:root {
            --primary-color: #ff6b35;
            --secondary-color: #1e3a8a;
            --accent-color: #f59e0b;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f8fafc;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .main-container {
            background: white;
            border-radius: 20px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            overflow: hidden;
            margin-top: 2rem;
            margin-bottom: 2rem;
        }
        .logo-brand {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-color);
            text-shadow: 3px 3px 0px var(--secondary-color);
            letter-spacing: 2px;
        }
        .nav-link {
            font-weight: 600;
            color: var(--text-dark) !important;
            transition: all 0.3s ease;
            border-bottom: 3px solid transparent;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
            border-bottom: 3px solid var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(30, 58, 138, 0.9)), url('https://via.placeholder.com/1600x900') center/cover no-repeat;
            color: white;
            padding: 5rem 0;
            text-align: center;
        }
        .section-title {
            color: var(--secondary-color);
            font-weight: 800;
            margin-bottom: 2rem;
            position: relative;
            padding-bottom: 1rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 5px;
            background: var(--primary-color);
            border-radius: 10px;
        }
        .content-card {
            background: var(--bg-light);
            border-radius: 15px;
            padding: 2rem;
            margin-bottom: 2rem;
            border: none;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }
        .content-card:hover {
            transform: translateY(-5px);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .game-image {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            margin: 2rem 0;
        }
        .highlight-text {
            background: linear-gradient(120deg, var(--accent-color) 0%, var(--accent-color) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 700;
        }
        .key-point {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid var(--primary-color);
            margin: 1.5rem 0;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }
        footer {
            background: var(--secondary-color);
            color: white;
            padding: 3rem 0 2rem;
        }
        @media (max-width: 768px) {
            .logo-brand {
                font-size: 1.8rem;
            }
            .hero-section {
                padding: 3rem 0;
            }
            .content-card {
                padding: 1.5rem;
            }
        }