@charset "UTF-8";

/* ===============================================
   コラム一覧ページ用スタイル
   =============================================== */

/* フィルターバナー */
.filter-banner {
  background-color: #eff6ff;
  border-left: 4px solid #2563eb;
  padding: 16px 0;
  margin-bottom: 40px;
}

.filter-banner .inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.filter-banner__text {
  margin: 0;
  font-size: 1.5rem;
  color: #1e40af;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-banner__label {
  font-weight: 400;
}

.filter-banner__tag {
  font-weight: 700;
  color: #2563eb;
}

.filter-banner__clear {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 1.4rem;
  font-weight: 500;
  color: #374151;
  background-color: #fff;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.filter-banner__clear:hover {
  background-color: #f3f4f6;
  border-color: #9ca3af;
  color: #111827;
}

@media only screen and (max-width: 768px) {
  .filter-banner {
    padding: 12px 0;
    margin-bottom: 30px;
  }

  .filter-banner .inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .filter-banner__text {
    font-size: 1.4rem;
  }

  .filter-banner__clear {
    font-size: 1.3rem;
    padding: 6px 12px;
  }
}

/* コラムセクション */
.columns-section {
  padding: 60px 0 100px;
  background-color: #fff;
}

@media only screen and (max-width: 768px) {
  .columns-section {
    padding: 40px 0 60px;
  }
}

/* カードグリッド */
.columns-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 60px;
}

@media only screen and (max-width: 1200px) {
  .columns-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }
}

@media only screen and (max-width: 960px) {
  .columns-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media only screen and (max-width: 600px) {
  .columns-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* コラムカード */
.column-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.column-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.column-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.column-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: #e5e7eb;
  position: relative;
}

.column-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.column-card:hover .column-card__image img {
  transform: scale(1.05);
}

.column-card__content {
  padding: 20px;
}

@media only screen and (max-width: 768px) {
  .column-card__content {
    padding: 15px;
  }
}

.column-card__title {
  margin: 0 0 12px;
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.5;
  color: #111827;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media only screen and (max-width: 768px) {
  .column-card__title {
    font-size: 1.5rem;
    margin-bottom: 10px;
  }
}

.column-card__excerpt {
  margin: 0 0 15px;
  font-size: 1.4rem;
  line-height: 1.6;
  color: #6b7280;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media only screen and (max-width: 768px) {
  .column-card__excerpt {
    font-size: 1.3rem;
    margin-bottom: 12px;
  }
}

.column-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 20px 20px;
}

@media only screen and (max-width: 768px) {
  .column-card__tags {
    padding: 0 15px 15px;
  }
}

.column-card__tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 1.2rem;
  color: #6b7280;
  background-color: #f3f4f6;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.column-card__tag:hover {
  color: #fff;
  background-color: #2563eb;
  transform: translateY(-1px);
}

@media only screen and (max-width: 768px) {
  .column-card__tag {
    padding: 3px 8px;
    font-size: 1.1rem;
  }
}

/* 記事なしメッセージ */
.no-articles {
  padding: 80px 20px;
  text-align: center;
  font-size: 1.6rem;
  color: #6b7280;
  grid-column: 1 / -1;
}

@media only screen and (max-width: 768px) {
  .no-articles {
    padding: 60px 20px;
    font-size: 1.4rem;
  }
}

/* ページネーション */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
}

@media only screen and (max-width: 768px) {
  .pagination {
    gap: 5px;
  }
}

.pagination__btn {
  min-width: 44px;
  height: 44px;
  padding: 0 12px;
  font-size: 1.4rem;
  font-weight: 500;
  color: #374151;
  background-color: #fff;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

@media only screen and (max-width: 768px) {
  .pagination__btn {
    min-width: 40px;
    height: 40px;
    padding: 0 10px;
    font-size: 1.3rem;
  }
}

.pagination__btn:hover {
  background-color: #f3f4f6;
  border-color: #9ca3af;
}

.pagination__btn--active {
  color: #fff;
  background-color: #2563eb;
  border-color: #2563eb;
}

.pagination__btn--active:hover {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
}

.pagination__btn--prev,
.pagination__btn--next {
  padding: 0 20px;
}

@media only screen and (max-width: 768px) {
  .pagination__btn--prev,
  .pagination__btn--next {
    padding: 0 15px;
  }
}

.pagination__ellipsis {
  padding: 0 8px;
  font-size: 1.4rem;
  color: #9ca3af;
}