.site-header{position:sticky;top:0;z-index:40;background:rgba(250,250,250,.86);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid rgba(0,0,0,.08)}
html[data-theme="dark"] .site-header{background:rgba(18,24,32,.86);border-bottom-color:rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;gap:12px;min-height:64px}
.nav-menu{display:flex;align-items:center;gap:14px;margin-left:auto;list-style:none;padding:0}
.nav-menu a{font-size:12px;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:#183567}
html[data-theme="dark"] .nav-menu a{color:#F1F3F2}
.nav-cta{background:#B2292E;color:#FAFAFA !important;padding:8px 12px}
.nav-toggle{display:none;margin-left:auto;border:1px solid currentColor;background:transparent;width:36px;height:36px}
@media(max-width:760px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-menu{display:none;position:absolute;left:0;right:0;top:64px;margin:0;padding:12px 16px 16px;background:#FAFAFA;border-bottom:1px solid #d5dbe3;flex-direction:column;align-items:flex-start}
  html[data-theme="dark"] .nav-menu{background:#121820;border-color:#3c4a5e}
  .nav-menu.is-open{display:flex}
}