/**
 * Modern Product Listing Page Styles
 * HBX-inspired minimal design with Avenue Metro branding
 * Modular, maintainable, and theme-ready
 */

/* ========================================
   CSS VARIABLES - Easy Theming
   ======================================== */
:root {
    /* Brand Colors */
    --am-primary: #b50224;
    --am-primary-dark: #8a0119;
    --am-primary-light: #e6002e;
    
    /* Neutral Palette */
    --am-black: #1a1a1a;
    --am-gray-900: #2d2d2d;
    --am-gray-800: #3a3a3a;
    --am-gray-700: #4a4a4a;
    --am-gray-600: #6b6b6b;
    --am-gray-400: #9b9b9b;
    --am-gray-300: #d4d4d4;
    --am-gray-200: #e5e5e5;
    --am-gray-100: #f5f5f5;
    --am-white: #ffffff;
    
    /* Semantic Colors */
    --am-success: #28a745;
    --am-warning: #ffc107;
    --am-danger: #dc3545;
    --am-info: #17a2b8;
    
    /* Typography */
    --am-font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --am-font-heading: "Helvetica Neue", Helvetica, Arial, sans-serif;
    
    /* Spacing Scale */
    --am-space-xs: 4px;
    --am-space-sm: 8px;
    --am-space-md: 16px;
    --am-space-lg: 24px;
    --am-space-xl: 32px;
    --am-space-2xl: 48px;
    --am-space-3xl: 64px;
    
    /* Border Radius */
    --am-radius-sm: 4px;
    --am-radius-md: 8px;
    --am-radius-lg: 12px;
    
    /* Shadows */
    --am-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --am-shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --am-shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --am-shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    
    /* Transitions */
    --am-transition-fast: 150ms ease;
    --am-transition-base: 250ms ease;
    --am-transition-slow: 350ms ease;
    
    /* Z-index Scale */
    --am-z-dropdown: 1000;
    --am-z-sticky: 1020;
    --am-z-fixed: 1030;
    --am-z-modal-backdrop: 1040;
    --am-z-modal: 1050;
    --am-z-popover: 1060;
    --am-z-tooltip: 1070;
}

/* ========================================
   COLLECTION PAGE LAYOUT
   ======================================== */

/* Main Container */
.plp-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0;
}

/* Collection Navigation Bar */
.plp-nav {
    background: var(--am-white);
    border-bottom: 2px solid var(--am-gray-200);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: var(--am-z-sticky);
}

.plp-nav__container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--am-space-2xl);
    padding: 0 var(--am-space-xl);
}

.plp-nav__item {
    position: relative;
    padding: var(--am-space-lg) 0;
}

.plp-nav__link {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--am-black);
    text-decoration: none;
    transition: color var(--am-transition-base);
    cursor: pointer;
    display: block;
    padding: var(--am-space-sm) var(--am-space-md);
}

.plp-nav__link:hover {
    color: var(--am-primary);
}

.plp-nav__item.active .plp-nav__link {
    /* Shop request: keep active tab black + no underline */
    color: var(--am-black);
    border-bottom: none;
}

/* Active tab should still highlight on hover/focus */
.plp-nav__item.active .plp-nav__link:hover,
.plp-nav__item.active .plp-nav__link:focus-visible {
    color: var(--am-primary);
}

/* Dropdown Submenu */
.plp-nav__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--am-white);
    border: 1px solid var(--am-gray-200);
    border-radius: var(--am-radius-md);
    box-shadow: var(--am-shadow-lg);
    min-width: 200px;
    padding: var(--am-space-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--am-transition-base);
    z-index: var(--am-z-dropdown);
}

.plp-nav__item:hover .plp-nav__dropdown {
    opacity: 1;
    visibility: visible;
}

.plp-nav__dropdown-item {
    display: block;
    padding: var(--am-space-sm) var(--am-space-md);
    color: var(--am-gray-700);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--am-transition-fast);
    border-radius: var(--am-radius-sm);
}

.plp-nav__dropdown-item:hover {
    background: var(--am-gray-100);
    color: var(--am-primary);
    transform: translateX(4px);
}

/* Toolbar (Filters Toggle + Sort) */
.plp-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--am-space-lg) var(--am-space-xl);
    background: var(--am-white);
    border-bottom: 1px solid var(--am-gray-200);
    position: sticky;
    top: 0;
    z-index: var(--am-z-sticky);
}

.plp-toolbar__left {
    display: flex;
    gap: var(--am-space-md);
    align-items: center;
}

.plp-toolbar__right {
    display: flex;
    gap: var(--am-space-md);
    align-items: center;
}

.plp-results-count {
    font-size: 14px;
    color: var(--am-gray-600);
}

/* Filter Toggle Button */
.plp-filter-toggle {
    display: flex;
    align-items: center;
    gap: var(--am-space-sm);
    padding: var(--am-space-sm) var(--am-space-md);
    background: var(--am-white);
    border: 1px solid var(--am-gray-300);
    border-radius: var(--am-radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--am-transition-base);
}

.plp-filter-toggle:hover {
    background: var(--am-gray-100);
    border-color: var(--am-gray-400);
}

.plp-filter-toggle.active {
    background: var(--am-black);
    color: var(--am-white);
    border-color: var(--am-black);
}

/* Sort Dropdown */
.plp-sort {
    position: relative;
}

.plp-sort__select {
    padding: var(--am-space-sm) var(--am-space-lg) var(--am-space-sm) var(--am-space-md);
    background: var(--am-white);
    border: 1px solid var(--am-gray-300);
    border-radius: var(--am-radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    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='%236b6b6b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: all var(--am-transition-base);
}

.plp-sort__select:hover {
    border-color: var(--am-gray-400);
}

.plp-sort__select:focus {
    outline: none;
    border-color: var(--am-primary);
    box-shadow: 0 0 0 3px rgba(181, 2, 36, 0.1);
}

/* Content Wrapper */
.plp-content {
    display: flex;
    gap: 0;
    position: relative;
}

/* ========================================
   FILTER SIDEBAR
   ======================================== */

.plp-filters {
    width: 280px;
    background: var(--am-white);
    border-right: 1px solid var(--am-gray-200);
    padding: var(--am-space-xl) var(--am-space-lg);
    position: sticky;
    top: 73px; /* Below toolbar */
    height: calc(100vh - 73px);
    overflow-y: auto;
    transition: transform var(--am-transition-base), opacity var(--am-transition-base);
}

.plp-filters.hidden {
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
}

.plp-filters__title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 var(--am-space-lg) 0;
    color: var(--am-black);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Filter Group */
.plp-filter-group {
    margin-bottom: var(--am-space-xl);
    padding-bottom: var(--am-space-xl);
    border-bottom: 1px solid var(--am-gray-200);
}

.plp-filter-group:last-child {
    border-bottom: none;
}

.plp-filter-group__title {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 var(--am-space-md) 0;
    color: var(--am-gray-900);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.plp-filter-group__title::after {
    content: '−';
    font-size: 20px;
    transition: transform var(--am-transition-fast);
}

.plp-filter-group.collapsed .plp-filter-group__title::after {
    content: '+';
}

.plp-filter-group__options {
    display: block;
    animation: slideDown var(--am-transition-base);
}

.plp-filter-group.collapsed .plp-filter-group__options {
    display: none;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Checkbox Filter Option */
.plp-filter-option {
    display: flex;
    align-items: center;
    gap: var(--am-space-sm);
    margin-bottom: var(--am-space-sm);
    cursor: pointer;
    transition: color var(--am-transition-fast);
}

.plp-filter-option:hover {
    color: var(--am-primary);
}

.plp-filter-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border: 2px solid var(--am-gray-300);
    border-radius: var(--am-radius-sm);
    cursor: pointer;
    accent-color: var(--am-primary);
}

.plp-filter-option label {
    font-size: 14px;
    color: var(--am-gray-700);
    cursor: pointer;
    flex: 1;
    display: flex;
    justify-content: space-between;
}

.plp-filter-option__count {
    color: var(--am-gray-400);
    font-size: 13px;
}

/* Price Range Slider */
.plp-price-range {
    padding: var(--am-space-md) 0;
}

.plp-price-inputs {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--am-space-sm);
    align-items: center;
    margin-bottom: var(--am-space-md);
}

.plp-price-input {
    position: relative;
}

.plp-price-input input {
    width: 100%;
    padding: var(--am-space-sm) var(--am-space-sm) var(--am-space-sm) var(--am-space-lg);
    border: 1px solid var(--am-gray-300);
    border-radius: var(--am-radius-sm);
    font-size: 14px;
}

.plp-price-input::before {
    content: '$';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--am-gray-600);
    font-size: 14px;
}

.plp-price-divider {
    color: var(--am-gray-400);
}

/* Color Swatches */
.plp-color-swatches {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    gap: var(--am-space-sm);
}

.plp-color-swatch {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--am-gray-300);
    cursor: pointer;
    transition: all var(--am-transition-fast);
    position: relative;
}

.plp-color-swatch:hover {
    transform: scale(1.1);
    box-shadow: var(--am-shadow-md);
}

.plp-color-swatch.selected {
    border-color: var(--am-primary);
    box-shadow: 0 0 0 3px rgba(181, 2, 36, 0.2);
}

.plp-color-swatch.selected::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--am-white);
    font-size: 16px;
    font-weight: bold;
    text-shadow: 0 0 2px rgba(0,0,0,0.5);
}

/* Size Pills */
.plp-size-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--am-space-sm);
}

.plp-size-pill {
    padding: var(--am-space-sm) var(--am-space-md);
    border: 1px solid var(--am-gray-300);
    border-radius: var(--am-radius-md);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--am-transition-fast);
    background: var(--am-white);
    color: var(--am-gray-700);
}

.plp-size-pill:hover {
    border-color: var(--am-gray-400);
    background: var(--am-gray-100);
}

.plp-size-pill.selected {
    background: var(--am-black);
    color: var(--am-white);
    border-color: var(--am-black);
}

/* Filter Actions */
.plp-filter-actions {
    display: flex;
    gap: var(--am-space-sm);
    margin-top: var(--am-space-xl);
}

.plp-filter-btn {
    flex: 1;
    padding: var(--am-space-md);
    border: none;
    border-radius: var(--am-radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--am-transition-base);
}

.plp-filter-btn--apply {
    background: var(--am-primary);
    color: var(--am-white);
}

.plp-filter-btn--apply:hover {
    background: var(--am-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--am-shadow-md);
}

.plp-filter-btn--clear {
    background: var(--am-white);
    color: var(--am-gray-700);
    border: 1px solid var(--am-gray-300);
}

.plp-filter-btn--clear:hover {
    background: var(--am-gray-100);
}

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

.plp-featured {
    padding: var(--am-space-2xl) var(--am-space-xl);
    background: var(--am-white);
}

.plp-featured__grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--am-space-xl);
}

/* ========================================
   PROMOTIONAL BANNERS
   ======================================== */

.plp-promo {
    padding: var(--am-space-3xl) var(--am-space-xl);
    background: var(--am-gray-100);
}

.plp-promo__grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--am-space-lg);
}

.plp-promo__item {
    position: relative;
    overflow: hidden;
    border-radius: var(--am-radius-lg);
    box-shadow: var(--am-shadow-md);
    transition: all var(--am-transition-base);
    cursor: pointer;
}

.plp-promo__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--am-shadow-xl);
}

.plp-promo__image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--am-transition-slow);
}

.plp-promo__item:hover .plp-promo__image {
    transform: scale(1.05);
}

/* ========================================
   PRODUCT GRID
   ======================================== */

.plp-products {
    flex: 1;
    padding: var(--am-space-xl);
    transition: padding var(--am-transition-base);
}

.plp-filters.hidden + .plp-products {
    padding-left: var(--am-space-3xl);
}

.plp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--am-space-xl);
}

/* ========================================
   PAGINATION
   ======================================== */

.plp-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--am-space-sm);
    padding: var(--am-space-3xl) var(--am-space-xl);
    background: var(--am-white);
}

.plp-pagination__btn {
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--am-white);
    border: 1px solid var(--am-gray-300);
    border-radius: var(--am-radius-sm);
    color: var(--am-gray-700);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--am-transition-base);
    text-decoration: none;
}

.plp-pagination__btn:hover {
    background: var(--am-gray-100);
    border-color: var(--am-gray-400);
}

.plp-pagination__btn.active {
    background: var(--am-primary);
    color: var(--am-white);
    border-color: var(--am-primary);
}

.plp-pagination__btn--disabled,
.plp-pagination__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.plp-pagination__btn:disabled:hover {
    background: var(--am-white);
    border-color: var(--am-gray-300);
}

.plp-pagination__ellipsis {
    min-width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--am-gray-600);
    font-size: 14px;
    font-weight: 600;
    padding: 0 var(--am-space-sm);
}

/* ========================================
   PRODUCT CARD (HBX-Inspired)
   ======================================== */

.plp-card {
    position: relative;
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--am-white);
    transition: transform var(--am-transition-base), box-shadow var(--am-transition-base);
}

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

/* Card Image Container */
.plp-card__image-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 133.33%; /* 3:4 aspect ratio */
    overflow: hidden;
    background: var(--am-gray-100);
}

.plp-card__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity var(--am-transition-base);
}

.plp-card__image--primary {
    z-index: 2;
}

.plp-card__image--hover {
    z-index: 1;
    opacity: 0;
}

.plp-card:hover .plp-card__image--primary {
    opacity: 0;
}

.plp-card:hover .plp-card__image--hover {
    opacity: 1;
}

/* Card Badges */
.plp-card__badges {
    position: absolute;
    top: var(--am-space-md);
    left: var(--am-space-md);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: var(--am-space-xs);
}

.plp-card__badge {
    padding: var(--am-space-xs) var(--am-space-sm);
    background: var(--am-white);
    color: var(--am-black);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--am-radius-sm);
    box-shadow: var(--am-shadow-sm);
}

.plp-card__badge--sale {
    background: var(--am-primary);
    color: var(--am-white);
}

.plp-card__badge--sold-out {
    background: var(--am-gray-700);
    color: var(--am-white);
}

/* Quick Actions (Show on Hover) */
.plp-card__actions {
    position: absolute;
    bottom: var(--am-space-md);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    opacity: 0;
    z-index: 10;
    display: flex;
    gap: var(--am-space-sm);
    transition: all var(--am-transition-base);
    pointer-events: none;
}

.plp-card:hover .plp-card__actions {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.plp-card__action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--am-white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--am-shadow-md);
    transition: all var(--am-transition-fast);
}

.plp-card__action-btn:hover {
    background: var(--am-primary);
    color: var(--am-white);
    transform: scale(1.1);
}

/* Card Info */
.plp-card__info {
    padding: var(--am-space-md) 0;
}

.plp-card__brand {
    font-size: 12px;
    color: var(--am-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 var(--am-space-xs) 0;
}

.plp-card__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--am-black);
    margin: 0 0 var(--am-space-sm) 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.plp-card__pricing {
    display: flex;
    align-items: center;
    gap: var(--am-space-sm);
}

.plp-card__price {
    font-size: 16px;
    font-weight: 700;
    color: var(--am-black);
}

.plp-card__compare-price {
    font-size: 14px;
    color: var(--am-gray-400);
    text-decoration: line-through;
}

.plp-card__shipping {
    font-size: 12px;
    color: var(--am-gray-600);
    margin-top: var(--am-space-xs);
}

/* Empty card slot (for pagination when less than 20 products) */
.plp-card--empty {
    visibility: hidden;
    pointer-events: none;
    /* Maintains grid layout spacing */
}

/* ========================================
   LOADING STATES
   ======================================== */

.plp-skeleton {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.plp-skeleton__image {
    width: 100%;
    padding-bottom: 133.33%;
    background: var(--am-gray-200);
    border-radius: var(--am-radius-sm);
}

.plp-skeleton__title {
    height: 16px;
    background: var(--am-gray-200);
    border-radius: var(--am-radius-sm);
    margin: var(--am-space-md) 0 var(--am-space-sm) 0;
}

.plp-skeleton__price {
    height: 14px;
    width: 60%;
    background: var(--am-gray-200);
    border-radius: var(--am-radius-sm);
}

/* ========================================
   EMPTY STATE
   ======================================== */

.plp-empty {
    text-align: center;
    padding: var(--am-space-3xl);
    color: var(--am-gray-600);
}

.plp-empty__icon {
    font-size: 64px;
    margin-bottom: var(--am-space-lg);
    opacity: 0.5;
}

.plp-empty__title {
    font-size: 24px;
    font-weight: 700;
    color: var(--am-gray-900);
    margin: 0 0 var(--am-space-sm) 0;
}

.plp-empty__text {
    font-size: 16px;
    margin: 0 0 var(--am-space-lg) 0;
}

.plp-empty__btn {
    padding: var(--am-space-md) var(--am-space-xl);
    background: var(--am-primary);
    color: var(--am-white);
    border: none;
    border-radius: var(--am-radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--am-transition-base);
}

.plp-empty__btn:hover {
    background: var(--am-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--am-shadow-lg);
}

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

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    .plp-nav__container {
        gap: var(--am-space-lg);
    }
    
    .plp-featured__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .plp-promo__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .plp-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--am-space-lg);
    }
    
    .plp-filters {
        width: 240px;
    }
}

/* Mobile (< 768px) */
@media (max-width: 768px) {
    .plp-nav__container {
        gap: var(--am-space-sm);
        flex-wrap: wrap;
        padding: var(--am-space-sm) var(--am-space-md);
    }
    
    .plp-nav__link {
        font-size: 12px;
        padding: var(--am-space-xs) var(--am-space-sm);
    }
    
    .plp-featured {
        padding: var(--am-space-lg) var(--am-space-md);
    }
    
    .plp-featured__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--am-space-md);
    }
    
    .plp-promo {
        padding: var(--am-space-xl) var(--am-space-md);
    }
    
    .plp-promo__grid {
        grid-template-columns: 1fr;
        gap: var(--am-space-md);
    }
    
    .plp-toolbar {
        padding: var(--am-space-md);
    }
    
    .plp-toolbar__left,
    .plp-toolbar__right {
        gap: var(--am-space-sm);
    }
    
    .plp-results-count {
        display: none;
    }
    
    /* Mobile Filter Drawer */
    .plp-filters {
        position: fixed;
        top: 0;
        left: 0;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        z-index: var(--am-z-modal);
        transform: translateX(-100%);
        box-shadow: var(--am-shadow-xl);
    }
    
    .plp-filters.visible {
        transform: translateX(0);
    }
    
    .plp-filters-backdrop {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--am-z-modal) - 1);
    }
    
    .plp-filters-backdrop.visible {
        display: block;
    }
    
    .plp-products {
        padding: var(--am-space-lg) var(--am-space-md);
    }
    
    .plp-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--am-space-md);
    }
    
    .plp-card__actions {
        display: none; /* Hide quick actions on mobile */
    }
}

/* Small Mobile (< 480px) */
@media (max-width: 480px) {
    .plp-featured__grid {
        grid-template-columns: 1fr;
    }
    
    .plp-grid {
        grid-template-columns: 1fr;
        gap: var(--am-space-lg);
    }
    
    .plp-card__image-wrapper {
        padding-bottom: 125%; /* Slightly taller on mobile */
    }
    
    .plp-pagination {
        padding: var(--am-space-xl) var(--am-space-md);
    }
}