:root {
            --primary-color: #2E8B57;
            --secondary-color: #FFD700;
            --accent-color: #8B4513;
            --text-color: #2C3E50;
            --light-bg: #F8F9FA;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
        }
        .nav-link {
            font-weight: 500;
            transition: all 0.3s ease;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
            transform: translateY(-2px);
        }
        h1, h2, h3 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        h1 {
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
            font-weight: 700;
        }
        h2 {
            border-left: 5px solid var(--accent-color);
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            color: var(--accent-color);
            margin-top: 2rem;
        }
        .lead {
            font-size: 1.25rem;
            color: #555;
        }
        .content-section {
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        .img-fluid {
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
            margin: 1.5rem 0;
        }
        .img-fluid:hover {
            transform: scale(1.02);
        }
        .highlight-box {
            background: linear-gradient(135deg, #f8fffe 0%, #f0fff4 100%);
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-list {
            list-style-type: none;
            padding-left: 0;
        }
        .feature-list li {
            padding: 0.5rem 0;
            padding-left: 2rem;
            position: relative;
        }
        .feature-list li:before {
            content: "✓";
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: 0;
        }
        .table-of-contents {
            background-color: #f8f9fa;
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        .table-of-contents ul {
            padding-left: 1.5rem;
        }
        .table-of-contents a {
            color: var(--text-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .table-of-contents a:hover {
            color: var(--primary-color);
        }
        footer {
            background-color: var(--text-color);
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .copyright {
            background-color: #1a252f;
            color: #aaa;
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-primary:hover {
            background-color: #267a4a;
            border-color: #267a4a;
            transform: translateY(-2px);
        }
        .icon-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background-color: rgba(46, 139, 87, 0.1);
            border-radius: 50%;
            margin-right: 10px;
        }
        @media (max-width: 768px) {
            .content-section {
                padding: 1.5rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }