.single_add_to_cart_button, .buy-now-btn {
    padding: 0 30px;
    height: 50px;
    line-height: 50px;
    width: 50%;
    max-width: 100%;
    margin-left: 1em;
    border-radius: 4px;
}
.cart {
    width: 100%;
}
form.variations_form.cart {
    display: block;
}
form.variations_form.cart .variations .label {
    text-align: left;
    padding: 0;
}
.thb-product-detail .woocommerce-variation-add-to-cart {
    display: grid;
    grid-template-columns: minmax(80px, 120px) 1fr 1fr;
    grid-column-gap: 10px;
    align-items: center;
}

.thb-product-detail .product-information .quantity+.single_add_to_cart_button {
    margin-left: 0;
}

.thb-product-detail .product-information form.cart.variations_form .single_add_to_cart_button, .thb-product-detail .product-information form.cart.variations_form .buy-now-btn {
    width: 100%;
    margin-left: 0;
    margin-right: 0;
}

.thb-product-detail .product-information .quantity {
    margin-right: 0;
}

.thb-product-detail .product-information form.cart:not(.variations_form) {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.thb-product-detail .product-information form.cart:not(.variations_form) .single_add_to_cart_button, form.cart:not(.variations_form) .buy-now-btn {
    flex: 1;
    margin-left: 10px;
    padding: 0;
}

.woocommerce-variation-add-to-cart-disabled .buy-now-btn {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}