:root {
    --bg: #fbfbfa;
    --panel: #f3f2ef;
    --border: #e3e2de;
    --text: #1f1f1d;
    --dim: #6b6a65;
    --accent: #3b6fd8;
    --code-bg: #f1f0ec;
    --error: #c4352b;
    --ok: #2f855a;
    --t-keyword: #8a3ab9;
    --t-string: #2f7d32;
    --t-number: #b35c00;
    --t-comment: #8d8b84;
    --t-type: #1f6fb2;
    --t-attr: #a83279;
    --mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #17181b;
        --panel: #1d1f23;
        --border: #2d3036;
        --text: #e4e3df;
        --dim: #9a9890;
        --accent: #6e9bf5;
        --code-bg: #222429;
        --error: #f0776c;
        --ok: #6fcf97;
        --t-keyword: #c792ea;
        --t-string: #a5d6a7;
        --t-number: #f7a46b;
        --t-comment: #6f7480;
        --t-type: #82b1ff;
        --t-attr: #f48fb1;
    }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 15px/1.6 var(--sans); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
    position: sticky; top: 0; z-index: 10;
    display: flex; align-items: center; gap: 16px;
    padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 650; color: var(--text); }
.menu {
    display: none; flex-direction: column; justify-content: center; align-items: center; gap: 4px;
    width: 32px; height: 32px; margin: 0 -6px 0 -6px; padding: 0;
    background: none; border: 0; border-radius: 6px; cursor: pointer;
}
.menu:hover { background: var(--bg); }
.menu span { display: block; width: 18px; height: 2px; border-radius: 1px; background: var(--text); }
.search { position: relative; flex: 1; max-width: 420px; }
.search input {
    width: 100%; padding: 6px 10px; font: inherit; color: inherit;
    background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
}
#results {
    position: absolute; top: 38px; left: 0; right: 0; margin: 0; padding: 4px 0; list-style: none;
    background: var(--panel); border: 1px solid var(--border); border-radius: 6px;
    max-height: 60vh; overflow: auto; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
#results li a { display: block; padding: 4px 12px; color: var(--text); }
#results li.active a, #results li a:hover { background: var(--bg); text-decoration: none; }
#results .summary { display: block; color: var(--dim); font-size: 13px; }
.play { margin-left: auto; }

.shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); }
.side {
    position: sticky; top: 49px; height: calc(100vh - 49px); overflow: auto;
    padding: 12px 8px 24px; border-right: 1px solid var(--border); font-size: 14px;
}
.side ul { list-style: none; margin: 0; padding-left: 12px; }
.side > ul { padding-left: 0; }
.side li { margin: 1px 0; }
.side a { color: var(--text); display: inline-block; padding: 1px 4px; border-radius: 4px; }
.side a.current { background: var(--code-bg); color: var(--accent); font-weight: 600; }
.side summary { cursor: pointer; }
.side .group { margin: 12px 4px 4px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--dim); }

.doc { padding: 24px 40px 64px; max-width: 900px; }
.doc h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 16px; }
.doc h2 { font-size: 22px; margin-top: 32px; }
.doc h3 { font-size: 18px; }
.crumbs { font-size: 13px; color: var(--dim); }
.crumbs span { margin: 0 4px; }
.lead { color: var(--dim); font-size: 17px; }
.kind {
    margin-left: 8px; padding: 1px 6px; font-size: 11px; font-weight: 500; vertical-align: middle;
    color: var(--dim); border: 1px solid var(--border); border-radius: 4px; text-transform: lowercase;
}
.member { border-top: 1px solid var(--border); margin-top: 20px; }
.member > h2, .member > h3, .member > h4 { margin-top: 16px; font-family: var(--mono); font-size: 16px; }
.anchor { color: var(--text); }
.label { margin-bottom: 4px; font-size: 12px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.04em; }
.where { font: 12px var(--mono); color: var(--dim); }

code { font: 0.9em var(--mono); background: var(--code-bg); padding: 1px 4px; border-radius: 4px; }
pre { margin: 12px 0; }
pre code { display: block; padding: 12px 14px; overflow: auto; background: var(--code-bg); border-radius: 6px; line-height: 1.5; tab-size: 4; }
pre.sig code { border-left: 3px solid var(--accent); }

table { border-collapse: collapse; margin: 12px 0; font-size: 14px; }
th, td { border: 1px solid var(--border); padding: 4px 10px; text-align: left; vertical-align: top; }
th { background: var(--panel); }

.contents { list-style: none; padding: 0; }
.contents li { padding: 6px 0; border-bottom: 1px solid var(--border); }
.contents .summary { display: block; color: var(--dim); font-size: 14px; }

.snippet pre { margin-bottom: 0; }
.snippet pre code { border-radius: 6px 6px 0 0; }
.snippet-bar {
    display: flex; align-items: center; gap: 12px; padding: 6px 10px;
    background: var(--panel); border: 1px solid var(--border); border-top: 0; border-radius: 0 0 6px 6px; font-size: 13px;
}
.snippet-bar .run {
    font: inherit; color: #fff; background: var(--accent); border: 0; border-radius: 4px; padding: 2px 12px; cursor: pointer;
}
.snippet-bar .run:disabled { opacity: 0.6; cursor: default; }
.output { margin: 6px 0 0; padding: 8px 12px; list-style: none; font: 13px/1.5 var(--mono); background: var(--code-bg); border-radius: 6px; }
.output .fault, .output .error { color: var(--error); }
.output .done { color: var(--ok); }

.t-keyword { color: var(--t-keyword); }
.t-string { color: var(--t-string); }
.t-number { color: var(--t-number); }
.t-comment { color: var(--t-comment); font-style: italic; }
.t-type { color: var(--t-type); }
.t-attr { color: var(--t-attr); }

@media (max-width: 820px) {
    .menu { display: flex; }
    .shell { grid-template-columns: 1fr; }
    .side { display: none; position: fixed; top: 49px; left: 0; right: 0; z-index: 5; background: var(--bg); }
    body.nav-open .side { display: block; }
    .doc { padding: 16px; }
    .play { display: none; }
}