/* Mobile Menu Container */
#mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    z-index: 50;
    overflow: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform: translateY(-20px);
    opacity: 0;
}

#mobile-menu.show {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

/* ... rest of mobile menu + utilities as before ... */