## Fix: nav dropdowns rendered as raw text on three pages

- **The bug.** On *Who can pull the plug*, *Accepted is not acceptable* and *How it works*, both
  dropdown panels rendered open and unstyled — their items spilling across the header as run-together
  text ("How it worksAgents"). The other eight pages were fine.
- **The cause.** Those three stylesheets were written from a shared shell that predated the dropdown
  menu, so they carried the *mobile* rules for `.navgroup` / `.navmenu` but none of the desktop ones.
  With no `position:absolute` and no `display:none`, the panel simply laid out inline. Nothing failed
  — the markup was correct and the JavaScript worked; there were just no rules to hide it.
- **The fix** adds the canonical dropdown block to all three, so every page styles the shared header
  identically.
- **The gate.** Every page renders the same `<rm-menu>`, so the build now checks that every page
  stylesheet defines the rules that header needs — anchored to top-level selectors, because the same
  names appear indented inside the mobile media query and matching those would let a page pass with
  no desktop rules at all. Verified by deleting the rule and watching the build fail. A smoke group
  also asserts the panel is hidden, positioned out of flow, and opens on click, on every page.