:root{color-scheme:light;--ink:#011356;--blue:#1b45eb;--muted:#5d6d91;--line:#dae2f2;--pale:#f1f5fc;--white:#fff;font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:#f5f7fc;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.43}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #809cff;outline-offset:4px}button,a{-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}
#ag-pusht{max-width:1320px;margin:0 auto;padding:24px 40px 32px}.masthead{display:flex;align-items:center;gap:20px;min-height:35px;margin-bottom:27px}.brand{display:block;object-fit:contain;width:206px;height:24px;flex-shrink:0}.edition{margin-left:auto;font-size:11px;letter-spacing:.13em;color:var(--muted);font-weight:700}.course-link{font-size:13px;margin-left:auto;text-decoration:none;color:var(--muted)}.course-link:not([hidden])+.edition{margin-left:0}.course-link:hover{color:var(--blue)}
.intro{margin-bottom:20px}.eyebrow{margin:0 0 8px;font-size:11px;letter-spacing:.095em;font-weight:750;color:var(--blue)}h1{font-size:clamp(25px,2.6vw,34px);line-height:1.12;letter-spacing:-.035em;font-weight:740;margin:0 0 9px}.instruction{font-size:16px;line-height:1.4;color:var(--muted);margin:0}.task-bar{display:flex;align-items:center;gap:22px;margin-bottom:14px;min-height:42px}.presets{display:flex;gap:4px;padding:4px;background:#e9eef9;border-radius:12px;flex-shrink:0}.presets button{border:0;background:transparent;border-radius:9px;color:var(--muted);font-size:14px;font-weight:650;min-height:36px;padding:8px 15px;white-space:nowrap}.presets button span{font-size:11px;margin-right:7px;opacity:.7;font-weight:500}.presets button[aria-pressed=true]{background:var(--white);color:var(--ink);box-shadow:0 2px 5px #01135610}.presets button[aria-pressed=true] span{color:var(--blue);opacity:1}.task-bar>p{color:var(--muted);font-size:13px;line-height:1.45;margin:0;min-width:0}
.workcell{overflow:hidden;border:1px solid var(--line);border-radius:20px;background:var(--white);box-shadow:0 18px 48px #0113560a}.scene-shell{position:relative;height:clamp(370px,51vh,560px);background:#edf2fa;isolation:isolate}#scene{display:block;width:100%;height:100%;touch-action:none;outline:none;cursor:crosshair}#scene[aria-disabled=true]{cursor:wait}#scene:focus-visible{outline:3px solid #8aa3ff;outline-offset:-5px}.scene-top,.scene-bottom{position:absolute;left:20px;right:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;pointer-events:none}.scene-top{top:16px}.scene-bottom{bottom:16px}.engine-badge,.contact-badge{background:#ffffffd9;border:1px solid #d5dfefcc;backdrop-filter:blur(12px);border-radius:30px;padding:8px 11px;display:flex;align-items:center;gap:7px;font-size:11px;font-weight:600;color:var(--muted);min-height:31px}.engine-badge i{display:block;width:6px;height:6px;border-radius:50%;background:#91a1c4}.engine-badge.is-ready i{background:var(--blue)}.contact-badge{min-width:110px;justify-content:center}.contact-badge.is-contact{color:var(--blue);background:#edf1ff; border-color:#acbfff}.view-button{pointer-events:auto;background:#ffffffed;border:1px solid #d5dfef;min-height:34px;border-radius:9px;color:var(--ink);font-size:12px;font-weight:650;padding:7px 12px;min-width:83px}.view-button:hover{border-color:var(--blue)}.scene-message{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);padding:13px 20px;border-radius:12px;background:#fffffff2;box-shadow:0 6px 28px #01135616;color:var(--ink);font-size:14px;max-width:min(380px,85%);text-align:center;pointer-events:none;line-height:1.5}.scene-message:empty{display:none}.scene-message.success{top:22%;font-weight:700;color:var(--blue)}.input-help{display:flex;align-items:center;gap:4px;color:var(--muted);font-size:11px;background:#ffffffbd;border-radius:7px;padding:5px 7px}.input-help>span{padding-left:3px}kbd{font:11px "Segoe UI",sans-serif;background:white;border:1px solid var(--line);border-radius:4px;display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:20px}
.telemetry{display:grid;grid-template-columns:1.4fr 1fr 1fr;align-items:center;padding:18px 27px 19px;min-height:106px;gap:30px;border-top:1px solid var(--line)}.metric-label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:5px}.metric{border-left:1px solid var(--line);padding-left:30px}output{font-variant-numeric:tabular-nums}.metric output,.coverage-metric output{font-size:30px;line-height:1.15;font-weight:700;letter-spacing:-.035em;display:block;height:35px;white-space:nowrap}.metric output span,.coverage-metric output span{font-size:17px;font-weight:500;letter-spacing:0;margin-left:4px;color:var(--muted)}.coverage-metric>div:first-child{display:flex;align-items:baseline;justify-content:space-between;gap:15px}.coverage-metric output{color:var(--blue)}.coverage-metric output span{color:var(--blue)}.coverage-track{height:5px;margin-top:10px;background:#e8eef8;border-radius:6px;position:relative;overflow:visible}.coverage-track>span{display:block;height:100%;width:0;background:var(--blue);border-radius:6px}.coverage-track>i{position:absolute;left:95%;top:-3px;width:2px;height:11px;background:var(--ink);opacity:.45}
.control-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:17px 1px 15px;min-height:78px}.actions{display:flex;gap:8px;flex-shrink:0}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:42px;border:1px solid #cdd8ec;background:var(--white);color:var(--ink);border-radius:10px;font-size:13px;font-weight:650;padding:10px 16px;white-space:nowrap}.button:hover:not(:disabled){border-color:var(--blue);background:#f0f4ff}.button-primary{min-width:111px;border-color:var(--blue);background:var(--blue);color:white;box-shadow:0 5px 13px #1b45eb1e}.button-primary:hover:not(:disabled){background:#1338cb;color:white}.demo-button{color:var(--blue)}#status{font-size:13px;color:var(--muted);line-height:1.4;text-align:right;margin:0;height:37px;display:flex;align-items:center;justify-content:flex-end;overflow:auto;max-width:490px;font-variant-numeric:tabular-nums}
.grounding-panel{display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:20px;align-items:center;padding:17px 20px;margin:0 0 14px;border:1px solid var(--line);border-radius:13px;background:white}.grounding-legend{display:flex;flex-direction:column;gap:9px;font-size:12px;color:var(--muted)}.grounding-legend>span{display:flex;gap:7px;align-items:center}.solid-key,.dashed-key{display:block;width:19px;height:12px;border:2px solid var(--ink);border-radius:2px}.solid-key{background:var(--ink)}.dashed-key{border-style:dashed;border-color:#7687aa}.grounding-panel label{font-size:12px;font-weight:600;min-width:0}.grounding-panel label>span{display:flex;justify-content:space-between;gap:10px;margin-bottom:7px}.grounding-panel label output{color:var(--blue)}.grounding-panel input[type=range]{display:block;appearance:auto;accent-color:var(--blue);border:0;margin:0;padding:0;width:100%;height:24px;box-shadow:none;background:transparent}#observation-error{grid-column:1/-1;font-size:11px;color:var(--muted);margin:-9px 0 0;text-align:right;font-variant-numeric:tabular-nums;height:14px}
.notes{border-top:1px solid var(--line);margin-top:0}.notes>summary{font-size:13px;font-weight:600;color:var(--muted);display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;min-height:46px}.notes>summary::-webkit-details-marker{display:none}.notes>summary span{font-size:21px;font-weight:400}.notes[open]>summary span{transform:rotate(45deg)}.notes-content{display:grid;grid-template-columns:.95fr 1.15fr;gap:40px;padding:10px 0 18px;font-size:14px;line-height:1.65;color:var(--muted)}.experiments{padding-left:20px;margin:0}.experiments li{padding-left:4px;margin-bottom:15px}.experiments strong{color:var(--ink)}.model-notes h2{font-size:14px;color:var(--ink);margin:0 0 8px}.model-notes p{margin:0 0 12px}.formula{color:var(--ink);white-space:nowrap}.references{font-size:12px}.references a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:2px}
@media(min-width:1600px){#ag-pusht{padding-top:30px}.scene-shell{height:540px}}
@media(max-width:900px){#ag-pusht{padding:20px 22px}.task-bar{flex-direction:column;align-items:flex-start;gap:9px}.task-bar>p{height:19px}.masthead{margin-bottom:22px}.scene-shell{height:450px}.telemetry{padding:17px 20px;gap:20px}.metric{padding-left:20px}.control-bar{align-items:flex-start;flex-direction:column;gap:8px;padding-bottom:12px}.control-bar #status{text-align:left;justify-content:flex-start;max-width:100%;height:25px}.notes-content{gap:24px}}
@media(max-width:600px){#ag-pusht{padding:17px 14px 24px}.masthead{gap:10px;margin-bottom:20px}.brand{width:172px;height:21px}.edition{font-size:9px;letter-spacing:.08em}.course-link{font-size:11px}.course-link:not([hidden])+.edition{display:none}.eyebrow{font-size:9px}h1{font-size:26px;line-height:1.12;max-width:350px}.instruction{font-size:14px}.intro{margin-bottom:17px}.presets{width:100%;justify-content:space-between}.presets button{padding:8px 11px;flex:1;font-size:13px}.presets button span{margin-right:5px;font-size:10px}.task-bar{gap:8px;margin-bottom:11px}.task-bar>p{font-size:11px;line-height:1.4;height:31px}.scene-shell{height:410px}.workcell{border-radius:15px}.scene-top,.scene-bottom{left:12px;right:12px}.scene-top{top:12px}.scene-bottom{bottom:12px}.engine-badge{font-size:10px;padding:7px 9px}.input-help{font-size:9px;gap:2px;padding:5px}.input-help kbd{min-width:15px;height:17px;font-size:9px}.contact-badge{font-size:10px;min-width:94px;padding:7px}.telemetry{padding:14px;gap:13px;min-height:90px;grid-template-columns:1.3fr .95fr 1fr}.metric{padding-left:13px}.metric-label{font-size:10px;line-height:1.25;white-space:nowrap}.metric output,.coverage-metric output{font-size:24px;height:29px}.metric output span,.coverage-metric output span{font-size:13px;margin-left:2px}.coverage-metric>div:first-child{display:block}.coverage-metric .metric-label{margin-bottom:5px}.coverage-track{margin-top:6px;height:4px}.coverage-metric output{height:26px}.actions{width:100%;gap:6px}.button{padding:10px 11px;font-size:12px;gap:6px}.button-primary{min-width:94px}.demo-button{margin-left:auto}.control-bar{padding-top:13px}.grounding-panel{padding:14px;grid-template-columns:1fr 1fr;gap:13px}.grounding-legend{grid-column:1/-1;flex-direction:row;gap:20px}.grounding-panel label{font-size:11px}.grounding-panel label>span{gap:5px}#observation-error{margin:-4px 0 0}.notes>summary{font-size:12px}.notes-content{grid-template-columns:1fr;gap:12px;font-size:13px}.scene-message{font-size:13px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
/* A working surface, not a panoramic empty stage: score sits beside the board. */
@media(min-width:901px){
  #ag-pusht{padding-top:18px;padding-bottom:22px}.masthead{margin-bottom:16px;min-height:28px}.intro{margin-bottom:13px}.eyebrow{margin-bottom:6px}h1{margin-bottom:7px;font-size:31px}.instruction{font-size:15px}.task-bar{margin-bottom:12px;gap:18px}.workcell{display:grid;grid-template-columns:minmax(0,1fr)220px}.scene-shell{height:clamp(390px,calc(100vh - 285px),540px)}.telemetry{display:flex;flex-direction:column;justify-content:center;align-items:stretch;padding:26px 22px;gap:26px;border-top:0;border-left:1px solid var(--line);min-height:0}.coverage-metric{padding-bottom:8px}.coverage-metric>div:first-child{display:block}.coverage-metric .metric-label{font-size:13px;margin-bottom:10px}.coverage-metric output{font-size:45px;height:53px}.coverage-metric output span{font-size:22px}.coverage-track{margin-top:14px;height:6px}.metric{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}.metric .metric-label{font-size:12px}.metric output{font-size:32px;height:38px}.control-bar{min-height:66px;padding-top:12px;padding-bottom:12px}.notes>summary{min-height:40px}
}
@media(max-width:600px){.scene-shell{height:clamp(310px,calc(100vw - 28px),450px)}}