:root{--ink:#173b3f;--muted:#556d6d;--teal:#14796b;--paper:#f7f5ef;--line:#d9e2db;--pale:#eaf1e9;--white:#fff;--gold:#a46c25;--serif:Georgia,'Times New Roman',serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}a{color:var(--teal);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input,select{font:inherit;color:inherit}button{cursor:pointer}a,button,input,select{outline-offset:5px}:focus-visible{outline:3px solid #b37731}[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.2}h1{font-family:var(--serif);font-weight:400;letter-spacing:-1.7px}h2{font-family:var(--serif);font-size:29px;font-weight:400;letter-spacing:-.4px}p{color:var(--muted)}.skip{position:absolute;left:12px;top:-80px;background:var(--white);padding:12px;z-index:9}.skip:focus{top:10px}.site-header{border-bottom:1px solid var(--line);background:#fcfdf9}.header-inner{max-width:1280px;margin:auto;padding:24px 40px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font:23px/1.15 var(--serif)}.mark{display:grid;place-items:center;border:1px solid #a1bbb0;width:43px;height:43px;border-radius:50%;font-size:32px;color:var(--teal)}.brand-sub{display:block;font:9px/1.5 system-ui,sans-serif;letter-spacing:1.8px;margin-top:6px}.site-header nav{display:flex;align-items:center;gap:25px;font-size:13px;flex-wrap:wrap}.site-header nav a{text-decoration:none;color:var(--ink)}.site-header nav a:hover{text-decoration:underline}.home-link{padding-left:20px;border-left:1px solid var(--line)}.page-wrap{max-width:1280px;margin:auto;padding:0 40px 60px}.hero{display:grid;grid-template-columns:1fr 250px;gap:60px;align-items:center;padding:72px 0 62px;border-bottom:1px solid var(--line)}.eyebrow{font:600 10px/1.7 system-ui,sans-serif;color:var(--teal);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:18px;display:block}.hero h1{font-size:68px;line-height:1.08;margin-bottom:24px}.hero h1 em{font-weight:400;color:var(--teal)}.hero-copy{max-width:635px;font-size:17px;line-height:1.8;margin-bottom:24px}.text-link{font-size:14px;font-weight:600;text-decoration:none}.text-link span{margin-left:18px}.atlas-count{border-left:1px solid var(--line);padding:12px 0 8px 45px;display:flex;flex-direction:column}.big-number{font:106px/1 var(--serif);letter-spacing:-8px;color:var(--ink)}.atlas-count>span:nth-child(2){font-size:10px;letter-spacing:2px;margin-top:12px}.atlas-count p{font-size:13px;line-height:1.9;margin:22px 0 0}.browse{padding-top:40px}.section-heading{display:flex;justify-content:space-between;gap:25px;align-items:center;margin-bottom:22px}.section-heading h2{margin:0}.section-heading a{font-size:12px}.filters{display:grid;grid-template-columns:minmax(200px,1.6fr) minmax(170px,1fr) minmax(170px,1fr) auto;gap:16px;align-items:end;background:var(--pale);border:1px solid var(--line);padding:22px}.filters label{display:block;font-size:11px;font-weight:600;margin-bottom:8px}.filters input,.filters select{width:100%;min-width:0;height:45px;border:1px solid #baccc1;border-radius:3px;background:white;padding:8px 11px;font-size:13px}.filters button{border:1px solid #b6c9bd;background:transparent;border-radius:3px;padding:10px 15px;height:45px;font-size:12px}.filters button:hover{background:white}.results-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:22px 0 10px;font-size:12px}.results-bar p{margin:0}.results-bar label{color:var(--muted);margin-right:8px}.results-bar select{font-size:12px;background:transparent;border:0;padding:5px}.article-list{display:grid;grid-template-columns:1fr 1fr;gap:0 45px;list-style:none;margin:0;padding:0}.article-row{border-bottom:1px solid var(--line);padding:28px 0 22px;min-width:0}.row-top{display:flex;gap:15px;align-items:center;font-size:10px;letter-spacing:.6px;color:var(--muted);margin-bottom:13px}.row-top span:first-child{font-variant-numeric:tabular-nums;color:var(--teal);font-weight:600}.article-row h3{font:26px/1.22 var(--serif);margin:0 0 14px;letter-spacing:-.3px}.article-row h3 a{color:var(--ink);text-decoration:none}.article-row h3 a:hover{color:var(--teal);text-decoration:underline}.article-row p{font-size:13px;line-height:1.85;margin:0 0 18px}.row-bottom{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.row-bottom span:last-child{font-size:18px;color:var(--teal)}.atlas-note{margin-top:55px;padding:35px;background:var(--pale);display:grid;grid-template-columns:1fr 1.2fr;gap:35px}.atlas-note h2{margin:0}.atlas-note p:last-child{font-size:14px;margin:0;line-height:1.9}.atlas-note .eyebrow{margin-bottom:12px}.site-footer{max-width:1200px;margin:0 auto;padding:30px 0 40px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:25px;font-size:11px;color:var(--muted)}.site-footer strong{font-weight:500;color:var(--ink)}.site-footer p{margin:5px 0}.site-footer>div:last-child{text-align:right}.breadcrumbs{display:flex;gap:13px;flex-wrap:wrap;margin:35px 0 32px;font-size:12px}.breadcrumbs a{text-decoration:none}.breadcrumbs span{color:#9aaea7}.article-layout{display:grid;grid-template-columns:minmax(0,790px) 260px;gap:70px;align-items:start}.article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:11px;margin-bottom:23px}.article-id{font-weight:650;letter-spacing:1px;color:var(--teal)}.status{background:var(--pale);border:1px solid var(--line);padding:3px 8px;border-radius:3px;color:var(--teal);font-size:10px}.article h1{font-size:49px;line-height:1.14;margin-bottom:25px;overflow-wrap:anywhere}.article-lead{font-size:20px;line-height:1.75;color:#405d5d;margin-bottom:35px}.article section{margin:36px 0}.article section h2{font-size:26px;margin-bottom:14px}.article section>p{font-size:15px;line-height:1.85}.article .expansion{padding:25px 28px;background:var(--pale);border-top:3px solid var(--teal)}.expansion .small{font-size:12px;margin-bottom:15px}.expansion ol{padding-left:21px;margin:0}.expansion li{padding-left:6px;margin:12px 0;font-size:15px;line-height:1.8}.source-box{border:1px solid var(--line);background:#fcfdf9;padding:23px}.source-box .eyebrow{font-size:9px;margin-bottom:12px}.source-box h3{font:20px/1.4 var(--serif);margin-bottom:12px;overflow-wrap:anywhere}.source-box p{font-size:12px;line-height:1.8;margin-bottom:12px}.source-box .small-link{font-size:11px}.file-reference code,code{overflow-wrap:anywhere;white-space:normal;font-size:11px}.editorial-note{font-size:11px;line-height:1.9;border-left:2px solid #b4c9ba;padding-left:14px;margin:30px 0}.article-pagination{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px;font-size:12px}.article-aside{padding-top:9px}.article-aside .eyebrow{font-size:9px;margin-bottom:15px}.article-aside h2{font-size:24px}.article-aside ul{list-style:none;margin:0 0 24px;padding:0}.article-aside li{padding:17px 0;border-bottom:1px solid var(--line)}.article-aside li span{display:block;font-size:10px;color:var(--muted);margin-bottom:5px}.article-aside li a{font-size:13px;line-height:1.65;text-decoration:none;color:var(--ink)}.article-aside li a:hover{text-decoration:underline}.topic-link{font-size:11px}.aside-note{padding:20px;background:var(--pale);margin-top:32px;font-size:12px}.aside-note p{margin:9px 0 12px}.page-intro{padding:63px 0 32px;max-width:820px}.page-intro h1{font-size:57px;margin-bottom:22px}.page-intro>p:last-child{font-size:17px;line-height:1.85}.reading-paths{display:grid;grid-template-columns:1fr 1fr;gap:30px 50px}.reading-path{display:flex;gap:20px;padding:30px 0;border-top:1px solid var(--line)}.path-number{font:25px var(--serif);color:var(--teal);padding-top:3px}.reading-path>div{min-width:0}.reading-path h2{font-size:27px}.reading-path p{font-size:13px}.reading-path ol{padding-left:22px}.reading-path li{padding:7px 0 7px 2px;font-size:13px}.reading-path li span{font-size:10px;color:var(--muted);margin-right:9px}.source-jumps{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}.source-jumps a{background:var(--pale);border:1px solid var(--line);padding:8px 14px;text-decoration:none;font-size:12px}.source-intro{max-width:820px;font-size:13px}.source-group{padding-top:35px;scroll-margin-top:25px}.source-group>h2{border-bottom:1px solid var(--line);padding-bottom:15px}.source-group>h2>span{font:13px system-ui,sans-serif;color:var(--muted);margin-left:15px}.source-entry{max-width:880px;padding:24px 0;border-bottom:1px solid var(--line);scroll-margin-top:25px}.source-entry h3{font:23px/1.35 var(--serif);margin-bottom:12px}.source-entry .eyebrow{font-size:9px;margin-bottom:10px}.source-entry p{font-size:12px;line-height:1.8;margin-bottom:10px}.used-by{font-size:11px}.used-by strong{font-weight:500;margin-right:8px}.notice{padding:20px;border:1px solid var(--line);background:var(--pale);font-size:14px}
@media(max-width:1100px){.header-inner,.page-wrap{padding-left:28px;padding-right:28px}.site-footer{margin-left:28px;margin-right:28px}.article-layout{gap:35px;grid-template-columns:minmax(0,1fr) 230px}.hero{gap:35px}.hero h1{font-size:59px}.article h1{font-size:43px}.filters{gap:12px;padding:18px}.article-list{gap:0 30px}}
@media(max-width:800px){.header-inner{align-items:flex-start;padding-top:20px;padding-bottom:20px;flex-direction:column;gap:20px}.site-header nav{gap:20px;font-size:12px}.hero{grid-template-columns:1fr 180px;gap:20px;padding-top:45px;padding-bottom:40px}.hero h1{font-size:49px}.hero-copy{font-size:15px}.atlas-count{padding-left:26px}.big-number{font-size:78px;letter-spacing:-5px}.atlas-count p{font-size:12px}.filters{grid-template-columns:1fr 1fr}.search-field{grid-column:1/-1}.filters button{grid-column:1/-1;width:max-content}.article-layout{grid-template-columns:1fr}.article-aside{border-top:1px solid var(--line);padding-top:30px}.article-aside ul{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.aside-note{max-width:450px}.article h1{font-size:43px}.reading-paths{grid-template-columns:1fr;gap:8px}.page-intro h1{font-size:48px}.site-footer{font-size:10px}.atlas-note{gap:20px;padding:25px}.article-row h3{font-size:24px}}
@media(max-width:540px){.header-inner,.page-wrap{padding-left:20px;padding-right:20px}.hero{display:block;padding-top:37px}.hero h1{font-size:43px;letter-spacing:-1px}.hero .eyebrow{font-size:8px}.atlas-count{margin-top:30px;border-left:0;border-top:1px solid var(--line);padding:20px 0 0;display:grid;grid-template-columns:auto 1fr;align-items:center;column-gap:24px}.big-number{font-size:61px;grid-row:1/3}.atlas-count>span:nth-child(2){margin:0}.atlas-count p{margin:5px 0 0;line-height:1.65}.section-heading{align-items:flex-start;flex-direction:column;gap:10px}.section-heading h2{font-size:27px}.filters{grid-template-columns:1fr;padding:16px}.search-field,.filters button{grid-column:auto}.article-list{grid-template-columns:1fr}.article-row{padding-top:25px}.atlas-note{grid-template-columns:1fr;gap:15px}.atlas-note p:last-child{font-size:13px}.site-footer{margin:0 20px;flex-direction:column;gap:15px}.site-footer>div:last-child{text-align:left}.home-link{padding-left:0;border:0}.site-header nav{gap:16px}.article-meta{gap:12px;font-size:10px}.article h1{font-size:37px;letter-spacing:-.9px}.article-lead{font-size:18px}.article .expansion{padding:21px}.article-aside ul{grid-template-columns:1fr;gap:0}.page-intro{padding-top:40px}.page-intro h1{font-size:41px}.page-intro>p:last-child{font-size:15px}.reading-path{gap:15px}.reading-path h2{font-size:25px}.results-bar{font-size:11px}.row-top{font-size:9px}.source-entry h3{font-size:21px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.article-contents{padding:23px 27px;background:var(--pale);border:1px solid var(--line);margin:30px 0 38px;font-size:13px}.article-contents summary{cursor:pointer;font-weight:600;color:var(--ink);font-size:14px}.article-contents ol{padding-left:20px;margin:16px 0}.article-contents li{padding:4px 0 4px 5px}.article-contents a{text-decoration:none}.article-contents a:hover{text-decoration:underline}.article-contents> a{font-size:12px}.article-section{scroll-margin-top:24px}.article .article-section{margin:42px 0}.article .article-section>p{font-size:16px;line-height:1.9;color:#3d595a;overflow-wrap:break-word}.article .article-section h2{font-size:28px;line-height:1.35;margin-bottom:20px}.section-number{display:block;font:600 10px/1.5 system-ui,sans-serif;letter-spacing:1.2px;color:var(--teal);margin-bottom:8px}.equations{margin:24px 0;padding:19px 22px;background:#edf2ec;border-left:3px solid #569a8b}.equation{font:17px/1.9 'Cambria Math','STIX Two Math',Georgia,serif;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--ink);padding:4px 0}.body-list{padding-left:22px;font-size:15px;line-height:1.85;color:#3d595a}.body-list li{margin:10px 0}.article-figure{margin:35px 0;background:#fcfdf9;border:1px solid var(--line);padding:12px 12px 18px;break-inside:avoid}.figure-image{display:block}.article-figure img{display:block;width:100%;height:auto}.article-figure figcaption{font-size:12px;line-height:1.85;padding:12px 10px 0;color:var(--muted)}.article-figure figcaption strong{font-weight:600;color:var(--ink)}.article-figure figcaption a{white-space:nowrap}.table-scroll{overflow-x:auto;margin:25px 0}.table-scroll table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.7}.table-scroll caption{text-align:left;color:var(--muted);font-size:11px;padding:0 0 10px}.table-scroll th,.table-scroll td{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.table-scroll th{background:var(--pale);font-weight:600}.takeaways{padding:27px 30px;background:var(--pale);border-top:3px solid var(--teal);scroll-margin-top:25px}.takeaways .eyebrow{margin-bottom:12px}.takeaways ul{padding-left:20px;margin-bottom:0;font-size:14px;line-height:1.85}.takeaways li{padding-left:5px;margin:12px 0}.scope-note{font-size:12px;line-height:1.85;padding-left:16px;border-left:2px solid #aabfb0;color:var(--muted)}.scope-note strong{color:var(--ink)}.article-references{padding-left:22px;font-size:13px;line-height:1.8}.article-references li{padding-left:5px;margin:17px 0;overflow-wrap:anywhere}.reference-locator{display:block;color:var(--muted);font-size:12px;margin-top:4px}.source-details{font-size:12px;margin-top:25px}.source-details summary{cursor:pointer;color:var(--teal);padding-bottom:13px}.source-details .source-box+.source-box{margin-top:12px}.figure-gallery{display:grid;grid-template-columns:1fr 1fr;gap:30px}.gallery-card{min-width:0}.gallery-card .article-figure{margin:0}.figure-uses{font-size:11px;line-height:1.9;padding:12px 15px;margin:0}.figure-uses strong{font-weight:500;margin-right:7px}.hero h1{font-size:62px}.article-aside{position:sticky;top:25px}.article-aside .aside-note:last-child{margin-top:20px}
@media(max-width:1100px){.hero h1{font-size:54px}.article-aside{position:static}}
@media(max-width:800px){.hero h1{font-size:46px}.figure-gallery{grid-template-columns:1fr}.article-aside{position:static}}
@media(max-width:540px){.hero h1{font-size:42px}.article-contents{padding:20px}.article .article-section h2{font-size:25px}.article .article-section>p{font-size:15px;line-height:1.85}.article-figure{padding:5px 5px 14px;margin:28px 0}.article-figure figcaption{font-size:11px;padding:10px 10px 0}.equations{padding:15px}.equation{font-size:15px}.takeaways{padding:22px}.table-scroll th,.table-scroll td{padding:9px;min-width:100px}.article-contents ol{padding-left:17px}}
@media print{.article-contents{display:none}.article .article-section{break-inside:auto}.article-figure{max-width:650px;margin:20px auto}.equations,.takeaways{break-inside:avoid}.article .article-section>p{font-size:11pt}.figure-gallery{display:block}.gallery-card{break-inside:avoid}.scope-note{font-size:9pt}.article-references{font-size:9pt}.source-details:not([open]){display:none}}
@media print{body{background:white;color:black;font-size:11pt}.site-header,.site-footer,.article-aside,.filters,.article-pagination,.source-jumps{display:none}.page-wrap{max-width:none;padding:0}.article-layout{display:block}.article h1{font-size:29pt}.article-lead{font-size:13pt}.article section{break-inside:avoid}.article-list{display:block}.article-row{break-inside:avoid}.reading-paths{display:block}.hero{padding:20px 0}.hero h1{font-size:35pt}.atlas-count{display:none}.source-box{padding:15px}.article-layout .article{max-width:none}a{color:inherit}}