:root {
            --navy: #1a1d3a;
            --deep-purple: #2d2550;
            --rich-purple: #5b4b8a;
            --coral: #ff6b6b;
            --coral-pink: #ff8a9b;
            --soft-yellow: #ffe66d;
            --white: #ffffff;
            --light-gray: #f5f6fa;
            --medium-gray: #a0a4b8;
            --gradient-primary: linear-gradient(135deg, #1a1d3a 0%, #2d2550 100%);
            --gradient-accent: linear-gradient(135deg, #ff6b6b 0%, #ff8a9b 100%);
            --gradient-purple: linear-gradient(135deg, #5b4b8a 0%, #7b68aa 100%);
        }

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

        body {
            font-family: 'DM Sans', sans-serif;
            color: var(--navy);
            line-height: 1.6;
            background: var(--white);
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            padding: 1.5rem 5%;
            background: rgba(26, 29, 58, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }

        .logo {
            font-family: 'Playfair Display', serif;
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--white);
            letter-spacing: -0.5px;
            text-decoration: none;
        }

        .logo span {
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }

        .nav-links a {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--coral);
        }

        /* Main Container */
        .docs-container {
            display: grid;
            grid-template-columns: 280px 1fr;
            max-width: 1400px;
            margin: 0 auto;
            padding-top: 100px;
            gap: 4rem;
            padding-left: 5%;
            padding-right: 5%;
            min-height: 100vh;
        }

        /* Sidebar Navigation */
        .sidebar {
            position: sticky;
            top: 120px;
            max-height: calc(100vh - 140px);
            overflow-y: auto;
            padding: 2rem 1rem 2rem 0;
        }

        /* Sidebar Scrollbar Styling */
        .sidebar::-webkit-scrollbar {
            width: 6px;
        }

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

        .sidebar::-webkit-scrollbar-thumb {
            background: var(--medium-gray);
            border-radius: 3px;
        }

        .sidebar::-webkit-scrollbar-thumb:hover {
            background: var(--rich-purple);
        }

        .sidebar-section {
            margin-bottom: 2rem;
        }

        .sidebar-section h3 {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--medium-gray);
            margin-bottom: 1rem;
            font-weight: 700;
        }

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

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

        .sidebar-links a {
            color: var(--navy);
            text-decoration: none;
            display: block;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .sidebar-links a:hover,
        .sidebar-links a.active {
            background: var(--light-gray);
            color: var(--coral);
        }

        /* Main Content */
        .content {
            padding: 2rem 0 4rem;
            max-width: 800px;
        }

        .content h1 {
            font-family: 'Playfair Display', serif;
            font-size: 3rem;
            font-weight: 900;
            color: var(--navy);
            margin-bottom: 1rem;
        }

        .content h2 {
            font-family: 'Playfair Display', serif;
            font-size: 2rem;
            font-weight: 900;
            color: var(--navy);
            margin-top: 3rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
        }

        .content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--navy);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        .content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--rich-purple);
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
        }

        .content p {
            font-size: 1.05rem;
            color: var(--navy);
            margin-bottom: 1.25rem;
            line-height: 1.8;
        }

        .lead {
            font-size: 1.2rem;
            color: var(--medium-gray);
            margin-bottom: 2rem;
        }

        /* Code Blocks */
        code {
            background: var(--light-gray);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-family: 'Courier New', monospace;
            font-size: 0.9em;
            color: var(--coral);
        }

        pre {
            background: var(--navy);
            color: var(--white);
            padding: 1.5rem;
            border-radius: 8px;
            overflow-x: auto;
            margin: 1.5rem 0;
            line-height: 1.6;
        }

        pre code {
            background: none;
            color: var(--white);
            padding: 0;
        }

        /* Lists */
        .content ul,
        .content ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }

        .content li {
            margin-bottom: 0.75rem;
            line-height: 1.8;
        }

        /* Info Boxes */
        .info-box {
            background: var(--light-gray);
            border-left: 4px solid var(--rich-purple);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }

        .info-box.warning {
            border-left-color: var(--soft-yellow);
            background: #fffbf0;
        }

        .info-box.danger {
            border-left-color: var(--coral);
            background: #fff5f5;
        }

        .info-box.success {
            border-left-color: #28ca42;
            background: #f0fdf4;
        }

        .info-box h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .info-box p:last-child {
            margin-bottom: 0;
        }

        /* Step Cards */
        .step-card {
            background: var(--white);
            border: 2px solid var(--light-gray);
            border-radius: 12px;
            padding: 2rem;
            margin: 2rem 0;
            transition: all 0.3s ease;
        }

        .step-card:hover {
            border-color: var(--rich-purple);
            box-shadow: 0 4px 20px rgba(91, 75, 138, 0.1);
        }

        .step-number {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: var(--gradient-accent);
            color: var(--white);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .step-card h3 {
            margin-top: 0;
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
            margin: 2rem 0;
        }

        .feature-item {
            background: var(--light-gray);
            padding: 2rem;
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        .feature-item:hover {
            background: var(--white);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

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

        .feature-item h4 {
            margin-top: 0;
        }

        /* Mode Cards */
        .mode-card {
            background: var(--gradient-primary);
            color: var(--white);
            padding: 2.5rem;
            border-radius: 16px;
            margin: 2rem 0;
        }

        .mode-card h3 {
            color: var(--white);
            margin-top: 0;
        }

        .mode-card p {
            color: rgba(255, 255, 255, 0.9);
        }

        .mode-badge {
            display: inline-block;
            background: var(--gradient-accent);
            color: var(--white);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }

        /* Table */
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            background: var(--white);
            border-radius: 8px;
            overflow: hidden;
        }

        th {
            background: var(--navy);
            color: var(--white);
            padding: 1rem;
            text-align: left;
            font-weight: 700;
        }

        td {
            padding: 1rem;
            border-bottom: 1px solid var(--light-gray);
        }

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

        tr:hover {
            background: var(--light-gray);
        }

        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 50px;
            height: 50px;
            background: var(--gradient-accent);
            color: var(--white);
            border: none;
            border-radius: 50%;
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(255, 107, 107, 0.3);
            z-index: 999;
        }

        .back-to-top.visible {
            opacity: 1;
        }

        .back-to-top:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 30px rgba(255, 107, 107, 0.4);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .docs-container {
                grid-template-columns: 1fr;
            }

            .sidebar {
                position: relative;
                top: 0;
                border-right: none;
                border-bottom: 2px solid var(--light-gray);
                padding-bottom: 2rem;
            }

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

        @media (max-width: 768px) {
            .content h1 {
                font-size: 2rem;
            }

            .content h2 {
                font-size: 1.5rem;
            }

            .nav-links {
                display: none;
            }
        }

        /* Scroll Indicator */
        .scroll-indicator {
            position: fixed;
            top: 80px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--light-gray);
            z-index: 999;
        }

        .scroll-progress {
            height: 100%;
            background: var(--gradient-accent);
            width: 0%;
            transition: width 0.1s ease;
        }