Cursor is constantly deleting my CSS without me asking it to while I'm trying to fix issues.

Has anyone else had this problem?

I tell Cursor to fix a database query and for no reason it starts "cleaning up" the frontend file I have open and removes all my Tailwind classes.

The backend code is working,. I just click accept.. Then I look at the browser and my user interface is completely messed up. I'm saving a lot of time on server logic. Spending all that time putting my styling back the way it was.

Is there a way to lock files so the AI can't change them at all during a refactor?