Stock header experience: thin utility strip (language switcher + utility links) on its own tinted band over the main logo/nav/CTA bar, composed in the header shell's slots using its TwoTier variant. The two rows read as distinct rows at different heights — a py-2 utility tier over the min-h-16 py-3 main bar — rather than one taller bar with a bordered strip.

• src/components/registry/experiences/partial-designs/header-two-tier/header-two-tier.tsx→components/registry/experiences/partial-designs/header-two-tier/header-two-tier.tsx
• src/components/registry/experiences/partial-designs/header-two-tier/header-two-tier.recipe.ts→src/recipes/header-two-tier.recipe.ts