/* ══════════════════════════════════════════════════════
   首頁首屏右欄影片（EXHIBIT 1）：先只放封面圖，點了才換成 YouTube 播放器（js/video-facade.js）。
   這樣首頁初次載入只多一張 WebP 封面，YouTube 的 JS／iframe 要訪客按下播放才下載。
   沒有 JS 時，封面就是一般連結，點了開 YouTube 新分頁。
   ══════════════════════════════════════════════════════ */

.video-facade {
  position: relative;
  margin-top: 16px;
  aspect-ratio: 16 / 9;
  background: var(--ink);
  overflow: hidden;
}

.video-facade__link,
.video-facade iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-facade__link img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s ease;
}

/* 播放鈕：品牌黃底＋深色三角形（封面是深色圖，深色鈕會被吃掉）（三角形用 --mk-* 同款 SVG 遮罩手法畫，不另載圖） */
.video-facade__play {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px 14px 18px;
  transform: translate(-50%, -50%);
  background: var(--highlight);
  color: var(--ink);
  font-family: var(--font-latin);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid var(--ink);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.video-facade__play::before {
  content: "";
  width: 18px;
  height: 18px;
  background-color: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 2.5 13.5 8 4 13.5Z' fill='black'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 2.5 13.5 8 4 13.5Z' fill='black'/%3E%3C/svg%3E") center / contain no-repeat;
}

.video-facade__link:hover .video-facade__play,
.video-facade__link:focus-visible .video-facade__play {
  background: var(--on-ink);
  color: var(--ink);
}

.video-facade__link:hover img {
  opacity: 0.92;
}

.video-facade__link:focus-visible {
  outline: 3px solid var(--on-ink);
  outline-offset: -3px;
}

@media (max-width: 767px) {
  .video-facade__play {
    padding: 10px 16px 10px 12px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .video-facade__link img,
  .video-facade__play {
    transition: none;
  }
}