/* ── LIGHTBOX (js/lightbox.js) ── */

.lightbox {
  --lb-px: 1rem;
  --lb-py: 3.5rem;
  position: fixed;
  inset: 0;
  z-index: 100000;
  overflow: hidden;
  background: rgba(10, 10, 10, 0.92);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.lightbox[hidden] {
  display: none;
}

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

html.lightbox-open {
  overflow: hidden;
}

.lightbox__img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  max-width: calc(100vw - 2 * var(--lb-px));
  max-height: calc(100vh - 2 * var(--lb-py));
  max-height: calc(100dvh - 2 * var(--lb-py));
  width: auto;
  height: auto;
  object-fit: contain;
}

.lightbox__btn {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease;
}

.lightbox__btn[hidden] {
  display: none;
}

.lightbox__btn:hover {
  background: rgba(255, 255, 255, 0.28);
}

.lightbox__btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.lightbox__close {
  top: 0.75rem;
  right: 0.75rem;
}

.lightbox__prev,
.lightbox__next {
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__prev {
  left: 0.75rem;
}

.lightbox__next {
  right: 0.75rem;
}

.lightbox__count {
  position: absolute;
  bottom: 1rem;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
  font-size: var(--text-small);
  color: rgba(255, 255, 255, 0.8);
}

@media (min-width: 768px) {
  .lightbox {
    --lb-px: 5rem;
    --lb-py: 4rem;
  }

  .lightbox__close {
    top: 1.25rem;
    right: 1.25rem;
  }

  .lightbox__prev {
    left: 1.25rem;
  }

  .lightbox__next {
    right: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lightbox {
    transition: none;
  }
}