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.engineering-check{justify-content:space-between;align-items:center;gap:var(--space-3);display:flex}.engineering-fields input[type=range]{width:100%;accent-color:var(--brand-accent)}.engineering-fields input[type=checkbox]{accent-color:var(--brand-accent)}.engineering-fields button,.engineering-button,.engineering-dialog button{padding:var(--space-2) var(--space-3);border:1px solid var(--border-strong);border-radius:var(--radius-md);background:var(--background);font-size:var(--type-caption);cursor:pointer}.properties-panel.engineering-fields button{background:var(--viewport-background);border-color:var(--border-inverse)}.engineering-fields button:hover,.engineering-button:hover,.engineering-dialog button:hover{background:var(--accent);color:var(--accent-foreground)}button.engineering-primary{background:var(--brand);color:var(--text-inverse);border-color:var(--brand)}.engineering-grid{gap:var(--space-2);grid-template-columns:1fr 1fr;align-items:end;display:grid}.engineering-button,.influence-panel{margin-top:var(--space-4)}.influence-panel p{overflow-wrap:anywhere;margin-block:var(--space-2);color:var(--muted-foreground)}.engineering-feedback{max-width:min(620px,70%);padding:var(--space-2) var(--space-3);background:var(--viewport-icon-surface);color:var(--viewport-foreground);border:1px solid var(--border-inverse);border-radius:var(--radius-md);font-size:var(--type-caption);pointer-events:none;z-index:6;position:absolute;bottom:70px;left:18px}.engineering-overlay{background:var(--navy-900);position:fixed;inset:0}@supports (color:color-mix(in lab, red, red)){.engineering-overlay{background:color-mix(in srgb, var(--navy-900) 74%, transparent)}}.engineering-overlay{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:30}.engineering-dialog{overscroll-behavior:contain;border:1px solid var(--border-strong);border-radius:var(--radius-xl);background:var(--card);width:min(680px,94vw);max-height:min(780px,92dvh);color:var(--card-foreground);box-shadow:var(--shadow-lg);z-index:31;font-size:var(--type-caption);flex-direction:column;display:flex;position:fixed;top:50%;left:50%;overflow:auto;transform:translate(-50%,-50%)}.engineering-dialog>*{flex-shrink:0}.engineering-dialog-head{z-index:2;padding:var(--space-4);border-bottom:1px solid var(--border);background:var(--card);font-weight:var(--weight-semibold);font-size:var(--type-h4);justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.engineering-dialog-head button{border:0;padding:3px 8px;font-size:20px}.engineering-intro,.engineering-section{margin:var(--space-3) var(--space-4);line-height:var(--leading-relaxed)}.engineering-section h3{font-weight:var(--weight-semibold)}.engineering-range{align-items:end;gap:var(--space-2);margin:var(--space-3) var(--space-4);flex-wrap:wrap;display:flex}.engineering-range label{width:120px}.engineering-range>span{padding-bottom:var(--space-3)}.engineering-table-wrap{margin:0 var(--space-4);border:1px solid var(--border);border-radius:var(--radius-md);max-height:360px;overflow:auto}.engineering-table-wrap table{border-collapse:collapse;width:100%;font-size:var(--type-caption)}.engineering-table-wrap th,.engineering-table-wrap td{padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--border);text-align:left}.engineering-table-wrap th{background:var(--secondary);z-index:1;position:sticky;top:0}.engineering-table-wrap tr:nth-child(2n){background:var(--muted)}.engineering-message{margin:var(--space-3) var(--space-4);min-height:18px;color:var(--destructive);overflow-wrap:anywhere}.engineering-dialog-actions{z-index:2;justify-content:flex-end;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-top:1px solid var(--border);background:var(--card);display:flex;position:sticky;bottom:0}.color-legend{width:296px;padding:var(--space-3) var(--space-4);border:1px solid var(--border-inverse);border-radius:var(--radius-lg);background:var(--viewport-icon-surface);color:var(--viewport-foreground);z-index:4;box-shadow:var(--shadow-lg);font-size:11px;position:absolute;bottom:18px;right:18px}.color-legend p{margin-top:var(--space-1);color:var(--viewport-muted);line-height:var(--leading-relaxed)}.legend-heading{justify-content:space-between;gap:var(--space-3);font-size:var(--type-caption);overflow-wrap:anywhere;display:flex}.engineering-color-bar{border-radius:var(--radius-xs);height:13px;margin:10px 0 5px}.legend-range{justify-content:space-between;display:flex;position:relative}.legend-zero{position:absolute;transform:translate(-50%)}.selection-influence{margin-top:var(--space-4);padding-top:var(--space-3);border-top:1px solid var(--border-inverse);line-height:var(--leading-relaxed);overflow-wrap:anywhere}.numbering-panel .numbering-modes button[aria-pressed=true]{background:var(--brand);color:var(--text-inverse)}.properties-panel .properties-heading>button{background:0 0;border:0;padding:3px 8px;font-size:20px;line-height:1}@media (width<=750px){.header-version{text-align:right;max-width:130px;font-size:10px}.numbering-panel{max-height:65%;top:144px}.color-legend{width:230px;bottom:70px}.engineering-grid{grid-template-columns:1fr}}.model-status{margin-top:var(--space-3);color:var(--primary);font-size:var(--type-caption);overflow-wrap:anywhere}.model-status-error{color:var(--destructive)}.display-fields{gap:var(--space-3);margin-top:var(--space-4);font-size:var(--type-caption);display:grid}.display-fields label{justify-content:space-between;align-items:center;display:flex}input[type=color]{width:var(--space-12);height:var(--space-8);border:1px solid var(--border);cursor:pointer}.model-info{margin-top:var(--space-4);padding:var(--space-3);border:1px solid var(--border);border-radius:var(--radius-md);font-size:var(--type-caption);line-height:var(--leading-relaxed);background:var(--background)}.model-info p{column-gap:var(--space-2);overflow-wrap:anywhere;flex-wrap:wrap;display:flex}.model-actions{gap:var(--space-2);margin-top:var(--space-4);grid-template-columns:1fr 1fr;display:grid}.model-actions button{border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-2);background:var(--background);font-size:var(--type-caption)}.model-actions button:hover{background:var(--accent)}.support-note{margin-top:var(--space-4);font-size:var(--type-caption);color:var(--muted-foreground);line-height:var(--leading-relaxed)}.viewer-hint{width:fit-content;padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--type-caption);color:var(--viewport-muted);background:var(--viewport-background);pointer-events:none;position:absolute;bottom:18px;left:18px;right:18px}.influence-animation{margin-top:var(--space-4)}.influence-animation h3{font-size:var(--type-caption);margin-bottom:var(--space-2);font-weight:600}.influence-animation canvas{border-radius:var(--radius-sm);width:100%;height:auto;margin-top:var(--space-2);display:block}.animation-readout{min-height:var(--space-8)}.animation-chain{contain:layout paint;border:1px solid var(--border);border-radius:var(--radius-sm);max-height:150px;position:relative;overflow:auto}.animation-chain table{border-collapse:collapse;width:100%;font-size:10px}.animation-chain th,.animation-chain td{padding:var(--space-1);white-space:nowrap;text-align:left}.animation-chain th{background:var(--card);position:sticky;top:0}.animation-chain td{font-family:var(--font-family-mono)}.animation-chain .active{background:var(--accent);color:var(--accent-foreground)}.properties-panel{width:280px;padding:var(--space-4);border:1px solid var(--border-inverse);border-radius:var(--radius-lg);background:var(--viewport-icon-surface);color:var(--viewport-foreground);box-shadow:var(--shadow-lg);font-size:var(--type-caption);z-index:4;position:absolute;top:72px;right:18px}.properties-heading{justify-content:space-between;align-items:center;gap:var(--space-2);margin-bottom:var(--space-3);font-weight:var(--weight-semibold);display:flex}.properties-panel label{gap:var(--space-2);margin-block:var(--space-4);display:grid}.properties-panel input{padding:var(--space-2);border:1px solid var(--border-inverse);border-radius:var(--radius-sm);background:var(--viewport-background)}.coordinate-grid{gap:var(--space-2);display:grid}.coordinate-grid>div{grid-template-columns:var(--space-6) 1fr;gap:var(--space-3);display:grid}.property-note{margin-top:var(--space-4);color:var(--viewport-muted)}.element-label-layer{pointer-events:none;z-index:2;position:absolute;inset:0;overflow:hidden}.element-tag{border:1px solid var(--border-inverse);border-radius:var(--radius-xs);background:var(--viewport-icon-surface);color:var(--viewport-foreground);font:var(--weight-semibold) 11px var(--font-family-mono);white-space:nowrap;padding:2px 5px;position:absolute;transform:translate(8px,-100%)}.element-tag.selected{background:var(--brand);color:var(--text-inverse)}.viewport-empty-icon{width:var(--space-16);height:var(--space-16);margin:0 auto var(--space-6);border:1px solid var(--border-inverse);border-radius:var(--radius-xl);background:var(--viewport-icon-surface);color:var(--viewport-icon);place-items:center;display:grid}@media (width<=750px){.app-shell{height:auto;min-height:100dvh}.app-workspace{grid-template-rows:auto minmax(460px,1fr);grid-template-columns:minmax(0,1fr)}.app-sidebar{border-right:0;border-bottom:1px solid var(--border);height:312px}.sidebar-section{min-height:auto;padding-block:var(--space-4)}.viewport-stage{min-height:460px}.viewer-toolbar{right:18px}.viewer-switches{top:100px}.properties-panel{top:144px}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}