.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

.lightbox img {
  max-height: 70vh;
}

.lightbox[hidden] {
  display: none;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  background: #fff;
  font-size: 1.4rem;
  cursor: pointer;
}