Typography and layout specifications across three breakpoints: 1920px, 1440px, and 1280px. Mobile and tablet were explicitly out of scope, as the legacy product was desktop-only. Inter, extracted from the app's Element Plus UI framework, and Dosis, drawn from the marketing site, were established as the two typefaces, bridging product and marketing surfaces for the first time. A 12-column grid and per-breakpoint type scales were documented throughout.