.gallery-grid img {
  cursor: zoom-in;
}

.gallery-grid img:focus {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.lightbox[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: minmax(48px, 1fr) minmax(0, 900px) minmax(48px, 1fr);
  align-items: center;
  background: rgba(0, 0, 0, .94);
  padding: 64px 12px 48px;
}

.lightbox img {
  grid-column: 2;
  width: 100%;
  height: 100%;
  max-height: calc(100vh - 112px);
  object-fit: contain;
}

.lightbox-close,
.lightbox-arrow {
  position: absolute;
  border: 0;
  color: #fff;
  background: rgba(20, 20, 20, .78);
  cursor: pointer;
}

.lightbox-close {
  top: 14px;
  right: 16px;
  width: 48px;
  height: 48px;
  font-size: 2rem;
  line-height: 1;
}

.lightbox-arrow {
  top: 50%;
  translate: 0 -50%;
  width: 48px;
  height: 64px;
  font-size: 3rem;
  line-height: 1;
}

.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }

.lightbox-count {
  position: absolute;
  bottom: 16px;
  left: 50%;
  translate: -50% 0;
  color: #ddd;
  font-weight: 700;
}

.lightbox-open {
  overflow: hidden;
}

@media (max-width: 520px) {
  .lightbox {
    grid-template-columns: 42px minmax(0, 1fr) 42px;
    padding-inline: 4px;
  }

  .lightbox-arrow {
    width: 42px;
    background: rgba(0, 0, 0, .5);
  }

  .lightbox-prev { left: 2px; }
  .lightbox-next { right: 2px; }
}