:root {
  color-scheme: light dark;
  --bg: #f8f6ef;
  --bg-soft: #efece1;
  --panel: rgba(255, 253, 246, 0.82);
  --panel-strong: #fffdf6;
  --border: rgba(38, 35, 28, 0.12);
  --text: #24211b;
  --muted: #746f63;
  --faint: #9f9889;
  --accent: #416f68;
  --accent-strong: #254f49;
  --success: #517c4d;
  --warn: #9a6a20;
  --danger: #a04c43;
  --code-bg: #eee9dc;
  --shadow: 0 18px 50px rgba(64, 57, 42, 0.12);
  --sidebar: rgba(248, 246, 239, 0.78);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11100d;
    --bg-soft: #1a1813;
    --panel: rgba(29, 27, 22, 0.82);
    --panel-strong: #242119;
    --border: rgba(235, 226, 205, 0.13);
    --text: #ece5d6;
    --muted: #aca38f;
    --faint: #756d5f;
    --accent: #8fbdb5;
    --accent-strong: #b7d8d2;
    --success: #9fca92;
    --warn: #d7ac62;
    --danger: #d4867b;
    --code-bg: #1d1a15;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
    --sidebar: rgba(17, 16, 13, 0.8);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f8f6ef;
  --bg-soft: #efece1;
  --panel: rgba(255, 253, 246, 0.82);
  --panel-strong: #fffdf6;
  --border: rgba(38, 35, 28, 0.12);
  --text: #24211b;
  --muted: #746f63;
  --faint: #9f9889;
  --accent: #416f68;
  --accent-strong: #254f49;
  --success: #517c4d;
  --warn: #9a6a20;
  --danger: #a04c43;
  --code-bg: #eee9dc;
  --shadow: 0 18px 50px rgba(64, 57, 42, 0.12);
  --sidebar: rgba(248, 246, 239, 0.78);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #11100d;
  --bg-soft: #1a1813;
  --panel: rgba(29, 27, 22, 0.82);
  --panel-strong: #242119;
  --border: rgba(235, 226, 205, 0.13);
  --text: #ece5d6;
  --muted: #aca38f;
  --faint: #756d5f;
  --accent: #8fbdb5;
  --accent-strong: #b7d8d2;
  --success: #9fca92;
  --warn: #d7ac62;
  --danger: #d4867b;
  --code-bg: #1d1a15;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
  --sidebar: rgba(17, 16, 13, 0.8);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 16% 8%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 28rem),
    linear-gradient(180deg, var(--bg), var(--bg-soft));
  color: var(--text);
  font-family: ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 17px;
}
a { color: var(--accent); text-decoration: none; text-underline-offset: 0.22em; }
a:hover { color: var(--accent-strong); text-decoration: underline; }
p, li { line-height: 1.68; margin: 0 0 0.75rem; }
p:last-child { margin-bottom: 0; }
pre, code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
pre {
  position: relative;
  overflow-x: auto;
  max-width: 100%;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--code-bg);
  margin: 1rem 0;
}
code { font-size: 0.84rem; }
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.65rem;
  font-family: ui-serif, "Iowan Old Style", Georgia, serif;
  letter-spacing: -0.035em;
  line-height: 1.08;
}
h2 { margin-top: 2rem; }
h3 { margin-top: 1.4rem; }
blockquote { margin: 0; }

.site-shell { display: grid; grid-template-columns: 18rem minmax(0, 1fr); min-height: 100vh; }
.site-sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 1.4rem;
  border-right: 1px solid var(--border);
  background: var(--sidebar);
  backdrop-filter: blur(20px);
}
.site-brand { display: grid; gap: 0.25rem; margin-bottom: 1.6rem; color: var(--text); }
.site-brand strong { font-size: 1rem; font-weight: 500; line-height: 1.3; }
.site-brand-kicker, .page-eyebrow, .site-nav-label, .card-meta {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.66rem;
  color: var(--faint);
}
.site-nav { display: grid; gap: 0.35rem; }
.site-nav-label { margin-top: 0.8rem; }
.sidebar-link {
  display: block;
  padding: 0.42rem 0;
  border-radius: 0;
  color: var(--muted);
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.9rem;
}
.sidebar-link:hover, .sidebar-link.active { color: var(--text); text-decoration: none; }
.sidebar-link.active { font-weight: 700; }
.volume-link { color: var(--text); }

.site-main, .home-shell { width: min(100%, 76rem); padding: 2.5rem clamp(1.25rem, 4vw, 4.5rem); }
.home-shell { margin: 0 auto; }
.page-header, .home-hero { display: grid; gap: 0.8rem; margin-bottom: 1.5rem; }
.page-header h1, .home-hero h1, .hero h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(1.9rem, 4.5vw, 3.4rem);
  font-weight: 520;
}
.home-hero h1 { max-width: 11ch; font-size: clamp(2.2rem, 5.5vw, 4.2rem); }
.hero h1 { max-width: none; font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
.page-subtitle, .hero-subtitle {
  max-width: 42rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
}
.page-meta, .hero-badges, .entry-badges, .volume-nav { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.meta-chip, .badge, .entry-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-strong) 70%, transparent);
  color: var(--muted);
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.72rem;
}
.meta-chip-link { color: var(--accent); }
.badge-success, .entry-badge-version { color: var(--success); }
.badge-warning { color: var(--warn); }
.badge-danger, .entry-badge-deprecated { color: var(--danger); }
.entry-badge-experimental { color: var(--accent); }

.article-layout, .home-grid {
  display: grid;
  grid-template-columns: minmax(0, 42rem) 17rem;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}
.article-body, .home-content { min-width: 0; }
.home-links, .outline-panel { border-left: 1px solid var(--border); padding-left: 1rem; }
.outline-panel { position: sticky; top: 1.4rem; font-size: 0.92rem; color: var(--muted); }
.outline-panel h3, .home-links h2 {
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}
.outline-panel ul, .toc ul { list-style: none; padding-left: 0; margin: 0; }
.outline-panel li + li { margin-top: 0.35rem; }

.hero, .callout, .card, .demo-block, .entry, .api, .page > div, .figure {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.hero, .callout, .card, .demo-block, .entry, .api { padding: 1rem; }
.hero { display: grid; gap: 0.75rem; background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 14%, transparent), var(--panel)); }
.hero-copy, .hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.hero-copy { display: grid; }
.hero-lead, .card-text, .demo-copy, .entry-description p { color: var(--muted); }
.hero-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--panel-strong);
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.9rem;
}
.hero-action-primary { border-color: color-mix(in srgb, var(--accent) 42%, var(--border)); }

.callout { margin: 1.25rem 0; }
.card-grid-shell { display: grid; gap: 0.75rem; margin: 1.25rem 0; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 0.8rem; }
.card h4 { margin-top: 0.35rem; font-size: 1.05rem; }
.doc-quote {
  padding: 1rem;
  border-left: 2px solid var(--accent);
  background: color-mix(in srgb, var(--panel-strong) 56%, transparent);
  border-radius: 12px;
  margin: 1.25rem 0;
}
.doc-quote footer { color: var(--muted); font-size: 0.9rem; }
.demo-block { margin: 1.25rem 0; display: grid; gap: 0.75rem; }
.copy-button, .theme-toggle {
  border: 1px solid var(--border);
  background: var(--panel-strong);
  color: var(--text);
  border-radius: 999px;
  cursor: pointer;
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.75rem;
}
.copy-button { position: absolute; top: 0.65rem; right: 0.65rem; padding: 0.25rem 0.55rem; }
.theme-toggle { position: fixed; right: 1rem; bottom: 1rem; z-index: 10; padding: 0.55rem 0.8rem; box-shadow: var(--shadow); }
.site-link-grid { display: grid; gap: 0.2rem; }
.site-link-card { display: grid; gap: 0.2rem; padding: 0.55rem 0; border-bottom: 1px solid var(--border); }
.site-link-title { color: var(--text); font-weight: 600; font-size: 0.96rem; }
.site-link-subtitle { color: var(--muted); font-size: 0.88rem; line-height: 1.4; }
.entry { margin-bottom: 0.9rem; }
.entry h4 { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem; font-size: 1.05rem; }
.entry-arglists, .entry-option { margin: 0.7rem 0; }
.figure img { max-width: 100%; border-radius: 18px; }
.volume-nav { margin-bottom: 2rem; }
.volume-nav .sidebar-link {
  padding: 0.42rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-strong) 62%, transparent);
}

.related-shell { display: grid; gap: 0.6rem; margin: 1.25rem 0; }
.related-heading h3 { margin: 0; }
.related-shell .related-table { margin: 0; }
.related-table {
  display: grid;
  margin: 1.25rem 0;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.related-row {
  display: grid;
  grid-template-columns: minmax(9rem, 12rem) minmax(0, 1fr);
  gap: 0.35rem 1.1rem;
  padding: 0.85rem 1rem;
}
.related-row + .related-row { border-top: 1px solid var(--border); }
.related-name { font-weight: 600; }
.related-name a { color: var(--text); }
.related-family {
  display: block;
  margin-top: 0.2rem;
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--faint);
}
.related-description { color: var(--muted); }
.related-comparison { grid-column: 2; color: var(--faint); font-size: 0.88rem; }
.links-list { display: flex; flex-wrap: wrap; gap: 0.55rem; margin: 1.25rem 0; }
.links-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-strong) 70%, transparent);
  color: var(--text);
  font-family: ui-sans-serif, "Gill Sans", "Avenir Next", sans-serif;
  font-size: 0.85rem;
}
.links-list a:hover { color: var(--accent-strong); }

@media (max-width: 1100px) {
  .site-shell, .article-layout, .home-grid { grid-template-columns: 1fr; }
  .site-sidebar { position: relative; height: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .site-main, .home-shell { padding-top: 2rem; }
  .article-outline { order: -1; }
  .outline-panel, .home-links { position: relative; top: 0; border-left: 0; padding-left: 0; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .site-main, .home-shell { padding: 1.2rem; }
  .page-header h1, .home-hero h1 { max-width: none; font-size: 1.9rem; }
  .hero h1 { font-size: 1.55rem; }
  .site-sidebar { padding: 1rem 1.2rem; }
  .article-outline { display: none; }
  .hero-actions { display: grid; }
  .hero-action { justify-content: center; }
  .card-grid { grid-template-columns: 1fr; }
  .related-row { grid-template-columns: 1fr; }
  .related-comparison { grid-column: auto; }
  pre { padding: 0.75rem 0.85rem; }
  h2 { font-size: 1.35rem; }
  h3 { font-size: 1.15rem; }
}