/* Masquer uniquement le bouton Buy Now */
.buynow-button {
    display: none !important;
}

/* Ou si le bouton a plusieurs classes */
.btn.btn-primary.buynow-button,
.add-to-cart.buynow-button {
    display: none !important;
}

/* Garder visible le bouton Add to Cart simple */
.btn.btn-primary.add-to-cart:not(.buynow-button) {
    display: block !important;
}