:root{--paper:#fffefc;--ink:#111;--secondary:#555962;--rule:#e4e6eb;--accent:#ff5736;--sans:"DM Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.7 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:.2em}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #315efb;outline-offset:4px}.site-header{padding-bottom:1rem}.brand-mark{display:block}.brand-glyph{width:48px;height:48px}.top-links{display:flex}.nav-link{text-decoration:none}.editorial{width:min(100% - 2.5rem,48rem);margin:4rem auto 6rem}.breadcrumbs{display:flex;gap:.65rem;flex-wrap:wrap;font-size:.9rem;color:var(--secondary);margin-bottom:2rem}h1{font-size:clamp(2.3rem,5.5vw,4.2rem);line-height:1.07;letter-spacing:-.045em;font-weight:600;margin:0 0 1.5rem}h2{font-size:clamp(1.45rem,3vw,2rem);line-height:1.22;letter-spacing:-.025em;margin:3rem 0 1rem}h3{font-size:1.15rem;line-height:1.35;margin:1.6rem 0 .6rem}p{margin:0 0 1.25rem}.lead{font-size:1.23rem;color:var(--secondary);line-height:1.6}.byline{font-size:.85rem;color:var(--secondary)}.answer{border-left:3px solid var(--accent);padding:1rem 1.3rem;margin:2rem 0;background:#faf5ef}.answer p:last-child{margin:0}.toc{margin:2rem 0;padding:1.4rem 0;border-block:1px solid var(--rule)}.toc ul{margin:.5rem 0;padding-left:1.2rem}.toc li{margin:.3rem 0}li{margin:.6rem 0}img{max-width:100%;height:auto}.app-figure{margin:2.5rem auto;text-align:center}.app-figure img{max-height:34rem;width:auto;border-radius:1.5rem;border:1px solid var(--rule)}figcaption{color:var(--secondary);font-size:.9rem;margin-top:.8rem}.table-scroll{overflow-x:auto;margin:1.5rem 0}table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{text-align:left;vertical-align:top;padding:1rem .8rem;border-bottom:1px solid var(--rule)}th{background:#f5f3ee}th:first-child,td:first-child{padding-left:.5rem}.guide-list{list-style:none;padding:0}.guide-list li{padding:1.6rem 0;border-bottom:1px solid var(--rule);margin:0}.guide-list h2{margin:.3rem 0 .6rem;font-size:1.5rem}.guide-list p{color:var(--secondary);margin:0}.topic{font-size:.85rem;color:var(--secondary)}.cta{margin-top:3rem;padding:1.8rem 0;border-block:1px solid var(--rule)}.cta h2{margin:0 0 .6rem}.button{display:inline-flex;align-items:center;background:var(--accent);color:#fff;text-decoration:none;border:0;border-radius:999px;padding:.7rem 1.3rem;font-weight:600}.button:hover{color:#fff;background:#ff694b}.related{margin-top:3rem}.sources{font-size:.95rem;color:var(--secondary)}footer{max-width:75rem;margin:auto;padding:2rem 1rem;text-align:center;font-size:.9rem;color:var(--secondary)}.footer-links{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.skip-link{position:absolute;left:1rem;top:-5rem}.skip-link:focus{top:1rem;background:#fff;padding:.7rem;z-index:10}.calculator{padding:1.5rem;border:1px solid var(--rule);border-radius:1rem}.calculator label{display:block;font-weight:600}.calculator input{font:inherit;padding:.6rem;margin:.4rem 0 1.5rem;width:100%;max-width:15rem;border:1px solid #777;border-radius:.4rem}.calculator output{display:block;font-size:1.3rem;font-weight:600}.calculator small{display:block;color:var(--secondary)}[id]{scroll-margin-top:2rem}@media(max-width:600px){.editorial{margin-top:2.5rem}th,td{padding:.7rem .5rem;min-width:8rem}}