put shop name instead of product-category name

I want to show permalink like, my shop name is “acatalog” and a category “gift”.
Now when i click on a category, i want url like https://www.example.com/acatalog/gift
and as well as when i click on a product, i want https://www.example.com/acatalog/gift/product-name
.
In shortly i want to put shop name instead of product-category slug