.form-group.has-error .form-control {
    border-color: #dc3545;
    padding-right: 2.25rem !important;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23dc3545' viewBox='0 0 12 12'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(.375em + .1875rem) center;
    background-size: calc(.75em + .375rem) calc(.75em + .375rem);
}

.form-group.has-error select.form-control {
    background-position: calc(100% - 2rem) center;
}

.form-group.has-error .custom-file .custom-file-input~.custom-file-label {
    background-position: calc(100% - 7rem) center;
}

.form-group.has-error .form-control+.select2-container--default .select2-selection--single {
    border: 1px solid #f44336;
}

.form-group.has-error .form-check input[type="checkbox"]~label {
    color: #dc3545 !important
}