- replace inline filter pills with a single "Filters" popover containing
small pill buttons for fuel/radius/sort/brand (no native <select>s)
- map polish: Carto Positron tiles, hidden zoom buttons, locate-me floating
button + accuracy ring, smooth flyTo transitions, slim ⓘ attribution
- map markers no longer open Leaflet popups; clicking a marker selects the
station and surfaces the existing StationCard inline over the map, with
swipe-down-to-close and a small overlay × button
- price colour now reflects deal quality (cheap / average / expensive vs
search avg ± 3p) on both list and map — stable across sort/filter
- promote the "X ago" timestamp into the card header so it stays visible
in the expanded state
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>