/* ============================================
   MODERN LANDING PAGE STYLES
   ============================================ */

/* Simple Navbar */
.navbar-landing {
  background: transparent;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  transition: all 0.3s ease;
}

.navbar-landing.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.navbar-logo-landing {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--white);
  text-decoration: none;
  transition: color 0.3s ease;
}

.navbar-landing.scrolled .navbar-logo-landing {
  color: var(--primary-blue);
}

/* Hero Section */
.hero-landing {
  position: relative;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 120px 0 80px;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

/* Animated Background Shapes */
.hero-bg-shapes {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 0;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.shape-1 {
  width: 400px;
  height: 400px;
  background: #f093fb;
  top: -100px;
  left: -100px;
  animation-delay: 0s;
}

.shape-2 {
  width: 300px;
  height: 300px;
  background: #4facfe;
  bottom: -50px;
  right: -50px;
  animation-delay: 7s;
}

.shape-3 {
  width: 250px;
  height: 250px;
  background: #43e97b;
  top: 50%;
  right: 10%;
  animation-delay: 14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(50px, -50px) scale(1.1); }
  66% { transform: translate(-30px, 30px) scale(0.9); }
}

/* Hero Content */
.hero-content-landing {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title-landing {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: var(--font-bold);
  line-height: 1.1;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s ease-out;
}

.hero-gradient-text {
  background: linear-gradient(to right, #f093fb, #f5576c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle-landing {
  font-size: clamp(1rem, 3vw, 1.25rem);
  line-height: 1.6;
  margin-bottom: var(--space-10);
  opacity: 0.95;
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

/* Hero Stats */
.hero-stats-landing {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
}

.stat-icon {
  font-size: 2rem;
}

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

.stat-number {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: var(--text-xs);
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* CTA Button */
.hero-cta {
  animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-10);
  background: var(--white);
  color: #667eea;
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.cta-arrow {
  font-size: var(--text-xl);
  transition: transform 0.3s ease;
}

.cta-button:hover .cta-arrow {
  transform: translateX(5px);
}

/* Classes Section */
.classes-section {
  padding: 100px 0;
  background: linear-gradient(to bottom, #f8fafc, #ffffff);
}

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

.section-title-landing {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: var(--font-bold);
  color: var(--gray-900);
  margin-bottom: var(--space-3);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--gray-600);
}

/* Class Cards Grid */
.class-grid-landing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.class-card-landing {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}

.class-card-landing.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.class-card-landing:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Class Card Background Gradients */
.class-card-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  transition: height 0.3s ease;
}

.class-card-landing:hover .class-card-bg {
  height: 100%;
  opacity: 0.1;
}

.class-bg-1 { background: linear-gradient(135deg, #667eea, #764ba2); }
.class-bg-2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.class-bg-3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.class-bg-4 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.class-bg-5 { background: linear-gradient(135deg, #fa709a, #fee140); }
.class-bg-6 { background: linear-gradient(135deg, #30cfd0, #330867); }
.class-bg-7 { background: linear-gradient(135deg, #a8edea, #fed6e3); }

.class-card-content {
  position: relative;
  z-index: 1;
}

.class-number {
  font-size: 4rem;
  font-weight: var(--font-bold);
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-3);
}

.class-card-landing:nth-child(2) .class-number { background: linear-gradient(135deg, #f093fb, #f5576c); -webkit-background-clip: text; background-clip: text; }
.class-card-landing:nth-child(3) .class-number { background: linear-gradient(135deg, #4facfe, #00f2fe); -webkit-background-clip: text; background-clip: text; }
.class-card-landing:nth-child(4) .class-number { background: linear-gradient(135deg, #43e97b, #38f9d7); -webkit-background-clip: text; background-clip: text; }
.class-card-landing:nth-child(5) .class-number { background: linear-gradient(135deg, #fa709a, #fee140); -webkit-background-clip: text; background-clip: text; }
.class-card-landing:nth-child(6) .class-number { background: linear-gradient(135deg, #30cfd0, #330867); -webkit-background-clip: text; background-clip: text; }
.class-card-landing:nth-child(7) .class-number { background: linear-gradient(135deg, #a8edea, #fed6e3); -webkit-background-clip: text; background-clip: text; }

.class-label {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--gray-900);
  margin-bottom: var(--space-2);
}

.class-meta {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

.lessons-count {
  font-weight: var(--font-medium);
}

.class-card-arrow {
  position: absolute;
  bottom: var(--space-6);
  right: var(--space-6);
  font-size: var(--text-3xl);
  color: var(--gray-300);
  transition: all 0.3s ease;
}

.class-card-landing:hover .class-card-arrow {
  color: var(--primary-blue);
  transform: translateX(5px);
}

/* Features Section */
.features-section {
  padding: 100px 0;
  background: linear-gradient(to bottom, #ffffff, #f8fafc);
}

.features-grid-landing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.feature-item {
  text-align: center;
  padding: var(--space-6);
  transition: transform 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-4px);
}

.feature-icon-box {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: linear-gradient(135deg, #667eea15, #764ba215);
  border-radius: var(--radius-xl);
  transition: all 0.3s ease;
}

.feature-item:hover .feature-icon-box {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, #667eea25, #764ba225);
}

.feature-title-landing {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--gray-900);
  margin-bottom: var(--space-3);
}

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

/* Footer */
.footer-landing {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: var(--white);
  padding: var(--space-10) 0;
  text-align: center;
}

.footer-content-landing {
  max-width: 600px;
  margin: 0 auto;
}

.footer-main {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-2);
  opacity: 0.95;
}

.footer-sub {
  font-size: var(--text-sm);
  opacity: 0.8;
}

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

/* Mobile Responsive */
@media (max-width: 767px) {
  .hero-landing {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-stats-landing {
    gap: var(--space-4);
  }

  .stat-card {
    padding: var(--space-3) var(--space-4);
  }

  .stat-icon {
    font-size: 1.5rem;
  }

  .stat-number {
    font-size: var(--text-xl);
  }

  .cta-button {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
  }

  .classes-section,
  .features-section {
    padding: 60px 0;
  }

  .class-grid-landing {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .class-card-landing {
    padding: var(--space-6);
  }

  .class-number {
    font-size: 3rem;
  }

  .features-grid-landing {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .class-grid-landing {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Reduce animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}