eroblaze/wpmonster ? reverse-engineered prompt

Build me a lightweight typing practice website with a fun monster theme, like wpmonster. I want a clean page where someone can start a typing test right away, see a passage or words to type, and get live feedback as they type. It should track the basic stuff people care about, like speed, accuracy, mistakes, and when the test is finished, then show a simple results screen they can try again from. Make it feel fast and minimal, with a playful design that matches the little monster vibe, but keep the interface easy to use.

Please set it up so I can run it locally and iterate on it quickly. Use current best practices, and look up any docs online if you need to. I’d also like the app to be responsive so it works well on desktop and mobile, and the typing experience should feel smooth and immediate.