:root{
  --bg:#f3f4f6;--card:#ffffff;--ink:#16202c;--muted:#566272;--faint:#8792a0;
  --line:#e1e5ea;--line2:#c8ced6;
  --brand:#1d4e75;--brand-d:#143a58;
  --pulse:#c8333a;--good:#2e7d4f;--warn:#b7791f;--bad:#b83232;
  --mono:ui-monospace,"SF Mono","Cascadia Mono",Consolas,monospace;
}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0;background:var(--bg);color:var(--ink);font:13px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* header */
header{background:var(--card);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:46px}
.brand{display:flex;align-items:center;gap:10px}
.mark{width:24px;height:24px;border-radius:4px;background:var(--brand);display:grid;place-items:center}
.mark svg{width:15px;height:15px;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.brand b{font-size:14px;font-weight:650;letter-spacing:-.01em}
.brand small{color:var(--faint);font-size:12px;padding-left:10px;border-left:1px solid var(--line2)}
.actions{display:flex;gap:8px;align-items:center}

button,select,input[type=number]{font:inherit;font-size:12px;color:var(--ink);background:var(--card);border:1px solid var(--line2);border-radius:3px;padding:4px 12px;cursor:pointer;transition:border-color .12s,background .12s}
button:hover,select:hover{border-color:var(--muted)}
button:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:1px}
button.primary{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
button.primary:hover{background:var(--brand-d);border-color:var(--brand-d)}
button:disabled{opacity:.55;cursor:default}
select{appearance:none;padding:3px 24px 3px 8px;background:var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none' stroke='%23566272' stroke-width='1.6'%3E%3Cpath d='M1 1l4 4 4-4'/%3E%3C/svg%3E") no-repeat right 8px center}

main{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,1fr);gap:16px;padding:16px 0 0;align-items:start}
@media (max-width:900px){main{grid-template-columns:1fr}.wrap{padding:0 12px}}
.card{background:var(--card);border:1px solid var(--line);border-radius:4px}
h2{margin:0;font-size:10px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--faint)}

/* video */
.videoWrap{position:relative;aspect-ratio:4/3;background:#0b0f14;overflow:hidden;border-radius:3px 3px 0 0}
#view{width:100%;height:100%;display:block;object-fit:contain}
#status{position:absolute;left:10px;bottom:10px;display:flex;align-items:center;gap:7px;background:rgba(11,15,20,.82);padding:4px 9px;border-radius:3px;font-size:11px;color:#fff;max-width:calc(100% - 20px)}
#status::before{content:"";width:6px;height:6px;border-radius:50%;background:#7b8798;flex:none}
#status.live::before{background:#4cc38a}
#status.warn::before{background:#f0b429}
#motion{position:absolute;right:10px;top:10px;background:#f0b429;color:#2b1d00;padding:2px 9px;border-radius:3px;font-size:11px;font-weight:650;display:none}
#intro{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px;background:#10161d}
#intro h3{margin:0;color:#e8edf2;font-size:13px;font-weight:600;letter-spacing:.02em}
#intro ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;text-align:left}
#intro li{display:flex;gap:10px;align-items:baseline;color:#9aa7b5;font-size:12px}
#intro li i{font:11px var(--mono);font-style:normal;color:#6f8ba5;flex:none}
#intro button{padding:6px 20px}
.opts{display:flex;gap:6px 16px;align-items:center;padding:8px 12px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;flex-wrap:wrap}
.opts label{display:flex;gap:6px;align-items:center;cursor:pointer}
.opts .sp{flex:1}
#lockState,#nnState{font-size:11px;color:var(--faint)}
#camSel{max-width:200px;text-overflow:ellipsis}
input[type=checkbox]{appearance:none;width:13px;height:13px;border:1px solid var(--line2);border-radius:2px;margin:0;cursor:pointer;display:grid;place-content:center;background:#fff}
input[type=checkbox]:checked{background:var(--brand);border-color:var(--brand)}
input[type=checkbox]:checked::after{content:"";width:6px;height:3px;border:solid #fff;border-width:0 0 2px 2px;transform:rotate(-45deg) translate(1px,-1px)}

/* vitals panel */
.sec{padding:12px 16px}
.sec+.sec{border-top:1px solid var(--line)}
.sech{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}
.sech span{font-size:11px;color:var(--faint)}
.hrline{display:flex;align-items:center;gap:10px}
.heart{width:18px;height:18px;fill:var(--pulse);display:inline-block;will-change:transform}
.bpm{font-size:56px;font-weight:300;letter-spacing:-.04em;font-variant-numeric:tabular-nums;line-height:1}
.bpm.stale{color:var(--faint)}
.unit{color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;align-self:flex-end;padding-bottom:8px}
.qwrap{margin-left:auto;display:flex;flex-direction:column;align-items:flex-end;gap:2px}
.qwrap .mono{font-family:var(--mono);font-size:10px;color:var(--faint)}
.badge{font-size:10px;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.badge.good{color:var(--good)}
.badge.fair{color:var(--warn)}
.badge.poor{color:var(--bad)}
.bar{height:3px;background:#e8ebef;border-radius:1px;overflow:hidden;margin-top:10px}
.bar>i{display:block;height:100%;width:0;background:var(--good);transition:width .3s,background .3s}
.metrics{display:grid;grid-template-columns:repeat(3,1fr)}
.metric+.metric{padding-left:14px;border-left:1px solid var(--line)}
.metric small{display:block;color:var(--faint);font-size:10px;font-weight:650;letter-spacing:.08em;text-transform:uppercase}
.metric b{display:inline;font-size:22px;font-weight:400;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.metric em{font-style:normal;color:var(--faint);font-size:11px;margin-left:4px}
.hint{margin:0;color:var(--faint);font-size:11px}
.val{display:grid;grid-template-columns:96px 1fr 1fr;gap:12px;align-items:end}
.val label{display:block;color:var(--faint);font-size:10px;font-weight:650;letter-spacing:.08em;text-transform:uppercase;margin-bottom:3px}
.val input{width:100%;cursor:text;padding:4px 8px}
.val output{display:block;font-size:15px;font-variant-numeric:tabular-nums;line-height:26px}

/* plots */
.plots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:16px}
.pb{padding:10px 14px 8px;min-width:0}
.pb+.pb{border-left:1px solid var(--line)}
@media (max-width:900px){.plots{grid-template-columns:1fr}.pb+.pb{border-left:0;border-top:1px solid var(--line)}}
canvas.plot{width:100%;height:96px;display:block}
#video{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
footer .wrap{padding-top:12px;padding-bottom:18px;color:var(--faint);font-size:11px;line-height:1.55}
footer b{color:var(--muted);font-weight:600}
footer code{font:11px var(--mono)}