.category-hover-container {
    position: relative;
    display: inline-block;
}

.category-main-display {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 8px;
    background: var(--light-color);
    border-radius: 4px;
    font-size: 13px;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-main-display:hover {
    background: var(--primary-color);
    color: white;
}

.category-main-display .dropdown-arrow {
    font-size: 10px;
    transition: transform 0.2s ease;
}

.category-main-display:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.category-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    /* min-width: 300px; */
    max-width: 350px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 9999;
    margin-top: 8px;
    /* animation: fadeIn 0.2s ease; */
    display: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-dropdown-header {
    padding: 12px 15px;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
    border-radius: 8px 8px 0 0;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
    position: sticky;
    top: 0;
    z-index: 2;
}

.category-dropdown-content {
    padding: 10px;
}

.category-tree-item {
    margin-bottom: 2px;
}

.category-tree-main {
    padding: 8px 12px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background 0.2s ease;
}

.category-tree-main:hover {
    background: var(--light-color);
}

.category-tree-main span:first-child {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.category-tree-main .toggle-icon {
    color: #999;
    font-size: 12px;
}

.category-tree-children {
    margin-left: 25px;
    padding-left: 10px;
    border-left: 1px dashed #e0e0e0;
    display: none;
}

.category-tree-child {
    padding: 6px 12px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.2s ease;
}

.category-tree-child:hover {
    background: var(--light-color);
}

.category-tree-child span:first-child {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #555;
}

.category-tree-child .toggle-icon {
    color: #999;
    font-size: 11px;
}

.category-tree-grandchild-list {
    margin-left: 25px;
    padding-left: 10px;
    border-left: 1px dashed #e0e0e0;
    display: none;
}

.category-tree-grandchild {
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666;
    transition: background 0.2s ease;
}

.category-tree-grandchild:hover {
    background: #f5f5f5;
    color: var(--primary-color);
}

.category-tree-grandchild i {
    color: #999;
    font-size: 10px;
    width: 16px;
}

.category-count-badge {
    background: var(--btn-color);
    color: var(--light-color);
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 12px;
    margin-left: 8px;
    white-space: nowrap;
}

.admin-category-tree {
    margin-top: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.admin-category-item {
    border-bottom: 1px solid #f0f0f0;
}

.admin-category-item:last-child {
    border-bottom: none;
}

.admin-category-header {
    padding: 12px 15px;
    background: #f8f9fa;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background 0.2s ease;
}

.admin-category-header:hover {
    background: #e9ecef;
}

.admin-category-header .category-name {
    font-weight: 600;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-category-header .category-name i {
    color: var(--primary-color);
    width: 20px;
}

.admin-category-header .header-actions {
    display: flex;
    gap: 8px;
}

.admin-subcategory-list {
    display: none;
    padding: 10px 0 10px 40px;
    background: white;
}

.admin-subcategory-list.expanded {
    display: block;
}

.admin-subcategory-item {
    padding: 8px 12px;
    margin: 2px 0;
    align-items: center;
    border-radius: 4px;
    position: relative;
}

.admin-subcategory-item:hover {
    background: #f8f9fa;
}

.admin-subcategory-item .subcategory-name {
    display: flex;
    gap: 8px;
    font-size: 13px;
    color: #555;
}

.admin-subcategory-item .subcategory-name i {
    color: #999;
    font-size: 12px;
    width: 16px;
}

.subcategory-actions,
.grandchild-actions {
    display: flex;
    gap: 5px;
}

.admin-grandchild-list {
    margin-left: 30px;
    padding-left: 15px;
    border-left: 1px dashed #e0e0e0;
    margin-top: 5px;
    margin-bottom: 5px;
}

.admin-grandchild-item {
    padding: 5px 12px;
    font-size: 12px;
    color: #666;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 4px;
}

.admin-grandchild-item:hover {
    background: #f5f5f5;
}

.no-subcategories {
    padding: 10px;
    color: #999;
    font-style: italic;
    text-align: center;
}

.icon-btn {
    background: none;
    border: none;
    padding: 5px 8px;
    cursor: pointer;
    border-radius: 4px;
    color: #666;
    transition: all 0.3s ease;
    font-size: 14px;
}

.icon-btn:hover {
    background: #e0e0e0;
    color: var(--text-color);
}

.icon-btn i {
    font-size: 14px;
}

.category-hover-container.active .category-dropdown-menu {
    display: block;
}

.category-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.categories-management {
    position: relative;
}

.add-category-form {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    z-index: 9999;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.add-category-form h4 {
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.add-category-form h4 i {
    color: var(--primary-color);
}

.loading-categories {
    padding: 40px;
    text-align: center;
    color: #666;
    font-style: italic;
}

.no-data {
    text-align: center;
    padding: 40px;
    color: #666;
}

.no-data i {
    font-size: 48px;
    color: #ccc;
    margin-bottom: 15px;
}

.custom-category-dropdown {
    position: relative;
    width: 100%;
    max-width: 300px;
    font-family: var(--font-main);
}

.custom-dropdown-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 15px;
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 45px;
    min-width: 300px;
}

.custom-dropdown-trigger:hover {
    border-color: var(--primary-color);
}

.custom-dropdown-trigger.active {
    border-color: var(--primary-color);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.trigger-text {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.trigger-text i {
    color: var(--primary-color);
    font-size: 14px;
    min-width: 16px;
}

.trigger-arrow {
    color: #666;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.custom-dropdown-trigger.active .trigger-arrow {
    transform: rotate(180deg);
}

.custom-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 2px solid var(--primary-color);
    border-top: none;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    max-height: 350px;
    overflow-y: auto;
    padding: 20px 10px;
    z-index: 1000;
    display: none;
    margin-top: -2px;
}

.custom-dropdown-trigger.active+.custom-dropdown-menu {
    display: block;
    /* animation: slideDown 0.2s ease; */
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-menu {
    list-style: none;
    padding: 0;

    margin: 0;
}

.category-menu-item {
    position: relative;
    border-bottom: 1px solid #f0f0f0;
}

.category-menu-item:last-child {
    border-bottom: none;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.2s ease;
}

.category-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.category-header-left i {
    color: var(--primary-color);
    width: 20px;
}

.category-count {
    background: var(--btn-color) !important;
    color: var(--light-color) !important;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 12px;
    margin-left: 8px;
}

.category-arrow {
    color: #999;
    font-size: 12px;
    transition: transform 0.2s ease;
}

.category-header:hover .category-arrow {
    transform: rotate(90deg);
}

.subcategory-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
    background: #fafafa;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
}

.category-menu-item.expanded>.subcategory-menu {
    display: block;
    animation: expand 0.2s ease;
}

@keyframes expand {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.subcategory-item {
    display: flex;
    flex-direction: column;
    align-items: start;
    cursor: pointer;
    transition: background 0.2s ease;
    font-size: 13px;
}

.subcategory-item:hover {
    background: var(--light-color);
}

.subcategory-item i {
    color: #999;
    width: 16px;
    font-size: 12px;
}

.subcategory-name {
    display: flex;
    align-items: center;
    text-align: start;
    gap: 2px;
    padding: 8px 15px 8px 40px;
    width: 100%;
}

.child-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
}

.subcategory-item.has-children .subcategory-name {
    font-weight: bold;
}

.child-item {
    display: flex;
    align-items: center;
    padding: 8px 15px 8px 60px;
    cursor: pointer;
    font-size: 12px;
    color: #666;
    transition: background 0.2s ease;
    width: 100%;
}

.child-item i {
    color: #999;
    width: 16px;
    font-size: 10px;
    margin-right: 8px;
}

.category-menu-item.selected>.category-header,
.subcategory-item.selected,
.child-item.selected {
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
}

.category-menu-item.selected>.category-header i,
.subcategory-item.selected i,
.child-item.selected i {
    color: white;
}

.category-menu-item.selected .category-count,
.subcategory-item.selected .category-count,
.child-item.selected .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.filter-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.filter-controls .custom-category-dropdown {
    order: 1;
}

.filter-controls #filter-visibility {
    order: 2;
}

#public-sets-section .section-actions .filter-controls {
    order: 0;
}

#public-sets-section .section-actions .search-box {
    order: 1;
}

.filter-controls .custom-category-dropdown,
.filter-controls #public-category {
    order: 1;
}

.filter-controls .search-box {
    order: 2;
}

select.form-input,
select.filter-select,
#quiz-category,
#parent-category-select,
#bulk-category {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: white;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 10px 15px;
    font-family: var(--font-main);
    font-size: 14px;
    color: var(--text-color);
    width: 100%;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px;
    transition: all 0.3s ease;
}

select.form-input:hover,
select.filter-select:hover,
#quiz-category:hover,
#parent-category-select:hover,
#bulk-category:hover {
    border-color: var(--primary-color);
}

select.form-input:focus,
select.filter-select:focus,
#quiz-category:focus,
#parent-category-select:focus,
#bulk-category:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 112, 179, 0.1);
}

select.form-input option,
select.filter-select option,
#quiz-category option,
#parent-category-select option,
#bulk-category option {
    padding: 10px;
    font-family: var(--font-main);
    font-size: 13px;
    background-color: white;
    color: var(--text-color);
}

select.form-input option:checked,
select.filter-select option:checked,
#quiz-category option:checked,
#parent-category-select option:checked,
#bulk-category option:checked {
    background: linear-gradient(135deg, var(--primary-color), #155a8f);
    color: white;
}

select.form-input option[style*="padding-left"],
select.filter-select option[style*="padding-left"],
#quiz-category option[style*="padding-left"] {
    background-color: #fafafa;
}

@media (max-width: 768px) {
    .category-dropdown-menu {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 320px;
        max-height: 80vh;
        margin-top: 0;
    }

    .admin-category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .admin-category-header .header-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .admin-subcategory-list {
        padding-left: 20px;
    }

    .admin-grandchild-list {
        margin-left: 15px;
        padding-left: 10px;
    }

    .custom-dropdown-container,
    .custom-category-dropdown {
        max-width: 100%;
    }

    .custom-dropdown-menu {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        min-width: 350px;
        max-height: 80vh;
        border: 2px solid var(--primary-color);
        border-radius: 8px;
        margin-top: 0;
    }

    .custom-dropdown-trigger.active {
        border-radius: 8px;
    }

    .dropdown-item {
        padding: 12px 15px;
    }

    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-controls .custom-category-dropdown,
    .filter-controls #filter-visibility,
    .filter-controls .search-box,
    select.form-input,
    select.filter-select,
    #quiz-category,
    #parent-category-select,
    #bulk-category {
        width: 100%;
        font-size: 16px;
        /* padding: 12px 15px; */
    }

    .toggle-help {
        display: none;
    }

    .admin-subcategory-item {
        padding: 8px 10px;
        margin: 2px 0;
        align-items: start;
        border-radius: 4px;
        position: relative;
    }

    .admin-subcategory-item:hover {
        background: #f8f9fa;
    }

    .admin-subcategory-item .subcategory-name {
        display: flex;
        justify-content: start;
        margin: 0 !important;
        padding: 0 !important;
        gap: 8px;
        font-size: 13px;
        color: #555;
    }
}

.category-tag {
    background: var(--light-color);
    color: var(--primary-color);
    border: 1px solid rgba(30, 112, 179, 0.2);
    /* min-width: 200px; */
    max-width: fit-content;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.category-display-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    direction: rtl;
    text-align: left;
}

.category-tag i {
    flex-shrink: 0;
}