Use custom CSS in a selected SharePoint list

Actual process:

I am having a CSS and JS file in the Assets of the site, which represent it to a List / Library using the Content Editor (which refers to the CSS / JS).


What I need is that the end user can not access these files or can not see the codes within my CSS and JS. So, is there any possibility of adding the CSS within a master page or somewhere and apply this CSS only to some lists / libraries, how can we refer these lists / libraries to a custom list and only for these lists will work my CSS?