:root {
  --blog-reading-width: 48rem;
  --blog-list-width: 72rem;
  --blog-title-size: clamp(2.15rem, 5vw, 3rem);
  --article-title-size: clamp(2rem, 4.5vw, 2.6rem);
  --article-h2-size: clamp(1.35rem, 3vw, 1.6rem);
  --article-h3-size: clamp(1.15rem, 2.4vw, 1.3rem);
  --article-body-size: 1rem;
  --blog-card-title-size: clamp(1.2rem, 2.2vw, 1.45rem);
  --blog-meta-size: 0.78rem;
  --blog-small-size: 0.875rem;
  --blog-line-reading: 1.85;
}

.blog-hero {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding-block: clamp(4.5rem, 9vw, 7rem);
}

.blog-hero-inner {
  max-width: var(--blog-list-width);
}

.blog-hero h1 {
  max-width: 14ch;
  margin-block: 0.6rem 1.1rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--blog-title-size);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  text-wrap: pretty;
}

.blog-hero-desc {
  max-width: 42rem;
  margin: 0;
  color: var(--muted);
  font-size: var(--article-body-size);
  line-height: 1.8;
}

.blog-index-sec {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.blog-index-sec > .wrap {
  max-width: var(--blog-list-width);
}

.blog-index-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.blog-index-head h2,
.blog-bottom-panel h2 {
  margin-block: 0.35rem 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  letter-spacing: -0.01em;
  line-height: 1.25;
  text-wrap: pretty;
}

.blog-index-note,
.blog-result-status {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--blog-meta-size);
}

.blog-index-note {
  margin: 0;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.tag-filter-btn {
  appearance: none;
  min-height: 2.35rem;
  padding-inline: 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: var(--blog-small-size);
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.tag-filter-btn:hover,
.tag-filter-btn:focus-visible {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.tag-filter-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tag-filter-btn.is-active {
  border-color: var(--accent);
  background: var(--bg-panel-2);
  color: var(--accent-dark);
  font-weight: 700;
}

.blog-result-status {
  min-height: 1.25rem;
  margin-block: 1rem;
}

.post-deck {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
}

.post-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(1.4rem, 3vw, 2rem);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  transition: background-color 160ms ease;
}

.post-card:nth-child(even) {
  border-right: 0;
}

.post-card:hover {
  background: var(--bg-panel);
}

.post-meta,
.article-meta,
.related-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.65rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--blog-meta-size);
  line-height: 1.5;
}

.post-tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.6rem;
  padding-inline: 0.55rem;
  border: 1px solid var(--accent);
  border-radius: var(--r-s);
  color: var(--accent-dark);
  font-family: var(--font-body);
  font-weight: 700;
}

.post-card h3 {
  margin-block: 1rem 0.75rem;
  font-family: var(--font-display);
  font-size: var(--blog-card-title-size);
  letter-spacing: -0.01em;
  line-height: 1.4;
  text-wrap: pretty;
}

.post-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.post-card h3 a:hover {
  color: var(--accent-dark);
}

.post-card p {
  margin: 0;
  color: var(--muted);
  font-size: var(--article-body-size);
  line-height: 1.8;
}

.post-more {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 1.25rem;
  color: var(--accent-dark);
  font-size: var(--blog-small-size);
  font-weight: 700;
  text-decoration: none;
}

.post-more::after,
.related-more::after {
  content: "→";
  font-family: var(--font-mono);
}

.post-more:hover,
.related-card:hover .related-more {
  color: var(--ink);
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding-block: 3rem;
  color: var(--muted);
  text-align: center;
}

.blog-bottom-cta {
  padding-block: clamp(1rem, 4vw, 3rem) clamp(5rem, 8vw, 7rem);
}

.blog-bottom-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  max-width: var(--blog-list-width);
  margin-inline: auto;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--bg-panel);
}

.blog-bottom-panel p {
  max-width: 42rem;
  margin-block: 0.75rem 0;
  color: var(--muted);
  line-height: 1.8;
}

.blog-bottom-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.article-breadcrumb {
  max-width: var(--blog-reading-width);
  margin-top: 1.5rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.article-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: var(--blog-small-size);
  list-style: none;
}

.article-breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 0.45rem;
  color: var(--border);
  font-family: var(--font-mono);
}

.article-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.article-breadcrumb a:hover {
  color: var(--accent-dark);
}

.article-hero {
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  padding-block: clamp(2.2rem, 5vw, 3.6rem) 2rem;
  padding-inline: var(--gutter);
}

.article-hero h1 {
  margin-block: 1rem 1.1rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--article-title-size);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-wrap: pretty;
}

.article-lead {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 2vw, 1.12rem);
  line-height: 1.85;
}

.article-body,
.article-content {
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  color: var(--ink);
  font-size: var(--article-body-size);
  line-height: var(--blog-line-reading);
}

.article-body h2,
.article-content h2 {
  margin-block: 2.75rem 1rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  letter-spacing: -0.01em;
  line-height: 1.35;
  text-wrap: pretty;
}

.article-body h2:first-child,
.article-content h2:first-child {
  margin-top: 1rem;
}

.article-body h3,
.article-content h3 {
  margin-block: 2rem 0.75rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--article-h3-size);
  letter-spacing: 0;
  line-height: 1.4;
  text-wrap: pretty;
}

.article-body p,
.article-content p {
  margin-block: 0 1.35rem;
}

.article-body a,
.article-content a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.article-body ul,
.article-body ol,
.article-content ul,
.article-content ol {
  margin-block: 0 1.5rem;
  padding-left: 1.5rem;
}

.article-body li,
.article-content li {
  margin-block: 0.45rem;
}

.article-body blockquote,
.article-content blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-panel);
  color: var(--muted);
}

.article-body pre,
.article-content pre {
  max-width: 100%;
  overflow-x: auto;
  margin-block: 1.75rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  background: var(--bg-panel);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--blog-small-size);
  line-height: 1.7;
}

.article-body code,
.article-content code {
  font-family: var(--font-mono);
}

.article-body :not(pre) > code,
.article-content :not(pre) > code {
  padding: 0.12rem 0.35rem;
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  background: var(--bg-panel);
  font-size: var(--blog-small-size);
}

.article-body img,
.article-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-block: 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--r);
}

.article-body hr,
.article-content hr {
  margin-block: 2.5rem;
  border: 0;
  border-top: 1px solid var(--border);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-block: 1.75rem;
}

.stat-card {
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--bg-panel);
}

.stat-num {
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: var(--blog-small-size);
}

.check-list {
  margin-block: 1.75rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--bg-panel);
  list-style: none;
}

.check-list li {
  margin-block: 0.55rem;
}

.verdict {
  margin-block: 1.75rem;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-panel-2);
  color: var(--ink);
}

.promo-end {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: var(--blog-reading-width);
  margin: 3.5rem auto 0;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--accent);
  border-radius: var(--r);
  background: var(--bg-panel);
}

.promo-brand {
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--blog-meta-size);
  font-weight: 700;
}

.promo-copy h3 {
  margin-block: 0.55rem 0.5rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--article-h3-size);
  letter-spacing: 0;
  line-height: 1.4;
  text-wrap: pretty;
}

.promo-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.promo-act {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 0.6rem;
}

#related-posts {
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  padding-top: 2.5rem;
  padding-inline: var(--gutter);
}

#related-posts > h2 {
  margin-block: 0 1rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--article-h2-size);
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.related-deck {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--border);
}

.related-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem 1.25rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.related-card h3 {
  grid-column: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--article-h3-size);
  letter-spacing: 0;
  line-height: 1.45;
  text-wrap: pretty;
}

.related-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.related-card h3 a:hover {
  color: var(--accent-dark);
}

.related-card p {
  grid-column: 1;
  margin: 0;
  color: var(--muted);
  font-size: var(--blog-small-size);
  line-height: 1.75;
}

.related-meta {
  grid-column: 1 / -1;
}

.related-more {
  grid-column: 2;
  grid-row: 2 / span 2;
  align-self: center;
  color: var(--accent-dark);
  font-size: var(--blog-small-size);
  font-weight: 700;
  white-space: nowrap;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  padding-top: 1.25rem;
  padding-bottom: 2.5rem;
  padding-inline: var(--gutter);
}

.post-nav-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--bg);
  color: var(--ink);
  text-decoration: none;
  transition:
    border-color 160ms ease,
    background-color 160ms ease;
}

.post-nav-card:hover {
  border-color: var(--accent);
  background: var(--bg-panel);
}

.post-nav-card span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--blog-meta-size);
}

.post-nav-card strong {
  font-size: var(--blog-small-size);
  line-height: 1.55;
  text-wrap: pretty;
}

.post-nav-card.is-next {
  grid-column: 2;
  text-align: right;
}

@media (max-width: 48rem) {
  .blog-index-head,
  .blog-bottom-panel,
  .promo-end {
    align-items: flex-start;
    flex-direction: column;
  }

  .blog-index-note {
    display: none;
  }

  .post-deck {
    grid-template-columns: 1fr;
  }

  .post-card {
    border-right: 0;
  }

  .blog-bottom-actions,
  .promo-act {
    width: 100%;
    flex-direction: row;
  }

  .blog-bottom-actions > *,
  .promo-act > * {
    flex: 1 1 auto;
    text-align: center;
  }

  .related-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .related-more {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 36rem) {
  .stat-grid,
  #post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-card.is-next {
    grid-column: 1;
    text-align: left;
  }

  .blog-bottom-actions,
  .promo-act {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tag-filter-btn,
  .post-card,
  .post-nav-card {
    transition: none;
  }
}