@charset "UTF-8";
:root{--paper:#f5f2e9;--ink:#202322;--muted:#5c625c;--line:#c6c5b9;--red:#c74631;--teal:#244e55;--gold:#ffc86b;--white:#fffefa}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:1.65}a{color:inherit;text-underline-offset:5px}a:hover{color:var(--red)}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--red);outline-offset:4px}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.12;letter-spacing:-.04em}h1{font-size:clamp(2.4rem,5.4vw,4.8rem);max-width:1020px;font-weight:700;text-wrap:balance}h2{font-size:clamp(1.75rem,3vw,2.7rem);text-wrap:balance}h3{font-size:1.45rem}p{margin-bottom:1.2em}em{font-family:Georgia,serif;font-weight:400}button{border:0}label{display:block}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:0;padding:12px;background:var(--white);color:var(--ink)}select{min-height:50px}textarea{min-height:108px;resize:vertical}[hidden]{display:none!important}.wrap{width:min(1320px,calc(100% - 96px));margin-inline:auto}.narrow{max-width:820px}.skip{position:absolute;top:-120px;left:16px;background:var(--ink);color:white;padding:10px;z-index:100}.skip:focus{top:10px}.masthead{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:24px 48px;border-bottom:1px solid var(--line);background:var(--paper);position:relative;z-index:10}.brand{display:flex;gap:13px;align-items:center;line-height:1.13;font-size:13px;letter-spacing:.07em;text-decoration:none}.brand b{font-size:21px;letter-spacing:-.035em}.brand-symbol{background:var(--red);color:var(--paper);width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-size:30px}.masthead nav{display:flex;gap:30px;align-items:center;font-size:14px;font-weight:bold}.masthead nav a{text-decoration:none}.masthead .language{border:1px solid var(--ink);padding:5px 10px}.eyebrow{font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:bold;line-height:1.5;margin-bottom:18px}.button,button[type=submit]{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;background:var(--ink);color:var(--paper);padding:15px 23px;font-size:14px;font-weight:bold;min-height:52px}.button:hover,button[type=submit]:hover{background:var(--red);color:var(--paper)}.button.light{background:var(--paper);color:var(--ink)}.text-link{font-size:14px;font-weight:bold}.hero{display:grid;grid-template-columns:1.55fr 1fr;position:relative;padding-top:40px}.hero-note{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.1em;margin-bottom:54px}.hero-note p{margin:0}.issue{border:1px solid var(--line);padding:8px 13px}.hero-copy{padding-bottom:60px;position:relative;z-index:2}.hero h1{font-size:clamp(2.9rem,6.6vw,6.3rem);letter-spacing:-.065em;line-height:1.02;max-width:850px;margin-bottom:28px}.hero h1 em{color:var(--red);letter-spacing:-.045em}.hero-copy>p{max-width:460px;color:var(--muted);font-size:18px;line-height:1.6}.hero-actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap}.hero-art{height:400px;position:relative;margin-top:-5px;margin-left:10px;isolation:isolate}.orb{border:1px solid var(--red);border-radius:50%;position:absolute;width:275px;height:275px;left:calc(50% - 138px);top:65px}.orb-1{transform:translate(-53px,-30px)}.orb-2{transform:translate(49px,22px)}.orb-3{background:var(--red);transform:translate(0,0);width:220px;height:220px;left:calc(50% - 110px);top:92px;z-index:1}.art-word{position:absolute;left:calc(50% - 64px);top:143px;z-index:2;color:var(--paper);font-size:35px;line-height:.98;letter-spacing:-.05em;font-weight:bold;transform:rotate(-8deg)}.art-arrow{position:absolute;right:8%;top:28px;font-size:100px;line-height:1}.hero-art .orb-1{animation:breathe 9s ease-in-out infinite}.hero-bottom{grid-column:1/-1;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;padding:17px 0;font-size:11px;text-transform:uppercase;letter-spacing:.08em}.section{padding-block:90px}.section-title{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}.section-title h2{margin-bottom:0}.section-title>a{font-size:13px;white-space:nowrap}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}.guide-card{position:relative;padding:30px 30px 56px;border:1px solid var(--line);margin:-1px 0 0 -1px;transition:background .2s}.guide-card:hover{background:var(--white)}.guide-card .eyebrow{display:flex;justify-content:space-between;color:var(--muted);margin-bottom:35px}.guide-card h3{margin-bottom:20px;text-wrap:balance}.guide-card h3 a{text-decoration:none}.guide-card h3 a:after{content:"";position:absolute;inset:0}.guide-card p:not(.eyebrow){font-size:14px;line-height:1.65;color:var(--muted);margin:0}.card-arrow{position:absolute;bottom:18px;right:24px;font-size:26px;color:var(--red)}.data-feature{background:var(--teal);color:var(--paper);padding:76px 0}.data-feature-inner{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:80px}.data-feature h2{font-size:3rem}.data-feature p{max-width:470px}.data-number{border-left:1px solid #789290;padding:10px 0 10px 70px}.data-number b{font-size:clamp(4rem,8vw,8rem);line-height:1;font-weight:400;letter-spacing:-.06em}.data-number b span{font-size:2.5rem}.data-number p{font-size:12px;margin-top:24px;line-height:1.8}.tools-teaser{background-image:linear-gradient(90deg,transparent 49%,var(--line) 49%,var(--line) 49.1%,transparent 49.1%);position:relative}.tools-teaser h2{max-width:640px}.tools-teaser>p:not(.eyebrow){max-width:490px}.history-teaser{padding:45px 0 65px;border-top:1px solid var(--line)}.history-teaser h2{font-family:Georgia,serif;font-weight:400;font-size:3rem;letter-spacing:-.03em}.history-teaser p:not(.eyebrow){max-width:760px}.footer{background:var(--ink);color:var(--paper);padding:65px 48px 28px}.footer-top{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding-bottom:35px;border-bottom:1px solid #555b54;max-width:1320px;margin-inline:auto}.footer-brand{font-family:Georgia,serif;font-size:3.3rem;line-height:1.1;letter-spacing:-.04em}.footer-top h2{font-size:1.4rem;line-height:1.3;letter-spacing:-.02em}.footer-top p:not(.footer-brand){font-size:14px;color:#c3c8be}.footer-top a{font-size:14px}.footer-links{display:flex;flex-wrap:wrap;gap:15px 28px;margin:28px auto;max-width:1320px;font-size:13px}.fine{font-size:12px;color:var(--muted);line-height:1.7}.footer .fine{color:#c3c8be;max-width:1320px;margin-inline:auto}.page-heading{padding-top:65px;padding-bottom:50px;border-bottom:1px solid var(--line)}.page-heading .lede{font-size:20px;line-height:1.65;max-width:850px;color:var(--muted);margin-bottom:0}.article-layout{display:grid;grid-template-columns:245px minmax(0,800px);gap:85px;padding-top:60px;padding-bottom:40px}.toc{font-size:13px;align-self:start;position:sticky;top:30px;border-top:1px solid var(--ink);padding-top:20px}.toc ol{padding-left:18px;margin:0 0 30px}.toc li{margin:12px 0}.toc a{color:var(--muted)}.article{font-size:18px;line-height:1.9}.article>section{margin-bottom:48px}.article h2{font-size:1.9rem;line-height:1.25;margin-top:20px;margin-bottom:20px}.article h3{font-size:1.4rem;line-height:1.35}.article ul{padding-left:22px}.article li{margin-bottom:12px}.article p{margin-bottom:1.5em}.narrow.article{padding-block:50px 70px}.method{margin:40px 0 50px}.method img{width:100%;border:1px solid var(--line)}figcaption{font-size:12px;color:var(--muted);line-height:1.6;margin-top:10px}.step-equivalent{display:flex;flex-wrap:wrap;gap:9px 25px;font-size:12px;padding-left:20px;margin-top:12px}.example{padding:28px;background:#ede5d4;border-left:3px solid var(--red)}.example p:last-child{margin:0}.checklist{border-top:1px solid var(--line);padding-top:20px}.checklist label{display:flex;gap:12px;align-items:baseline;font-size:15px;margin-bottom:13px}.checklist input{width:18px;height:18px;accent-color:var(--red);flex-shrink:0}.provenance{border-top:1px solid var(--line);padding-top:20px;font-size:13px;color:var(--muted);line-height:1.8;margin-top:30px}.sources ul{font-size:14px}.sources li{overflow-wrap:anywhere}.tool{padding:30px;background:var(--white);border:1px solid var(--line);margin:20px 0 45px;min-width:0}.tool h2{font-size:1.7rem;line-height:1.25}.tool form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.tool label{font-size:13px;line-height:1.5;font-weight:bold}.tool input,.tool textarea,.tool select{margin-top:8px;font-size:16px;font-weight:normal}.tool button{grid-column:1/-1;justify-self:start}.tool output{display:block;border-top:1px solid var(--line);padding-top:20px;margin-top:25px;font-size:19px;font-weight:bold;white-space:pre-line;line-height:1.5;overflow-wrap:anywhere}.tool output .search-preview{font-size:20px;color:#254a8a}.tool output small{font-size:13px;font-weight:normal;color:var(--muted)}.tool .fine{margin:16px 0 0}.workshop{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;padding-block:40px 65px}.workshop .tool{margin:0}.library-controls{display:flex;gap:25px;align-items:end;margin-bottom:40px;flex-wrap:wrap}.library-controls label{font-size:13px;flex:2;min-width:190px}.library-controls label+label{flex:1}.library-controls input,.library-controls select{margin-top:8px}.library-controls p{font-size:12px;margin-bottom:12px}.region-select{font-size:14px;max-width:420px;margin-block:35px}.region-select select{margin-top:8px}.market-panel{padding:30px;background:var(--white);margin-bottom:30px;border:1px solid var(--line);min-width:0}.market-panel h2{font-size:2rem}.market table{width:100%;border-collapse:collapse}.market caption{font-size:12px;text-align:left;margin-bottom:20px;color:var(--muted)}th,td{text-align:left;padding:14px 10px;border-bottom:1px solid var(--line)}thead th{font-size:12px;color:var(--muted);font-weight:normal}tbody th{font-size:14px}tbody td{font-size:14px}meter{width:100%;min-width:80px;height:13px;accent-color:var(--red)}meter::-webkit-meter-bar{background:#eae5d8;border:0;border-radius:0}meter::-webkit-meter-optimum-value{background:var(--red)}.market .article{max-width:800px;padding-block:25px 65px}.archive-index{padding-block:35px 65px}.search-label{max-width:650px;font-size:13px}.search-label input{margin-top:8px}.archive-index>p{font-size:13px}.archive-index>ul{list-style:none;padding:0;margin:40px 0}.archive-index li{display:grid;grid-template-columns:120px minmax(0,1fr);gap:25px;padding:20px 0;border-bottom:1px solid var(--line)}.archive-index time{font-size:12px;color:var(--muted)}.archive-index li a{font-size:17px;text-decoration:none;line-height:1.35}.archive-index li span{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-top:8px}.record{font-size:14px;display:grid;grid-template-columns:180px minmax(0,1fr);gap:16px;margin-bottom:40px}.record dt{font-weight:bold}.record dd{margin:0}.break{overflow-wrap:anywhere}.record-related{padding:24px;border:1px solid var(--line)}.record-related>div+div{border-top:1px solid var(--line);padding-top:20px}.glossary{padding-block:45px 70px}.glossary-entry{border-bottom:1px solid var(--line);padding:25px 0}.glossary-entry h2{font-size:1.7rem}.glossary-entry p{font-size:17px;margin-bottom:0}.sitemap{padding-bottom:60px}.sitemap li{margin:12px 0}.sitemap table{width:100%;border-collapse:collapse;table-layout:fixed}.sitemap td:first-child{width:80%;overflow-wrap:anywhere}.sitemap td{font-size:12px}.sitemap td:last-child{width:110px}.sitemap ul{padding-left:20px}@keyframes breathe{0%,100%{transform:translate(-53px,-30px)}50%{transform:translate(-40px,-21px)}}
@media(min-width:1500px){.hero-copy>p{font-size:20px}.hero-art{height:440px}}
@media(max-width:1050px){.wrap{width:calc(100% - 64px)}.masthead{padding:22px 32px}.masthead nav{gap:20px}.hero h1{font-size:clamp(3rem,6.5vw,5rem)}.hero-art{transform:scale(.85);transform-origin:center}.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:195px minmax(0,1fr);gap:40px}.data-feature-inner{gap:40px}.data-number{padding-left:35px}.data-feature h2{font-size:2.4rem}.footer{padding-inline:32px}}
@media(max-width:720px){html{scroll-padding-top:20px}.wrap{width:calc(100% - 40px)}.masthead{padding:18px 20px;display:block}.brand{font-size:10px;width:max-content}.brand b{font-size:17px}.brand-symbol{width:36px;height:36px;font-size:24px}.masthead nav{margin-top:20px;gap:0;justify-content:space-between;font-size:11px}.masthead .language{padding:4px 8px}.hero{padding-top:24px;grid-template-columns:1fr}.hero-note{margin-bottom:35px;font-size:9px;gap:10px;align-items:start}.hero-note p{max-width:130px;text-align:right}.issue{padding:6px 8px}.hero h1{font-size:clamp(2.65rem,10.9vw,4.8rem);line-height:1.05;letter-spacing:-.06em}.hero-copy{padding-bottom:20px}.hero-copy>p{font-size:16px}.hero-actions{gap:18px}.button,button[type=submit]{padding:14px 17px;font-size:12px}.hero-art{height:245px;transform:scale(.7);margin-top:-45px;margin-bottom:-20px;margin-left:0;transform-origin:center center}.art-arrow{right:0;top:30px}.hero-bottom{font-size:8px;gap:20px;padding:13px 0}.hero-bottom span:nth-child(2){display:none}.section{padding-block:55px}.section-title{display:block;margin-bottom:28px}.section-title>a{display:inline-block;margin-top:18px}.section-title h2{font-size:2rem}.guide-grid{grid-template-columns:1fr}.guide-card{padding:24px 24px 53px;margin:-1px 0 0}.guide-card .eyebrow{margin-bottom:24px}.guide-card h3{font-size:1.5rem}.data-feature{padding-block:50px}.data-feature-inner{grid-template-columns:1fr;gap:35px}.data-feature h2{font-size:2.3rem}.data-feature p{font-size:15px}.data-number{border-left:0;border-top:1px solid #789290;padding:30px 0 0}.data-number b{font-size:5.3rem}.data-number p{margin-top:16px;margin-bottom:0}.tools-teaser{background:none}.history-teaser{padding-block:35px 45px}.history-teaser h2{font-size:2.25rem}.history-teaser p{font-size:15px}.footer{padding:45px 20px 25px}.footer-top{grid-template-columns:1fr;gap:15px}.footer-brand{font-size:2.5rem;margin-bottom:14px}.footer-links{gap:14px 22px;font-size:12px}.page-heading{padding-block:40px 30px}.page-heading h1{font-size:2.25rem;line-height:1.13;overflow-wrap:break-word}.page-heading .lede{font-size:17px}.article-layout{display:block;padding-top:35px;padding-bottom:20px}.toc{position:static;padding-top:16px;margin-bottom:36px}.toc ol{display:flex;flex-wrap:wrap;gap:8px 30px;margin-bottom:20px}.toc li{margin:0}.article{font-size:17px;line-height:1.85}.article h2{font-size:1.65rem}.article>section{margin-bottom:36px}.step-equivalent{display:grid;grid-template-columns:1fr 1fr;font-size:11px;gap:8px 25px}.method{margin:25px 0 35px}.example{padding:20px}.tool{padding:20px;margin-bottom:35px}.tool form{grid-template-columns:1fr;gap:16px}.tool h2{font-size:1.5rem}.tool output{font-size:17px}.workshop{grid-template-columns:1fr;padding-block:30px 45px;gap:20px}.library-controls{gap:20px;margin-bottom:30px}.library-controls label{min-width:100%;flex:1}.library-controls p{margin:0}.market-panel{padding:20px 12px}.market th,.market td{padding:12px 5px;font-size:12px}.market thead th{font-size:10px}.market td:nth-child(2){white-space:nowrap}.market td:last-child{width:35%}.market caption{font-size:10px}.market-panel h2{font-size:1.6rem;margin-left:5px}.region-select{margin-block:28px}.archive-index li{grid-template-columns:1fr;gap:5px;padding-block:17px}.archive-index li a{font-size:15px}.record{grid-template-columns:1fr;gap:5px}.record dd{margin-bottom:15px}.record-related{padding:18px}.narrow.article{padding-block:30px 45px}.sitemap ul{padding-left:18px}.sitemap li{font-size:15px}.sitemap td{padding:10px 5px;font-size:10px}.glossary-entry p{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.tool-note{position:absolute;left:57%;top:110px;right:5%;border:1px solid var(--line);padding:28px;background:var(--white);transform:rotate(3deg)}.tool-note p{font-family:Georgia,serif;font-size:35px;line-height:1.5;margin:20px 0 0}.tool-note p span{color:var(--red);font-size:24px}.tool-note strong{display:block;border-top:1px solid var(--line);margin-top:16px;padding-top:12px;font-size:45px;line-height:1.3;letter-spacing:-.04em}.tool-note small{display:block;font-size:11px;color:var(--muted);margin-top:8px}@media(max-width:720px){.tool-note{position:relative;left:auto;right:auto;top:auto;margin:40px 6px 0;padding:24px;transform:rotate(1deg)}.tool-note strong{font-size:36px}.tool-note p{font-size:30px}}
@media(max-width:720px){.hero-art{height:285px;transform:none;margin-top:0;margin-bottom:20px;margin-left:0}.hero-art .orb{width:195px;height:195px;left:calc(50% - 97.5px);top:40px}.hero-art .orb-1{animation:none;transform:translate(-33px,-18px)}.hero-art .orb-2{transform:translate(33px,20px)}.hero-art .orb-3{width:165px;height:165px;left:calc(50% - 82.5px);top:55px;transform:none}.art-word{font-size:25px;left:calc(50% - 47px);top:96px}.art-arrow{font-size:72px;top:10px;right:0}}