.series-hero {
  padding-bottom: 1.6rem;
}

.series-intro {
  max-width: 46rem;
  color: var(--muted);
  line-height: 1.55;
  margin-top: 0.6rem;
}

.series-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.series-card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 1.1rem;
  text-decoration: none;
  color: inherit;
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.series-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(18, 24, 32, 0.08);
}

.series-card h2 {
  font-size: 1.15rem;
  margin: 0 0 0.45rem;
}

.series-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.series-card-meta {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

.series-list-section {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 1.6rem;
}

.series-list-section h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  margin-bottom: 0.35rem;
}

.post-list {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
}

.post-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

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

.post-list a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  line-height: 1.4;
}

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

.post-list time {
  color: var(--muted);
  font-size: 0.88rem;
  white-space: nowrap;
}

.post-list-empty {
  color: var(--muted);
  font-style: italic;
  margin-top: 1rem;
}

.series-back {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.92rem;
}

.series-back:hover {
  text-decoration: underline;
}

.post-article {
  max-width: 44rem;
}

.post-article header {
  margin-bottom: 1.6rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.post-article h1 {
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

.post-meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.post-body {
  line-height: 1.65;
  font-size: 1rem;
}

.post-body h2,
.post-body h3 {
  font-family: "Libre Baskerville", Georgia, serif;
  margin: 1.6rem 0 0.6rem;
}

.post-body p {
  margin: 0 0 1rem;
}

.post-body ul,
.post-body ol {
  margin: 0 0 1rem;
  padding-left: 1.4rem;
}

.post-body a {
  color: var(--accent);
}

.post-blocks {
  display: grid;
  gap: 1.1rem;
}

.block-paragraph p:last-child,
.block-callout p:last-child {
  margin-bottom: 0;
}

.block-heading {
  font-family: "Libre Baskerville", Georgia, serif;
  margin: 0;
  line-height: 1.25;
}

.block-image {
  margin: 0;
}

.block-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #f6f3ec;
}

.block-image-medium img {
  max-width: 34rem;
  margin: 0 auto;
}

.block-image figcaption,
.block-video figcaption,
.block-embed-card figcaption,
.block-embed-fallback figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.block-video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #111;
}

.block-video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.block-embed-card {
  margin: 0;
}

.block-embed-link {
  display: grid;
  gap: 0.2rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  background: #fff;
  text-decoration: none;
  color: inherit;
}

.block-embed-link:hover {
  border-color: var(--accent);
}

.block-embed-label {
  font-weight: 600;
}

.block-embed-url {
  color: var(--muted);
  font-size: 0.88rem;
  word-break: break-all;
}

.block-code {
  margin: 0;
  border: 1px solid var(--line);
  background: #121820;
  color: #eef2f7;
  overflow: auto;
}

.block-code-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(238, 242, 247, 0.72);
}

.block-code pre {
  margin: 0;
  padding: 0.85rem 0.95rem;
  overflow: auto;
}

.block-code code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.88rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.block-github {
  margin: 0;
}

.block-github a {
  display: grid;
  gap: 0.25rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  background: #f8f5ef;
  text-decoration: none;
  color: inherit;
}

.block-github-badge {
  display: inline-block;
  width: fit-content;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: #121820;
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.block-github-repo {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.95rem;
}

.block-github-caption {
  color: var(--muted);
  font-size: 0.9rem;
}

.block-quote {
  margin: 0;
  padding: 0.2rem 0 0.2rem 1rem;
  border-left: 3px solid var(--line);
}

.block-quote cite {
  display: block;
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-style: normal;
}

.block-reference {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.block-callout {
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-left-width: 4px;
}

.block-callout-note {
  background: #f8f5ef;
  border-left-color: var(--accent);
}

.block-callout-tip {
  background: #eef7f1;
  border-left-color: #1f4d3a;
}

.block-callout-warning {
  background: #fff6ea;
  border-left-color: #8a6a1e;
}

.block-divider {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0.5rem 0;
}

.font-libre-baskerville { font-family: "Libre Baskerville", Georgia, serif; }
.font-inter { font-family: "Inter", system-ui, sans-serif; }
.font-source-serif { font-family: "Source Serif 4", Georgia, serif; }
.font-dm-sans { font-family: "DM Sans", system-ui, sans-serif; }
.font-playfair { font-family: "Playfair Display", Georgia, serif; }
.font-lora { font-family: "Lora", Georgia, serif; }
.font-jetbrains { font-family: "JetBrains Mono", ui-monospace, monospace; }

.post-body blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.series-more {
  margin-top: 2.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

.series-more h2 {
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

@media (max-width: 900px) {
  .series-grid {
    grid-template-columns: 1fr;
  }

  .post-list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}