I mostly use the web version of Claude. But generally my approach has been to start simple and build bigger.

"I want a website that does X."

"Can you add a dark mode toggle."

"I don'tlike those colors, can you make it more blue."

"Can you add a log in function with a simple database backend that doesn't use a full SQL install. Users should be able to add a profile image and username."

"The first user should be an admin and can add or remove other admins."

"Admins can change the theme colors on a settings page."

That sort of thing. Start basic, add features, usually one by one, test as you go, see what breaks, if anything.