/**
 * Search Results Page Styles
 * 
 * QIANMIAO Theme - Enhanced Search Experience
 * @since 3.7.5
 */

/* Prevent horizontal overflow on search page */
body.search-results {
    overflow-x: hidden;
}

/* ============================================
   Search Results Header
   ============================================ */
.search-results-header {
    background: linear-gradient(135deg, #0095de 0%, #007ab8 100%);
    padding: 40px 0 50px;
    color: white;
    overflow: hidden;
}

.search-results-header .breadcrumb {
    margin-bottom: 20px;
}

.search-results-header .breadcrumb a {
    color: rgba(255,255,255,0.7);
}

.search-results-header .breadcrumb a:hover {
    color: white;
}

.search-results-header .breadcrumb-sep {
    color: rgba(255,255,255,0.4);
    margin: 0 8px;
}

.search-results-header .breadcrumb-current {
    color: rgba(255,255,255,0.9);
}

.search-header-content {
    text-align: center;
    margin-bottom: 30px;
}

.search-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    color: white;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.search-keyword {
    color: #fef08a;
    word-break: break-all;
}

.search-summary {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    margin: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.search-summary strong {
    color: white;
    font-weight: 600;
}

/* Search Box */
.search-box-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    gap: 12px;
    background: white;
    padding: 8px;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px -10px rgba(0,0,0,0.3);
}

.search-box-inner {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
}

.search-box-inner .icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.search-box-inner input {
    flex: 1;
    border: none;
    background: none;
    font-size: 16px;
    color: var(--color-text);
    outline: none;
    padding: 12px 0;
}

.search-box-inner input::placeholder {
    color: var(--color-text-muted);
}

.search-box-clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: var(--color-text-muted);
    transition: all 0.2s;
}

.search-box-clear:hover {
    background: var(--color-bg-light);
    color: var(--color-text);
}

.search-box-clear .icon {
    width: 16px;
    height: 16px;
}

.search-box .btn {
    padding: 12px 28px;
    white-space: nowrap;
}

/* ============================================
   Filter Tabs
   ============================================ */
.search-filters-bar {
    background: white;
    border-bottom: 1px solid var(--color-border-light);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.search-filter-tabs {
    display: flex;
    gap: 4px;
    padding: 12px 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.search-filter-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s;
}

.search-filter-tab .icon {
    width: 16px;
    height: 16px;
}

.search-filter-tab .count {
    padding: 2px 8px;
    background: var(--color-bg-light);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.search-filter-tab:hover {
    background: var(--color-bg-light);
    color: var(--color-text);
}

.search-filter-tab.active {
    background: var(--color-primary);
    color: white;
}

.search-filter-tab.active .count {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* ============================================
   Search Results Grid
   ============================================ */
.search-results-section {
    padding: 40px 0 60px;
    background: var(--color-bg-light);
    min-height: 400px;
    overflow-x: hidden;
}

.search-results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 100%;
}

/* Result Card */
.search-result-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    transition: all 0.25s;
    max-width: 100%;
}

.search-result-card:hover {
    box-shadow: 0 8px 24px -8px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.result-card-inner {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    height: 100%;
    max-width: 100%;
    overflow: hidden;
}

/* Card Image - Square ratio */
.result-card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    flex-shrink: 0;
    overflow: hidden;
}

.result-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.result-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e8f4fd 0%, #d1ebfc 100%);
}

.result-image-placeholder .icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    opacity: 0.5;
}

.result-image-placeholder.article {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.result-image-placeholder.article .icon {
    color: #d97706;
}

.result-type-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.result-type-badge.product {
    background: var(--color-primary);
    color: white;
}

.result-type-badge.article {
    background: #fef3c7;
    color: #92400e;
}

/* Card Content */
.result-card-content {
    flex: 1;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.result-category {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-primary);
    margin-bottom: 6px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.search-result-article .result-category {
    color: #d97706;
}

.result-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
}

.result-meta .meta-item {
    font-size: 13px;
    color: var(--color-text-secondary);
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.result-meta .meta-item strong {
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Hide Molecular Formula (second meta-item only) */
.search-result-card .result-meta .meta-item:nth-child(2) {
    display: none !important;
}

.result-excerpt {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin: 0 0 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.result-date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.result-date .icon {
    width: 14px;
    height: 14px;
}

/* Card Arrow - Hidden in new card layout */
.result-card-arrow {
    display: none;
}

.result-card-arrow .icon {
    width: 20px;
    height: 20px;
}

.search-result-card:hover .result-card-arrow {
    color: var(--color-primary);
    transform: translateX(4px);
}

/* ============================================
   No Results State
   ============================================ */
.search-no-results-page {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: var(--radius-lg);
}

.no-results-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--color-bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.no-results-icon .icon {
    width: 40px;
    height: 40px;
    color: var(--color-text-muted);
}

.search-no-results-page h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 12px;
}

.search-no-results-page > p {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin: 0 0 30px;
}

.no-results-suggestions {
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-bottom: 30px;
    text-align: left;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.no-results-suggestions h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 12px;
}

.no-results-suggestions ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.no-results-suggestions li {
    font-size: 14px;
    color: var(--color-text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.no-results-suggestions li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

.no-results-suggestions a {
    color: var(--color-primary);
    text-decoration: none;
}

.no-results-suggestions a:hover {
    text-decoration: underline;
}

.no-results-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Empty Search State
   ============================================ */
.search-empty-state {
    padding: 80px 0;
    background: var(--color-bg-light);
}

.empty-state-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.empty-state-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 30px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.empty-state-icon .icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
}

.empty-state-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 12px;
}

.empty-state-content > p {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin: 0 0 40px;
}

.popular-searches {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.popular-searches h4 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin: 0 0 16px;
}

.popular-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.popular-tag {
    display: inline-flex;
    align-items: center;
    padding: 10px 18px;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s;
}

.popular-tag:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ============================================
   Responsive
   ============================================ */
@media (min-width: 768px) {
    .search-results-header {
        padding: 50px 0 60px;
    }
    
    .search-title {
        font-size: 40px;
    }
    
    /* Tablet: 3 columns */
    .search-results-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media (min-width: 1200px) {
    /* Desktop: 4 columns */
    .search-results-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    
    .result-title {
        font-size: 16px;
    }
}

@media (max-width: 767px) {
    .search-results-header {
        padding: 30px 0 40px;
    }
    
    .search-title {
        font-size: 24px;
    }
    
    .search-summary {
        font-size: 14px;
    }
    
    .search-box {
        flex-direction: column;
        gap: 8px;
        padding: 12px;
    }
    
    .search-box-inner {
        padding: 0 12px;
    }
    
    .search-box .btn {
        width: 100%;
    }
    
    .search-filters-bar {
        top: 60px;
    }
    
    .search-filter-tabs {
        padding: 10px 0;
        gap: 8px;
    }
    
    .search-filter-tab {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    /* Mobile: 2 columns with smaller cards */
    .search-results-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .result-card-content {
        padding: 12px;
    }
    
    .result-title {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    .result-category {
        font-size: 10px;
        margin-bottom: 4px;
    }
    
    .result-meta .meta-item {
        font-size: 11px;
    }
    
    .result-excerpt {
        font-size: 12px;
        -webkit-line-clamp: 2;
    }
    
    .result-date {
        font-size: 11px;
    }
    
    .search-no-results-page {
        padding: 40px 16px;
    }
    
    .no-results-actions {
        flex-direction: column;
    }
    
    .no-results-actions .btn {
        width: 100%;
    }
}

/* ============================================
   Enhanced Search Overlay Styles
   ============================================ */

/* Keyboard navigation highlight */
.search-result-item.highlighted,
.search-result-item:focus {
    background: var(--color-bg-light);
    outline: none;
}

/* Search history section */
.search-history {
    margin-bottom: 20px;
}

.search-history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.search-history-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.search-history-clear {
    font-size: 11px;
    color: var(--color-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.search-history-clear:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.search-history-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.search-history-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s;
}

.search-history-item .icon {
    width: 12px;
    height: 12px;
    color: var(--color-text-muted);
}

.search-history-item:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Quick actions in results */
.search-result-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
    flex-shrink: 0;
}

.search-result-action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.search-result-action:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

.search-result-action .icon {
    width: 16px;
    height: 16px;
}

/* View all results link */
.search-view-all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    margin: 12px -12px -16px;
    background: var(--color-bg-light);
    border-top: 1px solid var(--color-border-light);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.2s;
}

.search-view-all:hover {
    background: var(--color-bg-card);
}

.search-view-all .icon {
    width: 16px;
    height: 16px;
}

/* Product image in search results */
.search-result-item .search-result-thumb {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

/* Highlighted text in search results */
.search-highlight {
    background: #fef08a;
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

/* Divider between result types */
.search-results-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 16px 0;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.search-results-divider::before,
.search-results-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--color-border-light);
}

/* Search shortcuts hint */
.search-shortcuts {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 12px 20px;
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-light);
    font-size: 12px;
    color: var(--color-text-muted);
}

.search-shortcut {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.search-shortcut kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-secondary);
}