idation feedback
            const inputs = document.querySelectorAll('input, select, textarea');
            inputs.forEach(function(input) {
                input.addEventListener('blur', function() {
                    if (this.btn-closest('form').classList.contains('was-validated')) {
                        this.checkValidity();
                    }
                });
                
                input.addEventListener('input', function() {
                    if (this.btn-closest('form').classL