:root{--bg: #0e1422;--panel: #161e30;--panel-2: #1d273d;--line: #2a3650;--text: #e6ecf7;--muted: #8d9ab5;--accent: #4f86f7;--accent-2: #39b54a;--danger: #e34f5e;--shadow: 0 2px 12px rgba(0, 0, 0, .35);color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);font-size:13px}.app{display:grid;grid-template-rows:auto 1fr;height:100vh}.topbar{display:flex;align-items:center;gap:16px;padding:10px 16px;background:linear-gradient(180deg,#1a2538,#131b2c);border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:2}.brand{display:flex;align-items:baseline;gap:8px}.brand h1{font-size:18px;margin:0;letter-spacing:.5px}.brand .logo{color:var(--accent)}.brand small{color:var(--muted)}.topbar .spacer{flex:1}.run-controls{display:flex;align-items:center;gap:10px}.run-controls label{color:var(--muted);display:flex;align-items:center;gap:6px}.layout{display:grid;grid-template-columns:320px 1fr 300px;overflow:hidden}.sidebar{background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;padding:12px}.sidebar.right{border-right:none;border-left:1px solid var(--line)}.stage{position:relative;overflow:hidden;background:#0a0f1a;display:flex;flex-direction:column}.section{background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:12px;margin-bottom:12px}.section h2{font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 10px}.field{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;gap:8px}.field label{color:var(--muted)}input[type=number],input[type=text],select{background:#0e1626;border:1px solid var(--line);border-radius:6px;color:var(--text);padding:5px 8px;width:90px;font-size:13px}input[type=text]{width:130px}input[type=range]{width:120px}input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent)}button{background:var(--panel-2);border:1px solid var(--line);color:var(--text);border-radius:6px;padding:6px 12px;cursor:pointer;font-size:13px;transition:background .15s,border-color .15s}button:hover{background:#243150;border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.primary:hover{background:#3f74e0}button.danger{border-color:var(--danger);color:#ffb4bb}button:disabled{opacity:.45;cursor:not-allowed}button.tiny{padding:3px 7px;font-size:12px}.part-row{display:flex;align-items:center;gap:8px;padding:7px 8px;border:1px solid var(--line);border-radius:7px;margin-bottom:7px;background:#131c2e}.part-row .swatch{width:26px;height:26px;border-radius:5px;flex:none;border:1px solid rgba(255,255,255,.15)}.part-row .pname{flex:1;min-width:0}.part-row .pname .nm{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.part-row .pname .dim{color:var(--muted);font-size:11px}.qty{width:52px!important}.part-detail{border-top:1px dashed var(--line);margin-top:6px;padding-top:8px}.row{display:flex;gap:8px;flex-wrap:wrap}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.stat{background:#0e1626;border:1px solid var(--line);border-radius:7px;padding:9px}.stat .v{font-size:20px;font-weight:700}.stat .l{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.5px}.util-bar{height:10px;background:#0e1626;border:1px solid var(--line);border-radius:6px;overflow:hidden;margin-top:6px}.util-bar>div{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .3s}.sheet-tabs{display:flex;gap:6px;padding:8px 10px;background:#0c1220;border-bottom:1px solid var(--line);overflow-x:auto;align-items:center}.sheet-tab{padding:4px 10px;border-radius:6px 6px 0 0;font-size:12px;white-space:nowrap}.sheet-tab.active{background:var(--accent);border-color:var(--accent);color:#fff}.canvas-wrap{flex:1;position:relative}canvas{display:block;width:100%;height:100%}.empty-stage{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);gap:10px;text-align:center;padding:20px}.badge{display:inline-block;padding:2px 8px;border-radius:99px;font-size:11px;background:#0e1626;border:1px solid var(--line);color:var(--muted)}.badge.run{color:#c7e8ff;border-color:var(--accent)}.badge.done{color:#bff0c5;border-color:var(--accent-2)}.error{color:#ffb4bb;background:#e34f5e1f;border:1px solid var(--danger);border-radius:6px;padding:8px;margin-bottom:10px}.hint{color:var(--muted);font-size:11px;line-height:1.5}.dropzone{border:1px dashed var(--line);border-radius:8px;padding:14px;text-align:center;color:var(--muted);cursor:pointer}.dropzone:hover{border-color:var(--accent);color:var(--text)}