jellymai/study-planner — reverse-engineered prompt

Build me a cute offline study planner that feels like a weekly campus log notebook. It should run completely in the browser with no accounts, no server, and save everything locally so students can use it privately.

I want daily, weekly, and monthly views, with a schedule grid where I can block out study time in 10 minute chunks from 6 AM to midnight. Add a weekly to do sidebar, space for weekly goals, and a weekly review area. Let me switch between a few built in color themes like blue, pink, green, lavender, orange, and monochrome.

Please include import and export so I can back up my planner as JSON, plus export data to CSV. Make it print nicely from the browser. Keep the interface simple, friendly, and responsive. Use React, TypeScript, Vite, Tailwind, and shadcn style components if helpful. Look up current docs online if you need to.