:root {
  --blog-reading-width: 48rem;
  --blog-pill-radius: 999px;
  --blog-card-radius: var(--cut-small);
  --blog-card-shadow: var(--shadow-hard);
  --blog-accent-shadow: var(--shadow-accent);
  --blog-success-shadow: var(--shadow-success);
  --blog-rule-width: 0.25rem;
  --blog-route-size: clamp(13rem, 27vw, 23rem);
  --blog-fab-offset: 1.25rem;
  --blog-fab-height: 3rem;
  --blog-motion-fast: 160ms;
  --blog-motion-medium: 240ms;
}

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

.blog-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--blog-rule-width) solid var(--color-border);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--color-grid) 0.0625rem, transparent 0.0625rem),
    linear-gradient(90deg, var(--color-grid) 0.0625rem, transparent 0.0625rem);
  background-size: 2.5rem 2.5rem;
}

.blog-hero::after {
  position: absolute;
  inset: auto 0 0;
  height: var(--blog-rule-width);
  content: "";
  background-color: var(--color-accent);
}

.blog-hero-grid {
  min-height: clamp(31rem, 68vh, 43rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(17rem, 0.72fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.blog-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 43rem;
}

.blog-hero-copy h1 {
  max-width: 12ch;
  margin-block: 0.8rem 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 6vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.blog-hero-copy > p {
  max-width: 42rem;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.blog-hero-copy .button-row {
  margin-top: 1.75rem;
}

.blog-route-mark {
  position: relative;
  width: var(--blog-route-size);
  aspect-ratio: 1;
  justify-self: end;
  border: var(--blog-rule-width) solid var(--color-border-bright);
  background-color: var(--color-panel);
  box-shadow: var(--blog-card-shadow);
  clip-path: polygon(
    var(--cut-medium) 0,
    100% 0,
    100% calc(100% - var(--cut-medium)),
    calc(100% - var(--cut-medium)) 100%,
    0 100%,
    0 var(--cut-medium)
  );
}

.blog-route-number {
  position: absolute;
  inset: 50% auto auto 50%;
  translate: -50% -52%;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: clamp(6rem, 15vw, 11rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  -webkit-text-stroke: 0.18rem var(--color-border-bright);
  color: transparent;
}

.blog-route-line {
  position: absolute;
  top: 54%;
  left: -12%;
  width: 124%;
  height: var(--blog-rule-width);
  background-color: var(--color-accent);
  box-shadow: var(--blog-accent-shadow);
  transform: rotate(-12deg);
  transform-origin: center;
}

.blog-route-node {
  position: absolute;
  width: 1rem;
  aspect-ratio: 1;
  border: 0.2rem solid var(--color-bg);
  border-radius: var(--blog-pill-radius);
  background-color: var(--color-success);
  box-shadow: var(--blog-success-shadow);
}

.blog-route-node-start {
  top: 64%;
  left: 8%;
}

.blog-route-node-end {
  top: 38%;
  right: 7%;
}

.blog-route-label {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.blog-catalog {
  position: relative;
}

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-block: 2rem 2.25rem;
}

.blog-filter-button {
  min-height: 2.65rem;
  padding: 0.65rem 1rem;
  border: 0.125rem solid var(--color-border);
  border-radius: var(--blog-pill-radius);
  background-color: var(--color-panel);
  color: var(--color-text-muted);
  font: 700 0.88rem/1 var(--font-body);
  cursor: pointer;
  transition:
    border-color var(--blog-motion-fast) ease,
    color var(--blog-motion-fast) ease,
    background-color var(--blog-motion-fast) ease,
    transform var(--blog-motion-fast) ease;
}

.blog-filter-button:hover,
.blog-filter-button:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.blog-filter-button:active {
  transform: translateY(0.125rem);
}

.blog-filter-button.is-active {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: var(--color-bg);
  box-shadow: var(--blog-accent-shadow);
}

.blog-article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}

.blog-article-card,
.related-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  border: 0.125rem solid var(--color-border);
  border-radius: var(--blog-card-radius);
  background-color: var(--color-panel);
  box-shadow: var(--blog-card-shadow);
  clip-path: polygon(
    var(--cut-small) 0,
    100% 0,
    100% calc(100% - var(--cut-small)),
    calc(100% - var(--cut-small)) 100%,
    0 100%,
    0 var(--cut-small)
  );
}

.blog-article-card {
  min-height: 19rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  transition:
    border-color var(--blog-motion-medium) ease,
    transform var(--blog-motion-medium) ease,
    box-shadow var(--blog-motion-medium) ease;
}

.blog-article-card::before,
.related-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 5.5rem;
  height: var(--blog-rule-width);
  content: "";
  background-color: var(--color-accent);
}

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

.article-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.65rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
}

.article-meta .tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding-inline: 0.65rem;
  border: 0.0625rem solid var(--color-border);
  border-radius: var(--blog-pill-radius);
  color: var(--color-accent);
  white-space: nowrap;
}

.blog-article-card h3,
.related-card h3 {
  margin-block: 1.15rem 0.8rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.blog-article-card p,
.related-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.article-link {
  width: fit-content;
  margin-top: auto;
  padding-top: 1.25rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.article-link:hover,
.article-link:focus-visible {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 0.3rem;
}

.blog-empty {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border: 0.125rem dashed var(--color-border);
  color: var(--color-text-muted);
  text-align: center;
}

.blog-index-promo,
.promo-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border: var(--blog-rule-width) solid var(--color-border-bright);
  border-radius: var(--blog-card-radius);
  background-color: var(--color-panel-strong);
  box-shadow: var(--blog-accent-shadow);
  clip-path: polygon(
    var(--cut-medium) 0,
    100% 0,
    100% calc(100% - var(--cut-medium)),
    calc(100% - var(--cut-medium)) 100%,
    0 100%,
    0 var(--cut-medium)
  );
}

.blog-index-promo h2,
.promo-block h2 {
  margin-block: 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.blog-index-promo p,
.promo-block p {
  max-width: 42rem;
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.promo-brand {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.reading-wrap {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin-inline: auto;
}

.article-breadcrumbs {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin: 0 auto;
  padding-top: max(1.2rem, 2.25rem);
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

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

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

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

.article-breadcrumbs a:hover,
.article-breadcrumbs a:focus-visible {
  color: var(--color-accent);
}

.article-hero {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin-inline: auto;
  padding-block: 2.5rem 2rem;
  border-bottom: 0.125rem solid var(--color-border);
}

.article-hero .article-meta {
  margin-bottom: 1rem;
}

.article-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.article-hero-summary {
  margin: 1.2rem 0 0;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.prose {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin-inline: auto;
  padding-block: 1.5rem 2.5rem;
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.85;
}

.prose h2 {
  margin-block: 2.35rem 0.9rem;
  padding-left: 0.85rem;
  border-left: var(--blog-rule-width) solid var(--color-accent);
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  scroll-margin-top: var(--toc-top);
}

.prose h3 {
  margin-block: 1.75rem 0.7rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose .table-scroll,
.prose .stat-grid,
.prose .check-list,
.prose .verdict {
  margin-block: 1rem;
}

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

.prose li + li {
  margin-top: 0.45rem;
}

.prose a {
  color: var(--color-accent);
  text-underline-offset: 0.2rem;
}

.prose blockquote {
  padding: 1rem 1.25rem;
  border-left: var(--blog-rule-width) solid var(--color-border-bright);
  background-color: var(--color-panel);
  color: var(--color-text-muted);
}

.prose code {
  overflow-wrap: anywhere;
  font-family: var(--font-mono);
  color: var(--color-warn);
}

.prose pre {
  overflow-x: auto;
  padding: 1.15rem;
  border: 0.125rem solid var(--color-border);
  border-radius: var(--blog-card-radius);
  background-color: var(--color-panel);
  line-height: 1.65;
}

.table-scroll {
  overflow-x: auto;
}

.prose > .data-table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.8rem;
  border: 0.0625rem solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background-color: var(--color-panel-strong);
  color: var(--color-text);
}

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

.stat-card {
  min-width: 0;
  padding: 1.1rem;
  border: 0.125rem solid var(--color-border);
  border-radius: var(--blog-card-radius);
  background-color: var(--color-panel);
  box-shadow: var(--blog-card-shadow);
}

.stat-num {
  display: block;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 800;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.stat-label {
  display: block;
  margin-top: 0.45rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.check-list {
  padding: 1.15rem 1.15rem 1.15rem 2.6rem;
  border: 0.125rem solid var(--color-border);
  background-color: var(--color-panel);
}

.check-list li::marker {
  color: var(--color-success);
}

.verdict {
  padding: 1rem 1.15rem;
  border-left: 0.35rem solid var(--color-accent);
  background-color: var(--color-panel-strong);
  color: var(--color-text);
}

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

.promo-block {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin: 1rem auto 3rem;
}

#related-posts {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin: 0 auto;
  padding-block: 1rem 2.5rem;
  border-top: 0.125rem solid var(--color-border);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

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

.related-card {
  min-height: 13rem;
  padding: 1.25rem;
}

#post-nav {
  width: min(100% - (var(--gutter) * 2), var(--blog-reading-width));
  margin: 0 auto;
  padding-bottom: 4rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.post-nav-card {
  display: flex;
  min-width: 0;
  min-height: 8rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.2rem;
  border: 0.125rem solid var(--color-border);
  border-radius: var(--blog-card-radius);
  background-color: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
  box-shadow: var(--blog-card-shadow);
  transition:
    border-color var(--blog-motion-fast) ease,
    transform var(--blog-motion-fast) ease;
}

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

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

.post-nav-label {
  margin-bottom: 0.55rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.post-nav-card strong {
  font-size: 1rem;
  line-height: 1.6;
  text-wrap: pretty;
}

.float-cta {
  position: fixed;
  right: var(--blog-fab-offset);
  bottom: var(--blog-fab-offset);
  z-index: 30;
  display: inline-flex;
  min-height: var(--blog-fab-height);
  max-width: calc(100vw - (var(--blog-fab-offset) * 2));
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.7rem 1.05rem;
  border: 0.125rem solid var(--color-success);
  border-radius: var(--blog-pill-radius);
  background-color: var(--color-success);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: var(--blog-success-shadow);
}

.float-cta svg {
  width: 1.15rem;
  height: 1.15rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.float-cta:hover,
.float-cta:focus-visible {
  border-color: var(--color-text);
  color: var(--color-bg);
}

body:has(.float-cta) main {
  padding-bottom: calc(var(--blog-fab-height) + var(--blog-fab-offset));
}

@media (max-width: 52rem) {
  .blog-hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .blog-route-mark {
    justify-self: start;
  }

  .blog-article-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 40rem) {
  .blog-hero-grid {
    padding-block: 3.5rem;
  }

  .blog-hero-copy h1 {
    font-size: clamp(2rem, 10vw, 2.5rem);
  }

  .blog-route-mark {
    width: min(100%, 17rem);
  }

  .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 {
    padding-block: 2rem 1.5rem;
  }

  .article-hero h1 {
    font-size: clamp(1.8rem, 9vw, 2.3rem);
  }

  .prose {
    padding-top: 1rem;
  }

  .prose h2,
  #related-posts > h2 {
    font-size: 1.45rem;
  }

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

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

  .float-cta {
    right: var(--gutter);
    bottom: var(--gutter);
    max-width: calc(100vw - (var(--gutter) * 2));
  }
}

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