/* The page shell: nav, mobile drawer, back to top, footer. * * One file for all 32 app pages. It deploys to /assets/shell.css at the origin * and every page links it from , the way a11y.css and share.css already * work. Change the fleet's chrome here; there is nowhere else to change it. * * Why this exists: on 2026-09-14 the fleet carried THIRTEEN different nav * shapes and TWENTY-FIVE different footer shapes, because every page owned a * private copy of both and single-app polish passes edited their copy alone. * GifMint had drifted furthest: its own logo mark class, its own download * button class, a sticky bottom download bar and a back-to-top button that * existed on no other page in the fleet. * * This file is linked from AFTER each page's inline