/**
 * Mix & Match Bundle - Frontend Styles
 * Professional CSS with Variables and Modern Standards
 * 
 * @version 2.0
 * @package MixMatchBundle
 */

/* =====================================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ===================================================== */

:root {
    /* Dynamic Colors - Set via JavaScript from bundle settings */
    --mmb-primary-color: #4caf50;
    --mmb-accent-color: #45a049;
    --mmb-hover-bg-color: #388e3c;
    --mmb-hover-accent-color: #2e7d32;
    --mmb-button-text-color: #ffffff;
    
    /* Static Colors */
    --mmb-text-primary: #333;
    --mmb-text-secondary: #666;
    --mmb-text-muted: #999;
    --mmb-text-dark: #2a5a2a;
    
    /* Background Colors */
    --mmb-bg-white: #ffffff;
    --mmb-bg-light: #f5f5f5;
    --mmb-bg-lighter: #f9f9f9;
    --mmb-bg-gray: #e8e8e8;
    
    /* Border Colors */
    --mmb-border-light: #eee;
    --mmb-border-normal: #ddd;
    --mmb-border-gray: #e0e0e0;
    --mmb-border-medium: #d0d0d0;
    --mmb-border-dark: #b0b0b0;
    
    /* Spacing */
    --mmb-spacing-xs: 4px;
    --mmb-spacing-sm: 8px;
    --mmb-spacing-md: 12px;
    --mmb-spacing-lg: 16px;
    --mmb-spacing-xl: 20px;
    --mmb-spacing-2xl: 24px;
    --mmb-spacing-3xl: 30px;
    
    /* Border Radius */
    --mmb-radius-sm: 4px;
    --mmb-radius-md: 6px;
    --mmb-radius-lg: 8px;
    --mmb-radius-xl: 12px;
    --mmb-radius-full: 50%;
    
    /* Typography */
    --mmb-font-xs: 12px;
    --mmb-font-sm: 13px;
    --mmb-font-base: 14px;
    --mmb-font-md: 15px;
    --mmb-font-lg: 16px;
    --mmb-font-xl: 18px;
    --mmb-font-2xl: 24px;
    --mmb-font-3xl: 32px;
    
    --mmb-font-normal: 400;
    --mmb-font-medium: 500;
    --mmb-font-semibold: 600;
    --mmb-font-bold: 700;
    --mmb-font-extrabold: 800;
    
    /* Transitions */
    --mmb-transition-fast: 0.2s ease;
    --mmb-transition-base: 0.3s ease;
    --mmb-transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --mmb-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --mmb-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --mmb-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --mmb-shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.2);
    --mmb-shadow-top: 0 -4px 12px rgba(0, 0, 0, 0.15);
    
    /* Z-index Layers */
    --mmb-z-sticky: 999;
    --mmb-z-modal: 999999;
}

/* =====================================================
   LAYOUT - Main Structure
   ===================================================== */

.mmb-bundle-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--mmb-spacing-xl);
}

.mmb-bundle-header {
    text-align: center;
    margin-bottom: var(--mmb-spacing-3xl);
}

.mmb-bundle-header h2 {
    font-size: var(--mmb-font-3xl);
    margin: 0 0 10px 0;
    color: var(--mmb-text-primary);
    font-weight: var(--mmb-font-bold);
}

.mmb-subtitle {
    color: var(--mmb-text-secondary);
    font-size: var(--mmb-font-base);
    margin: 0;
}

.mmb-bundle-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

/* =====================================================
   PRODUCTS SECTION
   ===================================================== */

.mmb-products-section h3 {
    font-size: var(--mmb-font-xl);
    margin-top: 0;
    margin-bottom: var(--mmb-spacing-xs);
    font-weight: var(--mmb-font-semibold);
    color: var(--mmb-text-primary);
}

.mmb-bundle-hint {
    color: var(--mmb-text-secondary);
    font-size: var(--mmb-font-base);
    margin-bottom: var(--mmb-spacing-xl);
}

.mmb-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--mmb-spacing-xl);
    margin-bottom: var(--mmb-spacing-3xl);
}

/* Safari-specific grid fix */
@media not all and (min-resolution:.001dpcm) {
    @supports (-webkit-appearance:none) {
        .mmb-products-grid {
            grid-template-columns: repeat(auto-fill, minmax(max(200px, 100%/5), 1fr));
        }
    }
}

/* =====================================================
   PRODUCT CARDS
   ===================================================== */

.mmb-product-card {
    border: 2px solid var(--mmb-bg-gray);
    border-radius: var(--mmb-radius-xl);
    overflow: hidden;
    transition: all var(--mmb-transition-smooth);
    background: var(--mmb-bg-white);
    position: relative;
}

.mmb-product-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--mmb-shadow-lg);
    border-color: var(--mmb-border-medium);
}

.mmb-product-card.mmb-selected {
    border-color: var(--mmb-primary-color);
    box-shadow: 0 0 0 1px var(--mmb-primary-color);
}

.mmb-product-image {
    width: 100%;
    position: relative;
    overflow: hidden;
    background: var(--mmb-bg-light);
    padding-top: 100%; /* Safari fallback for aspect-ratio */
}

/* Safari support for aspect-ratio */
@supports (aspect-ratio: 1) {
    .mmb-product-image {
        padding-top: 0;
        aspect-ratio: 1;
    }
}

.mmb-product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Fallback for browsers without object-fit */
@supports not (object-fit: cover) {
    .mmb-product-image img {
        max-width: 100%;
        height: auto;
    }
}

.mmb-product-info {
    padding: var(--mmb-spacing-md);
}

.mmb-product-info h4 {
    margin: 0 0 var(--mmb-spacing-sm) 0;
    font-size: var(--mmb-font-base);
    font-weight: var(--mmb-font-semibold);
    color: var(--mmb-text-primary);
    line-height: 1.3;
}

.mmb-product-link {
    color: var(--mmb-text-primary);
    text-decoration: none;
    transition: color var(--mmb-transition-fast);
}

.mmb-product-link:hover {
    color: var(--mmb-primary-color);
    text-decoration: underline;
}

.mmb-product-link:visited {
    color: var(--mmb-text-primary);
}

.mmb-product-price {
    display: block;
    font-size: var(--mmb-font-lg);
    font-weight: var(--mmb-font-bold);
    color: var(--mmb-primary-color);
    margin-bottom: var(--mmb-spacing-md);
}

/* Product Selection Controls */
.mmb-product-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: var(--mmb-font-base);
    gap: var(--mmb-spacing-sm);
}

.mmb-product-checkbox input[type="checkbox"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
    accent-color: var(--mmb-primary-color);
}

.mmb-product-checkbox input[type="checkbox"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mmb-product-checkbox input[type="checkbox"]:disabled + span {
    opacity: 0.5;
}

.mmb-product-checkbox span {
    flex: 1;
}

/* Quantity Input */
.mmb-product-quantity {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: var(--mmb-spacing-sm);
}

/* Quantity Controls Container */
.mmb-quantity-controls {
    display: inline-flex;
    align-items: center;
    gap: 0;
    border: 2px solid var(--mmb-border-normal);
    border-radius: var(--mmb-radius-lg);
    overflow: hidden;
    background: var(--mmb-bg-white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all var(--mmb-transition-fast);
}

.mmb-quantity-controls:hover {
    border-color: var(--mmb-primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Quantity Buttons */
.mmb-qty-btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--mmb-bg-white);
    cursor: pointer;
    transition: all var(--mmb-transition-fast);
    font-size: 20px;
    font-weight: var(--mmb-font-bold);
    color: var(--mmb-primary-color);
    padding: 0;
    line-height: 1;
    position: relative;
}

.mmb-qty-btn:hover:not(:disabled) {
    background: var(--mmb-primary-color);
    color: var(--mmb-button-text-color);
}

.mmb-qty-btn:active:not(:disabled) {
    transform: scale(0.92);
}

.mmb-qty-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background-color: var(--mmb-bg-light);
    color: var(--mmb-text-muted);
}

.mmb-qty-btn span {
    display: block;
    line-height: 1;
    user-select: none;
}

/* Add separator lines */
.mmb-qty-minus {
    border-right: 1px solid var(--mmb-border-light);
}

.mmb-qty-plus {
    border-left: 1px solid var(--mmb-border-light);
}

.mmb-product-qty-input {
    width: 50px;
    padding: 8px 6px;
    border: none !important;
    font-size: 16px;
    font-weight: var(--mmb-font-bold);
    text-align: center;
    transition: all var(--mmb-transition-fast);
    background: var(--mmb-bg-white);
    color: var(--mmb-text-primary);
}

.mmb-product-qty-input:focus {
    outline: none;
    background: var(--mmb-bg-lighter);
}

.mmb-product-qty-input:disabled {
    background-color: var(--mmb-bg-light);
    cursor: not-allowed;
    opacity: 0.5;
    color: var(--mmb-text-muted);
}

/* Mobile-friendly quantity controls */
@media (max-width: 768px) {
    .mmb-quantity-controls {
        border-width: 2px;
    }
    
    .mmb-qty-btn {
        width: 42px;
        height: 42px;
        font-size: 22px;
    }
    
    .mmb-product-qty-input {
        width: 60px;
        font-size: 18px;
        padding: 10px 6px;
    }
}

/* =====================================================
   VARIATION SELECTION
   ===================================================== */

.mmb-variation-select {
    margin-bottom: var(--mmb-spacing-md);
}

.mmb-variation-select label {
    display: block;
    font-size: var(--mmb-font-xs);
    font-weight: var(--mmb-font-medium);
    color: var(--mmb-text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.mmb-variation-dropdown {
    width: 100%;
    padding: var(--mmb-spacing-sm) 10px;
    border: 1px solid var(--mmb-border-normal);
    border-radius: var(--mmb-radius-sm);
    font-size: var(--mmb-font-sm);
    color: var(--mmb-text-primary);
    background-color: var(--mmb-bg-white);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--mmb-spacing-sm) center;
    background-size: 12px;
    appearance: none;
    cursor: pointer;
    transition: all var(--mmb-transition-fast);
}

.mmb-variation-dropdown:hover {
    border-color: var(--mmb-text-muted);
}

.mmb-variation-dropdown:focus {
    outline: none;
    border-color: var(--mmb-primary-color);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--mmb-primary-color) 10%, transparent);
}

.mmb-variation-dropdown:disabled {
    background-color: var(--mmb-bg-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.mmb-variation-dropdown option {
    padding: var(--mmb-spacing-sm);
}

/* =====================================================
   SIDEBAR - Bundle Summary & Tiers
   ===================================================== */

.mmb-bundle-sidebar {
    position: sticky;
    top: var(--mmb-spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--mmb-spacing-xl);
}

/* =====================================================
   DISCOUNT TIERS DISPLAY
   ===================================================== */

.mmb-discount-tiers-simple {
    background: var(--mmb-bg-white);
    border: 1px solid var(--mmb-border-gray);
    border-radius: var(--mmb-radius-lg);
    padding: 18px;
    margin-bottom: var(--mmb-spacing-xl);
}

.mmb-discount-tiers-simple h3 {
    margin: 0 0 14px 0;
    font-size: var(--mmb-font-md);
    font-weight: var(--mmb-font-semibold);
    color: var(--mmb-text-primary);
}

.mmb-tiers-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mmb-tier-item {
    display: flex;
    align-items: center;
    gap: var(--mmb-spacing-md);
    padding: var(--mmb-spacing-md) 14px;
    background: var(--mmb-bg-white);
    border: 2px solid var(--mmb-bg-gray);
    border-radius: var(--mmb-radius-lg);
    transition: all var(--mmb-transition-base);
    opacity: 0.6;
}

.mmb-tier-item.unlocked {
    opacity: 1;
    border-color: var(--mmb-border-medium);
}

.mmb-tier-item.active {
    opacity: 1;
    border-color: var(--mmb-primary-color);
}

/* Checkmark Circle */
.mmb-tier-check {
    width: 32px;
    height: 32px;
    border-radius: var(--mmb-radius-full);
    border: 3px solid var(--mmb-border-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--mmb-transition-base);
    background: var(--mmb-bg-white);
}

.mmb-tier-item.unlocked .mmb-tier-check,
.mmb-tier-item.active .mmb-tier-check {
    border-color: var(--mmb-primary-color);
    background: var(--mmb-primary-color);
    transform: scale(1.05);
}

.mmb-check-icon {
    font-size: var(--mmb-font-xl);
    font-weight: var(--mmb-font-bold);
    color: var(--mmb-button-text-color);
    opacity: 0;
    transition: opacity var(--mmb-transition-base);
}

.mmb-tier-item.unlocked .mmb-check-icon,
.mmb-tier-item.active .mmb-check-icon {
    opacity: 1;
}

/* Tier Info */
.mmb-tier-info {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.mmb-tier-text {
    font-size: var(--mmb-font-base);
    font-weight: var(--mmb-font-medium);
    color: var(--mmb-text-secondary);
}

.mmb-tier-item.unlocked .mmb-tier-text,
.mmb-tier-item.active .mmb-tier-text {
    color: var(--mmb-text-primary);
    font-weight: var(--mmb-font-semibold);
}

.mmb-tier-discount {
    font-size: var(--mmb-font-lg);
    font-weight: var(--mmb-font-bold);
    color: var(--mmb-primary-color);
    padding: var(--mmb-spacing-xs) var(--mmb-spacing-md);
    background: #f0f0f0;
    border-radius: var(--mmb-radius-md);
    white-space: nowrap;
}

.mmb-tier-item.unlocked .mmb-tier-discount,
.mmb-tier-item.active .mmb-tier-discount {
    color: var(--mmb-primary-color);
    background: color-mix(in srgb, var(--mmb-primary-color) 10%, transparent);
    font-weight: var(--mmb-font-extrabold);
}

/* Mobile Only Savings Progress Section (before product grid) */
.mmb-mobile-only-tiers {
    display: none; /* Hidden on desktop */
    margin-bottom: var(--mmb-spacing-xl);
    margin-top: var(--mmb-spacing-lg);
}

.mmb-mobile-only-tiers h3 {
    font-size: var(--mmb-font-xl);
    text-align: center;
    margin-bottom: var(--mmb-spacing-md);
}

/* Mobile: Show tiers before products, hide sidebar tiers */
@media (max-width: 768px) {
    .mmb-mobile-only-tiers {
        display: block; /* Show on mobile */
    }
    
    .mmb-bundle-sidebar .mmb-discount-tiers-simple {
        display: none; /* Hide sidebar tiers on mobile */
    }
}

/* =====================================================
   BUNDLE SUMMARY
   ===================================================== */

.mmb-bundle-summary {
    background: var(--mmb-bg-white);
    border: 2px solid var(--mmb-border-normal);
    border-radius: var(--mmb-radius-lg);
    padding: var(--mmb-spacing-xl);
}

.mmb-bundle-summary h3 {
    margin-top: 0;
    margin-bottom: var(--mmb-spacing-md);
    font-size: var(--mmb-font-lg);
    font-weight: var(--mmb-font-semibold);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--mmb-text-primary);
}

.mmb-item-count {
    font-size: var(--mmb-font-base);
    color: var(--mmb-text-muted);
    font-weight: var(--mmb-font-normal);
}

/* Selected Items List */
.mmb-selected-items {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: var(--mmb-spacing-xl);
    border: 1px solid var(--mmb-border-light);
    border-radius: var(--mmb-radius-sm);
    padding: 10px;
    min-height: 80px;
}

.mmb-bundle-item,
.mmb-selected-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #f0f0f0;
    font-size: var(--mmb-font-base);
}

.mmb-bundle-item:last-child,
.mmb-selected-item:last-child {
    border-bottom: none;
}

.mmb-item-name {
    flex: 1;
    color: var(--mmb-text-primary);
    font-weight: var(--mmb-font-medium);
}

.mmb-item-price {
    color: var(--mmb-primary-color);
    font-weight: var(--mmb-font-semibold);
    white-space: nowrap;
    margin-left: 10px;
}

.mmb-empty-state {
    color: var(--mmb-text-muted);
    font-size: var(--mmb-font-sm);
    margin: 0;
    padding: 10px;
    text-align: center;
}

/* =====================================================
   PRICE BREAKDOWN
   ===================================================== */

.mmb-price-breakdown {
    border-top: 1px solid var(--mmb-border-normal);
    border-bottom: 1px solid var(--mmb-border-normal);
    padding: var(--mmb-spacing-md) 0;
    margin-bottom: var(--mmb-spacing-xl);
}

.mmb-price-row {
    display: flex;
    justify-content: space-between;
    font-size: var(--mmb-font-base);
    margin-bottom: var(--mmb-spacing-sm);
    color: var(--mmb-text-primary);
}

.mmb-price-row:last-child {
    margin-bottom: 0;
}

.mmb-price-row.mmb-total {
    font-weight: var(--mmb-font-bold);
    font-size: var(--mmb-font-lg);
    color: var(--mmb-primary-color);
    padding: 10px 0;
}

.mmb-price,
.mmb-discount {
    font-weight: var(--mmb-font-semibold);
    color: var(--mmb-primary-color);
}

/* =====================================================
   ADD TO CART BUTTON
   Enhanced specificity to prevent theme overrides
   ===================================================== */

.mmb-bundle-summary .mmb-add-to-cart {
    width: 100%;
    padding: var(--mmb-spacing-md);
    font-size: var(--mmb-font-lg);
    font-weight: var(--mmb-font-semibold);
    background: var(--mmb-primary-color);
    border: 2px solid var(--mmb-primary-color);
    border-radius: var(--mmb-radius-lg);
    color: var(--mmb-button-text-color);
    cursor: pointer;
    transition: all var(--mmb-transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.4;
}

.mmb-bundle-summary .mmb-add-to-cart:hover:not(:disabled) {
    background: var(--mmb-hover-bg-color);
    border-color: var(--mmb-hover-accent-color);
    transform: translateY(-1px);
    box-shadow: var(--mmb-shadow-md);
}

.mmb-bundle-summary .mmb-add-to-cart:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mmb-bundle-summary .mmb-add-to-cart:active:not(:disabled) {
    transform: scale(0.98);
}

.mmb-bundle-summary .mmb-add-to-cart.mmb-success {
    background: var(--mmb-primary-color);
}

.mmb-bundle-summary .mmb-add-to-cart.mmb-success:hover {
    background: var(--mmb-primary-color);
}

/* =====================================================
   MOBILE STICKY CART
   ===================================================== */

.mmb-mobile-sticky-cart {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--mmb-bg-white);
    box-shadow: var(--mmb-shadow-top);
    z-index: var(--mmb-z-sticky);
    flex-direction: column;
}

/* Mobile Discount Badge */
.mmb-mobile-discount-badge {
    padding: 10px var(--mmb-spacing-lg);
    background: linear-gradient(135deg, var(--mmb-bg-light) 0%, var(--mmb-bg-gray) 100%);
    text-align: center;
    font-size: var(--mmb-font-sm);
    font-weight: var(--mmb-font-semibold);
    color: var(--mmb-text-secondary);
    border-bottom: 1px solid var(--mmb-border-gray);
    transition: all var(--mmb-transition-base);
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mmb-mobile-discount-badge.active {
    background: linear-gradient(135deg, currentColor 0%, currentColor 100%);
    color: var(--mmb-button-text-color) !important;
    border-bottom-color: currentColor;
    animation: pulse 0.5s ease-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.mmb-mobile-badge-icon {
    margin-right: 6px;
    font-size: var(--mmb-font-lg);
    display: inline-block;
}

.mmb-mobile-badge-text {
    font-size: var(--mmb-font-sm);
    font-weight: var(--mmb-font-bold);
}

/* Mobile Cart Content */
.mmb-mobile-cart-content {
    display: flex;
    align-items: center;
    gap: var(--mmb-spacing-md);
    padding: var(--mmb-spacing-md) var(--mmb-spacing-lg);
}

.mmb-mobile-cart-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--mmb-spacing-xs);
}

.mmb-mobile-cart-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mmb-mobile-sticky-items {
    font-size: var(--mmb-font-base);
    color: var(--mmb-text-secondary);
    font-weight: var(--mmb-font-medium);
}

.mmb-mobile-sticky-total {
    font-size: var(--mmb-font-xl);
    font-weight: var(--mmb-font-bold);
    color: var(--mmb-primary-color);
}

.mmb-mobile-cart-discount {
    font-size: var(--mmb-font-xs);
    color: var(--mmb-primary-color);
}

.mmb-mobile-discount-text {
    font-weight: var(--mmb-font-medium);
}

.mmb-mobile-discount-amount {
    font-weight: var(--mmb-font-bold);
}

/* Mobile Add to Cart Button */
.mmb-mobile-sticky-cart .mmb-mobile-add-to-cart {
    flex-shrink: 0;
    padding: var(--mmb-spacing-md) var(--mmb-spacing-2xl);
    font-size: var(--mmb-font-base);
    font-weight: var(--mmb-font-semibold);
    background: var(--mmb-primary-color);
    border: 2px solid var(--mmb-primary-color);
    border-radius: var(--mmb-radius-md);
    color: var(--mmb-button-text-color);
    cursor: pointer;
    transition: all var(--mmb-transition-base);
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mmb-mobile-sticky-cart .mmb-mobile-add-to-cart:hover:not(:disabled) {
    background: var(--mmb-hover-bg-color);
    border-color: var(--mmb-hover-accent-color);
}

.mmb-mobile-sticky-cart .mmb-mobile-add-to-cart:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mmb-mobile-sticky-cart .mmb-mobile-add-to-cart.mmb-success {
    background: var(--mmb-primary-color);
}

/* =====================================================
   DIALOG / MODAL (SweetAlert Style)
   ===================================================== */

.mmb-dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--mmb-z-modal);
    opacity: 0;
    animation: mmb-fadeIn var(--mmb-transition-base) forwards;
}

@keyframes mmb-fadeIn {
    to { opacity: 1; }
}

@keyframes mmb-fadeOut {
    to { opacity: 0; }
}

@keyframes mmb-slideIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.mmb-dialog {
    background: var(--mmb-bg-white);
    border-radius: var(--mmb-radius-xl);
    box-shadow: var(--mmb-shadow-xl);
    max-width: 400px;
    width: 90%;
    padding: var(--mmb-spacing-3xl);
    text-align: center;
    animation: mmb-slideIn var(--mmb-transition-base) forwards;
}

.mmb-dialog-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--mmb-spacing-xl);
    border-radius: var(--mmb-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}

.mmb-dialog-icon.success {
    background: #d4edda;
    color: #155724;
}

.mmb-dialog-icon.error {
    background: #f8d7da;
    color: #721c24;
}

.mmb-dialog-icon.warning {
    background: #fff3cd;
    color: #856404;
}

.mmb-dialog-icon.info {
    background: #d1ecf1;
    color: #0c5460;
}

.mmb-dialog h3 {
    margin: 0 0 10px 0;
    font-size: var(--mmb-font-2xl);
    color: var(--mmb-text-primary);
    font-weight: var(--mmb-font-semibold);
}

.mmb-dialog p {
    margin: 0 0 25px 0;
    color: var(--mmb-text-secondary);
    font-size: var(--mmb-font-lg);
    line-height: 1.5;
}

.mmb-dialog-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.mmb-dialog-button {
    padding: var(--mmb-spacing-md) var(--mmb-spacing-3xl);
    border: none;
    border-radius: var(--mmb-radius-md);
    font-size: var(--mmb-font-lg);
    font-weight: var(--mmb-font-semibold);
    cursor: pointer;
    transition: all var(--mmb-transition-fast);
}

.mmb-dialog-button.primary {
    background: var(--mmb-primary-color);
    color: var(--mmb-button-text-color);
}

.mmb-dialog-button.primary:hover {
    background: var(--mmb-hover-bg-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--mmb-primary-color) 30%, transparent);
}

.mmb-dialog-button.secondary {
    background: var(--mmb-border-gray);
    color: var(--mmb-text-primary);
}

.mmb-dialog-button.secondary:hover {
    background: var(--mmb-border-medium);
}

.mmb-dialog-button:active {
    transform: translateY(0);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

@media (max-width: 768px) {
    .mmb-bundle-content {
        grid-template-columns: 1fr;
        padding-bottom: 90px;
    }
    
    .mmb-products-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    /* Safari iOS specific fix for grid */
    @supports (-webkit-touch-callout: none) {
        .mmb-products-grid {
            display: -webkit-box;
            display: flex;
            -webkit-flex-wrap: wrap;
            flex-wrap: wrap;
            gap: var(--mmb-spacing-lg);
        }
        
        .mmb-product-card {
            -webkit-box-flex: 1;
            flex: 1 1 calc(33.333% - var(--mmb-spacing-lg));
            min-width: 150px;
            max-width: calc(33.333% - var(--mmb-spacing-lg));
        }
    }
    
    .mmb-bundle-sidebar {
        position: static;
    }
    
    .mmb-mobile-sticky-cart {
        display: flex;
        display: -webkit-flex;
    }
    
    .mmb-bundle-summary {
        display: none;
    }
    
    .mmb-bundle-wrapper {
        padding-bottom: 100px;
    }
}

@media (max-width: 600px) {
    .mmb-bundle-header h2 {
        font-size: var(--mmb-font-2xl);
    }
    
    .mmb-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    /* Safari iOS specific 2-column fix */
    @supports (-webkit-touch-callout: none) {
        .mmb-products-grid {
            display: -webkit-box;
            display: flex;
            -webkit-flex-wrap: wrap;
            flex-wrap: wrap;
            gap: 12px;
        }
        
        .mmb-product-card {
            -webkit-box-flex: 0;
            flex: 0 0 calc(50% - 6px);
            width: calc(50% - 6px);
            max-width: calc(50% - 6px);
        }
    }
    
    .mmb-product-card {
        min-width: 0;
        max-width: 100%;
    }
    
    .mmb-product-image {
        padding: 8px;
        position: relative;
        width: 100%;
        padding-top: calc(100% + 16px); /* Safari fallback: 100% + 8px top + 8px bottom padding */
        display: block;
        overflow: hidden;
    }
    
    /* Modern browsers with aspect-ratio support */
    @supports (aspect-ratio: 1 / 1) {
        .mmb-product-image {
            padding-top: 0;
            aspect-ratio: 1 / 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .mmb-product-image img {
            position: static;
        }
    }
    
    .mmb-product-image img {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: calc(100% - 16px);
        height: calc(100% - 16px);
        object-fit: contain;
        max-width: calc(100% - 16px);
        max-height: calc(100% - 16px);
    }
    
    .mmb-product-info {
        padding: 10px;
    }
    
    .mmb-product-info h4 {
        font-size: var(--mmb-font-sm);
        line-height: 1.3;
        margin-bottom: 6px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        max-height: calc(1.3em * 2); /* Fallback for Safari */
        word-wrap: break-word;
    }
    
    /* Modern browsers with line-clamp support */
    @supports (line-clamp: 2) {
        .mmb-product-info h4 {
            line-clamp: 2;
        }
    }
    
    .mmb-product-price {
        font-size: var(--mmb-font-sm);
        margin-bottom: 8px;
    }
    
    .mmb-variation-dropdown {
        font-size: var(--mmb-font-xs);
        padding: 6px 8px;
    }
    
    .mmb-product-quantity label {
        font-size: var(--mmb-font-xs);
    }
}

/* Extra small screens - better single column */
@media (max-width: 400px) {
    .mmb-products-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .mmb-product-card {
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-orient: horizontal;
        -webkit-box-direction: normal;
        -webkit-flex-direction: row;
        flex-direction: row;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
        gap: 12px;
    }
    
    .mmb-product-image {
        -webkit-box-flex: 0;
        -webkit-flex: 0 0 100px;
        flex: 0 0 100px;
        width: 100px;
        height: 100px;
        padding: 0;
        padding-top: 0 !important;
    }
    
    .mmb-product-image img {
        position: static;
        transform: none;
        width: 100%;
        height: 100%;
    }
    
    .mmb-product-info {
        -webkit-box-flex: 1;
        -webkit-flex: 1;
        flex: 1;
        min-width: 0;
    }
}

/* =====================================================
   UTILITY CLASSES
   ===================================================== */

/* Smooth scroll behavior */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Focus visible for accessibility */
.mmb-bundle-wrapper *:focus-visible {
    outline: 2px solid var(--mmb-primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .mmb-mobile-sticky-cart,
    .mmb-dialog-overlay {
        display: none !important;
    }
}

/* =====================================================
   Discounted price helpers (sidecart + checkout)
   ===================================================== */
.mmb-original-price {
    text-decoration: line-through;
    opacity: 0.6;
    margin-right: 6px;
    display: inline-block;
}

.mmb-discounted-price {
    color: #4caf50;
    font-weight: 600;
    display: inline-block;
}