:root {
            --primary-gold: #FFD700;
            --deep-blue: #1E3A8A;
            --vibrant-orange: #FF6B35;
            --rich-purple: #6A0DAD;
            --electric-teal: #00D4AA;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        .logo-brand {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2.5rem;
            background: linear-gradient(45deg, var(--vibrant-orange), var(--primary-gold));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
            font-weight: 900;
            letter-spacing: 1px;
        }
        .nav-custom {
            background: linear-gradient(90deg, var(--deep-blue) 0%, var(--rich-purple) 100%);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .nav-link {
            color: white !important;
            font-weight: 600;
            padding: 0.8rem 1.2rem !important;
            transition: all 0.3s ease;
            border-radius: 8px;
            margin: 0 5px;
        }
        .nav-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(30,58,138,0.85), rgba(106,13,173,0.85)), url('https://via.placeholder.com/1600x900') center/cover;
            color: white;
            padding: 100px 0;
            text-align: center;
            margin-bottom: 50px;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            padding: 40px;
            margin-bottom: 30px;
            transition: transform 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
        }
        h1, h2, h3 {
            color: var(--deep-blue);
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        h1 {
            font-size: 3rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        h2 {
            border-left: 5px solid var(--vibrant-orange);
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            color: var(--rich-purple);
            margin-top: 2rem;
        }
        .key-feature {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 25px;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .feature-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: var(--primary-gold);
        }
        .game-image {
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
            transition: transform 0.4s ease;
            margin: 25px 0;
            width: 100%;
            height: auto;
        }
        .game-image:hover {
            transform: scale(1.02);
        }
        .highlight-text {
            background: linear-gradient(120deg, var(--primary-gold) 0%, var(--primary-gold) 100%);
            background-position: 0 90%;
            background-repeat: no-repeat;
            background-size: 100% 0.3em;
            font-weight: 700;
            padding: 0.2em 0;
            color: var(--deep-blue);
        }
        .strategy-box {
            border-left: 4px solid var(--electric-teal);
            background-color: #f8f9fa;
            padding: 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        footer {
            background: linear-gradient(90deg, var(--deep-blue) 0%, #2D3748 100%);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 20px;
            margin-top: 30px;
            text-align: center;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .logo-brand {
                font-size: 1.8rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            .hero-section {
                padding: 60px 0;
            }
            .content-section {
                padding: 25px;
            }
        }
        .content-paragraph {
            margin-bottom: 1.8rem;
            text-align: justify;
        }
        .toc-item {
            padding: 12px 15px;
            margin: 8px 0;
            background: #f8f9fa;
            border-radius: 8px;
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
        }
        .toc-item:hover {
            background: #e9ecef;
            border-left: 3px solid var(--vibrant-orange);
            transform: translateX(5px);
        }