:root {
            --primary-gold: #D4AF37;
            --secondary-green: #228B22;
            --accent-red: #B22222;
            --dark-blue: #1E3A8A;
            --light-cream: #F5F5DC;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(45deg, var(--primary-gold), var(--accent-red));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .hero-section {
            background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(180, 34, 34, 0.8)), url('https://via.placeholder.com/1600x900') center/cover;
            color: white;
            padding: 100px 0;
            text-align: center;
            margin-bottom: 3rem;
        }
        .content-section {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            padding: 2.5rem;
            margin-bottom: 2rem;
            transition: transform 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
        }
        h1, h2, h3 {
            color: var(--dark-blue);
            margin-bottom: 1.5rem;
            font-weight: 700;
        }
        h1 {
            font-size: 2.8rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }
        h2 {
            border-left: 5px solid var(--primary-gold);
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            color: var(--secondary-green);
            margin-top: 2rem;
        }
        .highlight-text {
            background: linear-gradient(120deg, var(--primary-gold) 0%, var(--primary-gold) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.3em;
            background-position: 0 88%;
            font-weight: 600;
        }
        .key-point {
            background: var(--light-cream);
            border-left: 4px solid var(--primary-gold);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-icon {
            font-size: 2rem;
            color: var(--primary-gold);
            margin-right: 1rem;
        }
        .image-container {
            position: relative;
            overflow: hidden;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .image-container img {
            width: 100%;
            height: auto;
            transition: transform 0.5s ease;
        }
        .image-container:hover img {
            transform: scale(1.05);
        }
        .image-caption {
            background: rgba(0,0,0,0.7);
            color: white;
            padding: 1rem;
            text-align: center;
            font-style: italic;
        }
        .table-of-contents {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border-radius: 12px;
            padding: 2rem;
            margin: 2rem 0;
        }
        .table-of-contents h3 {
            color: white;
            border-left: none;
            padding-left: 0;
        }
        .table-of-contents ul {
            list-style: 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-gold);
        }
        .table-of-contents a {
            color: white;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .table-of-contents a:hover {
            color: var(--primary-gold);
        }
        .fact-box {
            background: linear-gradient(45deg, var(--secondary-green), var(--dark-blue));
            color: white;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
            text-align: center;
        }
        .footer {
            background: var(--dark-blue);
            color: white;
            padding: 3rem 0;
            margin-top: 4rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            .content-section {
                padding: 1.5rem;
            }
        }
        .nav-link {
            font-weight: 600;
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--primary-gold) !important;
        }