:root {
            --primary-color: #ff6b35;
            --secondary-color: #f7931e;
            --accent-color: #ffd166;
            --dark-color: #2d3047;
            --light-color: #f8f9fa;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        .logo-text {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            -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;
        }
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
        }
        .nav-link {
            font-weight: 600;
            color: var(--dark-color) !important;
            transition: all 0.3s ease;
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
            transform: translateY(-2px);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: var(--primary-color);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 100px 0;
            text-align: center;
            margin-bottom: 50px;
            border-radius: 0 0 30px 30px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.2);
        }
        .hero-subtitle {
            font-size: 1.4rem;
            font-weight: 300;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            padding: 40px;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        h1, h2, h3 {
            color: var(--dark-color);
            margin-bottom: 25px;
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 15px;
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--secondary-color);
            padding-left: 15px;
            margin-top: 40px;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-top: 30px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: rgba(255, 107, 53, 0.1);
            border-left: 4px solid var(--primary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .key-term {
            font-weight: 700;
            color: var(--primary-color);
        }
        .game-image {
            width: 100%;
            border-radius: 12px;
            margin: 25px 0;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .game-image:hover {
            transform: scale(1.02);
        }
        .feature-list {
            list-style-type: none;
            padding-left: 0;
        }
        .feature-list li {
            padding: 12px 0;
            border-bottom: 1px solid #eee;
            position: relative;
            padding-left: 35px;
        }
        .feature-list li:before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 12px;
            color: var(--primary-color);
            font-weight: bold;
            font-size: 1.2rem;
        }
        .table-of-contents {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 40px;
            border-left: 5px solid var(--primary-color);
        }
        .toc-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark-color);
        }
        .toc-list {
            list-style-type: none;
            padding-left: 0;
        }
        .toc-list li {
            margin-bottom: 12px;
            padding-left: 20px;
            position: relative;
        }
        .toc-list li:before {
            content: '▶';
            position: absolute;
            left: 0;
            color: var(--primary-color);
            font-size: 0.8rem;
        }
        .toc-list a {
            color: var(--dark-color);
            text-decoration: none;
            transition: color 0.3s ease;
            font-weight: 500;
        }
        .toc-list a:hover {
            color: var(--primary-color);
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        .footer-heading {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--accent-color);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 30px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .btn-primary-custom {
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            border: none;
            color: white;
            padding: 12px 25px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
            color: white;
        }
        .icon-box {
            text-align: center;
            padding: 25px 15px;
            border-radius: 12px;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .icon-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .icon-box i {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            margin-bottom: 10px;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--dark-color);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .content-section {
                padding: 25px;
            }
        }