Depth built from shadow in dark mode
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Rule · bucket: judgment · severity: note · detector: none · since: v0.1.0
Section: Things to avoid
Group: Colour and contrast

Forbidden:
  The same shadow tokens carried into dark mode to lift cards off the page

Instead:
  In dark mode, elevation comes from the **background colour** — `bg-base` → `bg-raised` → `bg-overlay`, each lighter than the last. Shadows are close to invisible on a dark surface. `--shadow-raised` resolves to `none` in dark for exactly this reason.

Also: shadow colour derives from the text colour, never pure black, so it sits inside the palette rather than on top of it.