* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  /* Header */
  .header {
    background-color: #4F5B93;
    color: white;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }
  
  .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
  }
  
  .logo-img {
    height: 40px;
    width: auto;
  }
  .hero-img {
    height: 60px;
    width: auto;
  }
  .language-select {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
  }
  
  .language-select option {
    background-color: #4F5B93;
    color: white;
  }
  
/* Hero Section */
.hero {
  background-color: #4F5B93;
  color: white;
  min-height: 83vh;
  margin: 20px;
  border-radius: 8px;

  /* ✅ Center all content */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;

  /* ✅ Soft shadow on right and bottom */
  box-shadow: 6px 6px 18px rgba(0, 0, 0, 0.25);
}


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

  /* ✅ Align items in a row and center them */
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px; /* space between row items */
}

  
  .hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    opacity: 0.95;
  }
  
  .hero-description {
    font-size: 1.125rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .cta-button {
    display: inline-block;
    background-color: white;
    color: #777BB3;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  
  .cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  }
  
  /* Features Section */
  .features {
    padding: 80px 0;
  }
  
  .section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #333;
  }
  
  .feature {
    margin-bottom: 80px;
    padding: 40px;
    background-color: #f8f9fa;
    border-radius: 12px;
    border: 1px solid #e9ecef;
  }
  
  .feature-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .feature-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: #333;
    flex: 1;
  }
  
  .rfc-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #777BB3;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 6px 12px;
    border: 1px solid #777BB3;
    border-radius: 6px;
    transition: all 0.2s ease;
  }
  
  .rfc-link:hover {
    background-color: #777BB3;
    color: white;
  }
  
  .rfc-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }
  
  .external-icon {
    width: 14px;
    height: 14px;
  }
  
  /* Code Comparison */
  .code-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    margin-bottom: 30px;
    align-items: start;
  }
  
  .code-block {
    background-color: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  
  .code-header {
    background-color: #2d2d2d;
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #404040;
  }
  
  .code-label {
    color: #e0e0e0;
    font-weight: 500;
    font-size: 0.9rem;
  }
  
  .new-badge {
    background-color: #28a745;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  
  .copy-btn {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s ease;
  }
  
  
  .copy-btn:hover {
    color: #fff;
  }
  
  .code-block pre {
    margin: 0;
    padding: 20px;
    overflow-x: auto;
  }
  
  .code-block code {
    color: #e0e0e0;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
  }
  
  .arrow-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
  }
  
  .arrow-icon {
    color: #777BB3;
    width: 32px;
    height: 32px;
  }
  
  /* Feature Description */
  .feature-description {
    color: #555;
    line-height: 1.7;
  }
  
  .feature-description p {
    margin-bottom: 16px;
  }
  
  .feature-description a {
    color: #777BB3;
    text-decoration: none;
  }
  
  .feature-description a:hover {
    text-decoration: underline;
  }
  
  /* Additional Features */
  .additional-features {
    margin-top: 60px;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
  }
  
  .feature-card {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }
  
  .feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
  }
  
  .feature-card ul {
    list-style: none;
    padding: 0;
  }
  
  .feature-card li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
  }
  
  .feature-card li:last-child {
    border-bottom: none;
  }
  
  .feature-card a {
    color: #777BB3;
    text-decoration: none;
  }
  
  .feature-card a:hover {
    text-decoration: underline;
  }
  
  /* CTA Section */
  .cta-section {
    background-color: #777BB3;
    color: white;
    padding: 60px 0;
    text-align: center;
  }
  
  .cta-content h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 30px;
  }
  
  /* Resources Section */
  .resources {
    padding: 60px 0;
    background-color: #f8f9fa;
  }
  
  .resources-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .resources-content p {
    margin-bottom: 20px;
    color: #555;
    line-height: 1.7;
  }
  
  .resources-content a {
    color: #777BB3;
    text-decoration: none;
  }
  
  .resources-content a:hover {
    text-decoration: underline;
  }
  
  /* Footer */
  .footer {
    background-color: #4F5B93;
    color: white;
    padding: 30px 0;
    text-align: center;
  }
  
  .footer p {
    margin: 0;
    opacity: 0.8;
  }
  
  /* Responsive Design */
  @media (max-width: 1024px) {
    .code-comparison {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    
    .arrow-container {
      transform: rotate(90deg);
      padding: 10px 0;
    }
    
    .features-grid {
      grid-template-columns: 1fr;
    }
  }
  
  @media (max-width: 768px) {
  
    
    .hero-subtitle {
      font-size: 1.25rem;
    }
    
    .section-title {
      font-size: 2rem;
    }
    
    .feature {
      padding: 30px 20px;
    }
    
    .feature-header {
      flex-direction: row;
      align-items: flex-start;
    }
    
    .feature-title {
      font-size: 1.5rem;
      margin-bottom: 16px;
    }
    
    .nav-container {
      flex-direction: row;
      height: auto;
      padding: 15px 20px;
      gap: 15px;
    }
    
    .code-block pre {
      padding: 15px;
    }
    
    .code-block code {
      font-size: 0.8rem;
    }
  }
  
  @media (max-width: 480px) {
    .hero {
      padding: 90px 0;
      margin: 8;
    }
  
    
    .cta-button {
      padding: 12px 24px;
      font-size: 1rem;
    }
    
    .feature {
      margin-bottom: 60px;
    }
    
    .features {
      padding: 60px 0;
    }
  }
  
  /* Copy button feedback */
  .copy-btn.copied {
    color: #28a745;
  }
  
  .copy-btn.copied::after {
    content: " ✓";
  }
  