/* =====================================================================
   variables.css — theme/design custom properties (colours, tokens)
   ---------------------------------------------------------------------
   Part of the incremental split of the site.css monolith.
   Loaded FIRST (before site.css and themes) so base :root custom
   properties are defined before use; theme-*.css files still override
   them per active theme.

   Populated incrementally: move :root custom-property declarations out
   of site.css into here as pages are worked on. Do not big-bang move.
   ===================================================================== */