.site-header{position:sticky;top:0;z-index:var(--z-header);background:var(--dg-surface);border-bottom:1px solid var(--dg-border);backdrop-filter:blur(var(--glass-blur))}.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding-block:var(--space-3)}.site-branding img{max-height:48px;width:auto}.site-title{font-size:1.375rem;font-weight:800;letter-spacing:-.01em;color:var(--dg-primary-hover)}.main-navigation .primary-menu{display:flex;align-items:center;gap:var(--space-5)}.main-navigation .primary-menu a{font-weight:600;font-size:.9375rem;padding-block:var(--space-2);transition:color var(--transition-fast)}.main-navigation .primary-menu a:hover{color:var(--dg-primary)}.main-navigation .primary-menu .sub-menu{display:none}.menu-toggle{display:none;flex-direction:column;gap:5px;padding:var(--space-2)}.menu-toggle__bar{width:22px;height:2px;background:currentColor;border-radius:var(--radius-full)}@media (max-width:782px){.menu-toggle{display:flex}.main-navigation{display:none;width:100%;order:3}.main-navigation.is-open{display:block}.main-navigation .primary-menu{flex-direction:column;align-items:stretch;gap:0;padding-block:var(--space-3)}.site-header__inner{flex-wrap:wrap}}