.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:transparent;
  transition:background 0.3s ease, box-shadow 0.3s ease;
}

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

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:var(--space-3);
}

.brand{
  display:flex;
  align-items:center;
  gap:0.75rem;
  flex-shrink:0;
}

.brand-mark{
  height:52px;
  width:auto;
}

.brand-text{
  font-family:var(--font-heading);
  font-size:var(--text-md);
}

.nav{
  display:flex;
}

.nav-list{
  display:flex;
  gap:var(--space-4);
  margin:0;
  padding:0;
}

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

.nav-list a{
  position:relative;
}

.nav-list a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-4px;
  width:0;
  height:1px;
  background:var(--color-accent-gold);
  transition:width 0.3s ease;
}

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

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  justify-content:center;
}

.nav-toggle span{
  width:20px;
  height:2px;
  background:var(--color-text-primary);
}

@media (max-width:900px){
  .nav{
    position:fixed;
    inset:0 0 0 auto;
    width:80%;
    max-width:320px;
    background:var(--color-surface);
    transform:translateX(100%);
    transition:transform 0.3s ease;
    padding:var(--space-5) var(--space-4);
    overflow-y:auto;
  }

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

  .nav-list{
    flex-direction:column;
    gap:var(--space-3);
  }

  .nav-toggle{
    display:flex;
    z-index: 111;
  }
}