGORIES SECTION
   ============================================ */

.categories-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.categories-section .container {
  max-width: 1400px;
}

.categories-section h2 {
  text-align: left;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: left;
  color: var(--neutral-600);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3xl);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.category-card {
  background: var(--bg-secondary);
  padding: var(--space-xl);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.category-card:hover {
  background: var(--bg-primary);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.category-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
}

.category-card h4 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.category-card p {
  font-size: var(--text-sm);
  color: var(--neutral-600);
  line-height: 1.5;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
  padding: var(--space-4xl) 0;
  background: #000000;
  text-align: left;
}

.cta-section .container {
  max-width: 1400px;
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.cta-section p {
  font-size: var(--text-lg);
  color: #cccccc;
  margin-bottom: var(--space-xl);
}

.cta-section .btn {
  padding: var(--space-lg) var(--space-3xl);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: 0;
}

.cta-section .btn-primary {
  background: #ffffff;
  color: #000000;
  border: 2px solid #ffffff;
}

.cta-section .btn-primary:hover {
  background: #f0f0f0;
  border-color: #f0f0f0;
}

/* ============================================
   DARK MODE OVERRIDES
   ============================================ */
[data-theme='dark'] .hero-cta .btn-primary {
  background: var(--neutral-900);
  color: var(--neutral-100);
  border-color: var(--neutral-900);
}

[data-theme='dark'] .hero-cta .btn-primary:hover {
  background: var(--neutral-700);
  border-color: var(--neutral-700);
}

[data-theme='dark'] .hero-cta .btn-outline {
  color: var(--neutral-100);
  border-color: var(--neutral-100);
}

[data-theme='dark'] .hero-cta .btn-outline:hover {
  background: var(--neutral-100);
  color: var(--neutral-900);
}

[data-theme='dark'] .university-card.selected {
  border-color: var(--primary);
  background: var(--primary);
}

[data-theme='dark'] .university-card.selected .university-icon,
[data-theme='dark'] .university-card.selected h3,
[data-theme='dark'] .university-card.selected .campus-info,
[data-theme='dark'] .university-card.selected .region-info {
  color: var(--color-white);
}

[data-theme='dark'] .cta-section {
  background: var(--neutral-900);
}

[data-theme='dark'] .cta-section p {
  color: var(--neutral-400);
}

[data-theme='dark'] .cta-section .btn-primary {
  background: var(--neutral-100);
  color: var(--neutral-900);
  border-color: var(--neutral-100);
}

[data-theme='dark'] .cta-section .btn-primary:hover {
  background: var(--neutral-200);
  border-color: var(--neutral-200);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-text {
    padding: var(--space-3xl) var(--space-xl);
    order: 2;
  }

  .hero-image {
    order: 1;
    min-height: 50vh;
  }

  .hero-stats {
    justify-items: start;
  }
}

@media (max-width: 768px) {
  .universities-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .navigation-buttons {
    flex-direction: column;
  }

  .navigation-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .categories-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }
}