Flutter Front-End: Design 80 Screens

First read then Bid** I am rebuilding my own app and need about 80 screens laid out in clean, production-ready Flutter code. This is strictly front-end work: no API wiring, no backend logic. Each screen must compile and run responsively on both phones and tablets... (Budget: $30 - $250 USD, Jobs: Dart, Flutter, Git, GitHub, Graphic Design, Mobile App Development, User Interface / IA)