html,body.tool{height:100%}
body.tool{display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}
body.tool .top{width:100%;max-width:none;padding:8px 14px;flex:0 0 auto}
body.tool .top nav a{padding:5px 9px;font-size:14px}
#cad{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:176px minmax(0,1fr) 248px;grid-template-rows:auto minmax(0,1fr);grid-template-areas:"bar bar bar" "shapes stage props"}
.bar{grid-area:bar;display:flex;align-items:center;gap:6px;padding:6px 10px;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}
@media(max-width:860px){.bar{flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}}
.bar button,.bar select,.pname{font:600 13px system-ui,sans-serif;color:var(--fg);background:#1d2029;border:1px solid var(--line);border-radius:8px;padding:6px 10px;cursor:pointer;min-height:32px}
.bar button:hover:not(:disabled){border-color:#4a5266;background:#222633}
.bar button:disabled{opacity:.35;cursor:default}
.bar button.on{background:var(--red);border-color:var(--red);color:#fff}
.bar button.primary{background:var(--red);border-color:var(--red);color:#fff}.bar button.primary:hover{background:var(--red2)}
.bar .sep{width:1px;height:22px;background:var(--line);flex:0 0 1px;margin:0 2px}
.bar .sel{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:13px}
.pname{cursor:text;width:150px;font-weight:700}
#shapes{grid-area:shapes;background:var(--panel);border-right:1px solid var(--line);padding:10px;overflow-y:auto}
#props{grid-area:props;background:var(--panel);border-left:1px solid var(--line);padding:10px 12px;overflow-y:auto}
#cad h2{margin:0 0 8px;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
#cad h3{margin:12px 0 4px;font-size:12px;color:var(--muted);font-weight:700}
.hint{font-size:12.5px;color:var(--muted);line-height:1.45}
#shapegrid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
#shapegrid button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;background:#1d2029;border:1px solid var(--line);border-radius:10px;color:var(--fg);font:600 12px system-ui,sans-serif;cursor:grab}
#shapegrid button:hover{border-color:var(--cyan)}
#shapegrid svg{width:38px;height:38px}
#stage{grid-area:stage;position:relative;min-width:0;min-height:0;background:radial-gradient(ellipse at 50% 30%,#1c2230,#0d1017)}
#gl{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:none}
#dims{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);background:rgba(11,12,16,.85);border:1px solid var(--line);border-radius:999px;padding:4px 12px;font:600 12px ui-monospace,Menlo,monospace;color:var(--cyan);pointer-events:none;white-space:nowrap}
#toast{position:absolute;left:50%;top:14px;transform:translateX(-50%);background:#15181f;border:1px solid var(--line);border-left:3px solid var(--amber);border-radius:10px;padding:8px 14px;font-size:13px;max-width:90%;z-index:3}
#welcome{position:absolute;left:12px;top:12px;max-width:300px;background:rgba(21,24,31,.94);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-size:13px;display:flex;flex-direction:column;gap:6px;z-index:2}
#welcome span{color:var(--muted);line-height:1.45}#welcome u{color:var(--fg);text-decoration:none;font-weight:700}
#welcome button{align-self:flex-start;background:var(--red);color:#fff;border:0;border-radius:8px;padding:5px 12px;font-weight:700;cursor:pointer}
.mtabs{display:none}
.row{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:13px;color:var(--muted)}
.row input{flex:1;min-width:0}
#cad input[type=text],#cad input[type=number],#p-name{background:#0f1218;color:var(--fg);border:1px solid var(--line);border-radius:7px;padding:5px 7px;font:13px system-ui,sans-serif;width:100%}
#cad input:focus,.pname:focus{outline:2px solid var(--cyan);outline-offset:1px}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{background:#1d2029;color:var(--fg);border:0;padding:6px 14px;font:600 13px system-ui,sans-serif;cursor:pointer}
.seg button.on{background:var(--red);color:#fff}
#swatches{display:flex;flex-wrap:wrap;gap:6px}
#swatches button{width:24px;height:24px;border-radius:50%;border:2px solid transparent;cursor:pointer;padding:0}
#swatches button.on{border-color:#fff}
#swatches input[type=color]{width:24px;height:24px;border:0;padding:0;background:none;cursor:pointer}
.xyz{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.xyz label{font-size:11px;color:var(--muted);display:flex;flex-direction:column;gap:2px}
details.keys{margin-top:16px;font-size:12.5px;color:var(--muted)}details.keys summary{cursor:pointer;font-weight:700;color:var(--fg)}
kbd{background:#1d2029;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:0 5px;font:11px ui-monospace,monospace;color:var(--fg)}
#modal{position:fixed;inset:0;background:rgba(0,0,0,.65);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
#modal[hidden]{display:none}
.card-m{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px;max-width:440px;width:100%}
.card-m h2{margin:0 0 6px;font-size:20px;text-transform:none;letter-spacing:0;color:var(--fg)}
.exp{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}
.exp button{display:flex;flex-direction:column;gap:2px;align-items:flex-start;background:#1d2029;border:1px solid var(--line);border-radius:12px;padding:12px;color:var(--fg);cursor:pointer;font:inherit}
.exp button:hover{border-color:var(--red2)}.exp b{font-size:18px}.exp span{font-size:12px;color:var(--muted)}
.close{background:#2a2f3a;color:var(--fg);border:0;border-radius:8px;padding:7px 16px;cursor:pointer;font-weight:600}
[hidden]{display:none!important}
@media(max-width:860px){
  body.tool .top{padding:6px 10px}body.tool .top nav{display:none}
  #cad{grid-template-columns:minmax(0,1fr);grid-template-areas:"bar" "stage"}
  #shapes,#props{position:absolute;left:0;right:0;bottom:46px;top:auto;max-height:46%;z-index:5;border:0;border-top:1px solid var(--line);display:none;grid-area:auto}
  #cad.show-shapes #shapes,#cad.show-props #props{display:block}
  #shapegrid{grid-template-columns:repeat(4,1fr)}
  .mtabs{display:flex;position:absolute;left:0;right:0;bottom:0;height:46px;background:var(--panel);border-top:1px solid var(--line);z-index:6}
  .mtabs button{flex:1;background:none;border:0;color:var(--fg);font-weight:700;font-size:14px}
  #dims{bottom:56px}#welcome{max-width:calc(100% - 24px)}
  .pname{width:110px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}