body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f4f4f9; }
        .container { max-width: 800px; margin: 30px auto; padding: 30px; background: #fff; border-radius: 8px; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); }
        h1 { color: #15332a; font-size: 2.2em; border-bottom: 2px solid #ccc; padding-bottom: 10px; }
        h2 { color: #333; margin-top: 25px; border-bottom: 1px dotted #eee; padding-bottom: 5px; }
        h3 { color: #555; margin-top: 15px; }
        ul { list-style: disc; margin-left: 20px; }
        .nav-buttons { text-align: center; margin-top: 40px; }
        .nav-buttons a {
            display: inline-block;
            padding: 10px 20px;
            margin: 3 10px;
            background-color: #064208;
            color: #fff;
            text-decoration: none;
            border-radius: 5px;
            transition: background-color 0.3s;
        }
        .nav-buttons a:hover {
            background-color: #075656;
        }