Flutter Login & Auth from Figma

I have a polished Figma file and need the Login / Register flow recreated in Flutter exactly as it appears in the design. Only that pair of screens is required for now, but every visual detail—spacing, colours, typography, icons—should match the Figma source so the hand-off feels seamless when I add the rest of the app later.

Beyond the UI, the screens must be fully functional. New users should be able to register and existing users should be able to log in with secure authentication. I’m open to Firebase Auth or any similarly robust solution you are comfortable with; just keep the code clean and well-commented so I can extend it.

Deliverables
• Flutter project (Dart 3.x) with Login and Register screens faithful to Figma
• Integrated authentication service (email / password is fine) with error handling and basic user state management
• README explaining setup, dependencies, and how to switch credentials or providers

Acceptance criteria
• Pixel accuracy within ±2 px of the Figma design on common Android and iOS devices
• Successful sign-up, sign-in, and sign-out flows fully tested
• No crashing, leaking credentials, or blocking UI during network calls

If you’ve tackled similar Figma-to-Flutter builds with auth before, I’d love to see a sample repo or APK. Let’s get this flow production-ready.