:root {
            --primary-jungle: #2E8B57;
            --secondary-accent: #FF6B35;
            --dark-canopy: #1A535C;
            --light-foliage: #4ECDC4;
            --earth-tone: #8B4513;
            --highlight-gold: #FFD700;
        }
        body {
            font-family: 'Segoe UI', system-ui, 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;
            background: linear-gradient(45deg, var(--primary-jungle), var(--light-foliage));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .hero-section {
            background: linear-gradient(rgba(42, 67, 56, 0.8), rgba(26, 83, 92, 0.9)), url('https://via.placeholder.com/1600x900') center/cover no-repeat;
            color: white;
            padding: 5rem 0;
            border-radius: 0 0 30px 30px;
            margin-bottom: 3rem;
        }
        .content-card {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            padding: 2rem;
            margin-bottom: 2rem;
            border-left: 5px solid var(--primary-jungle);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
        }
        h1, h2, h3 {
            color: var(--dark-canopy);
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
        }
        h2 {
            font-size: 2.2rem;
            border-bottom: 3px solid var(--secondary-accent);
            padding-bottom: 0.5rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-jungle);
            margin-top: 2rem;
        }
        .key-term {
            background: linear-gradient(120deg, var(--light-foliage) 0%, var(--light-foliage) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 700;
            padding: 0.1rem 0.2rem;
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--secondary-accent);
            margin-bottom: 1rem;
            display: inline-block;
        }
        .game-image {
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            margin: 2rem 0;
            transition: transform 0.4s ease;
            width: 100%;
            height: auto;
        }
        .game-image:hover {
            transform: scale(1.02);
        }
        .nav-pills .nav-link.active {
            background-color: var(--primary-jungle);
            font-weight: 600;
        }
        .nav-pills .nav-link {
            color: var(--dark-canopy);
            font-weight: 500;
            margin: 0.2rem 0;
            border-radius: 8px;
        }
        .table-of-contents {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 2rem;
            border-left: 4px solid var(--secondary-accent);
        }
        .table-of-contents ul {
            list-style-type: none;
            padding-left: 0;
        }
        .table-of-contents li {
            margin-bottom: 0.8rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .table-of-contents li:before {
            content: "▸";
            position: absolute;
            left: 0;
            color: var(--primary-jungle);
            font-weight: bold;
        }
        .table-of-contents a {
            text-decoration: none;
            color: var(--dark-canopy);
            transition: color 0.2s ease;
        }
        .table-of-contents a:hover {
            color: var(--secondary-accent);
        }
        blockquote {
            border-left: 4px solid var(--highlight-gold);
            background: #fff9e6;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        .strategy-tip {
            background: #e8f4f8;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-left: 4px solid var(--light-foliage);
        }
        footer {
            background: var(--dark-canopy);
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
            border-radius: 30px 30px 0 0;
        }
        .highlight-box {
            background: linear-gradient(135deg, var(--primary-jungle), var(--dark-canopy));
            color: white;
            padding: 2rem;
            border-radius: 12px;
            margin: 2rem 0;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .hero-section {
                padding: 3rem 0;
                border-radius: 0 0 20px 20px;
            }
        }