/* ========================================
   CSS Variables
   ======================================== */
:root {
    --primary-bg: #ffffff;
    --secondary-bg: #f7f7f7;
    --accent-yellow: #f5a623;
    --accent-yellow-light: #ffd93d;
    --accent-yellow-dark: #e59510;
    --accent-dark: #1a1a1a;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --text-muted: #888888;
    --card-bg: #ffffff;
    --border-color: #e5e5e5;
    --border-light: #f0f0f0;
    --success: #22c55e;
    --error: #ef4444;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s ease;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.15);
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* ========================================
   Cart Sidebar - Premium Design
   ======================================== */
.cart-sidebar {
    position: fixed;
    inset: 0;
    z-index: 2000;
    visibility: hidden;
}

.cart-sidebar.open {
    visibility: visible;
}

.cart-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.cart-sidebar.open .cart-overlay {
    opacity: 1;
    pointer-events: auto;
}

.cart-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 420px;
    height: 100%;
    background: var(--primary-bg);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 50px rgba(0, 0, 0, 0.2);
}

.cart-sidebar.open .cart-panel {
    transform: translateX(0);
}

.cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
}

.cart-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.cart-header-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-yellow);
}

.cart-title {
    font-family: 'Bebas Neue', Impact, sans-serif;
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.cart-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border-radius: var(--radius);
    transition: var(--transition);
}

.cart-close:hover {
    background: var(--secondary-bg);
    color: var(--text-primary);
}

.cart-close svg {
    width: 20px;
    height: 20px;
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
}

.cart-items::-webkit-scrollbar {
    width: 6px;
}

.cart-items::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.cart-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.cart-empty-icon {
    width: 80px;
    height: 80px;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.cart-empty-icon svg {
    width: 100%;
    height: 100%;
}

.cart-empty-text {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.cart-empty-link {
    color: var(--accent-yellow);
    font-weight: 600;
    font-size: 0.9rem;
}

.cart-empty-link:hover {
    text-decoration: underline;
}

.cart-empty.hidden {
    display: none;
}

.cart-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--secondary-bg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-sm);
    transition: var(--transition);
}

.cart-item:hover {
    background: var(--border-light);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    background: var(--primary-bg);
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
}

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

.cart-item-info {
    flex: 1;
    min-width: 0;
}

.cart-item-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-item-price {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.quantity-btn {
    width: 32px;
    height: 32px;
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.quantity-btn:hover {
    border-color: var(--accent-yellow);
    color: var(--accent-yellow);
}

.cart-item-quantity {
    width: 36px;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
}

.cart-item-remove {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    margin-left: var(--space-sm);
    transition: var(--transition);
}

.cart-item-remove:hover {
    color: var(--error);
}

.cart-footer {
    padding: var(--space-md) var(--space-lg);
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
}

.cart-footer.hidden {
    display: none;
}

.cart-summary {
    margin-bottom: var(--space-md);
}

.cart-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.cart-summary-row.total {
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-color);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cart-total-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-yellow);
}

.checkout-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--accent-yellow);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    letter-spacing: 1px;
}

.checkout-btn:hover {
    background: var(--accent-yellow-dark);
    transform: translateY(-2px);
}

.checkout-btn svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Responsive - Cart
   ======================================== */
@media (max-width: 768px) {
    .cart-panel {
        width: 100%;
    }
}

/* ========================================
   Product Modal
   ======================================== */
.product-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.product-modal.active {
    display: flex;
}

.product-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
}

.product-modal-content {
    position: relative;
    width: 100%;
    max-width: 1100px;
    max-height: 92vh;
    background: var(--primary-bg);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.product-modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    z-index: 20;
}

.product-modal-close:hover {
    background: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--primary-bg);
    transform: rotate(90deg);
}

.product-modal-close svg {
    width: 24px;
    height: 24px;
}

.product-modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    height: 100%;
    overflow: hidden;
}

/* Left Column - Image Gallery */
.product-modal-gallery {
    background: var(--secondary-bg);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    position: relative;
}

.product-modal-main-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--primary-bg);
}

.product-modal-main-image img {
    max-width: 100%;
    max-height: 450px;
    object-fit: contain;
    transition: transform 0.5s ease;
    cursor: zoom-in;
}

.product-modal-main-image:hover img {
    transform: scale(1.05);
}

.product-modal-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #e8940f 100%);
    color: var(--primary-bg);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius);
    box-shadow: 0 4px 12px rgba(245, 166, 35, 0.4);
}

.product-modal-image-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    opacity: 0;
}

.product-modal-gallery:hover .product-modal-image-nav {
    opacity: 1;
}

.product-modal-image-nav:hover {
    background: var(--accent-yellow);
    color: var(--primary-bg);
}

.product-modal-image-nav.prev {
    left: var(--space-md);
}

.product-modal-image-nav.next {
    right: var(--space-md);
}

.product-modal-image-nav svg {
    width: 20px;
    height: 20px;
}

/* Right Column - Product Info */
.product-modal-info {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.product-modal-category {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: var(--accent-yellow);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.product-modal-category::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--accent-yellow);
    border-radius: 2px;
}

.product-modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

.product-modal-rating {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.product-modal-stars {
    display: flex;
    gap: 2px;
    color: #ffc107;
}

.product-modal-stars svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.product-modal-review-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.product-modal-price-wrapper {
    display: flex;
    align-items: baseline;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 2px solid var(--border-light);
}

.product-modal-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-yellow);
}

.product-modal-price-unit {
    font-size: 1rem;
    color: var(--text-muted);
}

.product-modal-stock {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: #22c55e;
    font-weight: 600;
}

.product-modal-stock svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.product-modal-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.product-modal-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--secondary-bg);
    border-radius: var(--radius);
}

.product-modal-specs {
    margin-bottom: var(--space-lg);
}

.product-modal-specs-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-modal-specs-list {
    display: grid;
    gap: var(--space-sm);
}

.product-modal-specs-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px dashed var(--border-light);
}

.product-modal-specs-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.product-modal-specs-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
}

.product-modal-quantity-section {
    margin-bottom: var(--space-lg);
}

.product-modal-quantity-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.product-modal-quantity-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.quantity-selector {
    display: flex;
    align-items: center;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.quantity-selector .quantity-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.quantity-selector .quantity-btn:hover {
    background: var(--accent-yellow);
    color: var(--primary-bg);
}

.quantity-selector .quantity-input {
    width: 60px;
    height: 44px;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.quantity-selector .quantity-input:focus {
    outline: none;
}

.product-modal-subtotal {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.product-modal-subtotal strong {
    color: var(--accent-yellow);
    font-size: 1.1rem;
}

.product-modal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: auto;
}

.product-modal-add-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--accent-yellow);
    color: var(--primary-bg);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-modal-add-btn:hover {
    background: var(--accent-yellow-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(245, 166, 35, 0.4);
}

.product-modal-add-btn svg {
    width: 22px;
    height: 22px;
}

.product-modal-buy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--primary-bg);
    color: var(--accent-yellow);
    border: 2px solid var(--accent-yellow);
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-modal-buy-btn:hover {
    background: var(--accent-yellow);
    color: var(--primary-bg);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(245, 166, 35, 0.3);
}

.product-modal-wishlist {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    margin-top: var(--space-sm);
    font-size: 0.9rem;
}

.product-modal-wishlist:hover {
    border-color: #ef4444;
    color: #ef4444;
}

.product-modal-wishlist svg {
    width: 20px;
    height: 20px;
}

/* Mobile Responsive for Modal */
@media (max-width: 1024px) {
    .product-modal-products {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .product-modal {
        padding: 0;
        align-items: flex-end;
    }

    .product-modal-content {
        width: 100%;
        max-height: 95vh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }

    .product-modal-body {
        grid-template-columns: 1fr;
    }

    .product-modal-gallery {
        padding: var(--space-md);
    }

    .product-modal-main-image img {
        max-height: 280px;
    }

    .product-modal-info {
        padding: var(--space-md);
    }

    .product-modal-title {
        font-size: 1.3rem;
    }

    .product-modal-price {
        font-size: 2rem;
    }

    .product-modal-features {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-sm);
    }

    .product-modal-actions {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Cart Page - Full Cart Layout
   ======================================== */
.cart-page-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.cart-page-items {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.cart-page-header {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr 50px;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--secondary-bg);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cart-page-item {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr 50px;
    gap: var(--space-md);
    padding: var(--space-lg);
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.cart-page-item:last-child { border-bottom: none; }

.cart-page-col-product {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.cart-page-item-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius);
    background: var(--secondary-bg);
    flex-shrink: 0;
}

.cart-page-item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cart-page-item-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.4;
}

.cart-page-item-name:hover { color: var(--accent-yellow); }

.cart-page-item-category {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.cart-page-col-price,
.cart-page-col-total { text-align: right; }

.cart-page-price {
    font-size: 0.9375rem;
    color: var(--text-primary);
}

.cart-page-item-total {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-yellow);
}

.cart-page-col-qty { display: flex; justify-content: center; }
.cart-page-col-action { display: flex; justify-content: center; }

.cart-page-remove {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s, background 0.2s;
}

.cart-page-remove:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.08);
}

.cart-page-remove svg { width: 18px; height: 18px; }

.cart-page-summary {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    height: fit-content;
    position: sticky;
    top: 90px;
}

.summary-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.summary-subtotal,
.summary-shipping {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 2px solid var(--border-color);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.summary-total span:last-child {
    color: var(--accent-yellow);
    font-size: 1.25rem;
}

.summary-checkout-btn {
    width: 100%;
    margin-top: var(--space-lg);
    padding: 0.875rem;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: var(--accent-yellow);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.summary-checkout-btn:hover { background: var(--accent-yellow-dark); }

.summary-continue-btn {
    display: block;
    text-align: center;
    margin-top: var(--space-md);
    font-size: 0.875rem;
    color: var(--accent-yellow);
    text-decoration: none;
}

.cart-page-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    text-align: center;
    min-height: 400px;
}

.cart-page-empty svg {
    width: 80px;
    height: 80px;
    stroke: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.cart-page-empty h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.cart-page-empty p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.cart-empty-btn {
    padding: 0.75rem 2rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: #fff;
    background: var(--accent-yellow);
    border-radius: var(--radius);
    text-decoration: none;
    transition: background 0.2s;
}

@media (max-width: 992px) {
    .cart-page-layout { grid-template-columns: 1fr; }
    .cart-page-summary { position: static; }
    .cart-page-header { display: none; }
    .cart-page-item { grid-template-columns: 1fr; gap: var(--space-sm); }
    .cart-page-col-price,
    .cart-page-col-qty,
    .cart-page-col-total { justify-content: flex-start; }
}