Mark a8bcc17822 fix(debug 04-06): decouple welcome-hero mark stroke via --mks-mark-stroke ...

Operator-empirical Task 4 checkpoint flagged the dark-mode mark stroke
as muddy ink-on-madder. Root cause: .welcome-hero__mark used
`color: var(--mks-fg-inverse)`, which is a SEMANTIC text-foreground-on-
inverse-surface token that flips to ink-900 in the dark theme
(tokens.css line 244). The mark sits on a theme-independent madder-600
circle, so the stroke must be theme-independent too.

Fix: introduce a dedicated BRAND-COMPONENT token --mks-mark-stroke =
var(--mks-linen-50) in the universal :root block. CRUCIALLY NOT
overridden in the .dark/[data-theme="dark"] block — stays linen-50 on
every surface. Rewire .welcome-hero__mark to point at the new token.

SVG (mokosh-mark.svg) unchanged — `stroke="currentColor"` cascade
plumbing identical; only the wrapper's color source changed.

A35 strengthened: extracted live-DOM probe into a helper, now probes
BOTH light + dark themes (data-theme="dark" toggle on documentElement),
and added A35.5 — the decouple proof that light.computedStroke ===
dark.computedStroke === "rgb(250, 247, 241)" (linen-50). No new
__MOKOSH_UAT__ symbol; FORBIDDEN_HOOK_STRINGS stays at 12.

Scope expansion note: src/welcome/welcome.css was not in Plan 04-06
re-plan iter-2 files_modified. The edit is authorized by the operator's
TWEAK verdict on Task 4 checkpoint.

Verification:
- /tmp/04-06-welcome-hero-{light,dark}.png re-shot — both show identical
  crisp linen-on-madder grid icon.
- A35.5 LIVE-DOM probe (UAT): light="rgb(250, 247, 241)", dark=same.
- UAT 36/36 GREEN; vitest 187 + 1 tolerated webm-remux flake.
- 6/6 pre-checkpoint bundle gates PASS; FORBIDDEN_HOOK_STRINGS = 12.

Debug session: .planning/debug/04-06-dark-mode-mark-decouple.md

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-05-26 12:54:54 +02:00

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