.site-header{position:sticky;top:0;z-index:1000;background:transparent;transition:background var(--transition-medium),backdrop-filter var(--transition-medium)}
.site-header.scrolled{background:rgba(15,17,19,0.85);backdrop-filter:blur(8px)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;min-height:72px}
.site-header__brand{display:flex;align-items:center;gap:12px}
.site-header__logo{height:44px;width:auto}
.site-header__brand-text{font-family:var(--font-heading);font-size:1.1rem}
.site-header__toggle{display:none;padding:10px}
.site-header__toggle span{display:block;width:22px;height:2px;background:var(--color-text-primary)}
.site-header__nav{}
.site-header__menu{display:flex;align-items:center;gap:24px;margin:0;padding:0}
.site-header__menu li{margin:0;padding:0}

@media(max-width:900px){
.site-header__toggle{display:flex}
.site-header__nav{position:fixed;top:0;right:0;height:100vh;width:min(320px,100%);background:var(--color-surface-secondary);transform:translateX(100%);transition:transform var(--transition-medium);padding:80px 24px}
.site-header__nav.open{transform:translateX(0)}
.site-header__menu{flex-direction:column;align-items:flex-start;gap:20px}
}