Overlays
Modal and popover - the two overlay components the rest of the catalogue didn't demonstrate yet. Both are real and working, not a static mock-up.
Confirming a destructive action
`brand-guide`'s pattern: the destructive control opens
a modal that names exactly what will be deleted,
carries its own small danger zone, and never doubles
as a save button. Confirming actually submits a
genuinely CSRF-protected POST - nothing
is stored, but the request is real.
Popover
Click-triggered, unlike the tooltip elsewhere in this catalogue (hover/focus, for a one-line hint). A popover holds more than a hint, so it stays open until dismissed - Esc, a click on the trigger again, or a click anywhere else on the page.