/* Shared, isolated masthead overrides; existing page styling is retained. */
:root{--masthead-height:140px;--anchor-offset:220px}
html{scroll-padding-top:var(--anchor-offset)}
[id],main>section,.core-page main>section{scroll-margin-top:0}
.site-masthead{position:sticky;top:0;z-index:100;display:grid;grid-template-columns:minmax(0,1fr) 315px;align-items:center;gap:24px;padding:8px 40px;background:#fff;border-bottom:1px solid var(--line)}
.site-masthead>header,.core-page .site-masthead>header{height:auto;min-height:0;border:0;min-width:0}
.site-masthead .header-inner,.core-page .site-masthead .header-inner{height:auto;min-height:0;padding:0;max-width:none;flex-wrap:wrap;gap:10px 20px}
.site-masthead .brand{white-space:nowrap}
.site-masthead .core-nav{flex-basis:100%;margin-left:0;gap:10px 20px;flex-wrap:wrap}
.site-masthead .brand-note{display:none}
.site-masthead .header-cta{margin-left:auto}
.sponsorship-placement{min-width:0;width:100%;margin:0;padding:0}
.sponsorship-label{display:block;font-size:10px;line-height:16px;color:#536977;margin-bottom:3px;letter-spacing:.3px}
.sponsorship-banner{display:block;border-radius:5px;text-decoration:none}
.sponsorship-banner img{display:block;width:100%;height:auto;border-radius:5px}
.sponsorship-banner:focus-visible,.sponsorship-mobile-link:focus-visible{outline:3px solid #10786d;outline-offset:4px}
.sponsorship-mobile-link{display:none}
.skip{position:fixed;z-index:200;top:-100px}.skip:focus{top:10px}
.section-nav{top:calc(var(--masthead-height) + 16px)}
@media(max-width:1099px){
 :root{--masthead-height:140px;--anchor-offset:220px}
 .site-masthead{display:contents}
 .site-masthead>header,.core-page .site-masthead>header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px}
 .site-masthead .header-inner,.core-page .site-masthead .header-inner{gap:8px 14px}
 .site-masthead .core-nav{gap:6px 18px}
 .sponsorship-placement{max-width:420px;width:calc(100% - 48px);margin:16px auto}
 .sponsorship-mobile-link{display:block;min-height:44px;padding:8px 0;font-size:14px;font-weight:600;text-align:center}
 .sponsorship-label{font-size:11px}
}
@media(max-width:760px){
 .site-masthead>header,.core-page .site-masthead>header{padding:10px 16px}
 .site-masthead .brand{font-size:16px;gap:8px}
 .site-masthead .brand-mark{width:30px;height:30px;font-size:20px}
 .site-masthead .core-nav{font-size:12px;gap:4px 12px;line-height:1.4}
 .site-masthead .core-nav summary{font-size:12px;padding-top:6px;padding-bottom:6px}
 .site-masthead .core-nav>a{padding:5px 0}
 .site-masthead .category-menu{left:0;max-width:calc(100vw - 110px);top:32px}
 .site-masthead .category-menu a{white-space:normal}
 .sponsorship-placement{width:calc(100% - 32px);margin:12px auto}
 .section-nav{top:var(--masthead-height);z-index:90}
 .site-masthead .header-cta{font-size:11px;padding:6px 8px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}