Alert
An inline message that is not a live region by default — an alert role interrupts a screen reader, which is wrong for a notice that is simply on the page — with a `live` switch for the ones that appear in response to something.
All primitives
A primitive is one control you drop into a form or a toolbar — a segmented control, an input with an addon, a tag field.
Overlays & Feedback
4 of the 54 primitives in the catalog. Every one is a single file of plain markup and Tailwind classes — paste it and it works.
Dropdown Menu
An action menu with the menu keyboard model in full: arrows, Home/End, typeahead, and Escape that returns focus to the trigger rather than dropping it on the page body. Its limits — no collision flip, no portal — are stated in the header.
Dialog
A modal on the native dialog element, which supplies the focus trap, inert background and top layer — plus the parts it does not: scroll lock that survives two dialogs, backdrop click, and an alertdialog that ignores it.
Tooltip
Dismissible with Escape, hoverable, and persistent — the three things WCAG 1.4.13 asks of content on hover — shown on keyboard focus rather than every click, and wired with aria-describedby so it is announced even when it is not drawn.