@media (max-width: 768px) {
    html, body {
        overflow-x: hidden !important;
        width: 100vw !important;
        max-width: 100vw !important;
    }
    .header {
        width: 100vw !important;
        max-width: 100vw !important;
        left: 0 !important;
        right: 0 !important;
        padding: 12px 0 !important;
    }
    .header-container {
        width: calc(100% - 32px) !important;
        max-width: calc(100vw - 32px) !important;
        margin: 0 16px !important;
        padding: 0 !important;
    }
    .mobile-menu-toggle {
        display: flex !important;
        position: relative !important;
        z-index: 9999 !important;
    }
    .nav-menu:not(.mobile-open) {
        display: none !important;
    }
    .header-buttons {
        display: none !important;
    }
    .mobile-auth-buttons {
        display: none;
    }
    .nav-menu.mobile-open .mobile-auth-buttons {
        display: flex !important;
        flex-direction: column !important;
        gap: 12px !important;
        margin-top: 20px !important;
        padding-top: 20px !important;
        border-top: 1px solid #e5e7eb !important;
        width: 100% !important;
    }
    .mobile-auth-buttons .btn {
        width: 100% !important;
        text-align: center !important;
    }
}