:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f5f7f8;--foreground:#1b252b;--ink:#101816;--muted:#52616b;--panel:#fff;--panel-soft:#edf4f1;--line:#ccd6dc;--input-border:#8399a3;--teal:#006a67;--teal-strong:#00514f;--mint:#dff4ec;--accent:#a64727;--amber:#f3a712;--orange:#d95d39;--red:#b42318;--green:#177245;--link:#005b84;--focus:#a64727;--surface-hover:#e8f0f3;--selection:#dcecef;--success-bg:#e8f5ec;--warning-bg:#fff4e5;--warning-text:#5d440a;--warning-border:#9b6705;--danger-bg:#fff0ed;--info-bg:#e9f2f9;--diagram-fill:#e3f1f4;--diagram-obstacle:#8399a3;--action-bg:#006a67;--on-action:#fff;--inverse-bg:#162b32;--inverse-text:#e1f3ec}@media screen{:root[data-thl-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--background:#141b20;--foreground:#e7eef2;--ink:#e7eef2;--muted:#b4c1c8;--panel:#1c262c;--panel-soft:#253238;--line:#485b65;--input-border:#8399a3;--teal:#72d5c4;--teal-strong:#91e4d4;--mint:#29463e;--accent:#ffb18b;--amber:#ffd474;--orange:#ffb18b;--red:#ffaaa3;--green:#8ad6a4;--link:#8bd4f8;--focus:#ffcb7a;--surface-hover:#2b3b44;--selection:#29434b;--success-bg:#193b2c;--warning-bg:#392e17;--warning-text:#ffe0a3;--warning-border:#e7b852;--danger-bg:#422624;--info-bg:#203543;--diagram-fill:#243d45;--diagram-obstacle:#8399a3}}@media print{:root{--lightningcss-light:initial!important;--lightningcss-dark: !important;color-scheme:light!important}}.rfWorkspace{border-block:1px solid var(--line);background:var(--background);max-width:1380px;color:var(--ink);margin:32px auto;padding:clamp(24px,4vw,48px) 20px;font-size:1rem;line-height:1.6}.rfWorkspace [hidden]{display:none}.rfWorkspace,.rfWorkspace .rfCalculator{scroll-margin-top:120px}.rfHeading{max-width:850px;margin-bottom:28px}.rfHeading h2{font-size:clamp(1.8rem,4vw,2.6rem)}.rfHeading p{margin-bottom:0}.rfPathSetup{border:1px solid var(--teal);border-top:5px solid var(--teal);background:var(--panel);grid-template-columns:minmax(220px,.8fr) minmax(0,1.2fr);gap:24px 40px;padding:clamp(20px,3vw,32px);display:grid}.rfPathSetup h3{margin:0 0 10px;font-size:1.4rem}.rfPathSetup p{color:var(--muted);margin:0}.rfPathFields,.rfEquipmentFields{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.rfPresets{flex-wrap:wrap;grid-column:1/-1;gap:8px;margin:0;display:flex}.rfPresets button{border:1px solid var(--input-border);background:var(--panel);min-height:44px;color:var(--foreground);border-radius:4px;padding:9px 12px;font-size:.9375rem;font-weight:700}.rfPresets button:hover{background:var(--surface-hover)}.rfPresets button.active{background:var(--action-bg);color:var(--on-action);border-color:var(--teal)}.rfJumpLinks{flex-wrap:wrap;gap:12px 24px;margin:18px 0 28px;display:flex}.rfJumpLinks a{color:var(--teal-strong);text-underline-offset:4px;padding-block:6px;font-weight:750}.rfCalculator{background:var(--panel);border:1px solid var(--line);margin-top:24px}.rfCalculatorHeading{border-bottom:1px solid var(--line);align-items:flex-start;gap:16px;padding:clamp(20px,3vw,32px);display:flex}.rfStep{background:var(--inverse-bg);height:40px;color:var(--inverse-text);flex:0 0 40px;place-items:center;font-weight:800;display:grid}.rfCalculatorHeading h3{margin:0 0 8px;font-size:clamp(1.3rem,2.3vw,1.8rem);line-height:1.25}.rfCalculatorHeading p{color:var(--muted);max-width:800px;margin:0}.rfColumns{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;display:grid}.rfInputs,.rfResults{min-width:0;padding:clamp(20px,3vw,32px)}.rfInputs{gap:20px;display:grid}.rfResults{background:var(--panel-soft);border-left:1px solid var(--line);align-self:stretch}.rfField{flex-direction:column;gap:6px;min-width:0;display:flex}.rfField label,.rfSelectLabel{font-size:.9375rem;font-weight:750;line-height:1.4}.rfField label span{color:var(--muted);white-space:nowrap;font-weight:500}.rfWorkspace .rfField input,.rfDetailFields select{border:1px solid var(--input-border);background:var(--panel);width:100%;min-width:0;min-height:48px;color:var(--ink);font:inherit;border-radius:4px;padding:10px 12px}.rfWorkspace .rfField input{font-size:1.125rem;font-weight:650}.rfWorkspace .rfField input[aria-invalid=true]{border-color:var(--red);background:var(--danger-bg)}.rfField small,.rfHint{color:var(--muted);font-size:.875rem;line-height:1.5}.rfField small:empty{display:none}.rfError{color:var(--red);font-size:.875rem;font-weight:650}.rfWorkspace p{line-height:1.6}.rfAssumption,.rfApplied,.rfLimit,.rfContextNote,.rfActiveNote{font-size:.9375rem}.rfAssumption{color:var(--muted);margin:0}.rfDetailButton{border:1px solid var(--teal);background:var(--panel-soft);width:100%;min-height:48px;color:var(--teal-strong);text-align:left;border-radius:4px;align-items:center;gap:10px;padding:12px 16px;font-size:1rem;font-weight:750;line-height:1.4;display:flex}.rfDetailButton:hover{background:var(--mint)}.rfDetailButton>span{font-size:1.4rem;line-height:1}.rfDetailFields{gap:18px;padding-top:4px;display:grid}.rfDetailFields h4{margin:12px 0 0;font-size:1.05rem}.rfDetailFields p{margin:0}.rfTextButton{min-height:44px;color:var(--teal-strong);text-align:left;text-underline-offset:4px;background:0 0;border:0;justify-self:start;padding:6px 0;font-size:.9375rem;text-decoration:underline}.rfCheck{cursor:pointer;align-items:center;gap:12px;min-height:48px;font-weight:750;display:flex}.rfCheck input{width:22px;height:22px;accent-color:var(--teal);flex:0 0 22px}.rfNoiseInputs{border-left:3px solid var(--teal);gap:18px;padding-left:16px;display:grid}.rfVerdict{border-left:4px solid var(--teal);background:var(--success-bg);padding:18px 20px}.rfVerdict.warn{border-color:var(--warning-border);background:var(--warning-bg)}.rfVerdict.danger{border-color:var(--red);background:var(--danger-bg)}.rfVerdict h4,.rfPaused h4{margin:0 0 8px;font-size:1.125rem;line-height:1.4}.rfVerdict p,.rfPaused p{margin:0}.rfMetrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-block:24px;display:grid}.rfMetric{min-width:0}.rfMetric>span{color:var(--muted);margin-bottom:8px;font-size:.9375rem;line-height:1.4;display:block}.rfMetric strong{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;font-size:clamp(1.65rem,2.8vw,2.7rem);font-weight:800;line-height:1.2;display:block}.rfMetric small{font-size:1rem;font-weight:600}.rfApplied{color:var(--foreground);border-top:1px solid var(--line);padding-top:16px}.rfLimit{color:var(--muted);margin-bottom:0}.rfActiveNote{color:var(--teal-strong);margin:0;font-weight:650}.rfContextNote{background:var(--warning-bg);border-left:3px solid var(--warning-border);color:var(--warning-text);margin:16px 0 0;padding:12px 14px}.rfResultDetail{margin-top:24px}.rfResultDetail dl{margin:0 0 16px}.rfResultDetail dl>div{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;gap:8px 16px;padding:10px 0;font-size:.9375rem;display:flex}.rfResultDetail dd{font-variant-numeric:tabular-nums;margin:0;font-weight:750}.rfMethod{border:1px solid var(--line);background:var(--panel);margin-top:20px;padding:0 16px 16px}.rfMethod:not([open]){padding-bottom:0}.rfMethod summary{cursor:pointer;color:var(--teal-strong);padding:14px 0;font-weight:750;line-height:1.5}.rfMethod p{font-size:.9375rem}.rfMethod code{background:var(--panel-soft);overflow-wrap:anywhere;margin-block:10px;padding:12px;font-size:.875rem;display:block}.rfSources a{color:var(--teal-strong);text-underline-offset:3px}.rfPaused{border:1px dashed var(--input-border);background:var(--panel);padding:24px}.rfErrorSummary{color:var(--red);margin:16px 0 0;padding-left:20px;font-size:.9375rem}.rfWorkspace :is(button,input,select,a,summary):focus-visible{outline:3px solid var(--focus);outline-offset:4px}@media (width<=1080px){.rfColumns{grid-template-columns:1fr}.rfResults{border-left:0;border-top:1px solid var(--line)}}@media (width<=640px){.rfWorkspace{padding:24px 12px}.rfPathSetup,.rfPathFields,.rfEquipmentFields{grid-template-columns:1fr}.rfInputs,.rfResults,.rfCalculatorHeading,.rfPathSetup{padding:16px}.rfCalculatorHeading{gap:12px}.rfStep{flex-basis:32px;height:32px;font-size:.875rem}.rfWorkspace,.rfWorkspace .rfCalculator{scroll-margin-top:20px}}@media (width<=360px){.rfMetrics{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.rfWorkspace{scroll-behavior:auto}}*{box-sizing:border-box}body{color:var(--foreground);background:var(--background);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:1rem;line-height:1.6}#rf-calculators-root{display:flow-root}button,input,select{font:inherit}button,summary{cursor:pointer}h1,h2,h3,p{margin-top:0}h2{margin-bottom:16px;line-height:1.25}p{margin-bottom:18px}a{color:var(--teal-strong);text-underline-offset:3px}ul{padding-left:24px}li{margin-bottom:8px}.eyebrow{color:var(--teal);margin-bottom:10px;font-size:.875rem;font-weight:700}.rfWorkspace{margin-block:0}.calculatorBrandbar{border-bottom:1px solid var(--line);background:var(--panel);padding:12px max(20px,50% - 650px)}.calculatorBrand{color:var(--foreground);align-items:center;gap:12px;text-decoration:none;display:inline-flex}.calculatorBrand:focus-visible{outline:3px solid var(--focus);outline-offset:4px}.calculatorBrand .brandMark{flex:0 0 48px;width:48px;height:48px;display:block}.calculatorBrand strong,.calculatorBrand small{display:block}.calculatorBrand small{color:var(--muted);font-size:.875rem}