.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:transparent;
  transition:background .3s ease, box-shadow .3s ease;
}

.site-header.scrolled{
  background:var(--color-surface-elevated);
  box-shadow:var(--shadow-soft);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:var(--space-2);
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--color-text-primary);
}

.brand-mark{
  height:48px;
  width:auto;
}

.brand-text{
  font-family:var(--font-heading);
  letter-spacing:0.08em;
}

.nav{
  display:flex;
}

.nav-list{
  display:flex;
  gap:24px;
  margin:0;
  padding:0;
}

.nav-list li{margin:0;padding:0;}

.nav a{
  font-size:var(--fs-6);
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--color-text-primary);
  position:relative;
}

.nav a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-4px;
  width:0;
  height:1px;
  background:var(--color-accent-gold);
  transition:width .25s ease;
}

.nav a:hover::after{width:100%;}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}

.nav-toggle{
  display:none;
}

.nav-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.4);
  z-index:900;
}

@media (max-width:900px){
  .nav{
    position:fixed;
    top:0;
    right:0;
    height:100vh;
    width:min(320px,85vw);
    background:var(--color-surface-elevated);
    box-shadow:var(--shadow-soft);
    transform:translateX(100%);
    transition:transform .3s ease;
    z-index:1001;
    padding:80px 24px;
  }

  .nav.open{transform:translateX(0);}

  .nav-list{
    flex-direction:column;
    gap:20px;
  }

  .nav-toggle{
    display:flex;
  }

  .brand-mark{height:36px;}
}