Subtle brass hairlines at 4–6% opacity. Never in focal content — background only.
6. Usage rules
Brass = achievement, trust, heritage. Use for Shielded / premium states, certifications, earned milestones. Never for warnings or CTAs. Kintsugi seam = repair made beautiful. Use as section dividers, progress completion, "damage we transform." Never as decorative filler. Scratched texture = weathered resilience. Ambient background only — max 6% opacity, never over body text. Heart-lock motif = the mark itself. Reserved for the logo and hero moments. Do not re-draw variants.