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

body {
    font-family: system-ui, -apple-system, sans-serif;
    color: #222;
    background: #fff;
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.navbar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 24px;
    background: #fff;
    border-bottom: 2px solid #2ECC71;
    flex-wrap: wrap;
}

.logo {
    font-size: 22px;
    color: #2ECC71;
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 16px;
    margin: 0 auto;
}

.nav-links a {
    color: #444;
    font-weight: 600;
    font-size: 14px;
}

.nav-links a:hover {
    color: #2ECC71;
}

.wishlist-link {
    font-size: 15px !important;
}

.search-bar {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    width: 180px;
}

.search-bar:focus {
    border-color: #2ECC71;
}

.search-button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    background: #2ECC71;
    color: #fff;
    font-weight: 700;
    cursor: pointer;
    font-size: 13px;
}

.search-button:hover {
    background: #27ae60;
}

.hero {
    text-align: center;
    padding: 60px 24px;
    background: #f0fdf4;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 10px;
}

.text-green {
    color: #2ECC71;
}

.hero p {
    font-size: 18px;
    color: #555;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    background: #eee;
    color: #333;
    font-weight: 700;
    cursor: pointer;
    font-size: 13px;
    transition: 0.2s;
}

.btn:hover {
    background: #ddd;
}

.btn-green {
    background: #2ECC71;
    color: #fff;
}

.btn-green:hover {
    background: #27ae60;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.filter-section {
    display: flex;
    gap: 10px;
    padding: 20px 24px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-section input,
.filter-section select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    flex: 1;
    min-width: 130px;
}

.filter-section input:focus,
.filter-section select:focus {
    border-color: #2ECC71;
}

.section {
    padding: 32px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section h2 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #2ECC71;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.product-card {
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 16px;
    transition: 0.2s;
}

.product-card:hover {
    border-color: #2ECC71;
    box-shadow: 0 2px 12px rgba(46,204,113,0.1);
}

.product-card img {
    border-radius: 8px;
    margin-bottom: 10px;
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-image {
    position: relative;
    display: block;
}

.oos-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: #dc2626;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-card h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.price {
    font-size: 18px;
    font-weight: 700;
    color: #2ECC71;
}

strike {
    color: #999;
    font-size: 13px;
}

.product-card .btn {
    margin-top: 8px;
    margin-right: 4px;
}

.deal-section {
    background: #f0fdf4;
    border-radius: 12px;
    padding: 32px 24px;
    margin: 32px auto;
}

.deal-card img {
    border-radius: 8px;
    margin-bottom: 10px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px 12px;
    border: 1px solid #eee;
    border-radius: 10px;
    text-align: center;
    transition: 0.2s;
}

.category-card:hover {
    border-color: #2ECC71;
    background: #f0fdf4;
    transform: translateY(-2px);
}

.cat-icon {
    font-size: 16px;
    font-weight: 800;
    color: #2ECC71;
    background: #f0fdf4;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

.cat-name {
    font-weight: 700;
    font-size: 14px;
}

details {
    padding: 12px 16px;
    border: 1px solid #eee;
    border-radius: 8px;
    margin-bottom: 8px;
}

details summary {
    cursor: pointer;
}

.newsletter {
    text-align: center;
    background: #f0fdf4;
    border-radius: 12px;
    padding: 40px 24px;
    margin: 32px auto;
}

.newsletter form {
    display: flex;
    gap: 10px;
    max-width: 400px;
    margin: 16px auto 0;
}

.newsletter input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    outline: none;
}

.newsletter input:focus {
    border-color: #2ECC71;
}

.product-detail {
    display: flex;
    gap: 40px;
    padding: 40px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.product-images {
    flex: 0 0 400px;
}

.product-images img {
    width: 100%;
    border-radius: 10px;
}

.thumbnails {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.thumbnails img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 1px solid #eee;
}

.thumbnails img:hover {
    border-color: #2ECC71;
}

.product-info {
    flex: 1;
}

.product-category {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #2ECC71;
    font-weight: 700;
}

.product-info h1 {
    font-size: 28px;
    margin: 6px 0 10px;
}

.rating {
    color: #2ECC71;
    margin-bottom: 14px;
}

.rating span {
    color: #666;
    font-size: 14px;
}

.pricing {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.pricing .price {
    font-size: 26px;
}

.old-price {
    font-size: 16px;
    color: #999;
    text-decoration: line-through;
}

.availability {
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 14px;
}

.in-stock {
    color: #2ECC71;
}

.desc {
    color: #555;
    line-height: 1.7;
    margin-bottom: 16px;
}

.quantity {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.quantity input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    width: 70px;
    font-size: 14px;
}

@media (max-width: 768px) {
    .product-detail {
        flex-direction: column;
    }
    .product-images {
        flex: unset;
    }
    .cart-layout {
        flex-direction: column;
    }
    .cart-summary {
        width: 100%;
    }
    .cart-item {
        flex-wrap: wrap;
    }
}

.cart-layout {
    display: flex;
    gap: 32px;
    align-items: start;
}

.cart-items {
    flex: 1;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border: 1px solid #eee;
    border-radius: 10px;
    margin-bottom: 12px;
}

.cart-item img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
}

.cart-item-info {
    flex: 1;
}

.cart-item-info h4 {
    font-size: 15px;
    margin-bottom: 4px;
}

.cart-item-info .price {
    font-size: 15px;
}

.qty-input {
    width: 60px;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 6px;
    text-align: center;
    font-size: 14px;
}

.cart-total {
    font-weight: 700;
    font-size: 15px;
    min-width: 90px;
    text-align: right;
}

.remove-btn {
    background: none;
    color: #dc2626;
    border: 1px solid #fca5a5;
}

.remove-btn:hover {
    background: #fef2f2;
}

.cart-summary {
    width: 300px;
    padding: 24px;
    border: 1px solid #eee;
    border-radius: 10px;
    background: #fafafa;
}

.cart-summary h3 {
    margin-bottom: 16px;
    font-size: 18px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 14px;
}

.summary-row.total {
    font-size: 18px;
    font-weight: 700;
    margin-top: 10px;
}

.checkout-btn {
    width: 100%;
    text-align: center;
    margin-top: 16px;
    padding: 14px;
    font-size: 15px;
}

.checkout-layout {
    display: flex;
    gap: 32px;
    align-items: start;
}

.checkout-form {
    flex: 1;
}

.form-section {
    margin-bottom: 24px;
}

.form-section h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: #2ECC71;
}

.checkout-form label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.checkout-form input[type="text"],
.checkout-form input[type="tel"],
.checkout-form input[type="email"],
.checkout-form select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 14px;
    outline: none;
}

.checkout-form input:focus,
.checkout-form select:focus {
    border-color: #2ECC71;
}

.radio-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid #eee;
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    font-weight: 400;
}

.radio-row:hover {
    border-color: #2ECC71;
    background: #f0fdf4;
}

.radio-row input {
    accent-color: #2ECC71;
}

.coupon-row {
    display: flex;
    gap: 10px;
}

.coupon-row input {
    flex: 1;
}

.place-order {
    width: 100%;
    padding: 14px;
    font-size: 16px;
}

.checkout-summary {
    width: 340px;
    padding: 24px;
    border: 1px solid #eee;
    border-radius: 10px;
    background: #fafafa;
}

.checkout-summary h3 {
    margin-bottom: 16px;
    font-size: 18px;
}

.checkout-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.checkout-item img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

.checkout-item p {
    font-size: 14px;
    font-weight: 600;
}

.checkout-item .price {
    font-size: 13px;
}

.ai-subtitle {
    color: #555;
    margin-bottom: 24px;
    font-size: 15px;
}

.chat-container {
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    max-width: 700px;
}

.chat-messages {
    padding: 20px;
    height: 420px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: #fafafa;
}

.msg {
    display: flex;
    gap: 10px;
    align-items: start;
}

.msg.user {
    flex-direction: row-reverse;
}

.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #2ECC71;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.msg-bubble {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.5;
    max-width: 480px;
    background: #fff;
    border: 1px solid #eee;
}

.msg.user .msg-bubble {
    background: #2ECC71;
    color: #fff;
    border: none;
}

.result-card {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    align-items: center;
}

.result-card:last-child {
    border-bottom: none;
}

.result-card img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 8px;
}

.result-title {
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 2px;
}

.result-card .price {
    font-size: 14px;
}

.result-card .btn {
    font-size: 12px;
    padding: 6px 14px;
    margin-top: 4px;
}

.chat-input {
    display: flex;
    gap: 0;
    border-top: 1px solid #eee;
    padding: 12px;
    background: #fff;
}

.chat-input input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-right: none;
    border-radius: 8px 0 0 8px;
    font-size: 14px;
    outline: none;
}

.chat-input input:focus {
    border-color: #2ECC71;
}

.chat-input .btn {
    border-radius: 0 8px 8px 0;
    padding: 12px 20px;
}

.ai-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #2ECC71;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(46,204,113,0.4);
    cursor: pointer;
    border: none;
    z-index: 100;
    transition: 0.2s;
    text-decoration: none;
}

.ai-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(46,204,113,0.5);
}

.ai-fab img {
    width: 28px;
    height: 28px;
    filter: brightness(0) invert(1);
}

.success-page {
    display: flex;
    justify-content: center;
}

.success-card {
    max-width: 560px;
    width: 100%;
    padding: 40px;
    border: 1px solid #eee;
    border-radius: 14px;
    text-align: center;
}

.success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #2ECC71;
    color: #fff;
    font-size: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.success-card h1 {
    font-size: 26px;
    margin-bottom: 4px;
}

.success-sub {
    color: #555;
    margin-bottom: 24px;
}

.order-code {
    background: #f0fdf4;
    padding: 14px;
    border-radius: 10px;
    margin-bottom: 24px;
}

.order-code span {
    font-size: 13px;
    color: #555;
}

.order-code strong {
    display: block;
    font-size: 20px;
    color: #2ECC71;
    letter-spacing: 1px;
    margin-top: 4px;
}

.success-details {
    text-align: left;
    margin-bottom: 20px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #f5f5f5;
    font-size: 14px;
}

.detail-label {
    color: #888;
}

.order-items {
    text-align: left;
    margin: 20px 0;
}

.order-items h3 {
    font-size: 15px;
    margin-bottom: 12px;
}

.success-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.success-item img {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 8px;
}

.success-item p {
    font-size: 14px;
    font-weight: 600;
}

.success-item .price {
    font-size: 13px;
}

.success-item span:last-child {
    margin-left: auto;
    color: #888;
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 16px 0;
    font-size: 16px;
    font-weight: 700;
}

.success-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.success-actions .btn {
    flex: 1;
    padding: 12px;
    font-size: 14px;
}

footer {
    padding: 32px 24px 16px;
    border-top: 1px solid #eee;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto 20px;
}

footer h3 {
    font-size: 15px;
    color: #2ECC71;
    margin-bottom: 12px;
}

footer li {
    margin-bottom: 6px;
    font-size: 14px;
    color: #555;
}

footer a:hover {
    color: #2ECC71;
}

footer hr {
    margin: 16px 0;
    border: none;
    border-top: 1px solid #eee;
}

footer p {
    text-align: center;
    font-size: 13px;
    color: #999;
}

@media (max-width: 600px) {
    .navbar { flex-direction: column; align-items: stretch; }
    .nav-links { margin: 0; justify-content: center; }
    .search-bar { width: 100%; }
    .hero h1 { font-size: 30px; }
    .filter-section { flex-direction: column; }
    .filter-section input,
    .filter-section select { width: 100%; }
}