/* The participant chrome: ground, voices, identity block. * * Shared by every page a participant meets — the entrance (/), the join sheet * (/join/

), the identity step (/identity/), the survey itself and
 * the debrief (/thanks) — so the walk from a QR code to the withdrawal link
 * looks like one place rather than five. The survey and debrief joined on
 * 27 August 2026; before that they still wore the old teal Bootstrap bar, and
 * the pages a participant spent the most time on were the two that did not
 * look like the tool they were in.
 *
 * This file holds ONLY what those pages have in common. Page-specific rules
 * live beside it (home.css). It is CG's own: static/css/share-card.css is a
 * FLEET-SHARED file, byte-identical in eight tools and checked by
 * server-ops/sync_shared_assets.py, so nothing here may edit it — the join
 * sheet keeps the fleet card and simply stands on CG's ground.
 *
 * In a stylesheet rather than a