:root{color-scheme:light;--ink:#20252b;--muted:#4b5563;--blue:#064a91;--blue-dark:#06376a;--line:#a7b0b9;--soft:#e4e8ec;--wash:#f6f8fa;--error:#a41d27}*,:before,:after{box-sizing:border-box}html{font-size:100%}body{color:var(--ink);letter-spacing:.01em;background:#fff;margin:0;font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,Hiragino Sans,Yu Gothic,Meiryo,sans-serif;line-height:1.65}a{color:var(--blue);text-underline-offset:.2em}a:visited{color:#663d88}a:hover{text-decoration-thickness:.125rem}:focus-visible{outline-offset:.1875rem;outline:.1875rem solid #c25200}[hidden]{display:none!important}.skip-link{z-index:10;background:#fff;padding:.5rem;position:absolute;top:-6rem;left:1rem}.skip-link:focus{top:.5rem}.wrap{width:min(100% - 2rem,60rem);margin-inline:auto}.site-header{border-top:.25rem solid var(--blue-dark);border-bottom:1px solid var(--line)}.header-inner{justify-content:space-between;align-items:center;gap:1rem;min-height:4rem;display:flex}.wordmark{color:var(--ink);white-space:nowrap;align-items:baseline;gap:.75rem;font-size:1.3125rem;font-weight:700;text-decoration:none;display:inline-flex}.wordmark:visited{color:var(--ink)}.wordmark small{color:var(--muted);font-size:.75rem;font-weight:500}.header-nav{gap:.25rem;display:flex}.header-nav a{align-items:center;min-height:2.75rem;padding-inline:.625rem;font-size:.9375rem;font-weight:600;display:inline-flex}.breadcrumb{color:var(--muted);margin-top:1.25rem;font-size:.875rem}.breadcrumb ol{flex-wrap:wrap;gap:.35rem;margin:0;padding:0;list-style:none;display:flex}.breadcrumb li:not(:last-child):after{content:"/";margin-left:.35rem}.breadcrumb a{padding-block:.25rem;display:inline-block}main{padding-block:1.875rem 4rem}h1{margin:0 0 .5rem;font-size:clamp(1.625rem,4vw,1.875rem);font-weight:700;line-height:1.35}h2{margin:0 0 1rem;font-size:1.3125rem;font-weight:650;line-height:1.4}h3{margin:0 0 .5rem;font-size:1.0625rem;font-weight:650;line-height:1.45}p{margin:0 0 1rem}.lead{max-width:45rem;margin-bottom:1.5rem;font-size:1.0625rem}.tool{border-top:.1875rem solid var(--blue-dark);max-width:45rem;padding-top:1.25rem}.form-row{grid-template-columns:minmax(0,2fr) minmax(8.75rem,1fr);gap:1rem;display:grid}.form-row+button,.secondary-fields{margin-top:1rem}label{margin-bottom:.375rem;font-weight:700;display:block}input,select{width:100%;height:3rem;color:var(--ink);font:inherit;background:#fff;border:1px solid #66717b;border-radius:.125rem;padding:.5rem .75rem}input[aria-invalid=true]{border:.125rem solid var(--error)}.help{color:var(--muted);margin:.375rem 0 0;font-size:.875rem}.error{min-height:1.6em;color:var(--error);margin:.25rem 0;font-size:.875rem;font-weight:700}button,.button{border:1px solid var(--blue);background:var(--blue);color:#fff;min-height:3rem;font:inherit;cursor:pointer;border-radius:.125rem;justify-content:center;align-items:center;padding:.5625rem 1.5rem;font-weight:650;text-decoration:none;display:inline-flex}button:hover,.button:hover{background:var(--blue-dark)}button:disabled{cursor:wait;opacity:.65}.button-secondary{color:var(--ink);background:#fff;border-color:#66717b}.button-secondary:hover{border-color:var(--blue);background:var(--wash)}.button:visited{color:#fff}.speed-measure{margin-top:.75rem}.speed-measure .button-secondary{min-height:2.75rem;padding-inline:1rem}.measure-status{min-height:1.6em;color:var(--blue-dark);margin:.25rem 0 0;font-size:.875rem;font-weight:650}.results{border-top:1px solid var(--line);margin-top:1.5rem;padding-top:1.25rem}.results h2{margin-bottom:.5rem;font-size:1.125rem}.main-result{font-variant-numeric:tabular-nums;margin-bottom:.25rem;font-size:clamp(1.75rem,5vw,2.125rem);font-weight:700;line-height:1.35}.result-note{color:var(--muted);font-size:.875rem}.result-grid{border-top:1px solid var(--line);margin:1.25rem 0 .75rem;padding:0}.result-grid>div{border-bottom:1px solid var(--soft);grid-template-columns:minmax(10rem,.85fr) minmax(0,1.15fr);align-items:baseline;gap:1rem;padding:.625rem 0;display:grid}.result-grid dt{color:var(--muted);font-size:.9375rem}.result-grid dd{overflow-wrap:anywhere;font-variant-numeric:tabular-nums;margin:0;font-size:1.0625rem;font-weight:650}.section{border-top:1px solid var(--soft);margin-top:2.5rem;padding-top:1.75rem}.section>h2{border-left:.25rem solid var(--blue);padding-left:.75rem}.section>p,.section>ul,.section>ol{max-width:45rem}.link-list{border-top:1px solid var(--soft);max-width:42.5rem;margin:0;padding:0;list-style:none}.link-list li{border-bottom:1px solid var(--soft)}.link-list a{min-height:3rem;padding-block:.625rem;display:block}.guide-list{border-top:1px solid var(--line);max-width:45rem;margin:1.5rem 0 0;padding:0;list-style:none}.guide-list li{border-bottom:1px solid var(--soft)}.guide-list a{min-height:4.5rem;padding:.75rem 0;text-decoration:none;display:block}.guide-list strong{text-underline-offset:.2em;text-decoration:underline;display:block}.guide-list span{color:var(--muted);margin-top:.125rem;font-size:.9375rem;display:block}.diagram{border:1px solid var(--soft);background:var(--wash);max-width:42.5rem;margin:1.25rem 0;padding:1rem}.diagram svg{width:100%;height:auto;max-height:15.625rem;display:block}.diagram figcaption,.small{color:var(--muted);font-size:.875rem}.value-visual{border:1px solid var(--line);background:#fff;max-width:32rem;margin:1rem 0;padding:1rem}.value-visual svg{width:100%;height:auto;display:block}.value-visual rect{fill:#fff;stroke:var(--blue);stroke-width:2px}.value-visual path{fill:#cfe4f7;stroke:var(--blue);stroke-width:2px}.value-visual text{fill:var(--ink);font:700 15px sans-serif}.value-visual figcaption{color:var(--muted);margin-top:.5rem;font-size:.875rem}.site-footer{border-top:1px solid var(--soft);color:var(--muted);padding-block:1.5rem 2.5rem;font-size:.875rem}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:1rem;display:flex}.site-footer a{min-height:1.875rem;display:inline-block}.site-footer nav{flex-wrap:wrap;gap:.25rem 1rem;display:flex}.definition-list{border-top:1px solid var(--soft);max-width:45rem;margin:1.5rem 0}.definition-list>div{border-bottom:1px solid var(--soft);grid-template-columns:10rem 1fr;gap:1rem;padding:.75rem 0;display:grid}.definition-list dt{font-weight:700}.definition-list dd{margin:0}.home-grid{grid-template-columns:minmax(0,1.55fr) minmax(17rem,.9fr);align-items:start;gap:3rem;margin-top:1.75rem;display:grid}.home-tool{width:100%}.tool-directory>h2{border-left:.25rem solid var(--blue);padding-left:.75rem}.tool-directory--compact>h2{margin-top:0}.tool-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.75rem 2.5rem;display:grid}.tool-directory--compact .tool-groups{grid-template-columns:1fr;gap:1rem}.tool-groups section{border-top:1px solid var(--line)}.tool-groups h3{margin:0;padding:.625rem 0 .375rem}.tool-groups ul{margin:0;padding:0;list-style:none}.tool-groups li{border-bottom:1px solid var(--soft);padding:.5rem 0}.tool-groups a{font-weight:600;display:inline-block}.tool-groups span{color:var(--muted);margin-top:.125rem;font-size:.875rem;display:block}.page-columns{grid-template-columns:minmax(0,44rem) minmax(12rem,1fr);align-items:start;gap:3rem;display:grid}.page-primary .tool{max-width:none}.page-aside{border-left:1px solid var(--soft);padding-left:1.25rem;font-size:.9375rem}.page-aside h2{margin-top:1.5rem;font-size:1rem}.page-aside ul{border-top:1px solid var(--soft);margin:0;padding:0;list-style:none}.page-aside li{border-bottom:1px solid var(--soft);padding:.5rem 0}.aside-parent{border:1px solid var(--line);background:var(--wash);margin:0;padding:.625rem .75rem;font-weight:600}.scale-comparison{border-top:1px solid var(--line);margin-top:1.25rem;padding-top:1rem}.scale-comparison h3{color:var(--muted);margin-bottom:.375rem;font-size:.9375rem}.comparison-list{margin:0}.comparison-list>div{grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:1rem;padding:.375rem 0;display:grid}.comparison-list dt{font-weight:650}.comparison-list dt small{color:var(--muted);white-space:nowrap;margin-left:.5rem;font-size:.8125rem;font-weight:400;display:inline}.comparison-list dd{font-variant-numeric:tabular-nums;white-space:nowrap;margin:0;font-size:1.0625rem;font-weight:700}.comparison-source{color:var(--muted);margin:.25rem 0 0;font-size:.8125rem}@media (width<=52rem){.home-grid,.page-columns{grid-template-columns:1fr;gap:2.5rem}.page-aside{border-top:1px solid var(--soft);border-left:0;padding:1.25rem 0 0}}@media (width<=37.5rem){.header-inner{min-height:3.5rem}.wordmark{font-size:1.125rem}.wordmark small{display:none}.header-nav a{padding-inline:.375rem;font-size:.8125rem}.header-nav a:last-child{display:none}main{padding-top:1.5rem}.form-row{grid-template-columns:1fr;gap:.75rem}.result-grid>div{grid-template-columns:1fr;gap:.125rem}.comparison-list>div{gap:.625rem}.comparison-list dt small{margin-left:0;display:block}.tool button{width:100%}.section{margin-top:2rem}.footer-inner{display:block}.site-footer nav{margin-top:1rem}.definition-list>div{grid-template-columns:1fr;gap:.25rem}.home-grid,.page-columns,.tool-groups{grid-template-columns:1fr;gap:2rem}.page-aside{border-top:1px solid var(--soft);border-left:0;padding:1.25rem 0 0}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}