/* ===== Form Validation Style (PRO) ===== */
.form-control {
    transition: border-color .2s ease, box-shadow .2s ease;
}

.is-invalid {
    border-color: #dc3545 !important;
    box-shadow: 0 0 0 .15rem rgba(220, 53, 69, .15);
}

.error-text {
    font-size: 12px;
    margin-top: 4px;
    color: #dc3545;
}

.btn-loading {
    pointer-events: none;
    opacity: .85;
}