:root {
            --primary-emerald: #2ecc71;
            --secondary-gold: #f39c12;
            --accent-purple: #9b59b6;
            --dark-bg: #1a1a2e;
            --light-text: #ecf0f1;
            --medium-bg: #16213e;
        }
        body {
            background: linear-gradient(135deg, var(--dark-bg) 0%, var(--medium-bg) 100%);
            color: var(--light-text);
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
        }
        .navbar-brand {
            color: var(--primary-emerald) !important;
            font-weight: 800;
            font-size: 1.8rem;
            text-shadow: 0 0 10px rgba(46, 204, 113, 0.5);
        }
        .nav-link {
            color: var(--light-text) !important;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        .nav-link:hover {
            color: var(--primary-emerald) !important;
            transform: translateY(-2px);
        }
        h1, h2, h3, h4, h5 {
            color: var(--secondary-gold);
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            margin: 2rem 0;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        h2 {
            font-size: 2.2rem;
            border-left: 5px solid var(--accent-purple);
            padding-left: 1rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--primary-emerald);
            margin-top: 2.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .content-section {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 15px;
            padding: 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
            transition: transform 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
        }
        .game-feature {
            background: rgba(155, 89, 182, 0.1);
            border-left: 4px solid var(--accent-purple);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .highlight {
            color: var(--secondary-gold);
            font-weight: 700;
        }
        .emerald-accent {
            color: var(--primary-emerald);
            font-weight: 700;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.5);
            margin: 1.5rem 0;
            transition: transform 0.3s ease;
        }
        img:hover {
            transform: scale(1.02);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #bdc3c7;
            margin-top: -0.5rem;
            margin-bottom: 2rem;
        }
        .table-of-contents {
            background: rgba(52, 152, 219, 0.1);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .toc-list {
            list-style-type: none;
            padding-left: 0;
        }
        .toc-list li {
            margin-bottom: 0.8rem;
            padding-left: 1.5rem;
            position: relative;
        }
        .toc-list li:before {
            content: "▸";
            color: var(--primary-emerald);
            position: absolute;
            left: 0;
        }
        .toc-list a {
            color: var(--light-text);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .toc-list a:hover {
            color: var(--primary-emerald);
        }
        footer {
            background: rgba(0, 0, 0, 0.7);
            padding: 2rem 0;
            margin-top: 3rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .back-to-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: var(--primary-emerald);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        .back-to-top:hover {
            background: var(--secondary-gold);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .content-section {
                padding: 1.5rem;
            }
        }