:root{--panel-bg:#161b22e6;--line:#ffffff17;--muted:#9fb0c0;--accent:#2f6fde;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}html,body{background:#dfe7ee;height:100%;margin:0;overflow:hidden}#app,#app canvas{width:100%;height:100%;display:block}.panel{box-sizing:border-box;background:var(--panel-bg);color:#e8edf2;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);-webkit-user-select:none;user-select:none;border-radius:12px;width:300px;max-height:calc(100vh - 24px);font-size:13px;line-height:1.4;position:fixed;top:12px;left:12px;overflow:auto;box-shadow:0 6px 24px #00000040}.panel header{justify-content:space-between;align-items:flex-start;gap:8px;padding:10px 12px 8px;display:flex}.panel h1{margin:0;font-size:15px;font-weight:650}.panel .sub{color:var(--muted);margin:2px 0 0;font-size:12px}.panel .body{padding:0 12px 10px}.panel.collapsed .body{display:none}.panel button{color:inherit;font:inherit;cursor:pointer;background:#2c3642;border:1px solid #3b4755;border-radius:7px;padding:5px 9px}.panel button:hover{background:#36424f}.panel button.active{background:var(--accent);border-color:var(--accent)}.panel button.icon{padding:0 9px;font-size:16px;line-height:24px}.modes{grid-template-columns:repeat(3,1fr);gap:6px;display:grid}.help{color:var(--muted);margin:8px 0;padding-left:18px;font-size:12px}.panel section{border-top:1px solid var(--line);padding:8px 0}.panel label{cursor:pointer;align-items:center;gap:8px;padding:3px 0;display:flex}.panel input[type=range]{width:100%;margin:4px 0}.panel output{font-variant-numeric:tabular-nums}kbd{color:var(--muted);border:1px solid #45515f;border-radius:4px;margin-left:auto;padding:0 5px;font:11px ui-monospace,monospace}.panel button kbd{margin-left:4px}.row{align-items:center;gap:6px;display:flex}.grow{flex:1;gap:8px;display:flex}.hint{color:var(--muted);margin:6px 0 0;font-size:11.5px}.results{-webkit-user-select:text;user-select:text;max-height:190px;margin:8px 0;padding-left:24px;overflow:auto}.results li{font-variant-numeric:tabular-nums;margin:3px 0}.results .plan{color:var(--muted)}.results small{color:var(--muted);display:block}.crosshair{pointer-events:none;width:18px;height:18px;margin:-9px 0 0 -9px;display:none;position:fixed;top:50%;left:50%}.crosshair:before,.crosshair:after{content:"";background:#fff;position:absolute;box-shadow:0 0 2px #000c}.crosshair:before{width:2px;height:18px;top:0;left:8px}.crosshair:after{width:18px;height:2px;top:8px;left:0}.walk-hint{background:var(--panel-bg);color:#fff;pointer-events:none;border-radius:8px;padding:8px 14px;font-size:13px;display:none;position:fixed;bottom:84px;left:50%;transform:translate(-50%)}.crosshair.show,.walk-hint.show{display:block}#VRButton,a[href*=immersiveweb]{background:var(--panel-bg)!important;opacity:.95!important}.no-vr{opacity:.7!important;width:auto!important;padding:6px 10px!important;font-size:11px!important;bottom:12px!important;left:auto!important;right:12px!important}.fatal{color:#1d2733;text-align:center;place-items:center;padding:24px;font-size:16px;display:grid;position:fixed;inset:0}