The server/client split moved the header and sticky nav markup into
SchoolDetailShell, but their responsive rules stayed behind in
schoolSections.module.css. CSS Modules hash class names per file, so those
rules stopped matching entirely: on mobile the header details block never
collapsed ("Show all details" e2e journey failed), the toggle itself never
appeared, and the section-nav mobile swap (menu button in, link row out)
never applied.
Ports the stranded blocks into SchoolDetailShell.module.css verbatim: the
768px header block (stacked header, wrapped meta pills, details toggle +
collapse) and the 640px section-nav blocks (scroll-fade mask, bottom-sheet
panel, control swap). Adds a jest guard that every class a components/school
component references is defined in the stylesheet that component imports —
it fails on the three classes that had no rule at all here
(headerDetailsOpen, atEnd, sectionNavBackLabel).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
