farhankabir133/RankFlow-AI — reverse-engineered prompt

Build me a polished web app called RankFlow AI for students and job seekers in Bangladesh who are preparing for BCS, university admission, bank jobs, and similar exams.

I want it to feel like a personal study operating system, not just a quiz site. Users should be able to sign up with email, Google, or continue as a guest, take practice exams with timed and custom modes, see instant answers in English and Bangla, and get a live rank prediction based on speed, accuracy, and subject strength. Add a Bangla AI tutor that can explain topics, translate, suggest study prompts, and answer follow up questions in a sidebar.

Also include progress analytics, a spaced revision flashcard area, and a written exam evaluator where someone can paste an answer or upload a handwriting image and get a marksheet style breakdown. Save user progress so they can come back later. If possible, let them export practice sets and have an offline fallback. Make the UI modern, smooth, and mobile friendly. Look up current docs online if you need to.