- PageShell names the page with a visually hidden h1; a view with its own title renders it as
PageHeading and the hidden one steps aside (contract: no hand <h1> inside the shell).
- Section captions are SectionLabel headings (h2, h3 in a dialog), ui/form Section included.
- "Skip to content" is the first Tab stop and focuses the scroller's <main>.
- Below 600px of height the band's filter row folds into "Filters · n" (Feed, Plex, server log),
the same row shown in place.
- The band holds controls only: Downloads and Notifications lose their title cards, the Config and
channel-discovery intros scroll with the content, the Stats tabs and the audit pager join the band,
and the server log's toolbar sticks with the fade under it.