.blog-index-page {
  background:
    linear-gradient(145deg, var(--color-white-soft), var(--color-bg) 48%, var(--color-blue-soft));
  color: var(--color-text);
  font-family: var(--font-body);
}

.blog-hero {
  overflow: hidden;
  padding-block: clamp(2.5rem, 7vw, 5.5rem);
  position: relative;
}

.blog-hero::before {
  background:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 3rem 3rem;
  content: "";
  inset: 0;
  mask-image: linear-gradient(to bottom, var(--color-text), transparent);
  opacity: 0.28;
  pointer-events: none;
  position: absolute;
}

.blog-hero-panel {
  align-items: end;
  backdrop-filter: blur(1.25rem);
  background: linear-gradient(135deg, var(--color-white-strong), var(--color-panel-blue));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-panel);
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
  overflow: hidden;
  padding: clamp(1.5rem, 5vw, 4rem);
  position: relative;
}

.blog-hero-panel::after {
  background: var(--color-warn);
  border-radius: var(--radius-pill);
  content: "";
  height: 0.75rem;
  position: absolute;
  right: clamp(1.5rem, 4vw, 3rem);
  top: clamp(1.5rem, 4vw, 3rem);
  width: 0.75rem;
}

.blog-hero-copy {
  max-width: 46rem;
  position: relative;
  z-index: 1;
}

.blog-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin-block: 1.2rem 1rem;
  text-wrap: pretty;
}

.blog-hero-copy > p {
  color: var(--color-text-muted);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.8;
  margin: 0;
  max-width: 42rem;
}

.blog-hero-facts {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.blog-fact {
  background: var(--color-panel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-height: 7rem;
  padding: 1.2rem;
}

.blog-fact:first-child {
  background: var(--color-accent);
  color: var(--color-white-strong);
  grid-column: 1 / -1;
}

.blog-fact strong {
  font-family: var(--font-mono);
  font-size: 1.25rem;
}

.blog-fact span {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.blog-fact:first-child span {
  color: var(--color-white-soft);
}

.blog-catalog {
  position: relative;
}

.blog-list-heading {
  align-items: end;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.blog-list-heading h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0.35rem 0 0;
  text-wrap: pretty;
}

.blog-list-heading > p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

.section-kicker {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  margin: 0;
  text-transform: uppercase;
}

.blog-filter {
  display: flex;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
  overflow-x: auto;
  padding-block: 0.2rem 0.65rem;
  scrollbar-width: thin;
}

.blog-filter-button {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  cursor: pointer;
  flex: 0 0 auto;
  font: inherit;
  font-size: 0.9rem;
  padding: 0.65rem 1rem;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

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

.blog-filter-button:focus-visible {
  outline: 3px solid var(--color-blue-medium);
  outline-offset: 2px;
}

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

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

.article-card {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  min-height: 19rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  text-decoration: none;
  transition:
    box-shadow 180ms ease,
    transform 180ms ease;
}

.article-card:first-child {
  background: linear-gradient(145deg, var(--color-panel-blue), var(--color-panel));
  grid-row: span 2;
  min-height: 25rem;
}

.article-card:hover {
  box-shadow: var(--shadow-panel);
  transform: translateY(-3px);
}

.article-card:focus-visible,
.related-card:focus-visible,
.post-nav-card:focus-visible {
  outline: 3px solid var(--color-blue-medium);
  outline-offset: 3px;
}

.article-meta {
  align-items: center;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  gap: 0.75rem;
  justify-content: flex-start;
}

.article-card h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin-block: 1.2rem 0.8rem;
  text-wrap: pretty;
}

.article-card p {
  color: var(--color-text-muted);
  line-height: 1.75;
  margin: 0;
}

.article-arrow {
  color: var(--color-accent-dark);
  font-weight: 700;
  margin-top: auto;
  padding-top: 1.5rem;
}

.blog-empty {
  background: var(--color-panel-soft);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin: 0;
  padding: 2rem;
  text-align: center;
}

.blog-note-section {
  padding-bottom: var(--section-space);
}

.blog-note {
  align-items: center;
  background: var(--color-panel-blue-deep);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-panel);
  color: var(--color-text);
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  padding: clamp(1.5rem, 5vw, 3rem);
}

.blog-note h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.02em;
  margin-block: 0.9rem 0.5rem;
  text-wrap: pretty;
}

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

.breadcrumbs {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 1.5rem;
  padding-top: 0.25rem;
}

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

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

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

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

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

.article-hero,
.article-body,
.post-body,
article.prose,
.article-end {
  margin-inline: auto;
  max-width: var(--reading-width, 48rem);
  width: 100%;
}

.article-hero {
  padding-block: clamp(2rem, 6vw, 4rem) clamp(1.5rem, 4vw, 2.5rem);
}

.article-hero .article-meta {
  justify-content: flex-start;
}

.article-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 2.6rem);
  letter-spacing: -0.02em;
  line-height: 1.16;
  margin-block: 1rem 0.9rem;
  text-wrap: pretty;
}

.article-deck {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin: 0;
}

.article-body,
.post-body,
article.prose {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.85;
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

.article-body h2,
.post-body h2,
article.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4vw, 1.6rem);
  letter-spacing: -0.015em;
  line-height: 1.35;
  margin-block: 2.6rem 1rem;
  scroll-margin-top: var(--toc-offset);
  text-wrap: pretty;
}

.article-body h3,
.post-body h3,
article.prose h3 {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3vw, 1.3rem);
  letter-spacing: -0.01em;
  line-height: 1.45;
  margin-block: 2rem 0.75rem;
  text-wrap: pretty;
}

.article-body p,
.post-body p,
article.prose p {
  margin-block: 0 1.25rem;
}

.article-body ul,
.article-body ol,
.post-body ul,
.post-body ol,
article.prose ul,
article.prose ol {
  margin-block: 0 1.5rem;
  padding-left: 1.35rem;
}

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

.article-body a,
.post-body a,
article.prose a {
  color: var(--color-accent-dark);
  text-underline-offset: 0.18em;
}

.article-body blockquote,
.post-body blockquote,
article.prose blockquote {
  background: var(--color-panel-soft);
  border-left: 0.25rem solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-muted);
  margin: 1.75rem 0;
  padding: 1.1rem 1.25rem;
}

.article-body pre,
.post-body pre,
article.prose pre {
  background: var(--color-panel-blue-deep);
  border-radius: var(--radius-md);
  color: var(--color-white-soft);
  font-family: var(--font-mono);
  line-height: 1.65;
  margin-block: 1.5rem;
  overflow-x: auto;
  padding: 1.25rem;
}

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

.stat-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-block: 1.75rem;
}

.stat-card {
  background: var(--color-panel-blue);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 0;
  padding: 1.15rem;
}

.stat-num {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3vw, 1.4rem);
  font-weight: 700;
}

.stat-label {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.check-list {
  background: var(--color-panel-soft);
  border-radius: var(--radius-md);
  list-style: none;
  margin-block: 1.75rem;
  padding: 1.1rem 1.25rem;
}

.check-list li {
  border-bottom: 1px solid var(--color-border);
  margin: 0;
  padding: 0.75rem 0;
}

.check-list li:last-child {
  border-bottom: 0;
}

.verdict {
  background: var(--color-panel-blue);
  border-left: 0.3rem solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-block: 1.75rem;
  padding: 1.15rem 1.25rem;
}

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

.promo-block {
  align-items: center;
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-panel-blue-deep));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-panel);
  color: var(--color-white-strong);
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  margin-block: 2rem 3.5rem;
  padding: clamp(1.5rem, 5vw, 2.75rem);
}

.promo-copy {
  max-width: 34rem;
}

.promo-brand {
  color: var(--color-white-strong);
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.65rem;
  text-wrap: pretty;
}

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

.promo-block > .button {
  background: var(--color-warn);
  color: var(--color-text);
  flex: 0 0 auto;
}

#related-posts {
  margin-block: 0 2.5rem;
}

#related-posts > h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.015em;
  margin-block: 0 1rem;
  text-wrap: pretty;
}

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

.related-card {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.15rem;
  text-decoration: none;
  transition:
    box-shadow 180ms ease,
    transform 180ms ease;
}

.related-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.related-card-meta {
  align-items: center;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  gap: 0.55rem;
}

.related-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  line-height: 1.45;
  margin-block: 0.85rem 0.55rem;
  text-wrap: pretty;
}

.related-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0;
}

.related-card-action {
  color: var(--color-accent-dark);
  font-size: 0.88rem;
  font-weight: 700;
  margin-top: auto;
  padding-top: 1rem;
}

#post-nav {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-block: 0 var(--section-space);
}

.post-nav-card {
  background: var(--color-panel-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
  padding: 1.2rem;
  text-decoration: none;
}

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

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

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

.post-nav-card strong {
  font-size: 0.95rem;
  line-height: 1.55;
  text-wrap: pretty;
}

@media (max-width: 54rem) {
  .blog-hero-panel {
    grid-template-columns: 1fr;
  }

  .blog-hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .blog-fact:first-child {
    grid-column: auto;
  }

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

  .article-card:first-child {
    grid-row: auto;
    min-height: 19rem;
  }

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

@media (max-width: 42rem) {
  .blog-hero {
    padding-block: 1.5rem 2.5rem;
  }

  .blog-hero-panel {
    border-radius: var(--radius-lg);
    padding: 1.25rem;
  }

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

  .blog-fact {
    min-height: auto;
  }

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

  .blog-list-heading {
    gap: 0.75rem;
  }

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

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

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

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

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

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