body {
            font-family: Arial, sans-serif;
            padding: 0;
            margin: 0;
            background-color: #f2f2f2;
            color: #333;
        }
        nav {
            background-color: #0056b3;
            padding: 10px 20px;
        }
        nav ul {
            list-style: none;
            display: flex;
            margin: 0;
            padding: 0;
        }
        nav ul li {
            margin-right: 20px;
        }
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: bold;
        }
        nav ul li a:hover {
            text-decoration: underline;
        }
        .container {
            background: white;
            padding: 20px;
            max-width: 600px;
            margin: 30px auto;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
            border-radius: 8px;
        }
        h1 {
            color: #0056b3;
        }