**Title:** MVP 1.2 — Build the frontend (with shadcn/ui) ## Goal Implement the UI to show an **AUD → USD/EUR/JPY/GBP/CNY** list using **shadcn/ui**. ## Tasks - [x] Layout: responsive (sidebar on md+, list-only on mobile). - [x] Use shadcn/ui: `Card`, `Input`, `Button`, `Separator`, `Skeleton`, `RadioGroup` (+ `Card` for single-select). - [x] Home page: amount input, 5 currency cards, **Refresh rates** button. - [x] States: loading (Skeleton), error message, instant recompute on input. ## Acceptance - [x] Page renders 5 cards with converted values; input updates instantly. - [x] Refresh triggers re-fetch with visual feedback. - [x] Proper loading/error states; accessible labels and focus.