/* ============================================================
   sidebar.css — サイドバー共通スタイル
   使い方: <aside class="sidebar"> に適用
   ============================================================ */

/* ----- コンテナ ----- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ----- ウィジェット共通 ----- */
.sidebar-widget {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

.sidebar-widget-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  background: #1e3a8a;
  padding: 9px 14px;
  margin: 0;
  letter-spacing: 0.06em;
  text-transform: none;
}

/* ----- カテゴリリスト ----- */
.sidebar-cat-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-cat-item {
  border-bottom: 1px solid #f3f4f6;
}

.sidebar-cat-item:last-child {
  border-bottom: none;
}

.sidebar-cat-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  color: #374151;
  text-decoration: none;
  font-size: 0.875rem;
  transition: background 0.15s, color 0.15s;
}

.sidebar-cat-link:hover {
  background: #eff6ff;
  color: #1e40af;
}

.sidebar-cat-count {
  font-size: 0.72rem;
  color: #9ca3af;
  background: #f3f4f6;
  padding: 2px 8px;
  border-radius: 10px;
  flex-shrink: 0;
}

/* ----- 記事リスト（新着・人気） ----- */
.sidebar-article-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-article-item {
  padding: 10px 14px;
  border-bottom: 1px solid #f3f4f6;
}

.sidebar-article-item:last-child {
  border-bottom: none;
}

.sidebar-article-link {
  display: block;
  color: #374151;
  text-decoration: none;
  font-size: 0.82rem;
  line-height: 1.55;
  margin-bottom: 4px;
  transition: color 0.15s;
}

.sidebar-article-link:hover {
  color: #1e40af;
}

.sidebar-article-date {
  display: block;
  font-size: 0.72rem;
  color: #9ca3af;
}

/* ----- タグクラウド ----- */
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 12px 14px;
}

.sidebar-tag {
  font-size: 0.72rem;
  color: #1e40af;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  padding: 3px 10px;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.sidebar-tag:hover {
  background: #1e40af;
  color: #fff;
}

/* ----- このサイトについて ----- */
.sidebar-about {
  padding: 14px;
}

.sidebar-about p {
  font-size: 0.82rem;
  color: #6b7280;
  line-height: 1.65;
  margin: 0 0 10px;
}

.sidebar-about-link {
  display: inline-block;
  font-size: 0.78rem;
  color: #1e40af;
  border: 1px solid #bfdbfe;
  padding: 4px 12px;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.15s;
}

.sidebar-about-link:hover {
  background: #eff6ff;
}

/* ----- お問い合わせ CTA ----- */
.sidebar-cta {
  padding: 14px;
  text-align: center;
}

.sidebar-cta p {
  font-size: 0.82rem;
  color: #6b7280;
  margin: 0 0 10px;
  line-height: 1.6;
}

.sidebar-cta-btn {
  display: inline-block;
  background: #1e40af;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.15s;
}

.sidebar-cta-btn:hover {
  background: #1e3a8a;
}

/* ----- 広告枠 ----- */
.sidebar-ad {
  padding: 14px;
  text-align: center;
}

.sidebar-ad-placeholder {
  background: #f9fafb;
  border: 2px dashed #d1d5db;
  border-radius: 6px;
  padding: 32px 16px;
  color: #9ca3af;
  font-size: 0.78rem;
  line-height: 2;
}