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353px}.project-explorer{background:var(--tv-panel);border-right:1px solid var(--tv-border);overflow:hidden;display:flex;flex-direction:column}.explorer-head{height:71px;display:flex;align-items:center;justify-content:space-between;padding:0 19px;font-size:14px;letter-spacing:.15px}.explorer-head span{display:flex;gap:15px}.explorer-head svg{width:18px;height:18px}.tree{font-size:15px;color:var(--tv-text-2);min-height:0;flex:1 1;overflow-y:auto}.tree-child,.tree-root,.tree-row{height:53px;display:flex;align-items:center;gap:9px;padding:0 18px}.tree-root{font-weight:600;color:var(--tv-text);padding-left:18px}.tree-root svg{width:17px}.tree-child{padding-left:44px;position:relative}.tree-child svg{width:16px;color:var(--tv-muted)}.tree-line{position:absolute;left:28px;height:53px;border-left:1px solid var(--tv-border-strong)}.tree-divider{height:1px;background:var(--tv-border);margin:0 18px 8px}.tree-row{height:53px;font-weight:500;gap:13px}.tree-row svg{width:15px;color:var(--tv-muted)}.design-column{min-width:0;min-height:0;display:grid;grid-template-rows:auto minmax(0,1fr)}.design-toolbar{background:var(--tv-panel);border-bottom:1px solid var(--tv-border);display:flex;align-items:center;align-content:center;flex-wrap:wrap;min-height:69px;padding:8px 17px;gap:8px 12px;position:relative}.toolbar-group{display:flex;gap:4px;flex:none}.design-toolbar .icon-button{width:38px;height:38px}.design-toolbar .tool-selected{background:var(--tv-accent-soft);border:1px solid var(--tv-accent-border);color:var(--tv-accent)}.toolbar-divider{height:28px;border-left:1px solid var(--tv-border);margin:0 1px;flex:none}.share-button{margin-left:0;flex:none;display:flex;align-items:center;gap:8px;height:38px;padding:0 0 0 13px;border-radius:7px;border:1px solid var(--tv-accent-border);background:var(--tv-accent);color:white;font-weight:600}.share-button>svg{width:16px}.share-button 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50.7%),linear-gradient(150deg,transparent 49.3%,var(--tv-grid) 49.8%,var(--tv-grid) 50.2%,transparent 50.7%);background-size:92px 53px;opacity:.78}.cad-webgl{position:absolute;inset:0;z-index:1}.cad-webgl canvas{display:block;width:100%;height:100%}.view-tabs{position:absolute;top:16px;left:16px;display:flex;height:34px;background:var(--tv-elevated);border:1px solid var(--tv-border);border-radius:7px;overflow:hidden;z-index:3}.view-tabs button{border:0;border-right:1px solid var(--tv-border);padding:0 12px;background:transparent;color:var(--tv-text-2);font-size:13px}.view-tabs button:last-child{border:0}.view-tabs .selected{background:var(--tv-accent);color:white;font-weight:600}.axis-graphic{position:absolute;inset:0;width:100%;height:100%;z-index:1}.axis-graphic line{stroke-width:2.2}.axis-blue{stroke:var(--tv-blue-axis)}.axis-green{stroke:var(--tv-green-axis)}.axis-red{stroke:var(--tv-red-axis)}.wire-cube{fill:var(--tv-elevated);stroke:var(--tv-text-2);stroke-width:1.4}.axis-graphic text{font-size:12px;fill:var(--tv-muted);font-weight:700}.orientation-cube{position:absolute;right:28px;top:31px;width:72px;height:62px;background:var(--tv-elevated);border:1px solid var(--tv-border-strong);transform:skewY(-17deg) rotate(0deg);z-index:2;display:flex;align-items:center;justify-content:center;color:var(--tv-text-2);font-size:9px;box-shadow:7px 7px 0 var(--tv-soft-2)}.orientation-cube span{position:absolute;top:5px;font-size:8px}.orientation-cube b{font-size:9px}.orientation-cube i{position:absolute;right:5px;bottom:5px;font-style:normal;font-size:8px}.viewport-rail{position:absolute;width:48px;height:260px;top:217px;border:1px solid var(--tv-border);border-radius:11px;background:var(--tv-elevated);z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:space-around;padding:9px 0}.viewport-rail.left{left:23px}.viewport-rail.right{right:16px}.viewport-rail svg{width:19px;height:19px;color:var(--tv-icon);stroke-width:1.6}.empty-state{position:absolute;z-index:2;top:52.5%;left:50%;transform:translate(-50%,-50%);text-align:center;width:500px}.empty-state h1{margin:0;color:var(--tv-text);font-size:20px;line-height:28px;letter-spacing:-.2px}.empty-state p{margin:9px 0 20px;color:var(--tv-muted);font-size:14px;line-height:21px}.empty-state>div{display:flex;justify-content:center;gap:14px}.empty-state button{height:38px;display:flex;align-items:center;gap:7px;border:1px solid var(--tv-border-strong);border-radius:7px;background:var(--tv-elevated);color:var(--tv-text-2);padding:0 13px;font-size:13px;font-weight:600}.empty-state button svg{width:15px}.empty-state .primary{background:var(--tv-accent);border-color:var(--tv-accent);color:white}.tron-panel{background:var(--tv-panel);border-left:1px solid var(--tv-border);padding:23px 23px 29px;position:relative;min-height:0;overflow:hidden;display:flex;flex-direction:column}.tron-heading{display:flex;gap:10px;align-items:center}.tron-heading>svg{width:23px;height:23px;color:var(--tv-accent)}.tron-heading h2{font-size:20px;line-height:24px;margin:0;letter-spacing:-.4px}.tron-heading p{font-size:12px;line-height:16px;color:var(--tv-muted);margin:2px 0 0}.online{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--tv-success);margin:11px 0 19px 33px}.online i{width:7px;height:7px;border-radius:50%;background:var(--tv-success)}.greeting{background:var(--tv-soft);border:1px solid var(--tv-border);border-radius:11px;padding:14px 15px;display:flex;flex-direction:column;gap:5px;font-size:13px;line-height:19px;flex:none}.greeting span{color:var(--tv-text-2)}.chat-scroll{min-height:0;flex:1 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