:root{
  --sh-hairline:0 0 0 1px var(--border-hairline);
  --sh-card:0 1px 2px rgba(20,23,26,.04),0 6px 16px rgba(20,23,26,.06);
  --sh-card-hover:0 2px 4px rgba(20,23,26,.06),0 10px 24px rgba(20,23,26,.10);
  --sh-sticky:0 -1px 0 var(--border-hairline),0 -8px 24px rgba(20,23,26,.06);
  --sh-brand:0 8px 22px rgba(230,0,18,.26);
  --sh-inset-press:inset 0 1px 2px rgba(20,23,26,.10);
}