/* Header & Navigation */
header{
  position:sticky;top:0;z-index:999;backdrop-filter:blur(6px);
  background:rgba(255,255,255,0.8);box-shadow:var(--shadow-sm);
}
nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px}
.logo-img{width:110px;height:auto;border-radius:12px;object-fit:cover;display:block}
.site-title{font-weight:700;color:var(--accent-2);font-size:1rem}

.nav-links{
  display:flex;gap:10px;align-items:center;list-style:none;margin:0;padding:0
}
.nav-links a,.nav-links button{
  display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:10px;
  text-decoration:none;color:inherit;font-weight:600;background:transparent;border:none;cursor:pointer;
  transition:all var(--transition);
}
.nav-links a:hover,.nav-links button:hover{background:var(--glass);transform:translateY(-2px)}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;
  cursor:pointer;border:none;background:transparent;
}