:root {
            --primary-color: #ff6b35;
            --secondary-color: #ffa726;
            --accent-color: #e64a19;
            --text-dark: #2e2e2e;
            --text-light: #666;
            --bg-light: #fff9f5;
            --border-radius: 12px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }
        .logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--primary-color);
            text-shadow: 2px 2px 0px var(--accent-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .nav-link {
            font-weight: 600;
            color: var(--text-dark);
            transition: all 0.3s ease;
            border-radius: var(--border-radius);
            padding: 8px 16px !important;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--primary-color);
            color: white;
        }
        h1, h2, h3 {
            color: var(--accent-color);
            margin-bottom: 1.2rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 107, 53, 0.1);
            border-left: 4px solid var(--primary-color);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .game-image {
            border-radius: var(--border-radius);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.3s ease;
            margin: 1.5rem 0;
            width: 100%;
            height: auto;
        }
        .game-image:hover {
            transform: scale(1.02);
        }
        .key-term {
            font-weight: bold;
            color: var(--accent-color);
        }
        .section-divider {
            height: 3px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            margin: 3rem 0;
            border-radius: 3px;
        }
        .table-of-contents {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            margin-bottom: 2rem;
        }
        .toc-item {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }
        .toc-item:hover {
            border-left-color: var(--primary-color);
            padding-left: 1.5rem;
        }
        .toc-item a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
        }
        .toc-item a:hover {
            color: var(--primary-color);
        }
        footer {
            background-color: var(--text-dark);
            color: white;
            padding: 2.5rem 0;
            margin-top: 4rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        .back-to-top:hover {
            background-color: var(--accent-color);
            transform: translateY(-5px);
            color: white;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.3rem;
            }
            .logo {
                font-size: 1.8rem;
            }
        }