:root {
  --blog-size-breadcrumb: 0.8125rem;
  --blog-size-list-h1: clamp(1.875rem, 1.25rem + 2.6vw, 3rem);
  --blog-size-article-h1: clamp(1.5rem, 1.1rem + 1.4vw, 2rem);
  --blog-size-lead: clamp(0.9375rem, 0.85rem + 0.45vw, 1.125rem);
  --blog-size-h2: clamp(1.25rem, 1rem + 0.7vw, 1.5rem);
  --blog-size-h3: 1.25rem;
  --blog-line-title: 1.32;
  --blog-line-card: 1.55;
  --blog-line-lead: 1.7;
  --blog-line-body: 1.85;
  --blog-muted-opacity: 0.65;
  --blog-separator-opacity: 0.35;
  --blog-focus-width: 3px;
  --blog-focus-offset: 4px;
}

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

.blog-index {
  background: var(--bg);
}

.blog-index *,
.article-body * {
  box-sizing: border-box;
}

.blog-index h1,
.article-hero h1,
.article-header h1,
.article-body h1,
.article-body h2,
.article-body h3 {
  display: block;
}

.blog-index a:focus-visible,
.blog-index button:focus-visible,
.article-body a:focus-visible,
.blog-breadcrumb a:focus-visible,
nav.breadcrumb a:focus-visible,
nav.breadcrumbs a:focus-visible,
#related-posts a:focus-visible,
#post-nav a:focus-visible {
  outline: var(--blog-focus-width) solid var(--accent);
  outline-offset: var(--blog-focus-offset);
}

.blog-skip {
  position: absolute;
  top: 0.75rem;
  left: var(--gutter);
  z-index: 100;
  padding: 0.75rem 1rem;
  border-radius: var(--r-md);
  background: var(--accent);
  color: var(--white);
  font-weight: var(--weight-bold);
  text-decoration: none;
  transform: translateY(-180%);
}

.blog-skip:focus {
  transform: translateY(0);
}

.blog-hero {
  padding-block: 3rem 5rem;
  overflow-x: clip;
  background: linear-gradient(125deg, var(--hero-a), var(--hero-b) 56%, var(--hero-c));
  color: var(--text);
}

.blog-hero .eyebrow {
  margin: 0 0 1rem;
  color: var(--text);
  font-size: var(--size-small);
  font-weight: var(--weight-bold);
}

.blog-hero h1 {
  max-width: 100%;
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-list-h1);
  font-weight: var(--weight-display);
  line-height: var(--blog-line-title);
  letter-spacing: var(--tracking-heading);
  overflow-wrap: break-word;
}

.blog-hero .word {
  white-space: nowrap;
}

.blog-hero .kw {
  color: var(--accent);
}

.blog-hero-description {
  max-width: 48rem;
  margin: 1.25rem 0 0;
  color: var(--text);
  font-size: var(--blog-size-lead);
  line-height: var(--blog-line-lead);
}

.blog-index-content {
  position: relative;
  margin-top: -2rem;
  padding-block: 2.5rem 4rem;
  border-radius: var(--r-hero) var(--r-hero) 0 0;
  background: var(--bg);
  color: var(--text);
}

.blog-list-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  margin-bottom: 1.25rem;
}

.blog-list-heading h2 {
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-heavy);
}

.blog-result-count {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--size-small);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: 1.75rem;
}

.blog-filters button {
  min-height: 44px;
  padding: 0.625rem 1.125rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--size-small);
  font-weight: var(--weight-bold);
  line-height: var(--blog-line-card);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.blog-filters button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.blog-filters button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.blog-post-grid > *,
#related-posts > *,
#post-nav > * {
  min-width: 0;
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--bg);
  color: var(--text);
  box-shadow: var(--shadow-soft);
}

.post-card .post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.875rem;
  margin: 0;
  color: var(--text-muted);
  font-size: var(--blog-size-breadcrumb);
  line-height: var(--blog-line-lead);
}

.post-card .tag,
.article-meta .tag,
.post-meta .tag {
  display: inline-block;
  max-width: 100%;
  padding: 0.25rem 0.75rem;
  border-radius: var(--r-pill);
  background: var(--bg-panel-2);
  color: var(--accent-dark);
  font-family: var(--font-body);
  font-size: var(--blog-size-breadcrumb);
  font-weight: var(--weight-bold);
  white-space: normal;
  overflow-wrap: anywhere;
}

.post-card .post-card-title {
  display: block;
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-h3);
  font-weight: var(--weight-heavy);
  line-height: var(--blog-line-card);
  overflow-wrap: anywhere;
}

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

.post-card .post-card-title a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.post-card .post-summary {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--size-body);
  line-height: var(--blog-line-lead);
  overflow-wrap: anywhere;
}

.post-card .post-read {
  align-self: flex-start;
  margin-top: auto;
  padding-block: 0.25rem;
  color: var(--accent);
  font-size: var(--size-small);
  font-weight: var(--weight-bold);
  text-decoration: none;
}

.post-card .post-read:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 1.5rem;
  border-radius: var(--r-card);
  background: var(--bg-panel);
  color: var(--text-muted);
  line-height: var(--blog-line-lead);
}

.blog-empty a,
.blog-maintenance-note a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.blog-maintenance-note {
  margin-top: 2rem;
  padding: 1.5rem 1.75rem;
  border-radius: var(--r-section);
  background: var(--bg-panel-2);
  color: var(--text);
}

.blog-maintenance-note p {
  margin: 0 0 0.75rem;
  line-height: var(--blog-line-lead);
}

/* Compact article opening, including common article template aliases. */
body.has-dl-fab main > .section:first-child,
body.has-dl-fab main.section,
main.article-page.section,
.article-page > .section:first-child,
.breadcrumb-section.section {
  padding-top: 1.5rem;
  padding-bottom: 0;
}

.blog-breadcrumb,
nav.breadcrumb,
nav.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0.5rem;
  min-width: 0;
  max-width: 100%;
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
  padding: 0;
  overflow: hidden;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-size-breadcrumb);
  line-height: var(--blog-line-lead);
  white-space: nowrap;
}

.blog-breadcrumb a,
nav.breadcrumb a,
nav.breadcrumbs a {
  flex: 0 0 auto;
  color: var(--text-muted);
  text-decoration: none;
  opacity: var(--blog-muted-opacity);
}

.blog-breadcrumb a:hover,
nav.breadcrumb a:hover,
nav.breadcrumbs a:hover {
  color: var(--accent);
  opacity: 1;
}

.blog-breadcrumb [aria-hidden="true"],
nav.breadcrumb [aria-hidden="true"],
nav.breadcrumbs [aria-hidden="true"] {
  flex: 0 0 auto;
  opacity: var(--blog-separator-opacity);
}

.blog-breadcrumb [aria-current="page"],
nav.breadcrumb [aria-current="page"],
nav.breadcrumbs [aria-current="page"] {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 30ch;
  overflow: hidden;
  color: var(--text-muted);
  text-overflow: ellipsis;
}

.article-hero,
.article-header,
.article-hero.section,
.article-header.section {
  padding-top: 0.5rem;
  padding-bottom: 0.75rem;
  margin-bottom: 0;
  color: var(--text);
}

.article-hero .article-meta,
.article-header .article-meta,
.article-hero .post-meta,
.article-header .post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.875rem;
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--blog-size-breadcrumb);
  line-height: var(--blog-line-lead);
}

.article-hero h1,
.article-header h1,
.article-body h1 {
  max-width: 100%;
  margin: 1rem 0 0.75rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-article-h1);
  font-weight: var(--weight-display);
  line-height: var(--blog-line-title);
  letter-spacing: var(--tracking-heading);
  overflow-wrap: break-word;
}

.article-hero .article-lead,
.article-header .article-lead,
.article-hero .article-summary,
.article-header .article-summary,
.article-hero > p:last-child,
.article-header > p:last-child {
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: var(--blog-size-lead);
  line-height: var(--blog-line-lead);
}

.article-body,
.article-body.prose {
  padding-top: 0;
  color: var(--text);
  font-size: var(--size-body);
  line-height: var(--blog-line-body);
  overflow-wrap: anywhere;
}

.article-body :where(p, ul, ol, blockquote, pre, figure, .table-scroll) {
  margin-block: 0 1.25rem;
}

.article-body :where(ul, ol) {
  padding-left: 1.5rem;
}

.article-body li + li {
  margin-top: 0.5rem;
}

.article-body h2,
.article-body.prose h2 {
  display: block;
  margin: 2rem 0 1rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-heavy);
  line-height: var(--blog-line-title);
}

.article-body h3,
.article-body.prose h3 {
  display: block;
  margin: 1.5rem 0 0.75rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-h3);
  font-weight: var(--weight-heavy);
  line-height: var(--blog-line-card);
}

.article-header + .prose > section:first-child > h2:first-child,
.article-body > h2:first-of-type,
.article-body > section:first-of-type > h2:first-of-type,
.article-body.prose > h2:first-of-type,
.article-body.prose > section:first-of-type > h2:first-of-type {
  margin-top: 0;
}

.article-body section,
.article-body section.section,
.article-body.prose section.section {
  margin-block: 0 2rem;
  padding-block: 0;
  scroll-margin-top: calc(var(--head-h) + 1rem);
}

.article-body section > :last-child {
  margin-bottom: 0;
}

.prose a:not([class*="btn"]):not([class*="button"]),
.article-body a:not([class*="btn"]):not([class*="button"]):not(.post-nav-card) {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.article-body blockquote {
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
  background: var(--bg-panel-2);
  color: var(--text);
}

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

.article-body :not(pre) > code,
.prose :not(pre) > code {
  padding: 0.125rem 0.375rem;
  border-radius: var(--r-xs);
  background: var(--bg-panel);
  color: var(--accent-dark);
  font-family: var(--font-mono);
  font-size: var(--size-small);
  white-space: normal;
  overflow-wrap: anywhere;
}

.article-body pre,
.prose pre {
  max-width: 100%;
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-code);
  background: var(--bg-panel);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--size-small);
  line-height: var(--blog-line-lead);
  tab-size: 2;
}

.article-body pre code,
.prose pre code {
  padding: 0;
  background: var(--bg-panel);
  color: var(--text);
  font: inherit;
  white-space: pre;
  overflow-wrap: normal;
}

.article-body img,
.article-body svg {
  max-width: 100%;
}

.article-body img {
  height: auto;
}

.article-body .table-scroll,
.prose .table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.article-body table,
.prose table {
  display: block;
  width: 100%;
  max-width: 100%;
  margin-block: 1rem 1.25rem;
  overflow-x: auto;
  border-collapse: collapse;
  color: var(--text);
  font-size: var(--size-small);
}

.article-body :where(th, td),
.prose :where(th, td) {
  min-width: 7em;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.article-body th,
.prose th {
  background: var(--bg-panel-2);
  color: var(--text);
  font-weight: var(--weight-bold);
}

.article-download {
  margin-block: 2rem;
  padding: 1.75rem;
  border-radius: var(--r-card-lg);
  background: var(--bg-panel-2);
  color: var(--text);
}

.article-download h2,
.article-body .article-download h2 {
  margin: 0 0 0.875rem;
  color: var(--text);
  font-size: var(--blog-size-h2);
}

.article-download p {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  line-height: var(--blog-line-lead);
}

.article-download .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

#related-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 1.25rem;
  max-width: 100%;
  margin-block: 2rem;
}

#related-posts > h2,
#related-posts > .related-title {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: var(--blog-size-h2);
  font-weight: var(--weight-heavy);
  line-height: var(--blog-line-title);
}

#related-posts .post-card {
  padding: 1.5rem;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-block: 2rem;
}

#post-nav .post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
}

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

#post-nav .post-nav-previous {
  grid-column: 1;
}

#post-nav .post-nav-next {
  grid-column: 2;
}

.post-nav-label {
  color: var(--accent);
  font-size: var(--size-small);
  font-weight: var(--weight-bold);
}

.post-nav-title {
  color: var(--text);
  font-size: var(--size-body);
  font-weight: var(--weight-bold);
  line-height: var(--blog-line-card);
  overflow-wrap: anywhere;
}

.post-nav-date {
  margin-top: auto;
  color: var(--text-muted);
  font-size: var(--blog-size-breadcrumb);
}

#related-posts:empty,
#post-nav:empty {
  display: none;
  margin: 0;
}

@media (min-width: 821px) {
  #related-posts {
    grid-template-columns: repeat(2, minmax(300px, 1fr));
  }
}

@media (max-width: 680px) {
  .blog-post-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-hero {
    padding-block: 2rem 4rem;
  }

  .blog-hero h1 {
    font-size: 1.875rem;
  }

  .blog-index-content {
    padding-block: 2rem 3rem;
  }

  .post-card {
    padding: 1.25rem;
  }

  .blog-maintenance-note,
  .article-download {
    padding: 1.25rem;
  }

  .article-hero h1,
  .article-header h1,
  .article-body h1 {
    font-size: 1.5rem;
  }

  #related-posts,
  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .blog-filters button {
    transition: none;
  }
}