/**
 * Elga Category Builder - Frontend Styles
 * Scoped to .elga-builder to prevent theme conflicts.
 *
 * @package ElgaCategoryBuilder
 */

/* === Reset & Container === */
.elga-builder {
    --elga-columns-desktop: 4;
    --elga-columns-tablet: 3;
    --elga-columns-mobile: 2;
    --elga-spacing: 20px;
    --elga-card-radius: 12px;
    --elga-button-radius: 25px;
    --elga-button-color: #2271b1;
    --elga-button-text-color: #ffffff;
    --elga-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --elga-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --elga-transition: 0.3s ease;

    box-sizing: border-box;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
}

.elga-builder *,
.elga-builder *::before,
.elga-builder *::after {
    box-sizing: border-box;
}

/* === Search Section === */
.elga-builder__search-section {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.elga-search,
.elga-category-search {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.elga-search__input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: var(--elga-button-radius);
    font-size: 14px;
    line-height: 1.5;
    transition: border-color var(--elga-transition);
    background: #ffffff;
    color: #1a202c;
    outline: none;
}

.elga-search__input:focus {
    border-color: var(--elga-button-color);
    box-shadow: 0 0 0 3px rgba(34, 113, 177, 0.1);
}

.elga-search__input::placeholder {
    color: #a0aec0;
}

/* === Search Results Dropdown === */
.elga-search__results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 100;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    margin-top: 4px;
    max-height: 320px;
    overflow-y: auto;
    display: none;
}

.elga-search__results.is-active {
    display: block;
}

.elga-search__result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    text-decoration: none;
    color: #1a202c;
    transition: background var(--elga-transition);
    border-bottom: 1px solid #f1f5f9;
}

.elga-search__result-item:last-child {
    border-bottom: none;
}

.elga-search__result-item:hover,
.elga-search__result-item:focus {
    background: #f7fafc;
    outline: none;
}

.elga-search__result-image {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 6px;
    flex-shrink: 0;
}

.elga-search__result-info {
    flex: 1;
    min-width: 0;
}

.elga-search__result-name {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.elga-search__result-price {
    font-size: 12px;
    color: #718096;
}

.elga-search__no-results {
    padding: 16px;
    text-align: center;
    color: #718096;
    font-size: 14px;
}

/* === Grid Layout === */
.elga-builder__grid {
    display: grid;
    grid-template-columns: repeat(var(--elga-columns-desktop), 1fr);
    gap: var(--elga-spacing);
}

/* === Category Card === */
.elga-card {
    background: #ffffff;
    border-radius: var(--elga-card-radius);
    box-shadow: var(--elga-shadow);
    overflow: hidden;
    transition: transform var(--elga-transition), box-shadow var(--elga-transition);
    display: flex;
    flex-direction: column;
}

.elga-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--elga-shadow-hover);
}

.elga-card__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
    outline: none;
}

.elga-card__link:focus-visible {
    outline: 3px solid var(--elga-button-color);
    outline-offset: 2px;
    border-radius: var(--elga-card-radius);
}

/* === Card Image === */
.elga-card__image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%;
    overflow: hidden;
    background: #f7fafc;
}

.elga-card__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.elga-card:hover .elga-card__image {
    transform: scale(1.05);
}

/* === Card Parent Label === */
.elga-card__parent {
    display: block;
    padding: 6px 12px 0;
    font-size: 11px;
    font-weight: 500;
    color: #718096;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-style: italic;
}

/* === Card Content === */
.elga-card__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 12px 16px;
    flex: 1;
    justify-content: space-between;
    text-align: center;
}

.elga-card__title {
    font-size: 14px;
    font-weight: 600;
    color: #1a202c;
    margin: 0 0 10px;
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.elga-card__count {
    font-weight: 700;
    color: #4a5568;
}

/* === Card Button === */
.elga-card__button {
    display: inline-block;
    padding: 8px 20px;
    background: var(--elga-button-color);
    color: var(--elga-button-text-color);
    border-radius: var(--elga-button-radius);
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    transition: background var(--elga-transition), transform var(--elga-transition);
    white-space: nowrap;
}

.elga-card:hover .elga-card__button {
    background: color-mix(in srgb, var(--elga-button-color) 85%, black);
    transform: scale(1.02);
}

/* === Empty State === */
.elga-builder__empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #718096;
    font-size: 16px;
}

/* === Pagination === */
.elga-builder__pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 32px;
    gap: 16px;
}

.elga-builder__load-more {
    padding: 12px 32px;
    background: var(--elga-button-color);
    color: var(--elga-button-text-color);
    border: none;
    border-radius: var(--elga-button-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--elga-transition), transform var(--elga-transition);
}

.elga-builder__load-more:hover {
    background: color-mix(in srgb, var(--elga-button-color) 85%, black);
    transform: scale(1.02);
}

.elga-builder__load-more:focus-visible {
    outline: 3px solid var(--elga-button-color);
    outline-offset: 3px;
}

.elga-builder__load-more:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* === Spinner === */
.elga-builder__spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid #e2e8f0;
    border-top-color: var(--elga-button-color);
    border-radius: 50%;
    animation: elga-spin 0.8s linear infinite;
}

@keyframes elga-spin {
    to { transform: rotate(360deg); }
}

/* === Skeleton Loader === */
.elga-card--skeleton {
    pointer-events: none;
}

.elga-card--skeleton .elga-card__image-wrapper {
    background: #e2e8f0;
}

.elga-skeleton-pulse {
    animation: elga-pulse 1.5s ease-in-out infinite;
    background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
    background-size: 200% 100%;
}

@keyframes elga-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.elga-skeleton-text {
    height: 16px;
    width: 80%;
    border-radius: 4px;
    margin-bottom: 10px;
}

.elga-skeleton-button {
    height: 34px;
    width: 120px;
    border-radius: var(--elga-button-radius);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .elga-builder__grid {
        grid-template-columns: repeat(var(--elga-columns-tablet), 1fr);
    }
}

@media (max-width: 768px) {
    .elga-builder__grid {
        grid-template-columns: repeat(var(--elga-columns-mobile), 1fr);
    }

    .elga-builder__search-section {
        flex-direction: column;
    }

    .elga-card__title {
        font-size: 13px;
    }

    .elga-card__button {
        padding: 7px 16px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .elga-builder__grid {
        grid-template-columns: 1fr;
    }

    .elga-builder {
        padding: 12px 0;
    }
}

/* === Accessibility === */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
    .elga-card,
    .elga-card__image,
    .elga-card__button,
    .elga-builder__load-more {
        transition: none;
    }

    .elga-card:hover {
        transform: none;
    }

    .elga-card:hover .elga-card__image {
        transform: none;
    }

    .elga-skeleton-pulse {
        animation: none;
        background: #e2e8f0;
    }
}