:root{
  /* Deliberately restrained: separation comes from borders and whitespace first. */
  --shadow-none:none;
  --shadow-xs:0 1px 2px rgba(35,44,60,.06);
  --shadow-sm:0 1px 3px rgba(35,44,60,.08);
  --shadow-md:0 4px 16px rgba(35,44,60,.08);
  --shadow-lg:0 12px 32px rgba(35,44,60,.12);
  --shadow-accent:0 4px 14px rgba(255,106,60,.28);
  --ring-focus:0 0 0 3px rgba(255,106,60,.28);
  --ring-focus-inverse:0 0 0 3px rgba(255,106,60,.45);
}