:root{font-family:Arial,Helvetica,sans-serif;color:#161616;background:#fff;font-synthesis:none;--ink:#161616;--muted:#60656d;--line:#e4e6e9;--blue:#245cdb;--blue-light:#edf3ff;--surface:#f7f8fa;font-size:13px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;border:0;background:none}button:disabled{opacity:.45;cursor:not-allowed}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,svg:focus-visible{outline:2px solid var(--blue);outline-offset:3px}button svg,a svg{width:16px;height:16px;stroke-width:1.7}input,select{min-width:0}input[type=number]{appearance:textfield;-moz-appearance:textfield}input::-webkit-inner-spin-button{appearance:none}input[type=checkbox]{accent-color:var(--blue)}.hidden{display:none!important}.app-header{height:64px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;gap:24px}.brand{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:700;letter-spacing:-.5px}.brand-symbol{width:18px;height:19px;display:grid;grid-template-columns:1fr 1fr;gap:2px}.brand-symbol i{border:1.5px solid currentColor}.brand-symbol i:first-child{grid-column:1/3}.header-note{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:24px}.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}.save-state{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted)}.status-dot{width:5px;height:5px;background:#525965;border-radius:50%}.btn{display:inline-flex;gap:7px;justify-content:center;align-items:center;font-size:12px;font-weight:500;white-space:nowrap;padding:9px 13px;border-radius:4px;min-height:36px;text-decoration:none;line-height:1.3}.btn:hover{background:#f2f3f5}.btn.primary{background:#161616;color:#fff;border:1px solid #161616}.btn.primary:hover{background:#353535}.btn.outline{border:1px solid #d7dade;background:#fff}.btn.outline:hover{border-color:#9298a2;background:#f9fafb}.btn.quiet{color:var(--muted)}.btn.small{padding:7px 11px;min-height:32px}.btn.icon-only{padding:7px;width:32px;min-height:32px}.tiny{width:12px!important;height:12px!important}.workspace-heading{display:flex;align-items:center;justify-content:space-between;padding:22px 28px;gap:16px}.project-title{display:flex;align-items:center;gap:10px;min-width:0}.project-title input{font-size:22px;letter-spacing:-.5px;font-weight:600;color:var(--ink);border:0;background:none;padding:0;width:280px;text-overflow:ellipsis;border-radius:0}.project-title>svg{width:13px;height:13px;color:#6b7280}.heading-actions{display:flex;align-items:center;gap:9px}.count{background:#f1f2f4;border:1px solid var(--line);color:#5c626d;font-size:10px;font-weight:400;padding:2px 5px;line-height:1.2;border-radius:3px}.app-layout{margin:0 28px;display:grid;grid-template-columns:216px minmax(300px,1fr) 264px;height:clamp(620px,calc(100dvh - 190px),780px);border:1px solid var(--line);overflow:hidden;background:#fff}.left-panel,.right-panel{background:#fff;display:flex;flex-direction:column;min-height:0;overflow-y:auto}.left-panel{border-right:1px solid var(--line)}.right-panel{border-left:1px solid var(--line)}.panel-tabs{display:flex;padding:0 17px;gap:22px;border-bottom:1px solid var(--line);min-height:49px;align-items:stretch}.panel-tabs button{font-size:12px;color:var(--muted);position:relative;padding:0}.panel-tabs button.active{color:var(--ink);font-weight:600}.panel-tabs button.active:after{content:'';height:2px;background:var(--ink);position:absolute;bottom:0;left:0;right:0}.panel-tabs button span{font-size:10px;color:#6b7280;margin-left:5px}.panel-content{padding:22px 17px}.section-label{font-size:11px;font-weight:600;display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;color:#3d4249}.section-label .step{display:none}.field-label{display:block;font-size:11px;color:var(--muted);margin-bottom:7px}.select-field{width:100%;background:#fff;border:1px solid #d8dce1;border-radius:3px;color:#24282e;font-size:11px;padding:9px 7px;min-height:34px}.subtle-note{font-size:10px;line-height:1.7;color:#6b7280;margin:9px 0 0}.divider{height:1px;background:var(--line);margin:20px 0}.preset-layouts{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.layout-preset{border:1px solid #dfe2e7;border-radius:3px;padding:8px 3px 6px;display:flex;flex-direction:column;align-items:center;gap:6px;color:#6b7280;font-size:10px}.layout-preset.active{border-color:var(--blue);background:var(--blue-light);color:var(--blue)}.grid-icon{width:21px;height:21px;display:grid;gap:2px}.grid-icon i{border:1px solid 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a{font-size:11px;display:flex;align-items:center;justify-content:space-between;color:#313944}.left-bottom a svg{width:13px;height:13px}.left-bottom p{font-size:10px;color:#6b7280;line-height:1.6;margin:6px 0 0}.design-area{display:flex;flex-direction:column;min-width:0;background:var(--surface);position:relative}.canvas-topbar{display:flex;align-items:center;min-height:49px;padding:0 14px;border-bottom:1px solid var(--line);background:#fff;gap:10px}.view-switch{display:flex;gap:2px}.view-switch button{font-size:11px;display:flex;align-items:center;gap:6px;padding:7px 9px;color:#6b7280;border-radius:3px}.view-switch button svg{width:14px;height:14px}.view-switch button.active{background:#f0f1f3;color:#151515}.canvas-meta{font-size:10px;color:#6b7280;margin-left:auto;white-space:nowrap}.dot-separator{margin:0 6px}.canvas-wrap{flex:1;min-height:360px;overflow:hidden;position:relative;background:#f8f9fb}#board-canvas{width:100%;height:100%;display:block;position:absolute;inset:0;touch-action:none;outline-offset:-2px}#board-canvas.draw{cursor:crosshair}.tool-rail{position:absolute;left:13px;top:14px;display:flex;flex-direction:column;padding:3px;border:1px solid #dadee5;border-radius:4px;background:#fff;z-index:2;gap:2px}.tool{padding:7px;border-radius:3px;width:30px;height:30px;display:flex;align-items:center;justify-content:center;color:#697383}.tool:hover{background:#f3f4f6}.tool.active{color:var(--blue);background:var(--blue-light)}.tool svg{width:15px;height:15px}.tool-divider{display:block;width:17px;height:1px;background:var(--line);margin:3px 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span:last-child{margin-left:auto;font-size:10px;color:#6b7280}.canvas-empty{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);text-align:center;background:#fff;border:1px solid #dce1e9;padding:25px 30px;white-space:nowrap}.canvas-empty h2{font-size:18px;letter-spacing:-.4px;margin:0 0 10px}.canvas-empty p{font-size:12px;color:#6b7280;line-height:1.8;margin-bottom:20px}.nothing-selected{padding:28px 17px;color:#6b7280;font-size:12px;line-height:1.8;text-align:center}.nothing-selected svg{width:28px;height:28px;margin:14px;color:#6b7280}.nothing-selected h3{font-size:15px;color:#424e60}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);opacity:0;pointer-events:none;z-index:15;background:#161616;color:#fff;font-size:12px;padding:12px 18px;border-radius:4px;max-width:90vw;text-align:center}.toast.show{opacity:1}dialog{padding:0;border:1px solid #cfd5df;border-radius:5px;background:#fff;color:#1e2735;max-width:640px;width:calc(100% - 32px);max-height:85dvh}dialog::backdrop{background:#10182766}.eyebrow{font-size:10px;letter-spacing:.5px;color:#6b7280;margin-bottom:6px}.modal-header{padding:22px 25px 18px;display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid var(--line)}.modal-header h2{font-size:21px;letter-spacing:-.4px;margin:3px 0 0}.modal-header p{font-size:12px;color:#6b7280;line-height:1.7;margin:9px 0 0}.modal-body{padding:20px 25px}.modal-body p{font-size:12px;line-height:1.8;color:#6a7688}.modal-body a{color:var(--blue);text-decoration:underline}.modal-body h3{font-size:13px;margin:22px 0 8px}.modal-footer{padding:16px 25px;border-top:1px solid var(--line);display:flex;gap:9px;justify-content:flex-end;flex-wrap:wrap}.modal-note{font-size:11px!important;color:#6b7280!important;background:#f7f8fa;padding:12px;border-left:2px solid #cbd2df}.export-item{display:flex;align-items:center;gap:11px;padding:13px 0;border-bottom:1px solid var(--line)}.export-item input{width:14px;height:14px}.export-item .swatch{width:26px;height:28px;border:1px solid #aeb8c8;background:#f0f2f6}.export-item strong{display:block;font-size:12px;font-weight:500}.export-item small{display:block;font-size:10px;color:#6b7280;margin-top:4px}.export-item>span:last-child{margin-left:auto;font-size:10px;color:#6b7280}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.guide-step{display:flex;gap:15px;margin-bottom:22px}.guide-step .num{font-size:17px;color:#6b7280;min-width:23px}.guide-step h3{margin:1px 0 5px;font-size:13px}.guide-step p{margin:0;font-size:12px}.key{display:inline-flex;border:1px solid #d9dfe9;border-bottom-width:2px;border-radius:3px;font-size:10px;padding:1px 5px;min-width:18px;text-align:center;color:#6b7280;background:#fff}.mount-coords{font-size:11px;width:100%;border-collapse:collapse}.mount-coords th,.mount-coords td{text-align:left;padding:9px;border-bottom:1px solid var(--line)}.mount-coords th{color:#6b7280;font-size:10px;font-weight:500}#three-container{position:absolute;inset:0;background:#f8f9fb}#three-container canvas{width:100%;height:100%;display:block}.sources-list{padding-left:18px;font-size:12px;line-height:1.8;color:#6b7280}.sources-list li{margin-bottom:12px}.downloads-section{margin:40px 28px 0;scroll-margin-top:24px}.downloads-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-bottom:22px;border-bottom:1px solid var(--line)}.downloads-heading h2{font-size:21px;font-weight:600;letter-spacing:-.4px;margin:0;display:flex;align-items:center;gap:10px}.downloads-heading p{font-size:12px;color:#6b7280;margin:9px 0 0;line-height:1.6}.file-group-heading{display:flex;justify-content:space-between;align-items:baseline;gap:15px;margin:29px 0 12px}.file-group-heading h3{font-size:13px;margin:0;font-weight:600}.file-group-heading span{font-size:11px;color:#6b7280}.file-table{width:100%;border-collapse:collapse;text-align:left;table-layout:fixed}.file-table th{font-size:10px;font-weight:400;color:#6b7280;padding:10px 13px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fafbfc}.file-table th:first-child{width:44%}.file-table th.file-details-col{width:31%}.file-table th.file-quantity-col{width:10%}.file-table th.file-action-col{width:15%;text-align:right}.file-table td{padding:14px 13px;border-bottom:1px solid var(--line);vertical-align:middle;font-size:12px}.file-table tr.is-selected td{background:#f1f5ff}.file-name{padding:0;text-align:left;display:flex;align-items:center;gap:8px;font-weight:500;font-size:12px;color:#252d39;max-width:100%}.file-name:hover{color:var(--blue)}.file-name svg{width:14px;height:14px;flex-shrink:0;color:#6b7280}.file-filename{display:block;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10px;color:#6b7280;margin-top:5px;overflow-wrap:anywhere;line-height:1.6}.file-detail{font-size:11px;color:#6b7280;line-height:1.6}.file-detail small{display:block;font-size:10px;color:#6b7280;margin-top:4px}.file-quantity{font-size:11px;color:#6b7280}.file-action{text-align:right}.file-action .btn{font-size:11px;padding:7px 11px;min-height:32px}.file-action svg{width:13px;height:13px}.file-status{font-size:10px;color:#6b7280;display:block;margin-top:5px}.file-status.error{color:#aa3030}.file-inline-note{color:#6b7280;font-size:11px;margin:13px 0;line-height:1.7}.file-mobile-details{display:none}.download-notes{margin-top:24px;border-top:1px solid var(--line);padding:17px 0;display:flex;justify-content:space-between;align-items:center;gap:15px;color:#6b7280;font-size:10px;line-height:1.7}.download-notes>div{display:flex;align-items:center;gap:18px}.download-notes button{padding:0;font-size:10px;color:#576475}.download-notes a{color:#576475}.download-notes button:hover,.download-notes a:hover{text-decoration:underline}.file-empty{padding:22px 13px;border-bottom:1px solid var(--line);color:#6b7280;font-size:12px}.app-footer{display:flex;align-items:center;justify-content:space-between;margin:30px 28px 24px;padding-top:18px;border-top:1px solid var(--line);font-size:10px;color:#6b7280;gap:20px}.hardware-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.hardware-card{padding:15px;border:1px solid var(--line)}.hardware-card svg{width:100%;height:60px;color:#6b7280}.hardware-card h3{font-size:12px}.hardware-card p{font-size:11px}.hardware-license{font-size:10px;color:#6b7280}.hardware-card .btn{margin-top:10px}
@media(min-width:1600px){.app-layout{grid-template-columns:230px minmax(300px,1fr) 280px}.panel-content,.inspector-content{padding:22px}.app-header,.workspace-heading{padding-left:36px;padding-right:36px}.app-layout,.downloads-section{margin-left:36px;margin-right:36px}}
@media(max-width:1180px){.app-layout{grid-template-columns:190px minmax(270px,1fr) 235px;margin:0 20px}.workspace-heading,.app-header{padding-left:20px;padding-right:20px}.panel-content,.inspector-content{padding:16px 13px}.inspector-header{padding:17px 13px}.toggle-group{gap:10px}.text-toggle{font-size:9px;gap:4px}.mm-label{display:none}.downloads-section{margin:32px 20px 0}.canvas-meta{font-size:9px}.file-table th:first-child{width:40%}.file-table th.file-action-col{width:19%}}
@media(max-width:960px){.app-layout{grid-template-columns:170px minmax(230px,1fr) 220px}.header-note{display:none}.project-title input{width:245px;font-size:21px}.canvas-meta{display:none}.canvas-topbar>.btn{margin-left:auto}.text-toggle svg{display:none}.canvas-bottom{padding:0 10px}.toggle-group{gap:9px}.switch{width:16px}.on .switch:before{left:8px}.canvas-legend{font-size:9px}.file-table th:first-child{width:39%}.file-table th.file-details-col{width:29%}.file-table th.file-action-col{width:22%}}
@media(max-width:760px){.app-header{height:57px;padding:0 16px;gap:9px}.brand{font-size:18px}.header-actions{gap:7px}.save-state{display:none}.header-actions>.btn.quiet{font-size:11px;padding:7px}.workspace-heading{padding:17px 16px;align-items:center}.project-title input{font-size:18px;width:180px}.project-title>svg{display:none}.heading-actions{gap:7px}.heading-actions .btn{font-size:10px;padding:8px;min-height:32px}.heading-actions .btn svg{width:13px;height:13px}.heading-actions .count{display:none}.app-layout{height:auto;display:flex;flex-direction:column;margin:0 12px}.left-panel{border-right:0;border-bottom:1px solid var(--line);overflow:visible;display:block;order:1}.panel-tabs{display:none}.panel-content{padding:12px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}.panel-content .section-label,.panel-content .subtle-note,.panel-content .divider,.panel-content .board-list,.panel-content .field-label,.panel-content .add-board-actions,.panel-content>.inline-row,.panel-note{display:none}.panel-content>.select-field{width:130px;font-size:10px;padding:7px;min-height:32px}.preset-layouts{display:flex;margin-left:auto;gap:5px}.layout-preset{padding:6px;width:37px;font-size:9px;gap:3px}.grid-icon{width:16px;height:16px}.left-bottom{display:none}.design-area{order:2;min-height:470px;height:62dvh}.canvas-wrap{min-height:330px}.canvas-topbar{min-height:45px;padding:0 10px}.canvas-bottom{min-height:40px;justify-content:center}.toggle-group{gap:15px}.text-toggle{font-size:10px}.canvas-controls{right:10px;bottom:10px}.canvas-legend{left:11px;bottom:53px;font-size:9px}.tool-rail{left:10px;top:11px}.right-panel{order:3;border-left:0;border-top:1px solid var(--line);overflow:visible}.inspector-header{padding:15px}.inspector-content{padding:15px;display:grid;grid-template-columns:1fr 1fr;gap:0 17px}.shelf-preview{grid-row:1/3;height:95px}.shelf-label{margin:0 0 14px;font-size:16px;grid-column:2}.inspector-content>.field-grid{grid-column:2}.inspector-content>.divider{grid-column:1/-1;margin:15px 0}.inspector-content>.section-label,.inspector-content>.field-sublabel,.inspector-content>.mount-card,.inspector-content>.mount-detail,.inspector-content>.issue,.inspector-content>.export-shelf-btn,.inspector-content>.shelf-actions,.inspector-content>.select-field{grid-column:1/-1}.inspector-content>.section-label{margin-bottom:10px}.inspector-content>.field-grid.position-grid{grid-column:1/-1}.inspector-bottom{padding:0 15px 15px;border:0}.downloads-section{margin:32px 12px 0}.downloads-heading{padding:0 3px 19px;gap:10px;align-items:flex-start}.downloads-heading h2{font-size:19px}.downloads-heading p{font-size:11px;max-width:235px}.downloads-heading>.btn{font-size:10px;padding:8px;min-height:33px}.downloads-heading>.btn svg{display:none}.file-group-heading{padding:0 3px;align-items:center}.file-group-heading span{font-size:10px}.file-table th.file-details-col,.file-table th.file-quantity-col,.file-table td.file-details-col,.file-table td.file-quantity-col{display:none}.file-table th:first-child{width:auto}.file-table th.file-action-col{width:105px}.file-table td,.file-table th{padding-left:9px;padding-right:9px}.file-table td{padding-top:13px;padding-bottom:13px}.file-name{font-size:11px;gap:6px}.file-name svg{width:12px;height:12px}.file-filename{font-size:9px;margin-top:5px}.file-mobile-details{display:block;font-size:10px;color:#6b7280;margin-top:5px;line-height:1.5}.file-action .btn{font-size:10px;padding:7px 9px}.file-action .btn svg{width:12px;height:12px}.download-notes{flex-direction:column;align-items:flex-start;gap:11px;padding-left:3px}.download-notes>div{gap:19px}.app-footer{font-size:9px;margin:20px 15px;align-items:flex-start;line-height:1.6}.modal-header{padding:20px}.modal-body{padding:18px 20px}.modal-footer{padding:15px 20px}.modal-header h2{font-size:19px}.settings-grid{gap:13px}.canvas-empty{padding:20px;white-space:normal;width:235px}.canvas-empty h2{font-size:17px}.canvas-empty p{font-size:11px}.hardware-grid{grid-template-columns:1fr}}
@media(max-width:420px){.project-title input{width:135px;font-size:17px}.heading-actions .btn.primary{font-size:0;gap:0;width:34px;padding:8px}.heading-actions .btn.primary svg{width:15px;height:15px}.file-filename{font-size:8.5px}.file-name{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

@media(max-width:760px){.inspector-content{display:block}.shelf-preview{display:none}.shelf-label{margin:0 0 12px}.export-shelf-btn{margin-top:0}.inspector-content>.field-grid{display:grid}}