Yellowbird®. A single yellow plane under a black sun, every letter drawn with a fat marker.

Yellowbird is a high-volume, two-color world: a single vivid yellow floods every section while black does all the structural and typographic work. The page reads like a hand-drawn condiment billboard — flat surfaces, thick hairline borders instead of shadows, generous breathing room, and a custom chunky display face that turns the wordmark into the hero. There is no gradient depth, no glassmorphism, no card-on-card layering; spatial separation comes from color swaps (yellow band → cream card → black button) and generous padding. Interactive elements stay minimal and confident: most surfaces are borderless on the yellow canvas, product cards use a 30px radius and a solid black stroke, and the one true CTA is a heavy black pill-shaped button with white text. The blue (#007aff) appears only as a ghost-button border for secondary actions, making it feel borrowed rather than owned.