:root {
  --bg: oklch(1 0 0);
  --bg-subtle: oklch(0.975 0.003 160);
  --fg: oklch(0.2 0.01 160);
  --fg-muted: oklch(0.5 0.01 160);
  --border: oklch(0.92 0.004 160);
  --accent: oklch(0.5 0.14 158);
  --accent-soft: oklch(0.96 0.03 158);
  --code-bg: oklch(0.975 0.003 160);
  --note: oklch(0.55 0.12 250);
  --tip: oklch(0.5 0.14 158);
  --warning: oklch(0.7 0.15 75);
  --danger: oklch(0.58 0.2 25);
  --ring: color-mix(in oklab, var(--accent) 55%, transparent);
  --shadow: 0 1px 2px oklch(0 0 0 / 0.04), 0 8px 24px oklch(0 0 0 / 0.06);
  --topbar-height: 3.5rem;
  --sidebar-width: 17rem;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: oklch(0.16 0.005 160);
  --bg-subtle: oklch(0.2 0.006 160);
  --fg: oklch(0.95 0.005 160);
  --fg-muted: oklch(0.7 0.01 160);
  --border: oklch(0.28 0.008 160);
  --accent: oklch(0.72 0.14 158);
  --accent-soft: oklch(0.25 0.04 158);
  --code-bg: oklch(0.2 0.006 160);
  --shadow: 0 1px 2px oklch(0 0 0 / 0.4), 0 12px 32px oklch(0 0 0 / 0.45);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--topbar-height) + 1.5rem); scroll-behavior: smooth; }
::selection { background: color-mix(in oklab, var(--accent) 25%, transparent); }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 0.35rem; }
kbd { padding: 0.05rem 0.4rem; border: 1px solid var(--border); border-radius: 0.35rem; background: var(--bg-subtle); color: var(--fg-muted); font: 0.7rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, ::before, ::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.7 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-underline-offset: 3px; }
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 0.75rem; height: var(--topbar-height); padding: 0 1rem; background: color-mix(in oklab, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.brand { font-weight: 650; font-size: 1.05rem; color: var(--fg); text-decoration: none; letter-spacing: -0.01em; }
.brand[data-has-logo] { display: inline-flex; align-items: center; }
.brand-logo { display: block; width: auto; height: 1.75rem; max-width: 12rem; object-fit: contain; }
.brand-logo-dark { display: none; }
:root[data-theme="dark"] .brand-logo-light { display: none; }
:root[data-theme="dark"] .brand-logo-dark { display: block; }
.spacer { flex: 1; }
html.is-navigating::before { position: fixed; z-index: 70; top: 0; left: 0; width: 100%; height: 2px; background: var(--accent); content: ""; transform-origin: left; animation: navigate 1.2s ease-out forwards; }
@keyframes navigate { from { transform: scaleX(0.05); } to { transform: scaleX(0.9); } }
.icon-button { display: inline-grid; place-items: center; width: 2.25rem; height: 2.25rem; border: 1px solid var(--border); border-radius: 0.6rem; background: transparent; color: var(--fg-muted); cursor: pointer; }
.icon-button:hover { background: var(--bg-subtle); color: var(--fg); }
.search-trigger { display: inline-flex; align-items: center; gap: 0.5rem; height: 2.25rem; min-width: 13rem; padding: 0 0.5rem 0 0.75rem; border: 1px solid var(--border); border-radius: 0.6rem; background: var(--bg-subtle); color: var(--fg-muted); font: inherit; font-size: 0.875rem; cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.search-trigger:hover { border-color: color-mix(in oklab, var(--fg) 25%, var(--border)); color: var(--fg); }
.search-trigger kbd { margin-left: auto; }
.menu-toggle { display: none; }
.search-overlay { position: fixed; inset: 0; z-index: 60; display: grid; align-items: start; justify-items: center; padding: 12vh 1rem 1rem; background: oklch(0 0 0 / 0.45); backdrop-filter: blur(3px); }
.search-overlay[hidden] { display: none; }
.search-dialog { width: min(36rem, 100%); overflow: hidden; border: 1px solid var(--border); border-radius: 0.9rem; background: var(--bg); box-shadow: var(--shadow); animation: pop-in 0.14s ease-out; }
@keyframes pop-in { from { opacity: 0; transform: translateY(-6px) scale(0.98); } }
.search-input-row { display: flex; align-items: center; gap: 0.7rem; padding: 0 1rem; border-bottom: 1px solid var(--border); color: var(--fg-muted); }
.search-input-row input { flex: 1; height: 3.25rem; border: 0; outline: 0; background: transparent; color: var(--fg); font: inherit; font-size: 1rem; }
.search-input-row input::-webkit-search-cancel-button { display: none; }
.search-results { max-height: min(24rem, 55vh); margin: 0; padding: 0.4rem; overflow-y: auto; list-style: none; }
.search-results li[hidden] { display: none; }
.search-results a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.6rem 0.75rem; border-radius: 0.55rem; color: var(--fg); text-decoration: none; }
.search-results a:is(:hover, .is-selected) { background: var(--accent-soft); color: var(--accent); }
.search-group { color: var(--fg-muted); font-size: 0.75rem; }
.search-empty { margin: 0; padding: 2rem 1rem; text-align: center; color: var(--fg-muted); font-size: 0.9rem; }
.shell { display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr) 15rem; max-width: 90rem; margin: 0 auto; }
.sidebar { position: sticky; top: var(--topbar-height); align-self: start; height: calc(100vh - var(--topbar-height)); overflow-y: auto; padding: 1.5rem 1rem 3rem 1.25rem; border-right: 1px solid var(--border); }
.nav-group + .nav-group { margin-top: 1.75rem; }
.sidebar { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
.nav-group h2 { margin: 0 0 0.4rem; padding: 0 0.6rem; font-size: 0.8rem; font-weight: 650; color: var(--fg); }
.nav-group ul { list-style: none; margin: 0; padding: 0; }
.nav-group a { display: block; padding: 0.3rem 0.6rem; border-radius: 0.5rem; color: var(--fg-muted); text-decoration: none; font-size: 0.92rem; line-height: 1.5; }
.nav-group a { transition: background-color 0.12s, color 0.12s; }
.nav-group a:hover { background: var(--bg-subtle); color: var(--fg); }
.nav-group a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); font-weight: 550; }
.content { min-width: 0; padding: 2.5rem 3rem 5rem; }
.article { max-width: 46rem; margin: 0 auto; }
.eyebrow { margin: 0 0 0.5rem; font-size: 0.85rem; font-weight: 600; color: var(--accent); }
.title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.article h1 { margin: 0; font-size: 2.25rem; line-height: 1.15; letter-spacing: -0.025em; text-wrap: balance; }
.copy-page { display: inline-flex; flex: none; align-items: center; gap: 0.4rem; padding: 0.35rem 0.7rem; border: 1px solid var(--border); border-radius: 0.6rem; background: var(--bg); color: var(--fg-muted); font: inherit; font-size: 0.8rem; font-weight: 500; cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.copy-page:hover { border-color: color-mix(in oklab, var(--fg) 25%, var(--border)); color: var(--fg); }
.copy-page.is-copied { color: var(--accent); border-color: var(--accent); }
.page-actions { position: relative; flex: none; margin-top: 0.3rem; }
.split-button { display: inline-flex; }
.split-button .copy-page { border-radius: 0.6rem 0 0 0.6rem; }
.copy-page-toggle { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0 0.5rem; border: 1px solid var(--border); border-left: 0; border-radius: 0 0.6rem 0.6rem 0; background: var(--bg); color: var(--fg-muted); font: inherit; font-size: 0.8rem; font-weight: 500; cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.copy-page-toggle:hover, .copy-page-toggle[aria-expanded="true"] { border-color: color-mix(in oklab, var(--fg) 25%, var(--border)); color: var(--fg); }
.copy-page-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.copy-page-toggle svg { transition: transform 0.15s; }
.copy-page-toggle.is-solo { padding: 0.35rem 0.7rem; border-left: 1px solid var(--border); border-radius: 0.6rem; }
.actions-menu { position: absolute; z-index: 40; top: calc(100% + 0.4rem); right: 0; width: 18.5rem; padding: 0.35rem; border: 1px solid var(--border); border-radius: 0.85rem; background: var(--bg); box-shadow: var(--shadow); animation: pop-in 0.12s ease-out; }
.actions-menu[hidden] { display: none; }
.menu-item { display: flex; align-items: center; gap: 0.7rem; width: 100%; padding: 0.5rem 0.6rem; border: 0; border-radius: 0.6rem; background: none; color: var(--fg); font: inherit; text-align: left; text-decoration: none; cursor: pointer; }
.menu-item:is(:hover, :focus-visible) { background: var(--bg-subtle); outline: 0; }
.menu-item > svg { flex: none; width: 2rem; height: 2rem; padding: 0.45rem; border: 1px solid var(--border); border-radius: 0.5rem; background: var(--bg); color: var(--fg-muted); }
.menu-text { display: flex; flex-direction: column; min-width: 0; line-height: 1.35; }
.menu-text strong { display: inline-flex; align-items: center; gap: 0.3rem; font-size: 0.86rem; font-weight: 550; }
.menu-text small { color: var(--fg-muted); font-size: 0.75rem; }
.menu-external { color: var(--fg-muted); }
.lead { margin: 0.75rem 0 0; font-size: 1.125rem; line-height: 1.6; color: var(--fg-muted); text-wrap: pretty; }
.prose { margin-top: 2rem; padding-top: 0.25rem; }
.prose > :first-child { margin-top: 0; }
.prose p, .prose li { text-wrap: pretty; }
.prose h2 { margin: 2.5rem 0 0.75rem; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.3; }
.prose h3 { margin: 2rem 0 0.5rem; font-size: 1.2rem; line-height: 1.4; }
.prose h4 { margin: 1.5rem 0 0.5rem; font-size: 1rem; }
.prose :is(h2, h3, h4) .anchor { margin-left: 0.4rem; color: var(--fg-muted); text-decoration: none; opacity: 0; }
.prose :is(h2, h3, h4):hover .anchor { opacity: 1; }
.prose p, .prose ul, .prose ol, .prose table, .prose pre, .prose blockquote { margin: 1rem 0; }
.prose li + li { margin-top: 0.25rem; }
.prose blockquote { padding: 0.1rem 1rem; border-left: 3px solid var(--border); color: var(--fg-muted); }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }
.prose img { max-width: 100%; height: auto; border-radius: 0.6rem; }
.prose code { padding: 0.15em 0.4em; border-radius: 0.35rem; background: var(--code-bg); border: 1px solid var(--border); font: 0.86em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.prose pre { position: relative; overflow-x: auto; padding: 1rem 1.1rem; border: 1px solid var(--border); border-radius: 0.85rem; box-shadow: 0 1px 0 var(--bg) inset; background: var(--code-bg); font-size: 0.86rem; line-height: 1.65; }
.prose pre code { padding: 0; border: 0; background: none; font-size: inherit; }
.shiki, .shiki span { color: var(--shiki-light); }
:root[data-theme="dark"] .shiki, :root[data-theme="dark"] .shiki span { color: var(--shiki-dark); }
.shiki { background: var(--code-bg) !important; }
.copy-button { position: absolute; top: 0.5rem; right: 0.5rem; padding: 0.25rem 0.6rem; border: 1px solid var(--border); border-radius: 0.45rem; background: var(--bg); color: var(--fg-muted); font: 0.72rem/1.4 inherit; cursor: pointer; opacity: 0; transition: opacity 0.15s, color 0.15s; }
.copy-button.is-copied { color: var(--accent); }
@media (hover: none) { .copy-button { opacity: 1; } }
.prose pre:hover .copy-button, .copy-button:focus-visible { opacity: 1; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; width: 100%; font-size: 0.92rem; }
.prose th, .prose td { padding: 0.6rem 0.9rem; border: 0; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.prose tr:last-child td { border-bottom: 0; }
.prose th { background: var(--bg-subtle); font-weight: 600; white-space: nowrap; }
.prose tbody tr:hover td { background: color-mix(in oklab, var(--bg-subtle) 60%, transparent); }
.prose table { border: 1px solid var(--border); border-radius: 0.75rem; }
.callout { --callout: var(--note); position: relative; margin: 1.25rem 0; padding: 0.85rem 1rem 0.85rem 2.9rem; border: 1px solid color-mix(in oklab, var(--callout) 30%, var(--border)); border-radius: 0.8rem; background: color-mix(in oklab, var(--callout) 7%, var(--bg)); }
.callout::before { position: absolute; left: 1rem; top: 1.05rem; width: 1.1rem; height: 1.1rem; background: var(--callout); content: ""; -webkit-mask: var(--icon) center / contain no-repeat; mask: var(--icon) center / contain no-repeat; --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E"); }
.callout-tip { --callout: var(--tip); }
.callout-tip::before { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18h6M10 22h4M12 2a7 7 0 0 0-4 12.7c.6.5 1 1.3 1 2.3h6c0-1 .4-1.8 1-2.3A7 7 0 0 0 12 2Z'/%3E%3C/svg%3E"); }
.callout-warning { --callout: var(--warning); }
.callout-warning::before { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m10.3 3.9-8.2 14A2 2 0 0 0 3.8 21h16.4a2 2 0 0 0 1.7-3l-8.2-14a2 2 0 0 0-3.4 0ZM12 9v4M12 17h.01'/%3E%3C/svg%3E"); }
.callout-danger { --callout: var(--danger); }
.callout-danger::before { --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7.9 2h8.2L22 7.9v8.2L16.1 22H7.9L2 16.1V7.9ZM12 8v4M12 16h.01'/%3E%3C/svg%3E"); }
.callout > :first-child { margin-top: 0; }
.callout > :last-child { margin-bottom: 0; }
.steps { margin: 1.5rem 0; counter-reset: step; }
.step { position: relative; padding: 0 0 1.5rem 2.75rem; counter-increment: step; }
.step::before { position: absolute; left: 0; top: 0; display: grid; place-items: center; width: 1.9rem; height: 1.9rem; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; font-weight: 650; content: counter(step); }
.step:not(:last-child)::after { position: absolute; left: 0.93rem; top: 2.2rem; bottom: 0.3rem; width: 1px; background: var(--border); content: ""; }
.step-title { margin: 0.1rem 0 0.4rem !important; font-weight: 650; font-size: 1.02rem; }
.step-title + p { margin-top: 0; }
.step > :last-child { margin-bottom: 0; }
.tabs { margin: 1.25rem 0; }
.tabs pre { margin: 1rem 0 0; }
.tab-list { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); overflow-x: auto; }
.tab-button { margin-bottom: -1px; padding: 0.5rem 0.85rem; transition: color 0.12s; border: 0; border-bottom: 2px solid transparent; background: none; color: var(--fg-muted); font: inherit; font-size: 0.9rem; cursor: pointer; }
.tab-button:hover { color: var(--fg); }
.tab-button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 550; }
.tab { padding: 0; }
.tabs:not(.is-ready) .tab::before { display: block; margin-top: 0.5rem; font-weight: 600; content: attr(data-title); }
.tab[hidden] { display: none; }
.tab > :first-child { margin-top: 1rem; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.pager a { display: flex; flex-direction: column; gap: 0.2rem; min-width: 0; padding: 0.85rem 1.1rem; border: 1px solid var(--border); border-radius: 0.8rem; text-decoration: none; color: var(--fg); font-weight: 550; transition: border-color 0.15s, background-color 0.15s; }
.pager a:hover { border-color: var(--accent); background: var(--accent-soft); }
.pager small { display: flex; align-items: center; gap: 0.4rem; color: var(--fg-muted); font-size: 0.75rem; font-weight: 450; }
.pager .next { grid-column: 2; align-items: flex-end; text-align: right; }
.pager .next small { justify-content: flex-end; }
.pager .previous { grid-column: 1; }
.toc { position: sticky; top: var(--topbar-height); align-self: start; max-height: calc(100vh - var(--topbar-height)); overflow-y: auto; padding: 2.5rem 1rem 2rem 0; font-size: 0.85rem; }
.toc h2 { margin: 0 0 0.6rem; font-size: 0.8rem; font-weight: 650; color: var(--fg); }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--border); }
.toc a { display: block; padding: 0.2rem 0 0.2rem 0.8rem; margin-left: -1px; border-left: 1px solid transparent; color: var(--fg-muted); text-decoration: none; line-height: 1.45; }
.toc a.depth-3 { padding-left: 1.6rem; }
.toc a:hover { color: var(--fg); }
.toc a { transition: color 0.12s, border-color 0.12s; }
.toc a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 550; }
.powered-by { display: flex; justify-content: flex-end; max-width: 46rem; margin: 3rem auto 0; padding-top: 1.25rem; border-top: 1px solid var(--border); }
.powered-by a { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--fg-muted); font-size: 0.8rem; text-decoration: none; transition: color 0.15s; }
.powered-by a:hover { color: var(--fg); }
.powered-by strong { font-weight: 600; color: var(--fg); }
.not-found { max-width: 28rem; margin: 12vh auto; text-align: center; }
.not-found h1 { font-size: 1.6rem; margin: 0 0 0.5rem; }
.not-found::before { display: block; margin-bottom: 0.5rem; font-size: 4rem; font-weight: 700; letter-spacing: -0.04em; color: var(--accent-soft); -webkit-text-stroke: 1px var(--accent); content: "404"; }
.not-found p { color: var(--fg-muted); }
@media (max-width: 1200px) { .shell { grid-template-columns: var(--sidebar-width) minmax(0, 1fr); } .toc { display: none; } }
@media (max-width: 900px) {
  .shell { display: block; }
  .menu-toggle { display: inline-grid; }
  .sidebar { position: fixed; z-index: 20; top: var(--topbar-height); left: 0; width: min(20rem, 85vw); height: calc(100dvh - var(--topbar-height)); background: var(--bg); transform: translateX(-100%); transition: transform 0.2s; }
  body.nav-open .sidebar { transform: none; box-shadow: 0 0 0 100vmax rgb(0 0 0 / 0.35); }
  .content { padding: 1.75rem 1.25rem 4rem; }
  .article h1 { font-size: 1.75rem; }
  .search-trigger { min-width: 0; width: 2.25rem; padding: 0; justify-content: center; }
  .search-trigger :is(.search-label, kbd) { display: none; }
  .copy-page span { display: none; }
  .actions-menu { position: fixed; top: auto; right: 0.75rem; bottom: 0.75rem; left: 0.75rem; width: auto; }
  .pager { grid-template-columns: 1fr; }
  .pager .next, .pager .previous { grid-column: 1; }
  .search-overlay { padding-top: 6vh; }
}
@media print { .topbar, .sidebar, .toc, .pager, .powered-by, .page-actions, .copy-button, .search-overlay { display: none; } .shell { display: block; } }