:root{color-scheme:dark;--paper:#ece9df;--soft:#b1b6ac;--line:#3d433b;--accent:#ddb47d;--mono:Consolas,"Courier New",monospace}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:#101211;color:var(--paper);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px}a:hover{color:var(--accent)}a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:6px}.wrap{max-width:1200px;margin:auto;padding:0 42px}.skip{position:absolute;top:-100px;left:20px;background:var(--paper);color:#101211;padding:12px;z-index:3}.skip:focus{top:15px}header{display:flex;justify-content:space-between;align-items:center;gap:25px;min-height:120px;border-bottom:1px solid var(--line)}.brand{font-size:17px;text-decoration:none}.brand span{display:block;font:10px/1.8 var(--mono);color:var(--soft)}nav{display:flex;gap:26px;font:12px/1.8 var(--mono)}nav a{padding:12px 0}.hero{padding:55px 0 60px;border-bottom:1px solid var(--line)}.label{font:11px/1.7 var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--accent);margin:0 0 20px}.identifier{font:22px/1.6 var(--mono);color:var(--soft);margin:0 0 20px}h1{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:clamp(48px,6vw,82px);line-height:1.08;letter-spacing:-.045em;margin:0 0 30px}.lede{font-size:19px;line-height:1.8;max-width:790px;color:#c7c9be;margin:0}.classification{font:10px/1.9 var(--mono);color:var(--soft);margin:30px 0 0}.study{display:grid;grid-template-columns:230px minmax(0,1fr);gap:65px;padding:52px 0;border-bottom:1px solid var(--line)}.margin-note>p:last-child{font-size:13px;line-height:1.8;color:var(--soft);max-width:210px;margin:0}.study>div:last-child>p{max-width:780px;color:#c7c9be;margin:20px 0}h2{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:36px;line-height:1.25;letter-spacing:-.025em;margin:0 0 24px}code{font:14px/1.8 var(--mono);color:var(--paper);overflow-wrap:anywhere}.boundary{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:0;border-block:1px solid #746450;margin:30px 0 12px;font:12px/1.6 var(--mono)}.boundary>*{padding:22px 15px;text-align:center;display:flex;align-items:center;justify-content:center}.boundary>b{font-weight:400;color:var(--accent);border-inline:1px solid var(--line)}.study .caption{font:11px/1.8 var(--mono)!important;color:var(--soft)!important}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:14px}caption{text-align:left;font:11px/1.7 var(--mono);color:var(--soft);padding-bottom:14px}th,td{padding:15px 14px;border-block:1px solid var(--line);text-align:left}th{font-weight:400;color:var(--soft);width:40%;padding-left:0}td{font-family:var(--mono);font-size:13px}details{border-block:1px solid var(--line);margin-top:-1px;padding:0 2px}summary{padding:17px 0;cursor:pointer;color:var(--paper);font-size:14px;min-height:50px}details>p{font-size:14px;color:var(--soft);margin:0 0 20px}.attribution{font-size:13px}.source-list{list-style:decimal;padding-left:23px;margin:0}.source-list li{padding:15px 0;border-bottom:1px solid var(--line);font-size:15px}.source-list li::marker{font:11px var(--mono);color:var(--accent)}.source-list span{display:block;font:11px/1.8 var(--mono);color:var(--soft);margin-top:7px}footer{display:flex;justify-content:space-between;gap:20px;padding:35px 0;font:11px/1.8 var(--mono);color:var(--soft)}@media(max-width:800px){.wrap{padding:0 25px}.study{grid-template-columns:170px minmax(0,1fr);gap:30px}nav{gap:15px}.boundary{grid-template-columns:1fr;font-size:12px}.boundary>b{border-inline:0;border-block:1px solid var(--line)}.boundary>*{padding:14px}}@media(max-width:580px){.wrap{padding:0 21px}header{align-items:start;flex-wrap:wrap;min-height:0;padding:25px 0;gap:20px}nav{width:100%;justify-content:space-between;font-size:10px;gap:12px}.hero{padding:40px 0}.lede{font-size:16px}.identifier{font-size:19px}h1{font-size:49px}.study{grid-template-columns:1fr;gap:25px;padding:35px 0}.margin-note>p:last-child{max-width:100%;font-size:12px}.label{margin-bottom:10px}h2{font-size:30px}.study>div:last-child>p{font-size:15px}footer{flex-wrap:wrap;font-size:10px}.source-list li{font-size:14px}th,td{font-size:12px;padding-inline:8px}.classification{font-size:9px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}