/* ── Light theme ────────────────────────────────────────────────────── Shared, site-wide light/white palette. Works on any page as long as it: 1. Sets data-theme early (see the inline snippet used on every converted page - prevents a flash of the wrong theme on first paint). 2. Loads this stylesheet. 3. Loads site-theme.js (defines window.PolyPuffTheme.{get,set,toggle}). Part 1 below re-themes anything already written as var(--x) - the vast majority of every page's own CSS, since --bg/--text/--sky/etc. is the established convention site-wide (union of every page's own :root block). Part 2 patches the shared nav/sidebar chrome, which app-page.css and site-nav.js's runtime-injected