.dropdown-menu-custom {
    position: fixed;
    top: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    background-color: #fff;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 0.25rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
    padding: 10px 20px;
    width: 200px;
    min-height: 120px;
    text-align: center;
}

.dropdown-menu-custom a {
    display: block;
    padding: 10px 0;
    color: #000;
    text-decoration: none;
    box-shadow: 0px 3px 3px 1px #f1f1f1;
    transition: box-shadow 0.3s ease;
}

.dropdown-menu-custom a.fade {
    box-shadow: none;
    border: none;
    opacity: 1 !important;
}

.dropdown-menu-custom a:hover {
    background-color: #f8f9fa;
    border-radius: 4px;
}

/* Khi menu ẩn */
.dropdown-menu-custom[style*="display: none"] {
    display: none !important;
}

#loginMenu {
    border: 2px solid #d5840a;
    box-shadow: 0px 4px 8px 5px #a7cae53d;
}

#signupMenu {
    border: 2px solid #0805bd;
    box-shadow: 0px 4px 8px 5px #a7cae53d;
}