:root {
            --primary-blue: #1a5276;
            --secondary-teal: #17a2b8;
            --accent-orange: #e67e22;
            --deep-purple: #6c5ce7;
            --light-bg: #f8f9fa;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #e6f7ff 0%, #f0f8ff 100%);
        }
        .logo-text {
            font-family: 'Arial Rounded MT Bold', 'Arial', sans-serif;
            font-weight: 800;
            font-size: 2.2rem;
            background: linear-gradient(45deg, var(--primary-blue), var(--secondary-teal));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .nav-custom {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            border-bottom: 3px solid var(--secondary-teal);
        }
        .nav-link {
            font-weight: 600;
            color: var(--primary-blue) !important;
            transition: all 0.3s ease;
            border-radius: 5px;
            margin: 0 5px;
        }
        .nav-link:hover {
            background-color: var(--secondary-teal);
            color: white !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 82, 118, 0.85), rgba(23, 162, 184, 0.8)), url('https://via.placeholder.com/1600x900') center/cover no-repeat;
            color: white;
            padding: 100px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            padding: 40px;
            margin-bottom: 30px;
            transition: transform 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
        }
        h1, h2, h3 {
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
            border-bottom: 3px solid var(--accent-orange);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2rem;
            border-left: 5px solid var(--secondary-teal);
            padding-left: 15px;
            margin-top: 40px;
        }
        h3 {
            font-size: 1.5rem;
            color: var(--deep-purple);
            margin-top: 30px;
        }
        .highlight {
            background: linear-gradient(120deg, #a8e6cf 0%, #dcedc1 100%);
            padding: 20px;
            border-radius: 10px;
            border-left: 5px solid var(--accent-orange);
            margin: 25px 0;
        }
        .game-feature {
            background: #f0f7ff;
            padding: 15px;
            border-radius: 8px;
            margin: 15px 0;
            border-left: 4px solid var(--secondary-teal);
        }
        .img-fluid {
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
            margin: 20px 0;
        }
        .img-fluid:hover {
            transform: scale(1.02);
        }
        .fact-box {
            background: #e8f4f8;
            padding: 20px;
            border-radius: 10px;
            margin: 20px 0;
            border: 2px dashed var(--secondary-teal);
        }
        footer {
            background: var(--primary-blue);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--accent-orange);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            z-index: 1000;
            transition: all 0.3s ease;
        }
        .back-to-top:hover {
            transform: translateY(-5px);
            background: var(--secondary-teal);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .content-section {
                padding: 25px;
            }
        }