:root {
            --primary-color: #FF6B35;
            --secondary-color: #F7931E;
            --accent-color: #8B4513;
            --text-dark: #2C1810;
            --text-light: #5D4037;
            --bg-light: #FFF3E0;
            --bg-dark: #FBE9E7;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-dark) 100%);
            background-attachment: fixed;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
            letter-spacing: -0.5px;
        }
        .nav-link {
            font-weight: 600;
            color: var(--text-dark) !important;
            transition: all 0.3s ease;
            border-bottom: 2px solid transparent;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
            border-bottom: 2px solid var(--primary-color);
        }
        h1, h2, h3 {
            color: var(--accent-color);
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 4px solid var(--secondary-color);
            padding-bottom: 0.5rem;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--primary-color);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin-top: 2.5rem;
        }
        p {
            margin-bottom: 1.8rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #FFE0B2, #FFCCBC);
            border-left: 5px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        .game-feature {
            background: white;
            padding: 1.5rem;
            border-radius: 12px;
            margin-bottom: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-top: 4px solid var(--secondary-color);
        }
        .game-feature:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin: 2rem 0;
            transition: transform 0.3s ease;
        }
        img:hover {
            transform: scale(1.02);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            margin-top: -1rem;
            margin-bottom: 2rem;
        }
        .key-term {
            font-weight: 700;
            color: var(--primary-color);
            background-color: rgba(255, 107, 53, 0.1);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }
        footer {
            background: linear-gradient(135deg, var(--accent-color), #5D4037);
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: 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 10px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        .back-to-top:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
        }