Angular Authentication with .NET Core API wrapped Auth0

Could you please guide me how to implement below scenario

Background: We have already implemented Auth0 in Angular and is working good but we are exposing ClientId to public. I don’t want to expose Auth0 related configuration data to outsiders.

Can we implement Auth0 login in .NET core API and call these methods from Angular.
In this method we are exposing .NET Core API (wrapper Auth0 methods).

Also I would like to know how do we achieve SSO using this approach.
Please provide any documents or links.