/*
 * 教室画像ギャラリー（classroom_gallery）
 * 高さは CSS 変数、横幅は元画像のアスペクト比に合わせる。強制トリミングはしない。
 */
.acmp-gallery {
  position: relative;
  margin: 0;
  padding: 16px 0 24px;
  box-sizing: border-box;
}

.acmp-gallery__track {
  display: flex;
  justify-content: flex-start;
  gap: 12px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding: 0 0 8px;
}

/* 収まるときだけ中央。オーバーフロー時は左始まりを維持する */
.acmp-gallery__track--center {
  justify-content: center;
}

.acmp-gallery__track--overflow {
  justify-content: flex-start;
}

.acmp-gallery__track--representative-scroll::before,
.acmp-gallery__track--representative-scroll::after {
  content: "";
  flex: 0 0 var(--acmp-gallery-edge-space, 0px);
  pointer-events: none;
}

.acmp-gallery__item {
  position: relative;
  overflow: hidden;
  flex: 0 0 auto;
  scroll-snap-align: start;
  margin: 0;
  max-width: min(80vw, 900px);
}

.acmp-gallery__image {
  display: block;
  height: var(--acmp-gallery-height-pc, 320px) !important;
  width: auto !important;
  max-width: min(80vw, 900px);
  object-fit: contain;
}

.acmp-gallery__caption {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100% - 24px);
  margin: 0;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  box-sizing: border-box;
}

.acmp-gallery__nav {
  position: absolute;
  z-index: 2;
  top: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.42);
  color: #fff;
  font: 600 30px/1 sans-serif;
  cursor: pointer;
  transform: translateY(-50%);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.18);
  touch-action: manipulation;
}

.acmp-gallery__nav:hover,
.acmp-gallery__nav:focus-visible {
  background: rgba(0, 0, 0, 0.62);
}

.acmp-gallery__nav-icon {
  display: block;
  transform: translateY(-2px);
  pointer-events: none;
}

.acmp-gallery__nav[hidden],
.acmp-gallery__nav:disabled {
  display: none;
}

.acmp-gallery__nav--prev {
  left: 10px;
}

.acmp-gallery__nav--next {
  right: 10px;
}

@media (max-width: 767px) {
  .acmp-gallery__item {
    max-width: 85vw;
  }

  .acmp-gallery__image {
    height: var(--acmp-gallery-height-sp, 240px) !important;
    max-width: 85vw;
  }

  .acmp-gallery__nav {
    width: 44px;
    height: 44px;
    font-size: 32px;
  }

  .acmp-gallery__nav--prev {
    left: 6px;
  }

  .acmp-gallery__nav--next {
    right: 6px;
  }
}

/* 表示幅：記事幅は既存 .l-article に委ねる */
.single-classroom .acmp-area.acmp-gallery--content,
.single-classroom .acmp-area.acmp-gallery--full {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  box-sizing: border-box;
}

.single-classroom .acmp-area.acmp-gallery--content .acmp-gallery {
  max-width: var(--width_content, var(--swell-content-width, 1100px));
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}

.single-classroom .acmp-area.acmp-gallery--full .acmp-gallery {
  width: 100%;
  padding-left: 16px;
  padding-right: 16px;
}

.single-classroom .acmp-area.acmp-gallery--article .acmp-gallery {
  width: 100%;
}