/*
 * lightbox：構造と動きだけ
 * 受ける変数：--part-lightbox-bg（暗い幕）/ --part-lightbox-fg（文字）/ --part-lightbox-btn（ボタンの地）/ --part-focus-inverse
 */
.part-lightbox a[href],
.part-lightbox [data-lightbox-src] {
  cursor: zoom-in;
}

.part-lightbox__dialog {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: var(--part-lightbox-bg, rgba(12, 12, 12, 0.92));
  color: var(--part-lightbox-fg, #fff);
  overflow: hidden;
  touch-action: pan-y;
}

.part-lightbox__dialog:not([open]) {
  display: none;
}

.part-lightbox__dialog::backdrop {
  background: transparent;
}

html.part-lightbox-open {
  overflow: hidden;
}

.part-lightbox__figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 56px 16px 20px;
  box-sizing: border-box;
}

.part-lightbox__img {
  display: block;
  min-height: 0;
  max-width: min(100%, 1400px);
  max-height: calc(100% - 48px);
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.part-lightbox__caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 12px;
  max-width: 720px;
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: center;
}

.part-lightbox__caption[hidden] {
  display: none;
}

.part-lightbox__count {
  opacity: 0.7;
  font-variant-numeric: tabular-nums;
}

.part-lightbox__close,
.part-lightbox__nav {
  position: absolute;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--part-lightbox-btn, rgba(255, 255, 255, 0.14));
  color: inherit;
  cursor: pointer;
}

.part-lightbox__close:hover,
.part-lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.26);
}

.part-lightbox__close:focus-visible,
.part-lightbox__nav:focus-visible {
  outline: 2px solid var(--part-focus-inverse, #fff);
  outline-offset: 2px;
}

.part-lightbox__close {
  top: 10px;
  right: 10px;
}

.part-lightbox__close::before,
.part-lightbox__close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.part-lightbox__close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.part-lightbox__close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.part-lightbox__nav {
  top: 50%;
  margin-top: -24px;
}

.part-lightbox__nav[hidden] {
  display: none;
}

.part-lightbox__nav--prev {
  left: 10px;
}

.part-lightbox__nav--next {
  right: 10px;
}

.part-lightbox__nav::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 11px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
}

.part-lightbox__nav--prev::before {
  transform: translate(-30%, -50%) rotate(-135deg);
}

.part-lightbox__nav--next::before {
  transform: translate(-70%, -50%) rotate(45deg);
}