body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 2rem;
}

input {
    padding: 0.5rem;
    width: 300px;
}

button {
    padding: 0.5rem 1rem;
    margin-left: 0.5rem;
}

.qr-container {
    margin-top: 2rem;
}