/* Rtech shadows — quiet. The brand is "ordenado", so shadows read as lift, never drama.
   All shadows are tinted with the ink-1 hue so they sit on white without going gray-muddy. */
:root{
  --shadow-none:none;
  --shadow-xs:0 1px 2px rgba(15,23,42,.06);
  --shadow-sm:0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.06);
  --shadow-md:0 2px 4px rgba(15,23,42,.06), 0 6px 16px rgba(15,23,42,.08);
  --shadow-lg:0 4px 12px rgba(15,23,42,.08), 0 16px 40px rgba(15,23,42,.10);
  --shadow-xl:0 12px 32px rgba(15,23,42,.10), 0 32px 80px rgba(15,23,42,.14);

  /* Ring shadows (borders that survive dark bg). */
  --ring-subtle:inset 0 0 0 1px var(--border-subtle);
  --ring-default:inset 0 0 0 1px var(--border-default);
  --ring-brand:inset 0 0 0 1px var(--rt-blue-500);
}