body {
            font-family: Arial, sans-serif;
            text-align: center;
            background-color: #f4f4f4;
        }
        .container {
            width: 50%;
            margin: 50px auto;
            padding: 20px;
            background: white;
            box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
            border-radius: 10px;
        }
        input, button {
            margin: 10px;
            padding: 10px;
            font-size: 16px;
        }
        button {
            cursor: pointer;
            background-color: #28a745;
            color: white;
            border: none;
            border-radius: 5px;
        }
        button:hover {
            background-color: #218838;
        }
        .message {
            font-size: 18px;
            color: #333;
        }