/* ===== 資料ダウンロード アーカイブ ===== */
.doc_down_archive {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

/* ----- カテゴリーナビ ----- */
.doc_down_archive__cat_nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 32px;
}

.doc_down_archive__cat_btn {
  display: inline-block;
  padding: 8px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  color: #169442;
  border: 2px solid #169442;
  border-radius: 30px;
  background: #fff;
  transition: background 0.2s, color 0.2s;
}

.doc_down_archive__cat_btn:hover,
.doc_down_archive__cat_btn.is-active {
  background: #169442;
  color: #fff;
}

.doc_down_archive__title {
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}

/* ----- カードグリッド（横3列） ----- */
.doc_down_archive__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

/* ----- カード ----- */
.doc_down_card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.3s, transform 0.3s;
  text-decoration: none;
  color: inherit;
}

.doc_down_card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transform: translateY(-3px);
}

/* サムネイル */
.doc_down_card__thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  overflow: hidden;
  background: #f0f0f0;
}

.doc_down_card__thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.doc_down_card__no_image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: #999;
  background: #f5f5f5;
}

/* カード本文 */
.doc_down_card__body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.doc_down_card__cat {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: #169442;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 8px;
  align-self: flex-start;
}

.doc_down_card__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
  flex: 1;
}

.doc_down_card__date {
  font-size: 0.8125rem;
  color: #888;
}

/* ----- ページネーション ----- */
.doc_down_archive__pagination {
  margin-top: 50px;
}

.doc_down_archive__pagination .nav-links {
  display: flex;
  justify-content: center;
  gap: 6px;
}

.doc_down_archive__pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border-radius: 4px;
  font-size: 0.875rem;
  text-decoration: none;
  color: #333;
  background: #f0f0f0;
  transition: background 0.2s, color 0.2s;
}

.doc_down_archive__pagination .page-numbers.current {
  background: #169442;
  color: #fff;
}

.doc_down_archive__pagination .page-numbers:hover:not(.current) {
  background: #ddd;
}

/* 空メッセージ */
.doc_down_archive__empty {
  text-align: center;
  color: #666;
  padding: 60px 0;
}

/* ----- レスポンシブ ----- */
@media (max-width: 768px) {
  .doc_down_archive__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .doc_down_archive__title {
    font-size: 1.375rem;
    margin-bottom: 24px;
  }
}

@media (max-width: 480px) {
  .doc_down_archive__grid {
    grid-template-columns: 1fr;
  }
}