/* Blog layout */
.blog-container { max-width: 720px; margin: 0 auto; padding: 0 24px; }

/* Blog index */
.blog-hero { margin-bottom: 40px; }
.blog-hero h1 { font-family: 'Cinzel', serif; font-size: 2rem; margin-bottom: 8px; }
.blog-hero p { color: #4b5563; font-size: 1.05rem; }
.blog-toc {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.blog-toc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  color: #111827;
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}
.blog-toc-link:hover {
  border-color: #a06b3a;
  background: #fdf8f3;
  text-decoration: none;
}
.blog-toc-count {
  color: #6b7280;
  font-weight: 400;
  font-size: 0.85em;
}
.post-category {
  margin: 48px 0 32px;
  scroll-margin-top: 24px;
}
.post-category-heading {
  font-family: 'Cinzel', serif;
  font-size: 1.4rem;
  margin: 0 0 6px;
  color: #111827;
  border-bottom: 2px solid #d4a574;
  padding-bottom: 8px;
}
.post-category-description {
  color: #6b7280;
  font-size: 0.95rem;
  margin: 0 0 20px;
}
.post-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 16px; }
.post-card {
  display: block;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 20px 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.post-card:hover {
  border-color: #a06b3a;
  box-shadow: 0 2px 8px rgba(160, 107, 58, 0.1);
  text-decoration: none;
}
.post-card h2,
.post-card h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
  border: none;
  padding: 0;
  color: #111827;
  font-weight: 600;
}
.post-card .post-meta {
  font-size: 0.85rem;
  color: #4b5563;
  margin-bottom: 10px;
}
.post-card .post-excerpt {
  font-size: 0.95rem;
  color: #374151;
  line-height: 1.6;
}
.post-card .read-more {
  display: inline-block;
  margin-top: 10px;
  color: #a06b3a;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Article page */
.article-header { margin-bottom: 32px; }
.article-header h1 { font-family: 'Cinzel', serif; font-size: 2rem; line-height: 1.3; margin-bottom: 12px; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.9rem;
  color: #4b5563;
  align-items: center;
}
.article-meta .meta-item { display: flex; align-items: center; gap: 6px; }

.key-takeaways {
  margin: 0 0 28px;
  padding: 22px 26px 18px;
  background: linear-gradient(135deg, #fffaf0 0%, #fff8e7 100%);
  border: 1px solid #e8d8b0;
  border-left: 4px solid #a06b3a;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(160, 107, 58, 0.08);
}
.key-takeaways h2 {
  font-family: 'Cinzel', serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a06b3a;
  margin: 0 0 12px;
  padding: 0;
  border: 0;
}
.key-takeaways ul { margin: 0; padding: 0 0 0 20px; list-style: disc; }
.key-takeaways li {
  margin: 0 0 8px;
  font-size: 1rem;
  line-height: 1.55;
  color: #1f2937;
}
.key-takeaways li:last-child { margin-bottom: 0; }
.key-takeaways li strong { color: #111827; }

.article-body { line-height: 1.8; color: #111827; }
.article-body h2 {
  font-size: 1.4rem;
  margin: 36px 0 16px;
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 8px;
}
.article-body h3 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
}
.article-body h4 {
  font-size: 1rem;
  margin: 24px 0 8px;
}
.article-body p {
  margin-bottom: 16px;
}
.article-body ul, .article-body ol {
  margin: 0 0 16px 24px;
  line-height: 1.8;
}
.article-body li {
  margin-bottom: 8px;
}
.article-body a {
  color: #a06b3a;
  text-decoration: underline;
  text-decoration-color: rgba(160, 107, 58, 0.3);
  text-underline-offset: 2px;
}
.article-body a:hover {
  text-decoration-color: #a06b3a;
}
.article-body blockquote {
  margin: 20px 0;
  padding: 16px 24px;
  border-left: 4px solid #a06b3a;
  background: #faf8f5;
  border-radius: 0 8px 8px 0;
  color: #111827;
  font-weight: 500;
}
.article-body blockquote p { margin-bottom: 0; }

/* Callout boxes (lesson-style) */
.callout {
  margin: 20px 0;
  padding: 16px 20px;
  border-left: 3px solid;
  border-radius: 0 8px 8px 0;
  font-style: normal;
  line-height: 1.7;
}
.callout-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  padding: 2px 8px;
  border-radius: 4px;
  width: fit-content;
}
.callout p { margin: 0; font-style: normal; }
.callout-key {
  border-color: #a06b3a;
  background: rgba(160, 107, 58, 0.07);
}
.callout-key .callout-label {
  color: #a06b3a;
  background: rgba(160, 107, 58, 0.12);
}
.callout-trap {
  border-color: #dc3545;
  background: rgba(220, 53, 69, 0.05);
}
.callout-trap .callout-label {
  color: #dc3545;
  background: rgba(220, 53, 69, 0.1);
}
.callout-note {
  border-color: #6b7280;
  background: rgba(107, 114, 128, 0.05);
}
.callout-note .callout-label {
  color: #6b7280;
  background: rgba(107, 114, 128, 0.1);
}
.callout-bottom-line {
  border-color: #a06b3a;
  background: rgba(160, 107, 58, 0.05);
}
.callout-bottom-line .callout-label {
  color: #a06b3a;
  background: rgba(160, 107, 58, 0.12);
}
.article-body pre {
  background: #1e1e2e;
  color: #cdd6f4;
  padding: 16px 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 16px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
  line-height: 1.6;
}
.article-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88em;
  background: #eef0f3;
  padding: 2px 6px;
  border-radius: 4px;
  color: #92400e;
}
.article-body pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
.article-body hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 32px 0;
}

/* GFM tables (rendered by marked) */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.95em;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}
.article-body table thead {
  background: #faf8f5;
}
.article-body table th,
.article-body table td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid #e5e7eb;
  white-space: normal;
  vertical-align: top;
}
.article-body table th {
  font-weight: 700;
  color: #111827;
  border-bottom: 2px solid #d6cfc1;
}
.article-body table tbody tr:hover {
  background: #fafafa;
}
@media (max-width: 600px) {
  .article-body table { font-size: 0.88em; }
  .article-body table th,
  .article-body table td { padding: 8px 10px; }
}

/* CTA section */
.blog-cta {
  margin: 48px 0 32px;
  padding: 32px;
  background: linear-gradient(135deg, #faf8f5 0%, #f5efe8 100%);
  border: 1px solid #d4b896;
  border-radius: 12px;
  text-align: center;
}
.blog-cta h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.2rem;
  margin: 0 0 12px;
  color: #111827;
}
.blog-cta p {
  color: #374151;
  margin-bottom: 20px;
  font-size: 0.95rem;
}
.blog-cta .cta-button {
  display: inline-block;
  padding: 14px 32px;
  background: #a06b3a;
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.blog-cta .cta-button:hover { opacity: 0.9; text-decoration: none; }

/* Formula-sheet companion card. Sits between header and body when post
   defines formulaSheetSlug. Lighter than .blog-cta so it acts as a
   reference shortcut, not a competing call-to-action. */
.formula-sheet-link {
  margin: 8px 0 28px;
  padding: 16px 20px;
  background: #faf8f5;
  border: 1px solid #d6cfc1;
  border-left: 4px solid #a06b3a;
  border-radius: 8px;
}
.formula-sheet-link .fs-eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #a06b3a;
  margin-bottom: 8px;
}
.formula-sheet-link .fs-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.formula-sheet-link .fs-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1 1 240px;
  min-width: 0;
}
.formula-sheet-link .fs-text strong {
  color: #111827;
  font-size: 1rem;
  font-weight: 700;
  font-family: 'DM Sans', sans-serif;
  line-height: 1.3;
}
.formula-sheet-link .fs-sub {
  color: #4b5563;
  font-size: 0.85rem;
  line-height: 1.4;
}
.formula-sheet-link .fs-button {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: 8px;
  background: #a06b3a;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.formula-sheet-link .fs-button:hover {
  opacity: 0.9;
  text-decoration: none;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: #4b5563;
  margin-bottom: 20px;
}
.breadcrumb a { color: #4b5563; }
.breadcrumb a:hover { color: #a06b3a; }

@media (max-width: 600px) {
  .article-header h1 { font-size: 1.5rem; }
  .blog-hero h1 { font-size: 1.5rem; }
  .post-card { padding: 18px 20px; }
  .blog-cta { padding: 24px 20px; }
}