/* YouTube動画 — フロント（SEO: サムネイル先行・iframe は JS 注入） */

/*
 * 動画行のビューポート幅ブレイクアウト
 * テーマは .row > .col に直接出力することがあるため、親列を全幅化する
 */
.col:has(> .arc-youtube-showcase),
.col:has(> .wp-block-arc-editing-youtube-showcase) {
  flex: 0 0 100%;
  max-width: 100%;
  width: 100%;
  overflow: visible !important;
}

/* 動画行のビューポート幅ブレイクアウト用 — PC のみ親列 padding を解除 */
@media (min-width: 768px) {
  .col:has(> .arc-youtube-showcase),
  .col:has(> .wp-block-arc-editing-youtube-showcase) {
    padding-left: 0;
    padding-right: 0;
  }
}

.row:has(> .col > .arc-youtube-showcase),
.row:has(> .col > .wp-block-arc-editing-youtube-showcase) {
  overflow: visible !important;
}

.arc-youtube-showcase {
  --arc-ss-type-heading: clamp(1.5rem, 3.7vw, 2.1875rem);
  --arc-yt-card-radius: clamp(0.65rem, 1.6vw, 1rem);
  --arc-yt-card-gap: clamp(1rem, 2.4vw, 1.75rem);
  --arc-yt-pad-x: var(--arc-showcase-pad-x, clamp(1rem, 3vw, 2rem));
  --arc-yt-video-pad-x: clamp(1rem, 2.5vw, 1.75rem);
  --arc-yt-active-scale: 1.25;
  --arc-yt-desktop-gap: clamp(0.65rem, 1.5vw, 1rem);
  --arc-yt-desktop-transition: 1.8s;
  container-type: inline-size;
  color: var(--arc-yt-title-color, var(--arc-brand-dark, #2c2e36));
}

.arc-youtube-showcase .arc-youtube-showcase__heading.arc-split-story__heading {
  margin: 0 0 clamp(0.85rem, 2vw, 1.35rem);
  padding-bottom: 1.5rem;
  font-size: var(--arc-ss-type-heading);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--arc-yt-heading-color, var(--arc-ss-heading-color, var(--arc-brand-dark, #2c2e36)));
}

.arc-youtube-showcase__viewport {
  overflow: visible;
}

.arc-youtube-showcase__track {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--arc-yt-card-gap);
  width: 100%;
}

.arc-youtube-showcase__card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: clamp(1.7rem, 4vw, 2.5rem);
  min-width: 0;
}

.arc-youtube-showcase__media-wrap {
  position: relative;
  flex-shrink: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: var(--arc-yt-card-radius);
  overflow: hidden;
  background: #111;
  box-shadow: 0 0.25rem 0.9rem rgba(44, 46, 54, 0.1);
  transition: box-shadow var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1);
}

/* 自動再生なし: 拡大・全幅ブレイクアウトなし（通常グリッドのまま） */
/* PC: 動画行だけ画面幅まで広げ、余白は再生中カードが使う */
@media (min-width: 768px) {
  .arc-youtube-showcase .arc-youtube-showcase__heading.arc-split-story__heading {
    text-align: center;
  }

  .arc-youtube-showcase--no-autoplay .arc-youtube-showcase__viewport {
    width: 100%;
    max-width: 100%;
    margin-inline: 0;
    padding-inline: 0;
  }

  .arc-youtube-showcase:not(.arc-youtube-showcase--no-autoplay) .arc-youtube-showcase__viewport {
    width: 100vw;
    max-width: 100vw;
    margin-inline: calc(50% - 50vw);
    padding-inline: var(--arc-yt-video-pad-x);
  }

  .arc-youtube-showcase--desktop-rotate .arc-youtube-showcase__track {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--arc-yt-desktop-gap);
    width: 100%;
    will-change: transform;
    transition: transform var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1);
  }

  .arc-youtube-showcase--desktop-rotate .arc-youtube-showcase__card {
    --arc-yt-inactive-basis: calc((100cqw - 2 * var(--arc-yt-desktop-gap)) / 3.68);
    flex-grow: 0;
    flex-shrink: 0;
    flex-basis: var(--arc-yt-inactive-basis);
    width: var(--arc-yt-inactive-basis);
    max-width: var(--arc-yt-inactive-basis);
    transition:
      flex-grow var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1),
      flex-basis var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1),
      width var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1),
      max-width var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1),
      min-width var(--arc-yt-desktop-transition) cubic-bezier(0.22, 1, 0.36, 1);
  }

  /* 非再生は見出し幅基準で固定。残り幅はすべて再生中カードへ */
  .arc-youtube-showcase--desktop-rotate .arc-youtube-showcase__card.is-active {
    flex-grow: 1;
    flex-shrink: 1;
    flex-basis: 0;
    width: auto;
    min-width: calc(var(--arc-yt-inactive-basis) * var(--arc-yt-active-scale));
    max-width: none;
  }

  .arc-youtube-showcase--desktop-rotate .arc-youtube-showcase__card.is-active .arc-youtube-showcase__media-wrap {
    box-shadow: 0 0.85rem 2rem rgba(44, 46, 54, 0.22);
  }

  .arc-youtube-showcase--desktop-rotate .arc-youtube-showcase__card:not(.is-active) .arc-youtube-showcase__media-wrap {
    box-shadow: 0 0.2rem 0.75rem rgba(44, 46, 54, 0.08);
  }
}

.arc-youtube-showcase__media {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}

.arc-youtube-showcase__thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.arc-youtube-showcase__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  border: none;
  background: rgba(0, 0, 0, 0.18);
  cursor: pointer;
  z-index: 2;
  transition: background 0.25s ease;
}

.arc-youtube-showcase__play-icon {
  display: block;
  width: clamp(2.75rem, 8vw, 4rem);
  height: clamp(2.75rem, 8vw, 4rem);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.42);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.22);
  position: relative;
}

.arc-youtube-showcase__play-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0.55rem 0 0.55rem 0.95rem;
  border-color: transparent transparent transparent rgba(255, 255, 255, 0.88);
}

.arc-youtube-showcase__media,
.arc-youtube-showcase__thumb,
.arc-youtube-showcase__title {
  cursor: pointer;
}

.arc-youtube-showcase__card.is-youtube-preview .arc-youtube-showcase__play {
  display: none;
}

.arc-youtube-showcase__iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}

/* プレビュー時: iframe をわずかに拡大して YouTube UI をクロップ（黒バーは使わない） */
.arc-youtube-showcase__card.is-youtube-preview .arc-youtube-showcase__media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.arc-youtube-showcase__card.is-youtube-preview .arc-youtube-showcase__iframe {
  pointer-events: none;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.arc-youtube-showcase__title {
  margin: 0;
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.01em;
}

/* テーマ thewrap-main.css の h3 a:hover 赤背景を無効化 */
.arc-youtube-showcase__title-link,
.arc-youtube-showcase h3 .arc-youtube-showcase__title-link,
.arc-youtube-showcase h4 .arc-youtube-showcase__title-link,
.arc-youtube-showcase__title-link:link,
.arc-youtube-showcase__title-link:visited,
.arc-youtube-showcase__title-link:hover,
.arc-youtube-showcase__title-link:focus,
.arc-youtube-showcase__title-link:focus-visible,
.arc-youtube-showcase__title-link:active,
.arc-youtube-showcase__card:hover .arc-youtube-showcase__title-link {
  color: inherit;
  text-decoration: none;
  border-bottom: none;
  box-shadow: none;
  background-color: transparent;
  background-image: none;
}

.arc-youtube-showcase.arc-split-story--colorful {
  --arc-ss-heading-color: var(--arc-yt-heading-color, var(--arc-brand-dark, #2c2e36));
  --arc-ss-text-color: var(--arc-yt-title-color, var(--arc-brand-dark, #2c2e36));
}

@media (hover: hover) {
  .arc-youtube-showcase__media-wrap:hover .arc-youtube-showcase__play {
    background: rgba(0, 0, 0, 0.28);
  }

  .arc-youtube-showcase__media-wrap:hover .arc-youtube-showcase__play-icon {
    background: rgba(0, 0, 0, 0.52);
  }
}

/* 全画面モーダル（クリック時の本再生） */
.arc-youtube-showcase-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 2rem);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.arc-youtube-showcase-lightbox.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.arc-youtube-showcase-lightbox__backdrop {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(20, 22, 28, 0.88);
  cursor: pointer;
}

.arc-youtube-showcase-lightbox__panel {
  position: relative;
  z-index: 1;
  width: min(72rem, 100%);
  max-height: calc(100vh - 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.arc-youtube-showcase-lightbox__close {
  position: absolute;
  top: -0.25rem;
  right: 0;
  z-index: 2;
  width: 2.75rem;
  height: 2.75rem;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
}

.arc-youtube-showcase-lightbox__close:hover,
.arc-youtube-showcase-lightbox__close:focus-visible {
  background: rgba(255, 255, 255, 0.24);
}

.arc-youtube-showcase-lightbox__video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--arc-yt-card-radius);
  overflow: hidden;
  background: #000;
  box-shadow: 0 1.25rem 3rem rgba(0, 0, 0, 0.45);
}

.arc-youtube-showcase-lightbox__video .arc-youtube-showcase__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: none;
}

.arc-youtube-showcase-lightbox__title {
  margin: 0;
  color: #fbf9ef;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  font-weight: 700;
  line-height: 1.45;
}

body.arc-youtube-showcase-lightbox-open {
  overflow: hidden;
}

@media (min-width: 900px) {
  .arc-youtube-showcase__track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 768px) and (max-width: 899.98px) {
  .arc-youtube-showcase__track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767.98px) {
  .arc-youtube-showcase__track {
    grid-template-columns: 1fr;
    /* ブログブロック（.arc-blog）モバイル1列時の row-gap と同じ */
    gap: calc(clamp(1.25rem, 3vw, 2rem) + 2.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .arc-youtube-showcase__play,
  .arc-youtube-showcase__media-wrap,
  .arc-youtube-showcase__card,
  .arc-youtube-showcase--desktop-rotate .arc-youtube-showcase__track {
    transition: none;
    animation: none;
  }
}