.custom-header{background:#fff;border-bottom:1px solid #eee;padding:15px 20px}.header-inner{align-items:center;display:flex;justify-content:space-between}.logo img{max-height:50px}.fallback-logo{font-size:20px;font-weight:700}.main-nav{display:flex;gap:20px}.mobile-menu-toggle{background:none;border:none;cursor:pointer;display:none;font-size:24px}@media (max-width:768px){.main-nav{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.1);display:none;flex-direction:column;padding:10px;position:absolute;right:20px;top:70px}.main-nav.show{display:flex}}