/* Shared site navigation, scoped to preserve the interactive presentation. */
.site-header{box-sizing:border-box;position:fixed;top:0;left:0;right:0;height:100px;z-index:80;display:flex;align-items:center;gap:22px;padding:0 3.5vw;background:#0b1a3c;color:#fff;font:14px Inter,Arial,sans-serif}
.site-header .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}.site-header .brand span{font-size:14px;letter-spacing:.035em}.site-header .brand img{width:91px;height:auto;filter:none}
.site-header nav{display:flex;align-items:center;gap:18px;margin:auto;font-size:14px}.site-header nav a{color:#ccd6e9}.site-header nav a:hover,.site-header nav a[aria-current]{color:white}.site-header nav a[aria-current]{border-bottom:1px solid #89a8ff}
.site-header .header-actions{display:flex;align-items:center;gap:20px}.site-header .portal-link{display:inline-flex;align-items:center;justify-content:center;background:#fff;color:#0b1a3c;border:1px solid #b7c8ff;border-radius:12px;padding:12px 17px;font-weight:600;white-space:nowrap;box-shadow:0 4px 24px #4569d535}
.site-header .button.small{font-size:13px;padding:11px 16px;border-radius:12px;white-space:nowrap;min-height:0;line-height:1.4}
.site-header .menu-toggle{display:none;color:white;border:1px solid #ffffff2b;background:none;padding:9px 12px;margin-left:auto;font-size:14px;border-radius:12px;cursor:pointer}
.site-header .explore-menu{position:relative;color:#d4dff2}.site-header .explore-menu>summary{cursor:pointer;list-style:none;display:flex;gap:7px;align-items:center}.site-header summary::-webkit-details-marker{display:none}.site-header summary:after{content:'+';font-size:18px;color:#aac0ff}.site-header details[open]>summary:after{content:'−'}
.site-header .mega-menu{position:absolute;right:-30px;top:44px;background:#142953;min-width:320px;border:1px solid #8aa8ff45;border-radius:20px;padding:24px;box-shadow:0 24px 70px #0005}.site-header .mega-menu .eyebrow{font-size:11px;margin-bottom:10px}.site-header .mega-menu a{display:block;padding:13px 12px;border-radius:10px;font-size:14px;white-space:nowrap}.site-header .mega-menu a:hover{background:#4569d526}.site-header .mega-menu a+a{border-top:1px solid #ffffff15}
@media(max-width:1400px){.site-header{gap:16px}.site-header nav{gap:12px;font-size:12px}.site-header .header-actions{gap:12px}.site-header .portal-link{padding:11px 12px;font-size:12px}}
@media(max-width:1200px){.site-header .menu-toggle{display:block}.site-header nav{display:none;position:absolute;top:100px;left:0;right:0;background:#0b1a3c;padding:25px 30px;flex-direction:column;align-items:flex-start;font-size:16px;max-height:calc(100svh - 100px);overflow-y:auto}.site-header nav.is-open{display:flex}.site-header .mega-menu{position:static;box-shadow:none;margin-top:18px;min-width:0;width:100%}.site-header .explore-menu{width:100%}}
@media(max-width:900px){.site-header{height:85px}.site-header nav{top:85px;max-height:calc(100svh - 85px)}}
@media(max-width:640px){.site-header{padding:0 20px;height:78px;gap:10px}.site-header nav{top:78px;max-height:calc(100svh - 78px)}.site-header .brand{gap:6px}.site-header .brand img{width:78px}.site-header .brand span{font-size:12px}.site-header .header-actions .button{display:none}.site-header .header-actions .portal-link{max-width:100px;white-space:normal;font-size:11px;padding:9px 11px;border-radius:10px;line-height:1.4}.site-header .menu-toggle{padding:8px;font-size:12px}.site-header .mega-menu a{white-space:normal}}