/* ============================================================
   archive-case.css
   事例アーカイブ + 事例カード共通スタイル
   対象: post-type-archive-case / singular-case（関連セクション）
============================================================ */

.post-type-archive-case .site-body,
.archive.tax-case-type .site-body {
  margin-top: 0;
  padding: 0 !important;
}

.post-type-archive-case .main-section,
.archive.tax-case-type .main-section {
  margin: 0;
}

/* ============================================================
   case-archive：アーカイブレイアウト
============================================================ */
.case-archive {
  padding: calc(20 / 16 * 1rem) 0 calc(70 / 16 * 1rem);
  opacity: 1;
}

@media (min-width: 768px) {
  .case-archive {
    padding: calc(30 / 16 * 1rem) 0 calc(160 / 16 * 1rem);
  }
}

.archive-header-title {
  margin-top: calc(20 / 16 * 1rem);
}

@media (min-width: 768px) {
  .archive-header-title {
    margin-top: calc(28 / 16 * 1rem);
  }
}

/* ============================================================
   case-archive-filter：タブフィルター
============================================================ */
.case-archive-filter {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: calc(4 / 16 * 1rem);
}

.case-archive-filter__btn {
  background-color: var(--color-white);
  border: calc(2 / 16 * 1rem) solid var(--color-blue);
  color: var(--color-blue);
  font-size: calc(14 / 16 * 1rem);
  font-weight: 700;
  line-height: calc(20 / 14);
  border-radius: calc(4 / 16 * 1rem);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.3s,
    color 0.3s;
  width: calc(190 / 16 * 1rem);
  width: calc(168 / 375 * 100vw);
  height: calc(36 / 16 * 1rem);
}

.case-archive-filter__btn.is-active,
.case-archive-filter__btn:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
}

@media (max-width: 374px) {
  .case-archive-filter__btn {
    width: calc(166 / 375 * 100vw);
    height: calc(31.5 / 375 * 100vw);
    font-size: calc(12.25 / 375 * 100vw);
  }
}

@media (min-width: 536px) {
  .case-archive-filter__btn {
    width: calc(190 / 16 * 1rem);
  }
}

@media (min-width: 768px) {
  .case-archive-filter {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: calc(8 / 16 * 1rem) calc(4 / 16 * 1rem);
  }

  .case-archive-filter__btn {
    font-size: calc(14 / 16 * 1rem);
    width: calc(175 / 768 * 100vw);
    max-width: 228px;
  }
}

@media (min-width: 1200px) {
  .case-archive-filter {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: calc(15 / 16 * 1rem) calc(4 / 16 * 1rem);
  }
  .case-archive-filter__btn {
    font-size: calc(14 / 16 * 1rem);
    width: calc(224 / 16 * 1rem);
    height: calc(48 / 16 * 1rem);
  }
}

/* ============================================================
   case-card-grid：共通グリッドレイアウト
============================================================ */
.case-card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(24 / 16 * 1rem);
}

@media (min-width: 768px) {
  .case-card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: calc(40 / 16 * 1rem) calc(29 / 16 * 1rem);
  }
}

/* アーカイブのmargin-top */
.case-archive__grid {
  margin-top: calc(20 / 16 * 1rem);
}

@media (min-width: 768px) {
  .case-archive__grid {
    margin-top: calc(27 / 16 * 1rem);
  }
}

/* ============================================================
   case-card__*：カード共通スタイル
============================================================ */
.case-card__item {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.3s;
}

.case-card__item:hover {
  opacity: 0.8;
}

.case-card__img {
  transition: transform 0.5s ease;
}

.case-card__item:hover .case-card__img {
  transform: scale(1.05);
}

.case-card__img-wrap {
  border-radius: calc(8 / 16 * 1rem);
  overflow: hidden;
}

.case-card__img {
  width: 100%;
  aspect-ratio: 360 / 216;
  object-fit: cover;
  display: block;
}

.case-card__img--none {
  background-color: var(--color-gray);
}

.case-card__body {
  margin-top: calc(12 / 16 * 1rem);
}

.case-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.case-card__term {
  font-size: calc(14 / 16 * 1rem);
  font-weight: 700;
  line-height: calc(17 / 12);
  color: var(--color-blue);
  padding: calc(3 / 16 * 1rem) calc(11 / 16 * 1rem) calc(2 / 16 * 1rem);
  border: 0.0625rem solid var(--color-blue);
}

.case-card__date {
  font-family: var(--open-sans);
  font-size: calc(14 / 16 * 1rem);
  font-weight: 400;
  line-height: calc(19 / 14);
  color: #666666;
}

.case-card__name {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-black);
  margin: calc(4 / 16 * 1rem) 0 0;
}

@media (min-width: 768px) {
  .case-card__body {
    margin-top: calc(8 / 16 * 1rem);
  }

  .case-card__term {
    font-size: calc(12 / 16 * 1rem);
    padding: 0 calc(11 / 16 * 1rem) calc(2 / 16 * 1rem);
  }

  .case-card__name {
    margin-top: calc(8 / 16 * 1rem);
  }
}

/* ページネーション非表示（「すべて見る」ボタンで代替） */
.post-type-archive-case .navigation.pagination,
.tax-case-type .navigation.pagination {
  display: none;
}

/* case-type タクソノミーページ：archive-header-title を sr-only */
.tax-case-type .archive-header-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   スクロールアニメーション（Intersection Observer 連動）
   html.js クラスが付与されているとき（JS 有効時）のみ適用
   prefers-reduced-motion: reduce の場合は無効化
============================================================ */
@media (prefers-reduced-motion: no-preference) {
  /* --- フィルターボタン（JS でスタッガー遅延を上書き） --- */
  html.js .case-archive-filter__btn {
    opacity: 0;
    transform: translateY(14px);
    transition:
      opacity 0.5s ease,
      transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
      background-color 0.3s,
      color 0.3s;
  }
  html.js .case-archive-filter__btn.is-in-view {
    opacity: 1;
    transform: none;
  }

  /* --- カード（JS でスタッガー遅延を上書き） --- */
  html.js .case-card__item {
    opacity: 0;
    transform: translateY(40px);
    transition:
      opacity 0.6s ease,
      transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
      opacity 0.3s; /* hover の opacity は上書きされるが is-in-view 後に有効 */
  }
  html.js .case-card__item.is-in-view {
    opacity: 1;
    transform: none;
  }
  /* is-in-view 後の hover */
  html.js .case-card__item.is-in-view:hover {
    opacity: 0.8;
  }
}

/* ============================================================
   「すべて見る」ボタン
============================================================ */
.case-card__item--hidden {
  display: none;
}

.case-archive__more {
  margin-top: calc(30 / 16 * 1rem);
  text-align: center;
}

.case-archive__btn {
  display: inline-flex;
  align-items: center;
  gap: calc(8 / 16 * 1rem);
  padding: calc(10 / 16 * 1rem) calc(37 / 16 * 1rem) calc(8 / 16 * 1rem)
    calc(42 / 16 * 1rem);
  background-color: var(--color-white);
  border: 0.0625rem solid var(--color-blue);
  color: var(--color-blue);
  font-size: calc(17 / 16 * 1rem);
  font-weight: 700;
  cursor: pointer;
  transition:
    background-color 0.3s,
    border-color 0.3s,
    color 0.3s;
  border-radius: 0.5rem;
}

.case-archive__btn:hover {
  background-color: var(--color-blue);
  border-color: var(--color-white);
  color: var(--color-white);
}

.case-archive__btn-icon {
  width: 1rem;
}

.case-archive__btn-circle {
  fill: var(--color-blue);
  transition: fill 0.3s;
}

.case-archive__btn-plus {
  stroke: var(--color-white);
  transition: stroke 0.3s;
}

.case-archive__btn:hover .case-archive__btn-circle {
  fill: var(--color-white);
}

.case-archive__btn:hover .case-archive__btn-plus {
  stroke: var(--color-blue);
}

@media (min-width: 768px) {
  .case-archive__more {
    margin-top: calc(40 / 16 * 1rem);
  }
  .case-archive__btn {
    font-size: 1rem;
    padding: calc(14 / 16 * 1rem) calc(67 / 16 * 1rem) calc(14 / 16 * 1rem)
      calc(77 / 16 * 1rem);
    gap: calc(11 / 16 * 1rem);
  }
  .case-archive__btn-icon {
    width: 1.125rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html.js .case-archive__btn {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity 0.5s ease,
      transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
      background-color 0.3s,
      border-color 0.3s,
      color 0.3s;
  }
  html.js .case-archive__btn.is-in-view {
    opacity: 1;
    transform: none;
  }
}