/* Comp A reading shell: column hero (when present) + left sticky TOC / mobile chips.
   Scoped under .blog-layout. Linked from scripts/render-published-blogs.py and
   scripts/render-published-briefs.py (published monitor HTML; hero optional). */
.blog-layout {
  --blog-nav-h: 88px;
  --blog-accent: #3B82F6;
  --blog-tip: #1E40AF;
  --blog-mesh: #64748B;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 200px minmax(0, 720px);
  gap: 2.5rem;
  justify-content: center;
}
.blog-layout .toc-rail {
  position: sticky;
  top: calc(var(--blog-nav-h) + 1rem);
  align-self: start;
  padding-top: 0.25rem;
}
.blog-layout .toc-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blog-mesh);
  margin-bottom: 0.75rem;
}
.blog-layout .toc-rail nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.blog-layout .toc-rail a {
  font-size: 0.8rem;
  color: var(--text-secondary, #6B7280);
  text-decoration: none;
  padding: 0.35rem 0.5rem 0.35rem 0.65rem;
  border-left: 2px solid transparent;
  line-height: 1.35;
  border-radius: 0 4px 4px 0;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.blog-layout .toc-rail a:hover { color: var(--text, #111827); }
.blog-layout .toc-rail a.active {
  color: var(--blog-tip);
  border-left-color: var(--blog-accent);
  background: rgba(59, 130, 246, 0.06);
  font-weight: 500;
}
.blog-layout .blog-main { min-width: 0; }
.blog-layout .blog-meta { color: var(--text-secondary, #666); font-size: 0.95rem; margin-bottom: 0.75rem; }
.blog-layout .blog-source { margin: 0 0 1rem; font-size: 0.9rem; }
.blog-layout .blog-hero { margin: 0 0 1.1rem; }
.blog-layout .blog-hero img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0;
  border-radius: 10px;
}
.blog-layout .mobile-toc { display: none; }
.blog-layout .mobile-chips {
  display: none;
  gap: 0.4rem;
  overflow-x: auto;
  padding: 0 0 0.85rem;
  position: sticky;
  top: var(--blog-nav-h);
  z-index: 50;
  background: rgba(250, 250, 249, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  margin: 0 -0.25rem;
  padding-left: 0.25rem;
  padding-right: 0.25rem;
  scrollbar-width: none;
}
.blog-layout .mobile-chips::-webkit-scrollbar { display: none; }
.blog-layout .mobile-chips a {
  flex: 0 0 auto;
  font-size: 0.75rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border, #E5E5E5);
  background: #fff;
  color: var(--text-secondary, #6B7280);
  text-decoration: none;
  white-space: nowrap;
}
.blog-layout .mobile-chips a.active {
  border-color: var(--blog-accent);
  color: var(--blog-tip);
  background: rgba(59, 130, 246, 0.08);
  font-weight: 500;
}
.blog-layout .blog-body { line-height: 1.7; }
.blog-layout .blog-body h1 {
  font-size: clamp(1.5rem, 3vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 0.75rem;
  line-height: 1.25;
}
.blog-layout .blog-body h2 {
  margin: 2.25rem 0 0.85rem;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  scroll-margin-top: calc(var(--blog-nav-h) + 1rem);
}
.blog-layout .blog-body h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.35;
}
.blog-layout .blog-body p {
  margin: 0 0 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary, #475569);
}
.blog-layout .blog-body blockquote {
  margin: 1.25rem 0 1.5rem;
  padding: 0.4rem 0 0.4rem 1rem;
  border-left: 3px solid var(--border, #d0d0d0);
}
.blog-layout .blog-body blockquote p { margin-bottom: 0.5rem; }
.blog-layout .blog-body blockquote p:last-child { margin-bottom: 0; }
.blog-layout .blog-body hr {
  margin: 2rem 0;
  border: 0;
  border-top: 1px solid var(--border, #e5e5e5);
}
.blog-layout .blog-body ul,
.blog-layout .blog-body ol {
  list-style: disc outside !important;
  margin: 0.35rem 0 1.25rem !important;
  padding-left: 1.6rem !important;
  color: var(--text-secondary, #475569);
}
.blog-layout .blog-body ol { list-style: decimal outside !important; }
.blog-layout .blog-body li {
  margin: 0.45rem 0 !important;
  padding-left: 0.35rem;
  line-height: 1.6;
}
.blog-layout .blog-body pre {
  overflow-x: auto;
  background: #0F172A;
  color: #E2E8F0;
  padding: 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  line-height: 1.6;
}
.blog-layout .blog-body code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  background: rgba(37, 99, 235, 0.08);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}
.blog-layout .blog-body pre code {
  background: none;
  padding: 0;
  color: inherit;
}
.blog-layout .blog-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 1.5rem;
  font-size: 0.95rem;
  line-height: 1.45;
}
.blog-layout .blog-body thead th {
  text-align: left;
  font-weight: 600;
  padding: 0.65rem 0.75rem;
  border-bottom: 2px solid var(--border, #d0d0d0);
}
.blog-layout .blog-body tbody td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border, #e8e8e8);
  vertical-align: top;
}
.blog-layout .blog-body img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0 1.75rem;
  border-radius: 8px;
}
.blog-layout .blog-body p > img {
  margin: 1.5rem 0 0.25rem;
}
@media (max-width: 900px) {
  .blog-layout {
    grid-template-columns: 1fr;
    max-width: 720px;
    padding: 1.5rem 1.15rem 4rem;
    gap: 0;
  }
  .blog-layout .toc-rail { display: none; }
  .blog-layout .mobile-toc { display: block; }
  .blog-layout .mobile-chips { display: flex; }
  .blog-layout .blog-body h2 {
    scroll-margin-top: calc(var(--blog-nav-h) + 3.2rem);
  }
}
.blog-layout.blog-layout--solo {
  grid-template-columns: minmax(0, 720px);
}
.blog-layout.blog-layout--solo .toc-rail { display: none; }