.Lightbox__backdrop {
  position: fixed;
  inset: 0;
  /* Under the grain and the reticle, over everything else including the
     character that arrives in Phase 4. */
  z-index: 9990;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 5vw, 5rem);
  background: rgb(8 8 10 / 92%);
  animation: lightbox-in var(--dur-fast) var(--ease);
}

@keyframes lightbox-in {
  from {
    opacity: 0;
  }
}

.Lightbox__frame {
  width: min(100%, 1400px);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--grey-2);
  border-radius: 2px;
  background: var(--grey-1);
}

.Lightbox__iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.Lightbox__close {
  position: absolute;
  top: clamp(1rem, 4vw, 3rem);
  right: clamp(1rem, 4vw, 3rem);
  padding: 0.6rem 0.9rem;
  background: none;
  border: 1px solid var(--grey-2);
  border-radius: 2px;
  color: var(--fg);
  cursor: pointer;
  transition:
    border-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.Lightbox__close:hover,
.Lightbox__close:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

@media (prefers-reduced-motion: reduce) {
  .Lightbox__backdrop {
    animation: none;
  }
}