/* === Single Article — page-specific styles === */

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 32px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 80px;
  align-items: start;
}

/* Article header */
.article-header { margin-bottom: 32px; }

.article-header__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.article-header h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

/* Article container */
.article-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}

.article-body { max-width: var(--reading); }

.article-body > p,
.article-body p {
  margin: 0 0 1.5em;
  font-size: 15px;
  line-height: 2.0;
}

/* 目次からのジャンプ時、見出しが固定ヘッダーの下に隠れないよう余白を確保 */
.article-body h2,
.article-body h3 { scroll-margin-top: 120px; }
.article-body h2 {
  margin: 56px 0 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--color-primary);
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.article-body h3 {
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--color-accent);
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.5em;
  padding-left: 1.5em;
  font-size: 15px;
  line-height: 2.0;
}

.article-body li { margin-bottom: 0.5em; }

.article-body blockquote,
.article-body .wp-block-quote {
  margin: 32px 0;
  padding: 24px 28px;
  background: var(--color-blue-tint);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-body blockquote p,
.article-body .wp-block-quote p { margin: 0; }

.article-body strong { font-weight: 700; color: var(--color-navy); }

.article-body code {
  padding: 0.15em 0.4em;
  background: #f0f2f5;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.article-body figure { margin: 32px 0; padding: 0; }
.article-body figure img { border-radius: var(--radius-md); width: 100%; }
.article-body figcaption,
.article-body .wp-element-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-muted);
  text-align: left;
}

/* Callout (block-pattern markup also uses .anb-callout below) */
.callout,
.article-body .anb-callout {
  margin: 32px 0;
  padding: 24px;
  background: var(--color-blue-tint);
  border-radius: var(--radius-md);
  border: 1px solid #c5d4ec;
}

.callout__title,
.article-body .anb-callout > h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 8px;
  padding: 0;
  border: none;
  font-family: var(--font-sans);
}

.callout p,
.article-body .anb-callout p { margin: 0; font-size: 14px; line-height: 1.8; }

/* Table */
.article-body table,
.article-body .wp-block-table table {
  width: 100%;
  margin: 24px 0 32px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.7;
}

.article-body thead { background: var(--color-navy); color: #fff; }
.article-body th { padding: 12px 16px; text-align: left; font-weight: 600; font-size: 13px; }
.article-body td { padding: 12px 16px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.article-body tbody tr:nth-child(even) { background: #f9fafb; }

/* TOC Sidebar */
.sidebar { position: sticky; top: 128px; }

.toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.toc__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li { margin-bottom: 0; }

.toc a {
  display: block;
  padding: 8px 0 8px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  border-left: 2px solid transparent;
  transition: border-color 200ms ease, color 200ms ease;
}

.toc a:hover,
.toc a.is-active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  text-decoration: none;
}

.toc .toc__sub { padding-left: 12px; }
.toc .toc__sub a { font-size: 12px; padding: 5px 0 5px 16px; }

/* Author box */
.author-box {
  margin-top: 56px;
  padding: 24px;
  background: #f9fafb;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.author-box__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-blue-tint);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.author-box__avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
}

.author-box__name { font-size: 15px; font-weight: 700; margin: 0 0 4px; }
.author-box__role { font-size: 13px; color: var(--color-text-muted); margin: 0 0 8px; }
.author-box__bio { font-size: 13px; line-height: 1.8; margin: 0; color: var(--color-text-secondary); }

/* Article CTA */
.article-cta { margin-top: 48px; }

/* Related articles */
.related-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.related-section__heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 28px;
}

.related-section__heading .en {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.related-section__heading .ja {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

/* WP wraps post-template in <div class="wp-block-query"><ul class="wp-block-post-template"> — grid lives on the <ul> */
.related-grid .wp-block-post-template {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.related-grid .wp-block-post-template > li {
  list-style: none;
  margin: 0;
}

/* Responsive — single page */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; order: -1; }
}

@media (max-width: 768px) {
  .article-layout { padding: 0 16px 48px; }
  .article-container { padding: 28px 20px; }
  .article-body h2 { font-size: 20px; margin-top: 40px; }
  .article-body h3 { font-size: 18px; margin-top: 32px; }
  .related-section { padding: 0 16px 48px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .author-box { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 576px) {
  .article-header h1 { font-size: 22px; }
}

@media print {
  .sidebar, .related-section { display: none; }
  .article-layout { display: block; }
  .article-container { border: none; }
}

/* Image placeholder used inside post content (matches static HTML) */
.image-placeholder {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 30% 40%, rgba(0, 77, 151, 0.12), transparent 50%),
    linear-gradient(135deg, #dee8f9 0%, #f0f4fa 50%, #e8eef6 100%);
  border: 1px solid #d8e2f0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.4;
}
/* E-MAILiT ボタン(シェアボタン)を中央に配置 */
.e-mailit_toolbox {
  display: flex;
  justify-content: center;
  align-items: center;
}
/* E-MAILiT 共有ボタン間のマージンを調整 */
.e-mailit_toolbox .e-mailit_btn_Twitter,
.e-mailit_toolbox .e-mailit_btn_Facebook,
.e-mailit_toolbox .e-mailit_btn_LinkedIn,
.e-mailit_toolbox .e-mailit_btn_Line {
  margin-right: 30px; /* 右に30pxのマージンを設定 */
}
.e-mailit_toolbox .e-mailit_btn_Line {
  margin-right: 0; /* 最後のボタンのマージンを削除 */
}