/* R07の定速フィルムマーキーとクリック時のiframeプレビューを担当する。
 * DOMContentLoaded後に同一6枚グループを複製し、transformだけで循環する。 */

.showcase {
  border-top: 1px solid var(--line-dark);
}

.showcase-heading {
  align-items: end;
  display: grid;
  gap: clamp(2rem, 8vw, 8rem);
  grid-template-columns: 1.15fr 0.85fr;
}

.showcase-stage {
  margin-top: clamp(3rem, 6vw, 5rem);
}

.showcase-viewport {
  overflow-x: hidden;
  overflow-y: hidden;
  padding: 1.4rem clamp(1.25rem, 4vw, 3rem) 2rem;
}

.showcase-track {
  --showcase-gap: clamp(1rem, 3vw, 2.4rem);
  align-items: stretch;
  display: flex;
  gap: var(--showcase-gap);
  transform: translate3d(0, 0, 0);
  touch-action: pan-y;
  will-change: transform;
}

.showcase-group {
  align-items: stretch;
  display: flex;
  flex: 0 0 auto;
  gap: var(--showcase-gap);
}

.work-card {
  background: var(--charcoal);
  border: 1px solid var(--line-dark);
  /* 横に流れる映画フィルムの1コマ幅を画面比で揃えるため必要。 */
  flex: 0 0 clamp(19rem, 49vw, 39rem);
}

.work-frame {
  aspect-ratio: 16 / 11;
  background: #090a0d;
  overflow: hidden;
  position: relative;
}

.work-frame img {
  object-fit: cover;
  transition: transform 0.32s var(--ease), opacity 0.32s ease;
  /* 作例画像の内在サイズをシネマ比率の枠へ合わせる。 */
  height: 100%;
  width: 100%;
}

.work-number {
  background: var(--gold);
  bottom: 0;
  color: var(--black);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.9rem;
  left: 0;
  padding: 0.45rem 0.8rem;
  position: absolute;
}

.work-copy {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.work-copy > p:first-child {
  color: var(--gold);
  font-size: 0.66rem;
  letter-spacing: 0.17em;
}

.work-copy h3 {
  margin-top: 0.75rem;
}

.work-copy h3 + p {
  margin-top: 1rem;
}

.work-actions {
  align-items: center;
  border-top: 1px solid var(--line-dark);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1rem;
}

.text-button,
.work-actions a {
  background: transparent;
  border: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  padding: 0.65rem 0;
  position: relative;
  transition: color 0.28s ease;
}

.text-button {
  color: var(--gold);
  overflow: hidden;
}

.work-actions a {
  color: var(--ivory);
}

.showcase-viewport.is-static {
  overflow-x: auto;
  scrollbar-color: var(--gold) var(--charcoal);
  scrollbar-width: thin;
}

.showcase-viewport.is-static .showcase-track {
  transform: none !important;
  will-change: auto;
}

.showcase-viewport.is-static [data-showcase-clone] {
  display: none;
}

.showcase-all-works {
  text-align: center;
}

.showcase-all-works .button {
  margin-top: 1rem;
}

.preview-dialog {
  background: transparent;
  border: 0;
  inset: 0;
  margin: 0;
  padding: clamp(0.75rem, 3vw, 2rem);
  position: fixed;
  /* ビューポート全体を覆うモーダル操作領域。 */
  height: 100%;
  max-height: none;
  max-width: none;
  width: 100%;
}

.preview-dialog::backdrop {
  background: rgba(7, 8, 11, 0.9);
}

.preview-shell {
  background: var(--charcoal);
  border: 1px solid var(--line-dark);
  inset: clamp(0.75rem, 3vw, 2rem);
  position: absolute;
}

.preview-shell header {
  align-items: center;
  border-bottom: 1px solid var(--line-dark);
  display: flex;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  position: relative;
  z-index: 2;
}

.preview-shell header div {
  align-items: center;
  display: flex;
  gap: 1rem;
}

.preview-shell header a,
.preview-shell header button {
  background: transparent;
  border: 0;
  color: var(--ivory);
  font-size: 0.76rem;
  padding: 0.55rem;
  transition: color 0.28s ease;
}

.preview-frame {
  inset: 4rem 0 0;
  position: absolute;
  z-index: 1;
}

.preview-frame iframe {
  border: 0;
  background: var(--ivory);
  /* iframeをモーダル内の表示領域へ完全に合わせる。 */
  height: 100%;
  width: 100%;
}

body.preview-open {
  overflow: hidden;
}