/* Crossdeck blog */
:root {
  --ds-bg: #f7f3ec;
  --ds-bg-soft: #faf7f0;
  --ds-canvas: #fbfaf6;
  --ds-surface: #ffffff;
  --ds-surface-soft: #f8f5ef;
  --ds-border: rgba(23, 19, 17, 0.09);
  --ds-border-strong: rgba(23, 19, 17, 0.16);
  --ds-divider: rgba(23, 19, 17, 0.06);
  --ds-text: #14110f;
  --ds-text-soft: #2a2421;
  --ds-muted: #6b6259;
  --ds-muted-soft: #948a7e;
  --ds-accent-red: #ff3431;
  --ds-accent: #ff6e45;
  --ds-accent-strong: #ee4f25;
  --ds-accent-warm: #ff8d4b;
  --ds-accent-soft: rgba(255, 110, 69, 0.1);
  --ds-shadow-sm: 0 1px 2px rgba(20, 17, 15, 0.04);
  --ds-shadow-md: 0 10px 30px rgba(20, 17, 15, 0.06);
  --ds-shadow-lg: 0 24px 64px rgba(20, 17, 15, 0.08);
  --ds-radius: 10px;
  --ds-radius-sm: 6px;
  --ds-radius-lg: 14px;
  --ds-radius-xl: 22px;
  --ds-radius-pill: 999px;
  --ds-mono: "SF Mono", "JetBrains Mono", "Menlo", ui-monospace, monospace;
  --ds-sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --ds-display: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(255, 110, 69, 0.12), transparent 30%),
    var(--ds-bg);
  color: var(--ds-text);
  font-family: var(--ds-sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11", "tnum";
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
::selection { background: rgba(255, 110, 69, 0.22); color: var(--ds-text); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: rgba(247, 243, 236, 0.78);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--ds-border);
}

.site-header-inner {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: inline-flex; align-items: center; }
.brand img { height: 22px; width: auto; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13.5px;
  color: var(--ds-text-soft);
}

.site-nav a {
  padding: 6px 12px;
  border-radius: var(--ds-radius-sm);
  font-weight: 500;
  color: var(--ds-text-soft);
  transition: color 120ms, background 120ms;
}

.site-nav a:hover {
  color: var(--ds-text);
  background: rgba(23, 19, 17, 0.04);
}

.site-nav .nav-signin { color: var(--ds-text); }
.nav-cta { margin-left: 6px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--ds-radius-sm);
  border: 1px solid var(--ds-border);
  background: var(--ds-surface);
  color: var(--ds-text);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 140ms, background 140ms, transform 140ms, box-shadow 140ms;
}

.btn:hover,
.topic-links a:hover,
.text-link:hover,
.sidebar-doc-link:hover {
  border-color: var(--ds-border-strong);
  color: var(--ds-text);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--ds-shadow-sm);
}

.btn-accent {
  background: linear-gradient(180deg, var(--ds-accent) 0%, var(--ds-accent-strong) 100%);
  color: #fff;
  border-color: var(--ds-accent-strong);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset, 0 4px 12px rgba(238, 79, 37, 0.2);
}

.btn svg,
.sidebar-doc-link svg {
  width: 13px;
  height: 13px;
}

.blog-page {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.article-page {
  width: min(calc(100% - 40px), 1100px);
  margin: 0 auto;
}

.hero-copy,
.feature-lead,
.feature-list-item,
.topic-column,
.post-card,
.sidebar-card,
.article-main,
.related-card {
  border: 0;
  background: transparent;
  box-shadow: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--ds-radius-pill);
  border: 1px solid var(--ds-border);
  background: rgba(255, 255, 255, 0.92);
  color: var(--ds-muted);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-badge svg {
  width: 12px;
  height: 12px;
  color: var(--ds-accent-strong);
}

.section-tag,
.featured-cluster,
.related-cluster,
.post-row-cluster {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ds-muted);
}

.blog-hero {
  padding: 82px 0 58px;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
  gap: 56px;
  align-items: end;
  border-bottom: 1px solid var(--ds-divider);
}

.hero-copy {
  max-width: 780px;
  padding: 0;
  border-radius: 0;
}

.hero-directory {
  padding-left: 32px;
  border-left: 1px solid var(--ds-divider);
}

.hero-topic-nav {
  display: grid;
  gap: 0;
  margin-top: 18px;
}

.hero-topic-link {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--ds-divider);
}

.hero-topic-link:first-child {
  padding-top: 0;
  border-top: 0;
}

.hero-topic-link span {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ds-muted);
}

.hero-topic-link strong {
  font-size: 16px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-weight: 500;
}
.feature-lead p,
.topic-column p,
.post-card p,
.article-section p,
.glossary-card p,
.cta-card p,
.related-card p,
.sidebar-card p {
  color: var(--ds-text-soft);
}

.blog-hero h1 {
  margin: 18px 0 0;
  font-family: var(--ds-display);
  font-size: clamp(44px, 5vw, 72px);
  line-height: 1.01;
  letter-spacing: -0.04em;
  font-weight: 600;
}

.article-hero h1 {
  margin: 14px 0 0;
  font-family: var(--ds-display);
  font-size: clamp(42px, 4.8vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 600;
  text-wrap: balance;
}

.accent {
  background: linear-gradient(96deg, var(--ds-accent-red), var(--ds-accent), var(--ds-accent-warm));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subhead {
  margin: 20px 0 0;
  max-width: 44em;
  font-size: 18px;
  color: var(--ds-text-soft);
}

.article-lead {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 17px;
  color: var(--ds-text-soft);
}

.hero-trust,
.article-meta,
.post-row-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
  color: var(--ds-muted);
  font-size: 13px;
}

.hero-trust .sep,
.article-meta .sep { color: var(--ds-muted-soft); }

.hero-trust-plain {
  margin-top: 18px;
}

.blog-section { padding: 52px 0 0; }

.section-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-title-row-stack {
  align-items: stretch;
  flex-direction: column;
}

.section-title-row h2,
.glossary-card h2,
.article-section h2,
.cta-card h2,
.related-section h2 {
  margin: 10px 0 0;
  font-family: var(--ds-display);
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.section-title-row h2 {
  font-size: clamp(28px, 3.2vw, 40px);
}

.section-copy { margin: 12px 0 0; color: var(--ds-muted); max-width: 70ch; }

.cta-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.featured-layout,
.topic-grid,
.glossary-list,
.related-list {
  display: grid;
  gap: 16px;
}

.featured-layout { grid-template-columns: minmax(0, 1.06fr) minmax(340px, 0.94fr); gap: 56px; align-items: start; }
.topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 44px 56px; }
.glossary-list { gap: 0; }
.feature-lead {
  padding: 0 56px 0 0;
  border-right: 1px solid var(--ds-divider);
}

.feature-lead h3 {
  display: block;
  margin: 12px 0 0;
  font-size: clamp(34px, 3.2vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.topic-column h3 {
  display: block;
  margin: 12px 0 0;
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.related-card strong {
  display: block;
  margin: 10px 0 0;
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.feature-lead p,
.topic-column p,
.related-card p { margin: 14px 0 0; }

.feature-lead-meta {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.lead-story-points {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--ds-divider);
}

.lead-story-points ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.lead-story-points li {
  position: relative;
  padding-left: 16px;
  color: var(--ds-text-soft);
}

.lead-story-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ds-accent-strong);
}

.feature-list {
  display: grid;
}

.feature-list-item {
  display: block;
  padding: 20px 0;
  border-bottom: 1px solid var(--ds-divider);
}

.feature-list-item:first-child {
  padding-top: 0;
}

.feature-list-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.feature-list-item strong {
  display: block;
  margin-top: 12px;
  font-size: 26px;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.feature-list-item p {
  margin: 10px 0 0;
}

.featured-meta {
  display: block;
  color: var(--ds-muted);
  font-size: 13px;
}

.featured-date {
  color: var(--ds-muted);
  font-size: 13px;
}

.topic-links {
  display: grid;
  gap: 0;
  margin-top: 20px;
  border-top: 0;
}

.topic-links a {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ds-divider);
  color: var(--ds-text);
  font-weight: 500;
}

.link-mark {
  flex: none;
  color: var(--ds-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.topic-column {
  padding-top: 20px;
  border-top: 1px solid var(--ds-divider);
}

.library-tools {
  display: grid;
  gap: 12px;
}

.search-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: min(100%, 360px);
  padding: 0 12px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--ds-border);
  background: rgba(255, 255, 255, 0.88);
}

.search-field svg {
  width: 14px;
  height: 14px;
  color: var(--ds-muted);
}

.search-field input {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--ds-text);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  border: 1px solid var(--ds-border);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ds-text-soft);
  padding: 9px 12px;
  border-radius: var(--ds-radius-pill);
  cursor: pointer;
  transition: border-color 120ms, color 120ms, background 120ms;
}

.filter-chip.is-active {
  background: var(--ds-accent-soft);
  color: var(--ds-accent-strong);
  border-color: rgba(238, 79, 37, 0.18);
}

.post-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ds-divider);
}

.post-card {
  padding: 22px 0;
  border-radius: 0;
  border-bottom: 1px solid var(--ds-divider);
}

.post-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
}

.post-card h3 {
  margin: 10px 0 0;
  font-size: 26px;
  line-height: 1.14;
  letter-spacing: -0.025em;
}

.post-card p {
  margin: 10px 0 0;
  max-width: 70ch;
}

.post-row-tail {
  display: grid;
  gap: 10px;
  justify-items: end;
  color: var(--ds-muted);
  font-size: 13px;
}

.text-link,
.sidebar-doc-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ds-text);
  font-weight: 600;
}

.article-page {
  padding: 56px 0 72px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 740px) 220px;
  justify-content: center;
  column-gap: 64px;
  row-gap: 28px;
  align-items: start;
}

.article-hero {
  grid-column: 1;
  margin: 0;
}

.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ds-muted);
}

.article-kicker a,
.article-kicker .sep {
  color: var(--ds-muted);
}

.article-kicker span:last-child {
  color: var(--ds-text);
  font-weight: 500;
}

.article-sidebar {
  grid-column: 2;
  grid-row: 1 / span 2;
  position: sticky;
  top: 92px;
  display: grid;
  gap: 24px;
}

.sidebar-card {
  padding: 0 0 18px;
  border-radius: 0;
  border-bottom: 1px solid var(--ds-divider);
}

.toc-links {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.toc-links a {
  color: var(--ds-text-soft);
  font-size: 14px;
}

.sidebar-doc-link { margin-top: 14px; }

.article-main {
  grid-column: 1;
  min-width: 0;
  border-radius: 0;
  padding: 0 0 18px;
}

.article-main > * {
  padding: 38px 0;
  border-top: 1px solid var(--ds-divider);
}

.article-main > :first-child { border-top: 0; }

.article-section p,
.glossary-card p,
.cta-card p,
.related-card p,
.faq-item p { margin: 12px 0 0; }

.answer-points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.answer-points li {
  position: relative;
  padding-left: 18px;
  color: var(--ds-text-soft);
}

.answer-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ds-accent-strong);
}

.glossary-list { margin-top: 18px; }

.glossary-list article {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-top: 1px solid var(--ds-divider);
  border-radius: 0;
  background: transparent;
}

.glossary-list strong {
  display: block;
  font-size: 15px;
}

.article-section ul,
.cta-card ul {
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--ds-text-soft);
}

.article-section li,
.cta-card li { margin: 8px 0; }

.blog-table-wrap {
  margin-top: 20px;
  border-radius: 18px;
  border: 1px solid var(--ds-border);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.84);
}

.blog-table-head {
  padding: 12px 16px;
  border-bottom: 1px solid var(--ds-divider);
  background: var(--ds-surface-soft);
}

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

.blog-table th,
.blog-table td {
  padding: 12px 16px;
  vertical-align: top;
  border-bottom: 1px solid var(--ds-divider);
  text-align: left;
}

.blog-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ds-muted);
}

.doc-codeblock {
  background: #14110f;
  color: rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 20px;
  overflow: hidden;
}

.doc-codeblock-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.6);
}

.doc-codeblock-head .lang {
  margin-left: auto;
  font-family: var(--ds-mono);
}

.doc-codeblock pre {
  margin: 0;
  padding: 16px;
  overflow: auto;
}

.doc-codeblock code {
  font-family: var(--ds-mono);
  font-size: 13px;
  line-height: 1.7;
}

.faq-list {
  display: grid;
  gap: 0;
  margin-top: 18px;
}

.faq-item {
  border: 0;
  border-top: 1px solid var(--ds-divider);
  border-radius: 0;
  padding: 0;
  background: transparent;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 600;
}

.faq-item p { margin: 0 0 16px; }

.cta-card {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  background: transparent;
}

.related-card {
  display: block;
  padding: 18px 0;
  border-bottom: 1px solid var(--ds-divider);
}

.related-list {
  gap: 0;
}

.site-footer {
  margin-top: 56px;
  border-top: 1px solid var(--ds-border);
  background: var(--ds-bg-soft);
}

.footer-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand {
  font-family: var(--ds-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ds-text);
}

.footer-tagline {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--ds-muted);
  max-width: 30ch;
  line-height: 1.55;
}

.footer-column .footer-heading {
  margin: 0 0 12px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ds-text);
}

.footer-column a {
  display: block;
  font-size: 13px;
  color: var(--ds-muted);
  padding: 4px 0;
  transition: color 120ms;
}

.footer-column a:hover {
  color: var(--ds-text);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--ds-border);
  font-size: 12px;
  color: var(--ds-muted);
}

.footer-meta {
  display: inline-flex;
  gap: 14px;
}

code:not(pre code) {
  font-family: var(--ds-mono);
  font-size: 0.86em;
  padding: 1px 6px;
  background: var(--ds-canvas);
  border: 1px solid var(--ds-border);
  border-radius: 4px;
}

@media (max-width: 1080px) {
  .blog-hero,
  .topic-grid,
  .featured-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-directory {
    padding-left: 0;
    padding-top: 18px;
    border-left: 0;
    border-top: 1px solid var(--ds-divider);
  }

  .article-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .article-sidebar {
    position: static;
    grid-column: 1;
    grid-row: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 840px) {
  .site-header-inner,
  .footer-shell {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .site-nav {
    display: none;
  }

  .blog-page,
  .article-page {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .blog-hero,
  .featured-layout,
  .topic-grid,
  .glossary-list,
  .related-list,
  .article-sidebar {
    grid-template-columns: minmax(0, 1fr);
  }

  .article-main {
    padding: 0 0 10px;
  }

  .post-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-row-tail {
    justify-items: start;
  }

  .hero-copy {
    padding: 0;
  }

  .feature-lead {
    padding: 0 0 28px;
    border-right: 0;
    border-bottom: 1px solid var(--ds-divider);
  }

  .blog-hero h1,
  .article-hero h1 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .glossary-list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand-block {
    grid-column: 1 / -1;
  }
}