ShailavMalik/Smart_Study_Planner ? reverse-engineered prompt

Build me a smart study planner web app for students.

I want users to sign in, add their subjects with exam dates, and enter how many hours they can study each day. Then the app should generate a personalized study timetable for them automatically, spread the workload across the available days, and show it in a clean weekly calendar view.

Please make it feel polished and easy to use on mobile and desktop, with a modern student friendly look. Save each user’s latest subject list and timetable so they can come back later and see their plan again. Use a React frontend, a Node and Express backend, and MongoDB for storage. If you need to look up current docs online for anything, go ahead.

I mainly want something that feels like a real useful exam planner, not just a form, so focus on a smooth experience and a nice visual schedule.