:root{
  --bg:#0d1218;--panel:#141b24;--panel2:#1a232f;--line:#263242;--text:#e7eef6;--muted:#92a3b6;--accent:#4aa3ff;
  --walk:#5ec27a;--trot:#f0b441;--gallop:#ee5d4a;--ke:#f59f45;--pe:#5ab0ff;--ok:#5ec27a;--bad:#ee5d4a;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--mono:ui-monospace,"JetBrains Mono",Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font:13px/1.45 var(--font);-webkit-text-size-adjust:100%}
body{min-height:100vh}
body.embed-mode{height:100vh;height:100dvh;overflow:hidden}
button,select,input{font:inherit;color:inherit}
#app{display:grid;grid-template-columns:minmax(0,1fr) 320px;height:100vh;height:100dvh}
.stage{display:flex;flex-direction:column;min-width:0;min-height:0;position:relative}
.topbar{display:flex;align-items:center;gap:8px;padding:6px 8px;background:var(--panel);border-bottom:1px solid var(--line);flex:0 0 auto}
.title{display:flex;align-items:center;gap:6px;font-weight:600;white-space:nowrap}
.emo{font-size:18px}
.tabs{display:flex;gap:4px;overflow-x:auto;flex:1;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{background:transparent;border:1px solid transparent;border-radius:7px;padding:5px 10px;color:var(--muted);cursor:pointer;white-space:nowrap}
.tabs button[aria-selected=true]{background:var(--panel2);border-color:var(--line);color:var(--text)}
.ctltoggle{display:none;background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:5px 9px;cursor:pointer}
.view{flex:1;min-height:0;display:flex;flex-direction:column}
.view[hidden]{display:none}
.glwrap,.mdlwrap,.trkwrap{position:relative;flex:1;min-height:0;background:#0b1016;overflow:hidden}
.glwrap canvas,.mdlwrap canvas,.trkwrap canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
.strip{flex:0 0 auto;display:flex;height:clamp(110px,26vh,170px);max-height:250px;border-top:1px solid var(--line);background:var(--panel)}
.cwrap{position:relative;flex:1;min-width:0;border-right:1px solid var(--line)}
.cwrap:last-child{border-right:0}
.cwrap canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.costgrid{flex:1;display:grid;grid-template-columns:1fr 1fr;min-height:0}
.cwrap.big{border-right:1px solid var(--line)}
.hud{position:absolute;left:10px;top:10px;pointer-events:none;text-shadow:0 1px 3px #000a}
.hud .chip{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--walk);color:#06210f;font-weight:700;margin-bottom:4px}
.hudline{font-size:15px}.hudline.small{font-size:12px;color:#cfdbe8}
.hud.mini{font-size:12px;background:#0d1218b0;padding:6px 9px;border-radius:8px;max-width:70%;text-shadow:none}
.camrow{position:absolute;right:8px;top:8px;display:flex;gap:4px;flex-wrap:wrap;justify-content:flex-end;max-width:60%}
.camrow button{background:#141b24cc;border:1px solid var(--line);border-radius:7px;padding:4px 8px;cursor:pointer;font-size:12px}
.camrow button.on{background:var(--accent);border-color:var(--accent);color:#04101f}
.nomodel,.loading{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#0d1218dd;border:1px solid var(--line);padding:10px 14px;border-radius:10px;text-align:center;max-width:80%}
.loading[hidden],.nomodel[hidden]{display:none}
.side{overflow:auto;background:var(--panel);border-left:1px solid var(--line);padding:6px 10px 24px;min-height:0}
.grp{border-bottom:1px solid var(--line);padding:6px 0 10px}
.grp[hidden]{display:none}
.grp h3{margin:6px 0 8px;font-size:13px;letter-spacing:.02em}
.grp h4{margin:12px 0 4px;font-size:12px;color:var(--muted);font-weight:600}
details.grp summary{cursor:pointer;font-weight:600;padding:6px 0}
.row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:7px 0;flex-wrap:wrap}
.row>input[type=range],.row>select{flex:1 1 100%}
.row.chk{justify-content:flex-start}
.row2{display:flex;gap:8px;align-items:center;margin:8px 0;flex-wrap:wrap}
output{font-family:var(--mono);color:var(--accent);font-size:12px}
select{background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:5px 7px;min-width:0}
input[type=range]{accent-color:var(--accent);width:100%}
.btn{background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:6px 10px;cursor:pointer}
.btn:hover{border-color:var(--accent)}
.btn.wide{width:100%;margin-top:8px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.seg button{background:var(--panel2);border:0;border-right:1px solid var(--line);padding:5px 9px;cursor:pointer}
.seg button:last-child{border-right:0}
.seg button.on{background:var(--accent);color:#04101f}
.chips{display:flex;flex-wrap:wrap;gap:5px;margin:6px 0}
.chips button{background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:3px 9px;cursor:pointer;font-size:12px}
.chips button:hover{border-color:var(--accent)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px;margin:8px 0}
.grid2 div{background:var(--panel2);border:1px solid var(--line);border-radius:7px;padding:4px 7px;min-width:0}
.grid2 small{display:block;color:var(--muted);font-size:10.5px}
.grid2 b{font-family:var(--mono);font-size:12.5px;font-weight:600}
.kv{font-size:12px;color:var(--muted);margin:6px 0}
.note{font-size:11.5px;color:var(--muted);margin:6px 0}
.tbl{font-size:11.5px;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.tbl .tr{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:6px;padding:3px 7px;border-bottom:1px solid var(--line)}
.tbl .tr:last-child{border-bottom:0}
.tbl .tr.h{background:var(--panel2);color:var(--muted)}
.tbl .tr.cur{background:#4aa3ff22}
.tbl.exp .tr{grid-template-columns:1.6fr 1fr 1fr 34px}
.badge{font-size:11px;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:1px 8px;margin-left:6px;font-weight:500}
.badge.ok{color:var(--ok)}.badge.bad{color:var(--bad)}
.pass{color:var(--ok);font-weight:700}.fail{color:var(--bad);font-weight:700}.info{color:var(--muted)}
.sci{font-size:12.5px}
.sci h5{margin:12px 0 3px;font-size:12.5px;color:var(--accent)}
.sci p{margin:4px 0}
.sci code,.sci .eq{font-family:var(--mono);font-size:12px;background:var(--panel2);padding:1px 5px;border-radius:5px}
.sci .eq{display:block;padding:5px 8px;margin:5px 0;overflow-x:auto;white-space:nowrap}
.sci ul{margin:4px 0 4px 16px;padding:0}
.sci .ref{color:var(--muted);font-size:11.5px}

/* narrow: stage on top, controls under (standalone) or as a drawer (iframe) */
@media (max-width:639px){
  #app{display:flex;flex-direction:column;height:auto;min-height:100vh}
  .stage{height:62vh;height:62dvh;flex:0 0 auto}
  .side{border-left:0;border-top:1px solid var(--line);overflow:visible}
  .title .ttl{display:none}
  .strip{height:clamp(96px,22%,150px)}
  .hudline{font-size:13px}
  body.embed-mode #app{height:100vh;height:100dvh;display:block;min-height:0}
  body.embed-mode .stage{height:100%}
  body.embed-mode .ctltoggle{display:inline-block}
  body.embed-mode .side{position:absolute;left:0;right:0;bottom:0;height:62%;z-index:20;box-shadow:0 -10px 30px #000a;transform:translateY(102%);visibility:hidden;transition:transform .22s ease,visibility 0s .22s;border-top:1px solid var(--accent);overflow:auto}
  body.embed-mode .side.open{transform:none;visibility:visible;transition:transform .22s ease}
}
@media (max-width:639px) and (min-height:700px){ body:not(.embed-mode) .stage{height:60vh;height:60dvh} }