:root {
  color-scheme: light;
  --topbar-height: 64px;
  --sidebar-width: 286px;
  --toc-width: 238px;
  --blue: #0969da;
  --blue-strong: #0550ae;
  --blue-soft: #ddf4ff;
  --ink: #1f2328;
  --muted: #59636e;
  --subtle: #f6f8fa;
  --canvas: #ffffff;
  --line: #d0d7de;
  --line-muted: #d8dee4;
  --green: #1a7f37;
  --green-soft: #dafbe1;
  --amber: #9a6700;
  --amber-soft: #fff8c5;
  --red: #cf222e;
  --red-soft: #ffebe9;
  --code-bg: #f6f8fa;
  --shadow: 0 12px 30px rgba(31, 35, 40, 0.12);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --blue: #58a6ff;
  --blue-strong: #79c0ff;
  --blue-soft: #0d2847;
  --ink: #e6edf3;
  --muted: #9da7b1;
  --subtle: #161b22;
  --canvas: #0d1117;
  --line: #30363d;
  --line-muted: #21262d;
  --green: #56d364;
  --green-soft: #12351f;
  --amber: #e3b341;
  --amber-soft: #3b2e08;
  --red: #ff7b72;
  --red-soft: #3f171a;
  --code-bg: #161b22;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
  html[data-theme="system"] {
    color-scheme: dark;
    --blue: #58a6ff;
    --blue-strong: #79c0ff;
    --blue-soft: #0d2847;
    --ink: #e6edf3;
    --muted: #9da7b1;
    --subtle: #161b22;
    --canvas: #0d1117;
    --line: #30363d;
    --line-muted: #21262d;
    --green: #56d364;
    --green-soft: #12351f;
    --amber: #e3b341;
    --amber-soft: #3b2e08;
    --red: #ff7b72;
    --red-soft: #3f171a;
    --code-bg: #161b22;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-height) + 18px);
}

body {
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  margin: 0;
}

button,
input {
  font: inherit;
}

a {
  color: var(--blue);
}

.skip-link {
  background: var(--blue);
  color: white;
  left: 12px;
  padding: 8px 12px;
  position: fixed;
  top: -100px;
  z-index: 100;
}

.skip-link:focus {
  top: 8px;
}

.topbar {
  align-items: center;
  background: color-mix(in srgb, var(--canvas) 94%, transparent);
  border-bottom: 1px solid var(--line-muted);
  display: flex;
  gap: 14px;
  height: var(--topbar-height);
  inset: 0 0 auto;
  padding: 0 24px;
  position: fixed;
  z-index: 40;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: flex;
  font-size: 1.05rem;
  font-weight: 700;
  gap: 9px;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  border-radius: 6px;
}

.brand b {
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-weight: 500;
  margin-left: 2px;
  padding-left: 11px;
}

.runtime-badge {
  align-items: center;
  background: var(--subtle);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  display: flex;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.75rem;
  gap: 7px;
  padding: 5px 8px;
  white-space: nowrap;
}

.runtime-badge span {
  background: var(--green);
  border-radius: 50%;
  height: 7px;
  width: 7px;
}

.top-actions {
  align-items: center;
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.search-trigger,
.theme-button,
.top-link,
.icon-button {
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  min-height: 34px;
}

.search-trigger,
.theme-button {
  align-items: center;
  cursor: pointer;
  display: inline-flex;
  gap: 28px;
  padding: 5px 9px;
}

.search-trigger {
  color: var(--muted);
  min-width: 210px;
  text-align: left;
}

kbd {
  background: var(--subtle);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted);
  font: 0.72rem ui-monospace, SFMono-Regular, Consolas, monospace;
  margin-left: auto;
  padding: 1px 6px;
}

.top-link {
  align-items: center;
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 600;
  padding: 5px 10px;
  text-decoration: none;
}

.theme-button {
  font-size: 0.8rem;
  gap: 0;
  white-space: nowrap;
}

.search-trigger:hover,
.theme-button:hover,
.top-link:hover,
.icon-button:hover {
  background: var(--subtle);
  border-color: var(--muted);
}

.menu-button {
  cursor: pointer;
  display: none;
  height: 36px;
  padding: 8px;
  width: 36px;
}

.menu-button span {
  background: currentColor;
  display: block;
  height: 2px;
  margin: 3px 0;
  width: 18px;
}

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--toc-width);
  margin: var(--topbar-height) auto 0;
  max-width: 1600px;
  min-height: calc(100vh - var(--topbar-height));
}

.sidebar {
  border-right: 1px solid var(--line-muted);
  height: calc(100vh - var(--topbar-height));
  overflow-y: auto;
  padding: 24px 18px;
  position: sticky;
  top: var(--topbar-height);
}

.sidebar-intro {
  background: var(--blue-soft);
  border-left: 3px solid var(--blue);
  border-radius: 0 6px 6px 0;
  display: flex;
  flex-direction: column;
  margin-bottom: 24px;
  padding: 11px 12px;
}

.sidebar-intro strong {
  font-size: 0.88rem;
}

.sidebar-intro span {
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 2px;
}

.nav-group {
  margin-bottom: 23px;
}

.nav-group h2 {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 8px 6px;
  text-transform: uppercase;
}

.nav-group a {
  border-radius: 5px;
  color: var(--ink);
  display: block;
  font-size: 0.88rem;
  margin: 1px 0;
  padding: 6px 8px;
  text-decoration: none;
}

.nav-group a:hover {
  background: var(--subtle);
}

.nav-group a.active {
  background: var(--blue-soft);
  color: var(--blue-strong);
  font-weight: 650;
}

.sidebar-footer {
  border-top: 1px solid var(--line-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 8px 6px;
}

.sidebar-footer a {
  font-size: 0.8rem;
  text-decoration: none;
}

.content-column {
  min-width: 0;
  padding: 28px clamp(24px, 5vw, 72px) 50px;
}

.notice-strip {
  background: var(--blue-soft);
  border: 1px solid color-mix(in srgb, var(--blue) 35%, var(--line));
  border-radius: 6px;
  color: var(--ink);
  font-size: 0.85rem;
  margin: 0 auto 32px;
  max-width: 880px;
  padding: 9px 12px;
}

.markdown-body {
  font-size: 1rem;
  margin: 0 auto;
  max-width: 880px;
  min-width: 0;
  min-height: 55vh;
  overflow-wrap: anywhere;
  outline: none;
}

.markdown-body > :first-child {
  margin-top: 0 !important;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  color: var(--ink);
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1.25;
  position: relative;
}

.markdown-body h1 {
  border-bottom: 1px solid var(--line-muted);
  font-size: 2.4rem;
  margin: 0 0 20px;
  padding-bottom: 12px;
}

.markdown-body h2 {
  border-bottom: 1px solid var(--line-muted);
  font-size: 1.55rem;
  margin: 42px 0 16px;
  padding-bottom: 8px;
}

.markdown-body h3 {
  font-size: 1.22rem;
  margin: 30px 0 12px;
}

.markdown-body h4 {
  font-size: 1rem;
  margin: 24px 0 10px;
}

.heading-anchor {
  color: var(--blue);
  font-weight: 400;
  left: -1.1em;
  opacity: 0;
  position: absolute;
  text-decoration: none;
}

.markdown-body h2:hover .heading-anchor,
.markdown-body h3:hover .heading-anchor,
.heading-anchor:focus {
  opacity: 1;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body table,
.markdown-body pre {
  margin-bottom: 16px;
}

.markdown-body li + li {
  margin-top: 5px;
}

.markdown-body a {
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.markdown-body strong {
  font-weight: 650;
}

.markdown-body blockquote,
.callout {
  background: var(--blue-soft);
  border: 1px solid color-mix(in srgb, var(--blue) 32%, var(--line));
  border-left: 4px solid var(--blue);
  border-radius: 0 6px 6px 0;
  color: var(--ink);
  margin-inline: 0;
  padding: 12px 16px;
}

.markdown-body blockquote > :last-child,
.callout > :last-child {
  margin-bottom: 0;
}

.callout.error {
  background: var(--red-soft);
  border-color: var(--red);
}

.markdown-body code {
  background: var(--code-bg);
  border-radius: 4px;
  font: 0.87em ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  padding: 0.16em 0.34em;
}

.markdown-body pre {
  background: var(--code-bg);
  border: 1px solid var(--line-muted);
  border-radius: 6px;
  max-width: 100%;
  overflow: auto;
  padding: 16px;
  position: relative;
}

.markdown-body pre code {
  background: transparent;
  padding: 0;
  white-space: pre;
}

.copy-button {
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.72rem;
  padding: 4px 8px;
  position: absolute;
  right: 8px;
  top: 8px;
}

.markdown-body table {
  border-collapse: collapse;
  display: block;
  max-width: 100%;
  overflow: auto;
  width: max-content;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid var(--line);
  padding: 8px 11px;
  text-align: left;
  vertical-align: top;
}

.markdown-body th {
  background: var(--subtle);
  font-weight: 650;
}

.markdown-body tr:nth-child(even) td {
  background: color-mix(in srgb, var(--subtle) 65%, transparent);
}

.markdown-body img {
  background: var(--subtle);
  border: 1px solid var(--line);
  border-radius: 6px;
  display: block;
  height: auto;
  margin: 22px auto;
  max-height: min(720px, calc(100svh - var(--topbar-height) - 48px));
  max-width: min(100%, 760px);
  object-fit: contain;
  width: auto;
}

.markdown-body img.docs-image-portrait {
  width: min(100%, 340px);
}

.markdown-body img.docs-image-landscape {
  width: min(100%, 760px);
}

.markdown-body img.project-badge {
  background: transparent;
  border: 0;
  border-radius: 0;
  height: auto;
  margin: 8px auto;
  max-height: 55px;
  width: min(250px, 100%);
}

.markdown-body hr {
  border: 0;
  border-top: 1px solid var(--line-muted);
  margin: 32px 0;
}

.toc {
  height: calc(100vh - var(--topbar-height));
  overflow-y: auto;
  padding: 31px 22px;
  position: sticky;
  top: var(--topbar-height);
}

.toc > strong {
  display: block;
  font-size: 0.78rem;
  margin-bottom: 9px;
}

.toc nav {
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc a,
.toc span {
  color: var(--muted);
  font-size: 0.77rem;
  line-height: 1.35;
  padding: 5px 0 5px 12px;
  text-decoration: none;
}

.toc a:hover {
  color: var(--blue);
}

.toc .toc-h3 {
  padding-left: 24px;
}

.page-navigation {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr 1fr;
  margin: 56px auto 0;
  max-width: 880px;
}

.page-navigation a {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  min-height: 78px;
  padding: 12px 14px;
  text-decoration: none;
}

.page-navigation a:hover {
  border-color: var(--blue);
}

.page-navigation span {
  color: var(--muted);
  font-size: 0.75rem;
}

.page-navigation strong {
  color: var(--blue);
  font-size: 0.92rem;
  margin-top: 4px;
}

.next-page {
  align-items: flex-end;
  text-align: right;
}

.content-footer {
  border-top: 1px solid var(--line-muted);
  color: var(--muted);
  display: flex;
  font-size: 0.76rem;
  justify-content: space-between;
  margin: 38px auto 0;
  max-width: 880px;
  padding-top: 18px;
}

.nav-backdrop {
  display: none;
}

.search-dialog {
  background: transparent;
  border: 0;
  color: var(--ink);
  overflow: visible;
  padding: 0;
  width: min(640px, calc(100vw - 28px));
}

.search-dialog::backdrop {
  background: rgba(31, 35, 40, 0.55);
}

.search-panel {
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.search-header {
  align-items: center;
  border-bottom: 1px solid var(--line-muted);
  display: flex;
  justify-content: space-between;
  padding: 12px 14px;
}

.search-header label {
  font-weight: 650;
}

.search-header button {
  background: transparent;
  border: 0;
  color: var(--blue);
  cursor: pointer;
  font-size: 0.8rem;
}

.search-panel input {
  background: var(--canvas);
  border: 1px solid var(--blue);
  border-radius: 6px;
  color: var(--ink);
  display: block;
  margin: 14px;
  outline: 3px solid color-mix(in srgb, var(--blue) 18%, transparent);
  padding: 10px 12px;
  width: calc(100% - 28px);
}

.search-results {
  border-top: 1px solid var(--line-muted);
  max-height: min(55vh, 480px);
  overflow-y: auto;
  padding: 8px;
}

.search-results > p {
  color: var(--muted);
  font-size: 0.86rem;
  margin: 18px;
}

.search-results a {
  border-radius: 6px;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  padding: 10px 12px;
  text-decoration: none;
}

.search-results a:hover,
.search-results a:focus {
  background: var(--blue-soft);
  outline: none;
}

.search-results a strong {
  font-size: 0.9rem;
}

.search-results a span {
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 2px;
}

.loading-state {
  align-items: center;
  color: var(--muted);
  display: flex;
  gap: 10px;
  padding: 50px 0;
}

.loading-state span {
  animation: pulse 900ms ease-in-out infinite alternate;
  background: var(--blue);
  border-radius: 50%;
  height: 10px;
  width: 10px;
}

@keyframes pulse {
  to { opacity: 0.25; }
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  }

  .toc {
    display: none;
  }
}

@media (max-width: 820px) {
  .topbar {
    gap: 9px;
    padding: 0 12px;
  }

  .menu-button {
    display: block;
    flex: 0 0 36px;
  }

  .brand b,
  .runtime-badge,
  .top-link,
  .theme-button,
  .search-trigger span,
  .search-trigger kbd {
    display: none;
  }

  .search-trigger {
    min-width: 36px;
    padding: 0;
    position: relative;
    width: 36px;
  }

  .search-trigger::before {
    border: 2px solid currentColor;
    border-radius: 50%;
    content: "";
    height: 11px;
    left: 9px;
    position: absolute;
    top: 8px;
    width: 11px;
  }

  .search-trigger::after {
    background: currentColor;
    content: "";
    height: 2px;
    left: 21px;
    position: absolute;
    top: 21px;
    transform: rotate(45deg);
    width: 7px;
  }

  .app-shell {
    display: block;
  }

  .sidebar {
    background: var(--canvas);
    box-shadow: var(--shadow);
    height: calc(100vh - var(--topbar-height));
    left: 0;
    max-width: 88vw;
    position: fixed;
    top: var(--topbar-height);
    transform: translateX(-105%);
    transition: transform 180ms ease;
    width: var(--sidebar-width);
    z-index: 35;
  }

  .nav-backdrop {
    background: rgba(31, 35, 40, 0.45);
    border: 0;
    display: block;
    inset: var(--topbar-height) 0 0;
    opacity: 0;
    pointer-events: none;
    position: fixed;
    transition: opacity 180ms ease;
    z-index: 34;
  }

  .nav-open {
    overflow: hidden;
  }

  .nav-open .sidebar {
    transform: translateX(0);
  }

  .nav-open .nav-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .content-column {
    padding: 20px 16px 40px;
  }

  .notice-strip {
    margin-bottom: 25px;
  }

  .heading-anchor {
    display: none;
  }

  .markdown-body img {
    margin: 18px auto;
  }

  .markdown-body img.docs-image-portrait {
    width: min(92%, 300px);
  }
}

@media (max-width: 520px) {
  .brand span {
    font-size: 0.92rem;
  }

  .brand img {
    height: 30px;
    width: 30px;
  }

  .markdown-body {
    font-size: 0.95rem;
  }

  .markdown-body h1 {
    font-size: 1.85rem;
    line-height: 1.2;
  }

  .markdown-body h2 {
    font-size: 1.35rem;
    margin-top: 34px;
  }

  .markdown-body h3 {
    font-size: 1.12rem;
  }

  .markdown-body ul,
  .markdown-body ol {
    padding-left: 1.4rem;
  }

  .markdown-body blockquote,
  .callout {
    padding: 10px 12px;
  }

  .markdown-body th,
  .markdown-body td {
    padding: 7px 9px;
  }

  .page-navigation {
    grid-template-columns: 1fr;
  }

  .content-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }

  .loading-state span {
    animation: none;
  }
}