/**
 * Build Your Kit - Frontend Styles
 *
 * Styled to match McLean Sling branding
 * Layout similar to Stio's kit builder
 *
 * @package BuildYourKit
 */

/* ==========================================================================
   CSS Variables - McLean Sling Branding
   ========================================================================== */

:root {
    /* McLean Brand Colors */
    --byk-primary: #fcb316;
    --byk-primary-hover: #e5a214;
    --byk-secondary: #3a3a3a;
    --byk-secondary-hover: #2a2a2a;

    /* Text Colors */
    --byk-text-dark: #3a3a3a;
    --byk-text-body: #4B4F58;
    --byk-text-muted: #777777;

    /* Background Colors */
    --byk-bg-light: #F5F5F5;
    --byk-bg-white: #FFFFFF;
    --byk-bg-dark: #3a3a3a;

    /* Border Colors */
    --byk-border: #E6E6E6;
    --byk-border-dark: #cccccc;

    /* Status Colors */
    --byk-success: #28a745;
    --byk-error: #dc3545;

    /* Typography */
    --byk-font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --byk-font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;

    /* Spacing */
    --byk-spacing-xs: 5px;
    --byk-spacing-sm: 10px;
    --byk-spacing-md: 15px;
    --byk-spacing-lg: 20px;
    --byk-spacing-xl: 30px;
    --byk-spacing-xxl: 40px;

    /* Layout */
    --byk-sidebar-width: 380px;
    --byk-max-width: 1400px;

    /* Transitions */
    --byk-transition: 0.2s ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

.byk-kit-builder {
    max-width: var(--byk-max-width);
    margin: 0 auto;
    padding: var(--byk-spacing-lg);
    font-family: var(--byk-font-body);
    font-size: 15px;
    line-height: 1.65;
    color: var(--byk-text-body);
    background: var(--byk-bg-white);
}

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

/* iOS Touch Optimizations - Remove 300ms tap delay and add tap feedback */
.byk-card-action-add,
.byk-more-info-btn,
.byk-add-kit-btn,
.byk-mobile-add-kit-btn,
.byk-next-btn,
.byk-prev-btn,
.byk-nav-btn,
.byk-mobile-kit-button,
.byk-mobile-kit-modal-close,
.byk-view-more-btn,
.byk-modal-add-btn,
.byk-modal-close {
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(252, 179, 22, 0.3);
}

.byk-kit-builder h1,
.byk-kit-builder h2,
.byk-kit-builder h3,
.byk-kit-builder h4 {
    font-family: var(--byk-font-heading);
    font-weight: 800;
    color: var(--byk-text-dark);
    margin: 0;
    line-height: 1.3;
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */

.byk-breadcrumb {
    font-size: 13px;
    color: var(--byk-text-muted);
    margin-bottom: var(--byk-spacing-md);
}

.byk-breadcrumb a {
    color: var(--byk-text-muted);
    text-decoration: none;
}

.byk-breadcrumb a:hover {
    color: var(--byk-primary);
}

.byk-breadcrumb span {
    margin: 0 8px;
}

/* ==========================================================================
   Page Title
   ========================================================================== */

.byk-page-title {
    font-size: 32px;
    margin-bottom: var(--byk-spacing-xl);
}

/* ==========================================================================
   Step Tabs (Top Navigation)
   ========================================================================== */

.byk-step-tabs {
    display: flex;
    margin-bottom: var(--byk-spacing-xl);
    border: 1px solid var(--byk-border);
    border-radius: 0;
}

.byk-step-tab {
    flex: 1;
    padding: var(--byk-spacing-md) var(--byk-spacing-lg);
    background: var(--byk-bg-white);
    border: none;
    border-right: 1px solid var(--byk-border);
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--byk-text-body);
    cursor: pointer;
    transition: all var(--byk-transition);
    text-align: center;
}

.byk-step-tab:last-child {
    border-right: none;
}

.byk-step-tab:hover {
    background: var(--byk-bg-light);
}

.byk-step-tab.active {
    background: var(--byk-secondary);
    color: var(--byk-bg-white);
}

/* Completed step - olive green background (tactical theme) */
.byk-step-tab.completed {
    background: #4a5d23;
    color: var(--byk-bg-white);
}

.byk-step-tab.completed:hover {
    background: #5a7030;
}

/* When completed AND active */
.byk-step-tab.active.completed {
    background: #5a7030;
    color: var(--byk-bg-white);
}

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

.byk-main {
    display: flex;
    gap: var(--byk-spacing-xxl);
    align-items: flex-start;
}

.byk-content-area {
    flex: 1;
    min-width: 0;
}

/* ==========================================================================
   Inner Tabs (Within a Step)
   ========================================================================== */

.byk-inner-tabs {
    display: flex;
    gap: 0;
    margin-bottom: var(--byk-spacing-xl);
    border-bottom: 2px solid var(--byk-border);
}

.byk-inner-tab {
    padding: var(--byk-spacing-md) var(--byk-spacing-lg);
    background: transparent;
    border: none;
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 14px;
    color: var(--byk-text-muted);
    cursor: pointer;
    transition: all var(--byk-transition);
    position: relative;
}

.byk-inner-tab:hover {
    color: var(--byk-text-dark);
}

.byk-inner-tab.active {
    color: var(--byk-text-dark);
}

.byk-inner-tab.active::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--byk-secondary);
}

/* ==========================================================================
   Rail Type Selector (for Mounting Step)
   ========================================================================== */

.byk-rail-selector {
    margin-bottom: var(--byk-spacing-lg);
    padding: var(--byk-spacing-md);
    background: var(--byk-bg-light);
    border: 1px solid var(--byk-border);
}

.byk-rail-selector-title {
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    margin-bottom: var(--byk-spacing-md);
    color: var(--byk-text-dark);
}

.byk-rail-buttons {
    display: flex;
    gap: var(--byk-spacing-sm);
    flex-wrap: wrap;
}

.byk-rail-btn {
    padding: var(--byk-spacing-sm) var(--byk-spacing-md);
    background: var(--byk-bg-white);
    border: 2px solid var(--byk-border);
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-rail-btn:hover {
    border-color: var(--byk-primary);
}

.byk-rail-btn.active {
    background: var(--byk-secondary);
    border-color: var(--byk-secondary);
    color: var(--byk-bg-white);
}

/* ==========================================================================
   Section Header
   ========================================================================== */

.byk-section {
    margin-bottom: var(--byk-spacing-xxl);
}

.byk-section-title {
    font-size: 20px;
    margin-bottom: var(--byk-spacing-lg);
}

/* ==========================================================================
   Products Grid (2-column layout for larger cards)
   ========================================================================== */

.byk-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--byk-spacing-lg);
}

@media (max-width: 768px) {
    .byk-products-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Product Card (Vertical - Image Top, Text Bottom)
   ========================================================================== */

.byk-product-card {
    position: relative;
    background: var(--byk-bg-white);
    border: 2px solid var(--byk-border);
    transition: all var(--byk-transition);
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

/* Hover state - show "click to add" indicator */
.byk-product-card:hover {
    border-color: var(--byk-primary);
    box-shadow: 0 4px 12px rgba(252, 179, 22, 0.2);
}

.byk-product-card:hover .byk-card-action {
    opacity: 1;
    pointer-events: auto;
}

/* Selected state */
.byk-product-card.selected {
    border-color: var(--byk-primary);
    background: rgba(252, 179, 22, 0.08);
}

.byk-product-card.selected .byk-selected-badge {
    display: flex;
}

.byk-product-card.selected .byk-card-action {
    opacity: 1;
    pointer-events: auto;
}

.byk-product-card.selected .byk-card-action-add {
    background: var(--byk-primary);
    color: var(--byk-text-dark);
}


/* Card Action Bar (Click to Add + More Info) */
.byk-card-action {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    opacity: 0;
    pointer-events: none; /* Don't intercept clicks when hidden */
    transition: all var(--byk-transition);
    z-index: 5;
}

.byk-card-action-add {
    flex: 1;
    padding: 10px;
    background: var(--byk-secondary);
    color: var(--byk-bg-white);
    text-align: center;
    border: none;
    cursor: pointer;
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.byk-card-action .byk-more-info-btn {
    padding: 10px 15px;
    background: var(--byk-bg-light);
    border: none;
    border-left: 1px solid var(--byk-border);
    color: var(--byk-text-body);
    font-family: var(--byk-font-heading);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-card-action .byk-more-info-btn:hover {
    background: var(--byk-primary);
    color: var(--byk-text-dark);
}

/* Selected Badge */
.byk-selected-badge {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    width: 28px;
    height: 28px;
    background: var(--byk-primary);
    color: var(--byk-text-dark);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    z-index: 2;
}

/* Out of Stock Badge */
.byk-out-of-stock-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--byk-error);
    color: var(--byk-bg-white);
    font-family: var(--byk-font-heading);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 8px;
    z-index: 2;
}

/* Combo Deal Badge */
.byk-combo-badge {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #2d5a27 0%, #4a7c43 100%);
    color: var(--byk-bg-white);
    font-family: var(--byk-font-heading);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 12px;
    text-align: center;
    z-index: 2;
}

.byk-combo-item {
    border-color: #4a7c43;
}

.byk-combo-item:hover {
    border-color: #2d5a27;
}

/* ==========================================================================
   Combo Deals Section
   ========================================================================== */

.byk-combo-deals-section {
    margin-bottom: var(--byk-spacing-xl);
    padding: var(--byk-spacing-lg);
    background: linear-gradient(135deg, #f8fdf7 0%, #e8f5e6 100%);
    border: 2px solid #4a7c43;
    border-radius: 8px;
}

.byk-combo-deals-title {
    font-family: var(--byk-font-heading);
    font-size: 24px;
    font-weight: 700;
    color: #2d5a27;
    margin: 0 0 var(--byk-spacing-xs);
    text-align: center;
}

.byk-combo-deals-subtitle {
    font-size: 14px;
    color: var(--byk-text-body);
    text-align: center;
    margin: 0 0 var(--byk-spacing-lg);
}

.byk-combo-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--byk-spacing-lg);
}

/* Individual Combo Card */
.byk-combo-card {
    background: var(--byk-bg-white);
    border: 1px solid var(--byk-border);
    border-radius: 8px;
    overflow: hidden;
    transition: all var(--byk-transition);
}

.byk-combo-card:hover {
    border-color: #4a7c43;
    box-shadow: 0 4px 12px rgba(74, 124, 67, 0.15);
}

.byk-combo-card-header {
    background: linear-gradient(135deg, #2d5a27 0%, #4a7c43 100%);
    color: var(--byk-bg-white);
    padding: var(--byk-spacing-sm) var(--byk-spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.byk-combo-card-title {
    font-family: var(--byk-font-heading);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.byk-combo-card-discount {
    font-family: var(--byk-font-heading);
    font-size: 16px;
    font-weight: 800;
    background: var(--byk-primary);
    color: var(--byk-text-dark);
    padding: 4px 10px;
    border-radius: 4px;
}

.byk-combo-card-body {
    padding: var(--byk-spacing-md);
}

.byk-combo-products {
    display: flex;
    align-items: stretch;
    gap: var(--byk-spacing-sm);
}

.byk-combo-product-slot {
    flex: 1;
    min-width: 0;
}

.byk-combo-product-selector {
    position: relative;
    background: var(--byk-bg-light);
    border: 2px dashed var(--byk-border);
    border-radius: 8px;
    padding: var(--byk-spacing-sm);
    cursor: pointer;
    transition: all var(--byk-transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.byk-combo-product-selector:hover {
    border-color: var(--byk-secondary);
    background: var(--byk-bg-white);
}

.byk-combo-product-selector.selected {
    border-style: solid;
    border-color: #4a7c43;
    background: var(--byk-bg-white);
}

.byk-combo-product-selector.selected::after {
    content: "✓";
    position: absolute;
    top: 8px;
    right: 8px;
    width: 20px;
    height: 20px;
    background: #4a7c43;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.byk-combo-slot-label {
    font-family: var(--byk-font-heading);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--byk-text-muted);
    margin-bottom: var(--byk-spacing-xs);
}

.byk-combo-product-preview {
    display: flex;
    align-items: center;
    gap: var(--byk-spacing-sm);
    flex: 1;
}

.byk-combo-product-image {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    background: var(--byk-bg-white);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.byk-combo-product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.byk-combo-product-info {
    flex: 1;
    min-width: 0;
}

.byk-combo-product-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--byk-text-dark);
    margin: 0 0 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.byk-combo-product-price {
    font-size: 12px;
    color: var(--byk-text-body);
}

.byk-combo-empty-slot {
    text-align: center;
    padding: var(--byk-spacing-md) var(--byk-spacing-sm);
}

.byk-combo-empty-icon {
    font-size: 24px;
    color: var(--byk-text-muted);
    margin-bottom: var(--byk-spacing-xs);
}

.byk-combo-empty-text {
    font-size: 12px;
    color: var(--byk-text-muted);
}

.byk-combo-plus {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #4a7c43;
    padding: 0 var(--byk-spacing-xs);
}

.byk-combo-card-footer {
    padding: var(--byk-spacing-md);
    border-top: 1px solid var(--byk-border);
    background: var(--byk-bg-light);
}

.byk-combo-pricing {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--byk-spacing-sm);
}

.byk-combo-original-price {
    font-size: 13px;
    color: var(--byk-text-muted);
}

.byk-combo-original-price span {
    text-decoration: line-through;
}

.byk-combo-final-price {
    font-size: 18px;
    font-weight: 700;
    color: #2d5a27;
}

.byk-combo-savings {
    font-size: 12px;
    color: #4a7c43;
    font-weight: 600;
}

.byk-add-combo-btn {
    width: 100%;
    padding: var(--byk-spacing-sm) var(--byk-spacing-md);
    background: linear-gradient(135deg, #2d5a27 0%, #4a7c43 100%);
    border: none;
    color: var(--byk-bg-white);
    font-family: var(--byk-font-heading);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--byk-transition);
    border-radius: 4px;
}

.byk-add-combo-btn:hover {
    background: linear-gradient(135deg, #234a1e 0%, #3d6b38 100%);
}

.byk-add-combo-btn:disabled {
    background: var(--byk-border);
    cursor: not-allowed;
}

.byk-add-combo-btn.added {
    background: #4a7c43;
}

/* Combo Product Dropdown */
.byk-combo-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--byk-bg-white);
    border: 1px solid var(--byk-border);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 100;
    max-height: 250px;
    overflow-y: auto;
    display: none;
}

.byk-combo-product-selector.open .byk-combo-dropdown {
    display: block;
}

.byk-combo-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--byk-spacing-sm);
    padding: var(--byk-spacing-sm);
    cursor: pointer;
    transition: background var(--byk-transition);
    border-bottom: 1px solid var(--byk-border-light);
}

.byk-combo-dropdown-item:last-child {
    border-bottom: none;
}

.byk-combo-dropdown-item:hover {
    background: var(--byk-bg-light);
}

.byk-combo-dropdown-item.selected {
    background: #e8f5e6;
}

.byk-combo-dropdown-image {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--byk-bg-light);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.byk-combo-dropdown-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.byk-combo-dropdown-info {
    flex: 1;
    min-width: 0;
}

.byk-combo-dropdown-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--byk-text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.byk-combo-dropdown-price {
    font-size: 12px;
    color: var(--byk-text-body);
}

/* ==========================================================================
   Multi-Group Combo Cards (In-Grid)
   ========================================================================== */

.byk-multi-group-combos-container {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--byk-spacing-sm);
    margin-bottom: var(--byk-spacing-md);
    padding-bottom: var(--byk-spacing-md);
    border-bottom: 1px solid var(--byk-border);
    position: relative;
    z-index: 1;
    background: var(--byk-bg-white);
}

.byk-multi-group-card {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    background: linear-gradient(145deg, #fdfbf3 0%, var(--byk-bg-white) 100%);
    border: 2px solid var(--byk-primary);
    border-radius: 12px;
    padding: var(--byk-spacing-md);
    position: relative;
    box-shadow: 0 2px 8px rgba(252, 179, 22, 0.15);
    transition: all var(--byk-transition);
}

.byk-multi-group-card:hover {
    box-shadow: 0 4px 16px rgba(252, 179, 22, 0.25);
    transform: translateY(-2px);
}

.byk-multi-group-card-wide {
    flex: 2;
    min-width: 500px;
    max-width: 700px;
}

.byk-multi-group-card-header {
    margin-bottom: var(--byk-spacing-md);
}

.byk-multi-group-badge {
    display: inline-block;
    background: var(--byk-primary);
    color: var(--byk-text-dark);
    font-size: 10px;
    font-weight: 800;
    font-family: var(--byk-font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 3px;
    margin-bottom: var(--byk-spacing-xs);
}

.byk-multi-group-title-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--byk-spacing-sm);
    margin-bottom: 4px;
}

.byk-multi-group-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--byk-text-dark);
    margin: 0;
}

.byk-multi-group-discount {
    font-size: 14px;
    font-weight: 700;
    color: var(--byk-success);
    white-space: nowrap;
}

.byk-multi-group-requirement {
    display: block;
    font-size: 12px;
    color: var(--byk-text-muted);
    font-style: italic;
    transition: color var(--byk-transition);
}

.byk-multi-group-requirement.byk-requirement-ready {
    color: var(--byk-success);
    font-weight: 500;
}

.byk-multi-group-card-body {
    margin-bottom: var(--byk-spacing-md);
}

.byk-multi-group-slots {
    display: flex;
    align-items: stretch;
    gap: var(--byk-spacing-xs);
    justify-content: center;
}

.byk-multi-group-slot {
    flex: 1;
    min-width: 0;
}

.byk-multi-group-plus {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--byk-text-muted);
    padding: 0 var(--byk-spacing-xs);
}

.byk-multi-group-selector {
    position: relative;
    background: var(--byk-bg-white);
    border: 2px dashed var(--byk-border-dark);
    border-radius: 8px;
    padding: var(--byk-spacing-sm);
    cursor: pointer;
    transition: all var(--byk-transition);
    min-height: 110px;
    display: flex;
    flex-direction: column;
}

.byk-multi-group-selector:hover {
    border-color: var(--byk-primary);
    background: #fffdf7;
}

.byk-multi-group-selector.selected {
    border-style: solid;
    border-color: var(--byk-success);
    background: var(--byk-bg-white);
}

.byk-multi-group-slot-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--byk-text-muted);
    margin-bottom: var(--byk-spacing-xs);
    text-align: center;
}

.byk-multi-group-preview {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.byk-multi-group-empty-slot {
    text-align: center;
}

.byk-multi-group-empty-icon {
    width: 36px;
    height: 36px;
    border: 2px dashed var(--byk-border-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--byk-border-dark);
    margin: 0 auto var(--byk-spacing-xs);
}

.byk-multi-group-empty-text {
    font-size: 11px;
    color: var(--byk-text-muted);
}

.byk-multi-group-product-image {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 4px;
}

.byk-multi-group-product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.byk-multi-group-product-name {
    font-size: 11px;
    font-weight: 500;
    color: var(--byk-text-dark);
    text-align: center;
    line-height: 1.2;
    max-height: 26px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Multi-group Dropdown */
.byk-multi-group-dropdown {
    position: absolute;
    top: 100%;
    left: -2px;
    right: -2px;
    background: var(--byk-bg-white);
    border: 1px solid var(--byk-border);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 100;
    max-height: 200px;
    overflow-y: auto;
    display: none;
}

.byk-multi-group-selector.open .byk-multi-group-dropdown {
    display: block;
}

.byk-multi-group-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--byk-spacing-xs);
    padding: var(--byk-spacing-xs) var(--byk-spacing-sm);
    cursor: pointer;
    transition: background var(--byk-transition);
    border-bottom: 1px solid var(--byk-border);
}

.byk-multi-group-dropdown-item:last-child {
    border-bottom: none;
}

.byk-multi-group-dropdown-item:hover {
    background: var(--byk-bg-light);
}

.byk-multi-group-dropdown-item.selected {
    background: #e8f5e6;
}

.byk-multi-group-dropdown-image {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    background: var(--byk-bg-light);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.byk-multi-group-dropdown-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.byk-multi-group-dropdown-info {
    flex: 1;
    min-width: 0;
}

.byk-multi-group-dropdown-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--byk-text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.byk-multi-group-dropdown-price {
    font-size: 11px;
    color: var(--byk-text-body);
}

/* Multi-group Footer */
.byk-multi-group-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--byk-spacing-md);
    padding-top: var(--byk-spacing-sm);
    border-top: 1px solid var(--byk-border);
}

.byk-multi-group-pricing {
    flex: 1;
}

.byk-multi-group-price-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--byk-text-muted);
    margin-bottom: 2px;
}

.byk-multi-group-price-row span:last-child {
    font-weight: 600;
}

.byk-multi-group-final-row {
    color: var(--byk-text-dark);
    font-weight: 600;
}

.byk-multi-group-final-row .byk-multi-group-final-value {
    font-size: 16px;
    font-weight: 700;
}

.byk-multi-group-savings-row {
    margin-top: 4px;
}

.byk-multi-group-save-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--byk-success);
}

.byk-add-multi-group-btn {
    flex-shrink: 0;
    padding: 10px 16px;
    background: var(--byk-secondary);
    color: var(--byk-bg-white);
    border: none;
    border-radius: 6px;
    font-family: var(--byk-font-heading);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-add-multi-group-btn:hover:not(:disabled) {
    background: var(--byk-secondary-hover);
}

.byk-add-multi-group-btn:disabled {
    background: var(--byk-border-dark);
    cursor: not-allowed;
    opacity: 0.6;
}

.byk-add-multi-group-btn.added {
    background: var(--byk-success);
}

/* ==========================================================================
   Combination Bundle Cards (One card per product combination)
   ========================================================================== */

.byk-combo-bundle-card {
    flex: 0 0 auto;
    width: 100%;
    height: fit-content;
    background: linear-gradient(145deg, #fdfbf3 0%, var(--byk-bg-white) 100%);
    border: 2px solid var(--byk-primary);
    border-radius: 12px;
    padding: var(--byk-spacing-sm) var(--byk-spacing-md);
    position: relative;
    box-shadow: 0 2px 8px rgba(252, 179, 22, 0.15);
    transition: all var(--byk-transition);
}

.byk-combo-bundle-card:hover {
    box-shadow: 0 4px 16px rgba(252, 179, 22, 0.25);
}

.byk-combo-bundle-card.byk-combo-added {
    opacity: 0.7;
    border-color: var(--byk-success);
}

.byk-combo-bundle-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--byk-spacing-xs);
}

.byk-combo-bundle-badge {
    display: inline-block;
    background: var(--byk-primary);
    color: var(--byk-text-dark);
    font-size: 10px;
    font-weight: 800;
    font-family: var(--byk-font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 3px;
}

.byk-combo-bundle-discount {
    font-size: 15px;
    font-weight: 700;
    color: var(--byk-success);
    white-space: nowrap;
}

.byk-combo-bundle-body {
    display: flex;
    justify-content: center;
    padding: var(--byk-spacing-xs) 0;
}

.byk-combo-bundle-products {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--byk-spacing-md);
    flex-wrap: wrap;
}

.byk-combo-bundle-product {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 0 0 auto;
    width: 100px;
}

.byk-combo-bundle-product.byk-combo-bundle-product-other {
    opacity: 0.5;
}

.byk-combo-bundle-product.byk-combo-bundle-product-other.byk-in-kit {
    opacity: 1;
}

.byk-combo-bundle-product.byk-in-kit::after {
    content: '';
    position: absolute;
    top: 2px;
    right: 2px;
    width: 16px;
    height: 16px;
    background: var(--byk-success);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
    background-size: 10px;
    background-position: center;
    background-repeat: no-repeat;
}

.byk-combo-bundle-product {
    position: relative;
}

.byk-combo-bundle-product-image {
    width: 90px;
    height: 90px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--byk-bg-light);
    border: 2px solid var(--byk-border);
    margin-bottom: 6px;
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-combo-bundle-product-image:hover {
    border-color: var(--byk-primary);
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.byk-combo-bundle-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.byk-combo-bundle-product-name {
    font-size: 10px;
    font-weight: 500;
    color: var(--byk-text-body);
    line-height: 1.2;
    max-height: 2.4em;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.byk-combo-bundle-plus {
    font-size: 18px;
    font-weight: 700;
    color: var(--byk-primary);
    flex-shrink: 0;
}

.byk-combo-bundle-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--byk-spacing-md);
    margin-top: var(--byk-spacing-xs);
}

.byk-combo-bundle-pricing {
    display: flex;
    align-items: baseline;
    gap: var(--byk-spacing-xs);
}

.byk-combo-bundle-original {
    font-size: 12px;
    color: var(--byk-text-muted);
    text-decoration: line-through;
}

.byk-combo-bundle-final {
    font-size: 18px;
    font-weight: 700;
    color: var(--byk-text-dark);
}

.byk-add-combo-bundle-btn {
    padding: 10px 20px;
    background: var(--byk-secondary);
    color: var(--byk-bg-white);
    border: none;
    border-radius: 6px;
    font-family: var(--byk-font-heading);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--byk-transition);
    white-space: nowrap;
}

.byk-add-combo-bundle-btn:hover:not(:disabled) {
    background: var(--byk-secondary-hover);
}

.byk-add-combo-bundle-btn:disabled {
    background: var(--byk-success);
    cursor: default;
}

/* Responsive Combination Bundle Cards */
@media (max-width: 768px) {
    .byk-combo-bundle-card {
        flex-direction: column;
        padding: var(--byk-spacing-md);
    }

    .byk-combo-bundle-header {
        flex-direction: row;
        justify-content: space-between;
        width: 100%;
    }

    .byk-combo-bundle-products {
        flex-wrap: wrap;
    }

    .byk-combo-bundle-footer {
        flex-direction: row;
        justify-content: space-between;
        width: 100%;
        align-items: center;
    }

    .byk-add-combo-bundle-btn {
        flex-shrink: 0;
    }
}

/* Responsive Multi-Group Cards */
@media (max-width: 768px) {
    .byk-multi-group-combos-container {
        flex-direction: column;
    }

    .byk-multi-group-card,
    .byk-multi-group-card-wide {
        min-width: 100%;
        max-width: 100%;
    }

    .byk-multi-group-slots {
        flex-wrap: wrap;
    }

    .byk-multi-group-slot {
        min-width: calc(50% - 20px);
    }

    .byk-multi-group-plus {
        order: 10;
        width: 100%;
        padding: var(--byk-spacing-xs) 0;
    }

    .byk-multi-group-card-footer {
        flex-direction: column;
        gap: var(--byk-spacing-sm);
    }

    .byk-add-multi-group-btn {
        width: 100%;
    }
}

/* Responsive Combo Cards */
@media (max-width: 768px) {
    .byk-combo-cards-container {
        grid-template-columns: 1fr;
    }

    .byk-combo-products {
        flex-direction: column;
    }

    .byk-combo-plus {
        transform: rotate(90deg);
        padding: var(--byk-spacing-xs) 0;
    }
}

/* Out of Stock Product Card */
.byk-product-card[data-in-stock="false"] {
    opacity: 0.5;
    cursor: not-allowed;
}

.byk-product-card[data-in-stock="false"]:hover {
    border-color: var(--byk-border);
    box-shadow: none;
}

.byk-product-card[data-in-stock="false"]:hover .byk-product-image img {
    transform: none;
}

.byk-product-card[data-in-stock="false"] .byk-card-action {
    display: none !important;
}

/* Product Image */
.byk-product-image {
    position: relative;
    background: var(--byk-bg-light);
    padding: var(--byk-spacing-md);
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.byk-product-image img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 200px;
    object-fit: contain;
    transition: transform var(--byk-transition);
}

.byk-product-card:hover .byk-product-image img {
    transform: scale(1.03);
}

/* Product Details */
.byk-product-details {
    padding: var(--byk-spacing-md);
    padding-bottom: 50px; /* Make room for action buttons */
}

/* Color Swatches */
.byk-color-swatches {
    display: flex;
    gap: 6px;
    margin-bottom: var(--byk-spacing-sm);
    flex-wrap: wrap;
}

.byk-color-swatch {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-color-swatch:hover,
.byk-color-swatch.active {
    border-color: var(--byk-text-dark);
    transform: scale(1.1);
}

.byk-color-swatch.active {
    box-shadow: 0 0 0 2px var(--byk-bg-white), 0 0 0 4px var(--byk-text-dark);
}

/* Product Name */
.byk-product-name {
    font-family: var(--byk-font-body);
    font-size: 14px;
    font-weight: 400;
    color: var(--byk-text-dark);
    margin: 0 0 var(--byk-spacing-xs);
    line-height: 1.4;
}

/* Product Price */
.byk-product-price {
    font-size: 14px;
    font-weight: 600;
    color: var(--byk-text-dark);
    margin-bottom: var(--byk-spacing-sm);
}

.byk-product-price del {
    color: var(--byk-text-muted);
    font-weight: 400;
    margin-right: 8px;
}


/* ==========================================================================
   View More Button
   ========================================================================== */

.byk-view-more-wrap {
    margin-top: var(--byk-spacing-lg);
}

.byk-view-more-btn {
    display: inline-block;
    padding: var(--byk-spacing-md) var(--byk-spacing-xl);
    background: var(--byk-bg-white);
    border: 1px solid var(--byk-text-dark);
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--byk-text-dark);
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-view-more-btn:hover {
    background: var(--byk-text-dark);
    color: var(--byk-bg-white);
}

/* ==========================================================================
   Sidebar - Kit Summary
   ========================================================================== */

.byk-sidebar {
    width: var(--byk-sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: var(--byk-spacing-lg);
}

.byk-sidebar-inner {
    border: 1px dashed var(--byk-border-dark);
    background: var(--byk-bg-white);
}

/* Kit Preview (Visual) */
.byk-kit-preview {
    padding: var(--byk-spacing-xl);
    text-align: center;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: 1px dashed var(--byk-border-dark);
}

.byk-kit-preview-empty {
    color: var(--byk-text-muted);
    font-size: 14px;
}

.byk-kit-preview-icon {
    width: 120px;
    height: 120px;
    margin-bottom: var(--byk-spacing-md);
    opacity: 0.3;
}

/* Kit Items List */
.byk-kit-items {
    max-height: 400px;
    overflow-y: auto;
}

.byk-kit-item {
    display: flex;
    gap: var(--byk-spacing-md);
    padding: var(--byk-spacing-md);
    border-bottom: 1px solid var(--byk-border);
    align-items: center;
}

.byk-kit-item:last-child {
    border-bottom: none;
}

.byk-kit-item-image {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    background: var(--byk-bg-light);
    overflow: hidden;
}

.byk-kit-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.byk-kit-item-details {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.byk-kit-item-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--byk-text-dark);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.byk-kit-item-variant {
    font-size: 12px;
    color: var(--byk-text-muted);
}

.byk-kit-item-price {
    font-size: 13px;
    font-weight: 600;
    color: var(--byk-text-dark);
}

.byk-kit-item-remove {
    width: 28px;
    height: 28px;
    min-width: 28px;
    min-height: 28px;
    border: 1px solid var(--byk-border-dark);
    border-radius: 4px;
    background: var(--byk-bg-light);
    color: var(--byk-text-muted);
    cursor: pointer;
    font-size: 18px;
    font-weight: 400;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--byk-transition);
    flex-shrink: 0;
    padding: 0;
    margin: 0;
    align-self: center;
    line-height: 1;
}

.byk-kit-item-remove:hover {
    background: var(--byk-error);
    border-color: var(--byk-error);
    color: var(--byk-bg-white);
}

/* Quantity Controls - Button Group Style */
.byk-kit-item-qty {
    display: inline-flex;
    align-items: center;
    gap: 0;
    margin-top: 6px;
    border: 1px solid var(--byk-border-dark);
    border-radius: 4px;
    overflow: hidden;
    background: var(--byk-bg-white);
    width: fit-content;
    flex-shrink: 0;
}

.byk-qty-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--byk-bg-light);
    color: var(--byk-text-dark);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--byk-transition);
    padding: 0;
    margin: 0;
    line-height: 1;
}

.byk-qty-btn:hover {
    background: var(--byk-secondary);
    color: var(--byk-bg-white);
}

.byk-qty-btn:active {
    background: var(--byk-secondary-hover);
}

.byk-qty-value {
    font-size: 14px;
    font-weight: 600;
    min-width: 32px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--byk-text-dark);
    background: var(--byk-bg-white);
    border-left: 1px solid var(--byk-border);
    border-right: 1px solid var(--byk-border);
}

/* Empty Kit */
.byk-empty-kit {
    padding: var(--byk-spacing-xl);
    text-align: center;
    color: var(--byk-text-muted);
}

/* Kit Footer */
.byk-kit-footer {
    padding: var(--byk-spacing-lg);
    background: var(--byk-bg-light);
    border-top: 1px solid var(--byk-border);
}

.byk-kit-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--byk-spacing-md);
    font-size: 15px;
}

.byk-kit-total-label {
    font-weight: 600;
    color: var(--byk-text-dark);
}

.byk-kit-total-value {
    font-weight: 700;
    color: var(--byk-text-dark);
    font-size: 18px;
}

/* Discount Display */
.byk-discount-applied {
    background: #fff3cd;
    padding: var(--byk-spacing-sm) var(--byk-spacing-md);
    margin-bottom: var(--byk-spacing-md);
    font-size: 13px;
    color: #856404;
    border-left: 3px solid var(--byk-primary);
}

/* Add Kit to Cart Button (Sidebar) */
.byk-add-kit-btn {
    display: block;
    width: 100%;
    padding: var(--byk-spacing-md) var(--byk-spacing-lg);
    background: var(--byk-primary);
    border: none;
    font-family: var(--byk-font-heading);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--byk-text-dark);
    cursor: pointer;
    transition: all var(--byk-transition);
    text-align: center;
}

.byk-add-kit-btn:hover {
    background: var(--byk-primary-hover);
}

.byk-add-kit-btn:disabled {
    background: var(--byk-border);
    color: var(--byk-text-muted);
    cursor: not-allowed;
}

/* ==========================================================================
   Navigation Buttons
   ========================================================================== */

.byk-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--byk-spacing-md);
    margin-top: var(--byk-spacing-xxl);
    padding-top: var(--byk-spacing-xl);
    border-top: 1px solid var(--byk-border);
}

.byk-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: var(--byk-spacing-lg) var(--byk-spacing-xxl);
    font-family: var(--byk-font-heading);
    font-weight: 600;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--byk-transition);
    border: none;
    min-height: 56px;
}

.byk-prev-btn {
    background: var(--byk-bg-white);
    color: var(--byk-text-dark);
    border: 1px solid var(--byk-text-dark);
}

.byk-prev-btn:hover {
    background: var(--byk-text-dark);
    color: var(--byk-bg-white);
}

.byk-next-btn {
    background: var(--byk-primary);
    color: var(--byk-text-dark);
    margin-left: auto;
}

.byk-next-btn:hover {
    background: var(--byk-primary-hover);
}

/* ==========================================================================
   Product Modal / Quick View
   ========================================================================== */

.byk-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: var(--byk-spacing-lg);
}

.byk-modal-overlay.active {
    display: flex;
}

.byk-modal {
    background: var(--byk-bg-white);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.byk-modal-close {
    position: absolute;
    top: var(--byk-spacing-md);
    right: var(--byk-spacing-md);
    width: 40px;
    height: 40px;
    background: var(--byk-bg-white);
    border: 1px solid var(--byk-border);
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    z-index: 10;
    transition: all var(--byk-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.byk-modal-close:hover {
    background: var(--byk-bg-light);
    border-color: var(--byk-border-dark);
}

.byk-modal-content {
    display: flex;
    gap: var(--byk-spacing-xl);
}

.byk-modal-gallery {
    flex: 1;
    min-width: 0;
}

.byk-modal-main-image {
    aspect-ratio: 1;
    background: var(--byk-bg-light);
    margin-bottom: var(--byk-spacing-md);
}

.byk-modal-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.byk-modal-thumbnails {
    display: flex;
    gap: var(--byk-spacing-sm);
}

.byk-modal-thumb {
    width: 60px;
    height: 60px;
    border: 1px solid var(--byk-border);
    cursor: pointer;
    opacity: 0.6;
    transition: all var(--byk-transition);
}

.byk-modal-thumb:hover,
.byk-modal-thumb.active {
    opacity: 1;
    border-color: var(--byk-text-dark);
}

.byk-modal-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.byk-modal-details {
    flex: 1;
    padding: var(--byk-spacing-xl);
}

.byk-modal-title {
    font-size: 24px;
    margin-bottom: var(--byk-spacing-sm);
}

.byk-modal-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--byk-text-dark);
    margin-bottom: var(--byk-spacing-lg);
}

.byk-modal-description {
    color: var(--byk-text-body);
    margin-bottom: var(--byk-spacing-lg);
    line-height: 1.7;
}

/* Modal Variations */
.byk-modal-variations {
    margin-bottom: var(--byk-spacing-lg);
}

.byk-variation-label {
    font-weight: 600;
    margin-bottom: var(--byk-spacing-sm);
    font-size: 14px;
}

.byk-modal-swatches {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.byk-modal-swatch {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-modal-swatch:hover,
.byk-modal-swatch.active {
    border-color: var(--byk-text-dark);
}

.byk-modal-swatch.active {
    box-shadow: 0 0 0 2px var(--byk-bg-white), 0 0 0 4px var(--byk-text-dark);
}

/* Modal Add to Kit */
.byk-modal-add-btn {
    display: block;
    width: 100%;
    padding: var(--byk-spacing-md) var(--byk-spacing-lg);
    background: var(--byk-primary);
    border: none;
    font-family: var(--byk-font-heading);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--byk-text-dark);
    cursor: pointer;
    transition: all var(--byk-transition);
}

.byk-modal-add-btn:hover {
    background: var(--byk-primary-hover);
}

.byk-modal-add-btn.added {
    background: var(--byk-success);
    color: var(--byk-bg-white);
}

/* ==========================================================================
   Review Step
   ========================================================================== */

.byk-review-step {
    max-width: 800px;
    margin: 0 auto;
}

.byk-review-section {
    margin-bottom: var(--byk-spacing-xl);
    padding-bottom: var(--byk-spacing-xl);
    border-bottom: 1px solid var(--byk-border);
}

.byk-review-section:last-child {
    border-bottom: none;
}

.byk-review-section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--byk-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--byk-spacing-md);
}

.byk-review-item {
    display: flex;
    gap: var(--byk-spacing-md);
    padding: var(--byk-spacing-md) 0;
    border-bottom: 1px solid var(--byk-border);
    align-items: center;
}

.byk-review-item:last-child {
    border-bottom: none;
}

.byk-review-item-image {
    width: 80px;
    height: 80px;
    background: var(--byk-bg-light);
    flex-shrink: 0;
}

.byk-review-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.byk-review-item-details {
    flex: 1;
}

.byk-review-item-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.byk-review-item-variant {
    font-size: 13px;
    color: var(--byk-text-muted);
}

.byk-review-item-price {
    font-weight: 700;
    font-size: 16px;
}

/* Review Totals */
.byk-review-totals {
    background: var(--byk-bg-light);
    padding: var(--byk-spacing-lg);
    margin-top: var(--byk-spacing-xl);
}

.byk-review-total-row {
    display: flex;
    justify-content: space-between;
    padding: var(--byk-spacing-sm) 0;
}

.byk-review-total-row.total {
    font-size: 18px;
    font-weight: 700;
    border-top: 2px solid var(--byk-border);
    margin-top: var(--byk-spacing-sm);
    padding-top: var(--byk-spacing-md);
}

.byk-review-discount-row {
    color: var(--byk-success);
}

/* Add to Cart Button */
.byk-add-to-cart-btn {
    display: block;
    width: 100%;
    padding: var(--byk-spacing-lg) var(--byk-spacing-xl);
    background: var(--byk-primary);
    border: none;
    font-family: var(--byk-font-heading);
    font-weight: 700;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--byk-text-dark);
    cursor: pointer;
    transition: all var(--byk-transition);
    margin-top: var(--byk-spacing-lg);
}

.byk-add-to-cart-btn:hover {
    background: var(--byk-primary-hover);
}

/* ==========================================================================
   Loading & Messages
   ========================================================================== */

.byk-loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.byk-loading-overlay.active {
    display: flex;
}

.byk-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--byk-border);
    border-top-color: var(--byk-primary);
    border-radius: 50%;
    animation: byk-spin 0.8s linear infinite;
}

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

.byk-loading-text {
    margin-top: var(--byk-spacing-md);
    color: var(--byk-text-body);
}

/* Success Message */
.byk-success-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.95);
    z-index: 10001;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.byk-success-overlay.active {
    display: flex;
}

.byk-success-icon {
    width: 80px;
    height: 80px;
    background: var(--byk-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 40px;
    margin-bottom: var(--byk-spacing-lg);
}

.byk-success-title {
    font-size: 24px;
    margin-bottom: var(--byk-spacing-md);
}

.byk-success-message {
    color: var(--byk-text-body);
    margin-bottom: var(--byk-spacing-xl);
}

.byk-view-cart-btn {
    display: inline-block;
    padding: var(--byk-spacing-md) var(--byk-spacing-xxl);
    background: var(--byk-primary);
    color: var(--byk-text-dark);
    text-decoration: none;
    font-family: var(--byk-font-heading);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--byk-transition);
}

.byk-view-cart-btn:hover {
    background: var(--byk-primary-hover);
    color: var(--byk-text-dark);
}

/* Validation Message */
.byk-validation-message {
    display: none;
    padding: var(--byk-spacing-md);
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    margin-top: var(--byk-spacing-md);
}

.byk-validation-message.active {
    display: block;
}

/* ==========================================================================
   Mobile Floating Button & Modal
   ========================================================================== */

/* Hidden on desktop */
.byk-mobile-kit-button,
.byk-mobile-kit-modal {
    display: none;
}

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

@media (max-width: 1024px) {
    .byk-main {
        flex-direction: column;
    }

    /* Hide desktop sidebar on mobile */
    .byk-sidebar {
        display: none;
    }

    /* MOBILE: Hide the action bar - tapping card directly adds/removes */
    .byk-product-card .byk-card-action {
        display: none !important;
    }

    /* MOBILE: Remove hover effects on product cards */
    .byk-product-card:hover {
        border-color: var(--byk-border);
        box-shadow: none;
    }

    .byk-product-card:hover .byk-product-image img {
        transform: none;
    }

    /* MOBILE: Active state feedback for action buttons */
    .byk-card-action-add:active,
    .byk-more-info-btn:active {
        opacity: 0.7;
    }

    /* MOBILE: Remove hover effects on buttons */
    .byk-nav-btn:hover,
    .byk-next-btn:hover,
    .byk-prev-btn:hover,
    .byk-add-kit-btn:hover,
    .byk-view-more-btn:hover,
    .byk-mobile-kit-button:hover {
        transform: none;
        box-shadow: none;
    }

    /* MOBILE: Active state for buttons (shows on tap) */
    .byk-nav-btn:active,
    .byk-next-btn:active,
    .byk-prev-btn:active,
    .byk-add-kit-btn:active,
    .byk-view-more-btn:active,
    .byk-product-card:active {
        opacity: 0.7;
    }

    /* Mobile Floating Button */
    .byk-mobile-kit-button {
        display: flex;
        align-items: center;
        justify-content: center;
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 100;
        width: 60px;
        height: 60px;
        border-radius: 50%;
        background: var(--byk-primary, #2563eb);
        color: white;
        border: none;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        cursor: pointer;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .byk-mobile-kit-button:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    }

    .byk-mobile-kit-button:active {
        transform: scale(0.95);
    }

    .byk-mobile-kit-button svg {
        width: 24px;
        height: 24px;
    }

    .byk-mobile-kit-count {
        position: absolute;
        top: -5px;
        right: -5px;
        min-width: 22px;
        height: 22px;
        padding: 0 6px;
        border-radius: 11px;
        background: #ef4444;
        color: white;
        font-size: 12px;
        font-weight: 600;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .byk-mobile-kit-count:empty,
    .byk-mobile-kit-count[data-count="0"] {
        display: none;
    }

    /* Mobile Kit Modal */
    .byk-mobile-kit-modal {
        display: none; /* Hidden by default - prevents blocking clicks */
        flex-direction: column;
        position: fixed;
        top: 80px; /* Account for fixed header */
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1000;
        background: white;
    }

    .byk-mobile-kit-modal.open {
        display: flex; /* Only show when open */
    }

    .byk-mobile-kit-modal-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        border-bottom: 1px solid var(--byk-border, #e5e7eb);
        background: var(--byk-bg-secondary, #f9fafb);
    }

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

    .byk-mobile-kit-modal-close {
        width: 36px;
        height: 36px;
        border: none;
        background: transparent;
        font-size: 28px;
        line-height: 1;
        cursor: pointer;
        color: var(--byk-text-muted, #6b7280);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .byk-mobile-kit-modal-body {
        flex: 1;
        overflow-y: auto;
        padding: 16px;
    }

    .byk-mobile-kit-items {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .byk-mobile-kit-item {
        display: flex;
        gap: 12px;
        padding: 12px;
        background: var(--byk-bg-secondary, #f9fafb);
        border-radius: 8px;
    }

    .byk-mobile-kit-item-image {
        width: 60px;
        height: 60px;
        border-radius: 6px;
        overflow: hidden;
        flex-shrink: 0;
    }

    .byk-mobile-kit-item-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .byk-mobile-kit-item-details {
        flex: 1;
        min-width: 0;
    }

    .byk-mobile-kit-item-name {
        font-weight: 500;
        font-size: 14px;
        margin-bottom: 4px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .byk-mobile-kit-item-variant {
        font-size: 12px;
        color: var(--byk-text-muted, #6b7280);
        margin-bottom: 4px;
    }

    .byk-mobile-kit-item-price {
        font-weight: 600;
        color: var(--byk-primary, #2563eb);
    }

    .byk-mobile-kit-item-remove {
        width: 28px;
        height: 28px;
        border: none;
        background: #fee2e2;
        color: #dc2626;
        border-radius: 50%;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        flex-shrink: 0;
        align-self: center;
    }

    .byk-mobile-kit-modal-footer {
        padding: 16px 20px;
        border-top: 1px solid var(--byk-border, #e5e7eb);
        background: white;
    }

    .byk-mobile-discount-applied {
        background: #dcfce7;
        color: #166534;
        padding: 8px 12px;
        border-radius: 6px;
        font-size: 13px;
        margin-bottom: 12px;
        text-align: center;
    }

    .byk-mobile-kit-total {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 12px;
    }

    .byk-mobile-kit-total-label {
        font-size: 14px;
        color: var(--byk-text-muted, #6b7280);
    }

    .byk-mobile-kit-total-value {
        font-size: 20px;
        font-weight: 700;
        color: var(--byk-text, #111827);
    }

    .byk-mobile-add-kit-btn {
        width: 100%;
        padding: 14px 20px;
        background: var(--byk-primary, #2563eb);
        color: white;
        border: none;
        border-radius: 8px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: background 0.2s ease;
    }

    .byk-mobile-add-kit-btn:hover {
        background: var(--byk-primary-hover, #1d4ed8);
    }

    .byk-mobile-add-kit-btn:disabled {
        background: #9ca3af;
        cursor: not-allowed;
    }

    .byk-content-area {
        padding-bottom: 20px;
    }
}

@media (max-width: 768px) {
    .byk-kit-builder {
        padding: var(--byk-spacing-md);
    }

    .byk-page-title {
        font-size: 24px;
    }

    .byk-step-tabs {
        flex-direction: column;
    }

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

    .byk-step-tab:last-child {
        border-bottom: none;
    }

    .byk-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--byk-spacing-md);
    }

    .byk-navigation {
        flex-direction: column;
    }

    .byk-nav-btn {
        width: 100%;
        justify-content: center;
    }

    .byk-next-btn {
        margin-left: 0;
    }

    /* Modal Responsive */
    .byk-modal-content {
        flex-direction: column;
    }

    .byk-modal-details {
        padding: var(--byk-spacing-md);
    }
}

@media (max-width: 480px) {
    .byk-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--byk-spacing-sm);
    }

    .byk-product-name {
        font-size: 13px;
    }

    .byk-product-price {
        font-size: 13px;
    }

    .byk-product-details {
        padding: var(--byk-spacing-sm);
    }
}