/* Dedicated auth contrast layer.
   Kept on its own asset path so production CDNs cannot reuse an older auth.css response. */
:root[data-theme='dark'] .auth-showcase {
  background:
    radial-gradient(
      560px 360px at 50% 4%,
      color-mix(in srgb, #4b41e1 24%, transparent),
      transparent 72%
    ),
    color-mix(in srgb, var(--color-surface) 88%, #141b2c);
}