#customer-form .customer-field-hint {
    display: block;
    margin-top: 6px;
    color: #6c757d;
    font-size: 0.875rem;
}

#customer-form .customer-field-hint.is-error {
    color: #842029;
}

#customer-form .form-control.is-invalid {
    border-color: #dc3545 !important;
}

#customer-form.was-validated .form-control.is-invalid:valid {
    border-color: #dc3545 !important;
}