.th-filter-btn {
    border: none;
    background: transparent;
    padding: 4px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: 0.2s;
    color: #6c757d;
    height: 20px;
    line-height: 1;
}

.th-filter-btn.filter-active {
    color: #0d6efd;
    background-color: #e7f1ff;
}

.th-filter-btn:hover {
    background: rgba(0, 0, 0, 0.06);
    color: #000;
}

.th-filter-btn i {
    font-size: 12px;
}

.th-dropdown-menu {
    position: absolute;
    z-index: 9999;
    min-width: 180px;
    background: #fff;
    border-radius: 8px;
    padding: 8px 0;
    border: 1px solid #dee2e6;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.filter-dropdown-menu {
    width: 210px !important;
}

.filter-dropdown-menu .dropdown-item {
    border-radius: 4px;
}

.filter-dropdown-menu .dropdown-item:hover {
    background-color: #f1f3f5;
}

.filter-dropdown-menu .dropdown-title {
    padding-left: 4px;
}

.filter-dropdown-menu .input-group-text {
    border-right: 0;
}

.filter-dropdown-menu .form-control {
    border-left: 0;
}

.sort-asc.active-sort::before,
.sort-desc.active-sort::before {
    content: "\2713"; /* ✔ dấu tích */
    margin-right: 8px;
    color: green;
}