Vinesh-024/DSA_150 ? reverse-engineered prompt

Build me a simple web app for tracking a 150 day DSA practice challenge.

I want a clean place where I can see each day, open the topic for that day, mark it done, and keep track of my progress over time. It should feel easy to use, with a straightforward dashboard, a list or calendar of days, and some way to see what I’ve finished and what’s left. If it makes sense, save the data so progress doesn’t disappear when I refresh, and use the existing Firebase setup if that’s already intended. Keep the UI modern but simple, and make it work nicely on both desktop and mobile.

Use the current project structure and TypeScript, and look up current docs online if you need to. I mainly want something I can actually use every day to stay on track with the challenge.