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

      :root {
        --primary: #6366f1;
        --primary-dark: #4f46e5;
        --primary-light: #8b5cf6;
        --secondary: #10b981;
        --secondary-dark: #059669;
        --accent: #f59e0b;
        --dark: #1e293b;
        --dark-light: #334155;
        --dark-lighter: #475569;
        --light: #f8fafc;
        --light-dark: #e2e8f0;
        --border: #e2e8f0;
        --text: #0f172a;
        --text-muted: #64748b;
        --text-light: #94a3b8;
        --shadow: rgba(0, 0, 0, 0.1);
        --shadow-lg: rgba(0, 0, 0, 0.15);
        --shadow-xl: rgba(0, 0, 0, 0.25);
        --bg-gradient-1: #ffffff;
        --bg-gradient-2: #f8fafc;
        --glass-bg: rgba(255, 255, 255, 0.25);
        --glass-border: rgba(255, 255, 255, 0.18);
        --blur: blur(10px);
        --animation-speed: 0.3s;
        --animation-timing: cubic-bezier(0.4, 0, 0.2, 1);
      }

      [data-theme="dark"] {
        --primary: #818cf8;
        --primary-dark: #6366f1;
        --primary-light: #a78bfa;
        --secondary: #34d399;
        --secondary-dark: #10b981;
        --accent: #fbbf24;
        --dark: #0f172a;
        --dark-light: #1e293b;
        --dark-lighter: #334155;
        --light: #0f172a;
        --light-dark: #1e293b;
        --border: #334155;
        --text: #f1f5f9;
        --text-muted: #cbd5e1;
        --text-light: #94a3b8;
        --shadow: rgba(0, 0, 0, 0.4);
        --shadow-lg: rgba(0, 0, 0, 0.5);
        --shadow-xl: rgba(0, 0, 0, 0.6);
        --bg-gradient-1: #0f172a;
        --bg-gradient-2: #020617;
        --glass-bg: rgba(15, 23, 42, 0.25);
        --glass-border: rgba(255, 255, 255, 0.1);
      }

      body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        line-height: 1.6;
        color: var(--text);
        background: linear-gradient(135deg, var(--bg-gradient-1) 0%, var(--bg-gradient-2) 100%);
        min-height: 100vh;
        position: relative;
        overflow-x: hidden;
        animation: fadeIn 1s ease-out;
      }

      @keyframes fadeIn {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
      }

      body::before {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background:
          radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
          radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
          radial-gradient(circle at 40% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
          radial-gradient(circle at 60% 30%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
        z-index: -2;
        pointer-events: none;
        animation: float 20s ease-in-out infinite;
      }

      @keyframes float {
        0%, 100% { transform: translateY(0px) rotate(0deg); }
        33% { transform: translateY(-10px) rotate(1deg); }
        66% { transform: translateY(10px) rotate(-1deg); }
      }

      /* Animated background shapes */
      body::after {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-image:
          radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
          radial-gradient(circle at 75% 75%, rgba(16, 185, 129, 0.05) 0%, transparent 50%),
          radial-gradient(circle at 50% 50%, rgba(245, 158, 11, 0.03) 0%, transparent 50%);
        z-index: -1;
        pointer-events: none;
        animation: pulse 15s ease-in-out infinite;
      }

      @keyframes pulse {
        0%, 100% { opacity: 0.5; transform: scale(1); }
        50% { opacity: 1; transform: scale(1.05); }
      }

      [data-theme="dark"] body::before {
        background: radial-gradient(
            circle at 20% 50%,
            rgba(99, 102, 241, 0.08) 0%,
            transparent 50%
          ),
          radial-gradient(
            circle at 80% 80%,
            rgba(139, 92, 246, 0.08) 0%,
            transparent 50%
          ),
          radial-gradient(
            circle at 40% 20%,
            rgba(236, 72, 153, 0.05) 0%,
            transparent 50%
          ),
          radial-gradient(
            circle at 60% 30%,
            rgba(52, 211, 153, 0.05) 0%,
            transparent 50%
          );
      }

      .container {
        max-width: 900px;
        margin: 0 auto;
        padding: 2rem 1rem 4rem;
      }

      /* Navigation Header */
      .nav-header {
        background: var(--glass-bg);
        backdrop-filter: var(--blur);
        border-bottom: 1px solid var(--glass-border);
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 20px var(--shadow);
        transition: all var(--animation-speed) var(--animation-timing);
        animation: slideDown 0.8s ease-out;
      }

      @keyframes slideDown {
        from { transform: translateY(-100%); opacity: 0; }
        to { transform: translateY(0); opacity: 1; }
      }

      .nav-header:hover {
        background: rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(20px);
        box-shadow: 0 4px 30px var(--shadow-lg);
      }

      [data-theme="dark"] .nav-header {
        background: var(--glass-bg);
        border-color: var(--glass-border);
      }

      [data-theme="dark"] .nav-header:hover {
        background: rgba(15, 23, 42, 0.3);
      }

      .nav-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 1rem 2rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .nav-brand .brand-link {
        text-decoration: none;
        color: var(--primary);
        font-weight: 700;
        font-size: 1.5rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
      }

      .brand-icon {
        width: 44px;
        height: 44px;
        object-fit: cover;
        border-radius: 8px;
        display: inline-block;
        border: 2px solid rgba(0,0,0,0.06);
        background: white;
      }

      .nav-brand .brand-text {
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }

      .nav-controls {
        display: flex;
        align-items: center;
        gap: 1rem;
      }

      .nav-home-btn {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.5rem 1rem;
        border-radius: 12px;
        background: var(--glass-bg);
        color: var(--text);
        text-decoration: none;
        font-weight: 500;
        font-size: 0.9rem;
        border: 1px solid var(--glass-border);
        transition: all var(--animation-speed) var(--animation-timing);
        backdrop-filter: var(--blur);
        position: relative;
        overflow: hidden;
      }

      .nav-home-btn::before {
        content: "";
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
        transition: left 0.6s ease;
      }

      .nav-home-btn:hover::before {
        left: 100%;
      }

      .nav-home-btn:hover {
        background: var(--primary);
        color: white;
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
        border-color: var(--primary);
      }

      [data-theme="dark"] .nav-home-btn {
        background: var(--glass-bg);
        border-color: var(--glass-border);
      }

      .theme-toggle {
        background: none;
        border: 2px solid var(--border);
        border-radius: 12px;
        padding: 0.5rem;
        font-size: 1.2rem;
        cursor: pointer;
        transition: all var(--animation-speed) var(--animation-timing);
        color: var(--text);
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
      }

      .theme-toggle:hover {
        border-color: var(--primary);
        background: rgba(99, 102, 241, 0.1);
        transform: scale(1.05);
      }

      .ai-dropdown {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        border-radius: 12px;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text);
        cursor: pointer;
        transition: all var(--animation-speed) var(--animation-timing);
        backdrop-filter: var(--blur);
        min-width: 140px;
        appearance: none;
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: right 0.5rem center;
        background-size: 1rem;
        padding-right: 2.5rem;
      }

      .ai-dropdown:hover {
        border-color: var(--primary);
        background: rgba(99, 102, 241, 0.1);
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
      }

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

      .ai-dropdown option {
        background: var(--bg);
        color: var(--text);
        padding: 0.5rem;
      }

      [data-theme="dark"] .ai-dropdown {
        background: var(--glass-bg);
        border-color: var(--glass-border);
      }

      [data-theme="dark"] .ai-dropdown option {
        background: var(--dark);
        color: var(--text);
      }

      /* Main Content */
      .hero-section {
        text-align: center;
        padding: 4rem 0 2rem;
        animation: fadeInUp 1s ease-out 0.2s both;
      }

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

      .hero-title {
        font-size: 3rem;
        font-weight: 700;
        margin-bottom: 1rem;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.2;
      }

      .hero-subtitle {
        font-size: 1.2rem;
        color: var(--text-muted);
        margin-bottom: 2rem;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
      }

      .hero-actions {
        display: flex;
        gap: 1rem;
        justify-content: center;
        flex-wrap: wrap;
        margin-bottom: 3rem;
      }

      .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 1rem 2rem;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: white;
        text-decoration: none;
        border-radius: 12px;
        font-weight: 600;
        font-size: 1rem;
        transition: all var(--animation-speed) var(--animation-timing);
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
        border: none;
        cursor: pointer;
      }

      .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
      }

      .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 1rem 2rem;
        background: var(--glass-bg);
        color: var(--text);
        text-decoration: none;
        border-radius: 12px;
        font-weight: 600;
        font-size: 1rem;
        transition: all var(--animation-speed) var(--animation-timing);
        backdrop-filter: var(--blur);
        border: 1px solid var(--glass-border);
        cursor: pointer;
      }

      .btn-secondary:hover {
        background: var(--primary);
        color: white;
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
        border-color: var(--primary);
      }

      /* Content Sections */
      .content-section {
        margin-bottom: 4rem;
        animation: fadeInUp 1s ease-out 0.4s both;
      }

      .section-title {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 1.5rem;
        color: var(--text);
        position: relative;
        display: inline-block;
      }

      .section-title::after {
        content: "";
        position: absolute;
        bottom: -5px;
        left: 0;
        width: 60px;
        height: 3px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        border-radius: 2px;
      }

      .section-content {
        background: var(--glass-bg);
        backdrop-filter: var(--blur);
        border: 1px solid var(--glass-border);
        border-radius: 16px;
        padding: 2rem;
        box-shadow: 0 8px 32px var(--shadow);
        transition: all var(--animation-speed) var(--animation-timing);
      }

      .section-content:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 40px var(--shadow-lg);
      }

      /* Code blocks with Prism.js */
      pre {
        background: var(--dark);
        color: #e2e8f0;
        border-radius: 8px;
        padding: 1.5rem;
        margin: 1rem 0;
        overflow-x: auto;
        border: 1px solid var(--border);
        position: relative;
        font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
        font-size: 0.9rem;
        line-height: 1.5;
      }

      [data-theme="dark"] pre {
        background: var(--dark-light);
        color: #f1f5f9;
      }

      pre[class*="language-"] {
        margin: 1rem 0;
        padding: 1.5rem;
        padding-top: 2.5rem; /* Make room for copy button */
      }

      /* Copy button */
      .copy-btn {
        position: absolute;
        top: 0.5rem;
        right: 0.5rem;
        background: var(--primary);
        color: white;
        border: none;
        border-radius: 6px;
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
        font-weight: 500;
        cursor: pointer;
        transition: all var(--animation-speed) var(--animation-timing);
        opacity: 0.8;
        z-index: 10;
      }

      .copy-btn:hover {
        opacity: 1;
        transform: scale(1.05);
        background: var(--primary-dark);
      }

      .copy-btn.copied {
        background: var(--secondary);
        color: white;
      }

      .copy-btn::before {
        content: '📋';
        margin-right: 0.3rem;
      }

      .copy-btn.copied::before {
        content: '✅';
      }

      .token.comment,
      .token.prolog,
      .token.doctype,
      .token.cdata {
        color: #6c757d;
      }

      .token.punctuation {
        color: #e2e8f0;
      }

      .token.property,
      .token.tag,
      .token.constant,
      .token.symbol,
      .token.deleted {
        color: #e06c75;
      }

      .token.boolean,
      .token.number {
        color: #d19a66;
      }

      .token.selector,
      .token.attr-name,
      .token.string,
      .token.char,
      .token.builtin,
      .token.inserted {
        color: #98c379;
      }

      .token.operator,
      .token.entity,
      .token.url,
      .token.variable {
        color: #56b6c2;
      }

      .token.atrule,
      .token.attr-value,
      .token.function,
      .token.class-name {
        color: #61afef;
      }

      .token.keyword {
        color: #c678dd;
      }

      .token.regex,
      .token.important {
        color: #e06c75;
      }

      /* Line numbers */
      .line-numbers .line-numbers-rows {
        border-right: 1px solid #475569;
        padding-right: 0.5rem;
      }

      .line-numbers-rows > span {
        counter-increment: linenumber;
      }

      .line-numbers-rows > span::before {
        content: counter(linenumber);
        color: #64748b;
        display: block;
        text-align: right;
        padding-right: 0.5rem;
      }

      /* Override Prism themes for better integration */
      [data-theme="dark"] .token.comment,
      [data-theme="dark"] .token.prolog,
      [data-theme="dark"] .token.doctype,
      [data-theme="dark"] .token.cdata {
        color: #6c757d;
      }

      [data-theme="dark"] .line-numbers-rows > span::before {
        color: #64748b;
      }

      /* API Response examples */
      .response-example {
        background: var(--light);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 1rem;
        margin: 1rem 0;
        font-family: monospace;
        white-space: pre-wrap;
      }

      [data-theme="dark"] .response-example {
        background: var(--dark-light);
        color: #e2e8f0;
      }

      /* Feature grid */
      .features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        margin-top: 2rem;
      }

      .feature-card {
        background: var(--glass-bg);
        backdrop-filter: var(--blur);
        border: 1px solid var(--glass-border);
        border-radius: 12px;
        padding: 1.5rem;
        transition: all var(--animation-speed) var(--animation-timing);
        text-align: center;
      }

      .feature-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 12px 30px var(--shadow-lg);
        border-color: var(--primary-light);
      }

      .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
        display: block;
      }

      .feature-title {
        font-size: 1.2rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text);
      }

      .feature-description {
        color: var(--text-muted);
        font-size: 0.9rem;
        line-height: 1.5;
      }

      /* Status indicators */
      .status-indicator {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.5rem 1rem;
        border-radius: 20px;
        font-size: 0.9rem;
        font-weight: 500;
        margin: 0.5rem 0;
      }

      .status-success {
        background: rgba(16, 185, 129, 0.1);
        color: var(--secondary);
        border: 1px solid rgba(16, 185, 129, 0.2);
      }

      .status-error {
        background: rgba(239, 68, 68, 0.1);
        color: #ef4444;
        border: 1px solid rgba(239, 68, 68, 0.2);
      }

      /* Tables */
      .api-table {
        width: 100%;
        border-collapse: collapse;
        margin: 1rem 0;
        background: var(--glass-bg);
        backdrop-filter: var(--blur);
        border-radius: 8px;
        overflow: hidden;
        border: 1px solid var(--glass-border);
      }

      .api-table th,
      .api-table td {
        padding: 1rem;
        text-align: left;
        border-bottom: 1px solid var(--border);
      }

      .api-table th {
        background: var(--light-dark);
        font-weight: 600;
        color: var(--text);
      }

      .api-table td {
        color: var(--text-muted);
      }

      .api-table tr:last-child td {
        border-bottom: none;
      }

      [data-theme="dark"] .api-table th {
        background: var(--dark-light);
      }

      /* Responsive design */
      @media (max-width: 768px) {
        .container {
          padding: 1rem 0.5rem 2rem;
        }

        .nav-container {
          padding: 1rem;
        }

        .hero-title {
          font-size: 2rem;
        }

        .hero-subtitle {
          font-size: 1rem;
        }

        .hero-actions {
          flex-direction: column;
          align-items: center;
        }

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

        .section-content {
          padding: 1.5rem;
        }

        .api-table {
          font-size: 0.9rem;
        }

        .api-table th,
        .api-table td {
          padding: 0.75rem 0.5rem;
        }
      }