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var(--color-rule-ink);border-radius:var(--radius-control);padding:var(--space-3);background:var(--color-paper);font:inherit}.form-actions{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-top:var(--space-1)}.result-box{position:sticky;top:var(--space-4);min-width:0;border-radius:var(--radius-card);padding:var(--space-5);background:var(--color-paper-2);overflow-wrap:anywhere}.result-label{margin-bottom:var(--space-4);font:600 var(--text-lg) / 1.3 var(--font-body)}[data-result-empty]{color:var(--color-muted);font-size:var(--text-lg)}.result-value,.calculation-results dd{margin-top:var(--space-1);font:600 1.65rem / 1.3 var(--font-body);font-variant-numeric:tabular-nums}.result-explainer{margin-top:var(--space-2);font-size:var(--text-sm)}.calculation-results{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-4);margin:0}.calculation-results dt{font-size:var(--text-sm)}.calculation-results dd{margin-inline:0}.result-box [data-result-status]{margin-top:var(--space-2)}.board-group{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);margin-block:0 var(--space-4);border:0;border-top:1px solid var(--color-rule);padding:var(--space-4) 0 0}.board-group legend{padding-right:var(--space-2);font-weight:600}.board-group button{justify-self:start}.content-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:var(--column-gap)}.home-measurement-notes{display:grid;gap:var(--space-5)}.callout{padding:var(--space-4);background:var(--color-paper-2)}.callout p{margin-top:var(--space-2)}.breadcrumbs{padding-block:var(--space-4);color:var(--color-muted);font-size:var(--text-sm)}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:var(--space-2);margin:0;padding:0;list-style:none}.breadcrumbs li+li:before{content:"/";margin-right:var(--space-2);color:var(--color-muted)}.text-link:hover,.entry-item a:hover{color:var(--color-accent-2)}.entry-list{margin:var(--space-6) 0 0;border-top:1px solid var(--color-rule);padding:0;list-style:none}.entry-item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:var(--space-4) var(--column-gap);min-width:0;border-bottom:1px solid var(--color-rule);padding-block:var(--space-4)}.entry-item h2,.entry-item h3{font:600 1.2rem / 1.3 var(--font-body)}.entry-item p{margin-top:var(--space-1);color:var(--color-muted)}.entry-inputs{font-size:var(--text-sm)}.entry-meta{padding-top:var(--space-1);text-align:right}.tag-list{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-4);margin-top:var(--space-3);color:var(--color-muted);font-size:var(--text-sm)}.listing-top{padding-top:var(--space-2)}.calculator-index-head,.article-index-head{padding-bottom:var(--space-5)}.group-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-2);margin-top:var(--space-6)}.group-index a{display:flex;min-height:4.25rem;flex-direction:column;justify-content:space-between;border:1px solid var(--color-rule);border-radius:var(--radius-card);padding:var(--space-3);background:var(--color-paper-2);text-decoration:none}.group-index a:hover{border-color:var(--color-accent);background:var(--color-accent-soft)}.group-index small{color:var(--color-muted)}.directory-filters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4);margin-top:var(--space-5)}.directory-filters label{display:grid;gap:var(--space-1);font-size:var(--text-sm);font-weight:600}.directory-filters select{width:100%;font-weight:400}.filter-empty{margin-top:var(--space-4);color:var(--color-muted)}.grouped-calculator-list{padding-bottom:var(--section-space)}.calculator-group{padding-top:var(--space-8);scroll-margin-top:var(--space-4)}.calculator-group+.calculator-group{margin-top:var(--space-8);border-top:1px solid var(--color-rule)}.calculator-group-heading{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:var(--space-3) var(--space-6);border-bottom:1px solid var(--color-rule);padding-bottom:var(--space-4)}.calculator-group-heading h2{font-size:1.8rem}.calculator-group-heading p{color:var(--color-muted)}.calculator-group .entry-list{margin-top:0;border-top:0}[data-filter-hidden=true]{display:none}.calculator-page-heading{padding-top:var(--space-2);padding-bottom:var(--space-4)}.calculator-workflows{padding-bottom:var(--space-8)}.calculator-workflow{min-width:0}.calculator-workflow+.calculator-workflow{margin-top:var(--section-space);border-top:1px solid var(--color-rule);padding-top:var(--space-8)}.workflow-heading{margin-bottom:var(--space-5)}.workflow-heading .section-heading{font-size:2rem}.workflow-heading .listing-intro{margin-top:var(--space-2)}.calculator-education{margin-top:var(--space-8);border-top:1px solid var(--color-rule);padding-top:var(--space-6)}.education-heading{margin-bottom:var(--space-5);font-size:1.75rem;line-height:1.2}.calculator-education section+section{margin-top:var(--space-6)}.calculator-education section h3{margin-bottom:var(--space-2);font:600 1.05rem / 1.35 var(--font-body)}.calculator-education section h4{margin-bottom:var(--space-2);font:600 1.05rem / 1.35 var(--font-body)}.calculator-education section h5{font:600 var(--text-md) / 1.4 var(--font-body)}.calculator-education p+p{margin-top:var(--space-3)}.calculator-education ol{display:grid;gap:var(--space-2);margin:var(--space-3) 0 0;padding-left:1.4rem}.calculator-education li{padding-left:var(--space-1)}.formula-block{overflow-wrap:anywhere;padding:var(--space-3) var(--space-4);background:var(--color-paper-2);font:400 var(--text-sm) / 1.6 var(--font-outlier)}.worked-result{padding:var(--space-3) var(--space-4);background:var(--color-accent-soft)}.faq-item{border-top:1px solid var(--color-rule);padding-block:var(--space-3)}.faq-item h4{font:600 var(--text-md) / 1.4 var(--font-body)}.faq-item p{margin-top:var(--space-1);color:var(--color-muted)}.technical-notes{margin-top:var(--space-8);border:1px solid var(--color-rule);border-radius:var(--radius-control);padding:var(--space-4);background:var(--color-paper-2)}.technical-notes p{margin-top:var(--space-3)}.related-section{min-width:0;margin-top:var(--space-8);border-top:1px solid var(--color-rule);padding-top:var(--space-4)}.related-section h2{font-size:1.75rem}.notice{border-top:1px solid var(--color-rule);padding-block:var(--space-3);color:var(--color-muted);font-size:var(--text-sm)}.toc{margin-top:var(--space-5);border:1px solid var(--color-rule);border-radius:var(--radius-control);padding:var(--space-4)}.toc h2{margin-bottom:var(--space-2);font:600 var(--text-md) / 1.35 var(--font-body)}.toc ol{display:grid;gap:var(--space-2);margin:0;padding-left:1.4rem}.toc a[aria-current=location]{color:var(--color-accent);font-weight:600}.article-body section{scroll-margin-top:var(--space-4)}.article-body section+section{margin-top:var(--space-8)}.article-body h2{margin-bottom:var(--space-3);font-size:1.75rem}.article-body p+p{margin-top:var(--space-3)}.byline{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-5);margin-block:var(--space-3) var(--space-4);color:var(--color-muted);font-size:var(--text-sm)}.article-content{padding-top:var(--space-6)}.guide-blocks{display:grid;gap:var(--space-4);min-width:0}.guide-blocks p+p{margin-top:0}.guide-formula{white-space:pre-line}.guide-steps,.guide-tool-links{display:grid;gap:var(--space-3);margin:0;padding-left:1.5rem}.guide-tool-links a,.guide-figure a{text-decoration:underline;text-underline-offset:.15em}.guide-table-block{min-width:0}.guide-table-hint{display:none;margin-bottom:var(--space-2);color:var(--color-muted);font-size:var(--text-sm)}@media(max-width:40rem){.guide-table-hint{display:block}}.guide-table-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-inline:contain;border:1px solid var(--color-rule);border-radius:var(--radius-control)}.guide-table{width:100%;border-collapse:collapse;font-size:var(--text-sm)}.guide-table caption{padding:var(--space-3);text-align:left;font-weight:600}.guide-table th,.guide-table td{min-width:7.5rem;border-top:1px solid var(--color-rule);padding:var(--space-3);text-align:left;vertical-align:top}.guide-table thead th{background:var(--color-paper-2);font-weight:600}.guide-table tbody th{font-weight:500}.guide-figure{margin:var(--space-2) 0}.guide-figure img{width:100%;height:auto;border:1px solid var(--color-rule);border-radius:var(--radius-control)}.guide-figure figcaption{margin-top:var(--space-3);color:var(--color-muted);font-size:var(--text-sm)}.guide-example{display:grid;gap:var(--space-3);border-left:3px solid var(--color-accent);padding:var(--space-4) var(--space-5);background:var(--color-paper-2)}.guide-example h3,.guide-faq h3{font:600 var(--text-title) / 1.4 var(--font-body)}.guide-example h4{margin-top:var(--space-2);font:600 var(--text-md) / 1.4 var(--font-body)}.guide-results{display:grid;gap:var(--space-2);margin:0}.guide-results>div{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-1) var(--space-4)}.guide-results dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums}.guide-faq{display:grid;gap:var(--space-2)}.site-footer{margin-top:var(--section-space);border-top:1px solid var(--color-rule);background:var(--color-paper-2)}.footer-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr) minmax(0,.65fr);align-items:start;gap:var(--column-gap);padding-block:var(--space-8)}.footer-grid h2{margin-bottom:var(--space-3);font:600 1.05rem / 1.3 var(--font-body)}.footer-grid p{color:var(--color-muted)}.footer-brand .wordmark{display:inline-flex;min-height:2.75rem;align-items:center;margin-bottom:var(--space-3)}.footer-grid li a{display:flex;min-height:2.75rem;align-items:center;padding-block:var(--space-2)}.footer-calculator-groups ul{display:grid;gap:0 var(--space-5)}.footer-grid li+li{margin-top:0}.footer-contact{margin-top:var(--space-3)}.footer-site-links{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-4)}.footer-site-links a{display:inline-flex;min-height:2.75rem;align-items:center}.information-header .byline{margin-bottom:0}.contact-action{margin-top:var(--space-5)}.contact-action a{max-width:100%;overflow-wrap:anywhere}.information-list,.information-links{margin:var(--space-3) 0 0;padding-left:var(--space-5)}.information-list li+li{margin-top:var(--space-2)}.information-links a{display:inline-flex;min-height:2.75rem;align-items:center}.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-2) var(--space-6);border-top:1px solid var(--color-rule);padding-block:var(--space-3);color:var(--color-muted);font-size:var(--text-sm)}.listing-results{padding-block:var(--space-5) var(--section-space)}.compatibility-page{display:grid;justify-items:start;gap:var(--space-5)}@container (max-width: 40rem){.panel-heading{align-items:flex-start;flex-direction:column}.calculator-layout{grid-template-columns:1fr}.result-box{position:static}}@container (max-width: 26rem){.calculator-fields,.board-group,.basis-label{grid-template-columns:1fr}}@media(max-width:60rem){.masthead{flex-wrap:wrap;gap:var(--space-2) var(--space-4);padding-block:var(--space-2)}.site-menu-toggle{margin-left:auto}.site-header .header-action{display:none}.primary-nav{order:3;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;gap:var(--space-1);padding-block:var(--space-2)}.primary-nav>a,.calculator-navigation,.menu-trigger,.calculator-directory-fallback{width:100%}.menu-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-intro{padding-block:var(--space-8) var(--space-4)}.content-grid,.footer-grid{grid-template-columns:1fr}.footer-calculator-groups ul{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:40rem){:root{--gutter: 1rem;--section-space: 2rem;--column-gap: 1rem}.wordmark img{width:8.75rem}.primary-nav{gap:var(--space-1)}.primary-nav>a,.calculator-directory-fallback,.menu-trigger{padding-inline:var(--space-2);font-size:var(--text-sm)}.header-action{min-height:2.75rem;padding-inline:var(--space-3);font-size:var(--text-sm)}.display-heading{font-size:2.45rem}.page-title{font-size:2.25rem}.section-heading{font-size:1.8rem}.group-picker,.group-index,.directory-filters,.menu-grid,.footer-grid{grid-template-columns:1fr}.group-picker{gap:var(--space-6)}.calculator-panel,.result-box{padding:var(--space-4)}.group-picker a,.menu-panel a,.footer-grid a,.toc a,.entry-item h2 a,.entry-item h3 a{display:flex;min-height:2.75rem;align-items:center}.footer-calculator-groups ul{grid-template-columns:1fr}.group-index a{min-height:3.75rem}.entry-item{grid-template-columns:1fr;gap:var(--space-2)}.entry-meta{text-align:left}.calculator-group-heading{align-items:flex-start;flex-direction:column}.calculator-group-heading h2,.workflow-heading .section-heading{font-size:1.6rem}.calculator-education{margin-top:var(--space-6);padding-top:var(--space-5)}.education-heading{font-size:1.5rem}.footer-grid{gap:var(--space-6)}.footer-bottom{flex-direction:column}}@media(any-pointer:coarse){.menu-group a{min-height:2.75rem}}