body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #007BFF;
}

.confirmation {
    color: green;
    font-weight: bold;
    margin-top: 20px;
    display: none;
}