/* Undra site, shared foundation: tokens, type, header, buttons, code, tabs, tables, footer.
   Dark is the default; light is opted into with data-theme="light". The palette is v1's (one orange accent). No italics in display type. */
:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --bg-soft: #0e0e0e;
  --surface: #111111;
  --surface-2: #161616;
  --surface-3: #1d1d1d;
  --line: #232323;
  --line-strong: #353535;
  --text: #ededea;
  --prose: #c9c9c4;
  --text-2: #a4a49e;
  --text-3: #8a8a84;
  --accent: #ff6a2a;
  --accent-hi: #ff9a6b;
  --accent-ink: #0a0a0a;
  --accent-soft: rgba(255, 106, 42, 0.11);
  --accent-line: rgba(255, 106, 42, 0.42);
  --glow: rgba(255, 106, 42, 0.17);
  --code-bg: #0d0d0d;
  --grain: 0.055;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 24px 60px -24px rgba(0, 0, 0, 0.8);

  --s-kw: #ff9a6b;
  --s-str: #c4d99a;
  --s-num: #e6c07b;
  --s-ty: #9ecbe6;
  --s-attr: #c6aaf0;
  --s-fn: #ededea;
  --s-com: #86867f;

  --font-body: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --radius: 14px;
  --ok: var(--s-str);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f6f2;
  --bg-soft: #f1f0eb;
  --surface: #ffffff;
  --surface-2: #faf9f6;
  --surface-3: #efeee9;
  --line: #e2e0d9;
  --line-strong: #cbc8bf;
  --text: #141413;
  --prose: #2c2c29;
  --text-2: #56564f;
  --text-3: #6b6a62;
  --accent: #c2410c;
  --accent-hi: #b23a09;
  --accent-ink: #ffffff;
  --accent-soft: rgba(194, 65, 12, 0.08);
  --accent-line: rgba(194, 65, 12, 0.4);
  --glow: rgba(255, 106, 42, 0.16);
  --code-bg: #fbfaf7;
  --grain: 0.04;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset, 0 24px 50px -28px rgba(40, 30, 10, 0.25);

  --s-kw: #b23a09;
  --s-str: #4d7c0f;
  --s-num: #92590a;
  --s-ty: #0e7490;
  --s-attr: #6d28d9;
  --s-fn: #141413;
  --s-com: #6f6e66;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg);
  color: var(--text-2); font: 400 1.0625rem/1.6 var(--font-body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
/* grain: a tiny tiled noise, fixed, never interactive */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: var(--grain);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="light"] body::after { mix-blend-mode: multiply; filter: invert(1); }

img, svg { display: block; max-width: 100%; }
a { color: var(--text); text-decoration-color: var(--line-strong); text-underline-offset: 3px; transition: text-decoration-color .15s; }
a:hover { text-decoration-color: var(--accent); }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
button { font: inherit; color: inherit; cursor: pointer; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--accent); color: var(--accent-ink); padding: 10px 14px; border-radius: 8px; font-weight: 600; }
.skip:focus { top: 12px; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* type */
h1, h2, h3, h4 { color: var(--text); margin: 0; font-weight: 600; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -.03em; line-height: 1.05; }
h2 { font-size: 2rem; letter-spacing: -.02em; line-height: 1.15; }
h3 { font-size: 1.25rem; letter-spacing: -.01em; line-height: 1.3; }
.eyebrow { font: 500 .75rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin: 0 0 14px; }
.lede { font-size: 1.1875rem; line-height: 1.55; color: var(--text-2); max-width: 62ch; margin: 16px 0 0; text-wrap: pretty; }
.num, .mono, td.n { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
code, kbd, samp, pre { font-family: var(--font-mono); }
:not(pre) > code { font-size: .86em; background: var(--surface-2); border: 1px solid var(--line); padding: .1em .38em; border-radius: 6px; color: var(--text); white-space: nowrap; }
kbd { font-size: .72rem; border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 5px; padding: 1px 5px; color: var(--text-2); background: var(--surface); }
@media (max-width: 560px) { :not(pre) > code { white-space: break-spaces; overflow-wrap: anywhere; } }
:not(pre) > code.cw { white-space: break-spaces; overflow-wrap: anywhere; }

/* header: glass, sticky */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 72%, transparent); -webkit-backdrop-filter: saturate(1.4) blur(12px); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 8px; height: 56px; }
.brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; color: var(--text); font-weight: 600; font-size: 1.0625rem; letter-spacing: -.02em; margin-right: 12px; }
.brand svg { width: 24px; height: 24px; }
.nav { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav a { color: var(--text-2); text-decoration: none; font-size: .9rem; font-weight: 500; padding: 6px 11px; border-radius: 8px; transition: color .15s, background .15s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--surface-3); }
.nav .sp { flex: 1; }
.nav-gh { display: inline-flex; align-items: center; gap: 6px; }
.nav-gh svg { width: 15px; height: 15px; }
.icon-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 0; background: transparent; border-radius: 8px; color: var(--text-2); transition: color .15s, background .15s; }
.icon-btn:hover { color: var(--text); background: var(--surface-3); }
.icon-btn svg { width: 17px; height: 17px; }
.search-btn { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 8px 0 11px; border: 1px solid var(--line); background: var(--surface); border-radius: 8px; color: var(--text-3); font-size: .86rem; transition: border-color .15s, color .15s; }
.search-btn:hover { border-color: var(--line-strong); color: var(--text); }
.search-btn svg { width: 15px; height: 15px; }
.search-btn kbd { margin-left: 14px; }
.i-moon { display: none; }
:root[data-theme="light"] .i-sun { display: none; }
:root[data-theme="light"] .i-moon { display: block; }
.menu-btn { display: none; }
@media (max-width: 899px) { .search-btn span, .search-btn kbd { display: none; } .search-btn { width: 34px; padding: 0; justify-content: center; border-color: transparent; background: transparent; } }
@media (max-width: 719px) {
  .js .menu-btn { display: inline-grid; }
  .js .nav { position: absolute; top: 56px; left: 0; right: 0; flex-direction: column; align-items: stretch; padding: 8px var(--gutter) 14px; background: var(--bg); border-bottom: 1px solid var(--line); display: none; }
  .js .site-header.open .nav { display: flex; }
  .js .nav .sp { display: none; }
  .js .nav a { padding: 11px 10px; font-size: 1rem; }
  .js .brand { margin-right: auto; }
  html:not(.js) .site-header .wrap { height: auto; flex-wrap: wrap; padding-block: 8px; }
  html:not(.js) .nav { flex-wrap: wrap; }
}
html:not(.js) [data-theme-toggle], html:not(.js) .search-btn, html:not(.js) .menu-btn, html:not(.js) .copy { display: none; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 42px; padding: 0 18px; border-radius: 10px; font-weight: 500; font-size: .95rem; text-decoration: none; border: 1px solid transparent; transition: background .15s, border-color .15s, transform .15s; }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn-primary:hover { background: var(--accent-hi); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: var(--surface); }
.btn-ghost:hover { background: var(--surface-3); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border: 1px solid var(--line-strong); border-radius: 999px; font: 500 .75rem/1 var(--font-mono); color: var(--text-2); text-decoration: none; background: var(--surface); }
a.pill:hover { color: var(--text); border-color: var(--accent-line); }
.pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* status chips: one scale from the accent to neutral, the same on the roadmap and the landing page, light and dark.
   Shipped is solid accent, Next an accent outline, Later a neutral outline, Exploring a dashed neutral one. */
.st { display: inline-block; flex: none; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line-strong); font: 500 .7rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-2); background: transparent; white-space: nowrap; }
.st-shipped { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.st-next { color: var(--accent); border-color: var(--accent); }
.st-later { color: var(--text-2); border-color: var(--line-strong); }
.st-exploring { color: var(--text-3); border-style: dashed; border-color: var(--line-strong); }
.st-no { color: var(--text-3); border-color: var(--line); }

/* code: header bar, copy button, tokens */
.code { position: relative; background: var(--code-bg); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: 1.25rem 0; text-align: left; }
.code-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 6px 0 14px; height: 38px; border-bottom: 1px solid var(--line); background: var(--surface); font: 400 .75rem/1 var(--font-mono); color: var(--text-3); }
.code-bar .lang { text-transform: uppercase; letter-spacing: .08em; font-size: .68rem; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; font-size: .84rem; line-height: 1.7; tab-size: 4; color: var(--text); -webkit-overflow-scrolling: touch; }
.code pre code { font-family: inherit; background: none; border: 0; padding: 0; white-space: pre; }
.copy { display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 8px; border-radius: 7px; border: 1px solid transparent; background: transparent; color: var(--text-3); font: 400 .72rem/1 var(--font-mono); transition: color .15s, background .15s; }
.copy:hover { color: var(--text); background: var(--surface-3); }
.copy.done { color: var(--accent); }
.copy svg { width: 13px; height: 13px; }
.code > .copy { position: absolute; top: 6px; right: 6px; }
.tok-kw { color: var(--s-kw); } .tok-str { color: var(--s-str); } .tok-num { color: var(--s-num); } .tok-ty { color: var(--s-ty); }
.tok-attr { color: var(--s-attr); } .tok-fn { color: var(--s-fn); } .tok-com { color: var(--s-com); } .tok-dim { color: var(--text-3); } .tok-acc { color: var(--accent); }

/* a collapsed block of code: a closed <details> with a button-like summary (the landing page and the reference pages) */
.reveal-code { margin-top: 18px; }
.reveal-code > summary { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; list-style: none; padding: 10px 16px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); color: var(--text); font-weight: 500; font-size: .95rem; transition: border-color .15s, background .15s; }
.reveal-code > summary::-webkit-details-marker { display: none; }
.reveal-code > summary::before { content: ""; width: 7px; height: 7px; border-right: 1.6px solid var(--accent); border-bottom: 1.6px solid var(--accent); transform: rotate(-45deg); transition: transform .2s; }
.reveal-code[open] > summary::before { transform: rotate(45deg); }
.reveal-code > summary:hover { border-color: var(--accent-line); background: var(--surface-2); }

/* tabs: pills, roving tabindex (markup built by site.js) */
.tablist { display: inline-flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); max-width: 100%; overflow-x: auto; scrollbar-width: none; }
.tablist::-webkit-scrollbar { display: none; }
.tab { flex: none; padding: 6px 13px; border: 0; background: transparent; color: var(--text-2); font: 500 .86rem/1.3 var(--font-body); border-radius: 7px; white-space: nowrap; transition: color .15s, background .15s; }
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { color: var(--text); background: var(--surface-3); box-shadow: 0 0 0 1px var(--line-strong); }
.js [data-tabs] .tab-panel[hidden] { display: none; }
.tab-label { font: 500 .75rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); margin: 1.5rem 0 .5rem; }
.js .tab-label { display: none; }

/* callouts and tables */
.callout { margin: 1.5rem 0; padding: 14px 18px; border: 1px solid var(--accent-line); border-left-width: 3px; border-radius: 10px; background: var(--accent-soft); color: var(--prose); font-size: .97rem; }
.callout p { margin: .4rem 0 0; } .callout > :first-child { margin-top: 0; }
.callout strong:first-child { color: var(--accent); }
.table-wrap { overflow-x: auto; margin: 1.25rem 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: 11px 16px; vertical-align: top; border-bottom: 1px solid var(--line); }
th { font: 500 .72rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); background: var(--surface-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td { color: var(--prose); }

/* footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 96px; padding: 56px 0 36px; background: var(--bg-soft); }
.footer-grid { display: grid; gap: 36px; grid-template-columns: 1.5fr 1fr 1fr 1fr; }
.footer-grid h3 { font: 500 .72rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); margin-bottom: 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-grid a { color: var(--text-2); text-decoration: none; font-size: .93rem; }
.footer-grid a:hover { color: var(--text); }
.footer-note { max-width: 34ch; font-size: .93rem; margin: 14px 0 0; }
.footer-base { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-size: .84rem; color: var(--text-3); }
.footer-base a { color: var(--text-2); }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-grid > :first-child { grid-column: 1 / -1; } }

.page-head { padding: clamp(48px, 8vw, 96px) 0 24px; max-width: 760px; }
.page-head h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }

/* search (Cmd/Ctrl-K), built by search.js */
.kbar { position: fixed; inset: 0; z-index: 300; display: flex; justify-content: center; align-items: flex-start; padding: 12vh 16px 16px; background: rgba(0,0,0,.55); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.kbar[hidden] { display: none; }
.kbar-panel { width: 100%; max-width: 640px; max-height: 70vh; display: flex; flex-direction: column; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface); box-shadow: 0 30px 80px -20px rgba(0,0,0,.6); overflow: hidden; }
.kbar-in { display: flex; align-items: center; gap: 10px; padding: 0 14px; height: 54px; border-bottom: 1px solid var(--line); color: var(--text-3); }
.kbar-in svg { width: 17px; height: 17px; flex: none; }
.kbar-in input { flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; background: none; color: var(--text); font: 400 1.0625rem var(--font-body); }
.kbar ul { list-style: none; margin: 0; padding: 6px; overflow-y: auto; }
.kbar li { display: grid; gap: 2px; padding: 9px 12px; border-radius: 8px; cursor: pointer; }
.kbar li[aria-selected="true"] { background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent-line); }
.kbar-t { color: var(--text); font-weight: 500; font-size: .95rem; }
.kbar-t i { font-style: normal; color: var(--text-3); }
.kbar-s { color: var(--text-2); font-size: .84rem; line-height: 1.45; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.kbar mark { background: none; color: var(--accent); font-weight: 500; }
.kbar-status { margin: 0; padding: 8px 14px; border-top: 1px solid var(--line); font: 400 .72rem/1.3 var(--font-mono); color: var(--text-3); }

/* reveal: opacity + 8px only; hidden only once the observer exists and motion is welcome */
@media (prefers-reduced-motion: no-preference) {
  .reveal-ready .reveal { opacity: 0; transform: translateY(8px); transition: opacity .25s ease-out, transform .25s ease-out; }
  .reveal-ready .reveal.in { opacity: 1; transform: none; }
}
@media print { .site-header, .copy, .icon-btn, .search-btn { display: none !important; } }