/*====================================================*/
/*                  ブログページ共通                   */
/*====================================================*/

/* ブログ記事詳細ページ */
.blog-single {
  padding: 50px 0 60px;
  background-color: var(--color-secondary);
  min-height: 100vh;
}

.blog-article {
  background-color: #fff;
  border-radius: 12px;
  padding: 3rem 2rem;
  margin-bottom: 3rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  max-width: 1000px;
  margin: auto;
}

/* ブログヘッダー */
.blog-header {
  margin-bottom: 2rem;
}

.blog-header__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.blog-header__date {
  color: #666;
  font-size: 0.9rem;
}

.blog-header__category {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.category-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: 20px;
  font-size: 0.85rem;
  transition: opacity 0.3s;
}

.category-badge:hover {
  opacity: 0.8;
}

.blog-header__title {
  font-size: 2rem;
  color: var(--color-primary);
  line-height: 1.5;
  font-weight: 700;
}

/* サムネイル画像 */
.blog-thumbnail {
  margin-bottom: 2rem;
  border-radius: 8px;
  overflow: hidden;
}

.blog-thumbnail__img {
  width: 100%;
  height: auto;
  display: block;
}

/* ブログ本文 */
.blog-content {
  font-size: 1rem;
  line-height: 1.8;
  color: #333;
}

.blog-content h2 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.blog-content h3 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin: 2rem 0 1rem;
  padding-left: 0.5rem;
  border-left: 4px solid var(--color-primary);
}

.blog-content p {
  margin-bottom: 1.5rem;
}

.blog-content ul,
.blog-content ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.blog-content li {
  margin-bottom: 0.5rem;
  list-style: disc;
}

.blog-content ol li {
  list-style: decimal;
}

.blog-content img {
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  border-radius: 8px;
}

.blog-content blockquote {
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  background-color: #f5f5f5;
  border-left: 4px solid var(--color-primary);
  font-style: italic;
}

.blog-content table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
}

.blog-content th,
.blog-content td {
  padding: 0.75rem;
  border: 1px solid #ddd;
}

.blog-content th {
  background-color: var(--color-secondary);
  font-weight: 600;
}

.blog-content pre {
  background-color: #f4f4f4;
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.blog-content code {
  background-color: #f4f4f4;
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-size: 0.9rem;
}

/* タグ */
.blog-tags {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #e0e0e0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.blog-tags__label {
  color: #666;
  font-size: 0.9rem;
}

.blog-tags__item {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: #f0f0f0;
  color: #666;
  border-radius: 15px;
  font-size: 0.85rem;
  transition: background-color 0.3s;
}

.blog-tags__item:hover {
  background-color: var(--color-accent);
  color: #333;
}

/* ナビゲーション */
.blog-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #e0e0e0;
}

.blog-nav__prev,
.blog-nav__next {
  font-size: 0.9rem;
}

.blog-nav__prev a,
.blog-nav__next a {
  color: var(--color-primary);
  transition: opacity 0.3s;
  display: block;
}

.blog-nav__prev a:hover,
.blog-nav__next a:hover {
  opacity: 0.7;
}

.blog-nav__next {
  text-align: right;
}

/*====================================================*/
/*                アーカイブページ                     */
/*====================================================*/

.blog-archive {
  padding: 100px 0 60px;
  background-color: var(--color-secondary);
  min-height: 100vh;
}

.archive-header {
  text-align: center;
  margin-bottom: 3rem;
}

.archive-header__title {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.archive-header__description {
  color: #666;
  font-size: 1rem;
  line-height: 1.6;
}

/* ブログ一覧グリッド */
.blog-list__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

/* ブログカード */
.blog-card {
  background-color: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.blog-card__link {
  display: block;
  height: 100%;
}

.blog-card__thumbnail {
  position: relative;
  padding-top: 60%;
  overflow: hidden;
  background-color: #f5f5f5;
}

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

.blog-card__thumbnail--noimage {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
}

.blog-card__noimage {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 600;
}

.blog-card__content {
  padding: 1.5rem;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
}

.blog-card__date {
  color: #999;
}

.blog-card__category {
  padding: 0.2rem 0.6rem;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: 12px;
  font-size: 0.8rem;
}

.blog-card__title {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  line-height: 1.5;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__excerpt {
  color: #666;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__more {
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: transform 0.3s;
}

.blog-card:hover .blog-card__more {
  transform: translateX(5px);
}

/* ページネーション */
.pagination {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}

.pagination ul {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.pagination li {
  list-style: none;
}

.pagination a,
.pagination .current {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 0.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: background-color 0.3s, color 0.3s;
}

.pagination a {
  background-color: #fff;
  color: var(--color-primary);
  border: 1px solid #e0e0e0;
}

.pagination a:hover {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.pagination .current {
  background-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

/* 記事なし */
.no-posts {
  text-align: center;
  padding: 4rem 2rem;
  background-color: #fff;
  border-radius: 12px;
}

.no-posts p {
  color: #666;
  font-size: 1.1rem;
}

/*====================================================*/
/*                 レスポンシブ対応                    */
/*====================================================*/

@media (max-width: 768px) {
  /* ブログ詳細 */
  .blog-single {
    padding: 80px 0 40px;
  }

  .blog-article {
    padding: 2rem 1.5rem;
    border-radius: 0;
  }

  .blog-header__title {
    font-size: 1.5rem;
  }

  .blog-content h2 {
    font-size: 1.3rem;
  }

  .blog-content h3 {
    font-size: 1.1rem;
  }

  .blog-nav {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .blog-nav__next {
    text-align: left;
  }

  /* アーカイブ */
  .blog-archive {
    padding: 80px 0 40px;
  }

  .archive-header__title {
    font-size: 1.5rem;
  }

  .blog-list__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .blog-card__title {
    font-size: 1.1rem;
  }
}