mahatojayati/echomind ? reverse-engineered prompt

Build me a personalized AI learning app called EchoMind.

I want a clean, modern site where a student can enter a topic, pick their preferred language, and tell the app their current skill level and how they like to learn. Then the app should generate a tailored lesson plan with clear sections, practice questions, and a full curriculum that adapts to the user. When a lesson is being created, I want it to stream in gradually so it feels alive instead of making the user wait on a blank screen. For bigger curriculum requests, handle it in the background and let the user check progress until it is ready.

Please make it feel polished and friendly, with smooth animations and a responsive layout. It should also save generated lessons and user preferences, and if the AI service is unavailable or the key is missing, it should still work with sensible fallback content. Look up current docs online if you need to.