.blog-hero {
  padding-top: calc(var(--section-space) * 0.8);
  padding-bottom: calc(var(--section-space) * 0.65);
  border-bottom: 1px solid var(--color-border);
}

.blog-hero .wrap {
  max-width: var(--reading-width);
  text-align: center;
}

.blog-hero h1 {
  max-width: 15ch;
  margin: 0 auto;
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 7vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  color: var(--color-text);
}

.blog-hero .lead {
  max-width: 42rem;
  margin: 1.5rem auto 0;
  color: var(--color-muted);
}

.blog-index {
  padding-top: calc(var(--section-space) * 0.7);
  padding-bottom: var(--section-space);
}

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

.blog-toolbar-label {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-filter {
  min-height: 2.25rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-muted);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.tag-filter:hover {
  border-color: var(--color-border-dark);
  color: var(--color-text);
}

.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-white);
}

.blog-result-count {
  flex: 0 0 auto;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-muted);
}

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

.post-card {
  display: flex;
  min-width: 0;
  min-height: 18rem;
  flex-direction: column;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-page);
  box-shadow: var(--shadow-soft);
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}

.post-card:hover {
  border-color: var(--color-border-dark);
  transform: translateY(-2px);
}

.post-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.1rem;
}

.post-card-meta time {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--color-muted);
}

.post-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  line-height: 1.28;
  color: var(--color-text);
}

.post-card p {
  margin: 1rem 0 1.5rem;
  line-height: 1.75;
  color: var(--color-muted);
}

.post-card-link {
  align-self: flex-start;
  margin-top: auto;
  color: var(--color-accent);
  font-weight: 750;
  text-decoration: none;
}

.post-card-link:hover {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

.blog-empty {
  padding: 3rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-muted);
  text-align: center;
}

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

.breadcrumbs {
  max-width: var(--reading-width);
  margin: 1.5rem auto 0;
  padding: 0 var(--gutter);
  font-size: 0.86rem;
  color: var(--color-muted);
}

.breadcrumbs ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

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

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

.article-hero {
  max-width: var(--reading-width);
  margin: 0 auto;
  padding: 3.5rem var(--gutter) 2.75rem;
}

.article-hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-muted);
}

.article-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  color: var(--color-text);
}

.article-summary {
  margin: 1.5rem 0 0;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.8;
  color: var(--color-muted);
}

.article-body {
  max-width: var(--reading-width);
  margin: 0 auto;
  padding: 0 var(--gutter) var(--section-space);
  color: var(--color-text);
}

.article-body h2 {
  margin: 3.5rem 0 1.2rem;
  padding-top: 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.45rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.article-body h3 {
  margin: 2.2rem 0 0.9rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.35;
}

.article-body p,
.article-body li {
  font-size: 1.02rem;
  line-height: 1.9;
}

.article-body p {
  margin: 0 0 1.25rem;
}

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

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

.article-body a {
  color: var(--color-accent);
  text-underline-offset: 0.2em;
}

.article-body blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--color-accent);
  background: var(--color-panel);
  color: var(--color-muted);
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body pre {
  max-width: 100%;
  overflow-x: auto;
  margin: 1.75rem 0;
  padding: 1.2rem;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-sm);
  background: var(--color-terminal);
  color: var(--color-terminal-text);
  font-family: var(--font-mono);
  line-height: 1.7;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.article-body :not(pre) > code {
  padding: 0.12em 0.35em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel);
  color: var(--color-accent-dark);
}

.article-download-card,
.end-download-card,
.dl-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 4rem;
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-soft);
}

.article-download-card h2,
.end-download-card h2,
.dl-card h2 {
  margin: 0 0 0.6rem;
  padding: 0;
  font-size: 1.55rem;
}

.article-download-card p,
.end-download-card p,
.dl-card p {
  margin: 0;
  color: var(--color-muted);
}

.article-download-actions,
.end-download-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 0.65rem;
}

#related-posts {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 var(--gutter) calc(var(--section-space) * 0.65);
}

#related-posts > h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.2rem);
}

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

.related-post-card {
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-page);
}

.related-post-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.45;
}

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

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

.related-post-card p {
  margin: 0.8rem 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-muted);
}

#post-nav {
  display: grid;
  max-width: var(--page-width);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0 auto;
  padding: 0 var(--gutter) var(--section-space);
}

.post-nav-card {
  display: flex;
  min-width: 0;
  min-height: 8rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  text-decoration: none;
}

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

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

.post-nav-label {
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
}

.post-nav-card strong {
  line-height: 1.45;
}

.download-modal[hidden] {
  display: none;
}

.download-modal {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--gutter);
}

.download-modal-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  border: 0;
  background: var(--color-overlay);
  cursor: pointer;
  opacity: 0;
  transition: opacity 180ms ease;
}

.download-modal-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 31rem);
  padding: 2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  box-shadow: var(--shadow-device);
  opacity: 0;
  transform: translateY(0.75rem);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.download-modal.is-visible .download-modal-overlay,
.download-modal.is-visible .download-modal-panel {
  opacity: 1;
}

.download-modal.is-visible .download-modal-panel {
  transform: translateY(0);
}

.download-modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-page);
  color: var(--color-muted);
  font: inherit;
  font-size: 1.45rem;
  line-height: 1;
  cursor: pointer;
}

.download-modal-close:hover {
  border-color: var(--color-border-dark);
  color: var(--color-text);
}

.download-modal-close:focus-visible,
.download-modal-action:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.download-modal-brand {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 750;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.download-modal-panel h2 {
  margin: 0;
  padding-right: 2rem;
  font-family: var(--font-display);
  font-size: 1.85rem;
  color: var(--color-text);
}

.download-modal-panel > p:not(.download-modal-brand) {
  margin: 0.9rem 0 1.5rem;
  line-height: 1.75;
  color: var(--color-muted);
}

.download-modal-action {
  width: 100%;
}

.has-download-modal {
  overflow: hidden;
}

@media (max-width: 760px) {
  .blog-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

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

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

  .article-download-card,
  .end-download-card,
  .dl-card {
    align-items: stretch;
    flex-direction: column;
  }

  .article-download-actions,
  .end-download-actions {
    width: 100%;
  }

  .article-download-actions .button,
  .end-download-actions .button {
    flex: 1 1 auto;
  }

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

@media (max-width: 480px) {
  .blog-hero h1 {
    font-size: 2.7rem;
  }

  .article-hero {
    padding-top: 2.5rem;
    padding-bottom: 2rem;
  }

  .article-hero h1 {
    font-size: 2.25rem;
  }

  .article-download-actions,
  .end-download-actions {
    flex-direction: column;
  }

  .download-modal-panel {
    padding: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .post-card,
  .tag-filter,
  .download-modal-overlay,
  .download-modal-panel {
    transition: none;
  }
}