:root{--ink:#17334b;--muted:#526b80;--blue:#edf4fa;--line:#d2dee7;--accent:#a06b17;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:white;font:17px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:#205c87;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #a06b17;outline-offset:5px}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;line-height:1.13;font-weight:normal}h1{font-size:clamp(38px,5.1vw,70px);letter-spacing:-1.8px;margin:18px 0 24px}h2{font-size:34px;margin:0 0 20px}h3{font-size:25px;margin:0 0 12px}p{max-width:72ch;margin:0 0 20px}.wrap{max-width:1240px;margin:auto;padding:0 36px}.preview{background:var(--ink);color:white;text-align:center;font-size:13px;padding:7px 18px}.skip{position:absolute;top:-90px;background:white;padding:12px;z-index:10}.skip:focus{top:0}.brand{color:var(--ink);font:700 30px Georgia,serif;text-decoration:none;letter-spacing:-1px}.brand span{font-weight:normal}.masthead{padding-top:25px;padding-bottom:22px;display:flex;justify-content:space-between;align-items:center;gap:25px}.tagline{font-size:13px;color:var(--muted);margin:0}.nav{display:flex;gap:27px;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 0;font-size:14px}.nav a{color:var(--ink);text-decoration:none}.nav a[aria-current]{font-weight:700;text-decoration:underline}.hero{display:grid;grid-template-columns:1.35fr 1fr;gap:80px;align-items:center;padding:65px 0 75px}.hero p{font-size:20px;color:var(--muted);max-width:47ch}.button{display:inline-block;background:var(--ink);color:white;text-decoration:none;border-radius:5px;padding:12px 22px;font-size:15px;font-weight:600;border:1px solid var(--ink)}.button.secondary{background:white;color:var(--ink)}.feature{background:var(--blue);padding:35px;border-radius:12px 40px 12px 12px;border:1px solid var(--line)}.feature h2{font-size:46px}.feature .intro{font-size:14px;color:var(--muted)}.feature p{font-size:17px}.factline{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #c7d6e2;padding:12px 0;font-size:15px}.factline:last-of-type{margin-bottom:20px}.section{padding:55px 0;border-top:1px solid var(--line)}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:30px}.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:30px}.topic{border-left:3px solid var(--line);padding:0 0 0 22px}.topic p{font-size:15px;color:var(--muted)}.status{display:inline-block;font-size:12px;letter-spacing:.2px;background:var(--blue);padding:4px 9px;border-radius:4px;margin-bottom:16px}.methods{display:grid;grid-template-columns:1fr 1fr;gap:60px}.methods p{font-size:16px;color:var(--muted)}footer{margin-top:55px;background:var(--blue);padding:35px 0;font-size:14px}footer .wrap{display:flex;justify-content:space-between;gap:35px}footer p{font-size:13px;max-width:66ch}.breadcrumbs{font-size:13px;display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}.page-intro{padding:20px 0 35px;max-width:850px}.page-intro h1{font-size:clamp(38px,4.8vw,58px)}.lede{font-size:21px;color:var(--muted)}.searchbox{background:var(--blue);padding:25px;border-radius:8px;margin-bottom:25px}.searchbox label{font-weight:600;display:block;margin-bottom:8px}.searchbox input{width:100%;max-width:550px;padding:12px 14px;font:inherit;border:1px solid #8ba1b3;border-radius:4px;background:white}.searchbox p{font-size:14px;margin:9px 0 0}.states{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0 30px}.states li{padding:14px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}.states span{font-size:12px;color:var(--muted)}.states a{font-weight:700}.states li[hidden]{display:none}.empty{padding:20px;background:var(--blue)}.article-top{max-width:900px;padding:5px 0 35px}.article-top h1{font-size:clamp(38px,5vw,60px)}.meta{font-size:13px;color:var(--muted)}.article-grid{display:grid;grid-template-columns:220px minmax(0,760px);gap:65px;align-items:start}.toc{position:sticky;top:25px;font-size:14px}.toc strong{display:block;margin-bottom:15px}.toc a{display:block;margin:9px 0;text-decoration:none}.article section{scroll-margin-top:25px;margin-bottom:42px}.article h2{font-size:31px}.article p,.article li{font-size:17px}.summary{border-left:4px solid var(--accent);background:var(--blue);padding:25px;margin-bottom:35px}.summary p:last-child{margin-bottom:0}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:15px;margin:20px 0}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--blue)}caption{text-align:left;font-weight:bold;margin-bottom:10px}.note{background:#f5f7f8;border:1px solid var(--line);border-radius:6px;padding:20px;font-size:14px}.article .note p{font-size:14px}.sources{font-size:14px;padding-left:23px}.sources li{font-size:14px;margin-bottom:12px}.article details{border-bottom:1px solid var(--line);padding:16px 0}.article summary{cursor:pointer;font-weight:600}.article details p{margin:14px 0 4px}button{cursor:pointer}.quiet{color:var(--muted)}@media(max-width:850px){.hero{gap:35px}.topics{grid-template-columns:repeat(2,1fr)}.states{grid-template-columns:repeat(3,1fr)}.article-grid{grid-template-columns:1fr;gap:20px}.toc{position:static;border:1px solid var(--line);padding:20px;border-radius:8px}.toc a{display:inline-block;margin:6px 14px 6px 0}.masthead{align-items:flex-start}.tagline{max-width:170px}.hero h1{font-size:48px}}@media(max-width:600px){.wrap{padding:0 20px}.masthead{display:block;padding-top:20px}.tagline{max-width:none;margin-top:5px}.nav{gap:12px 20px}.hero{grid-template-columns:1fr;padding:32px 0 40px;gap:30px}.hero h1{font-size:44px}.hero p{font-size:18px}.feature{padding:25px}.topics,.methods{grid-template-columns:1fr;gap:25px}.section{padding:35px 0}.section-head{display:block}.states{grid-template-columns:repeat(2,1fr);gap:0 18px}.states li{font-size:15px}.page-intro{padding-top:0}.lede{font-size:18px}footer .wrap{display:block}.article-top h1{font-size:40px}.summary{padding:20px}th,td{padding:10px 8px}.article-grid{gap:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.preview,.nav,.toc,.searchbox{display:none}.article-grid{display:block}.wrap{padding:0}footer{background:none}a{color:inherit}}