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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

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

/* Header */
.site-header {
  background-color: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 1rem 0;
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  text-decoration: none;
  color: #2c3e50;
  font-size: 1.5rem;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 38px;
  height: 38px;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
}

.menu-toggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  display: none;
}

.nav {
  display: flex;
  gap: 20px;
}

.nav a {
  text-decoration: none;
  color: #2c3e50;
  font-weight: 500;
  transition: color 0.3s;
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

.nav a:hover,
.nav a.active {
  color: #3498db;
  background-color: #f0f7ff;
}

/* Main Content */
main {
  padding: 40px 0;
}

.section {
  margin-bottom: 40px;
}

.section h1 {
  font-size: 2.5rem;
  color: #2c3e50;
  margin-bottom: 20px;
}

.section h2 {
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid #3498db;
}

.section h3 {
  font-size: 1.5rem;
  color: #34495e;
  margin-bottom: 10px;
}

.section p {
  margin-bottom: 15px;
}

.text-content {
  list-style-position: inside;
  margin-left: 20px;
}

.text-content li {
  margin-bottom: 10px;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 10px;
  margin-bottom: 40px;
}

.hero-section h1 {
  font-size: 3rem;
  color: white;
  margin-bottom: 10px;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 30px;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: #3498db;
  color: white;
}

.btn-primary:hover {
  background-color: #2980b9;
}

.btn-outline {
  background-color: transparent;
  border: 2px solid white;
  color: white;
}

.btn-outline:hover {
  background-color: white;
  color: #667eea;
}

/* Feature Lists */
.feature-list {
  list-style: none;
  padding-left: 0;
}

.feature-list li {
  padding: 10px 0;
  padding-left: 30px;
  position: relative;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #27ae60;
  font-weight: bold;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.feature-card {
  background-color: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.feature-card h3 {
  margin-bottom: 10px;
  color: #2c3e50;
}

.feature-card p {
  color: #7f8c8d;
  font-size: 0.95rem;
}

/* Course Preview */
.course-preview {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.course-item {
  background-color: white;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.course-item h3 {
  color: #3498db;
  margin-bottom: 15px;
  font-size: 1.4rem;
}

.course-item p {
  color: #7f8c8d;
}

.course-item-full {
  background-color: white;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}

/* Contact Info */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.contact-item {
  background-color: white;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  text-align: center;
}

.contact-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.contact-item h3 {
  margin-bottom: 10px;
  color: #2c3e50;
}

.contact-item p {
  color: #7f8c8d;
}

/* Contact Form */
.contact-form {
  background-color: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  max-width: 600px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #2c3e50;
}

.form-control {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: #3498db;
}

/* Alerts */
.alert {
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
  border-left: 4px solid;
}

.alert-success {
  background-color: #d4edda;
  border-color: #28a745;
  color: #155724;
}

.alert-error {
  background-color: #f8d7da;
  border-color: #dc3545;
  color: #721c24;
}

/* Footer */
.site-footer {
  background-color: #2c3e50;
  color: white;
  padding: 40px 0 20px;
  margin-top: 60px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-section h3 {
  margin-bottom: 15px;
  color: white;
}

.footer-section ul {
  list-style: none;
  padding-left: 0;
}

.footer-section li {
  margin-bottom: 8px;
}

.footer-section a {
  color: #bdc3c7;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom small {
  color: #bdc3c7;
}

/* About Hero */
.about-hero {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 10px;
  margin-bottom: 40px;
}

.about-hero h1 {
  font-size: 2.5rem;
  color: white;
  margin-bottom: 10px;
}

.about-hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
}

/* Error Page */
.error-page {
  text-align: center;
  padding: 60px 20px;
}

.error-code {
  font-size: 8rem;
  color: #3498db;
  font-weight: bold;
  margin-bottom: 10px;
}

.error-title {
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 15px;
}

.error-message {
  font-size: 1.2rem;
  color: #7f8c8d;
  margin-bottom: 30px;
}

/* Map Placeholder */
.map-placeholder {
  background-color: #e9ecef;
  border-radius: 8px;
  padding: 60px;
  text-align: center;
  margin: 30px 0;
}

.map-placeholder-content p {
  color: #7f8c8d;
  margin: 10px 0;
}

/* Social Links */
.social-links {
  display: flex;
  gap: 15px;
  list-style: none;
  padding-left: 0;
}

.social-links a {
  display: inline-block;
  padding: 10px 20px;
  background-color: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.social-links a:hover {
  background-color: #2980b9;
}

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

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  .nav.active {
    display: flex;
  }

  .hero-section h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .section h1 {
    font-size: 2rem;
  }

  .section h2 {
    font-size: 1.5rem;
  }
}

/* One Column Layout */
.one-col-layout {
  grid-template-columns: 1fr;
}

/* Two Column Layout */
.two-col-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}