:root {
            --bg: #090d16;
            --surface: #0f172a;
            --surface-elevated: #1e293b;
            --surface-hover: #334155;
            --border: rgba(148, 163, 184, 0.12);
            --border-highlight: rgba(56, 189, 248, 0.3);
            --text: #f8fafc;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --primary: #38bdf8;
            --primary-glow: rgba(56, 189, 248, 0.25);
            --secondary: #818cf8;
            --accent: #c084fc;
            --success: #34d399;
            --warning: #fbbf24;
            --code-bg: #060911;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }

        body {
            font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 15% 10%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 85% 25%, rgba(129, 140, 248, 0.08) 0%, transparent 45%);
            background-attachment: fixed;
        }

        /* Top Navigation Bar */
        nav {
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(16px);
            background: rgba(9, 13, 22, 0.85);
            border-bottom: 1px solid var(--border);
            padding: 1rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            text-decoration: none;
            color: var(--text);
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.03em;
        }
        .nav-brand-img {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            box-shadow: 0 0 16px var(--primary-glow);
            object-fit: cover;
            display: block;
        }
        .hero-logo-container {
            margin-bottom: 1.75rem;
            display: flex;
            justify-content: center;
        }
        .hero-logo-card {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #ffffff;
            border-radius: 20px;
            padding: 1.25rem 2.5rem;
            box-shadow: 0 20px 50px rgba(56, 189, 248, 0.22), 0 0 0 1px rgba(255, 255, 255, 0.2);
            transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
        }
        .hero-logo-card:hover {
            transform: translateY(-4px) scale(1.01);
            box-shadow: 0 25px 65px rgba(56, 189, 248, 0.35);
        }
        .hero-brand-logo {
            height: 120px;
            max-width: 100%;
            width: auto;
            object-fit: contain;
            display: block;
        }
        .nav-logo-badge {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #000;
            font-weight: 900;
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 0.95rem;
            box-shadow: 0 0 16px var(--primary-glow);
        }
        .nav-links {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }
        .nav-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.2s;
        }
        .nav-links a:hover { color: var(--primary); }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .nav-developer-badge {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(30, 41, 59, 0.75);
            border: 1px solid var(--border);
            border-radius: 9999px;
            padding: 0.22rem 0.75rem 0.22rem 0.35rem;
            font-size: 0.75rem;
            transition: all 0.2s;
        }
        .nav-developer-badge:hover {
            border-color: var(--primary);
            box-shadow: 0 0 12px var(--primary-glow);
        }
        .dev-avatar {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #000;
            font-weight: 800;
            font-size: 0.7rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .dev-meta {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
            text-align: left;
        }
        .dev-name {
            font-weight: 700;
            color: #fff;
            font-size: 0.78rem;
        }
        .dev-role {
            color: var(--text-dim);
            font-size: 0.65rem;
        }
        .dev-socials {
            display: flex;
            align-items: center;
            gap: 0.45rem;
            margin-left: 0.35rem;
            padding-left: 0.5rem;
            border-left: 1px solid var(--border);
        }
        .dev-social-link {
            color: var(--text-muted);
            transition: color 0.2s, transform 0.15s;
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        .dev-social-link:hover {
            color: var(--primary);
            transform: scale(1.15);
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(52, 211, 153, 0.1);
            border: 1px solid rgba(52, 211, 153, 0.25);
            color: var(--success);
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 8px var(--success);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.15); }
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 1.5rem 6rem;
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 3.5rem 1rem 4.5rem;
            position: relative;
        }
        .pill-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            color: var(--primary);
            padding: 0.4rem 1.1rem;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.75rem;
        }
        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4.25rem);
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.04em;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #ffffff 30%, var(--primary) 70%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p.lead {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 780px;
            margin: 0 auto 2.5rem;
            line-height: 1.6;
        }
        .quick-start-bar {
            display: inline-flex;
            align-items: center;
            background: var(--surface);
            border: 1px solid var(--border);
            padding: 0.75rem 1.25rem;
            border-radius: 12px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
            gap: 1.25rem;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.95rem;
        }
        .quick-start-bar span.prompt { color: var(--text-dim); }
        .quick-start-bar span.cmd { color: var(--primary); font-weight: 600; }
        .copy-btn {
            background: var(--surface-elevated);
            color: var(--text-muted);
            border: 1px solid var(--border);
            padding: 0.4rem 0.8rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.75rem;
            font-weight: 600;
            transition: all 0.2s;
        }
        .copy-btn:hover {
            color: #fff;
            border-color: var(--primary);
            background: rgba(56, 189, 248, 0.15);
        }

        /* Section Titles */
        .section-header {
            margin-top: 4.5rem;
            margin-bottom: 2rem;
            text-align: left;
        }
        .section-tag {
            color: var(--primary);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 0.5rem;
            display: block;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: #fff;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-top: 0.5rem;
            max-width: 750px;
        }

        /* Architecture Flow Diagram */
        .flow-container {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2.5rem 2rem;
            position: relative;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
        }
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.25rem;
            position: relative;
        }
        .flow-card {
            background: var(--code-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1.25rem;
            transition: all 0.25s ease;
            position: relative;
        }
        .flow-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px var(--primary-glow);
        }
        .flow-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--surface-elevated);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .flow-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: #fff;
        }
        .flow-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .flow-card code {
            display: block;
            margin-top: 0.75rem;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
            color: var(--secondary);
            background: rgba(129, 140, 248, 0.08);
            padding: 0.3rem 0.5rem;
            border-radius: 4px;
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 1.5rem;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 1.75rem;
            transition: all 0.25s;
        }
        .feature-card:hover {
            border-color: var(--border-highlight);
            box-shadow: 0 12px 30px rgba(0,0,0,0.25);
        }
        .feature-icon-wrapper {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--surface-elevated);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            border: 1px solid var(--border);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: #fff;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1.2rem;
        }
        .feature-tag {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-size: 0.75rem;
            font-family: 'JetBrains Mono', monospace;
        }

        /* CLI Commands Section */
        .cli-container {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
        }
        .cli-tabs {
            display: flex;
            gap: 0.5rem;
            background: var(--code-bg);
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border);
            overflow-x: auto;
        }
        .cli-tab-btn {
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .cli-tab-btn:hover { color: var(--text); }
        .cli-tab-btn.active {
            background: var(--surface-elevated);
            color: var(--primary);
            border-color: var(--border);
        }
        .cli-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .cli-table th {
            text-align: left;
            padding: 1rem 1.5rem;
            color: var(--text-dim);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            background: rgba(255,255,255,0.02);
            border-bottom: 1px solid var(--border);
        }
        .cli-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }
        .cli-table tr:last-child td { border-bottom: none; }
        .cli-cmd {
            font-family: 'JetBrains Mono', monospace;
            color: var(--primary);
            font-weight: 600;
            background: rgba(56, 189, 248, 0.08);
            padding: 0.35rem 0.75rem;
            border-radius: 6px;
            display: inline-block;
        }
        .cli-desc { color: var(--text-muted); }

        /* Helpers & Functions Section */
        .helpers-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.25rem;
        }
        .helper-card {
            background: var(--code-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1.25rem;
            font-family: 'JetBrains Mono', monospace;
        }
        .helper-sig {
            color: var(--accent);
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 0.5rem;
        }
        .helper-desc {
            font-family: 'Plus Jakarta Sans', sans-serif;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .helper-card pre {
            margin-top: 0.75rem;
            background: rgba(255,255,255,0.03);
            padding: 0.6rem;
            border-radius: 6px;
            font-size: 0.8rem;
            color: var(--primary);
            overflow-x: auto;
        }

        /* Interactive Live API Playground */
        .playground-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 12px 40px rgba(0,0,0,0.3);
        }
        .endpoint-tester-row {
            display: flex;
            gap: 1rem;
            align-items: center;
            margin-bottom: 1.25rem;
            flex-wrap: wrap;
        }
        .select-endpoint {
            background: var(--code-bg);
            border: 1px solid var(--border);
            color: var(--text);
            padding: 0.65rem 1rem;
            border-radius: 8px;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.9rem;
            flex-grow: 1;
            cursor: pointer;
        }
        .send-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #000;
            font-weight: 700;
            border: none;
            padding: 0.65rem 1.5rem;
            border-radius: 8px;
            cursor: pointer;
            transition: opacity 0.2s, transform 0.1s;
        }
        .send-btn:hover { opacity: 0.9; transform: scale(1.02); }
        .response-terminal {
            background: var(--code-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 1.25rem;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            min-height: 180px;
            max-height: 350px;
            overflow-y: auto;
            color: #a5f3fc;
            white-space: pre-wrap;
        }

        /* Footer */
        footer {
            margin-top: 6rem;
            border-top: 1px solid var(--border);
            padding: 3rem 0;
            text-align: center;
            color: var(--text-dim);
            font-size: 0.875rem;
        }
        footer a { color: var(--primary); text-decoration: none; }
        footer a:hover { text-decoration: underline; }

        .footer-creator-card {
            max-width: 540px;
            margin: 0 auto 2.5rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 1.75rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            text-align: center;
        }
        .creator-badge-tag {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            margin-bottom: 1rem;
            display: inline-block;
            background: rgba(56, 189, 248, 0.08);
            border: 1px solid rgba(56, 189, 248, 0.25);
            padding: 0.3rem 0.75rem;
            border-radius: 9999px;
            font-weight: 600;
        }
        .creator-profile {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 1.25rem;
        }
        .creator-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #000;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 18px var(--primary-glow);
        }
        .creator-info {
            text-align: left;
        }
        .creator-name {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }
        .creator-title {
            font-size: 0.875rem;
            color: var(--primary);
            font-weight: 500;
        }
        .creator-links {
            display: flex;
            justify-content: center;
            gap: 0.85rem;
            flex-wrap: wrap;
        }
        .creator-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--surface-elevated);
            border: 1px solid var(--border);
            color: var(--text);
            text-decoration: none;
            padding: 0.55rem 1.15rem;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.2s;
        }
        .creator-btn:hover {
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(56, 189, 248, 0.25);
        }
        .creator-btn.linkedin-btn:hover {
            border-color: #0a66c2;
            box-shadow: 0 6px 20px rgba(10, 102, 194, 0.3);
        }

        @media (max-width: 768px) {
            nav { padding: 1rem; }
            .nav-links { display: none; }
            .hero h1 { font-size: 2.25rem; }
            .features-grid { grid-template-columns: 1fr; }
        }