:root {
            --primary-color: #ff6b6b;
            --secondary-color: #4ecdc4;
            --accent-color: #ffd166;
            --dark-color: #1a535c;
            --light-color: #f7fff7;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--dark-color) !important;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .nav-link {
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 83, 92, 0.8), rgba(26, 83, 92, 0.9)), url('https://via.placeholder.com/1600x900') center/cover no-repeat;
            color: white;
            padding: 100px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title {
            color: var(--dark-color);
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
            margin: 40px 0 25px;
            font-weight: 700;
        }
        .content-card {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            padding: 30px;
            margin-bottom: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
        }
        .content-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
        }
        .highlight {
            background-color: rgba(255, 214, 102, 0.2);
            padding: 15px;
            border-radius: 10px;
            border-left: 4px solid var(--accent-color);
            margin: 20px 0;
        }
        .game-feature {
            text-align: center;
            padding: 20px;
            border-radius: 10px;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .game-feature:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        .img-fluid {
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .img-fluid:hover {
            transform: scale(1.02);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 20px;
            text-align: center;
        }
        .keyword-highlight {
            font-weight: 700;
            color: var(--dark-color);
            background-color: rgba(78, 205, 196, 0.2);
            padding: 2px 5px;
            border-radius: 3px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            .content-card {
                padding: 20px;
            }
        }