The readiness gauge is the one idea kept from the rejected proposal C — a single numeral and a bar, on Trip Home and at the top of the checklist, answering the only question a pre-trip user actually has. The event card answers when · where · what is booked in one glance, in that order, as fact rows so unknown is a sentence rather than a blank — except that What is booked renders nothing at all when all four fields are absent, which is the one place the unknown-is-a-state rule is deliberately broken: a walk through a neighbourhood has no booking reference, and four "not known yet" lines is noise rather than honesty. The handover surface is the only thing in the app that sizes to the viewport rather than to the type ramp, because SPEC-03 requires it to scale beyond 200% and support landscape and a fixed size cannot do both. The lead is at most a fifth of the available width — five Korean glyphs to a line, which is what a place name needs at the ~80cm of a car seat — and at most 0.26 of the available height, which is the landscape guard. §7.2, §11.13, §11.4, §6.2.