body {
    font-family: Arial, sans-serif;
    background: #f9f9f9;
    text-align: center;
    padding: 30px;
}
.container {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    max-width: 400px;
    margin: auto;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
input, textarea, button {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
}
button {
    background-color: #0d6efd;
    color: #fff;
    border: none;
    border-radius: 5px;
}