/* Reset and base styles */
:root {
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #3b82f6 100%);
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --accent-color: #38bdf8;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
  }
  
  /* Navigation */
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
  }
  
  .nav-logo img {
    height: 5rem;
  }
  
  .nav-links {
    display: flex;
    gap: 2rem;
  }
  
  .nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
  }
  
  .nav-links a:hover {
    color: var(--text-primary);
  }
  
  .nav-buttons {
    display: flex;
    gap: 1rem;
  }
  
  .btn-signin {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--text-secondary);
    color: var(--text-primary);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .btn-download {
    padding: 0.5rem 1rem;
    background: var(--accent-color);
    border: none;
    color: var(--bg-darker);
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  /* Hero Section */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--primary-gradient);
    position: relative;
    overflow: hidden;
  }
  
  .hero::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-darker) 70%);
    opacity: 0.7;
  }
  
  .hero-content {
    text-align: center;
    max-width: 800px;
    position: relative;
    z-index: 1;
  }
  
  .hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
  }
  
  .hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
  }
  
  .btn-primary {
    padding: 1rem 2rem;
    background: var(--text-primary);
    color: var(--bg-darker);
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .btn-secondary {
    padding: 1rem 2rem;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--text-secondary);
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  /* Main Image Section */
  .main-image {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4rem 2rem;
    background: var(--bg-darker);
  }
  
  .centered-image {
    max-width: 75%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  /* Features Section */
  .features {
    padding: 6rem 2rem;
    background: var(--bg-darker);
  }
  
  .features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 1rem;
    transition: transform 0.3s ease;
  }
  
  .feature-card:hover {
    transform: translateY(-5px);
  }
  
  .feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
  }
  
  .feature-card p {
    color: var(--text-secondary);
  }
  
  .feature-image {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
  }
  
  /* Documentation Section */
  .documentation-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
  }
  
  .documentation-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .doc-section {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
  }
  
  .doc-section h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
  }
  
  .doc-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
  }
  
  .doc-section a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
  }
  
  .doc-section a:hover {
    color: var(--text-primary);
    text-decoration: underline;
  }
  
  .doc-section ul, .doc-section ol {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-left: 2rem;
    margin-bottom: 1rem;
  }
  
  .doc-section code {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 0.3rem;
    font-family: 'Courier New', monospace;
    color: var(--accent-color);
  }
  
  .doc-section pre {
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin-bottom: 1rem;
  }
  
  .doc-section pre code {
    background: transparent;
    padding: 0;
  }
  
  .doc-image {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 0.5rem;
    margin: 1rem 0;
    display: block;
  }
  
  .doc-image-small {
    width: 70%;
    max-width: 560px;
  }
  
  /* Footer */
  footer {
    background: var(--bg-darker);
    padding: 4rem 2rem 2rem;
  }
  
  .footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
  }
  
  .footer-section a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
  }
  
  .footer-section a:hover {
    color: var(--text-primary);
  }
  
  .footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .nav-links {
      display: none;
    }
    
    .hero h1 {
      font-size: 3rem;
    }
    
    .hero-subtitle {
      font-size: 1.2rem;
    }
    
    .hero-buttons {
      flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
      width: 100%;
    }
  }
  
  /* Animations */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .hero-content, .feature-card {
    animation: fadeIn 1s ease-out;
  }