@media (max-width:768px) {

    .navbar {

        flex-direction: column;

    }

    .product-grid {

        grid-template-columns: 1fr;

    }

}

.product-actions button.btn-stock-out,
button.btn-stock-out:disabled,
button:disabled {
    background-color: #d9d9d9 !important;
    color: #666 !important;
}