/**
 * Admin Styles for Unstoppable Product Sorting
 *
 * @package Unstoppable_Product_Sorting
 */

/* ==========================================================================
   Variables
   ========================================================================== */

:root {
    --ups-primary: #2271b1;
    --ups-primary-hover: #135e96;
    --ups-gold: #f0b849;
    --ups-success: #00a32a;
    --ups-error: #d63638;
    --ups-warning: #dba617;
    --ups-border: #c3c4c7;
    --ups-border-light: #e2e4e7;
    --ups-bg: #f0f0f1;
    --ups-bg-white: #fff;
    --ups-text: #1d2327;
    --ups-text-light: #50575e;
    --ups-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --ups-radius: 4px;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.ups-wrap {
    max-width: 1400px;
    margin: 20px 20px 20px 0;
}

.ups-page-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 23px;
    font-weight: 400;
}

.ups-page-title .dashicons {
    font-size: 28px;
    width: 28px;
    height: 28px;
    color: var(--ups-gold);
}

/* ==========================================================================
   Tabs Navigation
   ========================================================================== */

.ups-tabs-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin: 0 0 20px 0;
    background: var(--ups-bg-white);
    border: 1px solid var(--ups-border);
    border-radius: var(--ups-radius);
    overflow: hidden;
}

.ups-tab-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    text-decoration: none;
    color: var(--ups-text-light);
    font-size: 14px;
    font-weight: 500;
    border-right: 1px solid var(--ups-border);
    transition: all 0.15s ease;
}

.ups-tab-link:last-of-type {
    border-right: none;
}

.ups-tab-link:hover {
    background: var(--ups-bg);
    color: var(--ups-primary);
}

.ups-tab-link.active {
    background: var(--ups-primary);
    color: #fff;
}

.ups-tab-link .dashicons {
    font-size: 18px;
    width: 18px;
    height: 18px;
}

.ups-header-links {
    margin-left: auto;
    display: flex;
    align-items: center;
    padding: 0 15px;
}

.ups-header-link {
    color: var(--ups-text-light);
    text-decoration: none;
    font-size: 13px;
    padding: 5px 10px;
    transition: color 0.15s ease;
}

.ups-header-link:hover {
    color: var(--ups-primary);
}

/* ==========================================================================
   Tab Content
   ========================================================================== */

.ups-tab-content {
    background: var(--ups-bg-white);
    border: 1px solid var(--ups-border);
    border-radius: var(--ups-radius);
}

.ups-content-area {
    padding: 20px;
}

/* ==========================================================================
   Toolbar
   ========================================================================== */

.ups-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--ups-bg);
    border-radius: var(--ups-radius);
    margin-bottom: 20px;
}

.ups-product-count {
    font-size: 14px;
    color: var(--ups-text-light);
}

.ups-drag-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--ups-text-light);
}

.ups-drag-hint .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   Products List
   ========================================================================== */

.ups-products-wrapper {
    margin-bottom: 20px;
}

.ups-products-list {
    border: 1px solid var(--ups-border-light);
    border-radius: var(--ups-radius);
    overflow: hidden;
}

.ups-product-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    background: var(--ups-bg-white);
    border-bottom: 1px solid var(--ups-border-light);
    transition: background 0.15s ease, box-shadow 0.15s ease;
    cursor: grab;
}

.ups-product-item:last-child {
    border-bottom: none;
}

.ups-product-item:hover {
    background: #f8f9fa;
}

.ups-product-item.sortable-chosen {
    background: #e8f4fd;
    box-shadow: var(--ups-shadow);
}

.ups-product-item.sortable-ghost {
    background: #f0f6fc;
    opacity: 0.5;
}

.ups-product-item.sortable-selected {
    background: #e8f4fd;
    border-left: 3px solid var(--ups-primary);
}

/* Product Handle */
.ups-product-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    color: #a7aaad;
    cursor: grab;
}

.ups-product-handle .dashicons {
    font-size: 20px;
    width: 20px;
    height: 20px;
}

.ups-product-item:hover .ups-product-handle {
    color: var(--ups-text-light);
}

/* Product Image */
.ups-product-image {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
}

.ups-product-image img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: var(--ups-radius);
    border: 1px solid var(--ups-border-light);
}

/* Product Details */
.ups-product-details {
    flex: 1;
    min-width: 0;
}

.ups-product-name {
    font-weight: 500;
    color: var(--ups-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.ups-product-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--ups-text-light);
}

.ups-product-sku {
    color: #787c82;
}

.ups-product-stock {
    display: flex;
    align-items: center;
    gap: 3px;
}

.ups-product-stock .dashicons {
    font-size: 14px;
    width: 14px;
    height: 14px;
}

.ups-stock-instock {
    color: var(--ups-success);
}

.ups-stock-outofstock {
    color: var(--ups-error);
}

/* Product Price */
.ups-product-price {
    width: 100px;
    text-align: right;
    font-weight: 500;
    color: var(--ups-text);
}

.ups-product-price del {
    color: #999;
    font-weight: normal;
}

.ups-product-price ins {
    text-decoration: none;
    color: var(--ups-success);
}

/* Product Actions */
.ups-product-actions {
    display: flex;
    gap: 5px;
    flex-shrink: 0;
}

.ups-action-btn,
.ups-action-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--ups-border);
    border-radius: var(--ups-radius);
    background: var(--ups-bg-white);
    color: var(--ups-text-light);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.ups-action-btn:hover,
.ups-action-link:hover {
    background: var(--ups-bg);
    border-color: #8c8f94;
    color: var(--ups-text);
}

.ups-action-btn .dashicons,
.ups-action-link .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   Load More
   ========================================================================== */

.ups-load-more-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: var(--ups-bg);
    border-radius: var(--ups-radius);
    margin-top: 15px;
}

#ups-load-more {
    display: flex;
    align-items: center;
    gap: 6px;
}

#ups-load-more .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

.ups-load-progress {
    font-size: 13px;
    color: var(--ups-text-light);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.ups-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--ups-bg);
    border-radius: var(--ups-radius);
}

.ups-footer-actions {
    display: flex;
    gap: 10px;
}

#ups-save-order {
    display: flex;
    align-items: center;
    gap: 6px;
}

#ups-save-order .dashicons {
    font-size: 18px;
    width: 18px;
    height: 18px;
}

.ups-footer-hint {
    margin: 0;
    font-size: 13px;
    color: var(--ups-text-light);
    font-style: italic;
}

/* ==========================================================================
   Category Dropdown
   ========================================================================== */

.ups-category-filter {
    margin-bottom: 20px;
}

.ups-custom-dropdown {
    position: relative;
    display: inline-block;
}

.ups-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background: var(--ups-bg-white);
    border: 1px solid var(--ups-border);
    border-radius: var(--ups-radius);
    cursor: pointer;
    min-width: 280px;
    font-size: 14px;
    transition: border-color 0.15s ease;
}

.ups-dropdown-toggle:hover {
    border-color: var(--ups-primary);
}

.ups-dropdown-toggle.active {
    border-color: var(--ups-primary);
    box-shadow: 0 0 0 1px var(--ups-primary);
}

.ups-dropdown-text {
    flex: 1;
}

.ups-dropdown-arrow {
    font-size: 14px;
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.ups-dropdown-toggle.active .ups-dropdown-arrow {
    transform: rotate(180deg);
}

.ups-dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    display: none;
    min-width: 320px;
    max-width: 450px;
    max-height: 450px;
    background: var(--ups-bg-white);
    border: 1px solid var(--ups-border);
    border-radius: var(--ups-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-top: 4px;
    overflow: hidden;
}

.ups-dropdown-content.active {
    display: block;
}

/* Category Search */
.ups-category-search-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--ups-border-light);
    background: var(--ups-bg);
}

.ups-category-search-wrapper .dashicons-search {
    color: var(--ups-text-light);
    font-size: 16px;
    width: 16px;
    height: 16px;
}

.ups-category-search {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 14px;
    outline: none;
    padding: 4px 0;
}

.ups-category-search::placeholder {
    color: #a7aaad;
}

.ups-search-clear {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    color: var(--ups-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ups-search-clear:hover {
    color: var(--ups-error);
}

.ups-search-clear .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

/* Category Tree Wrapper */
.ups-category-tree-wrapper {
    max-height: 350px;
    overflow-y: auto;
    padding: 8px 0;
}

/* Category Tree */
.ups-category-tree,
.ups-category-children {
    margin: 0;
    padding: 0;
    list-style: none;
}

.ups-category-item {
    position: relative;
}

.ups-category-row {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    transition: background 0.15s ease;
}

.ups-category-row:hover {
    background: var(--ups-bg);
}

.ups-category-item.selected > .ups-category-row {
    background: #e8f4fd;
}

.ups-category-item.selected > .ups-category-row .ups-category-link {
    color: var(--ups-primary);
    font-weight: 500;
}

/* Expand Toggle Button */
.ups-expand-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    margin-right: 4px;
    background: none;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    color: var(--ups-text-light);
    transition: background 0.15s ease, color 0.15s ease;
    flex-shrink: 0;
}

.ups-expand-toggle:hover {
    background: var(--ups-border-light);
    color: var(--ups-text);
}

.ups-expand-toggle .dashicons {
    font-size: 16px;
    width: 16px;
    height: 16px;
}

.ups-expand-spacer {
    width: 24px;
    margin-right: 4px;
    flex-shrink: 0;
}

/* Category Link */
.ups-category-link {
    display: flex;
    align-items: center;
    flex: 1;
    padding: 4px 8px;
    color: var(--ups-text);
    text-decoration: none;
    border-radius: 3px;
    transition: background 0.15s ease;
    min-width: 0;
}

.ups-category-link:hover {
    background: rgba(0, 0, 0, 0.04);
}

.ups-category-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ups-category-count {
    margin-left: 8px;
    font-size: 12px;
    color: #999;
    flex-shrink: 0;
}

/* Children Wrapper with indentation */
.ups-children-wrapper {
    margin-left: 20px;
    border-left: 1px solid var(--ups-border-light);
}

/* Depth-based indentation for better hierarchy visibility */
.ups-category-item[data-depth="1"] > .ups-category-row {
    padding-left: 16px;
}

.ups-category-item[data-depth="2"] > .ups-category-row {
    padding-left: 20px;
}

.ups-category-item[data-depth="3"] > .ups-category-row {
    padding-left: 24px;
}

/* No Results */
.ups-no-results {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 30px 20px;
    color: var(--ups-text-light);
    font-size: 14px;
}

.ups-no-results .dashicons {
    font-size: 18px;
    width: 18px;
    height: 18px;
}

/* Search Match Highlight */
.ups-category-item.search-match > .ups-category-row {
    background: #fffbea;
}

.ups-category-item.search-hidden {
    display: none;
}

/* Expanded state arrow rotation */
.ups-category-item.expanded > .ups-category-row .ups-expand-toggle .dashicons {
    transform: rotate(0deg);
}

.ups-category-item:not(.expanded) > .ups-category-row .ups-expand-toggle .dashicons-arrow-down-alt2 {
    transform: rotate(-90deg);
}

/* ==========================================================================
   Empty States
   ========================================================================== */

.ups-no-products,
.ups-select-category {
    text-align: center;
    padding: 60px 20px;
    color: var(--ups-text-light);
}

.ups-no-products .dashicons,
.ups-select-category .dashicons {
    font-size: 48px;
    width: 48px;
    height: 48px;
    color: #c3c4c7;
    margin-bottom: 15px;
}

.ups-no-products h3,
.ups-select-category h3 {
    margin: 0 0 10px 0;
    color: var(--ups-text);
}

.ups-no-products p,
.ups-select-category p {
    margin: 0 0 20px 0;
}

/* ==========================================================================
   Modal
   ========================================================================== */

.ups-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ups-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.ups-modal-container {
    position: relative;
    background: var(--ups-bg-white);
    border-radius: var(--ups-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 450px;
    overflow: hidden;
}

.ups-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--ups-border-light);
}

.ups-modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.ups-modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    color: var(--ups-text-light);
    transition: color 0.15s ease;
}

.ups-modal-close:hover {
    color: var(--ups-text);
}

.ups-modal-body {
    padding: 20px;
}

.ups-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 15px 20px;
    background: var(--ups-bg);
    border-top: 1px solid var(--ups-border-light);
}

/* Modal States */
.ups-modal-success,
.ups-modal-error {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 10px 0;
}

.ups-modal-success .dashicons {
    font-size: 40px;
    width: 40px;
    height: 40px;
    color: var(--ups-success);
}

.ups-modal-error .dashicons {
    font-size: 40px;
    width: 40px;
    height: 40px;
    color: var(--ups-error);
}

/* ==========================================================================
   Settings
   ========================================================================== */

.ups-settings-area {
    max-width: 800px;
}

.ups-settings-section {
    margin-bottom: 20px;
}

.ups-settings-card {
    background: var(--ups-bg-white);
    border: 1px solid var(--ups-border-light);
    border-radius: var(--ups-radius);
    overflow: hidden;
}

.ups-settings-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: var(--ups-bg);
    border-bottom: 1px solid var(--ups-border-light);
}

.ups-settings-icon {
    font-size: 20px;
}

.ups-settings-card-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.ups-settings-card-body {
    padding: 20px;
}

.ups-settings-description {
    margin: 0 0 20px 0;
    color: var(--ups-text-light);
}

.ups-settings-card .form-table th {
    width: 200px;
    padding: 15px 10px 15px 0;
}

.ups-settings-card .form-table td {
    padding: 15px 0;
}

.ups-settings-card .form-table td p {
    margin: 0 0 5px 0;
}

.ups-settings-card .form-table td p:last-child {
    margin-bottom: 0;
}

.ups-settings-card .form-table label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 3px;
}

.ups-settings-card .form-table .description {
    display: block;
    margin-left: 24px;
    font-size: 13px;
    color: var(--ups-text-light);
}

.ups-recommended-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--ups-success);
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    border-radius: 3px;
    text-transform: uppercase;
}

.ups-settings-submit {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--ups-border-light);
}

/* Info Card */
.ups-info-card .ups-settings-card-body {
    color: var(--ups-text-light);
}

.ups-info-card h4 {
    margin: 0 0 10px 0;
    color: var(--ups-text);
    font-size: 14px;
}

.ups-info-card ul {
    margin: 0 0 15px 20px;
}

.ups-info-card li {
    margin-bottom: 5px;
}

.ups-info-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.ups-info-note {
    display: flex;
    gap: 10px;
    padding: 15px;
    background: #fef8e7;
    border: 1px solid #f0c930;
    border-radius: var(--ups-radius);
}

.ups-info-note .dashicons {
    color: var(--ups-warning);
    flex-shrink: 0;
}

.ups-info-note p {
    margin: 0;
    font-size: 13px;
}

/* ==========================================================================
   Notices
   ========================================================================== */

.ups-notice {
    margin: 15px 0;
}

/* ==========================================================================
   Response Messages
   ========================================================================== */

.ups-response {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99999;
    padding: 15px 20px;
    background: var(--ups-bg-white);
    border-radius: var(--ups-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-width: 400px;
}

.ups-response.ups-success {
    border-left: 4px solid var(--ups-success);
}

.ups-response.ups-error {
    border-left: 4px solid var(--ups-error);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
    .ups-tabs-nav {
        flex-direction: column;
    }

    .ups-tab-link {
        border-right: none;
        border-bottom: 1px solid var(--ups-border);
    }

    .ups-tab-link:last-of-type {
        border-bottom: none;
    }

    .ups-header-links {
        margin-left: 0;
        padding: 10px 15px;
        border-top: 1px solid var(--ups-border);
    }

    .ups-toolbar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .ups-product-item {
        flex-wrap: wrap;
    }

    .ups-product-details {
        flex-basis: calc(100% - 95px);
        order: 1;
    }

    .ups-product-price {
        width: auto;
        order: 2;
    }

    .ups-product-actions {
        width: 100%;
        justify-content: flex-end;
        order: 3;
        margin-top: 10px;
    }

    .ups-footer {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .ups-wrap {
        margin: 10px 10px 10px 0;
    }

    .ups-product-item {
        padding: 10px;
    }

    .ups-product-image {
        width: 40px;
        height: 40px;
    }

    .ups-product-image img {
        width: 40px;
        height: 40px;
    }

    .ups-product-meta {
        flex-direction: column;
        gap: 5px;
    }
}