:root{--bg:#070c18;--panel:#101a2d;--panel2:#16233b;--line:#243250;--text:#e6edf7;--muted:#93a4c3;--accent:#69db7c;--ok:#3ecf8e;--warn:#ffd43b;--bad:#ff6b6b}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 Inter,system-ui,sans-serif}
body{min-height:100vh;display:flex;flex-direction:column}
body.embed-mode{height:100vh;height:100dvh}
header.top{padding:8px 14px;border-bottom:1px solid var(--line);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
header.top h1{font-size:17px;margin:0}
header.top p{margin:0;color:var(--muted);font-size:12.5px;flex:1;min-width:160px}
a.sw{background:var(--accent);color:#06101f;text-decoration:none;font-weight:700;border-radius:7px;padding:6px 12px;font-size:13px}
main{flex:1;display:grid;grid-template-columns:minmax(260px,330px) minmax(0,1fr);gap:10px;padding:10px;min-height:0}
body.embed-mode main{height:calc(100dvh - 46px)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;overflow:auto;min-height:0}
.panel h2{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:12px 0 4px}
.panel h2:first-child{margin-top:0}
.row{display:flex;flex-wrap:wrap;gap:5px;margin:4px 0}
label.s{display:block;margin:7px 0 1px;color:var(--muted);font-size:12px}
label.s b{color:var(--text);font-family:'JetBrains Mono',monospace;float:right;font-weight:600}
input[type=range]{width:100%;accent-color:var(--accent);margin:0}
button{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:5px 10px;font:600 12.5px Inter,sans-serif;cursor:pointer}
button:hover{border-color:var(--accent)}button.on{background:var(--accent);color:#06101f;border-color:var(--accent)}
.chk{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text);margin:3px 0}
.stagecol{display:flex;flex-direction:column;gap:8px;min-width:0;min-height:0}
.stage{position:relative;flex:1;min-height:340px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#04070f}
#cv{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
.hud{position:absolute;left:8px;top:8px;display:grid;grid-template-columns:repeat(3,auto);gap:5px;pointer-events:none}
.hud div{background:rgba(7,12,24,.72);border:1px solid var(--line);border-radius:7px;padding:3px 8px;backdrop-filter:blur(3px)}
.hud span{display:block;color:var(--muted);font-size:10.5px}.hud strong{font:600 13.5px 'JetBrains Mono',monospace}
.hud2{position:absolute;right:8px;top:8px;display:flex;flex-direction:column;gap:5px;align-items:flex-end}
.hud2 button{background:rgba(7,12,24,.72)}
#status{position:absolute;left:8px;bottom:8px;background:rgba(7,12,24,.78);border:1px solid var(--line);border-radius:7px;padding:3px 9px;font-size:12px;max-width:70%}
#load{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#04070f;color:var(--muted)}
.graphs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.graphs figure{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:4px 6px 2px}
.graphs figcaption{font-size:11px;color:var(--muted);padding:0 2px}
.graphs canvas{display:block;width:100%;height:150px}
.read{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:6px}
.read div{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:4px 8px}
.read span{display:block;color:var(--muted);font-size:10.5px}.read strong{font:600 13.5px 'JetBrains Mono',monospace}
.chkbox{font-size:12px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--panel);margin:4px 0}
.chkbox.ok{border-color:var(--ok)}.chkbox.bad{border-color:var(--bad)}
details.sci{margin-top:10px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:6px 10px}
details.sci summary{cursor:pointer;font-weight:700}
details.sci h3{font-size:13px;margin:10px 0 3px}details.sci p,details.sci li{color:#c5d2ea;font-size:12.5px}
code{font-family:'JetBrains Mono',monospace;background:#0b1424;padding:1px 4px;border-radius:4px;font-size:12px}
.tip{color:var(--muted);font-size:11.5px;margin:2px 0 6px}
@media(max-width:860px){
 main{grid-template-columns:1fr}
 body.embed-mode{overflow:auto}body.embed-mode main{height:auto}
 .stage{min-height:0;height:60vh;flex:none}
 .graphs{grid-template-columns:1fr}
 .stagecol{order:-1}
 .hud{grid-template-columns:repeat(2,auto)}
}
/* layout v2: canvas dominant, controls scroll in their own column, never covering the scene */
main{align-items:start}
.panel{max-height:calc(100dvh - 70px);position:sticky;top:8px}
.stage{flex:none;min-height:0;height:clamp(420px,calc(100dvh - 200px),880px)}
body.embed-mode .stagecol{overflow:auto;max-height:100%}
body.embed-mode .panel{position:static;max-height:100%}
body.embed-mode .stage{height:clamp(300px,70dvh,880px)}
details.grp{border-top:1px solid var(--line);margin-top:8px;padding-top:4px}
details.grp>summary{cursor:pointer;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:700;padding:4px 0}
@media(max-width:860px){.panel{position:static;max-height:none}.stage{height:62vh}body.embed-mode .stage{height:62vh}}