.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 32px;
  background: rgba(7, 12, 10, .92);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__image {
  display: block;
  width: auto;
  height: auto;
  max-width: min(92vw, 1280px);
  max-height: 82vh;
  object-fit: contain;
  box-shadow: 0 22px 70px rgba(0, 0, 0, .45);
  transform: scale(.97);
  transition: transform .25s ease;
}

.lightbox.is-open .lightbox__image { transform: scale(1); }

.lightbox__close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, .7);
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font: 28px/1 var(--sans);
}

.lightbox__close:hover,
.lightbox__close:focus-visible { background: var(--gold); border-color: var(--gold); color: var(--ink); }

main img { cursor: zoom-in; }

@media (max-width: 800px) {
  .lightbox { padding: 20px; }
  .lightbox__image { max-width: 100%; max-height: 78vh; }
  .lightbox__close { top: 12px; right: 14px; }
}