:root{--bg:#0a0e14;--panel:#111821;--panel2:#16202c;--line:#223042;--txt:#d9e2ec;--mut:#8b97a6;--acc:#58a6ff;--ok:#3fb950;--bad:#f85149;--warn:#f0883e}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--txt);font:13px/1.45 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
body.embed-mode,body.embed-mode #app{height:100vh;height:100dvh}
#app{display:grid;grid-template-columns:minmax(0,1fr) 340px;height:100vh;height:100dvh;min-height:420px}
#stage{position:relative;min-height:0;min-width:0;background:#0b1118;overflow:hidden}
#gl,#cv2{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
#hud{position:absolute;left:10px;top:8px;font:600 11px/1.5 "JetBrains Mono",ui-monospace,monospace;color:#e8f0f8;text-shadow:0 1px 3px #000;pointer-events:none;white-space:pre}
#bar{position:absolute;left:8px;right:8px;bottom:8px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;pointer-events:none}
#bar>*{pointer-events:auto}
#bar .grp{display:flex;gap:4px;background:rgba(10,14,20,.62);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:3px}
button{font:inherit;color:var(--txt);background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:5px 9px;cursor:pointer}
button:hover{border-color:var(--acc)} button.on{background:#1b3a5e;border-color:var(--acc);color:#fff}
#bar button{padding:4px 8px;background:rgba(22,32,44,.8)}
#bar select{font:inherit;background:var(--panel2);color:var(--txt);border:1px solid var(--line);border-radius:6px;padding:3px}
#load{position:absolute;inset:0;display:grid;place-items:center;color:var(--mut);background:#0b1118;z-index:3}
#side{overflow-y:auto;border-left:1px solid var(--line);background:var(--panel);padding:8px;min-height:0;overscroll-behavior:contain}
details.sec{border:1px solid var(--line);border-radius:8px;margin:0 0 6px;background:var(--panel2)}
details.sec>summary{cursor:pointer;padding:7px 10px;font-weight:600;list-style:none;display:flex;justify-content:space-between;color:#e6eef7}
details.sec>summary::after{content:"+";color:var(--acc)} details.sec[open]>summary::after{content:"\2212"}
details.sec>summary::-webkit-details-marker{display:none}
details.sec>*:not(summary){margin-left:10px;margin-right:10px} details.sec>*:last-child{margin-bottom:9px}
.tip{color:var(--mut);margin-top:0;margin-bottom:6px;font-size:12px}
.ctl{display:grid;grid-template-columns:1fr auto;gap:0 8px;margin:5px 10px}
.ctl label{color:var(--txt)} .ctl output{font:11px "JetBrains Mono",monospace;color:var(--acc);text-align:right}
.ctl input[type=range]{grid-column:1/3;width:100%;margin:2px 0;accent-color:var(--acc)}
.ctl select{grid-column:1/3;width:100%;background:var(--bg);color:var(--txt);border:1px solid var(--line);border-radius:6px;padding:4px}
.chk{display:flex;gap:7px;align-items:center;margin:5px 10px}
.row{display:flex;flex-wrap:wrap;gap:5px;margin:6px 10px}
.read{display:grid;gap:2px;font:11.5px "JetBrains Mono",monospace;margin:6px 10px}
.read div{display:flex;justify-content:space-between;gap:8px;border-bottom:1px dotted rgba(255,255,255,.07)} .read span{color:var(--mut)} .read b{font-weight:600;color:#e9f1f9;text-align:right}
canvas.g{display:block;width:calc(100% - 20px);height:112px;margin:2px 10px 6px;background:#0c131b;border:1px solid var(--line);border-radius:6px}
figure{margin:0} figcaption{margin:6px 10px 0;color:var(--mut);font-size:11.5px}
.chkbox{font:11.5px/1.45 "JetBrains Mono",monospace;margin:4px 10px} .chkbox .ok{color:var(--ok)} .chkbox .bad{color:var(--bad)} .chkbox div{margin:3px 0}
.sci p,.sci li{color:#c3cfdb} .sci code,.sci .eq{font-family:"JetBrains Mono",monospace;color:#9ecbff} .sci .eq{display:block;margin:4px 0;padding:4px 7px;background:#0c131b;border-radius:5px;overflow-x:auto;white-space:pre}
.sci h4{margin:8px 0 2px;color:#e6eef7;font-size:12.5px} .sci ul{padding-left:18px;margin:4px 0}
.try li{margin:3px 0}
@media (max-width:860px){
 #app{grid-template-columns:1fr;grid-template-rows:minmax(0,58%) minmax(0,42%)}
 #side{border-left:0;border-top:1px solid var(--line)}
 #bar button{padding:3px 6px;font-size:12px}
}
@media (max-width:860px){#bar{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}#bar .grp{flex:0 0 auto}}