How it looks on a mobile phone:

Login page, gives error if you enter wrong or invalid credentials.

Admin page, can see task progress by user, can delete existing tasks, can assign tasks, can add users.
User page, can only see tasks assigned to them by the admin, can mark tasks as done.
**In these screenshots, the "tasks" are called "chores" and its a "household login", but if you clone the repository they're named "tasks" and "user login" by default.