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var(--serif);letter-spacing:-1px;margin-top:12px}.latin{font-size:11px;margin-top:8px;color:var(--muted);font-style:italic}.region-description{font-size:13px;color:var(--muted);margin-top:20px}.region-facts{display:grid;grid-template-columns:1fr 1fr;border-block:1px solid var(--line);gap:14px;margin:22px 0 20px;padding:14px 0}.region-facts dt{font-size:9px;letter-spacing:1px;color:var(--muted);text-transform:uppercase;margin-bottom:6px}.region-facts dd{margin:0;font-size:12px}.primary-button{background:var(--ink);color:#fff;padding:14px 18px;font-size:12px;display:flex;justify-content:space-between;align-items:center;width:100%;border:1px solid var(--ink);transition:background .2s}.primary-button:hover{background:#425d49}.region-navigation{margin-top:auto;padding-top:26px}.region-navigation .caption{font-size:9px;color:var(--muted)}#region-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.chip{font-size:10px;padding:7px 10px;border:1px solid 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0}.reader-meta{font-size:11px;color:var(--muted);padding-bottom:22px;border-bottom:1px solid var(--line)}.reader-body p{font-size:15px;line-height:1.8;margin:18px 0;color:#4b5e50}.reader-body h3{font:400 26px var(--serif);margin:30px 0 12px}.reader-body ol,.reader-body ul{padding-left:22px;font-size:14px;line-height:1.8;color:#4b5e50}.reader-body li{padding-left:6px;margin:10px 0}.reader-body a{border-bottom:1px solid #9eae94}.reader-body .guide-visual{height:220px;margin:24px 0}.reader-callout{padding:17px 20px;background:#edf0e6;border-left:2px solid #8d9e7f;font-size:13px;line-height:1.8;margin-top:20px}.reader-callout strong{display:block}.reader-sources{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;font-size:12px;line-height:1.9}.reader-sources a{display:block;overflow-wrap:anywhere;text-decoration:underline;text-underline-offset:3px}.skip{position:absolute;top:-100px;left:20px;background:var(--ink);color:white;padding:12px;z-index:10}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}
@media(min-width:1450px){.hero{padding-top:80px;padding-bottom:76px}}
@media(max-width:1000px){.site-header{padding-inline:28px}nav{gap:18px}.header-link{display:none}.wrap{padding-inline:26px}.hero{grid-template-columns:1.2fr 1fr;gap:25px}h1{font-size:62px}.atlas-shell{grid-template-columns:1.2fr 1fr}.region-panel{padding:26px 22px}.anatomy-board{padding-inline:15px}.board-top .caption{font-size:8px;letter-spacing:.7px}.tool-card{padding-inline:17px}.tool-object{max-width:120px}.tool-grid{grid-template-columns:repeat(2,1fr)}.tool-card:nth-child(2){border-right:0}.tool-card:nth-child(-n+2){border-bottom:1px solid var(--line)}.site-footer>span{display:none}}
@media(max-width:700px){html{scroll-padding-top:20px}.site-header{padding:20px;flex-wrap:wrap;gap:17px}.brand{font-size:23px}.site-header nav{width:100%;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;font-size:12px}.wrap{padding-inline:20px}.hero{display:block;padding-top:37px;padding-bottom:40px}h1{font-size:57px;letter-spacing:-2.8px}.hero-intro{margin-top:23px}.hero-intro p{font-size:14px}.desktop-break{display:none}.hero-intro .text-link{margin-top:16px}.section-top{display:block;margin-bottom:22px}.section-top p{margin-top:12px;font-size:12px}h2{font-size:30px}.index{font-size:9px;margin-bottom:10px}.atlas-shell{display:block}.anatomy-board{padding:18px 14px 14px}.diagram{min-height:410px}.diagram svg{height:420px}.board-bottom{font-size:8px}.region-panel{padding:24px}.region-panel h3{font-size:34px}.region-description{font-size:13px}.region-detail-label{margin-top:20px}.region-navigation{padding-top:22px}.atlas-note{align-items:flex-start;flex-wrap:wrap;gap:10px}.atlas-note p{flex:1;font-size:10px}.atlas-note button{width:100%;padding-left:26px;margin:0;text-align:left}.library,.tools{padding-block:45px}.library-controls{flex-wrap:wrap;gap:10px;margin:22px 0}.search-field{width:100%}.tool-filter select{font-size:11px;padding:11px 28px 11px 12px}.guide-grid{grid-template-columns:repeat(2,1fr);gap:12px}.guide-visual{height:135px}.guide-copy{padding:15px}.guide-copy h3{font-size:24px}.guide-copy p{font-size:11px;min-height:56px}.guide-copy .caption{font-size:8px;letter-spacing:.5px}.guide-tag{font-size:8px;left:9px;top:9px}.guide-bottom{font-size:9px;margin-top:16px}.learn-band{padding-block:43px}.article-grid{grid-template-columns:1fr;gap:32px}.article-art{height:155px;margin-bottom:16px}.article-card h3{font-size:28px}.article-card h3 br{display:none}.article-bottom{margin-top:15px}.tool-card{padding:20px 15px}.tool-card h3{font-size:22px}.tool-card p{font-size:11px;min-height:55px}.tool-card .caption{font-size:8px;letter-spacing:.5px}.about{display:block;padding-block:40px}.about-symbol{font-size:80px;text-align:left;margin-bottom:23px}.about p{font-size:13px}.site-footer{flex-wrap:wrap;gap:20px;padding-block:24px}.site-footer>div{width:100%;justify-content:space-between}#reader-content{padding:26px 23px 30px}#reader-title{font-size:34px}.reader-top{padding:12px 16px}.reader-body p{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
/* Expanded library: pages, research, reading lists and original video. */
.library-stats{grid-column:1/-1;display:flex;gap:28px;padding-top:22px;border-top:1px solid var(--line);margin-top:0;font-size:11px;color:var(--muted)}.library-stats strong{font:400 25px var(--serif);color:var(--ink);margin-right:6px}.hero{row-gap:34px}.region-guide-link{display:flex;justify-content:space-between;gap:10px;font-size:11px;padding:13px 0;border-bottom:1px solid var(--line)}.region-guide-link:hover{color:var(--accent)}.region-navigation{padding-top:22px}#region-chips{max-height:110px;overflow:auto;padding:4px}.hotspot text{font-size:12px}.library-controls{flex-wrap:wrap}.search-field{flex:1;min-width:250px}.clear-filters{font-size:11px;text-decoration:underline;text-underline-offset:3px}.guide-card{height:100%}.guide-copy{display:flex;flex-direction:column;flex:1}.guide-copy .caption{text-transform:uppercase;line-height:1.5}.guide-bottom{margin-top:auto;padding-top:14px}.guide-copy p{margin-bottom:17px}.guide-grid{row-gap:22px}.research-band{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding-top:15px;padding-bottom:75px}.research-band h2{font-size:43px}.research-band p{font-size:14px;color:var(--muted);margin:20px 0 27px;max-width:440px}.research-band .primary-button{width:max-content;gap:45px}.research-preview{border-top:1px solid var(--line);padding-top:17px}.research-preview>a{display:grid;grid-template-columns:1fr auto;gap:5px;padding:14px 0;border-bottom:1px solid var(--line)}.research-preview>a span{font:400 22px var(--serif)}.research-preview small{grid-row:2;font-size:10px;color:var(--muted)}.research-preview b{grid-column:2;grid-row:1/3;align-self:center;font-weight:400}.more-reading{display:grid;grid-template-columns:repeat(2,1fr);gap:0 30px;margin-top:40px;border-top:1px solid #c4cdbd}.more-reading a{font:400 22px var(--serif);padding:21px 0;border-bottom:1px solid #c4cdbd}.more-reading span{display:block;font:10px var(--sans);color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:7px}.shelf-link{margin-top:25px}.atlas-note>a{font-size:10px;white-space:nowrap;margin-left:auto;text-decoration:underline;text-underline-offset:4px}.video-section{display:grid;grid-template-columns:1.4fr .7fr;gap:80px;align-items:center;padding-top:0;padding-bottom:70px}.video-copy{max-width:540px}.video-copy h2{font-size:54px;letter-spacing:-1.8px}.video-copy>p{margin-top:24px;font-size:15px;color:var(--muted)}.video-copy p.video-note{font-size:11px}.video-section video{width:100%;max-width:285px;height:auto;max-height:510px;display:block;background:#0b1d23;border-radius:5px;justify-self:center}.video-transcript{margin-top:24px;border-block:1px solid var(--line);font-size:12px}.video-transcript summary{cursor:pointer;padding:15px 0}.video-transcript p{padding-bottom:16px;color:var(--muted)}.video-transcript a{text-decoration:underline}.page-main{padding-bottom:75px;min-height:70vh}.breadcrumbs{padding-top:30px;display:flex;flex-wrap:wrap;gap:10px;font-size:11px;color:var(--muted)}.breadcrumbs a{text-decoration:underline;text-underline-offset:3px}.page-heading{padding-top:46px;padding-bottom:32px;max-width:880px}.page-heading h1{font-size:clamp(40px,4.5vw,64px);letter-spacing:-2px;line-height:1.06;margin-top:0}.page-heading>p{max-width:700px;color:var(--muted);font-size:17px;margin-top:20px;line-height:1.65}.page-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;border-bottom:1px solid var(--line);padding:0 0 24px;margin-bottom:35px}.action-button{border:1px solid #bdc9b5;padding:10px 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@media(max-width:700px){.hero .library-stats{margin-top:25px;gap:17px;justify-content:space-between;flex-wrap:wrap}.library-stats a{font-size:9px}.library-stats strong{font-size:23px;display:block;margin-bottom:4px}.region-panel{padding:22px}.diagram svg{height:480px}.diagram{min-height:480px}.hotspot text{font-size:13px}.research-band{display:block;padding-top:10px;padding-bottom:45px}.research-band h2{font-size:35px}.research-band .primary-button{max-width:100%;gap:20px}.research-preview{margin-top:30px}.more-reading{grid-template-columns:1fr}.more-reading a{font-size:23px}.video-section{grid-template-columns:1fr;gap:28px;padding-bottom:45px}.video-copy h2{font-size:42px}.video-section video{max-width:270px}.video-copy>p{font-size:14px}.page-heading{padding-top:33px;padding-bottom:27px}.page-heading h1{font-size:43px;letter-spacing:-1.5px}.page-heading>p{font-size:15px}.breadcrumbs{font-size:10px;padding-top:24px;gap:7px}.reading-layout{display:block}.reading-sidebar{border-left:0;border-top:1px solid var(--line);padding:27px 0 0;margin-top:35px}.page-actions{margin-bottom:26px}.reader-body .region-facts{grid-template-columns:repeat(2,1fr)}.reader-body .region-facts>div:last-child{grid-column:1/-1}.reader-body h2{font-size:28px}.steps li{font-size:14px}.region-index-grid,.reading-grid{grid-template-columns:1fr;gap:14px}.reading-card{padding:25px}.reading-card h2,.reading-card h3{font-size:29px}.research-intro{display:block}.research-intro a{margin-top:20px}.directory-controls{gap:12px}.directory-controls label:first-child{flex-basis:100%}.directory-controls select{max-width:100%;font-size:12px}.research-topic summary{gap:10px;padding:18px 4px}.research-topic summary strong{font-size:21px}.topic-source-count{font-size:9px}.topic-number{width:25px;font-size:9px}.topic-content{padding:5px 16px 20px}.source-index{grid-template-columns:1fr}.research-topic[open] summary{padding-inline:10px}.atlas-note>a{margin:0;padding-left:27px}.page-main{padding-bottom:45px}.region-guides{grid-template-columns:1fr}.region-guides .guide-visual{height:170px}.library-controls{gap:8px}.tool-filter select{font-size:11px;max-width:100%}.clear-filters{padding:10px 2px}#result-count{font-size:10px}.site-header nav{gap:9px;font-size:11px}.library .guide-grid{grid-template-columns:1fr 1fr}.guide-copy h3{font-size:23px}.guide-copy p{min-height:0}.guide-bottom{font-size:9px}.reading-sidebar .topic-links{display:grid;grid-template-columns:1fr 1fr;gap:0 15px}}
@media print{.site-header,.site-footer,.breadcrumbs,.page-actions,.reading-sidebar,.guide-visual,.region-overview-art,.skip{display:none!important}body{background:white;color:black}.page-main{padding:0;max-width:none}.reading-layout{display:block}.page-heading{padding:0 0 20px}.page-heading h1{font-size:30px}.reader-body p,.reader-body li{font-size:11pt}.reader-body h2{font-size:18pt;break-after:avoid}.reader-callout{border:1px solid #888;background:white;break-inside:avoid}.reader-sources a{font-size:9pt;overflow-wrap:anywhere}.reader-sources a::after{content:' (' attr(href) ')';font-size:8pt}.steps li{break-inside:avoid}.reader-sources{break-before:auto}.reader-body .region-facts{display:flex;justify-content:space-between}.reader-body .region-facts>div{max-width:30%}a{color:inherit}.video-section{display:none}}