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multica/packages
Lambda 0b8bda0f51 fix(chat): widen the conversation gutter and align its edges (MUL-5497)
The chat body hugged its pane: a flat px-5 (20px) on every layer, which
reads as cramped once the conversation pane is wider than the floating
window it was tuned for.

The gutter now scales with the CONTAINER — 20px base, 32px past @2xl
(672px), 48px past @4xl (896px) — so the chat tab's resizable pane and
the agent builder column breathe while the 360px floating window keeps
exactly its current spacing. Viewport variants would have been wrong
here: these three surfaces are independent widths inside one window.

Layout also drifted between layers. The message list capped `max-w-4xl`
with its padding INSIDE the cap while the banners and composer put theirs
outside, so past ~936px the text sat 20px narrower than the box below it.
Both now come from one CHAT_GUTTER / CHAT_COLUMN pair — gutter outside the
cap — which is what keeps the edges locked together.

Co-authored-by: multica-agent <github@multica.ai>
2026-07-29 21:34:15 +08:00
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