:root{color-scheme:dark;--ink:#f8f9fa;--muted:#b2b6aa;--line:#373e2e;--paper:#12130c;--surface:#1b1e16;--input:#11140d;--control-line:#58614c;--brand:#388f09;--accent:#8ac65d;--primary:#2f7808;--primary-hover:#348309;--dark:#10140d;--radius:14px;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);line-height:1.5}
button,input,select{font:inherit}
button,a,input,select,summary{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
a{color:inherit;text-underline-offset:4px}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
[hidden]{display:none!important}
.skip{position:absolute;top:-100px;left:16px;z-index:9;background:var(--surface);padding:12px}
.skip:focus{top:12px}
.topbar{height:88px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1160px)/2));gap:20px;background:#000}
.brand{display:flex;gap:10px;align-items:center;font-weight:750;font-size:20px;text-decoration:none;white-space:nowrap}
.brand-logo{display:block;width:176px;height:auto;flex:none}
.brand-sub{margin-left:4px}
.brand-sub{font-weight:400;color:var(--muted)}
nav{display:flex;align-items:center;gap:32px;font-size:14px}
nav a{text-decoration:none}
.open-label{font-size:12px;letter-spacing:.12em;color:var(--muted)}
main{max-width:1160px;margin:0 auto;padding:40px 0 28px}
.intro{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:28px;gap:18px}
.eyebrow{font-size:12px;letter-spacing:.12em;font-weight:650;margin:0 0 10px;color:var(--muted)}
h1{font-size:34px;line-height:1.2;letter-spacing:-1.2px;margin:0 0 10px;font-weight:650}
.intro p:last-child{margin:0;color:var(--muted)}
.test-label{font-size:12px;background:#22291b;border:1px solid var(--line);border-radius:6px;padding:6px 10px;white-space:nowrap}
.workspace{display:grid;grid-template-columns:minmax(300px, .83fr) minmax(0, 1.17fr);gap:24px;align-items:start}
.setup{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:26px 28px}
.section-title{display:flex;align-items:center;gap:12px;margin-bottom:25px}
.step{font-size:12px;font-family:ui-monospace,monospace;color:var(--muted);border:1px solid var(--line);border-radius:50%;width:29px;height:29px;display:inline-flex;align-items:center;justify-content:center;flex:none}
h2{font-size:17px;font-weight:650;margin:0}
label{display:block;font-size:14px;font-weight:650;margin:20px 0 8px}
form>label:first-child{margin-top:0}
input,select{width:100%;min-height:46px;color:var(--ink);background:var(--input);border:1px solid var(--control-line);border-radius:7px;padding:10px 12px;min-width:0}
input[type=number]{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;text-align:center}
select{padding-right:28px}
.hint{font-size:14px;line-height:1.5;color:var(--muted);margin:8px 0 0}
.unit{float:right;color:var(--muted);font-weight:400}
.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.offset-row{display:flex;gap:8px}
.offset-row button{flex-shrink:0;min-width:49px;border:1px solid var(--control-line);background:var(--paper);color:var(--ink);border-radius:7px}
.secondary,.primary{min-height:46px;border-radius:8px;padding:11px 18px;font-weight:650}
.secondary{background:transparent;color:inherit;border:1px solid var(--control-line)}
.apply{width:100%;margin-top:18px}
.form-status{font-size:14px;color:var(--muted);margin:10px 0 0;min-height:21px}
.form-status.error{color:#ffa99d}
.rate-note{margin-top:22px;padding:14px 16px;background:#202d16;border-radius:7px;font-size:14px;color:#cedec0}
.jam-panel{border:1px solid var(--line);background:var(--dark);color:#f7faf9;padding:26px 32px 20px;border-radius:var(--radius)}
.jam-panel .step{border-color:#45503a;color:#c0c9b7}
.jam-panel .section-title{margin-bottom:16px}
.signal{font-size:12px;letter-spacing:.07em;color:#adb8a2;margin-left:auto;white-space:nowrap}
.signal.live{color:var(--accent)}
.signal.live:before{content:"";display:inline-block;background:var(--accent);border-radius:50%;width:7px;height:7px;margin-right:8px}
.tc-display{text-align:center}
.tc-display .eyebrow{color:#aeb9a3;font-size:11px;letter-spacing:.1em;margin:0 0 2px}
.tc-display .eyebrow span{color:var(--accent);margin-left:10px}
#timecode{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:clamp(34px,4.5vw,57px);font-weight:500;letter-spacing:-2px;line-height:1.4;font-variant-numeric:tabular-nums}
#clock-detail{font:12px ui-monospace,SFMono-Regular,Consolas,monospace;color:#aeb9a3;margin:0 0 20px}
.qr-stage{width:min(100%,330px);aspect-ratio:1;background:#fff;margin:0 auto;display:grid;place-items:center;border-radius:8px;overflow:hidden}
canvas{width:100%;height:100%;display:block;image-rendering:pixelated}
#qr-placeholder{color:#172124;text-align:center;padding:26px;display:flex;flex-direction:column;align-items:center}
#qr-placeholder strong{font-size:17px;font-weight:650}
#qr-placeholder p{font-size:14px;color:#566268;max-width:230px;margin:8px 0}
.viewfinder{height:68px;width:68px;display:grid;place-items:center;border:1px dashed #9eabad;border-radius:12px;color:#96a49d;font-size:36px;font-weight:300;margin-bottom:26px}
#scan-status{text-align:center;font-size:14px;margin:16px 0;color:#c9d1c1;min-height:21px}
.jam-actions{display:flex;gap:10px;max-width:400px;margin:auto}
.primary{background:var(--primary);color:#fff;border:1px solid var(--brand);flex:1;display:flex;align-items:center;justify-content:space-between;gap:24px}
.primary:hover{background:var(--primary-hover)}
.jam-actions .secondary{border-color:#657454}
.scan-meta{display:flex;justify-content:space-between;font-size:12px;color:#a4b395;margin:16px 0 0;gap:10px}
.payload{border-top:1px solid #35452b;margin-top:17px;padding-top:13px;font-size:12px;color:#acb99f}
.payload summary{cursor:pointer;min-height:25px}
.payload code{display:block;overflow-wrap:anywhere;color:#d7e1cf;font-size:12px;margin-top:12px}
.payload p{margin-bottom:0}
.field-notes{display:grid;grid-template-columns:.7fr 1fr 1fr;gap:24px;margin-top:28px;padding:24px 0;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.field-notes>div{display:flex;align-items:flex-start;gap:12px}
.field-notes h2{font-size:16px;padding-top:3px;color:var(--ink)}
.field-notes p{margin:0}
.field-notes strong{color:var(--ink)}
.field-notes a{white-space:nowrap}
footer{max-width:1160px;margin:0 auto;padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}
.noscript{background:#382e19;color:#f9e4ac;padding:20px;text-align:center;position:fixed;bottom:0;width:100%}
.jam-panel:fullscreen,.jam-panel.expanded{width:100%;height:100%;overflow:auto;padding:24px max(24px,calc((100vw - 640px)/2));border-radius:0}
.jam-panel.expanded{position:fixed;inset:0;z-index:5}
.jam-panel:fullscreen .qr-stage,.jam-panel.expanded .qr-stage{width:min(55vh,100%)}
.jam-panel:fullscreen .payload,.jam-panel.expanded .payload{display:none}
.guide{max-width:850px}
.guide h1{margin-bottom:18px}
.guide h2{font-size:24px;letter-spacing:-.5px;margin-top:38px;margin-bottom:14px}
.guide h3{font-size:18px;margin-top:26px}
.guide p,.guide li{line-height:1.7}
.guide li{margin-bottom:10px}
.guide table{border-collapse:collapse;width:100%;font-size:14px;display:block;overflow-x:auto}
.guide th,.guide td{border-bottom:1px solid var(--line);text-align:left;padding:12px 16px 12px 0}
.guide code{overflow-wrap:anywhere}
.guide .callout{background:#202d16;border-left:3px solid var(--accent);padding:16px 20px}
.guide .toc{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;border-block:1px solid var(--line);padding:16px 0;margin:25px 0}
button:disabled{opacity:.5;cursor:not-allowed}
@media(min-width:1500px){.qr-stage{width:355px}
}
@media(max-width:1220px){main{margin:0 28px}
footer{margin:0 28px}
}
@media(max-width:760px){.topbar{height:72px;padding:0 20px}
.brand{font-size:17px;gap:7px}
.brand-logo{width:152px}
.brand-sub{display:none}
.open-label{display:none}
nav{gap:12px}
.intro{display:block;margin-bottom:24px}
h1{font-size:29px}
.test-label{display:inline-block;margin-top:15px}
main{margin:0 18px;padding-top:28px}
.workspace{grid-template-columns:1fr;gap:20px}
.setup{padding:23px}
.jam-panel{padding:24px}
.qr-stage{width:min(100%,355px)}
#timecode{font-size:clamp(32px,8.4vw,55px)}
.field-notes{grid-template-columns:1fr;gap:16px}
footer{margin:0 18px;flex-direction:column;gap:8px}
.guide{margin:0 22px}
.field-pair{grid-template-columns:1fr}
}
@media(max-width:380px){.topbar{gap:12px}.brand-logo{width:128px}}
@media print{#qr-stage{visibility:hidden}
.topbar,footer,.jam-actions{display:none}
}