html{scroll-padding-top:90px}.site-header,.activity-header{position:sticky;top:0;z-index:100;height:76px;padding:0 clamp(20px,4vw,64px);background:rgba(255,255,255,.98);border-bottom:1px solid #dce6f1;transition:background .2s,box-shadow .2s;isolation:isolate}
.site-header.is-scrolled,.activity-header.is-scrolled{background:rgba(255,255,255,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 5px 20px #06214e0a}
.site-header .brand{width:auto}.site-header .brand img{width:44px;height:48px}.site-header nav{gap:24px;margin-left:auto;margin-right:32px;align-items:center;height:100%}.site-header .nav-link{position:relative;height:auto;min-height:44px;padding:8px 0;font-size:15px;font-weight:500;border:0;gap:10px}.site-header .nav-link:after,.activity-header nav>a:after{content:'';position:absolute;left:0;right:0;bottom:3px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .18s}.site-header .nav-link:is(:hover,:focus-visible,.active):after,.site-header .programs[open]>.nav-link:after,.activity-header nav>a:is(:hover,:focus-visible):after{transform:scaleX(1)}.site-header .chevron{width:7px;height:7px;margin-top:-3px}.site-header .header-cta{width:auto;height:40px;font-size:14px;padding:0 20px;border-radius:7px;gap:12px}.site-header .arrow{font-size:22px}.site-header .theme-toggle{width:38px;height:38px;min-width:38px;min-height:38px;margin:0 16px 0 0;background:transparent}.site-header .program-menu{top:calc(100% + 10px);padding:18px 22px}.site-header .program-menu>a{font-size:14px}.activity-header nav{display:flex;position:static;gap:22px;margin:0;background:transparent;box-shadow:none;padding:0;border:0;height:auto}.activity-header nav>a{position:relative;font-size:15px;padding:12px 0}
[data-theme=dark] .site-header,[data-theme=dark] .activity-header{background:rgba(7,19,34,.98);border-color:#273a55}[data-theme=dark] .site-header.is-scrolled,[data-theme=dark] .activity-header.is-scrolled{background:rgba(7,19,34,.86)}
@media(max-width:1050px){.site-header nav{gap:18px;margin-right:22px}.site-header .header-cta{padding:0 14px}.brand-name{font-size:26px}}
@media(max-width:900px){.site-header,.activity-header{height:68px;padding:0 22px}.site-header #navigation{display:none;position:absolute;top:100%;left:0;right:0;margin:0;height:auto;max-height:calc(100dvh - 68px);overflow-y:auto;background:var(--surface);padding:16px 24px;border-bottom:1px solid var(--line);box-shadow:0 15px 22px #06214e0b}.site-header #navigation.open{display:flex;align-items:stretch;flex-direction:column;gap:6px}.site-header .nav-link{width:max-content;max-width:100%;justify-content:flex-start;padding:10px 0}.site-header .program-menu{position:static;margin:8px 0 0;padding:12px 18px;box-shadow:none}.site-header .theme-toggle{margin-left:auto}.site-header .header-cta{margin:0 16px 0 0}.site-header .menu-toggle{margin:0;order:3}.activity-header .brand-name{font-size:24px}.activity-header nav{gap:14px}.activity-header .brand-tagline{font-size:9px}}
@media(max-width:540px){.site-header,.activity-header{padding:0 16px}.site-header .header-cta{display:none}.brand-lockup{gap:8px}.site-header .brand img,.brand-lockup .brand-mark{width:36px;height:41px}.brand-name{font-size:24px}.brand-tagline{font-size:8.5px}.site-header .theme-toggle{margin-right:8px}.activity-header{height:auto;min-height:68px;flex-wrap:wrap;gap:5px;padding-top:10px;padding-bottom:8px}.activity-header nav{width:100%;justify-content:flex-end;gap:20px}.activity-header nav>a{font-size:14px;padding:7px 0}}
@media(max-width:380px){.site-header{padding-inline:10px}.site-header .brand{gap:6px}.site-header .brand-name{font-size:20px}.site-header .brand-tagline{display:none}.site-header .theme-toggle{margin-right:4px}.activity-header .brand-tagline{display:none}}
@media(prefers-reduced-motion:reduce){.site-header,.activity-header,.site-header .nav-link:after,.activity-header nav>a:after{transition:none}}