:root {
  color-scheme: light;
  --bg: #f5f7f8;
  --surface: #ffffff;
  --surface-muted: #edf2f3;
  --surface-strong: #dfe8ea;
  --text: #1d2a2e;
  --text-muted: #58676d;
  --heading: #102b31;
  --border: #d5dfe1;
  --border-strong: #b6c6c9;
  --accent: #087c83;
  --accent-hover: #05656b;
  --accent-soft: #d8eff0;
  --header: #11373b;
  --header-text: #f5fbfb;
  --code-bg: #14272b;
  --code-text: #edf7f7;
  --code-output: #eef4f4;
  --focus: #0c9ca5;
  --warning: #b76a16;
  --important: #8d3d65;
  --shadow: 0 0.75rem 2rem rgb(21 47 51 / 8%);
  --radius: 0.5rem;
  --header-height: 4rem;
  --site-width: 100rem;
  --reading-width: 76ch;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0c1517;
  --surface: #111d20;
  --surface-muted: #19292d;
  --surface-strong: #24383d;
  --text: #dce8e9;
  --text-muted: #9cb1b4;
  --heading: #f0f8f8;
  --border: #2c4145;
  --border-strong: #476066;
  --accent: #65cbd0;
  --accent-hover: #9be4e6;
  --accent-soft: #173b3f;
  --header: #0b282c;
  --header-text: #f4fbfb;
  --code-bg: #091316;
  --code-text: #e5f2f2;
  --code-output: #162529;
  --focus: #7de0e4;
  --warning: #e9a84a;
  --important: #e794bd;
  --shadow: 0 0.75rem 2rem rgb(0 0 0 / 24%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0c1517;
    --surface: #111d20;
    --surface-muted: #19292d;
    --surface-strong: #24383d;
    --text: #dce8e9;
    --text-muted: #9cb1b4;
    --heading: #f0f8f8;
    --border: #2c4145;
    --border-strong: #476066;
    --accent: #65cbd0;
    --accent-hover: #9be4e6;
    --accent-soft: #173b3f;
    --header: #0b282c;
    --header-text: #f4fbfb;
    --code-bg: #091316;
    --code-text: #e5f2f2;
    --code-output: #162529;
    --focus: #7de0e4;
    --warning: #e9a84a;
    --important: #e794bd;
    --shadow: 0 0.75rem 2rem rgb(0 0 0 / 24%);
  }
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration-thickness: 0.08em; text-underline-offset: 0.15em; }
a:hover { color: var(--accent-hover); }

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible, .table-wrap:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.55rem 0.8rem;
  transform: translateY(-160%);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgb(255 255 255 / 16%);
  background: var(--header);
  color: var(--header-text);
}

.topbar {
  display: flex;
  min-height: var(--header-height);
  max-width: var(--site-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.55rem;
  color: var(--header-text);
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: -0.025em;
  text-decoration: none;
}
.brand:hover { color: #fff; }
.brand-mark {
  display: grid;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  border: 1px solid rgb(155 224 225 / 62%);
  border-radius: 0.375rem;
  background: rgb(255 255 255 / 10%);
  color: #b8eff0;
  font: 750 0.85rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.top-links { display: flex; gap: 0.75rem; font-size: 0.86rem; }
.top-links a { color: #d7eeee; text-decoration: none; }
.top-links a:hover { color: #fff; text-decoration: underline; }

.search-box { position: relative; flex: 1 1 20rem; max-width: 30rem; }
.search-box label, .version-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.search-box input {
  width: 100%;
  min-height: 2.4rem;
  padding: 0.45rem 2.55rem 0.45rem 0.75rem;
  border: 1px solid rgb(196 235 235 / 45%);
  border-radius: 0.375rem;
  background: rgb(255 255 255 / 10%);
  color: #fff;
  font: inherit;
}
.search-box input::placeholder { color: #c6dada; }
.search-box input:focus { border-color: #a4eded; background: rgb(255 255 255 / 15%); }
.search-box kbd {
  position: absolute;
  top: 50%;
  right: 0.6rem;
  padding: 0.03rem 0.35rem;
  transform: translateY(-50%);
  border: 1px solid rgb(255 255 255 / 28%);
  border-radius: 0.2rem;
  color: #d5e8e8;
  font: 0.72rem/1.3 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.header-actions { display: flex; flex: 0 0 auto; align-items: center; gap: 0.5rem; }
.header-actions select, #theme-toggle {
  min-height: 2.3rem;
  border: 1px solid rgb(196 235 235 / 45%);
  border-radius: 0.375rem;
  background: rgb(255 255 255 / 10%);
  color: var(--header-text);
  font: 600 0.8rem/1 system-ui, sans-serif;
}
.header-actions select { max-width: 9.5rem; padding: 0.35rem 0.4rem; }
.header-actions option { background: var(--surface); color: var(--text); }
#theme-toggle { display: inline-flex; padding: 0.35rem 0.6rem; align-items: center; gap: 0.35rem; cursor: pointer; }
#theme-toggle:hover { background: rgb(255 255 255 / 17%); }

.search-results {
  position: absolute;
  z-index: 30;
  top: calc(100% + 0.45rem);
  left: 50%;
  width: min(42rem, calc(100vw - 2rem));
  max-height: min(30rem, 70vh);
  overflow: auto;
  transform: translateX(-50%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--text);
}
.search-results[hidden] { display: none; }
.search-results ul { margin: 0; padding: 0; list-style: none; }
.search-results li { margin: 0; }
.search-results a { display: block; padding: 0.75rem 0.9rem; border-bottom: 1px solid var(--border); color: var(--text); text-decoration: none; }
.search-results a:hover { background: var(--surface-muted); color: var(--accent); }
.search-results strong, .search-results span { display: block; }
.search-results span { margin-top: 0.15rem; color: var(--text-muted); font-size: 0.82rem; }
.search-empty { margin: 0; padding: 0.9rem; color: var(--text-muted); }

.mobile-navigation { display: none; }

.doc-shell {
  display: grid;
  min-height: calc(100vh - var(--header-height));
  max-width: var(--site-width);
  margin: 0 auto;
  grid-template-columns: 16rem minmax(0, 1fr) 14rem;
}
.doc-shell.no-toc { grid-template-columns: 16rem minmax(0, 1fr); }
.doc-sidebar { border-right: 1px solid var(--border); background: var(--bg); }
.sidebar-sticky, .toc-sticky {
  position: sticky;
  top: var(--header-height);
  max-height: calc(100vh - var(--header-height));
  overflow: auto;
  padding: 1.75rem 1rem 2rem;
}
.sidebar-section + .sidebar-section { margin-top: 1.5rem; }
.sidebar-section h2, .on-page > p {
  margin: 0 0 0.45rem;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.sidebar-section ul, .on-page ol { margin: 0; padding: 0; list-style: none; }
.sidebar-section li, .on-page li { margin: 0; }
.nav-link, .on-page a {
  display: block;
  padding: 0.34rem 0.55rem;
  border-left: 2px solid transparent;
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.35;
  text-decoration: none;
}
.nav-link:hover, .on-page a:hover { border-left-color: var(--accent); background: var(--surface-muted); color: var(--accent); }
.nav-link.is-current { border-left-color: var(--accent); background: var(--accent-soft); color: var(--heading); font-weight: 700; }

.doc-content { min-width: 0; padding: clamp(2rem, 4vw, 4rem) clamp(1.25rem, 4vw, 4.25rem) 4rem; background: var(--surface); }
.doc-content:focus { outline: none; }
.doc-prose { max-width: 78rem; }
.doc-prose > p, .doc-prose > ul, .doc-prose > ol, .doc-prose > blockquote, .doc-prose > .admonition { max-width: var(--reading-width); }

.breadcrumbs { margin: 0 0 1.4rem; }
.breadcrumbs ol { display: flex; margin: 0; padding: 0; flex-wrap: wrap; gap: 0.35rem; color: var(--text-muted); font-size: 0.82rem; list-style: none; }
.breadcrumbs li + li::before { margin-right: 0.35rem; color: var(--border-strong); content: "/"; }

h1, h2, h3, h4 { color: var(--heading); line-height: 1.2; text-wrap: balance; }
h1 { max-width: 25ch; margin: 0 0 1.35rem; font-size: clamp(2.15rem, 5vw, 3.25rem); letter-spacing: -0.04em; }
h2 { margin: 3.1rem 0 0.9rem; padding-top: 0.2rem; font-size: clamp(1.45rem, 3vw, 1.9rem); letter-spacing: -0.025em; }
h3 { margin: 2.2rem 0 0.65rem; font-size: 1.22rem; letter-spacing: -0.015em; }
h4 { margin: 1.8rem 0 0.55rem; font-size: 1.05rem; }
h2, h3 { display: flex; align-items: baseline; gap: 0.35rem; }
.heading-anchor { color: var(--text-muted); font-size: 0.8em; font-weight: 500; opacity: 0; text-decoration: none; }
h2:hover .heading-anchor, h3:hover .heading-anchor, .heading-anchor:focus { opacity: 1; }
p { margin: 0 0 1rem; }
ul, ol { padding-left: 1.35rem; }
li + li { margin-top: 0.35rem; }

code { padding: 0.12em 0.3em; border-radius: 0.25rem; background: var(--surface-muted); font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; font-size: 0.9em; }
.code-block { max-width: 100%; margin: 1.4rem 0; overflow: hidden; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--code-bg); box-shadow: var(--shadow); }
.code-toolbar { display: flex; min-height: 2.45rem; padding: 0.4rem 0.5rem 0.4rem 0.85rem; align-items: center; justify-content: space-between; border-bottom: 1px solid rgb(255 255 255 / 16%); color: #c9dddd; }
.code-language { font: 700 0.7rem/1 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.copy-code { min-height: 1.8rem; padding: 0.25rem 0.5rem; border: 1px solid rgb(220 246 246 / 38%); border-radius: 0.3rem; background: transparent; color: #e5f3f3; cursor: pointer; font: 600 0.75rem/1 system-ui, sans-serif; }
.copy-code:hover { background: rgb(255 255 255 / 12%); }
pre { max-width: 100%; margin: 0; overflow: auto; padding: 1rem 1.15rem 1.15rem; color: var(--code-text); font: 0.88rem/1.6 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; }
pre code { padding: 0; background: transparent; color: inherit; font: inherit; }
.code-output { border-color: var(--border); background: var(--code-output); box-shadow: none; }
.code-output .code-toolbar { border-bottom-color: var(--border); color: var(--text-muted); }
.code-output pre { color: var(--text); }
.code-output .copy-code { border-color: var(--border-strong); color: var(--text); }

.table-wrap { max-width: 100%; margin: 1.4rem 0; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; min-width: 38rem; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--surface-strong); color: var(--heading); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; }
tbody tr:nth-child(even) { background: var(--surface-muted); }
tbody tr:last-child td { border-bottom: 0; }
td code { white-space: nowrap; }

blockquote, .admonition { margin: 1.4rem 0; padding: 0.85rem 1rem; border-left: 4px solid var(--accent); background: var(--surface-muted); }
blockquote { color: var(--text-muted); }
blockquote p, .admonition p { margin: 0; }
.admonition-title { margin-bottom: 0.25rem !important; color: var(--heading); font-size: 0.82rem; font-weight: 750; letter-spacing: 0.04em; text-transform: uppercase; }
.admonition-tip { border-left-color: var(--accent); }
.admonition-important { border-left-color: var(--important); }
.admonition-warning { border-left-color: var(--warning); }

.doc-toc { border-left: 1px solid var(--border); background: var(--bg); }
.on-page a { font-size: 0.8rem; }
.toc-level-3 a { padding-left: 1.2rem; font-size: 0.76rem; }

.page-navigation { display: grid; max-width: 78rem; margin-top: 3.5rem; border-top: 1px solid var(--border); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.page-navigation a { display: flex; min-height: 5rem; padding: 1rem 0; flex-direction: column; gap: 0.2rem; text-decoration: none; }
.page-navigation a + a { padding-left: 1rem; text-align: right; }
.page-navigation span { color: var(--text-muted); font-size: 0.78rem; }
.page-navigation strong { color: var(--heading); }
.page-navigation a:hover strong { color: var(--accent); }

.site-footer { display: flex; max-width: 78rem; margin-top: 2.5rem; padding-top: 1rem; flex-wrap: wrap; gap: 0.6rem 1rem; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.8rem; }
.site-footer a { color: var(--text-muted); }
.current-release { color: var(--accent); font-weight: 700; }

.home-hero { max-width: 48rem; padding: clamp(0.5rem, 3vw, 2rem) 0 2.5rem; }
.eyebrow, .home-card > span { color: var(--accent); font-size: 0.73rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.home-hero > p:not(.eyebrow) { max-width: 44rem; color: var(--text-muted); font-size: 1.14rem; }
.hero-actions { display: flex; margin-top: 1.5rem; flex-wrap: wrap; gap: 0.65rem; }
.button-link { padding: 0.55rem 0.75rem; border: 1px solid var(--accent); border-radius: 0.35rem; background: var(--accent); color: #fff; font-size: 0.88rem; font-weight: 700; text-decoration: none; }
.button-link:hover { border-color: var(--accent-hover); background: var(--accent-hover); color: #fff; }
.home-grid { display: grid; max-width: 72rem; margin: 0 0 2.5rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0.75rem; }
.home-card { display: block; padding: 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); text-decoration: none; }
.home-card:hover { border-color: var(--accent); background: var(--surface-muted); color: var(--text); }
.home-card strong { display: block; margin-top: 0.3rem; color: var(--heading); font-size: 1rem; }
.home-card p { margin: 0.35rem 0 0; color: var(--text-muted); font-size: 0.86rem; }
.homepage-banner { max-width: var(--reading-width); margin: 0 0 2.5rem; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.homepage-banner img { display: block; width: 100%; height: auto; }
.homepage > h2 { margin-top: 2.5rem; }

.external-link::after { margin-left: 0.18em; font-size: 0.72em; content: "↗"; }

@media (max-width: 78rem) {
  .doc-shell { grid-template-columns: 15rem minmax(0, 1fr); }
  .doc-toc { display: none; }
  .top-links { display: none; }
}

@media (max-width: 58rem) {
  :root { --header-height: auto; }
  .site-header { position: relative; }
  .topbar { min-height: auto; padding: 0.75rem 1rem; flex-wrap: wrap; }
  .search-box { flex-basis: calc(100% - 3.5rem); max-width: none; order: 3; }
  .header-actions { margin-left: auto; }
  #theme-toggle span:last-child { display: none; }
  .doc-shell { display: block; }
  .doc-sidebar { display: none; }
  .mobile-navigation { display: block; max-width: var(--site-width); margin: 0 auto; border-top: 1px solid rgb(255 255 255 / 16%); background: var(--header); }
  .mobile-navigation summary { padding: 0.65rem 1rem; cursor: pointer; font-size: 0.85rem; font-weight: 700; }
  .mobile-navigation .docs-navigation { padding: 0 1rem 1rem; background: var(--surface); }
  .mobile-navigation .sidebar-section { padding-top: 1rem; }
  .mobile-navigation .sidebar-section + .sidebar-section { margin-top: 0; }
  .doc-content { padding: 2rem 1.1rem 3rem; }
}

@media (max-width: 34rem) {
  .brand { font-size: 0.92rem; }
  .header-actions select { max-width: 6.7rem; }
  .search-box { flex-basis: 100%; }
  .header-actions { margin-left: auto; }
  h1 { font-size: 2.15rem; }
  table { min-width: 32rem; }
  .page-navigation { grid-template-columns: 1fr; }
  .page-navigation a + a { padding-left: 0; text-align: left; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }