:root{
  /* Color-block first, shadow rare. */
  --elev-flat:none;
  --elev-hairline:0 0 0 1px var(--hairline);
  --elev-soft:0 1px 3px rgba(20,20,19,0.08);
  --focus-ring-primary:0 0 0 3px rgba(204,120,92,0.15);
}