.gs-books-filter-container {
    background-color: #f5f5f5;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.gs-books-filter-taxonomy-item,
.gs-books-filter-search-field {
    flex: 1 1 200px;
}

.gs-books-filter-search-field input,
.gs-books-filter-search-field select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

.gs-books-filter-button {
    padding: 10px 20px;
    border: none;
    background-color: #337ab7;
    color: white;
    border-radius: 3px;
    cursor: pointer;
    width: 100%;
    height: 3em;
    transition: background-color 0.3s;
}

.gs-books-filter-button:hover {
    background-color: #286090;
}

.gs-hidden {
    display: none;
}