/* ============================================
   PERFECTTIO CART - PROFESSIONAL DESIGN
   ============================================ */

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --light-bg: #f8fafc;
    --border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ============================================
   CART PAGE LAYOUT
   ============================================ */

.cart-page {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    min-height: 100vh;
    padding: 60px 0 100px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   PAGE HEADER
   ============================================ */

.page-header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeInDown 0.6s ease-out;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

    .breadcrumb a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }

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

/* ============================================
   EMPTY CART
   ============================================ */

.empty-cart {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 80px 40px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease-out;
}

.empty-icon {
    color: var(--text-secondary);
    opacity: 0.3;
    margin-bottom: 24px;
}

.empty-cart h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.empty-cart p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.05rem;
}

/* ============================================
   CART LAYOUT
   ============================================ */

.cart-layout {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 32px;
    animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   CART ITEMS
   ============================================ */

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.items-header {
    background: white;
    padding: 24px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

    .items-header h2 {
        font-size: 1.5rem;
        color: var(--text-primary);
        font-weight: 700;
    }

/* CART CARD */
.cart-card {
    background: white;
    border-radius: var(--radius);
    padding: 24px;
    display: grid;
    grid-template-columns: 140px 1fr auto;
    gap: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

    .cart-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background: linear-gradient(135deg, var(--primary), #7c3aed);
        opacity: 0;
        transition: var(--transition);
    }

    .cart-card:hover {
        box-shadow: var(--shadow-xl);
        transform: translateY(-2px);
    }

        .cart-card:hover::before {
            opacity: 1;
        }

/* PRODUCT IMAGE */
.product-image {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--light-bg);
    aspect-ratio: 1;
}

    .product-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: var(--transition);
    }

.cart-card:hover .product-image img {
    transform: scale(1.05);
}

.sale-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow);
}

/* PRODUCT DETAILS */
.product-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.product-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

    .product-name a {
        color: var(--text-primary);
        text-decoration: none;
        transition: var(--transition);
    }

        .product-name a:hover {
            color: var(--primary);
        }

.stock-warning {
    background: #fef2f2;
    color: var(--danger);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.product-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.option-tag {
    background: var(--light-bg);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: auto;
}

.old-price {
    color: var(--text-secondary);
    text-decoration: line-through;
    font-size: 0.95rem;
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.price-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* PRODUCT ACTIONS */
.product-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 8px;
}

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

.qty-btn {
    background: white;
    border: none;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: var(--transition);
}

    .qty-btn:hover {
        background: var(--primary);
        color: white;
    }

    .qty-btn:active {
        transform: scale(0.95);
    }

.qty-input {
    border: none;
    width: 50px;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    height: 40px;
}

.btn-remove {
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

    .btn-remove:hover {
        background: #fef2f2;
        border-color: var(--danger);
    }

/* PRODUCT TOTAL */
.product-total {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
}

.total-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.total-price {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
}

/* CONTINUE SHOPPING */
.continue-shopping {
    margin-top: 12px;
}

/* ============================================
   CART SUMMARY
   ============================================ */

.cart-summary {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 20px;
    height: fit-content;
}

.summary-card {
    background: white;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.summary-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--light-bg);
}

.summary-rows {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    color: var(--text-secondary);
}

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

    .summary-row .amount {
        font-weight: 600;
        color: var(--text-primary);
    }

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 2px solid var(--light-bg);
    border-bottom: 2px solid var(--light-bg);
    margin: 20px 0;
}

    .summary-total span:first-child {
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--text-primary);
    }

.total-amount {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* PROMO CODE */
.promo-section {
    margin: 24px 0;
}

.promo-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--light-bg);
    border: 1px dashed var(--border);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

    .promo-toggle:hover {
        background: #e0e7ff;
        border-color: var(--primary);
    }

.promo-input-wrapper {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    animation: slideDown 0.3s ease-out;
}

.promo-code-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition);
}

    .promo-code-input:focus {
        outline: none;
        border-color: var(--primary);
    }

.btn-apply-promo {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

    .btn-apply-promo:hover:not(:disabled) {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: var(--shadow);
    }

    .btn-apply-promo:disabled {
        opacity: 0.6;
        cursor: not-allowed;
    }

.promo-message {
    margin-top: 8px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

    .promo-message.success {
        background: #d1fae5;
        color: #065f46;
    }

    .promo-message.error {
        background: #fee2e2;
        color: #991b1b;
    }

/* CHECKOUT BUTTON */
.btn-checkout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
    color: white;
    padding: 18px 32px;
    border-radius: var(--radius);
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

    .btn-checkout::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
        transition: left 0.5s;
    }

    .btn-checkout:hover::before {
        left: 100%;
    }

    .btn-checkout:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-xl);
    }

/* TRUST BADGES */
.trust-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

    .trust-badges .badge {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    .trust-badges svg {
        color: var(--success);
        flex-shrink: 0;
    }

/* SUPPORT CARD */
.support-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    gap: 16px;
}

    .support-card svg {
        color: var(--primary);
        flex-shrink: 0;
    }

    .support-card h4 {
        font-size: 1.1rem;
        color: var(--text-primary);
        margin-bottom: 6px;
    }

    .support-card p {
        color: var(--text-secondary);
        font-size: 0.9rem;
        margin-bottom: 12px;
    }

    .support-card a {
        color: var(--primary);
        font-weight: 600;
        text-decoration: none;
        transition: var(--transition);
    }

        .support-card a:hover {
            text-decoration: underline;
        }

/* ============================================
   BUTTONS
   ============================================ */

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: white;
    box-shadow: var(--shadow);
}

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--border);
}

    .btn-secondary:hover {
        border-color: var(--primary);
        background: var(--light-bg);
    }

/* ============================================
   RECOMMENDED PRODUCTS
   ============================================ */

.recommended-section {
    margin-top: 60px;
    padding-top: 60px;
    border-top: 2px solid var(--border);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
    text-align: center;
}

.recommended-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.recommended-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

    .recommended-card:hover {
        box-shadow: var(--shadow-xl);
        transform: translateY(-4px);
    }

.product-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.recommended-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.recommended-card h4 {
    padding: 16px;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.recommended-card .price {
    padding: 0 16px 16px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }

    to {
        opacity: 1;
        max-height: 200px;
    }
}

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

@media (max-width: 1024px) {
    .cart-layout {
        grid-template-columns: 1fr;
    }

    .cart-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }

    .cart-card {
        grid-template-columns: 100px 1fr;
        gap: 16px;
    }

    .product-total {
        grid-column: 2;
        align-items: flex-start;
        margin-top: 12px;
    }

    .recommended-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .cart-card {
        grid-template-columns: 1fr;
    }

    .product-image {
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }

    .product-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .quantity-selector {
        justify-content: center;
    }
}