:root {
      --primary: #3b82f6;
      --primary-dark: #2563eb;
      --primary-light: #60a5fa;
      --secondary: #7c3aed;
      --accent: #06b6d4;
      --dark: #0f172a;
      --darker: #020617;
      --light: #f8fafc;
      --gray: #64748b;
      --light-gray: #cbd5e1;
      --border: #334155;
      --success: #10b981;
      --warning: #f59e0b;
      --danger: #ef4444;
      --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      --radius: 8px;
      --transition: all 0.3s ease;
      --glow: 0 0 15px rgba(59, 130, 246, 0.5);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', sans-serif;
      line-height: 1.6;
      background: var(--darker);
      color: var(--light);
      overflow-x: hidden;
    }

    /* Typography */
    h1, h2, h3, h4, h5, h6 {
      font-weight: 600;
      line-height: 1.3;
      margin-bottom: 1rem;
    }

    h1 {
      font-size: 2.5rem;
    }

    h2 {
      font-size: 2rem;
      color: var(--primary-light);
      margin-top: 2.5rem;
      padding-bottom: 0.5rem;
      border-bottom: 1px solid var(--border);
    }

    h3 {
      font-size: 1.5rem;
      color: var(--light);
    }

    p {
      margin-bottom: 1rem;
      color: var(--light-gray);
    }

    .lead {
      font-size: 1.25rem;
      color: var(--light-gray);
    }

    /* Navigation */
    .navbar {
      background: rgba(15, 23, 42, 0.9);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 100;
      padding: 1rem 0;
    }

    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--light);
    }

    .logo-icon {
      background: var(--primary);
      width: 36px;
      height: 36px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      box-shadow: var(--glow);
    }

    .nav-menu {
      display: flex;
      gap: 2rem;
    }

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

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

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

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

    .bar {
      width: 25px;
      height: 3px;
      background: var(--light);
      margin: 3px 0;
      transition: var(--transition);
      border-radius: 2px;
    }

    /* Hero Section */
    .hero {
      background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(124, 58, 237, 0.1));
      border-bottom: 1px solid var(--border);
      padding: 4rem 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><path fill="rgba(59,130,246,0.05)" d="M0,0 L100,100 M100,0 L0,100"></path></svg>');
      background-size: 100px 100px;
      opacity: 0.3;
    }

    .hero-content {
      max-width: 800px;
      margin: 0 auto;
      padding: 0 1.5rem;
      position: relative;
      z-index: 2;
    }

    /* Main Content */
    .main-content {
      max-width: 1200px;
      margin: 0 auto;
      padding: 3rem 1.5rem;
    }

    .section {
      margin-bottom: 4rem;
    }

    /* Cards */
    .card {
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      margin-bottom: 2rem;
      transition: var(--transition);
    }

    .card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
    }

    .glow-card {
      box-shadow: var(--glow);
      border-color: var(--primary);
    }

    .card-header {
      padding: 1.5rem;
      border-bottom: 1px solid var(--border);
      background: rgba(30, 41, 59, 0.5);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .card-body {
      padding: 1.5rem;
    }

    /* Code Blocks */
    .code-container {
      position: relative;
      margin: 1.5rem 0;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .code-header {
      background: #1a1f2e;
      color: var(--light-gray);
      padding: 0.75rem 1rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      font-family: 'Fira Code', monospace;
    }

    .copy-btn {
      background: none;
      border: none;
      color: var(--light-gray);
      cursor: pointer;
      padding: 0.25rem 0.5rem;
      border-radius: 4px;
      transition: var(--transition);
    }

    .copy-btn:hover {
      background: rgba(255, 255, 255, 0.1);
      color: var(--light);
    }

    pre {
      background: #1e293b;
      color: #e2e8f0;
      padding: 1.5rem;
      overflow-x: auto;
      margin: 0;
      font-family: 'Fira Code', monospace;
      font-size: 0.9rem;
      line-height: 1.5;
    }

    code {
      font-family: 'Fira Code', monospace;
      background: rgba(30, 41, 59, 0.7);
      padding: 0.2rem 0.4rem;
      border-radius: 4px;
      font-size: 0.9rem;
      color: var(--primary-light);
    }

    /* Example Output */
    .example-output {
      background: rgba(30, 41, 59, 0.5);
      border-radius: var(--radius);
      padding: 1.5rem;
      margin-top: 1.5rem;
      min-height: 200px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.75rem 1.5rem;
      border-radius: var(--radius);
      text-decoration: none;
      font-weight: 600;
      transition: var(--transition);
      border: none;
      cursor: pointer;
      font-size: 0.95rem;
    }

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

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

    .btn-outline {
      background: transparent;
      color: var(--primary-light);
      border: 1px solid var(--primary);
    }

    .btn-outline:hover {
      background: rgba(59, 130, 246, 0.1);
      transform: translateY(-2px);
    }

    /* Example Grid */
    .example-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
      gap: 2rem;
      margin: 2rem 0;
    }

    .example-card {
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
    }

    .example-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }

    .example-card-header {
      padding: 1.25rem;
      border-bottom: 1px solid var(--border);
      background: rgba(30, 41, 59, 0.5);
    }

    .example-card-body {
      padding: 1.25rem;
    }

    /* Demo Elements */
    .demo-box {
      width: 100px;
      height: 100px;
      background: var(--primary);
      border-radius: var(--radius);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: 600;
      margin: 0 auto;
      transition: var(--transition);
    }

    .demo-flex {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
    }

    .demo-item {
      padding: 1rem;
      background: rgba(59, 130, 246, 0.1);
      border-radius: var(--radius);
      border: 1px solid var(--primary);
      text-align: center;
      min-width: 100px;
    }

    /* Tabs */
    .tabs {
      display: flex;
      border-bottom: 1px solid var(--border);
      margin-bottom: 1.5rem;
    }

    .tab {
      padding: 0.75rem 1.5rem;
      background: transparent;
      border: none;
      color: var(--light-gray);
      cursor: pointer;
      transition: var(--transition);
      border-bottom: 2px solid transparent;
    }

    .tab.active {
      color: var(--primary-light);
      border-bottom-color: var(--primary);
    }

    .tab-content {
      display: none;
    }

    .tab-content.active {
      display: block;
    }

    /* Footer */
    .footer {
      background: var(--dark);
      border-top: 1px solid var(--border);
      padding: 3rem 0 1.5rem;
      margin-top: 4rem;
    }

    .footer-content {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 2rem;
    }

    .footer-section h4 {
      margin-bottom: 1rem;
      color: var(--light);
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 1rem;
      font-weight: 700;
      font-size: 1.25rem;
    }

    .footer-links {
      list-style: none;
    }

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

    .footer-links a {
      color: var(--light-gray);
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--primary-light);
    }

    .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
      padding: 1.5rem 1.5rem 0;
      border-top: 1px solid var(--border);
      text-align: center;
      color: var(--gray);
      font-size: 0.9rem;
    }

    /* Animations */
    .fade-in {
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .fade-in.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--dark);
        flex-direction: column;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        z-index: 99;
      }

      .nav-menu.active {
        left: 0;
      }

      .nav-toggle {
        display: flex;
      }

      .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
      }

      .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
      }

      .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
      }

      h1 {
        font-size: 2rem;
      }

      h2 {
        font-size: 1.75rem;
      }

      .example-grid {
        grid-template-columns: 1fr;
      }
    }

    /* Interactive Elements */
    .interactive-controls {
      display: flex;
      gap: 1rem;
      margin: 1rem 0;
      flex-wrap: wrap;
    }

    .control-group {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .control-label {
      font-size: 0.9rem;
      color: var(--light-gray);
    }

    .control-input {
      padding: 0.5rem;
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--light);
      font-family: 'Fira Code', monospace;
    }

    .control-input:focus {
      outline: none;
      border-color: var(--primary);
    }

    /* Live Editor */
    .live-editor {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
      margin: 2rem 0;
    }

    @media (max-width: 1024px) {
      .live-editor {
        grid-template-columns: 1fr;
      }
    }

    .editor-panel {
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
    }

    .editor-header {
      padding: 1rem;
      background: rgba(30, 41, 59, 0.5);
      border-bottom: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .editor-content {
      padding: 1.5rem;
      min-height: 300px;
      max-height: 400px;
      overflow-y: auto;
    }

    .editor-textarea {
      width: 100%;
      height: 100%;
      background: transparent;
      border: none;
      color: var(--light);
      font-family: 'Fira Code', monospace;
      font-size: 0.9rem;
      line-height: 1.5;
      resize: none;
    }

    .editor-textarea:focus {
      outline: none;
    }

    /* Badges */
    .badge {
      display: inline-block;
      padding: 0.25rem 0.5rem;
      background: var(--primary);
      color: white;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 600;
    }

    .badge-secondary {
      background: var(--secondary);
    }

    .badge-accent {
      background: var(--accent);
    }

    /* Feature Highlights */
    .feature-highlights {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1.5rem;
      margin: 2rem 0;
    }

    .feature-highlight {
      background: rgba(30, 41, 59, 0.5);
      border-radius: var(--radius);
      padding: 1.5rem;
      text-align: center;
      transition: var(--transition);
    }

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

    .feature-icon {
      width: 60px;
      height: 60px;
      background: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 1rem;
      font-size: 1.5rem;
      box-shadow: var(--glow);
    }

    /* Interactive Demo Styles */
    .interactive-demo {
      position: relative;
      padding: 2rem;
      background: rgba(30, 41, 59, 0.5);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      margin: 1.5rem 0;
    }

    .demo-container {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      align-items: center;
      min-height: 200px;
    }

    .demo-element {
      padding: 1rem;
      background: var(--primary);
      color: white;
      border-radius: var(--radius);
      transition: all 0.3s ease;
    }

    .demo-controls {
      display: flex;
      gap: 1rem;
      margin-top: 1.5rem;
      flex-wrap: wrap;
    }

    .demo-btn {
      padding: 0.5rem 1rem;
      background: rgba(59, 130, 246, 0.2);
      border: 1px solid var(--primary);
      border-radius: var(--radius);
      color: var(--primary-light);
      cursor: pointer;
      transition: var(--transition);
    }

    .demo-btn:hover {
      background: rgba(59, 130, 246, 0.3);
    }

    .demo-btn.active {
      background: var(--primary);
      color: white;
    }