:root {
  --blog-reading-width: 48rem;
  --blog-list-width: 72rem;
  --blog-shadow: 0 1rem 2.8rem rgba(11, 23, 51, 0.08);
  --blog-shadow-hover: 0 1.25rem 3rem rgba(11, 23, 51, 0.12);
  --blog-transition: 180ms ease;
  --blog-line-height: 1.85;
  --blog-card-min: 18rem;
}

.blog-hero {
  max-width: var(--blog-list-width);
  padding-top: clamp(4.5rem, 9vw, 7.5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.blog-kicker,
.section-eyebrow {
  display: inline-block;
  margin-bottom: 0.85rem;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-hero h1 {
  max-width: 16ch;
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  text-wrap: pretty;
}

.blog-hero p {
  max-width: 44rem;
  margin: 1.4rem 0 0;
  color: var(--color-ink-muted);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.8;
}

.blog-directory {
  max-width: var(--blog-list-width);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.blog-directory-head {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.blog-directory-head h2 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag-filter {
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-ink-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 650;
  cursor: pointer;
  transition:
    border-color var(--blog-transition),
    background-color var(--blog-transition),
    color var(--blog-transition);
}

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

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

.tag-filter.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-panel);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--blog-card-min)), 1fr));
  gap: 1rem;
}

.article-card {
  display: flex;
  min-width: 0;
  min-height: 20rem;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 1.8rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--blog-shadow);
  transition:
    transform var(--blog-transition),
    border-color var(--blog-transition),
    box-shadow var(--blog-transition);
}

.article-card:hover {
  transform: translateY(-0.2rem);
  border-color: var(--border-accent);
  box-shadow: var(--blog-shadow-hover);
}

.article-card-meta,
.related-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-card h2,
.article-card h3 {
  margin: 1.15rem 0 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.article-card h2 a,
.article-card h3 a {
  color: var(--color-ink);
  text-decoration: none;
}

.article-card h2 a:hover,
.article-card h3 a:hover {
  color: var(--color-accent-deep);
}

.article-card p {
  margin: 1rem 0 1.5rem;
  color: var(--color-ink-muted);
  font-size: 0.96rem;
  line-height: 1.75;
}

.article-card-link {
  margin-top: auto;
  color: var(--color-accent-deep);
  font-weight: 750;
  text-decoration: none;
}

.article-card-link:hover {
  color: var(--color-accent);
}

.blog-empty {
  margin: 1.5rem 0 0;
  padding: 2rem;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-panel-soft);
  color: var(--color-ink-muted);
  text-align: center;
}

.blog-empty[hidden] {
  display: none;
}

.breadcrumb {
  max-width: var(--blog-reading-width);
  margin-top: 1.5rem;
  margin-inline: auto;
  padding-top: 0.25rem;
  color: var(--color-ink-muted);
  font-size: 0.88rem;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--color-border-strong);
}

.breadcrumb a {
  color: var(--color-accent-deep);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.article-hero {
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.25rem, 5vw, 3.5rem);
}

.article-hero-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.65rem 0.9rem;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.article-hero h1 {
  max-width: 100%;
  margin: 1.2rem 0 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.16;
  text-wrap: pretty;
}

.article-hero-summary {
  margin: 1.3rem 0 0;
  color: var(--color-ink-muted);
  font-size: 1.08rem;
  line-height: 1.85;
}

.article-body,
.reading-wrap {
  width: min(100%, var(--blog-reading-width));
  margin-inline: auto;
}

.article-body {
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: var(--blog-line-height);
}

.article-body > :first-child {
  margin-top: 0;
}

.article-body h2 {
  margin: 3.2rem 0 1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  scroll-margin-top: var(--toc-offset);
  text-wrap: pretty;
}

.article-body h3 {
  margin: 2.2rem 0 0.8rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

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

.article-body ul,
.article-body ol {
  margin: 1.1rem 0;
  padding-left: 1.5rem;
}

.article-body li + li {
  margin-top: 0.55rem;
}

.article-body a {
  color: var(--color-accent-deep);
  text-underline-offset: 0.18em;
}

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

.article-body blockquote {
  margin: 1.6rem 0;
  padding: 1rem 1.2rem;
  border-left: 0.2rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel-soft);
  color: var(--color-ink-muted);
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  padding: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-terminal);
  color: var(--color-terminal-text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
}

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

.article-body :not(pre) > code {
  padding: 0.12rem 0.35rem;
  border-radius: var(--radius-xs);
  background: var(--color-panel-soft);
  color: var(--color-accent-deep);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 9.5rem), 1fr));
  gap: 0.8rem;
  margin: 1.6rem 0;
}

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

.stat-num {
  display: block;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1.25;
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  color: var(--color-ink-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.check-list {
  margin: 1.5rem 0;
  padding: 1.2rem 1.2rem 1.2rem 2.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
}

.check-list li + li {
  margin-top: 0.7rem;
}

.verdict {
  margin: 1.6rem 0;
  padding: 1rem 1.15rem;
  border-left: 0.22rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--wash-accent);
  color: var(--color-ink);
}

.verdict strong {
  color: var(--color-accent-deep);
}

.promo-block {
  display: flex;
  max-width: var(--blog-reading-width);
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: clamp(3rem, 7vw, 5rem);
  margin-inline: auto;
  padding: clamp(1.4rem, 4vw, 2rem);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  background: var(--wash-accent);
}

.promo-block h2 {
  margin: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.promo-block p {
  margin: 0.5rem 0 0;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

#related-posts {
  max-width: var(--blog-reading-width);
  margin-inline: auto;
  padding-top: 2.25rem;
}

#related-posts[hidden] {
  display: none;
}

#related-posts > h2 {
  margin: 0 0 1.1rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  gap: 0.8rem;
}

.related-card {
  padding: 1.2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.related-card h3 {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

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

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

.related-card p {
  margin: 0.65rem 0 0;
  color: var(--color-ink-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.post-navigation {
  display: grid;
  max-width: var(--blog-reading-width);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-inline: auto;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
}

.post-navigation[hidden] {
  display: none;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-ink);
  text-decoration: none;
  transition:
    border-color var(--blog-transition),
    transform var(--blog-transition);
}

.post-nav-card:hover {
  transform: translateY(-0.15rem);
  border-color: var(--color-accent);
}

.post-nav-label {
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.post-nav-card strong {
  font-size: 0.96rem;
  line-height: 1.5;
  text-wrap: pretty;
}

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

@media (min-width: 52rem) {
  .blog-directory-head {
    grid-template-columns: minmax(12rem, 0.7fr) minmax(0, 1.3fr);
    align-items: end;
  }

  .tag-filters {
    justify-content: flex-end;
  }
}

@media (max-width: 42rem) {
  .blog-hero {
    padding-top: 3.5rem;
  }

  .article-card {
    min-height: auto;
  }

  .promo-block {
    align-items: flex-start;
    flex-direction: column;
  }

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

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

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

  .article-card:hover,
  .post-nav-card:hover {
    transform: none;
  }
}