:root{color:#353535;font-synthesis:none;--cast-maroon:maroon;--cast-red:#940000;--cast-accent:#c00;--cast-dark:#353535;--cast-snow:#fcfaf7;--cast-isabelline:#f4f2f0;--cast-bright-gray:#eceae8;background:#fcfaf7;font-family:Trebuchet MS,Arial,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}.app-shell{min-height:100vh}.topbar{border-bottom:3px solid var(--cast-red);background:#fff;justify-content:space-between;align-items:center;min-height:94px;padding:8px clamp(20px,5vw,72px);display:flex;box-shadow:0 4px 18px #35353512}.brand-button{cursor:pointer;background:0 0;border:0;padding:0;line-height:0}.brand-logo{object-fit:contain;object-position:left center;width:min(310px,55vw);height:auto;max-height:76px;display:block}.language-switch{border:1px solid var(--cast-bright-gray);border-radius:9px;display:flex;overflow:hidden}.language-switch button{color:#5d5555;cursor:pointer;background:#fff;border:0;padding:8px 12px}.language-switch 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3}.chart-selection{background:var(--cast-isabelline);color:#5d5555;border-radius:8px;min-height:38px;margin-top:10px;padding:10px 12px;font-size:13px}@media (width<=760px){.calibration-chart-heading,.calculation-result-toolbar{flex-direction:column;align-items:flex-start}.calibration-chart-panel{padding:14px}}.chart-original-point{fill:#999;stroke:#fff;stroke-width:1px}.chart-outlier-marker{fill:#d07a00}.chart-legend .legend-corrected:before{background:#d07a00;border-radius:50%;width:10px;height:10px}.single-equipment-toolbar{margin-bottom:18px}.single-equipment-card{background:#fff;border:1px solid #e5e2df;border-radius:16px;margin-bottom:22px;padding:22px}.single-equipment-fields{border:0;grid-column:1/-1;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;width:100%;min-width:0;margin:0;padding:0;display:grid}.single-equipment-fields label{flex-direction:column;gap:8px;min-width:0;display:flex}.single-equipment-fields input,.single-equipment-fields 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