Disable quantity and the shopping cart on individual product pages?

Site URL: https://mango-crow-ccld.squarespace.com

Can anyone help me disable the quantity and the shopping cart on my individual product pages? I have it disabled on the main page, but I still see it on the individual pages. This is what I have in there that isn't working on the individual pages:

/* Hide the add-to-cart button */
.tag-hidecart .ProductItem-summary .ProductItem-details {
  .sqs-add-to-cart-button-wrapper, .product-quantity-input {
  display: none;
  }
}
.product-add-to-cart,
.product-price { visibility: none; display: none; }

Add this to Design > Custom CSS

.sqs-add-to-cart-button-wrapper, .product-quantity-input {
  display: none !important;
  }