/* ============================================================
   MTB CATALOG PRO - OPTIMIZED STYLESHEET v2.0
   Organized, minified duplicates removed, performance-focused
   ============================================================ */

/* ============================================================
   1. CSS VARIABLES & ROOT STYLES
   ============================================================ */
:root {
    --mtb-accent: #0066ff;
    --mtb-border: #e2e8f0;
    --mtb-text: #1e293b;
    --mtb-muted: #64748b;
    --mtb-bg-light: #f8fafc;
    --mtb-transition: 0.2s ease;
    --mtb-radius: 12px;
    --mtb-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

/* ============================================================
   2. MAIN LAYOUT STRUCTURE
   ============================================================ */
.mtb-layout {
    display: flex;
    gap: 30px;
    margin: 40px 0;
    align-items: flex-start;
}

.mtb-sidebar {
    flex: 0 0 250px;
    position: sticky;
    top: 20px;
    max-height: 90vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--mtb-border) transparent;
}

.mtb-sidebar::-webkit-scrollbar {
    width: 6px;
}

.mtb-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.mtb-sidebar::-webkit-scrollbar-thumb {
    background: var(--mtb-border);
    border-radius: 3px;
}

.mtb-main {
    flex: 1;
    min-width: 0; /* Fix flex overflow */
}

.mtb-controls {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
}

/* ============================================================
   3. FILTER SIDEBAR WIDGETS
   ============================================================ */
.mtb-filter-widget {
    background: #fff;
    border: 1px solid var(--mtb-border);
    padding: 15px;
    border-radius: var(--mtb-radius);
    margin-bottom: 12px;
}

.mtb-filter-widget label.section-title {
    font-size: 13px;
    font-weight: 800;
    color: var(--mtb-muted);
    display: block;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mtb-search-input {
    width: 100%;
    border: 1px solid #ddd;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color var(--mtb-transition);
}

.mtb-search-input:focus {
    outline: none;
    border-color: var(--mtb-accent);
}

.mtb-filter-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin-top: 6px;
    cursor: pointer;
    transition: color var(--mtb-transition);
}

.mtb-filter-item:hover {
    color: var(--mtb-accent);
}

.mtb-filter-checkbox {
    cursor: pointer;
}

/* ============================================================
   4. CATALOG GRID VIEW (Clean & Minimal)
   ============================================================ */
.mtb-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.bike-card {
    background: #fff;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.2s;
    position: relative;
}

.bike-card:hover {
    transform: translateY(-5px);
}

.bike-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    background: #f9f9f9;
    border-radius: 8px;
    margin-bottom: 15px;
}

.card-content {
    width: 100%;
}

.bike-card-header {
    width: 100%;
}

.bike-card-brand {
    font-size: 12px;
    font-weight: 700;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 8px;
}

.bike-card-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.list-only-specs {
    display: none !important;
}

/* ============================================================
   5. CATALOG LIST VIEW (Simplified)
   ============================================================ */
.view-list {
    display: block !important;
}

.view-list .bike-card {
    flex-direction: row;
    align-items: center;
    gap: 30px;
    margin-bottom: 20px;
    text-align: left;
}

.view-list .bike-card:hover {
    transform: translateX(5px);
}

.view-list .bike-card img {
    width: 250px;
    height: 180px;
    margin: 0;
    flex-shrink: 0;
}

.view-list .card-content {
    flex: 1;
    align-items: flex-start;
    text-align: left;
}

.view-list .bike-card-brand,
.view-list .bike-card-title {
    text-align: left;
}

.view-list .list-only-specs {
    display: flex !important;
    flex-direction: column;
    gap: 8px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.list-spec-item {
    display: flex;
    font-size: 13px;
    gap: 10px;
}

.list-spec-item span:first-child {
    min-width: 140px;
    font-weight: 700;
    color: #666;
}

.list-spec-item span:last-child {
    color: #333;
}

/* ============================================================
   6. COMPARE BUTTON (Simplified)
   ============================================================ */
.mtb-compare-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mtb-compare-btn:hover,
.mtb-compare-btn.active {
    background: #333;
    color: #fff;
    border-color: #333;
}

/* ============================================================
   7. COMPARE BAR (Floating)
   ============================================================ */
#mtb-compare-bar {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    color: #fff;
    padding: 15px 30px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#mtb-compare-bar.visible {
    bottom: 30px;
}

.compare-action-btn {
    background: #fff;
    color: #1e293b;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: background var(--mtb-transition);
}

.compare-action-btn:hover {
    background: var(--mtb-border);
}

.btn-transparent {
    background: transparent !important;
    color: #fff !important;
    border: 1px solid #fff !important;
}

.btn-transparent:hover {
    background: rgba(255, 255, 255, 0.1) !important;
}

/* ============================================================
   8. COMPARE VIEW
   ============================================================ */
#mtb-compare-view {
    display: none;
    background: #fff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--mtb-shadow);
}

.compare-grid {
    display: grid;
    gap: 0;
    border: 1px solid var(--mtb-border);
    overflow-x: auto;
}

.compare-header-cell {
    padding: 20px;
    border-bottom: 2px solid var(--mtb-border);
    text-align: center;
    font-weight: 800;
}

.compare-cell {
    padding: 15px;
    border-bottom: 1px solid var(--mtb-border);
    border-right: 1px solid var(--mtb-border);
    text-align: center;
}

.compare-label {
    text-align: left;
    font-weight: bold;
    color: var(--mtb-muted);
    background: var(--mtb-bg-light);
    position: sticky;
    left: 0;
}

.compare-img {
    width: 100px;
    height: auto;
    margin-bottom: 10px;
    border-radius: 8px;
}

.compare-remove-btn {
    color: #ef4444;
    cursor: pointer;
    font-size: 12px;
    margin-top: 5px;
    display: inline-block;
    text-decoration: underline;
}

.compare-remove-btn:hover {
    color: #dc2626;
}

/* ============================================================
   9. PRODUCT DETAIL VIEW
   ============================================================ */
#mtb-product-view {
    display: none;
    background: #fff;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--mtb-border);
}

.mtb-back-btn {
    cursor: pointer;
    color: var(--mtb-accent);
    font-weight: 800;
    margin-bottom: 30px;
    display: inline-block;
    transition: transform var(--mtb-transition);
}

.mtb-back-btn:hover {
    transform: translateX(-5px);
}

.mtb-product-title {
    font-size: 42px;
    margin: 10px 0;
    color: var(--mtb-text);
}

.mtb-main-img {
    width: 100%;
    max-width: 800px;
    display: block;
    margin: 20px auto;
    border-radius: 16px;
    border: 1px solid var(--mtb-border);
    cursor: zoom-in;
    transition: transform 0.3s ease;
}

.mtb-main-img:hover {
    transform: scale(1.01);
}

.mtb-thumbs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.mtb-thumb-img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--mtb-transition);
}

.mtb-thumb-img:hover {
    border-color: var(--mtb-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.mtb-desc-container {
    margin-top: 30px;
    padding: 20px 0;
    border-top: 1px solid var(--mtb-border);
}

.mtb-desc-container h3 {
    color: var(--mtb-text);
    margin-bottom: 15px;
}

.mtb-desc-content {
    color: #555;
    line-height: 1.6;
}

/* ============================================================
   10. PRODUCT SPECIFICATIONS LAYOUT
   ============================================================ */
.mtb-spec-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-top: 40px;
    width: 100%;
}

.mtb-spec-section {
    display: block;
    width: 100%;
}

.mtb-spec-header {
    font-size: 14px;
    font-weight: 800;
    color: var(--mtb-muted);
    text-transform: uppercase;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mtb-spec-box {
    background-color: #f2f2f2;
    border-radius: 16px;
    padding: 30px;
    width: 100%;
    box-sizing: border-box;
}

.mtb-spec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px 40px;
    width: 100%;
}

.mtb-spec-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding-bottom: 15px;
}

/* Remove border from last row items */
.mtb-spec-item:nth-last-child(-n+3) {
    border-bottom: none;
}

.mtb-spec-item label {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.4;
    margin-bottom: 4px;
}

.mtb-spec-item span {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #111;
    line-height: 1.3;
}

.mtb-disclaimer {
    font-size: 14px;
    text-transform: none;
    color: #888;
    font-weight: normal;
}

/* ============================================================
   11. AFFILIATE BUTTON
   ============================================================ */
.mtb-affiliate-wrap {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
}

.mtb-affiliate-btn {
    display: inline-block;
    background: var(--mtb-accent);
    color: #fff;
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: transform var(--mtb-transition), box-shadow var(--mtb-transition);
}

.mtb-affiliate-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

/* ============================================================
   12. RANGE SLIDERS
   ============================================================ */
.mtb-slider-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 13px;
    font-weight: 700;
    color: var(--mtb-muted);
}

.mtb-range-wrapper {
    position: relative;
    width: 100%;
    height: 30px;
}

.mtb-range-track {
    position: absolute;
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    top: 50%;
    margin-top: -3px;
    border-radius: 3px;
}

.mtb-range-input {
    position: absolute;
    width: 100%;
    height: 30px;
    pointer-events: none;
    -webkit-appearance: none;
    appearance: none;
    top: 0;
    left: 0;
    margin: 0;
    background: transparent;
    z-index: 20;
}

.mtb-range-input::-webkit-slider-thumb {
    pointer-events: auto;
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--mtb-accent);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 30;
}

.mtb-range-input::-moz-range-thumb {
    pointer-events: auto;
    width: 20px;
    height: 20px;
    background: var(--mtb-accent);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 30;
}

.mtb-range-input::-webkit-slider-runnable-track {
    width: 100%;
    height: 30px;
    cursor: pointer;
    background: transparent;
    border: none;
}

/* ============================================================
   13. LIGHTBOX OVERLAY
   ============================================================ */
#mtb-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 99999;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

#lb-img {
    max-width: 95%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}

.lb-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 60px;
    cursor: pointer;
    line-height: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    transition: color var(--mtb-transition);
}

.lb-close:hover {
    color: var(--mtb-accent);
}

.lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 40px;
    font-weight: 700;
    padding: 16px;
    cursor: pointer;
    user-select: none;
    transition: all var(--mtb-transition);
    background: rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100000;
}

.lb-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--mtb-accent);
}

.lb-prev { left: 30px; }
.lb-next { right: 30px; }

/* ============================================================
   14. ADMIN STYLES
   ============================================================ */
.mtb-admin-wrap {
    padding: 10px;
}

.mtb-admin-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.mtb-admin-card {
    background: #fff;
    border: 1px solid #ccd0d4;
    padding: 15px;
    border-radius: 4px;
}

.mtb-admin-card h4 {
    margin-top: 0;
}

.mtb-input-full {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    margin-bottom: 10px;
    border-radius: 4px;
}

.mtb-attr-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.mtb-attr-field {
    background: #f9f9f9;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.mtb-attr-field label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
    font-size: 13px;
}

.mtb-attr-field select {
    width: 100%;
    padding: 6px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.quick-add {
    width: 100%;
    margin-top: 5px;
    font-size: 11px;
    padding: 4px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.mtb-gallery-preview {
    margin-bottom: 10px;
    min-height: 60px;
}

.mtb-gallery-preview img {
    width: 60px;
    height: 60px;
    margin-right: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    object-fit: cover;
}

/* ============================================================
   15. RESPONSIVE DESIGN
   ============================================================ */
@media (max-width: 1200px) {
    .mtb-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .mtb-layout {
        flex-direction: column;
    }
    
    .mtb-sidebar {
        width: 100%;
        position: relative;
        max-height: none;
        order: 2;
    }
    
    .mtb-main {
        order: 1;
    }
    
    .mtb-attr-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mtb-spec-box {
        padding: 20px;
    }
    
    .mtb-spec-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .mtb-product-title {
        font-size: 32px;
    }
    
    #mtb-product-view {
        padding: 20px;
    }
    
    .mtb-admin-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .mtb-grid {
        grid-template-columns: 1fr;
    }
    
    .view-list .bike-card {
        flex-direction: column;
    }
    
    .view-list .bike-card img {
        width: 100%;
        height: auto;
    }
    
    .mtb-spec-grid {
        grid-template-columns: 1fr;
    }
    
    .lb-nav {
        font-size: 24px;
        width: 40px;
        height: 40px;
        padding: 5px;
    }
    
    .lb-prev { left: 10px; }
    .lb-next { right: 10px; }
    
    .lb-close {
        font-size: 40px;
        top: 10px;
        right: 15px;
    }
    
    #mtb-compare-bar {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .mtb-attr-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .bike-card {
        padding: 15px;
    }
    
    .mtb-product-title {
        font-size: 24px;
    }
    
    .list-spec-item span:first-child {
        width: 120px;
        font-size: 12px;
    }
}

/* ============================================================
   16. PERFORMANCE OPTIMIZATIONS
   ============================================================ */

/* Use will-change for frequently animated elements */
.bike-card,
.mtb-compare-btn,
.mtb-back-btn,
.lb-nav {
    will-change: transform;
}

/* Force GPU acceleration for transforms */
.bike-card,
.mtb-main-img,
.lb-nav {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================
   17. LATEST BIKES SHOWCASE (mtb_latest_bikes shortcode)
   ============================================================ */
.mtb-latest-bikes {
    display: grid;
    gap: 20px;
    margin: 40px 0;
}

/* Dynamic columns based on data attribute */
.mtb-latest-bikes[data-columns="5"] {
    grid-template-columns: repeat(5, 1fr);
}

.mtb-latest-bikes[data-columns="4"] {
    grid-template-columns: repeat(4, 1fr);
}

.mtb-latest-bikes[data-columns="3"] {
    grid-template-columns: repeat(3, 1fr);
}

.mtb-latest-bikes[data-columns="2"] {
    grid-template-columns: repeat(2, 1fr);
}

.mtb-latest-bike-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.mtb-latest-bike-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.mtb-latest-bike-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.mtb-latest-bike-image {
    width: 280px;
    height: 280px;
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.mtb-latest-bike-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.mtb-latest-bike-card:hover .mtb-latest-bike-image img {
    transform: scale(1.05);
}

.mtb-no-image {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
}

.mtb-latest-bike-info {
    padding: 20px;
    text-align: center;
}

.mtb-latest-bike-brand {
    font-size: 14px;
    font-weight: 800;
    color: var(--mtb-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.mtb-latest-bike-model {
    font-size: 18px;
    font-weight: 600;
    color: var(--mtb-text);
    line-height: 1.3;
}

/* Responsive adjustments */
@media (max-width: 1400px) {
    .mtb-latest-bikes[data-columns="5"] {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1200px) {
    .mtb-latest-bikes[data-columns="5"],
    .mtb-latest-bikes[data-columns="4"] {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .mtb-latest-bikes[data-columns="5"],
    .mtb-latest-bikes[data-columns="4"],
    .mtb-latest-bikes[data-columns="3"] {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .mtb-latest-bike-image {
        width: 100%;
        height: auto;
        aspect-ratio: 1 / 1;
    }
}

@media (max-width: 600px) {
    .mtb-latest-bikes {
        grid-template-columns: 1fr !important;
    }
    
    .mtb-latest-bike-image {
        width: 280px;
        height: 280px;
        max-width: 100%;
    }
}