If you want an introduction on how to use Cursor as a designer, here’s a must-watch video. It's just over half-an-hour long and Elizabeth Lin goes through several demos in Cursor.
Cursor is much more advanced than the AI prompt-to-code tools I've covered here before. But with it, you'll get much more control because you're building with actual code. (Of course, sigh, you won't have sliders and inputs for controlling design.)