:root {
  --blog-reading: 56rem;
  --blog-hero-title: 2.6rem;
  --blog-list-title: 3rem;
  --blog-body-size: 1rem;
  --blog-body-leading: 1.85;
  --blog-transition: 180ms ease;
  --blog-rule-size: 0.25rem;
  --blog-card-shadow: 0 1rem 2.5rem color-mix(in srgb, var(--color-ink) 10%, transparent);
  --blog-card-shadow-hover: 0 1.25rem 3rem color-mix(in srgb, var(--color-ink) 16%, transparent);
}

.no-break {
  white-space: nowrap;
}

.blog-index-hero,
.blog-catalogue {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.blog-index-hero {
  padding-top: clamp(4rem, 9vw, 8rem);
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.blog-index-hero::before {
  display: block;
  width: 100%;
  height: var(--blog-rule-size);
  margin-bottom: 1.5rem;
  background: linear-gradient(
    to right,
    var(--color-accent) 0 72%,
    var(--color-ink) 72% 100%
  );
  content: "";
}

.blog-kicker,
.section-label,
.blog-result-count {
  font-family: var(--font-mono);
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-kicker {
  margin: 0 0 1rem;
  font-size: 0.78rem;
}

.blog-index-hero h1 {
  max-width: 15ch;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6vw, var(--blog-list-title));
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  text-wrap: pretty;
}

.blog-index-hero p {
  max-width: 44rem;
  margin: 1.4rem 0 0;
  color: var(--color-muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.blog-catalogue {
  padding-top: 2rem;
  padding-bottom: clamp(5rem, 10vw, 9rem);
}

.blog-list-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-line);
}

.section-label {
  margin: 0 0 0.5rem;
  font-size: 0.74rem;
}

.blog-list-heading h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.25rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-wrap: pretty;
}

.blog-result-count {
  flex: none;
  margin: 0;
  font-size: 0.78rem;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-block: 1.5rem 2rem;
}

.tag-filter-button {
  min-height: 2.6rem;
  padding: 0.65rem 1.05rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 650;
  cursor: pointer;
  transition:
    border-color var(--blog-transition),
    background-color var(--blog-transition),
    color var(--blog-transition),
    transform var(--blog-transition);
}

.tag-filter-button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
  transform: translateY(-0.1rem);
}

.tag-filter-button:focus-visible {
  outline: 0.2rem solid color-mix(in srgb, var(--color-accent) 30%, transparent);
  outline-offset: 0.15rem;
}

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

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.article-card,
.related-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(1.3rem, 3vw, 1.75rem);
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--blog-card-shadow);
  transition:
    border-color var(--blog-transition),
    box-shadow var(--blog-transition),
    transform var(--blog-transition);
}

.article-card::before,
.related-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.2rem;
  background: var(--color-accent);
  content: "";
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.article-card:hover,
.related-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 55%, var(--color-line));
  box-shadow: var(--blog-card-shadow-hover);
  transform: translateY(-0.25rem);
}

.article-card:hover::before,
.related-card:hover::before {
  opacity: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.article-meta .badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-inverse);
  font-family: var(--font-body);
  font-weight: 700;
}

.article-meta time {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}

.article-card h3,
.related-card h3 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.3rem);
  letter-spacing: -0.015em;
  line-height: 1.45;
  text-wrap: pretty;
}

.article-card p,
.related-card p {
  margin: 0.85rem 0 1.2rem;
  color: var(--color-muted);
  font-size: 0.96rem;
  line-height: 1.75;
}

.article-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.4rem;
  margin-top: auto;
  color: var(--color-accent-strong);
  font-weight: 750;
  text-decoration: none;
}

.article-link::after {
  content: "→";
  transition: transform var(--blog-transition);
}

.article-link:hover::after {
  transform: translateX(0.25rem);
}

.blog-loading,
.blog-empty,
.blog-noscript {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
  color: var(--color-muted);
  text-align: center;
}

.breadcrumbs {
  width: min(100%, calc(var(--blog-reading) + (2 * var(--gutter))));
  margin-top: 1.5rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
  color: var(--color-muted);
  font-size: 0.88rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li:not(:last-child)::after {
  margin-left: 0.45rem;
  color: var(--color-line);
  content: "/";
}

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

.breadcrumbs a:hover {
  color: var(--color-accent-strong);
}

.article-hero {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + (2 * var(--gutter)));
  margin: clamp(2rem, 5vw, 4rem) auto 0;
  padding: clamp(1.5rem, 4vw, 2.5rem) var(--gutter) clamp(2rem, 5vw, 3rem);
  border-top: var(--blog-rule-size) solid var(--color-accent);
  border-bottom: 1px solid var(--color-line);
}

.article-hero::before {
  display: block;
  margin-bottom: 1rem;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  content: "TE / JOURNAL";
}

.article-hero .article-meta {
  margin-bottom: 1.15rem;
}

.article-hero h1 {
  max-width: 22ch;
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, var(--blog-hero-title));
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  text-wrap: pretty;
}

.article-hero > p,
.article-hero .article-summary {
  max-width: 48rem;
  margin: 1.2rem 0 0;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.reading-wrap {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + (2 * var(--gutter)));
  margin-inline: auto;
  padding: 1.5rem var(--gutter) 0;
}

.prose {
  counter-reset: article-section;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--blog-body-size);
  line-height: var(--blog-body-leading);
}

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

.prose h2 {
  counter-increment: article-section;
  margin: 3rem 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  letter-spacing: -0.015em;
  line-height: 1.35;
  text-wrap: pretty;
}

.prose h2::before {
  display: inline-block;
  min-width: 2.15rem;
  margin-right: 0.65rem;
  padding: 0.12rem 0.45rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.72em;
  line-height: 1.55;
  vertical-align: 0.14em;
  content: counter(article-section, decimal-leading-zero);
}

.prose h3 {
  margin: 2rem 0 0.7rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 2.4vw, 1.3rem);
  letter-spacing: -0.01em;
  line-height: 1.45;
  text-wrap: pretty;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose table,
.prose .table-scroll,
.prose .callout,
.prose .stat-grid,
.prose .check-list,
.prose .verdict {
  margin-block: 1.2rem;
}

.prose ul,
.prose ol {
  padding-left: 1.4rem;
}

.prose li + li {
  margin-top: 0.5rem;
}

.prose a {
  color: var(--color-accent-strong);
  text-decoration-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
  text-underline-offset: 0.2em;
}

.prose blockquote {
  margin-inline: 0;
  padding: 1rem 1.25rem;
  border-left: 0.25rem solid var(--color-accent);
  background: var(--color-panel);
  color: var(--color-muted);
}

.prose blockquote p {
  margin: 0;
}

.table-scroll,
.prose > .data-table {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.prose table {
  width: 100%;
  min-width: 38rem;
  margin: 0;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.prose th,
.prose td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--color-ink);
  color: var(--color-inverse);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.prose tbody tr:nth-child(even) {
  background: var(--color-panel);
}

.prose tbody tr {
  transition: background-color var(--blog-transition);
}

.prose tbody tr:hover {
  background: color-mix(in srgb, var(--color-accent) 9%, var(--color-bg));
}

.prose pre {
  position: relative;
  max-width: 100%;
  padding: 2.8rem 1.2rem 1.2rem;
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--color-inverse) 14%, var(--color-ink));
  border-radius: var(--radius-lg);
  background: var(--color-ink);
  color: var(--color-inverse);
  box-shadow: var(--blog-card-shadow);
}

.prose pre::before {
  position: absolute;
  top: 1rem;
  left: 1.15rem;
  width: 0.62rem;
  height: 0.62rem;
  border-radius: var(--radius-pill);
  background: var(--color-error);
  box-shadow:
    1rem 0 0 var(--color-warning),
    2rem 0 0 var(--color-success);
  content: "";
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose :not(pre) > code {
  padding: 0.12rem 0.35rem;
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-accent-strong);
}

.callout {
  position: relative;
  padding: 1rem 1.2rem 1rem 3.4rem;
  border-left: 0.25rem solid var(--color-accent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-bg));
}

.callout::before {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: grid;
  width: 1.6rem;
  height: 1.6rem;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-inverse);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  content: "i";
}

.callout.warning {
  border-left-color: var(--color-warning);
  background: color-mix(in srgb, var(--color-warning) 10%, var(--color-bg));
}

.callout.warning::before {
  background: var(--color-warning);
  content: "!";
}

.callout.success {
  border-left-color: var(--color-success);
  background: color-mix(in srgb, var(--color-success) 10%, var(--color-bg));
}

.callout.success::before {
  background: var(--color-success);
  content: "✓";
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.stat-card {
  position: relative;
  min-width: 0;
  padding: 1.15rem;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-panel);
}

.stat-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.22rem;
  background: var(--color-accent);
  content: "";
}

.stat-card:nth-child(even) {
  background: color-mix(in srgb, var(--color-success) 8%, var(--color-bg));
}

.stat-card:nth-child(even)::before {
  background: var(--color-success);
}

.stat-card:nth-child(3n)::before {
  background: var(--color-warning);
}

.stat-num {
  display: block;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  font-weight: 800;
  line-height: 1.2;
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.check-list {
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.check-list li + li {
  margin-top: 0.6rem;
}

.verdict {
  padding: 1.05rem 1.2rem;
  border-left: 0.3rem solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-accent-soft);
  color: var(--color-text);
}

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

.promo-block {
  position: relative;
  box-sizing: border-box;
  display: flex;
  width: 100%;
  max-width: calc(var(--blog-reading) + (2 * var(--gutter)));
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin: clamp(3rem, 7vw, 5rem) auto 0;
  padding: clamp(1.5rem, 4vw, 2.4rem) var(--gutter);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-accent) 65%, var(--color-ink));
  border-radius: var(--radius-xl);
  background: linear-gradient(
    135deg,
    var(--color-ink),
    color-mix(in srgb, var(--color-accent) 50%, var(--color-ink))
  );
  color: var(--color-inverse);
  box-shadow: var(--blog-card-shadow-hover);
}

.promo-block::before {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    color-mix(in srgb, var(--color-inverse) 17%, transparent) 0.08rem,
    transparent 0.09rem
  );
  background-size: 1rem 1rem;
  content: "";
  pointer-events: none;
}

.promo-block > * {
  position: relative;
  z-index: 1;
}

.promo-block h2 {
  margin: 0;
  color: var(--color-inverse);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.promo-block p {
  max-width: 40rem;
  margin: 0.7rem 0 0;
  color: var(--color-inverse-muted);
  line-height: 1.7;
}

.promo-block .btn-primary {
  flex: none;
  border-color: var(--color-inverse);
  background: var(--color-inverse);
  color: var(--color-accent-strong);
}

.promo-block .btn-primary:hover {
  border-color: var(--color-panel);
  background: var(--color-panel);
  color: var(--color-accent-strong);
}

#related-posts,
#post-nav {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + (2 * var(--gutter)));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

#related-posts {
  padding-top: 3rem;
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

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

.related-card {
  padding: 1.1rem;
  box-shadow: none;
}

.related-card h3 {
  font-size: 1.05rem;
}

.related-card p {
  display: -webkit-box;
  overflow: hidden;
  font-size: 0.88rem;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  padding-top: 1.5rem;
  padding-bottom: 3rem;
}

#post-nav.has-single-link {
  grid-template-columns: minmax(0, 1fr);
}

.post-nav-link {
  position: relative;
  min-width: 0;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color var(--blog-transition),
    transform var(--blog-transition),
    box-shadow var(--blog-transition);
}

.post-nav-link::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.2rem;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--color-accent);
  content: "";
  opacity: 0;
  transition: opacity var(--blog-transition);
}

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

.post-nav-link:hover::before {
  opacity: 1;
}

.post-nav-link span {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.post-nav-link strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.55;
}

@media (max-width: 860px) {
  .prose table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .blog-list-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.6rem;
  }

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

  #post-nav {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .article-hero {
    padding-inline: 1.5rem;
  }

  .reading-wrap,
  .breadcrumbs,
  #related-posts,
  #post-nav,
  .promo-block {
    padding-inline: 1.25rem;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  .tag-filter {
    gap: 0.5rem;
  }

  .tag-filter-button {
    padding-inline: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tag-filter-button,
  .article-card,
  .related-card,
  .article-card::before,
  .related-card::before,
  .article-link::after,
  .post-nav-link,
  .post-nav-link::before,
  .prose tbody tr {
    transition: none;
  }

  .tag-filter-button:hover,
  .article-card:hover,
  .related-card:hover,
  .post-nav-link:hover,
  .article-link:hover::after {
    transform: none;
  }
}