Northline-dense profile

Level claimed: L4 Light + dark: yes Axes authored: - L1 colours + --bw-color-surface-raised - L2 font families - L3 radius + elevation (same material language as northline-material, including --bw-radius-xl and --bw-elevation-4 for overlay chrome) - L4 --bw-space-1 (0.1875rem) - L4 brand default density: data-density="compact" plus tighter --bw-density-* under that mode Kit exceptions: none Preview routes: shell, card, form, marketing band with data-bw-brand="northline-dense" and data-density="compact"; prefer {% bw_token_specimen %} plus live kit surfaces Contrast: fg-on-accent light and dark (verify ≥ 4.5:1) Deferred: spacious/comfortable brand tuning; page margins stay page-owned; toast --bw-elevation-5

Fictional L4 torture pack: material language plus tighter system rhythm. Not a recommended product look. See THEME.md.