/* Ẩn caret mặc định */
.dropdown-toggle::after {
    display: none;
}

/* Icon */
.dropdown-icon {
    font-size: 12px;
    transition: 0.3s;
}

/* Rotate khi mở */
.show > .nav-link .dropdown-icon {
    transform: rotate(180deg);
}

/* ===== MOBILE FIX ===== */
@media (max-width: 991px) {

    .navbar-collapse {
        padding: 15px;
        background: #fff;
        border-radius: 10px;
        margin-top: 10px;
    }

    .navbar-nav .nav-link {
        padding: 12px 10px;
        font-size: 16px;
        border-bottom: 1px solid #eee;
    }

    .dropdown-menu {
        border: none;
        padding-left: 10px;
    }

    .dropdown-item {
        padding: 10px;
    }
}

/* ===== DESKTOP ===== */
@media (min-width: 992px) {

    .navbar .dropdown:hover .dropdown-menu {
        display: block;
    }

    .navbar .dropdown:hover .dropdown-icon {
        transform: rotate(180deg);
    }
}