Info Hint

The quiet inline help affordance: a muted circle-i that opens a small, self-contained popover with one short answer. It’s the on-demand sibling to the Notice (which explains always-on). Tap it, or press Enter when focused; it dismisses on outside click or Esc.

Anchor it to a group, section, or field label ONLY: never a page title, a value, a button, or a Notice, which carry their own help. And hold the density budget: explain a concept once at its canonical home, at most one dot per glance, a handful across the whole journey. The rules live in THEME.md §16.