.site-header{position:fixed;top:0;left:0;right:0;z-index:40;background:rgba(5,5,5,0.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,0.06)}.site-header-inner{height:var(--header-height);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.logo{display:flex;align-items:center;gap:var(--space-2);font-family:var(--font-display);font-size:var(--font-size-sm);letter-spacing:0.16em;text-transform:uppercase}.logo-mark{width:26px;height:26px;border-radius:0;border:2px solid var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:14px;background:#050505;box-shadow:0 0 0 2px #000,0 10px 26px rgba(0,0,0,0.9)}.logo-text-strong{color:var(--color-primary);display:block}.logo-text-muted{color:var(--color-text-muted);display:block;font-size:var(--font-size-xs);letter-spacing:0.18em}.nav-toggle{display:flex;flex-direction:column;gap:4px;width:36px;height:36px;align-items:center;justify-content:center;border-radius:0;border:1px solid rgba(255,255,255,0.22);background-color:#050505;box-shadow:0 10px 20px rgba(0,0,0,0.9);padding:0;color:var(--color-text)}.nav-toggle-bar{width:18px;height:2px;background-color:#f5f5f5;transition:transform var(--transition-fast),opacity var(--transition-fast)}.nav{position:absolute;top:var(--header-height);left:0;right:0;background:#050505;border-bottom:1px solid rgba(255,255,255,0.06);display:none;flex-direction:column;padding:var(--space-4);gap:var(--space-3)}.nav.is-open{display:flex}.nav-list{display:flex;flex-direction:column;gap:var(--space-2)}.nav-link{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) 0;font-size:var(--font-size-xs);letter-spacing:0.12em;text-transform:uppercase;color:var(--gray-300);border-bottom:2px solid transparent}.nav-link:hover,.nav-link:focus-visible{color:var(--color-primary);border-bottom-color:var(--color-primary)}.nav-item-desktop{display:none}.nav-cta{margin-top:var(--space-3)}.header-cta{background-color:var(--color-primary);color:#050505;border-color:transparent}.header-cta:hover,.header-cta:focus-visible{background-color:var(--color-primary-strong);color:#050505}.nav-toggle.is-active .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}.nav-toggle.is-active .nav-toggle-bar:nth-child(2){opacity:0}.nav-toggle.is-active .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}@media(min-width:768px){.nav{max-width:420px;margin-left:auto;margin-right:0}}@media(min-width:960px){.nav{position:static;display:flex !important;flex-direction:row;align-items:center;background:transparent;border-bottom:0;padding:0;gap:var(--space-5);max-width:none}.nav-list{flex-direction:row;align-items:center;gap:var(--space-5)}.nav-item-desktop{display:list-item}.nav-cta{margin-top:0}.nav-toggle{display:none}}body.nav-open{overflow:hidden}