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6px}.toast-stack{position:absolute;right:20px;top:125px;z-index:50;display:flex;flex-direction:column;gap:8px;pointer-events:none;max-width:320px}.toast{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:12px 15px;box-shadow:0 6px 30px #0002;font-size:11px;line-height:1.6;animation:toast-in .2s ease-out}.toast.error{border-left:3px solid #cd674f}.toast.success{border-left:3px solid #699b7c}.drop-target{position:absolute;inset:12px;background:#1b2734f5;z-index:80;border:2px dashed #e87650;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#dfe7ed;pointer-events:none}.drop-target .icon{width:48px;height:48px;color:var(--accent)}.drop-target h2{font-weight:500;font-size:22px;margin:18px 0 3px}.drop-target p{font-size:12px;color:#99aab8}dialog{padding:0;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);box-shadow:0 30px 100px #0005;width:560px;max-width:calc(100vw - 30px);max-height:85vh;overflow:auto}dialog::backdrop{background:#111c2a80;backdrop-filter:blur(4px)}.dialog-heading{height:70px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 25px}.dialog-heading h2{font-size:17px;letter-spacing:-.3px;font-weight:600}#dialogBody{padding:22px 25px;font-size:12px;line-height:1.8;color:var(--subtle)}#dialogBody p:first-child{margin-top:0}#dialogBody p:last-child{margin-bottom:0}#dialogActions{padding:0 25px 23px;display:flex;gap:9px;justify-content:flex-end}.dialog-field{display:flex;flex-direction:column;gap:6px;margin:13px 0}.dialog-field>label{font-size:10px;color:var(--muted)}.dialog-field input,.dialog-field select,.dialog-field textarea{width:100%;font-size:12px}.dialog-field textarea{height:100px;resize:vertical}.dialog-note{font-size:10px;color:var(--muted);margin:14px 0}.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}.help-row{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:6px 0;font-size:10px}.help-row kbd{font-family:ui-monospace,monospace;font-size:9px;color:var(--accent);font-weight:600}.dialog-hero{display:flex;gap:15px;align-items:center;margin-bottom:20px}.dialog-hero .brand-mark{height:44px;width:40px}.dialog-hero h3{font-size:25px;margin:0;letter-spacing:-1px;color:var(--text)}.dialog-hero p{font-size:10px;margin:0;color:var(--muted)}.import-report{font:10px ui-monospace,monospace;padding:15px;background:var(--surface-2);border:1px solid var(--line);border-radius:5px;line-height:1.8;max-height:200px;overflow:auto}.import-warning{padding:8px 0;border-bottom:1px solid var(--line);font-size:11px}.light-canvas .viewport-title{color:#384e5a}.light-canvas .viewport-kicker{color:#83909a}.light-canvas .compass-ring button{background:#fff;color:#64737e;border-color:#bbc4ca}.light-canvas .navigation-bar{background:#fff;border-color:#d2d9df}.light-canvas .navigation-bar button{color:#5e6e7a}.light-canvas .navigation-bar button:hover{background:#eef1f3}.light-canvas .ucs{filter:brightness(.5)}@keyframes toast-in{from{transform:translateY(-7px);opacity:0}to{transform:translateY(0);opacity:1}}@media(min-width:1750px){body{--panel-width:238px;--right-width:266px}.tool-group{padding:0 19px}.tool-button{min-width:50px}.layer-name{font-size:10px}.layer-row{height:40px}.topbar{height:68px;min-height:68px}}@media(max-width:1250px){.right-panel{display:none}.right-panel.force-open{display:flex;position:absolute;right:0;top:0;bottom:0;box-shadow:-8px 0 30px #0002}.save-state{display:none}.topbar{gap:15px}.tool-group{padding:0 10px}.ribbon-meta{display:none}}@media(max-width:950px){.left-panel{width:188px}.breadcrumb>span:first-child,.breadcrumb>.tiny-icon,.top-open,.top-divider.short{display:none}.brand{min-width:145px}.brand-name{font-size:21px}.coordinates{display:none}.statusbar{gap:4px}.model-tabs{padding-left:10px}.command-suggestion{display:none}.viewport-title>div{font-size:10px}.viewport-subtle{display:none}.ribbon{padding-left:11px}.top-actions{gap:4px}.layer-row{padding-left:10px;gap:6px}.layer-name{font-size:8px}.layer-state button{width:18px}.panel-bottom-note{display:none}.layer-list{max-height:calc(100% - 115px)}}@media(max-width:700px){.topbar{height:55px;min-height:55px;padding:0 12px;gap:8px}.brand{min-width:0}.brand-name{font-size:19px}.brand-tag{font-size:5.5px;letter-spacing:1.5px}.brand-mark{width:26px;height:30px}.brand>.tiny-icon,.top-divider,.breadcrumb,.avatar{display:none}.top-actions>.icon-button[data-action=save]{display:none}.top-actions{gap:4px}.primary-button{font-size:10px;padding:0 9px;height:30px}.ribbon-tabs{height:33px;min-height:33px;padding:0 16px}.ribbon-tab-list{gap:26px}.ribbon-tab{font-size:10px}.ribbon{height:78px;min-height:78px;padding-top:5px}.tool-button{font-size:8px;min-width:39px;gap:3px;padding:4px}.tool-button .icon{width:18px;height:18px}.tool-group{padding:0 9px}.group-caption{font-size:7px}.tool-small{font-size:9px;padding:3px}.activity-rail{width:44px;padding:10px 5px}.rail-button{width:33px;height:34px}.rail-button .icon{width:18px;height:18px}.left-panel{display:none}.left-panel.force-open{display:flex;position:absolute;left:44px;top:0;bottom:0;width:218px;box-shadow:8px 0 30px #0003}.right-panel.force-open{width:240px}.command-panel{left:11px;right:11px;bottom:12px}.command-input-row{height:36px}.command-prompt{gap:8px;height:28px;padding:0 9px}.command-prompt>span:nth-child(2){font-size:8px}.command-prompt>span:first-child{font-size:7px}.command-input-row input{font-size:11px}.viewport-title{left:15px;top:15px}.viewport-kicker{font-size:7px}.viewport-title>div{font-size:9px}.view-controls{right:10px;top:12px;transform:scale(.8);transform-origin:top right}.navigation-bar{right:10px;bottom:128px}.navigation-bar button{height:29px;width:25px}.ucs{left:16px;bottom:117px;width:43px;height:48px}.canvas-hint{font-size:7px;bottom:95px}.statusbar{height:30px;min-height:30px;padding-right:8px;gap:2px}.model-tabs{padding:0 5px;gap:0}.model-tab{padding:0 9px;font-size:8px}.model-tab[data-action=paper-view],.new-document-tab{display:none}.status-tools{gap:0}.status-tool{padding:3px 5px}.status-tool span:last-child{display:none}.status-tool .icon{height:13px;width:13px}.status-divider{margin:0 6px}.units-button{font-size:7px}.engine-badge{font-size:7px}.frame-metric{display:none}.toast-stack{max-width:250px;right:10px;top:110px}.toast{font-size:10px;padding:10px}.help-grid{grid-template-columns:1fr}.layer-name{font-size:9px}}