:root {
            --primary-color: #4a148c;
            --secondary-color: #ff6f00;
            --accent-color: #ffab00;
            --text-color: #333333;
            --light-bg: #f8f9fa;
            --dark-bg: #2c3e50;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--accent-color) !important;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .content-wrapper {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            margin-top: 20px;
            padding: 30px;
        }
        h1 {
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 15px;
            margin-bottom: 25px;
            font-weight: 700;
        }
        h2 {
            color: var(--secondary-color);
            margin-top: 30px;
            margin-bottom: 15px;
            font-weight: 600;
        }
        h3 {
            color: var(--dark-bg);
            margin-top: 25px;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .lead {
            font-size: 1.2rem;
            color: #555;
            margin-bottom: 30px;
        }
        .highlight {
            background-color: rgba(255, 111, 0, 0.1);
            border-left: 4px solid var(--secondary-color);
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .feature-icon {
            color: var(--secondary-color);
            margin-right: 10px;
            font-size: 1.2rem;
        }
        .img-container {
            text-align: center;
            margin: 30px 0;
        }
        .img-fluid {
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .img-fluid:hover {
            transform: scale(1.02);
        }
        .table-of-contents {
            background-color: var(--light-bg);
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 30px;
        }
        .table-of-contents h3 {
            color: var(--primary-color);
            margin-top: 0;
        }
        .table-of-contents ul {
            padding-left: 20px;
        }
        .table-of-contents li {
            margin-bottom: 8px;
        }
        .table-of-contents a {
            color: var(--text-color);
            text-decoration: none;
            transition: color 0.3s;
        }
        .table-of-contents a:hover {
            color: var(--secondary-color);
        }
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 30px 0;
            margin-top: 50px;
            border-top: 5px solid var(--accent-color);
        }
        .nav-link {
            color: var(--primary-color) !important;
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--secondary-color) !important;
        }
        .navbar {
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .content-section {
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .content-wrapper {
                padding: 20px 15px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        .strategy-card {
            border: 1px solid #e0e0e0;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
            transition: all 0.3s ease;
            background: white;
        }
        .strategy-card:hover {
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transform: translateY(-5px);
        }
        .strategy-card h4 {
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        .key-point {
            font-weight: 600;
            color: var(--secondary-color);
        }
        .fact-box {
            background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
            border-radius: 10px;
            padding: 20px;
            margin: 25px 0;
            border-left: 5px solid var(--secondary-color);
        }
        blockquote {
            border-left: 4px solid var(--accent-color);
            padding-left: 20px;
            margin: 25px 0;
            font-style: italic;
            color: #555;
        }