:root {
  --blog-modal-backdrop: var(--color-shadow-deep);
  --blog-transition-fast: 160ms;
  --blog-transition-step: steps(4, end);
  --blog-rule-width: 2px;
  --blog-reading-leading: 1.85;
  --blog-code-leading: 1.7;
  --blog-title-tracking: 0.02em;
  --blog-radius: 0;
}

.blog-hero {
  padding: clamp(2.5rem, 7vw, 5.5rem) 0 2.5rem;
}

.blog-hero__window,
.blog-filter-panel {
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  background: var(--color-panel);
  box-shadow: var(--hard-shadow-large);
  border-radius: var(--blog-radius);
}

.blog-hero__window {
  max-width: 56rem;
}

.blog-hero__titlebar,
.blog-filter-panel__titlebar,
.download-modal__titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 2rem;
  padding: 0.3rem 0.55rem;
  background: var(--color-accent-dark);
  color: var(--color-selection-text);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--blog-title-tracking);
}

.blog-hero__body {
  padding: clamp(1.5rem, 5vw, 3.75rem);
}

.blog-hero__body h1 {
  max-width: 14ch;
  margin: 0.45rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.blog-hero__status {
  display: inline-block;
  margin: 0;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--color-border);
  background: var(--color-panel-soft);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

.blog-catalog {
  padding-top: 1rem;
}

.blog-filter-panel {
  margin-bottom: 2.5rem;
  box-shadow: var(--hard-shadow-medium);
}

.blog-filter-panel__body {
  padding: 1rem;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.blog-filter {
  min-height: 2.3rem;
  padding: 0.35rem 0.8rem;
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  border-radius: var(--blog-radius);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--hard-shadow-small);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.blog-filter:active,
.blog-filter.is-active {
  border-top-color: var(--color-border);
  border-left-color: var(--color-border);
  background: var(--color-accent);
  color: var(--color-selection-text);
  box-shadow: none;
}

.blog-filter:focus-visible,
.blog-post-card a:focus-visible,
.related-card a:focus-visible,
.post-nav__link:focus-visible,
.download-modal a:focus-visible,
.download-modal button:focus-visible {
  outline: 1px dashed var(--color-text);
  outline-offset: 3px;
}

.blog-results-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: var(--blog-rule-width) solid var(--color-border);
}

.blog-results-head h2 {
  margin-bottom: 0.55rem;
}

.blog-results-head__status {
  margin: 0 0 0.55rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.86rem;
}

.blog-post-list {
  display: grid;
  gap: 1rem;
}

.blog-post-card {
  display: grid;
  gap: 0.85rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  border-radius: var(--blog-radius);
  background: var(--color-panel-soft);
  box-shadow: var(--hard-shadow-medium);
}

.blog-post-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  line-height: 1.35;
}

.blog-post-card h3 a {
  color: var(--color-text);
}

.blog-post-card p {
  max-width: 56rem;
  margin: 0;
  color: var(--color-text-muted);
}

.post-card__meta,
.related-card__meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.post-card__link {
  justify-self: start;
  font-weight: 700;
}

.breadcrumbs {
  margin-top: 1.5rem;
  padding-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

.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;
  content: ">";
  color: var(--color-text-muted);
}

.article-hero {
  padding: 2rem 0 2.5rem;
}

.article-hero h1 {
  max-width: 21ch;
  margin: 0.8rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.article-hero .lead {
  max-width: 48rem;
}

.article-body {
  padding-bottom: 3rem;
}

.article-content {
  font-size: 1.04rem;
  line-height: var(--blog-reading-leading);
}

.article-content h2 {
  margin: 3.2rem 0 1rem;
  padding: 0.35rem 0.55rem;
  border-left: 0.55rem solid var(--color-accent);
  border-bottom: var(--blog-rule-width) solid var(--color-border);
  background: var(--color-panel);
  font-family: var(--font-display);
  line-height: 1.35;
}

.article-content h3 {
  margin: 2rem 0 0.7rem;
  font-family: var(--font-display);
}

.article-content p,
.article-content ul,
.article-content ol,
.article-content blockquote,
.article-content pre {
  margin-top: 0;
  margin-bottom: 1.25rem;
}

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

.article-content blockquote {
  margin-left: 0;
  padding: 0.85rem 1rem;
  border: var(--blog-rule-width) solid var(--color-border);
  border-left: 0.55rem solid var(--color-accent-dark);
  background: var(--color-panel-soft);
  color: var(--color-text-muted);
}

.article-content pre {
  overflow-x: auto;
  padding: 1rem;
  border: var(--blog-rule-width) solid var(--color-border);
  background: var(--color-paper);
  box-shadow: var(--hard-shadow-small);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: var(--blog-code-leading);
}

.article-content code {
  font-family: var(--font-mono);
}

.download-cta,
.dl-card {
  margin-top: 3rem;
  padding: clamp(1.2rem, 4vw, 2rem);
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  border-radius: var(--blog-radius);
  background: var(--color-panel);
  box-shadow: var(--hard-shadow-large);
}

.download-cta h2,
.dl-card h2 {
  margin-top: 0;
  font-family: var(--font-display);
}

.download-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

#related-posts {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: var(--blog-rule-width) solid var(--color-border);
}

#related-posts > h2 {
  font-family: var(--font-display);
}

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

.related-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1rem;
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  background: var(--color-panel-soft);
  box-shadow: var(--hard-shadow-small);
}

.related-card h3 {
  margin: 0.85rem 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1.4;
}

.related-card h3 a {
  color: var(--color-text);
}

.related-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

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

.post-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-height: 6rem;
  padding: 1rem;
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  background: var(--color-panel);
  color: var(--color-text);
  box-shadow: var(--hard-shadow-small);
  text-decoration: none;
}

.post-nav__label {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.download-modal {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--gutter);
  background: var(--blog-modal-backdrop);
  opacity: 0;
  transition: opacity var(--blog-transition-fast) var(--blog-transition-step);
}

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

.download-modal.is-open {
  opacity: 1;
}

.download-modal__panel {
  width: min(100%, 31rem);
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  border-radius: var(--blog-radius);
  background: var(--color-panel);
  box-shadow: var(--hard-shadow-large);
  transform: translate(0.45rem, 0.45rem);
  transition: transform var(--blog-transition-fast) var(--blog-transition-step);
}

.download-modal.is-open .download-modal__panel {
  transform: translate(0, 0);
}

.download-modal__close {
  display: grid;
  width: 1.5rem;
  height: 1.5rem;
  place-items: center;
  padding: 0;
  border: var(--blog-rule-width) solid var(--color-border);
  border-top-color: var(--color-panel-bright);
  border-left-color: var(--color-panel-bright);
  border-radius: var(--blog-radius);
  background: var(--color-panel);
  color: var(--color-text);
  font: 700 1rem/1 var(--font-mono);
  cursor: pointer;
}

.download-modal__body {
  padding: 1.4rem;
}

.download-modal__body h2 {
  margin-top: 0;
  font-family: var(--font-display);
}

.download-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.3rem;
}

@media (max-width: 760px) {
  .blog-results-head {
    align-items: start;
    flex-direction: column;
    gap: 0;
  }

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

  .blog-filter {
    flex: 1 1 calc(50% - 0.65rem);
  }

  .article-content {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .download-modal,
  .download-modal__panel {
    transition: none;
  }
}