.site-header{background:var(--color-surface-primary);position:sticky;top:0;z-index:1000}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);min-height:80px}
.site-header__brand{display:flex;align-items:center;gap:12px}
.site-header__logo{height:48px;width:auto}
.site-header__brand-text{font-family:var(--font-heading);font-size:20px}
.site-nav{display:flex}
.site-nav__list{display:flex;align-items:center;gap:24px}
.site-nav__list li{margin:0;padding:0}
.site-nav a{font-size:15px}
.site-nav__cta{margin-left:8px}
.nav-toggle{display:none;flex-direction:column;gap:4px;padding:8px}
.nav-toggle__bar{width:22px;height:2px;background:var(--color-text-primary)}
@media (max-width:900px){
.site-nav{position:fixed;top:80px;right:0;width:100%;max-width:320px;height:calc(100vh - 80px);background:var(--color-surface-secondary);transform:translateX(100%);transition:transform var(--transition-fast);box-shadow:var(--shadow-soft);padding:24px}
.site-nav.open{transform:translateX(0)}
.site-nav__list{flex-direction:column;align-items:flex-start;gap:16px}
.nav-toggle{display:flex}
}

.nav-toggle {
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}