- "Dark" base layer was bright OSM in prod; invert the raster via
.drb-tiles-dark so dark-theme overlays sit on a dark ground.
- Rail and mobile incident cards are opaque, not glass over the map.
- Dark --ink-muted #77839A -> #8C98AE, --sev-major #D03B3B -> #F05252
(both failed AA as small text on surface/raised).
- Card borders used `color + "55"` on CSS var() colours, which is
invalid CSS — no border rendered. Now color-mix.
- 10px rail labels -> 11px.
Frontend unverified: no Node on the authoring box (#207).
Closes#136
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Logan CusanoandClaude Opus 5.5
8099871c68