/* =============================================
   rika-apps.com — ブログ追加スタイル
   読みやすさ重視・繊細な装飾
   ============================================= */

/* --- 記事一覧 --- */
.post-list {
  list-style: none;
}

.post-list-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-divider);
}

.post-list-item:first-child {
  padding-top: 0;
}

.post-list-item:last-child {
  border-bottom: none;
}

.post-list-date {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  display: block;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.post-list-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  display: block;
  margin-bottom: 8px;
  transition: color var(--transition);
  letter-spacing: -0.01em;
}

.post-list-title:hover {
  color: var(--color-accent);
}

.post-list-excerpt {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- 記事本文 --- */
.article-header {
  padding: 36px 0 24px;
  max-width: 640px;
  margin: 0 auto;
}

.article-header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.55;
  margin-bottom: 10px;
}

.article-date {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  letter-spacing: 0.04em;
}

.article-body {
  max-width: 640px;
  margin: 0 auto;
  padding-bottom: 40px;
}

.article-body p {
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 20px;
  color: var(--color-text);
}

.article-body h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--color-text);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-divider);
}

.article-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.article-body ul,
.article-body ol {
  margin-bottom: 20px;
  padding-left: 1.4em;
}

.article-body li {
  line-height: 1.95;
  margin-bottom: 6px;
}

.article-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-accent-light);
}

/* --- 前後の記事リンク --- */
.article-nav {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 0 8px;
  border-top: 1px solid var(--color-divider);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.article-nav a {
  font-size: 0.85rem;
  font-weight: 500;
}

.article-nav .nav-prev::before {
  content: "← ";
}

.article-nav .nav-next::after {
  content: " →";
}

/* --- 戻るリンク --- */
.back-link {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 0 0;
}

.back-link a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.back-link a:hover {
  color: var(--color-accent);
}

/* --- レスポンシブ --- */
@media (max-width: 600px) {
  .article-header h1 {
    font-size: 1.2rem;
  }

  .article-nav {
    flex-direction: column;
  }
}