/* CSS Custom Properties for Theming */
:root {
  /* Light Theme Colors */
  --primary-color: #00d4ff;
  --secondary-color: #7c3aed;
  --accent-color: #ff6b35;
  --success-color: #10b981;
  --warning-color: #f7931e;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #e2e8f0;
  --bg-overlay: rgba(255, 255, 255, 0.9);
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-tertiary: #94a3b8;
  --text-inverse: #ffffff;
  
  --border-color: #e2e8f0;
  --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Animation Properties */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Layout */
  --container-width: 1200px;
  --section-padding: 100px 0;
  --border-radius: 16px;
  --border-radius-large: 24px;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f0f23;
  --bg-secondary: #16213e;
  --bg-tertiary: #1e2a54;
  --bg-overlay: rgba(15, 15, 35, 0.9);
  
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-inverse: #1e293b;
  
  --border-color: #334155;
  --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-heavy: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-medium), color var(--transition-medium);
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--bg-overlay);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-medium);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo .logo-text {
  font-family: 'Orbitron', monospace;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-logo .accent {
  color: var(--primary-color);
}

.nav-menu {
  display: flex;
  gap: 40px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--primary-color);
  transform: scale(1.1);
}

.theme-toggle::before {
  content: '';
  position: absolute;
  inset: 0;
  background: conic-gradient(from 0deg, var(--primary-color), var(--secondary-color), var(--primary-color));
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.theme-toggle:hover::before {
  opacity: 0.1;
}

.hamburger {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  transition: all var(--transition-medium);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
  padding-top: 80px;
  min-height:calc(100vh - 80px);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.blob-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  top: -250px;
  right: -250px;
  animation-delay: 0s;
}

.blob-2 {
  width: 300px;
  height: 300px;
  background: linear-gradient(45deg, var(--accent-color), var(--warning-color));
  bottom: -150px;
  left: -150px;
  animation-delay: 2s;
}

.blob-3 {
  width: 200px;
  height: 200px;
  background: linear-gradient(45deg, var(--success-color), var(--primary-color));
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-30px) rotate(120deg); }
  66% { transform: translateY(20px) rotate(240deg); }
}

.particles {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, var(--primary-color) 1px, transparent 1px),
    radial-gradient(circle at 70% 20%, var(--secondary-color) 1px, transparent 1px),
    radial-gradient(circle at 90% 80%, var(--accent-color) 1px, transparent 1px);
  background-size: 50px 50px, 80px 80px, 60px 60px;
  opacity: 0.3;
  animation: sparkle 4s linear infinite;
}

@keyframes sparkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

.hero-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

@media screen and (max-width: 768px) {
  .hero {
    padding-top: 120px;
  }
}


.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-text {
  z-index: 2;
}

.hero-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 30px;
}

.title-line {
  display: block;
  animation: slideUp 1s ease-out forwards;
  opacity: 0;
  transform: translateY(50px);
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.title-highlight {
  display: block;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: slideUp 1s ease-out forwards, glow 2s ease-in-out infinite alternate;
  animation-delay: 0.4s;
  opacity: 0;
  transform: translateY(50px);
}

@keyframes slideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glow {
  to {
    filter: drop-shadow(0 0 20px var(--primary-color));
  }
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  animation: fadeIn 1s ease-out 0.8s forwards;
  opacity: 0;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.hero-cta {
  display: flex;
  gap: 20px;
  animation: slideUp 1s ease-out 1s forwards;
  opacity: 0;
  transform: translateY(50px);
}

.cta-button {
  padding: 18px 36px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.cta-button.primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.cta-button.secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.button-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.cta-button:hover .button-glow {
  opacity: 1;
}

.hero-visual {
  position: relative;
  height: 500px;
  perspective: 1000px;
}

.visual-container {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  animation: rotate3D 20s linear infinite;
}

@keyframes rotate3D {
  from { transform: rotateY(0deg) rotateX(0deg); }
  to { transform: rotateY(360deg) rotateX(360deg); }
}

.hero-3d-element {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-3d-svg {
  width: 100%;
  height: auto;
  max-width: 500px;
  filter: drop-shadow(0 10px 30px rgba(0, 212, 255, 0.3));
  animation: float3D 6s ease-in-out infinite;
}

@keyframes float3D {
  0%, 100% { 
    transform: translateY(0px) rotateX(0deg) rotateY(0deg); 
  }
  33% { 
    transform: translateY(-15px) rotateX(5deg) rotateY(5deg); 
  }
  66% { 
    transform: translateY(10px) rotateX(-3deg) rotateY(-3deg); 
  }
}

.floating-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.float-element {
  position: absolute;
  font-size: 2rem;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
  animation: floatAround 8s ease-in-out infinite;
}

.element-1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.element-2 {
  top: 15%;
  right: 15%;
  animation-delay: 2s;
}

.element-3 {
  bottom: 25%;
  left: 15%;
  animation-delay: 4s;
}

.element-4 {
  bottom: 20%;
  right: 10%;
  animation-delay: 6s;
}

@keyframes floatAround {
  0%, 100% { 
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: 0.7;
  }
  25% { 
    transform: translate(20px, -15px) scale(1.1) rotate(90deg);
    opacity: 1;
  }
  50% { 
    transform: translate(-10px, -25px) scale(0.9) rotate(180deg);
    opacity: 0.8;
  }
  75% { 
    transform: translate(-20px, 10px) scale(1.2) rotate(270deg);
    opacity: 0.9;
  }
}

.visual-overlay {
  position: absolute;
  inset: 0;
  background: conic-gradient(from 0deg, transparent, var(--primary-color), transparent);
  opacity: 0.1;
  border-radius: 50%;
  animation: spin 10s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* About Section */
.about {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-secondary);
}

.about-bg {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  overflow: hidden;
}

.pattern-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
}

.about-card {
  background: var(--bg-primary);
  padding: 40px;
  border-radius: var(--border-radius-large);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
  transform: translateY(50px);
  opacity: 0;
}

.about-card.animate {
  transform: translateY(0);
  opacity: 1;
}

.about-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary-color);
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform var(--transition-medium);
}

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

.card-icon {
  margin-bottom: 24px;
  transform: scale(1);
  transition: transform var(--transition-medium);
}

.about-card:hover .card-icon {
  transform: scale(1.1);
}

.about-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.about-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* Courses Section */
.courses {
  padding: var(--section-padding);
  background: var(--bg-primary);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 40px;
}

.course-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-large);
  padding: 40px;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
  transform: translateY(50px);
  opacity: 0;
}

.course-card.animate {
  transform: translateY(0);
  opacity: 1;
}

.course-card.featured {
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.featured-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}

.course-card:hover {
  transform: translateY(-15px) rotateX(5deg);
  box-shadow: var(--shadow-heavy);
}

.course-card.featured:hover {
  transform: scale(1.08) translateY(-15px) rotateX(5deg);
}

.card-header {
  text-align: center;
  margin-bottom: 30px;
}

.card-icon {
  margin-bottom: 20px;
  transform: scale(1);
  transition: transform var(--transition-bounce);
}

.course-card:hover .card-icon {
  transform: scale(1.2) rotate(10deg);
}

.card-header h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-tagline {
  color: var(--text-secondary);
  font-style: italic;
}

.features-list {
  list-style: none;
  margin-bottom: 30px;
}

.features-list li {
  padding: 12px 0;
  color: var(--text-secondary);
  font-size: 1rem;
  position: relative;
  padding-left: 0;
  transition: color var(--transition-fast);
}

.course-card:hover .features-list li {
  color: var(--text-primary);
}

.card-price {
  text-align: center;
  margin-bottom: 30px;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
}

.duration {
  color: var(--text-secondary);
  font-size: 1rem;
}

.card-button {
  width: 100%;
  padding: 18px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border: none;
  border-radius: var(--border-radius);
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
}

.card-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.card-glow {
  position: absolute;
  inset: -2px;
  background: conic-gradient(from 0deg, var(--primary-color), var(--secondary-color), var(--accent-color), var(--primary-color));
  border-radius: var(--border-radius-large);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.course-card:hover .card-glow {
  opacity: 0.3;
}

/* Highlights Section */
.highlights {
  padding: var(--section-padding);
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.highlights-bg {
  position: absolute;
  inset: 0;
  opacity: 0.03;
}

.grid-pattern {
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(var(--text-primary) 1px, transparent 1px),
    linear-gradient(90deg, var(--text-primary) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  from { transform: translate(0, 0); }
  to { transform: translate(50px, 50px); }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.stat-card {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg-primary);
  border-radius: var(--border-radius-large);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
}

.stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.stat-card:hover::before {
  opacity: 0.05;
}

.stat-icon {
  margin-bottom: 20px;
  transform: scale(1);
  transition: transform var(--transition-bounce);
}

.stat-card:hover .stat-icon {
  transform: scale(1.2);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-family: 'Orbitron', monospace;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
}

/* Contact Section */
.contact {
  padding: var(--section-padding);
  background: var(--bg-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-form {
  transform: translateX(50px);
  opacity: 0;
  transition: all var(--transition-slow);
}

.contact-form.animate {
  transform: translateX(0);
  opacity: 1;
}

.form {
  background: var(--bg-secondary);
  padding: 40px;
  border-radius: var(--border-radius-large);
  border: 1px solid var(--border-color);
}

.form-group {
  position: relative;
  margin-bottom: 30px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 20px 0 5px 0;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-medium);
  outline: none;
  resize: none;
}

.form-group label {
  position: absolute;
  top: 20px;
  left: 0;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all var(--transition-medium);
  pointer-events: none;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group select:focus + label,
.form-group select:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
  top: 0;
  font-size: 0.9rem;
  color: var(--primary-color);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-bottom-color: var(--primary-color);
}

.form-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: width var(--transition-medium);
}

.form-group input:focus ~ .form-line,
.form-group select:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
  width: 100%;
}

.submit-button {
  width: 100%;
  padding: 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border: none;
  border-radius: var(--border-radius);
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-medium);
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.contact-info {
  transform: translateX(-50px);
  opacity: 0;
  transition: all var(--transition-slow);
}

.contact-info.animate {
  transform: translateX(0);
  opacity: 1;
}

.info-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-large);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.info-header {
  padding: 40px;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.info-header h3 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.map-container {
  height: 300px;
  overflow: hidden;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(100%);
  transition: filter var(--transition-medium);
}

.map-container:hover iframe {
  filter: grayscale(0%);
}

.contact-details {
  padding: 30px 40px;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 0;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.detail-item:hover {
  color: var(--primary-color);
}

/* Footer */
.footer {
  background: var(--bg-tertiary);
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand .logo-text {
  font-family: 'Orbitron', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  display: block;
}

.footer-brand p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.link-group h4 {
  color: var(--text-primary);
  margin-bottom: 20px;
  font-weight: 600;
}

.link-group a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
}

/* Animations */
@keyframes slideInUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

@keyframes counterAnimation {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}

.animate-counter {
  animation: counterAnimation 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-overlay);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: start;
    align-items: center;
    padding-top: 60px;
    gap: 30px;
    transform: translateX(-100%);
    transition: transform var(--transition-medium);
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
  
  .hamburger {
    display: flex;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .courses-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-button {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  .nav-container {
    padding: 0 15px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .about-card {
    padding: 30px 20px;
  }
  
  .course-card {
    padding: 30px 20px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .form {
    padding: 30px 20px;
  }
}

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

/* Print Styles */
@media print {
  .navbar,
  .hero-bg,
  .particles,
  .blob-container {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .section-title {
    color: black;
  }
}