:root{color-scheme:light;--bg:#f5f5f5;--surface:#fff;--text:#171717;--muted:#626262;--line:#e3e3e3;--accent:#3b49df;--tint:#eef0ff;--callout:#f5f6ff;--cover:#202b80;--shadow:0 1px 2px #00000005}
.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}
.header-controls{display:flex;align-items:center;gap:22px}.language-switch{display:flex;gap:4px;font-size:14px}.language-switch a{padding:6px 8px;border-radius:4px;text-decoration:none;color:var(--muted)}.language-switch a[aria-current=page]{background:var(--tint);color:var(--accent);font-weight:700}@media(max-width:760px){.header-controls{gap:8px}.brand>span:last-child{display:none}.topbar-inner{gap:8px}.language-switch a{padding:6px}}
.training-nav{margin-top:25px}.back-link{display:block;margin:8px 12px 24px;font-size:16px}.document-banner{padding:28px 38px;background:var(--cover);color:white}.document-banner .eyebrow{color:#c9ceff}.document-banner p:last-child{margin:0;font-size:22px;font-weight:700}.document-tools{display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap;font-size:14px;margin-bottom:24px}.markdown-body{overflow-wrap:anywhere}.markdown-body h2{margin-top:44px;padding-top:22px;border-top:1px solid var(--line)}.markdown-body h3{margin-top:28px}.markdown-body li{margin-bottom:9px}.markdown-body code{font-size:.85em;background:var(--bg);padding:2px 4px;border-radius:4px}.table-scroll{overflow:auto;margin:24px 0;border:1px solid var(--line);border-radius:6px}.table-scroll:focus-visible{outline:3px solid var(--accent)}table{border-collapse:collapse;width:100%;font-size:16px;line-height:1.55}th,td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line);min-width:140px}th{background:var(--tint);font-weight:700}tr:last-child td{border-bottom:0}.document-toc{max-height:calc(100vh - 125px);overflow:auto}.mobile-toc{display:none}.protocol-list a{display:block;text-decoration:none}.protocol-list a:hover strong{text-decoration:underline}.left{max-height:calc(100vh - 110px);overflow:auto}.mobile-toc nav a{display:block;padding:7px 0}.mobile-toc summary{cursor:pointer;font-weight:700}.document-page .article-body{padding-top:28px}
@media(max-width:1150px){.mobile-toc{display:block;padding:16px;background:var(--bg);border-radius:6px;margin-bottom:24px}}
@media(max-width:760px){.left{max-height:none;overflow:visible}.left .training-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}.training-nav .edition{margin:0}.document-banner{padding:24px}.back-link{margin:0 4px 12px}.document-tools{font-size:13px}.markdown-body h1{font-size:32px}th,td{min-width:150px}}
:root[data-theme=dark]{color-scheme:dark;--bg:#101113;--surface:#1b1c20;--text:#f0f0f2;--muted:#a7a8b2;--line:#34353e;--accent:#a7adff;--tint:#272c50;--callout:#23263a;--cover:#171d52;--shadow:none}
@media(prefers-color-scheme:dark){:root[data-theme=system]{color-scheme:dark;--bg:#101113;--surface:#1b1c20;--text:#f0f0f2;--muted:#a7a8b2;--line:#34353e;--accent:#a7adff;--tint:#272c50;--callout:#23263a;--cover:#171d52;--shadow:none}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:1.6}a{color:var(--accent);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}button,select{font:inherit}a:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.skip{position:fixed;top:-60px;left:10px;background:var(--surface);padding:8px;z-index:100}.skip:focus{top:8px}.topbar{height:72px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.topbar-inner{max-width:1440px;margin:auto;height:100%;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:14px;color:var(--text);font-weight:700;font-size:19px;text-decoration:none}.logo{color:#fff;background:#171717;border-radius:5px;padding:5px 9px;font-weight:900;letter-spacing:-1px;font-size:23px}.theme-control{display:flex;gap:12px;align-items:center;font-size:14px;color:var(--muted)}select{padding:8px 30px 8px 12px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--text);cursor:pointer}.layout{max-width:1400px;display:grid;grid-template-columns:225px minmax(0,790px) 260px;gap:24px;margin:28px auto;padding:0 24px}.left,.right{align-self:start;position:sticky;top:100px}.nav-label,.eyebrow,.small-mark{font-size:12px;font-weight:700;letter-spacing:1.4px;color:var(--muted)}.nav-label{margin:4px 12px 15px}.edition{display:block;color:var(--muted);text-decoration:none;font-size:14px;padding:14px 12px;border-radius:6px;margin-bottom:6px;line-height:1.45;border-left:3px solid transparent}.edition-title{display:block;font-size:16px;font-weight:700;color:var(--text);margin-bottom:5px}.edition:hover{background:var(--surface)}.edition[aria-current=page]{border-left-color:var(--accent);background:var(--tint)}.edition[aria-current=page] .edition-title{color:var(--accent)}.editorial-note{padding:24px 14px;border-top:1px solid var(--line);margin-top:30px}.editorial-note p{font-size:22px;font-weight:700;line-height:1.3;letter-spacing:-.5px}.editorial-note small{font-size:14px;color:var(--muted);display:block;line-height:1.6}.article-card{border:1px solid var(--line);background:var(--surface);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.cover{height:207px;background:var(--cover);color:#fff;padding:26px 38px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between}.cover>span{font-size:12px;letter-spacing:2px;font-weight:700;z-index:1}.cover strong{font-size:150px;line-height:1;letter-spacing:-10px;position:absolute;right:25px;top:24px;color:#ffffff24;font-weight:900}.cover strong span{color:#aeb7ff99}.cover-bottom{max-width:190px;line-height:1.6}.article-body{padding:35px 48px 22px}.byline{display:flex;align-items:center;gap:12px;font-size:14px}.avatar{border-radius:50%;background:var(--tint);color:var(--accent);width:38px;height:38px;display:grid;place-items:center;font-weight:700}.byline strong{font-size:15px}.byline div>span{display:block;color:var(--muted);font-size:13px}.read-time{margin-left:auto;color:var(--muted);font-size:13px;white-space:nowrap}h1{font-size:clamp(32px,3.1vw,45px);line-height:1.14;letter-spacing:-1.5px;margin:25px 0 16px;font-weight:800}.tags{display:flex;flex-wrap:wrap;gap:16px;font-size:14px;color:var(--muted);margin-bottom:25px}.tags span:first-child{color:var(--accent)}.lead{font-size:20px;line-height:1.6;color:var(--muted)}.decision{display:flex;gap:14px;padding:19px;background:var(--callout);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:5px;margin:28px 0}.decision-icon{color:var(--accent);font-weight:700}.decision strong,.decision span:not(.decision-icon){display:block}.decision span:not(.decision-icon){font-size:14px;color:var(--muted);margin-top:4px}section{margin-top:36px}h2{font-size:25px;line-height:1.25;letter-spacing:-.5px;margin:0 0 16px}h3{font-size:22px;line-height:1.35;letter-spacing:-.3px;margin:9px 0 13px}p{margin:0 0 18px}.section-title{display:flex;gap:12px;align-items:baseline}.count{background:var(--bg);border:1px solid var(--line);font-size:12px;border-radius:20px;padding:1px 8px;white-space:nowrap}.study{padding:25px 0;border-top:1px solid var(--line)}.study-meta{font-size:12px;letter-spacing:.4px;color:var(--muted);display:flex;gap:8px;align-items:center;flex-wrap:wrap}.badge{background:var(--tint);color:var(--accent);font-size:12px;letter-spacing:.6px;padding:3px 7px;border-radius:4px;font-weight:700}.study p{margin-bottom:14px}.magnitude{background:var(--bg);padding:13px 15px;border-radius:5px;font-size:15px;border:1px solid var(--line)}.meaning{border-left:2px solid var(--accent);padding-left:15px}.meaning b{font-size:14px;color:var(--accent);display:block;margin-bottom:4px}.source{font-size:14px}.note{font-size:14px;color:var(--muted)}.protocol-list{list-style:none;padding:0;border:1px solid var(--line);border-radius:6px}.protocol-list li{padding:12px 16px;border-bottom:1px solid var(--line)}.protocol-list li:last-child{border:0}.protocol-list strong{font-size:15px}.protocol-list span{display:block;font-size:13px;color:var(--muted);overflow-wrap:anywhere}.focus{background:var(--callout);border:1px solid var(--line);border-radius:7px;padding:25px}.focus .eyebrow{color:var(--accent);margin-bottom:12px}.focus ol{padding-left:22px;margin-bottom:0}.focus li{padding-left:4px;margin-bottom:12px}.article-footer{border-top:1px solid var(--line);margin-top:32px;padding-top:22px;color:var(--muted);font-size:14px}.article-footer p{margin-bottom:8px}.article-footer small{font-size:13px}.rail-card{background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:22px;margin-bottom:20px;box-shadow:var(--shadow)}.rail-card nav a{display:block;padding:8px 0;color:var(--muted);font-size:15px;text-decoration:none}.rail-card nav a:hover{color:var(--accent)}.rail-card .eyebrow{margin-bottom:10px}.status-card{border-top:4px solid var(--accent)}.status-card h3{font-size:20px}.status-card p{font-size:15px;color:var(--muted)}.version{color:var(--accent);font-size:14px;font-weight:700}.stat{display:flex;gap:14px;align-items:center;padding-top:12px;margin-top:12px;border-top:1px solid var(--line)}.stat strong{font-size:24px}.stat span{font-size:13px;color:var(--muted);line-height:1.4}.evidence-key{padding:5px 12px}.evidence-key h3{font-size:16px}.evidence-key p{font-size:14px;color:var(--muted)}.evidence-key strong{color:var(--text)}.site-footer{text-align:center;color:var(--muted);font-size:13px;padding:25px}.site-footer span{padding:0 10px}
@media(min-width:1400px){.layout{gap:28px}}@media(max-width:1150px){.layout{grid-template-columns:190px minmax(0,1fr)}.right{display:none}.article-body{padding:30px 40px}}@media(max-width:760px){.topbar-inner{padding:0 16px}.brand>span:last-child{font-size:16px}.theme-control label{display:none}.layout{display:block;padding:0 12px;margin-top:16px}.left{position:static}.left nav{display:flex;gap:8px;margin-bottom:16px}.nav-label,.editorial-note{display:none}.edition{flex:1;padding:10px;border-left:0;border-bottom:3px solid transparent;border:1px solid var(--line);background:var(--surface)}.edition[aria-current=page]{border-bottom:3px solid var(--accent)}.edition-title{font-size:14px}.edition>span:last-child{font-size:12px}.cover{height:150px;padding:20px 25px}.cover strong{font-size:115px;top:15px}.cover>span{font-size:10px}.cover-bottom{max-width:145px}.article-body{padding:24px}h1{font-size:35px}.lead{font-size:18px}.read-time{display:none}.focus{padding:20px}.section-title{display:block}.section-title .count{display:inline-block;margin-bottom:12px}.site-footer span{padding:0 4px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}