:root{
  /* Biln is an almost shadowless system: structure comes from 1px cream borders.
     Shadows appear only where an element floats over imagery. */
  --shadow-none:none;
  --shadow-card:0 1px 2px rgba(11,15,44,.04);
  --shadow-raised:0 4px 16px rgba(11,15,44,.08);
  --shadow-float:0 12px 32px rgba(11,15,44,.14); /* card over the map banner */
  --ring-focus:0 0 0 3px rgba(252,103,50,.35);
}