/* Sonsoo theme laye — SINGLE SOURCE. tools/uild-theme.py writes this file into every shipped page inside the "GENERATED theme" region; the copy in a page is never edited by hand. The dark palette is the base and lives in each page's own :root. This file adds three things: 1. the light palette, keyed on data-theme="light" on (set by _shared/theme.js); 2. overrides for the handful of surfaces whose dark colour is a literal, not a token — nav, mobile bar, chat fab, hero-art veil, primary button, ghost tints; 3. logo tiles and service icon tiles — plated marks and tokenised icon containers. Selectors are prefixed with :root so they outrank same-specificity rules in the generated