:root {
  --color-primary: #2563eb;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #1e40af;
  --color-secondary: #f0f7ff;
  --color-tertiary: #38bdf8;
  --color-text: #18181b;
  --color-text-light: #52525b;
  --color-text-lighter: #71717a;
  --color-border: #e4e4e7;
  --color-background: #ffffff;
  --color-background-alt: #f8fafc;
  --color-success: #10b981;
  --color-accent: #f472b6;
  --color-accent-light: #f9a8d4;
  --color-gradient-1: #2563eb;
  --color-gradient-2: #38bdf8;
  --color-gradient-3: #0ea5e9;

  --space-xxs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2.25rem;
  --font-size-xxxl: 3.5rem;

  --border-radius-sm: 6px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 15px rgba(124, 58, 237, 0.5);
}

/* Base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden !important;
  width: 100%;
  position: relative;
}

body {
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  line-height: 1.6;
  background-color: var(--color-background);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--font-size-xxxl);
  letter-spacing: -0.03em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: var(--font-size-xxl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  position: relative;
  display: inline-block;
}

h2::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: var(--border-radius-full);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
}

a {
  text-decoration: none;
  color: var(--color-primary);
  transition: all 0.3s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius-full);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: none !important;
}

.btn:hover::before {
  content: none !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  color: white;
  border: none;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
  overflow: visible !important;
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.6);
  transform: translateY(-2px);
  color: white;
}

.btn-primary svg {
  transition: transform 0.3s ease;
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

.btn-secondary {
  background-color: white;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: visible !important;
}

.btn-secondary:hover {
  border-color: var(--color-text-lighter);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.btn-badge {
  position: absolute;
  top: -12px;
  right: -12px;
  background: linear-gradient(135deg, var(--color-tertiary), var(--color-accent-light));
  color: var(--color-text);
  font-size: var(--font-size-xs);
  padding: 2px 10px;
  border-radius: var(--border-radius-full);
  font-weight: 600;
  box-shadow: 0 2px 5px rgba(251, 191, 36, 0.3);
  z-index: 2;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: none;
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
}

.btn-outline-nav {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  box-shadow: none;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
}

.btn-outline-nav:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-small {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
}

/* Background elements */
.bg-gradient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 10% 20%, rgba(96, 165, 250, 0.8) 0%, rgba(240, 247, 255, 0.5) 90%);
  z-index: -2;
  pointer-events: none;
}

.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.4;
  z-index: -1;
  pointer-events: none;
}

.bg-shapes {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
}

.shape-1 {
  top: 10%;
  right: 10%;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(56, 189, 248, 0.1));
}

.shape-2 {
  bottom: 20%;
  left: 5%;
  width: 250px;
  height: 250px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(14, 165, 233, 0.1));
}

.shape-3 {
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(96, 165, 250, 0.1));
}

.shape-4 {
  top: 80%;
  right: 30%;
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(56, 189, 248, 0.05));
}

/* Hero Section */
.hero {
  padding: var(--space-md) 0;
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: var(--space-xxl);
  position: relative;
  z-index: 1;
}

.hero-content {
  flex: 1;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-illustration {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
}

.illustration-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.course-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 180px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.course-icon img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  margin: auto;
}

.orbit {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px dashed rgba(124, 58, 237, 0.2);
  border-radius: 50%;
  animation: spin 20s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.planet {
  position: absolute;
  width: 50px;
  height: 50px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  color: var(--color-primary);
}

.planet-1 {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.planet-2 {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.planet-3 {
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.planet-4 {
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.pill {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-tertiary), var(--color-accent-light));
  color: var(--color-text);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
  box-shadow: 0 4px 10px rgba(251, 191, 36, 0.3);
  transform: translateY(0);
  transition: all 0.3s ease;
}

.pill:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(251, 191, 36, 0.4);
}

.subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
  line-height: 1.4;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.hero-stats {
  display: flex;
  gap: var(--space-md);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xxs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* Section intro */
.section-intro {
  max-width: 800px;
  margin-bottom: var(--space-lg);
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
}

/* Learn Section */
.learn-section {
  padding: var(--space-md) 0;
  position: relative;
  overflow: hidden;
}

.learn-section.section-blue {
  background: #f8fbff;
}

.learn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: 0;
  position: relative;
  z-index: 1;
}

.learn-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background-color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

.learn-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.check-icon {
  color: white;
  font-size: var(--font-size-md);
  font-weight: bold;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Modules Section */
.modules-section {
  padding: var(--space-md) 0;
  background: linear-gradient(135deg, rgba(246,250,255,0.95) 0%, rgba(230,240,255,0.95) 100%);
  width: 100%;
  position: relative;
}

.modules-section::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  top: 0;
  left: 0;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
}

.module-card {
  background-color: white;
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.module-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.module-card:hover::before {
  transform: scaleX(1);
}

.module-number {
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
  display: inline-block;
  padding: var(--space-xxs) var(--space-sm);
  background-color: var(--color-secondary);
  border-radius: var(--border-radius-sm);
}

.module-icon {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  color: var(--color-primary-light);
  opacity: 0.2;
  transition: all 0.3s ease;
}

.module-card:hover .module-icon {
  opacity: 0.5;
  transform: scale(1.2);
}

/* Audience Section */
.audience-section {
  padding: var(--space-md) 0;
  background: linear-gradient(120deg, rgba(247,251,255,0.95) 0%, rgba(234,243,251,0.95) 100%);
  width: 100%;
  position: relative;
  overflow: hidden;
}

.audience-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
}

.audience-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background-color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

.audience-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-tertiary);
}

.audience-icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-tertiary), var(--color-accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(251, 191, 36, 0.2);
  color: white;
  margin-bottom: var(--space-xs);
}

.audience-item h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-xs) 0;
}

.audience-item p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.5;
}

/* Format Section */
.format-section {
  padding: var(--space-md) 0;
  background: linear-gradient(135deg, rgba(245,250,255,0.95) 0%, rgba(227,240,250,0.95) 100%);
  width: 100%;
  position: relative;
  overflow: hidden;
}

.format-section::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 70% 20%, rgba(124, 58, 237, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 30% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  top: 0;
  left: 0;
}

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

.format-item {
  text-align: center;
  padding: var(--space-xl);
  background-color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.format-item::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.05), rgba(59, 130, 246, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.format-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.format-item:hover::before {
  opacity: 1;
}

.format-icon {
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  width: 60px;
  height: 60px;
  background-color: var(--color-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  margin-right: auto;
  transition: all 0.3s ease;
}

.format-item:hover .format-icon {
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  color: white;
  box-shadow: var(--shadow-glow);
}

/* Promo Section */
.promo-section {
  padding: var(--space-md) 0;
  position: relative;
}

.promo-box {
  background: linear-gradient(135deg, var(--color-secondary), white);
  border-radius: var(--border-radius-xl);
  padding: var(--space-xxl) var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  z-index: 1;
}

.promo-box::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.05), rgba(59, 130, 246, 0.05));
  border-radius: 50%;
  top: -300px;
  right: -300px;
  z-index: -1;
}

.promo-box::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.05), rgba(244, 114, 182, 0.05));
  border-radius: 50%;
  bottom: -200px;
  left: -200px;
  z-index: -1;
}

.promo-badge {
  background: linear-gradient(135deg, #ff6b6b, #ff9e7d);
  color: white;
  font-weight: 600;
  font-size: var(--font-size-md);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-full);
  display: inline-block;
  margin-bottom: var(--space-md);
  box-shadow: 0 4px 10px rgba(255, 107, 107, 0.5);
  position: absolute;
  top: -12px;
  right: -12px;
  z-index: 2;
}

.promo-features {
  margin: var(--space-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.promo-features li {
  position: relative;
  padding-left: var(--space-lg);
  text-align: left;
  transition: all 0.3s ease;
}

.promo-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: white;
  font-weight: bold;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
}

.promo-features li:hover {
  transform: translateX(5px);
}

/* Final CTA */
.final-cta {
  padding: var(--space-md) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-secondary), white);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
  top: 0;
  left: 0;
}

.final-cta h2 {
  margin-bottom: var(--space-md);
  position: relative;
  display: inline-block;
}

.final-cta h2::after {
  left: 50%;
  transform: translateX(-50%);
}

.final-cta p {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-xl);
  color: var(--color-text-light);
}

/* Footer */
footer {
  background-color: var(--color-background-alt);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  position: relative;
}

footer::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 10% 10%, rgba(124, 58, 237, 0.03) 0%, transparent 30%),
    radial-gradient(circle at 90% 90%, rgba(59, 130, 246, 0.03) 0%, transparent 30%);
  top: 0;
  left: 0;
}

.back-link {
  display: inline-block;
  margin-bottom: var(--space-xl);
  color: var(--color-text-light);
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  padding-left: 24px;
}

.back-link::before {
  content: "←";
  position: absolute;
  left: 0;
  transition: transform 0.3s ease;
}

.back-link:hover {
  color: var(--color-primary);
}

.back-link:hover::before {
  transform: translateX(-5px);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-xl);
  position: relative;
  z-index: 1;
}

.footer-logo {
  font-weight: 700;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
  position: relative;
}

.footer-logo::before {
  content: "";
  position: absolute;
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: var(--border-radius-full);
  left: -8px;
  top: -5px;
  z-index: -1;
  opacity: 0.2;
}

.footer-links {
  display: flex;
  gap: var(--space-xxl);
  flex-wrap: wrap;
}

.footer-column h3 {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-md);
  color: var(--color-text);
  position: relative;
  display: inline-block;
}

.footer-column h3::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  border-radius: var(--border-radius-full);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-column a {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
}

.footer-column a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-gradient-1), var(--color-gradient-2));
  transition: width 0.3s ease;
}

.footer-column a:hover {
  color: var(--color-primary);
}

.footer-column a:hover::after {
  width: 100%;
}

.copyright {
  color: var(--color-text-lighter);
  font-size: var(--font-size-sm);
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content,
.hero-image,
.learn-grid,
.modules-grid,
.audience-list,
.format-grid,
.promo-box,
.final-cta {
  animation: fadeIn 1s ease-out forwards;
}

.learn-item:nth-child(1) {
  animation-delay: 0.1s;
}
.learn-item:nth-child(2) {
  animation-delay: 0.2s;
}
.learn-item:nth-child(3) {
  animation-delay: 0.3s;
}
.learn-item:nth-child(4) {
  animation-delay: 0.4s;
}
.learn-item:nth-child(5) {
  animation-delay: 0.5s;
}
.learn-item:nth-child(6) {
  animation-delay: 0.6s;
}

.module-card:nth-child(1) {
  animation-delay: 0.1s;
}
.module-card:nth-child(2) {
  animation-delay: 0.2s;
}
.module-card:nth-child(3) {
  animation-delay: 0.3s;
}
.module-card:nth-child(4) {
  animation-delay: 0.4s;
}
.module-card:nth-child(5) {
  animation-delay: 0.5s;
}

.audience-item:nth-child(1) {
  animation-delay: 0.1s;
}
.audience-item:nth-child(2) {
  animation-delay: 0.2s;
}
.audience-item:nth-child(3) {
  animation-delay: 0.3s;
}
.audience-item:nth-child(4) {
  animation-delay: 0.4s;
}
.audience-item:nth-child(5) {
  animation-delay: 0.5s;
}

.format-item:nth-child(1) {
  animation-delay: 0.1s;
}
.format-item:nth-child(2) {
  animation-delay: 0.2s;
}
.format-item:nth-child(3) {
  animation-delay: 0.3s;
}
.format-item:nth-child(4) {
  animation-delay: 0.4s;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  h1 {
    font-size: var(--font-size-xxl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  .hero .container {
    flex-direction: column;
    text-align: center;
  }

  .hero h2::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .cta-buttons {
    justify-content: center;
  }

  .hero-image {
    order: -1;
    margin-bottom: var(--space-lg);
  }

  .hero-stats {
    justify-content: center;
  }

  .modules-grid,
  .learn-grid,
  .audience-list,
  .format-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .modules-grid,
  .learn-grid,
  .audience-list,
  .format-grid {
    grid-template-columns: 1fr;
  }

  nav ul {
    gap: var(--space-md);
  }

  .footer-content {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-xl);
  }
}

@media (max-width: 480px) {
  .navbar .container {
    flex-direction: column;
    gap: var(--space-md);
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-md);
  }

  .cta-divider {
    margin: -4px 0;
  }
}

/* Mobile menu */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: white;
    flex-direction: column;
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    z-index: 100;
  }

  nav ul.active {
    display: flex;
  }
}

section {
  min-height: unset !important;
  height: auto !important;
  padding-top: var(--space-xl) !important;
  padding-bottom: var(--space-xl) !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  position: relative;
}

.decorative-circle {
  position: absolute !important;
  pointer-events: none;
  z-index: 0;
}

.learn-grid,
.modules-grid,
.audience-list,
.format-grid {
  gap: var(--space-lg);
}

h2 {
  margin-bottom: var(--space-lg);
}

.section-intro {
  margin-bottom: var(--space-lg);
}

.subtitle {
  margin-bottom: var(--space-lg);
}

.cta-buttons {
  margin-bottom: var(--space-lg);
}

@media (max-width: 600px) {
  .hero-illustration {
    max-width: 160px;
    height: 160px;
    margin: 0 auto;
  }
  
  .illustration-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
  }
  
  .course-icon {
    width: 70px;
    height: 70px;
    z-index: 2;
  }
  
  .orbit {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
  }
  
  .planet {
    width: 16px;
    height: 16px;
    background: white;
    box-shadow: var(--shadow-md);
  }
  
  .planet svg {
    width: 12px;
    height: 12px;
  }
}

.comparison-grid {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  align-items: stretch;
  margin: 0 auto;
  max-width: 800px;
  flex-wrap: wrap;
}

.comparison-card {
  background: white;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xl) var(--space-lg);
  flex: 1 1 320px;
  min-width: 260px;
  max-width: 370px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 2px solid var(--color-border);
  transition: box-shadow 0.3s, border-color 0.3s;
  position: relative;
}

.comparison-card.highlighted {
  border-color: var(--color-primary);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.15);
  z-index: 1;
  background: linear-gradient(135deg, var(--color-gradient-1) 0%, var(--color-gradient-2) 100%);
  color: white;
}

.comparison-card.highlighted .promo-badge {
  background: linear-gradient(135deg, var(--color-tertiary), var(--color-gradient-2));
  color: var(--color-primary-dark);
  margin-bottom: var(--space-md);
}

.comparison-card.highlighted h3,
.comparison-card.highlighted .comparison-price,
.comparison-card.highlighted .comparison-features li {
  color: white;
}

.comparison-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.comparison-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg) 0;
  width: 100%;
}

.comparison-features li {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-sm);
  text-align: left;
  color: var(--color-text-light);
  position: relative;
  padding-left: 24px;
}

.comparison-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.comparison-card.highlighted .comparison-features li {
  color: white;
}

.comparison-card.highlighted .comparison-features li::before {
  color: white;
}

.comparison-price {
  font-size: var(--font-size-xxl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

@media (max-width: 800px) {
  .comparison-grid {
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 100%;
  }
  .comparison-card {
    max-width: 100%;
  }
}

.cta-primary-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.btn-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-align: center;
  margin-top: 2px;
}

.cta-divider {
  text-align: center;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  font-weight: 500;
  position: relative;
  margin: -8px 0;
  z-index: 1;
}

.cta-divider::before,
.cta-divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 35%;
  height: 1px;
  background: var(--color-border);
}

.cta-divider::before {
  left: 0;
}

.cta-divider::after {
  right: 0;
}