:root{
/* Soft, low-alpha shadows — cards use blur 10-12 at ~3-4% opacity in light mode, ~15-40% in dark */
--shadow-card:0 2px 10px rgba(0,0,0,0.04);
--shadow-card-dark:0 2px 10px rgba(0,0,0,0.15);
--shadow-raised:0 4px 12px rgba(0,0,0,0.06);
--shadow-floating:0 8px 24px rgba(13,148,136,0.35);
--shadow-dialog:0 10px 20px rgba(0,0,0,0.3);
}