/* The visual state follows the theme resolved in , not hard-coded HTML aria defaults. */ html.light .theme-switch button[data-theme="light"], html.dark .theme-switch button[data-theme="dark"]{ background:var(--gold); color:var(--on-gold); } html.light .theme-switch button[data-theme="dark"], html.dark .theme-switch button[data-theme="light"]{ background:transparent; color:var(--muted); }