Layout
Container
Page width primitive — default reading column, narrow `column` for prose, full-bleed `bleed`.
Install
bash
npx shadcn@latest add https://supaui.dev/r/container.jsonDefault — 1200px reading column
max-width 1200 · padded 20–32 px
Column — 720px prose column
max-width 720 · long-form measure
Bleed — full width
no max-width — for heroes, callouts, charts
API
variant— default · column · bleed.