:root{--bg: #0f1319;--surface: #171c24;--surface-2: #1e242e;--line: #2b323d;--text: #e6eaf0;--muted: #97a1b0;--accent: #4da3ff;--accent-2: #6ee7b7;--alu: #9aa7b6;--alu-dark: #6f7c8c;--glass: #2a4f6b;--danger: #ff8a5b;--radius: 10px;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}h1,h2,h3{margin:0;font-weight:600}.app{min-height:100vh;display:flex;flex-direction:column}.shell{display:flex;min-height:100vh}.rail{width:76px;flex:0 0 76px;background:#0c1016;border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:stretch;padding:12px 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9px;margin-bottom:6px;background:var(--surface-2);border:1px solid var(--line);border-radius:8px}.pos-row.on{border-color:var(--accent)}.pos-name{flex:1;min-width:0;background:none;border:0;color:var(--text);text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:2px}.pos-name strong{font-size:13px}.pos-name em{font-style:normal;font-size:10.5px;color:var(--muted);font-variant-numeric:tabular-nums}.sub-head{font-size:12.5px;color:var(--muted);margin:16px 0 8px;font-weight:600}.acc-row.off{opacity:.55}.acc-row.off .acc-name{text-decoration:line-through}.acc-body{padding:4px 11px 12px;border-top:1px solid var(--line)}.field-input.bad{border-color:var(--danger)}.img-picker{margin-bottom:10px}.img-slot{display:flex;align-items:center;gap:8px}.img-slot img{width:76px;height:42px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:6px;padding:2px}.thumb{display:block;width:62px;height:32px;object-fit:contain;background:#fff;border-radius:4px;padding:2px}.thumb.empty{background:#232a34;border:1px dashed var(--line)}.formula-cell{font-family:Consolas,monospace;font-size:11.5px;color:var(--accent);background:#12161d;padding:2px 6px;border-radius:4px}.vars summary{cursor:pointer;font-size:12px;color:var(--muted);padding:4px 0}.vars-table{width:100%;font-size:11px;margin-top:6px}.vars-table td{padding:3px 6px;border-bottom:1px solid #232a34}.mono-cell{font-family:Consolas,monospace;color:var(--accent);white-space:nowrap}.infill-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}.infill-grid .chip{padding:9px 6px;line-height:1.3}.hint{font-size:11.5px;color:var(--muted);line-height:1.55;margin:10px 0 0}.hint.mono{font-family:Consolas,monospace;background:var(--surface-2);padding:8px 10px;border-radius:6px}.elevation-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:8px;overflow-x:auto}.elevation{display:block;margin:0 auto;background:#12161d;border-radius:8px}.mullion{fill:var(--alu);stroke:var(--alu-dark);stroke-width:.8}.transom{fill:var(--alu-dark);stroke:#5b6675;stroke-width:.8}.glass{fill:var(--glass);fill-opacity:.55;stroke:#3d6a8c;stroke-width:.6}.glass-hatch{stroke:#6fb7e8;stroke-width:.6;stroke-opacity:.25}.outline{fill:none;stroke:#46516040;stroke-width:1}.glass.opening{fill:#2f5c46}.panel-hit{cursor:pointer}.panel-hit:hover .glass{fill-opacity:.78}.panel-sel{fill:none;stroke:var(--accent-2);stroke-width:2.4}.sym-line{fill:none;stroke:#e6f2fb;stroke-width:1.2;stroke-dasharray:6 4;opacity:.9}.sym-mid{stroke:#e6f2fb;stroke-width:1.2;opacity:.7}.handle-body,.handle-lever{fill:#ffd79a}.mullion.inter{fill:#8b98a8}.mullion.half,.transom.half{fill:#c2b48a;stroke:#9b8f66}.void-cell{fill:#0d1117;stroke:#2b323d;stroke-width:1;stroke-dasharray:6 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