/* ============================================================
   株式会社YAMAX 投稿ページ (single.php) & アーカイブ専用スタイル
   ============================================================ */

/* ---------- 記事詳細コンテナ & レイアウト ---------- */
.article-section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-3xl);
  background: var(--color-off-white);
}

.article-container {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.article-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 20px rgba(11, 79, 138, 0.06);
  padding: clamp(1.75rem, 5vw, 3.5rem);
}

/* ---------- 記事ヘッダー ---------- */
.article-header {
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-gray-100);
  padding-bottom: var(--space-lg);
}

.article-header__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.article-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-accent-2);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 4px 12px;
  letter-spacing: 0.04em;
}

.article-category a {
  color: inherit;
}

.article-category a:hover {
  color: var(--color-primary-light);
}

.article-date-group {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-en);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.article-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-date svg {
  color: var(--color-accent);
}

.article-title {
  font-family: var(--font-sans);
  font-size: clamp(1.625rem, 4vw, 2.375rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
}

/* ---------- アイキャッチ画像 ---------- */
.article-thumbnail {
  margin-bottom: var(--space-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.article-thumbnail img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
  display: block;
}

/* ---------- 記事本文 (Entry Content) ---------- */
.entry-content {
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--color-text);
  word-break: break-word;
}

.entry-content > * {
  margin-bottom: 1.75rem;
}

.entry-content > *:last-child {
  margin-bottom: 0;
}

/* 見出し H2 */
.entry-content h2 {
  font-size: clamp(1.375rem, 3.2vw, 1.75rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-primary-dark);
  margin-top: 3.5rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1.25rem;
  background: linear-gradient(90deg, var(--color-accent-2) 0%, rgba(232, 244, 253, 0.2) 100%);
  border-left: 5px solid var(--color-primary);
  letter-spacing: 0.01em;
}

/* 見出し H3 */
.entry-content h3 {
  font-size: clamp(1.2rem, 2.6vw, 1.4rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-primary);
  margin-top: 2.75rem;
  margin-bottom: 1.25rem;
  padding-left: 0.875rem;
  border-left: 3px solid var(--color-accent);
}

/* 見出し H4 */
.entry-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-gray-800);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

/* 段落 */
.entry-content p {
  margin-bottom: 1.75rem;
  letter-spacing: 0.02em;
}

/* 太字強調 & マーカー */
.entry-content strong,
.entry-content b {
  font-weight: 700;
  color: var(--color-primary-dark);
  background: linear-gradient(transparent 65%, rgba(0, 168, 232, 0.22) 65%);
  padding: 0 2px;
}

/* リンク */
.entry-content a {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.entry-content a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* キーポイントボックス (aimm-key-point) */
.entry-content .aimm-key-point {
  background: var(--color-accent-2);
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-primary);
  padding: 1.35rem 1.6rem;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text);
  margin-top: 1.5rem;
  margin-bottom: 2rem;
}

/* 引用リンク添字 (aimm-citation) */
.entry-content .aimm-citation {
  font-size: 0.75em;
  line-height: 1;
  vertical-align: super;
  margin-left: 2px;
}

.entry-content .aimm-citation a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  padding: 1px 4px;
  background: rgba(0, 168, 232, 0.08);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.entry-content .aimm-citation a:hover {
  background: var(--color-accent);
  color: white;
}

/* 参考資料・出典セクション (aimm-references) */
.entry-content .aimm-references {
  margin-top: 4rem;
  padding: 1.75rem 2rem;
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
}

.entry-content .aimm-references h2 {
  font-size: 1.15rem;
  margin-top: 0;
  margin-bottom: 1rem;
  padding: 0 0 0.5rem 0;
  background: none;
  border-left: none;
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-primary-dark);
}

.entry-content .aimm-references ol {
  padding-left: 1.5rem;
  margin-bottom: 0;
}

.entry-content .aimm-references li {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  word-break: break-all;
}

.entry-content .aimm-references a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.entry-content .aimm-references a:hover {
  color: var(--color-primary);
}

/* リスト (ul / ol) */
.entry-content ul,
.entry-content ol {
  margin-bottom: 2rem;
  padding-left: 1.5rem;
}

.entry-content ul {
  list-style: none;
  padding-left: 0;
}

.entry-content ul > li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  line-height: 1.8;
}

.entry-content ul > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
}

.entry-content ol {
  list-style-type: decimal;
}

.entry-content ol > li {
  margin-bottom: 0.75rem;
  line-height: 1.8;
  padding-left: 0.25rem;
}

/* 引用 (blockquote) */
.entry-content blockquote {
  position: relative;
  padding: 1.5rem 1.75rem;
  margin: 2rem 0;
  background: var(--color-off-white);
  border-left: 4px solid var(--color-primary);
  color: var(--color-gray-600);
  font-style: normal;
}

/* テーブル */
.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.9375rem;
}

.entry-content th,
.entry-content td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.entry-content th {
  background: var(--color-primary-dark);
  color: white;
  font-weight: 600;
  white-space: nowrap;
}

.entry-content td {
  background: white;
}

.entry-content tr:nth-child(even) td {
  background: var(--color-off-white);
}

/* 画像ブロック (wp-block-image) */
.entry-content figure.wp-block-image {
  margin: 2.5rem 0;
}

.entry-content figure.wp-block-image img {
  border: 1px solid var(--color-border);
  display: block;
  margin: 0 auto;
}

.entry-content figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 8px;
}

/* 区切り線 */
.entry-content hr {
  border: none;
  border-top: 1px dashed var(--color-border);
  margin: 3rem 0;
}

/* ---------- 記事フッター ---------- */
.article-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-gray-100);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-xl);
}

.article-tags__label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-tags a {
  display: inline-block;
  font-size: 0.8125rem;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-600);
  padding: 3px 10px;
  transition: all var(--transition-fast);
}

.article-tags a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ---------- 記事内コンバージョンCTA ---------- */
.article-cta {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: white;
  padding: clamp(2rem, 5vw, 3rem);
  margin: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.article-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23FFFFFF' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.article-cta__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.article-cta__badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.article-cta__title {
  font-family: var(--font-serif);
  font-size: clamp(1.375rem, 3.5vw, 1.875rem);
  font-weight: 700;
  color: white;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.article-cta__desc {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0 auto var(--space-lg);
}

.article-cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.article-cta__btn-tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 12px 24px;
  font-family: var(--font-en);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
}

.article-cta__btn-tel:hover {
  background: white;
  color: var(--color-primary-dark);
}

.article-cta__btn-web {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  color: var(--color-primary);
  padding: 12px 28px;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transition: all var(--transition-fast);
}

.article-cta__btn-web:hover {
  background: var(--color-snow);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ---------- 記事ナビゲーション (前へ・次へ) ---------- */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.article-nav__item {
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  background: var(--color-off-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.article-nav__item:hover {
  background: white;
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.article-nav__item--next {
  text-align: right;
  grid-column: 2;
}

.article-nav__item--prev {
  grid-column: 1;
}

.article-nav__label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-nav__item--next .article-nav__label {
  justify-content: flex-end;
}

.article-nav__title {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-primary-dark);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 記事一覧に戻るボタン */
.article-back-list {
  text-align: center;
  margin-top: var(--space-xl);
}

.article-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 10px 24px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.article-back-btn:hover {
  background: var(--color-accent-2);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---------- アーカイブ・記事一覧ページ用スタイル ---------- */
.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.post-card {
  background: white;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all var(--transition-base);
  text-decoration: none;
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.post-card__thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-gray-100);
}

.post-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.post-card:hover .post-card__thumb img {
  transform: scale(1.05);
}

.post-card__body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.post-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.post-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__excerpt {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-gray-600);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-sm);
  flex-grow: 1;
}

.post-card__more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: auto;
}

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

.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  background: white;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.pagination .page-numbers.current,
.pagination .page-numbers:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 768px) {
  .article-card {
    padding: 1.5rem 1.25rem;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .article-nav__item--next {
    grid-column: 1;
    text-align: left;
  }

  .article-nav__item--next .article-nav__label {
    justify-content: flex-start;
  }

  .article-cta__buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .article-cta__btn-tel,
  .article-cta__btn-web {
    justify-content: center;
  }
}