:root {
            --primary-gold: #D4AF37;
            --secondary-sand: #F0E68C;
            --accent-maroon: #800000;
            --dark-brown: #8B4513;
            --light-cream: #FFFDD0;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, var(--light-cream) 0%, #ffffff 100%);
            color: #333;
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-gold) !important;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .nav-link {
            font-weight: 600;
            transition: all 0.3s ease;
            color: var(--dark-brown) !important;
        }
        .nav-link:hover {
            color: var(--primary-gold) !important;
            transform: translateY(-2px);
        }
        h1, h2, h3 {
            color: var(--accent-maroon);
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        h1 {
            border-bottom: 3px solid var(--primary-gold);
            padding-bottom: 0.5rem;
            font-size: 2.5rem;
        }
        h2 {
            border-left: 5px solid var(--primary-gold);
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            color: var(--dark-brown);
            margin-top: 2rem;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        .feature-icon {
            color: var(--primary-gold);
            font-size: 1.5rem;
            margin-right: 10px;
        }
        .img-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            margin: 2rem 0;
            transition: transform 0.3s ease;
        }
        .img-container:hover {
            transform: scale(1.02);
        }
        .highlight {
            background: linear-gradient(120deg, var(--secondary-sand) 0%, var(--secondary-sand) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 700;
            padding: 0.2rem 0.1rem;
        }
        .key-point {
            background-color: rgba(212, 175, 55, 0.1);
            border-left: 4px solid var(--primary-gold);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        footer {
            background: linear-gradient(135deg, var(--dark-brown) 0%, #000 100%);
            color: white;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary-gold);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 10px rgba(0,0,0,0.3);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        .back-to-top:hover {
            transform: translateY(-5px);
            background: var(--accent-maroon);
            color: white;
        }
        .table-of-contents {
            background: rgba(212, 175, 55, 0.1);
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        .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-gold);
            font-weight: bold;
            position: absolute;
            left: 0;
        }
        .toc-list a {
            color: var(--dark-brown);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .toc-list a:hover {
            color: var(--primary-gold);
            padding-left: 5px;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            .content-section {
                padding: 1.5rem;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
        }