/* 99 Percentiler — natural atmosphere, strictly behind the portal content. */
.portal-shell > .portal-cosmos {
  display: block;
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  contain: strict;
  pointer-events: none;
  user-select: none;
  background: #020304;
}
.portal-cosmos > canvas,
.portal-cosmos > video {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.portal-cosmos .portal-aurora-fallback {
  opacity: .9;
  filter: blur(3px);
}
.portal-cosmos .portal-aurora-canvas { opacity: 0; }
.portal-cosmos .portal-aurora-video { object-fit: fill; background: #020304; }
.portal-cosmos.has-aurora .portal-aurora-canvas { opacity: 1; }
.portal-cosmos.has-aurora .portal-aurora-fallback,
.portal-cosmos.has-aurora .portal-aurora-video { display: none; }
.portal-cosmos .portal-star-canvas {
  opacity: .88;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 21%, #000 100%);
  mask-image: linear-gradient(to bottom, transparent, #000 21%, #000 100%);
}
@media (max-width: 759px) {
  .portal-cosmos .portal-star-canvas { opacity: .72; }
}
@media (prefers-reduced-motion: reduce) {
  .portal-cosmos > canvas { transition: none; }
}
@media (forced-colors: active), print {
  .portal-shell > .portal-cosmos { display: none; }
}