.multi-select-dropdown {
    position: relative;
    display: inline-block;
}

.multi-select-dropdown-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    cursor: pointer;
    font-size: 14px;
    min-width: 150px;
    width: 150px;
}

.multi-select-dropdown-btn:hover {
    border-color: #aaa;
}

.multi-select-menu {
    display: none;
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    z-index: 200;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    min-width: 180px;
    padding: 6px 0;
    max-height: 280px;
    overflow-y: auto;
}

.multi-select-group-title {
    padding: 6px 12px 3px;
    font-size: 11px;
    font-weight: 600;
    color: #999;
    letter-spacing: 0.4px;
}

.multi-select-group-title:not(:first-child) {
    border-top: 1px solid #eee;
    margin-top: 4px;
    padding-top: 8px;
}

.multi-select-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    cursor: pointer;
    font-size: 13px;
    color: #333;
    user-select: none;
}

.multi-select-item:hover {
    background: #f5f5f5;
}

.multi-select-item input[type="checkbox"] {
    accent-color: #007bff;
    cursor: pointer;
    flex-shrink: 0;
}