:root{color-scheme:light;--ink:#172438;--muted:#657184;--border:#dce3ec;--blue:#285be8;--dark:#101724;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;background:#f4f7fb;color:var(--ink);font-size:16px;line-height:1.5}main{max-width:1280px;margin:auto;padding:28px 36px}header{display:flex;justify-content:space-between;align-items:center;gap:16px}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:750;letter-spacing:-.5px}.brand small{font-size:14px;font-weight:550;color:var(--muted);letter-spacing:0}.brandmark{display:grid;place-items:center;background:var(--blue);color:#fff;width:34px;height:34px;border-radius:10px;font-size:23px}.privacy-tag{font-size:14px;color:var(--muted)}.intro{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:42px 0 25px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:1.8px;color:var(--blue);margin:0 0 8px}h1{font-size:clamp(26px,3.2vw,38px);line-height:1.18;letter-spacing:-1.2px;margin:0 0 12px}.intro p:not(.eyebrow){margin:0;color:var(--muted)}.prototype{flex-shrink:0;border:1px solid var(--border);padding:6px 12px;border-radius:6px;font-size:13px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;align-items:start}.viewer{background:var(--dark);border-radius:14px;overflow:hidden;color:#fff;box-shadow:0 12px 35px #10172416}.viewer-bar,.viewer-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;font-size:14px;background:#182234}#status{display:flex;align-items:center;gap:8px}#status i,.legend i{width:8px;height:8px;border-radius:50%;background:#8b97a9;display:inline-block}#fps,.viewer-footer{color:#b0bccf;font-variant-numeric:tabular-nums}.stage{position:relative;aspect-ratio:4/3;overflow:hidden;background:#0d1420}.stage video,.stage canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.stage.mirrored video,.stage.mirrored canvas{transform:scaleX(-1)}.stage video{display:none}.stage.active video{display:block}.empty{height:100%;display:flex;justify-content:center;align-items:center;flex-direction:column;text-align:center;padding:25px}.empty svg{stroke:#7891b7;fill:none;stroke-width:2;margin-bottom:18px}.empty h2{font-size:22px;margin:0 0 10px;font-weight:600}.empty p{font-size:15px;color:#9eabc1;margin:0}.controls{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px}.controls h2{font-size:18px;margin:0 0 8px}.muted{color:var(--muted);font-size:14px;margin:0 0 20px}.field{display:block;font-size:14px;font-weight:650}select{display:block;width:100%;margin:8px 0 14px;border:1px solid var(--border);border-radius:7px;background:#fff;color:var(--ink);font:inherit;font-size:14px;padding:12px 9px}button{font:inherit;font-size:14px;font-weight:650;border:0;border-radius:7px;padding:12px 16px;cursor:pointer;min-height:44px}.primary{background:var(--blue);color:#fff;width:100%}.secondary{background:#edf1f7;color:var(--ink);border:1px solid #dce3ec}#stop{width:100%;margin-top:9px}button:hover:not(:disabled){filter:brightness(.96)}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #769fff;outline-offset:3px}.message{color:var(--muted);font-size:13px;min-height:38px;margin:12px 0 0}.message.error{color:#b32d3c}.divider{border-top:1px solid var(--border);margin:19px 0}h3{font-size:14px;margin:0 0 12px}.switch{position:relative;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:14px;min-height:42px;cursor:pointer}.switch input{position:absolute;right:0;width:38px;height:22px;opacity:0;margin:0}.switch-ui{display:block;width:38px;height:22px;background:#c8d1df;border-radius:15px;padding:3px;pointer-events:none}.switch-ui:after{content:"";display:block;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .15s}.switch input:checked+.switch-ui{background:var(--blue)}.switch input:checked+.switch-ui:after{transform:translateX(16px)}.switch input:focus-visible+.switch-ui{outline:3px solid #769fff;outline-offset:3px}.text-button{background:none;color:var(--blue);padding:4px 0;min-height:36px;font-size:13px}.legend{display:flex;flex-wrap:wrap;gap:8px 13px;margin-top:18px;font-size:12px;color:var(--muted)}.legend span{display:flex;align-items:center;gap:5px}.legend .green{background:#1bb681}.legend .amber{background:#df9d22}.legend .red{background:#e34d63}.alert{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #f2abb4;background:#fff0f2;border-radius:12px;padding:18px 22px;margin-top:20px}.alert[hidden],.empty[hidden]{display:none}.alert strong{color:#a51d33}.alert p{margin:4px 0 0;font-size:14px}.alert button{flex-shrink:0}.details{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin:32px 0}.details h3{font-size:14px;margin-bottom:8px}.details p{color:var(--muted);font-size:14px;margin:0}footer{display:flex;flex-wrap:wrap;gap:12px 24px;border-top:1px solid var(--border);padding-top:18px;font-size:12px;color:var(--muted)}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.about{max-width:800px}.about h1{margin-top:35px}.about h2{font-size:22px;margin-top:28px}.about pre{white-space:pre-wrap;font-size:13px;background:white;padding:20px;border:1px solid var(--border);border-radius:8px}.about p,.about li{color:#46556b}@media(max-width:850px){main{padding:22px}.workspace{grid-template-columns:1fr}.controls{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.controls h2,.controls .muted,.controls .field,.controls .message,.controls .divider,.controls h3,.controls .legend{grid-column:1/-1}#stop{margin:0}.details{gap:20px}.intro{margin-top:30px}}@media(max-width:560px){main{padding:18px 14px}.privacy-tag{font-size:12px}.intro{display:block}.prototype{display:inline-block;margin-top:15px}.workspace{gap:16px}.stage{aspect-ratio:3/4;max-height:68vh}.controls{padding:18px;gap:0 12px}.details{grid-template-columns:1fr;gap:18px;margin:24px 4px}.alert{align-items:stretch;flex-direction:column}footer{gap:10px 15px}.intro p:not(.eyebrow){font-size:14px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
:root .setup,:root .display-controls{min-width:0}
.alert{position:fixed;bottom:16px;left:16px;right:16px;max-width:900px;margin:0 auto;z-index:10;box-shadow:0 8px 40px #10172440;max-height:45vh;overflow:auto}
.calibration{padding:18px;background:#182234;font-size:13px;color:#d5e0ef}.calibration h3{margin-bottom:6px}.calibration p{margin:8px 0}.calibration select{max-width:300px}.zone-buttons{display:flex;flex-wrap:wrap;gap:8px}.calibration .text-button{color:#a5c5ff}.calibration ul{padding-left:20px}.stage canvas.editing{touch-action:none;cursor:crosshair}.diagnostics{margin-top:20px;padding:18px;border:1px solid var(--border);background:#fff;border-radius:12px;font-size:13px;overflow-wrap:anywhere}.diagnostics summary{font-size:15px;font-weight:650;cursor:pointer;min-height:32px}.diagnostics p{margin:10px 0;color:var(--muted)}
@media(max-width:850px){.controls{display:block}.setup{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.setup h2,.setup .muted,.setup .field,.setup .message{grid-column:1/-1}}
@media(max-width:560px){.workspace{display:flex;flex-direction:column}.controls{display:contents}.setup,.display-controls{width:100%;background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.setup{order:0;gap:0 12px}.viewer{order:1;width:100%}.display-controls{order:2}.display-controls .divider{display:none}.stage{aspect-ratio:4/3;max-height:none}.intro{margin-top:22px;margin-bottom:18px}.prototype{margin-top:10px}}