xdeiwnwkj/Clue ? reverse-engineered prompt

Build me a simple browser based app called Clue that runs in the page and feels polished and easy to use.

I want it to have a clean layout, a place for the main content, and some basic interactions handled in JavaScript. Make the styling look modern and responsive, so it still works well on mobile. If it needs data or extra logic, use the api folder and wire it up in a straightforward way.

Please keep everything self contained and make sure the page loads cleanly from the existing HTML, CSS, and JavaScript files. Add sensible empty states and make the app feel finished, not like a rough demo. If you need to check anything, look up current docs online and use the simplest approach that works.