.tp-contact-input input.is-invalid,
.tp-contact-input textarea.is-invalid {
    border-color: #dc3545;
}

.tp-contact-input .invalid-feedback {
    display: none;
    color: #dc3545;
    font-size: 13px;
    margin-top: 5px;
}

.tp-contact-input .invalid-feedback.show {
    display: block;
}

.alert {
    padding: 12px 20px;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d1e7dd;
    border-color: #badbcc;
    color: #0f5132;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c2c7;
    color: #842029;
}