:root{
  --bg:#EEF1F4;--panel:#FFFFFF;--ink:#1B2430;--muted:#5A6676;--line:#D3DAE2;
  --accent:#1F5FA8;--accent-ink:#FFFFFF;--scene:#E2E8EE;--warn:#9A5B00;
  --mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{color-scheme:dark;--bg:#12171D;--panel:#1A212A;--ink:#E6EBF1;--muted:#98A4B3;--line:#2E3946;
    --accent:#6FA8E8;--accent-ink:#0E1620;--scene:#222B35;--warn:#E0A84A}
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.45}
.app{display:grid;grid-template-columns:minmax(0,1fr) 360px;height:100%}
.stage{position:relative;background:var(--scene);min-height:0;overflow:hidden}
#cv{width:100%;height:100%;display:block;touch-action:none;cursor:grab}
.views{position:absolute;left:12px;top:12px;right:12px;display:flex;gap:6px;flex-wrap:wrap;pointer-events:none}
.views>*{pointer-events:auto}
.views button,.views select{background:var(--panel)}
.views .gap{flex:1;pointer-events:none}
.status{position:absolute;left:12px;right:12px;bottom:10px;color:var(--muted);font-size:12px;pointer-events:none;
  font-variant-numeric:tabular-nums;text-shadow:0 0 3px var(--scene),0 0 3px var(--scene)}
.tip{position:absolute;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:5px 8px;font-size:12px;
  max-width:280px;pointer-events:none;box-shadow:0 2px 8px rgba(0,0,0,.18);z-index:5}
.tip b{display:block}
aside{background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
aside header{padding:14px 16px 8px}
h1{font-family:var(--mono);font-size:16px;font-weight:600;margin:0}
h2{font-family:var(--mono);font-size:12px;font-weight:600;margin:0 0 8px;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}
h3{font-size:12px;font-weight:600;margin:10px 0 5px;color:var(--muted)}
.sub{color:var(--muted);font-size:12px;margin:4px 0 0}
.tabs{display:flex;border-bottom:1px solid var(--line);padding:0 10px}
.tabs button{border:0;border-bottom:2px solid transparent;border-radius:0;padding:8px 10px;color:var(--muted)}
.tabs button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--accent)}
.tab{overflow-y:auto;padding:14px 16px 24px;display:flex;flex-direction:column;gap:18px;flex:1;min-height:0}
.tab[hidden]{display:none}
.row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
button,select{font:inherit;font-size:13px;color:var(--ink);background:transparent;border:1px solid var(--line);border-radius:6px;padding:6px 10px;cursor:pointer}
button:hover,select:hover{border-color:var(--accent)}
button:disabled{opacity:.45;cursor:default}
button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
button.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
button.small{padding:3px 8px;font-size:12px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
label{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--muted)}
input[type=number],input[type=text]{font:inherit;font-size:13px;color:var(--ink);background:var(--bg);border:1px solid var(--line);
  border-radius:6px;padding:5px 7px;width:100%;font-variant-numeric:tabular-nums}
input[type=range]{width:100%;accent-color:var(--accent)}
.chk{flex-direction:row;align-items:center;gap:6px;font-size:13px;color:var(--ink)}
.read{display:grid;grid-template-columns:1fr auto;gap:2px 10px;font-size:13px;margin:8px 0;font-variant-numeric:tabular-nums}
.read span:nth-child(odd){color:var(--muted)}
.empty{color:var(--muted);font-size:13px}
.note{color:var(--muted);font-size:12px;margin:0}
.warn{color:var(--warn);font-size:12px;margin:0}
.layer{border:1px solid var(--line);border-radius:8px;padding:9px 10px;display:flex;flex-direction:column;gap:6px}
.layer .top{display:flex;align-items:center;gap:8px}
.layer .sw{width:12px;height:12px;border-radius:3px;flex:none}
.layer .nm{flex:1;font-weight:600;font-size:13px}
.layer .cz{color:var(--muted);font-weight:400;font-size:12px}
.layer .opts{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
table{border-collapse:collapse;width:100%;font-size:12px;font-variant-numeric:tabular-nums}
th,td{text-align:right;padding:3px 4px;border-bottom:1px solid var(--line)}
th:first-child,td:first-child{text-align:left}
th{color:var(--muted);font-weight:500}
dialog{border:1px solid var(--line);border-radius:10px;padding:0;background:var(--panel);color:var(--ink);width:min(980px,94vw);max-height:92vh}
dialog::backdrop{background:rgba(10,14,20,.55)}
.dlg-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel)}
.dlg-head h2{margin:0;font-size:14px;color:var(--ink);text-transform:none;letter-spacing:0}
.dlg-body{padding:14px 16px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:16px;overflow:auto}
.dlg-body img{width:100%;height:auto;background:#fff;border:1px solid var(--line);border-radius:6px}
.dlg-body dl{margin:0;font-size:13px}
.dlg-body dt{font-weight:600;margin-top:8px}
.dlg-body dd{margin:0;color:var(--muted)}
@media (max-width:860px){
  html,body{height:auto}
  .app{grid-template-columns:minmax(0,1fr);height:auto}
  .stage{height:62vh}
  aside{border-left:0;border-top:1px solid var(--line)}
  .tab{overflow:visible}
  .dlg-body{grid-template-columns:minmax(0,1fr)}
}