/* Fully Open Humanoid — site styles */
:root {
  --bg: #ffffff;
  --bg2: #f5f6f8;
  --bg3: #eceef2;
  --fg: #1b1e23;
  --fg2: #5b626b;
  --fg3: #8a919a;
  --line: #e2e5ea;
  --accent: #e0561c;
  --accent-fg: #ffffff;
  --accent-soft: #fdeee6;
  --link: #b8430f;
  --ok: #1f8a4c;
  --ok-soft: #e6f5ec;
  --warn: #b7791f;
  --warn-soft: #fdf5e4;
  --bad: #c92a2a;
  --bad-soft: #fceaea;
  --info: #2f6fb5;
  --info-soft: #e9f1fb;
  --viewer-bg: #f3f4f6;
  --grid: #b9bec6;
  --shadow: 0 1px 2px rgba(20, 24, 30, .06), 0 8px 24px rgba(20, 24, 30, .06);
  --radius: 10px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --nav-h: 56px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216; --bg2: #171b21; --bg3: #1f242c; --fg: #e7eaee; --fg2: #a1a9b3; --fg3: #737c87;
    --line: #2a303a; --accent: #ff7d42; --accent-fg: #14100d; --accent-soft: #33221a; --link: #ff9a6b;
    --ok: #4cc47e; --ok-soft: #14291d; --warn: #e0a84a; --warn-soft: #2d2412; --bad: #ff6b6b; --bad-soft: #341a1a;
    --info: #6aa7ea; --info-soft: #14243a; --viewer-bg: #12161c; --grid: #3a414c;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1216; --bg2: #171b21; --bg3: #1f242c; --fg: #e7eaee; --fg2: #a1a9b3; --fg3: #737c87;
  --line: #2a303a; --accent: #ff7d42; --accent-fg: #14100d; --accent-soft: #33221a; --link: #ff9a6b;
  --ok: #4cc47e; --ok-soft: #14291d; --warn: #e0a84a; --warn-soft: #2d2412; --bad: #ff6b6b; --bad-soft: #341a1a;
  --info: #6aa7ea; --info-soft: #14243a; --viewer-bg: #12161c; --grid: #3a414c;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  margin: 0; background: var(--bg); color: var(--fg); font-family: var(--font);
  font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; font-weight: 650; letter-spacing: -.01em; }
h1 { font-size: 2.1rem; margin-top: .2em; }
h2 { font-size: 1.5rem; margin-top: 2.2em; padding-bottom: .3em; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.15rem; margin-top: 1.8em; }
h4 { font-size: 1rem; margin-top: 1.4em; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.4em; margin: 0 0 1em; }
li { margin: .25em 0; }
code, kbd, .mono { font-family: var(--mono); font-size: .88em; }
code { background: var(--bg3); padding: .1em .35em; border-radius: 4px; }
pre { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; overflow: auto; font-size: .86rem; line-height: 1.5; }
pre code { background: none; padding: 0; font-size: inherit; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
img, svg, video { max-width: 100%; }
figure { margin: 1.5em 0; }
figcaption { color: var(--fg2); font-size: .9rem; margin-top: .5em; }
small, .muted { color: var(--fg2); }
.tiny { font-size: .82rem; color: var(--fg3); }
.lead { font-size: 1.18rem; color: var(--fg2); max-width: 46em; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .inner { max-width: 1200px; margin: 0 auto; height: 100%; display: flex; align-items: center; gap: 12px; padding: 0 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 700; letter-spacing: -.01em; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 26px; height: 26px; }
.brand .ver { font-size: .72rem; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 2px 7px; border-radius: 999px; }
.nav { display: flex; gap: 2px; margin-left: auto; align-items: center; }
.nav a { color: var(--fg2); padding: 6px 8px; border-radius: 6px; font-size: .88rem; font-weight: 500; white-space: nowrap; }
.nav a:hover { color: var(--fg); background: var(--bg2); text-decoration: none; }
.nav a.active { color: var(--fg); background: var(--bg3); }
.nav .gh { display: inline-flex; align-items: center; gap: 6px; }
.iconbtn { border: 1px solid var(--line); background: var(--bg); color: var(--fg2); width: 34px; height: 34px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.iconbtn:hover { color: var(--fg); background: var(--bg2); }
.nav-toggle { display: none; }
@media (max-width: 1000px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .nav { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; padding: 8px 12px 12px; gap: 2px; box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav a { padding: 10px 12px; }
  .brand .name { display: none; }
}
@media (max-width: 480px) { .brand .ver { display: none; } }

/* Layout */
.page { max-width: 980px; margin: 0 auto; padding: 36px 20px 80px; }
.page.wide { max-width: 1200px; }
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 32px; align-items: center; margin: 12px 0 28px; }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; } }
.hero h1 { font-size: 2.6rem; }
.hero .lead { margin-bottom: 1.4em; }
.hero-viewer { position: relative; height: 480px; border-radius: 14px; background: var(--viewer-bg); border: 1px solid var(--line); overflow: hidden; }
.hero-viewer canvas { display: block; }
.hero-viewer .hint { position: absolute; left: 12px; bottom: 10px; font-size: .78rem; color: var(--fg3); pointer-events: none; }
.hero-viewer .open { position: absolute; right: 12px; bottom: 10px; }
@media (max-width: 600px) { .hero-viewer { height: 340px; } .hero h1 { font-size: 2.1rem; } }
.btns { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); font-weight: 550; font-size: .93rem; cursor: pointer; line-height: 1.2; }
.btn:hover { background: var(--bg2); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.small { padding: 5px 10px; font-size: .82rem; }
.btn:disabled { opacity: .5; cursor: default; }

/* Status banner */
.banner { display: flex; gap: 12px; align-items: flex-start; padding: 12px 16px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg2); margin: 0 0 24px; font-size: .93rem; }
.banner .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); margin-top: 6px; flex: none; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 1em 0 1.5em; }
.card { display: block; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; background: var(--bg); color: var(--fg); }
a.card:hover { text-decoration: none; border-color: var(--fg3); box-shadow: var(--shadow); }
.card h3 { margin: 0 0 .35em; font-size: 1.02rem; }
.card p { margin: 0; color: var(--fg2); font-size: .92rem; }
.card .num { display: inline-block; font-size: .75rem; font-weight: 700; color: var(--accent); background: var(--accent-soft); padding: 2px 8px; border-radius: 999px; margin-bottom: 8px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 1em 0 1.5em; }
.stat { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; background: var(--bg2); }
.stat .v { font-size: 1.5rem; font-weight: 700; letter-spacing: -.02em; }
.stat .k { font-size: .82rem; color: var(--fg2); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 1em 0 1.5em; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--fg2); font-weight: 600; background: var(--bg2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.total td { font-weight: 700; border-top: 2px solid var(--fg3); }
td .sub { display: block; color: var(--fg3); font-size: .8rem; margin-top: 2px; }
table.compact th, table.compact td { padding: 5px 8px; font-size: .88rem; }

/* Callouts */
.callout { border-left: 4px solid var(--info); background: var(--info-soft); padding: 10px 14px; border-radius: 0 8px 8px 0; margin: 1em 0; font-size: .95rem; }
.callout > :last-child { margin-bottom: 0; }
.callout.check { border-color: var(--ok); background: var(--ok-soft); }
.callout.warn { border-color: var(--warn); background: var(--warn-soft); }
.callout.gap { border-color: var(--bad); background: var(--bad-soft); }
.callout.plain { border-color: var(--fg3); background: var(--bg2); }
.callout .t { font-weight: 700; margin-right: 6px; }
.pill { display: inline-block; font-size: .74rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--bg3); color: var(--fg2); vertical-align: middle; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.acc { background: var(--accent-soft); color: var(--accent); }

/* Steps */
.step { display: flex; gap: 14px; margin: 1.4em 0 .6em; align-items: baseline; }
.step .n { flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--fg); color: var(--bg); font-weight: 700; display: inline-flex; align-items: center; justify-content: center; font-size: .9rem; position: relative; top: 6px; }
.step h3 { margin: 0; }
.glance { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; background: var(--bg2); margin: 1em 0 1.5em; }
.glance b { display: block; margin-bottom: 4px; }
.glance ul { margin: 0; }

/* TOC */
.toc { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; margin: 1.2em 0 1.8em; background: var(--bg2); font-size: .92rem; }
.toc b { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--fg2); margin-bottom: 6px; }
.toc ol { margin: 0; padding-left: 1.3em; columns: 2; column-gap: 24px; }
@media (max-width: 600px) { .toc ol { columns: 1; } }
.toc li { break-inside: avoid; }

/* Two-column feature */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }

/* Diagrams */
.diagram { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg2); padding: 12px; margin: 1em 0; }
.diagram svg { width: 100%; height: auto; display: block; }
.diagram text { font-family: var(--font); fill: var(--fg); }
.diagram .lbl { font-size: 12px; }
.diagram .sm { font-size: 10.5px; fill: var(--fg2); }
.diagram .box { fill: var(--bg); stroke: var(--fg3); stroke-width: 1.2; }
.diagram .wire-p { stroke: #d1302e; stroke-width: 2.4; fill: none; }
.diagram .wire-n { stroke: var(--fg); stroke-width: 2.4; fill: none; }
.diagram .wire-can { stroke: #2f6fb5; stroke-width: 1.8; fill: none; }
.diagram .wire-usb { stroke: #7a5cc4; stroke-width: 1.8; fill: none; stroke-dasharray: 4 3; }
.diagram .wire-12 { stroke: #d99a1e; stroke-width: 1.8; fill: none; }
.diagram .act { fill: var(--bg3); stroke: var(--fg3); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 28px 20px; color: var(--fg2); font-size: .86rem; }
.site-footer .inner { max-width: 980px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 8px 28px; justify-content: space-between; }

/* ---------------- Viewer page ---------------- */
.viewer-app { display: grid; grid-template-columns: 300px 1fr 320px; height: calc(100vh - var(--nav-h)); min-height: 560px; }
.vpanel { background: var(--bg); border-right: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; }
.vpanel.right { border-right: 0; border-left: 1px solid var(--line); }
.vpanel h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--fg2); margin: 0; padding: 10px 14px; border-bottom: 1px solid var(--line); border-top: 0; display: flex; align-items: center; justify-content: space-between; }
.vpanel .scroll { overflow: auto; flex: 1 1 auto; min-height: 0; }
.vsearch { padding: 8px 10px; border-bottom: 1px solid var(--line); }
.vsearch input { width: 100%; padding: 7px 10px; border: 1px solid var(--line); border-radius: 7px; background: var(--bg2); color: var(--fg); font: inherit; font-size: .88rem; }
.tree { font-size: .86rem; padding: 6px 0 20px; }
.tree details { margin: 0; }
.tree summary { list-style: none; cursor: pointer; padding: 4px 10px; display: flex; align-items: center; gap: 6px; color: var(--fg); font-weight: 600; user-select: none; }
.tree summary::-webkit-details-marker { display: none; }
.tree summary .car { width: 12px; color: var(--fg3); transition: transform .12s; display: inline-block; text-align: center; }
.tree details[open] > summary .car { transform: rotate(90deg); }
.tree details.link > summary { font-weight: 500; padding-left: 22px; }
.tree .row { display: flex; align-items: center; gap: 6px; padding: 3px 10px 3px 40px; cursor: pointer; color: var(--fg2); border-radius: 0; }
.tree .row:hover { background: var(--bg2); color: var(--fg); }
.tree .row.sel { background: var(--accent-soft); color: var(--fg); }
.tree .row.hid { opacity: .45; }
.tree .row .sw { width: 9px; height: 9px; border-radius: 2px; flex: none; border: 1px solid rgba(0,0,0,.15); }
.tree .row .nm { flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree .row .eye, .tree summary .eye { flex: none; opacity: 0; color: var(--fg3); font-size: .8rem; padding: 0 2px; }
.tree .row:hover .eye, .tree summary:hover .eye, .tree .row.hid .eye { opacity: 1; }
.tree .cnt { color: var(--fg3); font-weight: 400; font-size: .78rem; margin-left: auto; }
.vstage { position: relative; background: var(--viewer-bg); min-width: 0; }
.vstage canvas { display: block; }
.vtoolbar { position: absolute; top: 10px; left: 10px; right: 10px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; pointer-events: none; }
.vtoolbar > * { pointer-events: auto; }
.vtoolbar .grp { display: inline-flex; background: color-mix(in srgb, var(--bg) 90%, transparent); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; backdrop-filter: blur(6px); }
.vtoolbar .grp button { border: 0; background: transparent; color: var(--fg2); padding: 6px 10px; font: inherit; font-size: .8rem; font-weight: 600; cursor: pointer; border-right: 1px solid var(--line); }
.vtoolbar .grp button:last-child { border-right: 0; }
.vtoolbar .grp button:hover { background: var(--bg2); color: var(--fg); }
.vtoolbar .grp button.on { background: var(--accent-soft); color: var(--accent); }
.vtoolbar label.grp { padding: 4px 10px; gap: 8px; align-items: center; font-size: .8rem; color: var(--fg2); }
.vtoolbar input[type=range] { width: 110px; accent-color: var(--accent); }
.vhint { position: absolute; left: 12px; bottom: 10px; font-size: .76rem; color: var(--fg3); pointer-events: none; }
.vaxes { position: absolute; right: 12px; bottom: 10px; width: 64px; height: 64px; pointer-events: none; }
.vload { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: var(--fg2); font-size: .9rem; }
.vtabs { display: flex; border-bottom: 1px solid var(--line); }
.vtabs button { flex: 1; border: 0; background: transparent; color: var(--fg2); padding: 9px 6px; font: inherit; font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; cursor: pointer; border-bottom: 2px solid transparent; }
.vtabs button.on { color: var(--accent); border-bottom-color: var(--accent); }
.vtab { display: none; padding: 12px 14px 24px; font-size: .88rem; }
.vtab.on { display: block; }
.props .name { font-size: 1.05rem; font-weight: 700; margin: 0 0 2px; }
.props .id { font-family: var(--mono); font-size: .78rem; color: var(--fg3); margin-bottom: 10px; word-break: break-all; }
.props dl { display: grid; grid-template-columns: 96px 1fr; gap: 4px 10px; margin: 0 0 12px; }
.props dt { color: var(--fg3); font-size: .8rem; }
.props dd { margin: 0; }
.props .actions { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 14px; }
.props .empty { color: var(--fg3); }
.props .swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 6px; border: 1px solid rgba(0,0,0,.15); }
.props .note { color: var(--fg2); font-size: .85rem; border-top: 1px solid var(--line); padding-top: 8px; }
.jgroup { margin-bottom: 14px; }
.jgroup h4 { margin: 0 0 6px; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--fg2); }
.jrow { display: grid; grid-template-columns: 1fr 44px; gap: 6px; align-items: center; margin: 2px 0; }
.jrow label { font-size: .82rem; color: var(--fg); display: flex; justify-content: space-between; }
.jrow label span { color: var(--fg3); font-family: var(--mono); font-size: .75rem; }
.jrow input[type=range] { width: 100%; accent-color: var(--accent); margin: 0; }
.jrow .v { font-family: var(--mono); font-size: .78rem; color: var(--fg2); text-align: right; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.opt { display: flex; align-items: center; gap: 8px; padding: 5px 0; font-size: .86rem; }
.opt input { accent-color: var(--accent); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: .8rem; color: var(--fg2); margin-top: 10px; }
.legend i { display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; border: 1px solid rgba(0,0,0,.15); }
.vmobile-tabs { display: none; }
@media (max-width: 1000px) {
  .viewer-app { grid-template-columns: 1fr; grid-template-rows: auto 1fr auto; height: auto; min-height: 0; }
  .vstage { height: 62vh; min-height: 380px; }
  .vpanel { border: 0; border-top: 1px solid var(--line); max-height: 44vh; }
  .vpanel.right { border-left: 0; }
  .vpanel.left { order: 3; }
  .vstage { order: 1; }
  .vpanel.right { order: 2; }
}