:root {
            --primary-purple: #6a0dad;
            --dark-purple: #4b0082;
            --ghost-green: #00ff9d;
            --spooky-orange: #ff6b35;
            --dark-bg: #1a1a2e;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, var(--dark-bg) 0%, #16213e 100%);
            color: #e0e0e0;
            line-height: 1.7;
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(45deg, var(--ghost-green), var(--spooky-orange));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 10px rgba(0, 255, 157, 0.3);
        }
        .nav-link {
            color: #b8b8b8 !important;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-link:hover {
            color: var(--ghost-green) !important;
            transform: translateY(-2px);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--ghost-green);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 26, 46, 0.9), rgba(22, 33, 62, 0.9)), 
                        url('https://via.placeholder.com/1200x600') center/cover;
            padding: 100px 0;
            text-align: center;
            border-bottom: 3px solid var(--primary-purple);
        }
        h1 {
            font-size: 3.5rem;
            font-weight: 800;
            background: linear-gradient(45deg, var(--ghost-green), var(--spooky-orange));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 1.5rem;
            text-shadow: 0 4px 15px rgba(0, 255, 157, 0.2);
        }
        h2 {
            color: var(--ghost-green);
            font-weight: 700;
            border-left: 5px solid var(--spooky-orange);
            padding-left: 15px;
            margin: 2.5rem 0 1.5rem 0;
        }
        h3 {
            color: var(--spooky-orange);
            font-weight: 600;
            margin: 2rem 0 1rem 0;
        }
        .content-section {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 2.5rem;
            margin: 2rem 0;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .highlight-box {
            background: linear-gradient(135deg, var(--primary-purple), var(--dark-purple));
            border-left: 5px solid var(--ghost-green);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .game-feature {
            background: rgba(0, 255, 157, 0.1);
            border: 1px solid rgba(0, 255, 157, 0.3);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 1rem 0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .game-feature:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 255, 157, 0.2);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--ghost-green);
            margin-bottom: 1rem;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
            transition: transform 0.3s ease;
            margin: 1.5rem 0;
        }
        img:hover {
            transform: scale(1.02);
        }
        .table-of-contents {
            background: rgba(106, 13, 173, 0.1);
            border: 1px solid var(--primary-purple);
            border-radius: 10px;
            padding: 2rem;
            margin: 2rem 0;
        }
        .toc-list {
            list-style: none;
            padding: 0;
        }
        .toc-list li {
            margin: 0.8rem 0;
            padding-left: 1.5rem;
            position: relative;
        }
        .toc-list li::before {
            content: '▶';
            color: var(--ghost-green);
            position: absolute;
            left: 0;
        }
        .toc-list a {
            color: #e0e0e0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .toc-list a:hover {
            color: var(--ghost-green);
        }
        footer {
            background: linear-gradient(135deg, var(--dark-purple), #2d0033);
            color: #b8b8b8;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            border-top: 3px solid var(--spooky-orange);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 60px 0;
            }
            .content-section {
                padding: 1.5rem;
            }
        }
        .keyword-highlight {
            background: rgba(255, 107, 53, 0.2);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .quote-box {
            border-left: 4px solid var(--spooky-orange);
            padding-left: 1.5rem;
            margin: 1.5rem 0;
            font-style: italic;
            color: #cccccc;
        }