/* ============================================
   α Personal Training LAB - Column Listing / Card Grid
   ============================================
   専門コラム一覧・カテゴリーアーカイブ・著者アーカイブは .aptl-column-page、
   記事詳細の関連記事は .aptl-single-page の中でカードグリッドを再利用する。
   どちらも body / main / p / h1-h3 / ul / li など汎用要素には触れない。
   ============================================ */

.aptl-column-page,
.aptl-single-page .related-posts {
  font-family: var(--font-sans);
}

.aptl-column-page {
  /* 下方向の余白は、LPと共通の固定CTA分を確保する body の padding-bottom(styles.css側)
     に任せる。ここで独自の追加余白は指定しない(二重確保を避ける)。 */
  padding: 140px 20px 40px;
}

.aptl-column-page__container {
  max-width: 1080px;
  margin: 0 auto;
}

.aptl-column-page__title {
  font-family: var(--font-jp);
  font-size: 26px;
  text-align: center;
  color: var(--color-text);
  margin-bottom: 16px;
}

.aptl-column-page__intro {
  max-width: 720px;
  margin: 0 auto 40px;
  text-align: center;
  font-size: 14px;
  line-height: 2;
  color: var(--color-text-sub);
}

.aptl-column-page__cats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 0 40px;
  padding: 0;
  list-style: none;
}

.aptl-column-page__cats li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.aptl-column-page__cats a {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--color-text);
  background: #fff;
  text-decoration: none;
  transition: all 0.25s;
}

.aptl-column-page__cats a:hover,
.aptl-column-page__cats a.is-current {
  background: var(--color-main);
  border-color: var(--color-main);
  color: #fff;
}

.aptl-column-page__grid,
.aptl-single-page .related-posts__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

@media (min-width: 768px) {
  .aptl-column-page__grid,
  .aptl-single-page .related-posts__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .aptl-column-page__grid,
  .aptl-single-page .related-posts__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- Pagination ---------- */
.aptl-column-page__pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.aptl-column-page__pagination a,
.aptl-column-page__pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  font-size: 13px;
  color: var(--color-text);
  background: #fff;
  text-decoration: none;
}

.aptl-column-page__pagination a:hover {
  border-color: var(--color-main);
  color: var(--color-main);
}

.aptl-column-page__pagination .current {
  background: var(--color-main);
  border-color: var(--color-main);
  color: #fff;
}

/* ---------- Card (shared: column list / archives / related posts) ---------- */
.aptl-column-page .column-card,
.aptl-single-page .column-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-align: left;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin: 0;
  padding: 0;
}

.aptl-column-page .column-card:hover,
.aptl-single-page .column-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.aptl-column-page .column-card__image,
.aptl-single-page .column-card__image {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--color-bg-sub);
  overflow: hidden;
}

.aptl-column-page .column-card__badge,
.aptl-single-page .column-card__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  display: inline-block;
  padding: 4px 10px;
  margin: 0;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #fff;
  background: var(--color-gold);
  border-radius: 4px;
  z-index: 1;
}

.aptl-column-page .column-card__image img,
.aptl-single-page .column-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  margin: 0;
  max-width: 100%;
}

.aptl-column-page .column-card__body,
.aptl-single-page .column-card__body {
  padding: 16px 18px 20px;
}

.aptl-column-page .column-card__category,
.aptl-single-page .column-card__category {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  font-weight: 500;
  margin-bottom: 8px;
  text-decoration: none;
}

.aptl-column-page .column-card__title,
.aptl-single-page .column-card__title {
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 10px;
  letter-spacing: 0.03em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-weight: 500;
}

.aptl-column-page .column-card__title a,
.aptl-single-page .column-card__title a {
  color: inherit;
  text-decoration: none;
}

.aptl-column-page .column-card__title a:hover,
.aptl-single-page .column-card__title a:hover {
  color: var(--color-blue);
}

.aptl-column-page .column-card__date,
.aptl-single-page .column-card__date {
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
}

.aptl-column-page .column-card__author,
.aptl-single-page .column-card__author {
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  margin-left: 8px;
}

.aptl-column-page .column-card__author a,
.aptl-single-page .column-card__author a {
  color: inherit;
  text-decoration: none;
}

.aptl-column-page .column-card__excerpt,
.aptl-single-page .column-card__excerpt {
  font-size: 12px;
  line-height: 1.8;
  color: var(--color-text-sub);
  margin: 8px 0 0;
}