body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            margin: 0;
            padding: 0;
            background-color: #f8f9fa;
        }
        main {
            padding-top: 80px;
            padding-bottom: 40px;
        }
        .container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1 {
            color: #0d6efd;
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            text-align: center;
            border-bottom: 2px solid #e9ecef;
            padding-bottom: 15px;
        }
        h2 {
            color: #0d6efd;
            font-size: 1.5rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 5px;
            border-bottom: 1px solid #e9ecef;
        }
        p {
            margin-bottom: 1rem;
        }
        ul {
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .nav-section {
            background-color: #f1f3f5;
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 30px;
        }
        .nav-section ul {
            list-style-type: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .nav-section li {
            margin-bottom: 0;
        }
        .nav-section a {
            text-decoration: none;
            color: #0d6efd;
            background-color: #e7f1ff;
            padding: 5px 10px;
            border-radius: 3px;
            display: inline-block;
            transition: background-color 0.3s;
        }
        .nav-section a:hover {
            background-color: #cfe2ff;
        }
        .date-info {
            text-align: center;
            font-style: italic;
            margin-bottom: 2rem;
            color: #6c757d;
        }
        section {
            margin-bottom: 2rem;
            background-color: white;
            padding: 20px;
            border-radius: 5px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }