/* ===== Photo Gallery Tiles ===== */
.pgt {
  --pgt-cols-pc: 5;
  --pgt-cols-tab: 4;
  --pgt-cols-sp: 3;
  --pgt-gap: 4px;
  --pgt-key: #72184b;
  --pgt-tab-bg: #ffffff;
  --pgt-tab-color: var(--pgt-key);
  --pgt-tab-active-bg: var(--pgt-key);
  --pgt-tab-active-color: #ffffff;
  --pgt-tile-bg: #f2f2f2;
  margin: 0 0 2em;
}

/* --- タブ --- */
.pgt-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 0 0 20px;
}
.pgt-tab {
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  padding: 8px 20px;
  border: 1px solid var(--pgt-key);
  border-radius: 999px;
  background: var(--pgt-tab-bg);
  color: var(--pgt-tab-color);
  font: inherit;
  font-size: 14px;
  line-height: 1.4;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background-color .2s, color .2s;
}
.pgt-tab:focus-visible {
  background: var(--pgt-key);
  color: #fff;
  outline: none;
}
@media (hover: hover) {
  .pgt-tab:hover {
    background: var(--pgt-key);
    color: #fff;
  }
}
.pgt-tab.is-active {
  background: var(--pgt-tab-active-bg);
  color: var(--pgt-tab-active-color);
}

/* --- タイル --- */
.pgt-grid {
  display: grid;
  grid-template-columns: repeat(var(--pgt-cols-pc), minmax(0, 1fr));
  gap: var(--pgt-gap);
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}
.pgt-item {
  position: relative;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--pgt-tile-bg);
  animation: pgt-fade .35s ease;
}
.pgt-item::before { content: none !important; } /* テーマのリスト装飾を消す */
.pgt-item.is-hidden { display: none; }

.pgt-link {
  display: block;
  width: 100%;
  height: 100%;
  cursor: zoom-in;
}
.pgt-link::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background-color .25s;
  pointer-events: none;
}
.pgt-img {
  display: block;
  width: 100% !important;
  height: 100% !important;
  max-width: none !important;
  object-fit: cover;
  transition: transform .4s ease;
}
@media (hover: hover) {
  .pgt-link:hover .pgt-img { transform: scale(1.05); }
  .pgt-link:hover::after { background: rgba(0, 0, 0, .12); }
}

@keyframes pgt-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* タブレット */
@media screen and (max-width: 1024px) {
  .pgt-grid { grid-template-columns: repeat(var(--pgt-cols-tab), minmax(0, 1fr)); }
}
/* スマホ */
@media screen and (max-width: 782px) {
  .pgt-grid { grid-template-columns: repeat(var(--pgt-cols-sp), minmax(0, 1fr)); }

  /* タブは改行せず横スクロール */
  .pgt-tabs {
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 6px;
    margin-bottom: 14px;
    padding: 2px 1px 4px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    scroll-snap-type: x proximity;
    scrollbar-width: none;            /* Firefox */
  }
  .pgt-tabs::-webkit-scrollbar { display: none; } /* Chrome / Safari */

  /* 収まるときは中央寄せ、はみ出すときは左端から */
  .pgt-tabs > .pgt-tab:first-child { margin-left: auto; }
  .pgt-tabs > .pgt-tab:last-child  { margin-right: auto; }

  .pgt-tab {
    flex: 0 0 auto;
    white-space: nowrap;
    scroll-snap-align: start;
    padding: 6px 14px;
    font-size: 13px;
  }

  /* 続きがある側をうっすらフェードさせて、スクロールできることを伝える */
  .pgt-tabs.can-right {
    -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 28px), transparent);
            mask-image: linear-gradient(to right, #000 calc(100% - 28px), transparent);
  }
  .pgt-tabs.can-left {
    -webkit-mask-image: linear-gradient(to right, transparent, #000 28px);
            mask-image: linear-gradient(to right, transparent, #000 28px);
  }
  .pgt-tabs.can-left.can-right {
    -webkit-mask-image: linear-gradient(to right, transparent, #000 28px, #000 calc(100% - 28px), transparent);
            mask-image: linear-gradient(to right, transparent, #000 28px, #000 calc(100% - 28px), transparent);
  }
}

/* --- ライトボックス --- */
.pgt-lb {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 8, 9, .92);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
}
.pgt-lb.is-open { opacity: 1; visibility: visible; }
.pgt-lb-figure {
  margin: 0;
  max-width: 92vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.pgt-lb-img {
  display: block;
  max-width: 92vw;
  max-height: 80vh;
  width: auto;
  height: auto;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}
.pgt-lb-caption {
  margin-top: 12px;
  color: #fff;
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}
.pgt-lb-caption:empty { display: none; }
.pgt-lb-counter {
  position: absolute;
  top: 18px;
  left: 20px;
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
  letter-spacing: .1em;
}
.pgt-lb-btn {
  position: absolute;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  padding: 0;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font-size: 0;
  cursor: pointer;
  transition: background-color .2s;
}
.pgt-lb-btn:hover,
.pgt-lb-btn:focus-visible { background: var(--pgt-key); outline: none; }
.pgt-lb-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
}
.pgt-lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.pgt-lb-next { right: 16px; top: 50%; transform: translateY(-50%); }
.pgt-lb-prev::before { transform: translate(-30%, -50%) rotate(-135deg); }
.pgt-lb-next::before { transform: translate(-70%, -50%) rotate(45deg); }
.pgt-lb-close { top: 12px; right: 12px; }
.pgt-lb-close::before,
.pgt-lb-close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 2px;
  border: 0;
  background: currentColor;
}
.pgt-lb-close::before { transform: translate(-50%, -50%) rotate(45deg); }
.pgt-lb-close::after  { transform: translate(-50%, -50%) rotate(-45deg); }
.pgt-lb.is-single .pgt-lb-prev,
.pgt-lb.is-single .pgt-lb-next { display: none; }

@media screen and (max-width: 782px) {
  .pgt-lb-prev, .pgt-lb-next { width: 40px; height: 40px; }
  .pgt-lb-prev { left: 6px; }
  .pgt-lb-next { right: 6px; }
}

body.pgt-lb-lock { overflow: hidden; }

.pgt-empty {
  padding: 1em;
  border: 1px dashed #ccc;
  color: #666;
  font-size: 14px;
}