:root{color-scheme:light dark;--bg:light-dark(#f3f4ef,#112329);--panel:light-dark(#fffef9,#1a3037);--ink:light-dark(#203c40,#e7f3ed);--sub:light-dark(#586f71,#aabfbe);--line:light-dark(#d9e1d9,#365058);--mint:#a9e4ca;--green:light-dark(#28735b,#92d8b7);--track:light-dark(#e6ebe4,#263d43);--warn:light-dark(#855020,#f1c08b);font:15px/1.6 system-ui,'Yu Gothic UI',sans-serif;background:var(--bg);color:var(--ink)}
*{box-sizing:border-box}body{margin:0;padding:max(20px,env(safe-area-inset-top)) 20px max(25px,env(safe-area-inset-bottom))}main{max-width:920px;margin:auto}button,input,textarea{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--green);outline-offset:3px}button{border:0}a{color:inherit}header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0 30px}.brand{display:flex;gap:12px;text-decoration:none;align-items:center;font-size:13px;letter-spacing:.12em;font-weight:650}.brand small{display:block;font-size:10px;color:var(--sub);letter-spacing:.18em;font-weight:400}.logo{background:var(--ink);color:var(--bg);height:38px;width:38px;border-radius:12px;display:grid;place-items:center;font-size:22px;letter-spacing:0}.local{font-size:11px;color:var(--sub);border:1px solid var(--line);padding:5px 10px;border-radius:20px}.eyebrow{font-size:10px;letter-spacing:.18em;color:var(--sub)}h1{font-size:clamp(24px,5vw,37px);letter-spacing:-.035em;line-height:1.45;font-weight:600;margin:10px 0}h2{font-size:17px;font-weight:550;margin:0}.intro{margin-bottom:30px}.intro p{font-size:13px;color:var(--sub);margin:8px 0}.recorder,.review{background:var(--panel);padding:25px;border-radius:24px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-head>span{font-size:11px;color:var(--sub)}.trip-metrics{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:23px 0 6px}.trip-metrics span{display:block;font-size:11px;color:var(--sub)}.trip-metrics strong{display:block;font-size:38px;line-height:1.4;font-weight:450;font-variant-numeric:tabular-nums;letter-spacing:-.03em}.trip-metrics small{font-size:13px;color:var(--sub);margin-left:6px}.car-stage{height:170px;position:relative;overflow:hidden;border-radius:17px;margin:12px 0;background:var(--bg)}.road{position:absolute;width:150px;height:220px;background:var(--track);left:calc(50% - 75px);top:-20px;border-left:1px solid var(--line);border-right:1px solid var(--line)}.road:after{content:'';position:absolute;left:50%;height:100%;border-left:2px dashed var(--line)}.car{position:absolute;left:calc(50% - 23px);top:22px;width:46px;height:89px;transform:translateY(var(--bounce,0px))}.body{position:absolute;inset:0;border:2px solid #367b66;background:var(--mint);border-radius:16px 16px 13px 13px;box-shadow:4px 7px 8px #0002}.wheels{position:absolute;inset:15px -4px;background:var(--ink);border-radius:3px}.glass{position:absolute;inset:18px 5px;background:#23454a;border-radius:9px}.roof{position:absolute;inset:31px 7px 24px;background:var(--mint);border-radius:5px}.lamps{position:absolute;left:5px;right:5px;top:6px;height:3px;border-left:7px solid #fff7d0;border-right:7px solid #fff7d0}.ripple{position:absolute;border:1px solid var(--green);border-radius:50%;left:calc(50% - 47px);top:18px;width:94px;height:94px;transform:scale(var(--pulse,1));opacity:var(--pulse-opacity,.12)}.r2{transform:scale(calc(var(--pulse,1)*1.35));opacity:calc(var(--pulse-opacity,.12)*.5)}.stage-note{position:absolute;left:12px;right:12px;bottom:10px;text-align:center;font-size:11px;color:var(--sub)}.sensor-status{display:flex;flex-wrap:wrap;gap:6px 15px;justify-content:center;font-size:10px;color:var(--sub);margin:12px 0 20px}.mark{width:100%;min-height:118px;display:flex;align-items:center;justify-content:center;gap:16px;background:var(--mint);color:#1f473b;border-radius:18px;font-size:23px;font-weight:600}.mark:active:not(:disabled){transform:scale(.99);background:#8dd7b5}.mark-symbol{font-size:38px;font-weight:300}.mark small{display:block;font-weight:400;font-size:12px;margin-top:2px}.feedback{min-height:23px;font-size:12px;text-align:center;color:var(--sub);margin:13px 0 18px}.record-controls{display:flex;gap:10px}.primary,.secondary{border-radius:11px;padding:12px 16px;min-height:46px;font-size:13px}.primary{background:var(--ink);color:var(--bg)}.secondary{background:var(--track);color:var(--ink)}.record-controls .primary{flex:1}.quiet{font-size:11px;color:var(--sub);margin:14px 0 0;overflow-wrap:anywhere}.library{margin:32px 0}.empty{padding:25px 0;color:var(--sub);font-size:13px}.session-item{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;text-align:left;background:transparent;color:inherit;padding:19px 0;border-bottom:1px solid var(--line)}.session-item strong{font-size:14px;font-weight:500}.session-item small{display:block;font-size:11px;color:var(--sub);margin-top:4px}.session-item .arrow{font-size:21px}.text-button{background:transparent;color:var(--green);font-size:12px;padding:9px 2px}.review{margin-bottom:25px}.field-label{display:block;font-size:12px;color:var(--sub);margin:20px 0 7px}input:not([type=range]),textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;color:inherit;padding:11px;font-size:16px}textarea{resize:vertical}.event-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 18px}.event-tabs button{background:var(--track);color:var(--ink);border-radius:20px;padding:8px 12px;font-size:11px;min-height:40px}.event-tabs button[aria-pressed=true]{background:var(--ink);color:var(--bg)}.chart-header{display:flex;justify-content:space-between;gap:12px;font-size:11px;margin-bottom:5px}.chart-header small{color:var(--sub)}canvas{display:block;width:100%;height:180px;background:var(--bg);border-radius:12px}.playback{display:flex;align-items:center;gap:10px;margin-top:12px}.playback input{flex:1;min-width:0;accent-color:var(--green);height:40px}.playback output{font-size:12px;min-width:47px;text-align:right;font-variant-numeric:tabular-nums}.exports{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.exports button{flex:1;white-space:nowrap}.badge{font-size:10px;margin-left:8px;background:var(--track);padding:3px 6px;border-radius:5px}#alert{background:var(--track);color:var(--warn);font-size:12px;border-radius:12px;padding:13px 16px;margin-bottom:18px}footer{color:var(--sub);font-size:10px;margin-top:30px}footer>span{letter-spacing:.1em}footer p{max-width:650px}body.recording .intro{display:none}body.recording .recorder{margin-top:10px}body.recording #status{color:var(--green)}body.recording #mark{min-height:160px}body.recording #start{background:var(--track);color:var(--ink)}[hidden]{display:none!important}
@media(min-width:700px){.recorder{max-width:600px}.intro h1 br{display:none}.car-stage{height:180px}.library,.review{max-width:760px}}
@media(max-width:370px){body{padding-left:14px;padding-right:14px}.recorder,.review{padding:19px 16px}.mark{font-size:21px}.mark-symbol{font-size:32px}.record-controls{flex-wrap:wrap}.record-controls .primary{flex-basis:100%}.record-controls .secondary{width:100%}.trip-metrics strong{font-size:32px}.exports button{flex-basis:100%}}
@media(prefers-reduced-motion:reduce){.car{transform:none}.ripple{transform:none}.mark:active:not(:disabled){transform:none}}
.copy-area{margin-top:24px}.copy-main{width:100%;min-height:58px;font-size:16px}.file-exports{margin-top:22px;border-top:1px solid var(--line);padding-top:12px}.file-exports summary{color:var(--sub);font-size:12px;padding:8px 0;cursor:pointer}.file-exports .exports{margin-top:12px}