Authored in Claude Code following the design-DNA established by claude.ai/design
in v0.1 (tokens + Tier 1 + Tier 2). Visual coherence verified against existing
components via tier3-preview.html showcase.
shared/playground-design-system/components-tier3.css (~480 lines):
- pair-before-after: ROS/DPIA/AI Act inherent->residual primitive with delta
pill (improved/worsened); responsive collapse to vertical on narrow viewports
- aiact-timeline: 4 EU AI Act milestones (2025-02-02 .. 2027-08-02) with
per-system countdown chips (urgent/soon/distant), today-marker, and per-
milestone passed/active/upcoming states
- tracks: Guide/Explore/Expert 3-track entry pattern carried from Playground v2,
top-bar color coding per track
- rights-matrix: FRIA 12 EU Charter rights x 5 impact levels (Art. 27 EU AI Act)
- capability-matrix: license x kapabilitet with explicit icons per status
(available/cost/conditional/missing) - never color-only
- agent-grid + agent-card: parallel-worker status with state pills, progress
bars, metric chips, pulsing dot for running, distinct failure-red token
- error-summary: Aksel/GOV.UK pattern, white bg + red border + dark body text
+ red heading (NOT large pink fill — fixes contrast bug)
- guide-panel: Aksel friendly inline guidance, info/success/warn variants
Also fixes shared/playground-design-system/base.css inline-message--error which
had the same contrast bug as ErrorSummary v1: white text on light-pink soft-fill
was unreadable. Now uses surface bg + critical border + primary text + critical
strong/heading color. Same dark-mode treatment.
shared/playground-examples/tier3-preview.html (~470 lines): live demo for all
8 components with realistic Norwegian mock-data (Lier kommune ROS T-001
threat, AI Act timeline 2026-05-02 today-marker, FRIA EU Charter rights, M365
capability-matrix, 4-worker utredning grid). Used to validate visual coherence
before committing.
Updates shared/playground-design-system/README.md with Tier 3 component table
and provenance note distinguishing v0.1 (claude.ai/design) from this addition
(Claude Code).
Remaining for v0.2: 12 plugin-specific Tier 3 components (sankey/toxic-flow,
fleet-overview, kanban Keep/Review/Remove, maturity-ladder, classify-and-
transform, cycle-ribbon, persistent-antipattern badge, suppressed-signals,
ExpansionCard, ReadMore, FormProgress, Aspirational vs Committed visual). To
be generated by claude.ai/design in a supplement session before plugin
Playground work begins.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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