:root {
            --primary-blue: #1e40af;
            --snow-white: #f0f9ff;
            --ice-blue: #dbeafe;
            --winter-teal: #0d9488;
            --accent-orange: #ea580c;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, var(--snow-white) 0%, var(--ice-blue) 100%);
            color: #1e293b;
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(45deg, var(--primary-blue), var(--winter-teal));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .hero-section {
            background: linear-gradient(rgba(30, 64, 175, 0.9), rgba(13, 148, 136, 0.8)), 
                        url('https://via.placeholder.com/1200x600') center/cover;
            color: white;
            padding: 4rem 0;
            border-radius: 0 0 2rem 2rem;
            margin-bottom: 3rem;
        }
        .content-section {
            background: white;
            border-radius: 1rem;
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
            border-left: 5px solid var(--accent-orange);
        }
        h1, h2, h3 {
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        h2 {
            font-size: 2rem;
            border-bottom: 3px solid var(--winter-teal);
            padding-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--winter-teal);
        }
        .keyword-highlight {
            background: linear-gradient(120deg, var(--ice-blue) 0%, transparent 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 0.3rem;
            font-weight: 600;
        }
        .feature-icon {
            font-size: 2rem;
            color: var(--accent-orange);
            margin-right: 1rem;
        }
        .game-image {
            border-radius: 1rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
            margin: 1.5rem 0;
        }
        .game-image:hover {
            transform: scale(1.02);
        }
        .nav-pills .nav-link.active {
            background: linear-gradient(45deg, var(--primary-blue), var(--winter-teal));
            font-weight: 600;
        }
        .table-of-contents {
            position: sticky;
            top: 2rem;
            background: white;
            border-radius: 1rem;
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        footer {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #1e3a8a 100%);
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 2rem 0;
                border-radius: 0 0 1rem 1rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .content-section {
                padding: 1.5rem;
            }
        }
        .paragraph-spacing {
            margin-bottom: 2rem;
        }
        .emoji-divider {
            text-align: center;
            font-size: 1.5rem;
            margin: 2rem 0;
            opacity: 0.7;
        }