.bos-streams {
  --bos-accent: #ff66c4;
  --bos-dark: #11131a;
  --bos-panel: #1b1e28;
  --bos-text: #ffffff;
  --bos-muted: #c8cad3;
  --bos-slide-width: 78%;
  --bos-slide-gap: 22px;
  width: min(100%, 1180px);
  margin-inline: auto;
}

.bos-streams__heading {
  margin-bottom: 1rem;
  text-align: center;
}

.bos-streams__title {
  margin-bottom: .35rem;
}

.bos-streams__lead {
  margin: 0;
}

.bos-stream-slider {
  position: relative;
  color: var(--bos-text);
}

/*
 * 左右を少し切って見せることで、次の配信が存在することを伝える。
 * trackの左右paddingとslide幅はJSの中央位置計算にも反映される。
 */
.bos-stream-slider__viewport {
  overflow: hidden;
  padding-block: 12px 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(17, 19, 26, .96), rgba(17, 19, 26, .72));
  box-shadow: 0 14px 40px rgba(0, 0, 0, .2);
  touch-action: pan-y;
  cursor: grab;
}

.bos-stream-slider__viewport:active {
  cursor: grabbing;
}

.bos-stream-slider__track {
  display: flex;
  gap: var(--bos-slide-gap);
  padding-inline: calc((100% - var(--bos-slide-width)) / 2);
  transform: translate3d(0, 0, 0);
  transition: transform 460ms cubic-bezier(.22, .61, .36, 1);
  will-change: transform;
}

.bos-stream-slider__slide {
  flex: 0 0 var(--bos-slide-width);
  min-width: 0;
  overflow: hidden;
  border-radius: 16px;
  background: var(--bos-panel);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .28);
  opacity: .48;
  transform: scale(.94);
  transition:
    opacity 360ms ease,
    transform 460ms cubic-bezier(.22, .61, .36, 1),
    box-shadow 360ms ease;
}

.bos-stream-slider__slide.is-active {
  z-index: 2;
  opacity: 1;
  transform: scale(1);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .38);
}

.bos-stream-slider__slide:not(.is-active) {
  cursor: pointer;
}

.bos-stream-slider__player {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.bos-stream-slider__player iframe {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.bos-stream-slider__loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--bos-muted);
  font-size: .9rem;
  letter-spacing: .08em;
}

.bos-stream-slider__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1rem;
}

.bos-stream-slider__name {
  overflow: hidden;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bos-stream-slider__link {
  flex: 0 0 auto;
  padding: .45rem .8rem;
  border-radius: 999px;
  background: var(--bos-accent);
  color: #fff !important;
  font-size: .85rem;
  font-weight: 700;
  text-decoration: none !important;
}

.bos-stream-slider__button {
  position: absolute;
  top: 50%;
  z-index: 5;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%;
  background: rgba(0, 0, 0, .76);
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
  backdrop-filter: blur(8px);
}


.bos-stream-slider__icon {
  display: block;
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.bos-stream-slider__button--prev { left: 20px; }
.bos-stream-slider__button--next { right: 20px; }

.bos-stream-slider__button:hover,
.bos-stream-slider__button:focus-visible {
  background: var(--bos-accent);
}

.bos-stream-slider__button:focus-visible,
.bos-stream-slider__dot:focus-visible,
.bos-stream-slider__link:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

.bos-stream-slider__dots {
  display: flex;
  justify-content: center;
  gap: .55rem;
  padding-top: .65rem;
}

.bos-stream-slider__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #b7b7bd;
  cursor: pointer;
}

.bos-stream-slider__dot[aria-current="true"] {
  background: var(--bos-accent);
  transform: scale(1.25);
}

@media (max-width: 767px) {
  .bos-streams {
    --bos-slide-width: 84%;
    --bos-slide-gap: 12px;
  }

  .bos-stream-slider__viewport {
    margin-inline: -12px;
    padding-block: 8px 14px;
    border-radius: 12px;
  }

  .bos-stream-slider__slide {
    border-radius: 12px;
  }

  .bos-stream-slider__button {
    width: 38px;
    height: 38px;
    font-size: 1.7rem;
  }

  .bos-stream-slider__button--prev { left: 15px; }
  .bos-stream-slider__button--next { right: 15px; }
  .bos-stream-slider__meta { padding: .7rem .8rem; }
  .bos-stream-slider__link { padding: .4rem .68rem; }
}

@media (prefers-reduced-motion: reduce) {
  .bos-stream-slider__track,
  .bos-stream-slider__slide {
    transition: none;
  }
}