.woodmart-series-filter {
    background: #fff;
    padding: 15px 20px;
    margin-bottom: 30px;
    border: 1px solid #e5e5e5;
    border-radius: 6px;
}
.woodmart-series-filter .widget-title {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 15px;
}
.woodmart-series-filter ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.woodmart-series-filter label {
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
}
.woodmart-series-filter input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}
.woodmart-series-filter .wd-checkbox-checkmark {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 1px solid #ddd;
    border-radius: 3px;
    margin-right: 10px;
    position: relative;
    flex-shrink: 0;
}
.woodmart-series-filter input[type="checkbox"]:checked + .wd-checkbox-checkmark::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 0px;
    width: 4px;
    height: 8px;
    border: solid #333;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.woodmart-series-filter .wd-scroll {
    max-height: 180px;
    overflow-y: auto;
}
.woodmart-series-filter .wd-scroll::-webkit-scrollbar {
    width: 6px;
}
.woodmart-series-filter .wd-scroll::-webkit-scrollbar-track {
    background: #f5f5f5;
    border-radius: 3px;
}
.woodmart-series-filter .wd-scroll::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}
.woodmart-series-filter .wd-scroll::-webkit-scrollbar-thumb:hover {
    background: #aaa;
}
.sidebar, .widget-area {
    max-width: 300px;
}