Basket to cart

Hi.

I specialize in creating logos and offer three different logo design packages for sale.

When a customer selects a package, a pop-up window opens, allowing them to enter specific information through custom fields. This enables me to receive a detailed brief about their logo requirements, which works seamlessly.

After they have filled out the fields, instead of simply adding the item to the basket, I want to redirect them directly to the cart for payment. Do you have any suggestions on how to achieve this?

Thanks a lot !

I have another issue :
On this page :

https://raccoon-greyhound-fggs.squarespace.com/boutique
PW : logomaker

I've succefully hidden the products. But the category link is still showing (bottom left, "logo")
How to hide it ?

Thanks !