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.dv-hidden{fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round}.drawing-sheet .dv-hatch-line{stroke:#000}.drawing-sheet .dv-detail-boundary{fill:none;stroke:#000}.drawing-sheet .dv-section-line path,.drawing-sheet .dv-detail-mark circle{fill:none;stroke:#000}.drawing-sheet .dv-section-line .dv-arrow{fill:#000}.drawing-sheet .dv-text text{fill:#000;font-family:SF Mono,Menlo,Consolas,Courier New,monospace;dominant-baseline:hanging}.drawing-sheet .drawing-view.is-preview{opacity:.45}.drawing-sheet .dv-hover{fill:none;stroke:var(--shell-accent-light);stroke-width:1px;stroke-dasharray:5 4}.drawing-sheet .dv-selected{fill:#2e68ff12;stroke:var(--shell-accent);stroke-width:2px}.drawing-sheet .dv-sketch{fill:none;stroke:var(--shell-accent);stroke-width:2px}.drawing-sheet .dv-sketch.is-placement{stroke-dasharray:6 4}.projection-toggles{position:absolute;inset:0;pointer-events:none}.projection-toggle{position:absolute;transform:translate(-50%,-50%);width:30px;height:30px;border-radius:50%;pointer-events:auto;background:var(--shell-accent)!important;color:#fff;border:2px solid #fff!important;font-size:15px;line-height:1;box-shadow:0 2px 8px #0006}.projection-toggle:hover:not(:disabled){background:var(--shell-accent-light)!important}.projection-refusal{position:absolute;transform:translate(-50%);background:#2d2d2d;color:#fff;border:1px solid var(--shell-divider);border-radius:6px;padding:4px 8px;font-size:12px;white-space:nowrap;pointer-events:none}.drawing-info-bubble{position:absolute;top:56px;left:50%;transform:translate(-50%);z-index:22;display:flex;align-items:center;gap:12px;padding:6px 8px 6px 14px;background:var(--shell-panel);border:1px solid var(--shell-divider);border-radius:var(--shell-overlay-radius);box-shadow:var(--shell-shadow);font-size:13px;color:var(--shell-text)}.drawing-info-bubble button,.drawing-card-actions button.is-primary{background:var(--shell-accent);color:#fff;border-radius:var(--shell-radius);padding:5px 12px;font-size:13px}.drawing-info-bubble button:hover:not(:disabled),.drawing-card-actions button.is-primary:hover:not(:disabled){background:var(--shell-accent-light)}.drawing-card{position:absolute;z-index:23;width:300px;padding:12px;background:var(--shell-panel);border:1px solid var(--shell-divider);border-radius:var(--shell-overlay-radius);box-shadow:var(--shell-shadow);color:var(--shell-text);font-size:13px}.drawing-card h2{margin:0 0 8px;font-size:14px;font-weight:600}.drawing-card h3{margin:12px 0 4px;font-size:12px;font-weight:600;color:var(--shell-text-2)}.drawings-editor>.drawing-card[data-testid=base-view-card]{top:110px;left:50%;transform:translate(-50%)}.drawing-view-card{bottom:12px}.create-drawing-card{top:110px}.drawing-hint,.drawing-count{margin:4px 0;color:var(--shell-text-2);font-size:12px;line-height:1.5}.drawing-chips{display:flex;flex-wrap:wrap;gap:4px}.drawing-chips button{padding:4px 10px;border-radius:var(--shell-radius);background:var(--shell-fill);color:var(--shell-text);font-size:12px}.drawing-chips button.is-active{background:var(--shell-accent);color:#fff}.drawing-card-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:10px}.drawing-card-actions button{padding:5px 12px;border-radius:var(--shell-radius);background:var(--shell-fill-2);color:var(--shell-text);font-size:13px}.drawing-field,.dp-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:5px 0;font-size:13px;color:var(--shell-text)}.drawing-field 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14px;color:var(--shell-text)}.dp-header h2{font-size:14px;font-weight:600;margin:10px 0 4px}.dp-section{border-top:1px solid var(--shell-divider);padding-top:6px;margin-top:6px}.dp-section h3{font-size:12px;font-weight:600;color:var(--shell-text-2);margin:4px 0}.project-sidebar{position:absolute;left:0;top:0;bottom:0;width:320px;z-index:36;background:var(--shell-panel);border-right:1px solid var(--shell-divider);box-shadow:var(--shell-shadow);padding:8px 12px;display:flex;flex-direction:column;gap:2px;color:var(--shell-text)}.project-sidebar h2{font-size:14px;font-weight:600;margin:8px 0}.project-sidebar h3{font-size:13px;font-weight:600;margin:16px 0 4px;color:var(--shell-text-2)}.project-sidebar .ps-row{display:flex;align-items:center;justify-content:flex-start;gap:16px;min-height:56px;padding:0 12px;border-radius:var(--shell-radius);font-size:14px;text-align:left;width:100%}.project-sidebar .ps-row:hover:not(:disabled){background:var(--shell-fill)}.project-sidebar .ps-row.is-active{background:var(--shell-fill-2)}.project-sidebar .ps-row small{margin-left:auto;color:var(--shell-text-3);font-size:11px}.project-sidebar .ps-empty{color:var(--shell-text-3);font-size:12px;margin:4px 12px}.drawings-editor~.tool-chip{z-index:21}.drawing-sheet .da-stroke{fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round}.drawing-sheet .da-fill{fill:#000;stroke:none}.drawing-sheet .da-text text{fill:#000;font-family:SF Mono,Menlo,Consolas,Courier New,monospace;dominant-baseline:alphabetic;white-space:pre}.drawing-sheet .drawing-annotation.is-preview .da-stroke{stroke:var(--shell-accent)}.drawing-sheet .drawing-annotation.is-preview .da-fill,.drawing-sheet .drawing-annotation.is-preview .da-text text{fill:var(--shell-accent)}.drawing-sheet .da-hit{fill:none;stroke:transparent}.drawing-sheet .da-hover{fill:none;stroke:var(--shell-accent-light);stroke-width:1px;stroke-dasharray:4 3}.drawing-sheet .da-selected{fill:#2e68ff10;stroke:var(--shell-accent);stroke-width:1.5px}.drawing-sheet .da-candidate{fill:none;stroke:var(--shell-accent);stroke-width:3px;stroke-linecap:round;opacity:.85}.drawing-sheet .da-candidate-point{fill:var(--shell-accent);stroke:#fff;stroke-width:1px}.drawing-sheet .da-picked{fill:none;stroke:#e8590c;stroke-width:3px;stroke-linecap:round}.drawing-sheet .da-picked-point{fill:#e8590c;stroke:#fff;stroke-width:1px}.drawing-sheet .df-title-block [data-cell].is-editable{cursor:text}.drawing-badges{position:absolute;inset:0;pointer-events:none}.drawing-badge{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;min-width:26px;height:26px;padding:0 8px;border-radius:13px;background:var(--shell-accent)!important;color:#fff;border:2px solid #fff!important;font-size:12px;line-height:1;box-shadow:0 2px 8px #0006;white-space:nowrap}.drawing-badge.is-secondary{background:#2d2d2d!important}.drawing-badge:hover:not(:disabled){background:var(--shell-accent-light)!important}.drawing-text-editor{position:absolute;z-index:26;min-width:160px;padding:6px;background:var(--shell-panel);border:1px solid var(--shell-accent);border-radius:var(--shell-radius);box-shadow:var(--shell-shadow)}.drawing-text-editor textarea,.drawing-text-editor input{display:block;width:240px;min-height:28px;background:#1f1f1f;color:var(--shell-text);border:1px solid var(--shell-divider);border-radius:var(--shell-radius);font:13px Arial,sans-serif;padding:4px 6px;resize:both}.drawing-text-editor .drawing-card-actions{margin-top:6px}.dimension-editor-card{right:344px;top:110px}.dimension-editor-card input[type=text],.dimension-editor-card input[inputmode=decimal]{width:120px;padding:4px 6px;background:#1f1f1f;color:var(--shell-text);border:1px solid var(--shell-divider);border-radius:var(--shell-radius);font-size:12px}.drawing-layers-card{left:50%;top:110px;transform:translate(-50%);width:340px}.drawing-layers-card ul{list-style:none;margin:4px 0;padding:0;max-height:240px;overflow:auto}.drawing-layers-card li{display:flex;align-items:center;gap:8px;padding:3px 0;font-size:12px}.drawing-layers-card li small{margin-left:auto;color:var(--shell-text-3)}.export-format-list{display:flex;flex-direction:column;gap:6px;margin:8px 0}.export-format-row{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:8px 10px;border-radius:var(--shell-radius);background:var(--shell-fill);color:var(--shell-text);text-align:left}.export-format-row small{color:var(--shell-text-3);font-size:11px}.export-format-row:hover:not(:disabled){background:var(--shell-fill-2)}.export-format-row:disabled{opacity:.5}.drawing-import-layers h4{margin:8px 0 2px;font-size:12px;color:var(--shell-text-2)}.drawing-import-layers ul{list-style:none;margin:0;padding:0;max-height:200px;overflow:auto}.drawing-import-layers li{display:flex;gap:8px;padding:3px 0;font-size:12px}.drawing-import-layers li small{margin-left:auto;color:var(--shell-text-3)}.dimension-editor-card input[type=text]{display:block;width:100%;margin:2px 0 6px}.dimension-editor-card .dp-row input{width:90px}.shell-dialog-backdrop.shortcuts-backdrop{z-index:90}.shell-dialog.shortcuts-dialog{width:800px;height:min(680px,calc(100dvh - 48px));padding:0;display:flex;flex-direction:column;overflow:hidden}.shortcuts-header{margin:0;padding:20px 24px 14px;border-bottom:1px solid var(--shell-divider)}.shortcuts-body{flex:1;display:flex;min-height:0}.shortcuts-categories{width:248px;flex:0 0 248px;display:flex;flex-direction:column;padding:2px 0;border-right:1px solid var(--shell-divider);overflow:auto}.shortcuts-categories button{display:flex;align-items:center;justify-content:flex-start;gap:16px;margin:0 4px;padding:8px 12px;border:0;border-radius:var(--shell-radius);background:transparent;color:var(--shell-text);font-size:14px;text-align:left}.shortcuts-categories button .shell-icon{width:30px;height:30px}.shortcuts-categories button.is-selected{background:var(--shell-fill-2)}.shortcuts-content{flex:1;overflow:auto;padding:0 20px 20px}.shortcuts-content h3{margin:16px 0 12px;font-size:14px;font-weight:600;color:var(--shell-text)}.shortcuts-group{margin:4px 0;border:1px solid var(--shell-divider);border-radius:var(--shell-radius);background:var(--shell-fill)}.shortcuts-row{display:flex;align-items:center;gap:12px;min-height:44px;padding:0 16px}.shortcuts-row+.shortcuts-row{border-top:1px solid var(--shell-divider)}.shortcuts-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.shortcuts-box{position:relative;display:inline-flex}.shortcuts-box input{width:150px;min-width:128px;height:30px;box-sizing:border-box;text-align:center;border:1px solid var(--shell-divider);border-radius:var(--shell-radius);background:var(--shell-fill-2);color:var(--shell-text);caret-color:transparent}.shortcuts-box input:focus{outline:2px solid var(--shell-accent);outline-offset:-1px}.shortcuts-box input.is-fixed{color:var(--shell-text-3)}.shortcuts-error{position:absolute;right:calc(100% + 10px);top:50%;transform:translateY(-50%);width:240px;padding:8px 10px;border-radius:var(--shell-radius);background:var(--shell-panel);border:1px solid #e0484888;box-shadow:var(--shell-shadow);font-size:12px;color:var(--shell-text);z-index:2}.shortcuts-actions{margin:0;padding:24px;border-top:1px solid var(--shell-divider);display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.help-flyout{position:fixed;top:52px;right:8px;width:340px;max-height:calc(100dvh - 64px);overflow:auto;z-index:70;background:var(--shell-panel);border:1px solid var(--shell-divider);border-radius:var(--shell-overlay-radius);box-shadow:var(--shell-shadow);color:var(--shell-text);font-size:14px}.help-flyout h2{font-size:14px;font-weight:500;margin:0;padding:12px 12px 4px}.help-section{padding:12px;border-top:1px solid var(--shell-divider)}.help-section:first-of-type{border-top:0}.help-section-title{display:block;font-size:12px;color:var(--shell-text-3);margin-bottom:8px}.help-row-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:8px}.help-row-buttons button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;font-size:12px}.help-flyout button{border:0;border-radius:var(--shell-radius);background:var(--shell-fill-2);color:var(--shell-text);min-height:32px}.help-flyout button:disabled{color:var(--shell-text-disabled)}.help-wide{display:flex;align-items:center;justify-content:flex-start;gap:8px;width:100%;padding:0 10px;margin-top:4px;text-align:left}.help-progress{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:12px;color:var(--shell-text-2)}.help-progress progress{flex:1;height:4px;accent-color:var(--shell-accent)}.help-onboarding-item{display:grid;grid-template-columns:40px 1fr auto;align-items:center;gap:8px;padding:6px 0}.help-onboarding-item .shell-icon{width:40px;height:40px}.help-onboarding-item small{display:block;color:var(--shell-text-3);font-size:12px}.help-onboarding-item .help-done{color:#3fb950;font-weight:700;padding:0 8px}.help-onboarding-item button{padding:0 12px}.shell-dialog-backdrop.onboarding-backdrop{z-index:95;background:#000a}.shell-dialog.onboarding-dialog{width:520px;min-height:380px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;padding:32px}.onboarding-dialog h2{font-size:24px;margin:0}.onboarding-dialog p{margin:0;color:var(--shell-text-2);max-width:400px}.onboarding-dialog .primary,.onboarding-dialog .onboarding-device{min-height:36px;padding:0 18px;border:0;border-radius:var(--shell-radius);background:var(--shell-fill-2);color:var(--shell-text)}.onboarding-dialog .primary{background:var(--shell-accent);color:#fff}.onboarding-devices{display:flex;gap:12px;margin-top:8px}.onboarding-device{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;width:140px;height:110px!important}.onboarding-device .device-glyph{font-size:28px}.onboarding-taps{display:flex;gap:12px}.onboarding-tap{width:160px;height:100px;border:1px dashed var(--shell-divider);border-radius:var(--shell-radius);background:var(--shell-fill);color:var(--shell-text)}.onboarding-tap.is-done{border-style:solid;border-color:#3fb950}.onboarding-loader{width:200px;height:4px;border-radius:2px;background:var(--shell-fill-2);overflow:hidden}.onboarding-loader span{display:block;height:100%;background:var(--shell-accent);animation:onboarding-load 1.6s ease-out forwards}@keyframes onboarding-load{0%{width:0}to{width:100%}}.onboarding-congrats-mark{width:56px;height:56px;border-radius:50%;background:#3fb950;color:#fff;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700}.onboarding-congrats-title{white-space:pre-line}.tutorial-card{position:fixed;left:50%;bottom:24px;transform:translate(-50%);z-index:60;width:min(460px,calc(100vw - 32px));background:var(--shell-panel);border:1px solid var(--shell-divider);border-radius:var(--shell-overlay-radius);box-shadow:var(--shell-shadow);color:var(--shell-text);padding:14px 16px;font-size:14px}.tutorial-progress{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--shell-text-3);margin-bottom:6px}.tutorial-progress-bar{height:3px;border-radius:2px;background:var(--shell-fill-2);margin-bottom:10px;overflow:hidden}.tutorial-progress-bar span{display:block;height:100%;background:var(--shell-accent)}.tutorial-task{font-weight:600;margin:0 0 4px}.tutorial-hint{margin:0;color:var(--shell-text-2);font-size:13px}.tutorial-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}.tutorial-actions button{min-height:30px;padding:0 14px;border:0;border-radius:var(--shell-radius);background:var(--shell-fill-2);color:var(--shell-text)}.tutorial-actions button.primary{background:var(--shell-accent);color:#fff}.tutorial-card[data-step-done=true] .tutorial-task:before{content:"✓ ";color:#3fb950}.shell-dialog.learn-dialog{width:720px;max-height:calc(100dvh - 48px);overflow:auto}.learn-section h3{margin:16px 0 8px}.learn-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.learn-card{display:flex;flex-direction:column;align-items:flex-start;gap:6px;min-height:96px;padding:12px;border:1px solid var(--shell-divider);border-radius:var(--shell-radius);background:var(--shell-fill);color:var(--shell-text);text-align:left;white-space:pre-line}.learn-card:disabled{color:var(--shell-text-disabled)}.learn-card small{color:var(--shell-text-3);font-size:12px;white-space:normal}.loading-overlay{position:fixed;inset:0;z-index:85;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#000a;color:var(--shell-text)}.loading-overlay-ring{width:44px;height:44px;border-radius:50%;border:4px solid var(--shell-fill-2);border-top-color:var(--shell-accent);animation:spin 1s linear infinite}.loading-overlay-tip{position:absolute;bottom:12%;max-width:520px;margin:12px;text-align:center;color:var(--shell-text-2);animation:tip-fade .3s ease-out}@keyframes tip-fade{0%{opacity:0}to{opacity:1}}.dashboard-page{position:fixed;inset:0;z-index:75;display:flex;flex-direction:column;background:var(--shell-titlebar);color:var(--shell-text);font-family:var(--shell-font);font-size:14px}.db-titlebar{height:48px;flex:0 0 48px;display:flex;align-items:center;padding-left:56px}.db-app-title{font-size:12px;color:var(--shell-text-2)}.db-split{position:relative;flex:1;min-height:0;display:flex}.db-hamburger{position:absolute;left:4px;top:6px;width:40px;height:36px;border-radius:var(--shell-radius);z-index:2}.db-hamburger svg{width:16px;height:16px}.db-pane{width:280px;flex:0 0 280px;display:flex;flex-direction:column;padding:50px 4px 2px;overflow:auto;border-right:1px solid var(--shell-divider);border-radius:0 8px 8px 0}.db-search{position:relative;margin:0 4px 12px}.db-search input{width:100%;box-sizing:border-box;height:32px;padding:0 34px 0 10px;border-radius:var(--shell-radius);border:1px solid var(--shell-divider);background:var(--shell-fill);color:inherit}.db-search-icon{position:absolute;right:14px;top:8px;width:16px;height:16px;color:var(--shell-text-2);pointer-events:none}.db-nav-row{display:flex;align-items:center;justify-content:flex-start;gap:12px;width:100%;min-height:36px;padding:0 12px;border-radius:var(--shell-radius);color:var(--shell-text);text-align:left;font-size:14px}.db-nav-row svg{width:16px;height:16px;flex-shrink:0}.db-nav-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.db-nav-row[aria-current=page]{background:var(--shell-fill-2)}.db-nav-row[data-drop-target=true],.db-card[data-drop-target=true],.db-crumb button[data-drop-target=true]{outline:2px solid var(--shell-accent-light);outline-offset:-2px}.db-nav-header{padding:8px 8px 8px 16px;font-size:14px;font-weight:600;line-height:20px}.db-content{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--shell-canvas);border-radius:8px 0 0;border-left:1px solid var(--shell-divider)}.db-commandbar{height:48px;flex:0 0 48px;display:flex;align-items:center;justify-content:space-between;margin-left:48px;padding-right:12px}.dashboard-page .db-split.pane-open .db-commandbar{margin-left:16px}.db-breadcrumb{display:flex;align-items:center;min-width:0;font-size:14px}.db-crumb{display:inline-flex;align-items:center;white-space:nowrap}.db-crumb button{padding:4px 6px;border-radius:var(--shell-radius);color:var(--shell-text-2)}.db-crumb [aria-current=page]{padding:4px 6px;font-weight:600}.db-crumb-sep{width:12px;height:12px;color:var(--shell-text-3)}.db-commands{display:flex;align-items:center;gap:2px}.db-command{width:44px;height:40px;border-radius:var(--shell-radius)}.db-command svg{width:16px;height:16px}.db-command-sep{width:1px;height:20px;background:var(--shell-divider);margin:0 4px}.db-sort{position:relative}.db-menu{position:fixed;min-width:220px;padding:4px;background:var(--shell-panel);border:1px solid 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