.form .fields {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px 30px;
    margin-bottom: 16px;
    width: 800px;
}

form#registerForm {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (max-width: 768px) {
    .form .fields {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}