:root{
  /* Shadows are cool navy-tinted (never black) and shallow. */
  --shadow-none:none;
  --shadow-sm:0 1px 2px rgba(8,19,31,.07), 0 1px 1px rgba(8,19,31,.05);
  --shadow-md:0 4px 12px rgba(8,19,31,.09), 0 1px 3px rgba(8,19,31,.06);
  --shadow-lg:0 12px 32px rgba(8,19,31,.14), 0 2px 8px rgba(8,19,31,.07);
  --shadow-xl:0 28px 64px rgba(8,19,31,.2);
  --shadow-inset:inset 0 1px 0 rgba(255,255,255,.6);
  --glow-accent:0 0 0 1px rgba(29,111,184,.3), 0 6px 22px rgba(42,176,219,.3);
  --ring-focus:0 0 0 3px rgba(42,176,219,.45);
  --blur-veil:saturate(140%) blur(14px);
  --veil-light:rgba(255,255,255,.72);
  --veil-dark:rgba(8,19,31,.62);
}