body {
    font-family: Arial;
    background: #f5f5f5;
    margin: 0;
    padding: 40px;
}

.container {
    background: white;
    padding: 30px;
    max-width: 500px;
    margin: auto;
    border-radius: 10px;
}

input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}

button {
    width: 100%;
    padding: 12px;
    background: black;
    color: white;
    border: none;
}