/* Shared header extension: approved emblem, persistent identity and navigation. */
:root{--site-header-height:172px}
html{scroll-padding-top:calc(var(--site-header-height) + 16px)}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.98)}
.site-nav{display:grid;grid-template-columns:minmax(0,1fr) auto 104px;align-items:center;gap:24px;padding-top:12px;padding-bottom:12px}
.site-brand{grid-column:1;grid-row:1;min-width:0}
.audience-switch{grid-column:2;grid-row:1}
.bm-header-emblem{grid-column:3;grid-row:1;justify-self:end;display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;inline-size:104px;block-size:104px;border-radius:50%;text-decoration:none;color:#183247}
.bm-header-emblem picture,.bm-header-emblem img{display:block;inline-size:100%;block-size:100%}
.bm-header-emblem img{object-fit:contain}
.bm-header-emblem:focus-visible{outline:3px solid #126c77;outline-offset:3px}
.section[id],article[id]{scroll-margin-top:0}
.topic-figure{top:calc(var(--site-header-height) + 16px)}
.topic h2{overflow-wrap:anywhere;hyphens:auto}
@media(max-width:760px){
 :root{--site-header-height:230px}
 .site-nav{grid-template-columns:minmax(0,1fr) 68px;gap:7px 12px;padding-top:10px;padding-bottom:9px}
 .site-brand{grid-column:1;grid-row:1}
 .bm-header-emblem{grid-column:2;grid-row:1;inline-size:68px;block-size:68px}
 .audience-switch{grid-column:1/-1;grid-row:2;width:100%}
 .section-navigation{gap:6px 16px;padding-top:7px;padding-bottom:9px}
 .section-navigation a{line-height:1.5;min-height:24px;display:inline-flex;align-items:center}
}
@media(min-width:560px) and (max-width:900px) and (max-height:500px){
 .site-nav{grid-template-columns:minmax(0,1fr) auto 48px;gap:12px;padding-top:6px;padding-bottom:6px}
 .site-brand{grid-column:1;grid-row:1;font-size:15px}
 .site-brand small{font-size:9px;letter-spacing:0}
 .audience-switch{grid-column:2;grid-row:1;width:auto}
 .audience-switch a{font-size:11px;padding:8px}
 .bm-header-emblem{grid-column:3;grid-row:1;inline-size:48px;block-size:48px}
 .section-navigation{gap:4px 15px;padding-top:5px;padding-bottom:6px}
}