:root{
  /* Aurora = layered radial washes on near-black. Never a linear purple gradient. */
  --aurora-1: radial-gradient(60% 45% at 18% 6%, rgba(25,224,119,.22), transparent 70%); /* @kind other */
  --aurora-2: radial-gradient(48% 40% at 82% 0%, rgba(76,227,255,.16), transparent 72%); /* @kind other */
  --aurora-3: radial-gradient(55% 50% at 60% 110%, rgba(154,123,255,.14), transparent 70%); /* @kind other */
  --aurora-bg: var(--aurora-1),var(--aurora-2),var(--aurora-3); /* @kind other */
  --aurora-hero: var(--aurora-bg),var(--surface-app); /* @kind other */
  --aurora-line: linear-gradient(90deg,transparent,var(--neon-a40) 30%,rgba(76,227,255,.4) 70%,transparent); /* @kind other */
  --grid-lines: linear-gradient(var(--white-a3) 1px,transparent 1px),linear-gradient(90deg,var(--white-a3) 1px,transparent 1px); /* @kind other */
  --grid-size: 56px 56px; /* @kind other */
  --noise-opacity: .035; /* @kind other */
}