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

        :root {
            --bg-base: #06080f;
            --bg-primary: #0b0f1a;
            --bg-secondary: #111827;
            --bg-tertiary: #1a2035;
            --bg-elevated: #1e2642;
            --bg-glass: rgba(17, 24, 39, 0.7);
            --border-color: rgba(99, 102, 241, 0.12);
            --border-subtle: rgba(255, 255, 255, 0.06);
            --text-primary: #f1f5f9;
            --text-secondary: #8892b0;
            --text-muted: #5a6480;
            --accent: #818cf8;
            --accent-bright: #a5b4fc;
            --accent-dim: #6366f1;
            --accent-glow: rgba(129, 140, 248, 0.12);
            --accent-glow-strong: rgba(129, 140, 248, 0.25);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-xs: 6px;
            --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-base);
            color: var(--text-primary);
            position: relative;
        }

        /* Ambient background glow */
        body::before {
            content: '';
            position: fixed;
            top: -40%;
            left: -20%;
            width: 60%;
            height: 60%;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        body::after {
            content: '';
            position: fixed;
            bottom: -30%;
            right: -15%;
            width: 50%;
            height: 50%;
            background: radial-gradient(circle, rgba(52, 211, 153, 0.04) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ─── Header ─── */
        .header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            height: 56px;
            background: var(--bg-glass);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 10;
        }

        .header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 5%;
            right: 5%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-glow-strong), transparent);
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 16px;
            text-decoration: none;
            color: inherit;
        }

        .logo {
            position: relative;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-dim), var(--accent));
            box-shadow: 0 4px 16px rgba(99, 102, 241, 0.25);
            flex-shrink: 0;
        }

        .logo svg {
            width: 20px;
            height: 20px;
            color: white;
        }

        .brand h1 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.4px;
            line-height: 1.2;
        }

        .brand p {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
            font-weight: 500;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header-link {
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            text-decoration: none;
            padding: 6px 14px;
            border-radius: var(--radius-xs);
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .header-link:hover {
            color: var(--text-primary);
            background: var(--bg-tertiary);
            border-color: var(--border-color);
        }

        /* ─── Content ─── */
        .content {
            position: relative;
            z-index: 1;
            max-width: 720px;
            margin: 0 auto;
            padding: 64px 24px 96px;
        }

        .content h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.8px;
            line-height: 1.2;
        }

        .content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 56px;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .content p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .updated-date {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 32px;
        }

        code {
            background: var(--bg-tertiary);
            padding: 2px 8px;
            border-radius: 5px;
            font-family: var(--font-mono);
            font-size: 12.5px;
            color: var(--accent-bright);
            border: 1px solid var(--border-subtle);
        }

        /* ─── Syntax Table ─── */
        .table-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin: 16px 0 32px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
        }

        .syntax-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 500px;
        }

        .syntax-table th {
            text-align: left;
            padding: 12px 16px;
            background: var(--bg-tertiary);
            color: var(--text-muted);
            font-weight: 700;
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .syntax-table td {
            padding: 11px 16px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

        .syntax-table tbody tr {
            transition: background-color var(--transition);
        }

        .syntax-table tbody tr:hover {
            background: var(--accent-glow);
        }

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

        /* ─── Examples List ─── */
        .examples-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 32px;
        }

        .examples-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .examples-list li:last-child {
            border-bottom: none;
        }

        /* ─── Steps List ─── */
        .steps-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 32px;
            counter-reset: step;
        }

        .steps-list li {
            counter-increment: step;
            padding: 16px 0 16px 48px;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            position: relative;
        }

        .steps-list li:last-child {
            border-bottom: none;
        }

        .steps-list li::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 16px;
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--accent-dim), var(--accent));
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
        }

        .steps-list li strong {
            color: var(--text-primary);
        }

        /* ─── FAQ ─── */
        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            padding: 24px 0;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ─── Scrollbar ─── */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: transparent;
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.08);
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.14);
        }

        /* ─── Reduced Motion ─── */
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* ─── Responsive ─── */
        @media (max-width: 1024px) {
            .content {
                padding: 48px 20px 72px;
            }

            .content h2 {
                font-size: 26px;
            }

            .header {
                padding: 0 16px;
            }
        }

        @media (max-width: 640px) {
            .content {
                padding: 36px 16px 64px;
            }

            .content h2 {
                font-size: 22px;
            }

            .content h3 {
                font-size: 16px;
                margin-top: 40px;
            }

            .syntax-table th,
            .syntax-table td {
                padding: 8px 10px;
                font-size: 13px;
            }

            .brand h1 {
                font-size: 14px;
            }

            .brand p {
                font-size: 10px;
            }
        }