.site-header{position:sticky;top:0;z-index:1000;background:var(--color-bg);border-bottom:1px solid var(--color-border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:80px;padding-block:12px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{height:48px;width:auto}
.brand-text{font-family:var(--font-heading);font-size:1.1rem;letter-spacing:0.06em}
.primary-nav ul{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:16px 20px;margin:0;padding:0}
.primary-nav li{margin:0}
.primary-nav a{color:var(--color-text);font-size:0.95rem;white-space:nowrap}
.primary-nav a:hover{color:var(--color-accent)}
.nav-cta a{padding:10px 16px}
.nav-toggle{display:none}
@media(max-width:900px){
.nav-toggle{display:flex}
.primary-nav{position:fixed;top:80px;right:0;width:100%;max-width:320px;height:calc(100vh - 80px);background:var(--color-bg);border-left:1px solid var(--color-border);transform:translateX(100%);transition:transform var(--transition-fast);overflow-y:auto}
.primary-nav.open{transform:translateX(0)}
.primary-nav ul{flex-direction:column;gap:16px;padding:24px;flex-wrap:nowrap;justify-content:flex-start}
.primary-nav a{white-space:normal}
}

.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);
}