.single-product.product-category-aftokollita-ilektrologikou .entry-summary form.cart .variations {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1em;
    margin-bottom: 1em;
}

.single-product.product-category-aftokollita-ilektrologikou .entry-summary form.cart .variations select {
    width: 100%;
}

@media (max-width: 767px) {
    .single-product.product-category-aftokollita-ilektrologikou .entry-summary form.cart .variations {
        grid-template-columns: 1fr;
    }
}