What I want to do exactly is beyond this scope and requires to work with The API it self. which is making new signin and signup pages with MUI and full custom design for inputs ......, - But for simplicity and time I just want to split signin/signup component into two different pages, override the UI to change colors and remove

Already member .....Signin

and any other thing keeping only inputs and buttons. [For design I assume docs content is rich already] - redirect to signin if page is protected and the user is not signed in and make a link to sign up if user is not registered yet