:root {
  --blog-reading-width: 56rem;
  --blog-column-pad: 1.5rem;
  --blog-card-shadow: 0 1.1rem 2.8rem color-mix(in srgb, var(--color-ink) 10%, transparent);
  --blog-card-shadow-hover: 0 1.4rem 3.2rem color-mix(in srgb, var(--color-ink) 15%, transparent);
  --blog-transition: 180ms ease;
}

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

.blog-index-page,
.article-page {
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
}

.blog-index-hero {
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
  overflow: hidden;
}

.blog-index-hero-panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 4.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(
      125deg,
      var(--color-surface) 0%,
      var(--color-surface) 62%,
      var(--color-surface-soft) 100%
    );
  box-shadow: var(--blog-card-shadow);
}

.blog-index-hero-panel::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  opacity: 0.44;
  background-image:
    radial-gradient(
      circle,
      color-mix(in srgb, var(--color-accent) 34%, transparent) 1px,
      transparent 1px
    );
  background-size: 1.15rem 1.15rem;
  mask-image: linear-gradient(
    to left,
    var(--color-text),
    transparent 58%
  );
}

.blog-index-hero-panel::after {
  position: absolute;
  z-index: -1;
  top: 1.5rem;
  right: 1.5rem;
  width: clamp(5rem, 13vw, 9rem);
  aspect-ratio: 1;
  content: "";
  border: 1px solid color-mix(in srgb, var(--color-accent) 45%, transparent);
  border-radius: var(--radius-lg);
  box-shadow:
    inset 0 0 0 0.65rem color-mix(in srgb, var(--color-accent) 8%, transparent),
    inset 0 0 0 1.25rem color-mix(in srgb, var(--color-accent) 5%, transparent);
}

.blog-index-hero h1 {
  max-width: 13ch;
  margin: 1rem 0 1.1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.08;
  text-wrap: pretty;
}

.blog-index-hero p {
  max-width: 43rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.blog-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.6rem;
}

.blog-list-section {
  padding-block: 0 var(--section-space);
}

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

.blog-list-heading h2 {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.45rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-wrap: pretty;
}

.blog-result-count {
  flex: 0 0 auto;
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.blog-filter-button {
  max-width: 100%;
  padding: 0.65rem 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font: 700 0.88rem/1 var(--font-body);
  cursor: pointer;
  transition:
    border-color var(--blog-transition),
    background-color var(--blog-transition),
    color var(--blog-transition),
    transform var(--blog-transition);
}

.blog-filter-button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
  transform: translateY(-1px);
}

.blog-filter-button.is-active {
  border-color: var(--color-accent-strong);
  background: var(--color-accent-strong);
  color: var(--color-on-ink);
}

.blog-filter-button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-accent) 34%, transparent);
  outline-offset: 3px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem;
}

.article-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 20rem;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 0.5rem 1.5rem color-mix(in srgb, var(--color-ink) 5%, transparent);
  transition:
    border-color var(--blog-transition),
    box-shadow var(--blog-transition),
    transform var(--blog-transition);
}

.article-card::before {
  position: absolute;
  top: 0;
  right: 1.25rem;
  left: 1.25rem;
  height: 3px;
  content: "";
  border-radius: 0 0 var(--radius-xs) var(--radius-xs);
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.article-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 65%, var(--color-border));
  box-shadow: var(--blog-card-shadow);
  transform: translateY(-3px);
}

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

.article-card .article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.article-card .article-meta time {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-card h3 {
  margin: 0 0 0.8rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.1vw, 1.35rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.45;
  text-wrap: pretty;
}

.article-card p {
  margin: 0 0 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.96rem;
  line-height: 1.8;
}

.article-link,
.related-card-link {
  width: fit-content;
  margin-top: auto;
  color: var(--color-accent-strong);
  font-weight: 800;
  text-decoration: none;
}

.article-link::after,
.related-card-link::after {
  display: inline-block;
  margin-left: 0.35rem;
  content: "→";
  transition: transform var(--blog-transition);
}

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

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 2.5rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-muted);
  text-align: center;
}

.blog-service-note {
  padding-block: 0 var(--section-space);
}

.blog-service-note-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(
      circle at 88% 20%,
      color-mix(in srgb, var(--color-accent) 22%, transparent),
      transparent 28%
    ),
    var(--color-ink);
  color: var(--color-on-ink);
}

.blog-service-note h2 {
  margin: 1rem 0 0.65rem;
  color: var(--color-on-ink);
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.blog-service-note p {
  max-width: 43rem;
  margin: 0;
  color: var(--color-on-ink-muted);
  line-height: 1.75;
}

.breadcrumb-wrap,
.article-hero,
.reading-wrap,
.article-end {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading-width) + 2 * var(--blog-column-pad));
  margin-inline: auto;
  padding-inline: var(--blog-column-pad);
}

.article-page .site-header {
  position: relative;
}

.breadcrumb-wrap {
  padding-top: 1.5rem;
}

.breadcrumb a {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

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

.breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

.breadcrumb-separator {
  color: color-mix(in srgb, var(--color-text-muted) 60%, transparent);
}

.article-hero {
  position: relative;
  isolation: isolate;
  margin-top: 1.4rem;
  padding-block: clamp(1.75rem, 4vw, 3rem);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 0.7rem 2.2rem color-mix(in srgb, var(--color-ink) 7%, transparent);
}

.article-hero::before {
  position: absolute;
  z-index: -1;
  top: 1rem;
  bottom: 1rem;
  left: 0;
  width: 0.28rem;
  content: "";
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.article-hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  opacity: 0.35;
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--color-border) 50%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--color-border) 50%, transparent) 1px,
      transparent 1px
    );
  background-size: 1.5rem 1.5rem;
  mask-image: linear-gradient(to left, var(--color-text), transparent 55%);
}

.article-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(11rem, 1fr);
  grid-template-areas: "copy meta";
  align-items: start;
  gap: 2rem;
}

.article-hero-copy {
  grid-area: copy;
  min-width: 0;
}

.article-hero .article-meta-card {
  grid-area: meta;
  display: grid;
  gap: 0;
  min-width: 0;
  padding: 0.35rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-surface-soft) 76%, var(--color-surface));
}

.article-meta-card > * {
  min-width: 0;
  padding-block: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.55;
}

.article-meta-card > * + * {
  border-top: 1px solid var(--color-border);
}

.article-meta-card .tag {
  width: fit-content;
  color: var(--color-accent-strong);
  font-family: var(--font-body);
  font-weight: 800;
}

.article-hero h1 {
  max-width: 21ch;
  margin: 0 0 1rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.18;
  text-wrap: pretty;
}

.article-hero-summary {
  max-width: 45rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.04rem;
  line-height: 1.85;
}

.reading-wrap {
  padding-top: clamp(2.2rem, 5vw, 3.75rem);
  padding-bottom: 1.5rem;
}

.article-body,
.prose,
[data-article-body] {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.85;
  counter-reset: article-section;
}

.article-body h2,
.prose h2,
[data-article-body] h2 {
  position: relative;
  margin: 3.25rem 0 1.2rem;
  padding-left: 2.8rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  font-weight: 850;
  letter-spacing: -0.015em;
  line-height: 1.35;
  text-wrap: pretty;
  counter-increment: article-section;
  scroll-margin-top: var(--toc-offset);
}

.article-body h2::before,
.prose h2::before,
[data-article-body] h2::before {
  position: absolute;
  top: 0.06em;
  left: 0;
  box-sizing: border-box;
  min-width: 2rem;
  padding: 0.3rem 0.35rem;
  content: counter(article-section, decimal-leading-zero);
  border: 1px solid color-mix(in srgb, var(--color-accent) 52%, var(--color-border));
  border-radius: var(--radius-xs);
  background: var(--color-surface-soft);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1;
  text-align: center;
}

.article-body h3,
.prose h3,
[data-article-body] h3 {
  margin: 2.1rem 0 0.8rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 2.2vw, 1.3rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.45;
  text-wrap: pretty;
}

.article-body p,
.prose p,
[data-article-body] p {
  margin: 0 0 1.25rem;
}

.article-body a,
.prose a,
[data-article-body] a {
  color: var(--color-accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.article-body ul,
.article-body ol,
.prose ul,
.prose ol,
[data-article-body] ul,
[data-article-body] ol {
  margin: 1rem 0 1.5rem;
  padding-left: 1.45rem;
}

.article-body li,
.prose li,
[data-article-body] li {
  margin-block: 0.45rem;
  padding-left: 0.25rem;
}

.article-body blockquote,
.prose blockquote,
[data-article-body] blockquote {
  margin: 1.8rem 0;
  padding: 1.25rem 1.4rem;
  border-left: 0.25rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-surface-soft);
  color: var(--color-text);
}

.article-body blockquote p:last-child,
.prose blockquote p:last-child,
[data-article-body] blockquote p:last-child {
  margin-bottom: 0;
}

.article-body table,
.prose table,
[data-article-body] table {
  width: 100%;
  margin: 1.75rem 0;
  border-spacing: 0;
  border-collapse: separate;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: 0.92rem;
  line-height: 1.55;
}

.article-body th,
.article-body td,
.prose th,
.prose td,
[data-article-body] th,
[data-article-body] td {
  min-width: 8.5rem;
  padding: 0.85rem 1rem;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.article-body th:last-child,
.article-body td:last-child,
.prose th:last-child,
.prose td:last-child,
[data-article-body] th:last-child,
[data-article-body] td:last-child {
  border-right: 0;
}

.article-body tr:last-child td,
.prose tr:last-child td,
[data-article-body] tr:last-child td {
  border-bottom: 0;
}

.article-body thead th,
.prose thead th,
[data-article-body] thead th {
  border-color: var(--line-on-ink);
  background: var(--color-ink);
  color: var(--color-on-ink);
  font-weight: 800;
}

.article-body tbody tr:nth-child(even),
.prose tbody tr:nth-child(even),
[data-article-body] tbody tr:nth-child(even) {
  background: var(--color-surface-soft);
}

.article-body tbody tr,
.prose tbody tr,
[data-article-body] tbody tr {
  transition: background-color var(--blog-transition);
}

.article-body tbody tr:hover,
.prose tbody tr:hover,
[data-article-body] tbody tr:hover {
  background: color-mix(in srgb, var(--color-accent) 10%, var(--color-surface));
}

.article-body pre,
.prose pre,
[data-article-body] pre {
  position: relative;
  max-width: 100%;
  margin: 1.8rem 0;
  padding: 2.8rem 1.2rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--line-on-ink);
  border-radius: var(--radius-md);
  background: var(--color-ink);
  color: var(--color-on-ink);
  box-shadow: var(--blog-card-shadow);
}

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

.article-body pre code,
.prose pre code,
[data-article-body] pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.75;
}

.article-body :not(pre) > code,
.prose :not(pre) > code,
[data-article-body] :not(pre) > code {
  padding: 0.16rem 0.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-surface-soft);
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.callout {
  position: relative;
  margin: 1.8rem 0;
  padding: 1.25rem 1.35rem 1.25rem 3.55rem;
  border: 1px solid var(--color-border);
  border-left: 0.28rem solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface));
  color: var(--color-text);
  line-height: 1.75;
}

.callout::before {
  position: absolute;
  top: 1.2rem;
  left: 1.15rem;
  display: grid;
  width: 1.5rem;
  aspect-ratio: 1;
  content: "i";
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent-strong);
  color: var(--color-on-ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 900;
}

.callout strong {
  display: block;
  margin-bottom: 0.25rem;
}

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

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

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

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

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 1.75rem 0;
}

.stat-card {
  position: relative;
  overflow: hidden;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-surface));
}

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

.stat-card:nth-child(3n + 2) {
  background: color-mix(in srgb, var(--color-warning) 8%, var(--color-surface));
}

.stat-card:nth-child(3n + 2)::before {
  background: var(--color-warning);
}

.stat-card:nth-child(3n + 3) {
  background: color-mix(in srgb, var(--color-success) 8%, var(--color-surface));
}

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

.stat-num {
  display: block;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 900;
  line-height: 1.2;
}

.stat-label {
  display: block;
  margin-top: 0.45rem;
  color: var(--color-text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.check-list {
  margin: 1.6rem 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  margin: 0;
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  list-style: none;
}

.check-list li:first-child {
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.check-list li:last-child {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.check-list li + li {
  border-top: 0;
}

.verdict {
  margin: 1.8rem 0;
  padding: 1.2rem 1.35rem;
  border-left: 0.3rem solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-surface-soft);
  color: var(--color-text);
  line-height: 1.75;
}

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

.promo-block {
  position: relative;
  isolation: isolate;
  margin-top: 2.5rem;
  padding: clamp(1.7rem, 4vw, 2.7rem);
  overflow: hidden;
  border: 1px solid var(--line-accent-soft);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(
      135deg,
      var(--color-ink) 0%,
      var(--color-ink-panel) 58%,
      color-mix(in srgb, var(--color-accent-strong) 42%, var(--color-ink)) 100%
    );
  color: var(--color-on-ink);
}

.promo-block::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  opacity: 0.35;
  background-image:
    radial-gradient(
      circle,
      color-mix(in srgb, var(--color-on-ink) 22%, transparent) 1px,
      transparent 1px
    );
  background-size: 1rem 1rem;
  mask-image: linear-gradient(to left, var(--color-text), transparent 70%);
}

.promo-block::after {
  position: absolute;
  z-index: -1;
  right: 1.25rem;
  bottom: 1.25rem;
  width: clamp(4.5rem, 12vw, 7rem);
  aspect-ratio: 1;
  content: "";
  border: 1px solid var(--line-accent-soft);
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 0.7rem color-mix(in srgb, var(--color-accent) 8%, transparent);
}

.promo-block h2 {
  max-width: 18ch;
  margin: 1rem 0 0.75rem;
  padding: 0;
  color: var(--color-on-ink);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  letter-spacing: -0.015em;
  line-height: 1.3;
  text-wrap: pretty;
}

.promo-block h2::before {
  content: none;
}

.promo-block p {
  max-width: 42rem;
  margin: 0;
  color: var(--color-on-ink-muted);
  line-height: 1.75;
}

.promo-block .promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.promo-block .button-primary {
  border-color: var(--color-surface);
  background: var(--color-surface);
  color: var(--color-ink);
}

.promo-block .button-dark {
  border-color: var(--line-accent-soft);
  background: transparent;
  color: var(--color-on-ink);
}

.promo-block .button-primary:hover {
  background: var(--color-surface-soft);
}

.promo-block .button-dark:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

#related-posts {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading-width) + 2 * var(--blog-column-pad));
  margin-inline: auto;
  padding: 2.5rem var(--blog-column-pad) 1rem;
}

#related-posts > h2 {
  margin: 0 0 1.2rem;
  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 {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.15rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition:
    border-color var(--blog-transition),
    box-shadow var(--blog-transition),
    transform var(--blog-transition);
}

.related-card::before {
  position: absolute;
  inset: 0 1rem auto;
  height: 3px;
  content: "";
  border-radius: 0 0 var(--radius-xs) var(--radius-xs);
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.related-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0.8rem 1.8rem color-mix(in srgb, var(--color-ink) 9%, transparent);
  transform: translateY(-3px);
}

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

.related-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.8rem;
}

.related-card-meta time {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.related-card h3 {
  margin: 0 0 0.65rem;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -0.01em;
  line-height: 1.5;
  text-wrap: pretty;
}

.related-card p {
  display: -webkit-box;
  margin: 0 0 1rem;
  overflow: hidden;
  color: var(--color-text-muted);
  font-size: 0.86rem;
  line-height: 1.65;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.related-card-link {
  font-size: 0.86rem;
}

#post-nav {
  box-sizing: border-box;
  display: grid;
  width: 100%;
  max-width: calc(var(--blog-reading-width) + 2 * var(--blog-column-pad));
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-inline: auto;
  padding: 1rem var(--blog-column-pad) 2.5rem;
}

.post-nav-card {
  position: relative;
  min-width: 0;
  padding: 1.15rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  text-decoration: none;
  transition:
    border-color var(--blog-transition),
    box-shadow var(--blog-transition),
    transform var(--blog-transition);
}

.post-nav-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  content: "";
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--blog-transition);
}

.post-nav-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0.75rem 1.7rem color-mix(in srgb, var(--color-ink) 8%, transparent);
  transform: translateY(-2px);
}

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

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

.post-nav-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--color-accent-strong);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
}

.post-nav-card strong {
  display: block;
  font-size: 0.94rem;
  line-height: 1.55;
  text-wrap: pretty;
}

@media (max-width: 860px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .article-card {
    min-height: 0;
  }

  .article-hero-inner {
    grid-template-columns: 1fr;
    grid-template-areas:
      "meta"
      "copy";
  }

  .article-hero .article-meta-card {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    padding: 0.75rem 1rem;
  }

  .article-meta-card > * {
    padding: 0;
  }

  .article-meta-card > * + * {
    padding-left: 1rem;
    border-top: 0;
    border-left: 1px solid var(--color-border);
  }

  .article-body table,
  .prose table,
  [data-article-body] table {
    display: block;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

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

  .related-card p {
    -webkit-line-clamp: 2;
  }
}

@media (max-width: 700px) {
  :root {
    --blog-column-pad: 1.25rem;
  }

  .blog-index-hero {
    padding-block: 2.4rem 3.5rem;
  }

  .blog-index-hero-panel {
    padding: 1.6rem;
  }

  .blog-index-hero-panel::after {
    width: 4.5rem;
  }

  .blog-list-heading,
  .blog-service-note-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .blog-filter {
    flex-wrap: nowrap;
    margin-inline: calc(var(--gutter) * -1);
    padding-inline: var(--gutter);
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .blog-filter-button {
    flex: 0 0 auto;
  }

  .article-hero {
    border-radius: var(--radius-sm);
  }

  .article-hero h1 {
    font-size: clamp(1.85rem, 8.5vw, 2.35rem);
  }

  .article-meta-card > * + * {
    padding-left: 0.7rem;
  }

  .article-body h2,
  .prose h2,
  [data-article-body] h2 {
    margin-top: 2.7rem;
  }

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

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

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

@media (max-width: 430px) {
  .article-hero .article-meta-card {
    display: grid;
    grid-template-columns: 1fr;
  }

  .article-meta-card > * + * {
    padding-top: 0.55rem;
    padding-left: 0;
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .promo-block .promo-actions,
  .blog-service-note .promo-actions {
    display: grid;
    width: 100%;
  }

  .promo-block .button,
  .blog-service-note .button {
    width: 100%;
  }
}

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

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