/* ===== CSS Variables ===== */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary-color: #7c3aed;
  --secondary-dark: #6d28d9;
  --accent-color: #059669;
  --accent-dark: #047857;
  --warning-color: #d97706;
  --danger-color: #dc2626;
  --dark-color: #111827;
  --light-color: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-light: #64748b;
  --border-color: #e2e8f0;
  --background: #ffffff;
  --surface: #f1f5f9;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --gradient-accent: linear-gradient(135deg, #059669 0%, #0891b2 100%);
  --gradient-hero: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Global Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition-fast);
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
}

.nav-logo i {
  font-size: 2rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  color: var(--text-primary);
  font-weight: 500;
  position: relative;
  transition: var(--transition-fast);
}

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

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  padding: 120px 0 80px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,106.7C1248,96,1344,96,1392,96L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
  background-size: cover;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease-out;
  color: #ffffff;
}

.gradient-text {
  background: linear-gradient(45deg, #60a5fa, #a78bfa, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  animation: fadeInUp 1s ease-out 0.2s both;
  color: #e2e8f0;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  animation: fadeInUp 1s ease-out 0.6s both;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: white;
  display: block;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.8;
}

.hero-image {
  position: relative;
  height: 600px;
}

.floating-card {
  position: absolute;
  background: white;
  padding: 1.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: float 6s ease-in-out infinite;
}

.floating-card i {
  font-size: 2rem;
  color: var(--primary-color);
}

.card-1 {
  top: 20%;
  right: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 50%;
  left: 10%;
  animation-delay: 2s;
}

.card-3 {
  bottom: 20%;
  right: 20%;
  animation-delay: 4s;
}

.hero-illustration {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
}

.gradient-circle {
  width: 100%;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 50%;
  opacity: 0.1;
  animation: pulse 4s ease-in-out infinite;
}

/* ===== Features Section ===== */
.features {
  padding: 80px 0;
  background: var(--surface);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  transition: var(--transition);
}

.feature-icon i {
  font-size: 2rem;
  color: white;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

/* ===== Popular Courses Section ===== */
.popular-courses {
  padding: 80px 0;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.course-card {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
}

.course-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.course-image {
  position: relative;
  overflow: hidden;
}

.course-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.course-card:hover .course-image img {
  transform: scale(1.05);
}

.course-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--gradient-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.course-content {
  padding: 1.5rem;
}

.course-category {
  color: var(--primary-color);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.course-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.course-content p {
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.course-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.course-meta i {
  color: var(--primary-color);
}

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

.course-rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--warning-color);
}

.course-rating span {
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.course-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
}

/* ===== CTA Section ===== */
.cta {
  padding: 80px 0;
  background: var(--gradient-primary);
  text-align: center;
}

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

.cta h2 {
  font-size: 2.5rem;
  color: white;
  margin-bottom: 1rem;
}

.cta p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.cta-form {
  display: flex;
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto;
}

.cta-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark-color);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: white;
  margin-bottom: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.footer-logo i {
  color: var(--primary-color);
}

.footer-section p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: var(--text-light);
  transition: var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--primary-light);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.newsletter-form input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  color: white;
}

.newsletter-form input::placeholder {
  color: var(--text-light);
}

.newsletter-form button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background: var(--primary-dark);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-light);
}

/* ===== Course Details Page ===== */
.course-details-hero {
  padding: 120px 0 80px;
  background: var(--gradient-hero);
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.course-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.course-breadcrumb a {
  color: #93c5fd;
  text-decoration: none;
  transition: var(--transition-fast);
}

.course-breadcrumb a:hover {
  color: #dbeafe;
}

.course-breadcrumb i {
  font-size: 0.75rem;
}

.course-hero-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #ffffff;
}

.course-hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: #e2e8f0;
}

.course-hero-meta {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.course-price {
  font-size: 2rem;
  font-weight: 700;
  color: #10b981;
}

.course-details-content {
  padding: 80px 0;
}

.course-details-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
}

.course-section {
  margin-bottom: 4rem;
}

.course-section h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.course-overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.overview-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.overview-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.overview-item i {
  font-size: 2rem;
  color: var(--primary-color);
}

.overview-item h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.overview-item p {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.learning-outcomes {
  display: grid;
  gap: 1rem;
}

.outcome-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--surface);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.outcome-item:hover {
  background: #f0fdf4;
}

.outcome-item i {
  color: var(--accent-color);
  font-size: 1.25rem;
}

.curriculum {
  display: grid;
  gap: 2rem;
}

.curriculum-module {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.module-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  background: var(--gradient-primary);
  color: white;
}

.module-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.module-duration {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
}

.module-lessons {
  padding: 1.5rem;
  list-style: none;
}

.module-lessons li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  padding-left: 2rem;
}

.module-lessons li:last-child {
  border-bottom: none;
}

.module-lessons li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-size: 0.75rem;
}

.course-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-card {
  background: var(--surface);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.sidebar-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
}

.sidebar-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.course-rating {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stars {
  display: flex;
  gap: 0.25rem;
}

.stars i {
  color: #fbbf24;
  font-size: 1rem;
}

.course-meta-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.meta-item i {
  color: var(--primary-color);
}

.course-price-final {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.price-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.price-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.btn-full-width {
  width: 100%;
  justify-content: center;
}

.money-back {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.instructor-info {
  display: flex;
  gap: 1rem;
}

.instructor-info img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.instructor-details h4 {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.instructor-details p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.instructor-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.instructor-rating .stars {
  gap: 0.125rem;
}

.instructor-rating span {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.instructor-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
  .course-details-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .course-overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .course-hero-content h1 {
    font-size: 2rem;
  }
  
  .course-hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .course-overview-grid {
    grid-template-columns: 1fr;
  }
  
  .module-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* ===== Page Specific Styles ===== */
.about-hero, .courses-hero, .blog-hero, .contact-hero {
  padding: 120px 0 80px;
  background: var(--gradient-hero);
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-title {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-subtitle {
  font-size: 1.25rem;
  color: #e2e8f0;
  margin-bottom: 2rem;
  font-weight: 400;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: #cbd5e1;
}

.breadcrumb a {
  color: #93c5fd;
  transition: var(--transition-fast);
}

.breadcrumb a:hover {
  color: #dbeafe;
}

/* About Page */
.mission {
  padding: 80px 0;
}

.mission-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.mission-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.mission-stats .stat-item {
  text-align: center;
}

.mission-stats .stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary-color);
  display: block;
}

.mission-stats .stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.values {
  padding: 80px 0;
  background: var(--surface);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.value-card {
  background: white;
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.value-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.value-icon i {
  font-size: 2rem;
  color: white;
}

.team {
  padding: 80px 0;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.team-member {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.team-member:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.member-image {
  position: relative;
  overflow: hidden;
}

.member-image img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition);
}

.team-member:hover .member-image img {
  transform: scale(1.05);
}

.member-social {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: var(--transition);
}

.team-member:hover .member-social {
  opacity: 1;
  transform: translateY(0);
}

.member-social a {
  width: 40px;
  height: 40px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  transition: var(--transition);
}

.member-social a:hover {
  background: var(--primary-color);
  color: white;
}

.member-info {
  padding: 1.5rem;
}

.member-role {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.member-bio {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.story {
  padding: 80px 0;
  background: var(--surface);
}

.story-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.story-image img {
  width: 100%;
  border-radius: var(--border-radius-lg);
}

/* Courses Page */
.courses-hero {
  padding: 120px 0 80px;
  background: var(--gradient-primary);
  color: white;
}

.course-filters {
  padding: 60px 0;
  background: var(--surface);
}

.filter-header {
  text-align: center;
  margin-bottom: 3rem;
}

.filter-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.filter-group {
  display: flex;
  flex-direction: column;
}

.filter-group label {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.filter-group select,
.filter-group input {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
}

.filter-group select:focus,
.filter-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.courses-section {
  padding: 60px 0;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 3rem;
}

.pagination-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-numbers {
  display: flex;
  gap: 0.5rem;
}

.pagination-number {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.pagination-number:hover,
.pagination-number.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Blog Page */
.blog-hero {
  padding: 120px 0 80px;
  background: var(--gradient-primary);
  color: white;
}

.featured-post {
  padding: 60px 0;
}

.featured-post-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.featured-post-image {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.featured-post-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.featured-post-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--gradient-primary);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 600;
}

.post-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.post-category {
  color: var(--primary-color);
  font-weight: 600;
}

.blog-categories {
  padding: 40px 0;
  background: var(--surface);
}

.categories-filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.category-btn {
  padding: 0.5rem 1rem;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}

.category-btn:hover,
.category-btn.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.blog-section {
  padding: 60px 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.blog-post {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.blog-post:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.post-image {
  position: relative;
  overflow: hidden;
}

.post-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.blog-post:hover .post-image img {
  transform: scale(1.05);
}

.post-category-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--gradient-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.post-content {
  padding: 1.5rem;
}

.post-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.post-content p {
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.read-more:hover {
  color: var(--primary-dark);
  transform: translateX(5px);
}

.newsletter {
  padding: 80px 0;
  background: var(--gradient-primary);
  text-align: center;
}

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

.newsletter h2 {
  font-size: 2.5rem;
  color: white;
  margin-bottom: 1rem;
}

.newsletter p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.newsletter-form-large {
  display: flex;
  gap: 1rem;
}

.newsletter-form-large input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
}

/* Contact Page */
.contact-hero {
  padding: 120px 0 80px;
  background: var(--gradient-primary);
  color: white;
}

.contact-section {
  padding: 80px 0;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.contact-items {
  margin: 2rem 0;
}

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon i {
  font-size: 1.25rem;
  color: white;
}

.contact-details h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.contact-details p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.social-contact h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.social-links-large {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--surface);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.form-container {
  background: white;
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.form-container h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.checkbox-group {
  display: flex;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
}

.faq-section {
  padding: 80px 0;
  background: var(--surface);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  padding: 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--surface);
}

.faq-question h3 {
  margin: 0;
  font-size: 1.125rem;
}

.faq-question i {
  transition: var(--transition);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-answer p {
  padding: 0 1.5rem 1.5rem;
  margin: 0;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.map-section {
  padding: 60px 0;
}

.map-content {
  text-align: center;
}

.map-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.map-placeholder {
  margin-top: 2rem;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.map-placeholder img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.2;
  }
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

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

.text-right {
  text-align: right;
}

.d-flex {
  display: flex;
}

.d-block {
  display: block;
}

.d-none {
  display: none;
}

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

.justify-between {
  justify-content: space-between;
}

.align-center {
  align-items: center;
}

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .hero-image {
    height: 400px;
  }
  
  .mission-content,
  .story-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .featured-post-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
    padding: 2rem 0;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .hero {
    padding: 100px 0 60px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
  }
  
  .hero-stats {
    justify-content: space-around;
    gap: 1rem;
  }
  
  .features,
  .popular-courses,
  .mission,
  .values,
  .team,
  .story,
  .course-filters,
  .courses-section,
  .blog-section,
  .contact-section,
  .faq-section,
  .map-section {
    padding: 60px 0;
  }
  
  .features-grid,
  .courses-grid,
  .blog-grid,
  .values-grid,
  .team-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .filter-controls {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .cta-form,
  .newsletter-form-large {
    flex-direction: column;
  }
  
  .social-links-large {
    grid-template-columns: 1fr;
  }
  
  .pagination {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .featured-post-image img {
    height: 250px;
  }
  
  .categories-filter {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 1rem;
  }
  
  .category-btn {
    white-space: nowrap;
  }
}