Android POS UI Material 3

I already have a clickable prototype of an end-to-end Android point-of-sale application. The next step is a high-fidelity UI that strictly follows Google’s Material Design 3 (Material You) principles without adding any custom brand palette—dynamic color, updated typography, shape tokens and motion patterns should all reflect the standard guidelines.

Scope
• Every screen in the prototype—from login and dashboard to payment processing and the more advanced flows—is included. Nothing is out of scope.
• Target platform is Android only; layouts must accommodate phones and 7–10" tablets in both portrait and landscape.

Deliverables
1. A complete Figma (or comparable) file with components, styles, and responsive break-points.
2. Exportable assets (SVG/PNG), named and grouped for hand-off to developers.
3. A brief design rationale summarising how each MD3 spec was applied.

Acceptance criteria
• Consistent use of MD3 tokens (color roles, typography, elevation).
• Usability verified in light & dark modes.
• All flows match the existing prototype; no navigation gaps.

The prototype link and additional notes will be shared once we start.