/* Article body — reading-optimized typography (18px / 1.75 / max-w 680px). */

.article-body {
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-primary);
}

.article-body p {
  margin: 0 0 28px;
  letter-spacing: -0.003em;
}

.article-body h2 {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin: 56px 0 24px;
}

.article-body h3 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 40px 0 16px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 28px;
  padding-left: 28px;
}

.article-body li {
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 12px;
}

.article-body a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border-medium);
  padding-bottom: 1px;
  transition: color 200ms ease, border-color 200ms ease;
}

.article-body a:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.article-body strong { font-weight: 600; color: var(--text-primary); }
.article-body em { font-style: italic; color: var(--text-primary); }

.article-body blockquote {
  margin: 40px 0;
  padding: 4px 0 4px 28px;
  border-left: 3px solid var(--brand-orange);
  font-size: 22px;
  font-weight: 400;
  line-height: 1.5;
  font-style: italic;
  color: var(--text-primary);
}

.article-body blockquote p { margin: 0; font-size: inherit; line-height: inherit; }

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 15px;
}

.article-body th {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 2px solid var(--border-medium);
  font-weight: 600;
  background: var(--bg-cream);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.article-body td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
}

.article-body details {
  background: var(--bg-cream);
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 16px 20px;
  margin: 16px 0;
}

.article-body details summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.article-body details summary::after {
  content: '+';
  font-size: 20px;
  color: var(--text-tertiary);
  transition: transform 300ms ease;
}

.article-body details[open] summary::after { transform: rotate(45deg); }
.article-body details[open] { background: var(--bg-pure-white); }

.article-body details p {
  margin: 16px 0 0;
  font-size: 15px;
  color: var(--text-secondary);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--bg-cream);
  padding: 2px 6px;
  border-radius: 4px;
}

.article-body img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
  margin: 32px auto;
}

@media (max-width: 720px) {
  .article-body { font-size: 17px; }
  .article-body p,
  .article-body li { font-size: 17px; }
  .article-body h2 { font-size: 26px; margin: 40px 0 16px; }
  .article-body h3 { font-size: 20px; margin: 32px 0 12px; }
  .article-body blockquote { font-size: 19px; padding-left: 20px; }
}