* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        transition: background-color 0.25s ease, color 0.2s ease, border-color 0.2s ease;
    }
    body {
        font-family: 'Inter', sans-serif;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
    }

    /* Light mode (default) */
    :root {
        --bg-primary: #f8fafc;
        --bg-secondary: #ffffff;
        --bg-card: #ffffff;
        --bg-header: rgba(255, 255, 255, 0.92);
        --text-primary: #0f172a;
        --text-secondary: #334155;
        --text-muted: #64748b;
        --border-light: #e2e8f0;
        --accent: #2b7a4b;
        --accent-hover: #1e5a3a;
        --accent-soft: #e6f3ec;
        --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.03), 0 1px 2px rgba(0, 0, 0, 0.05);
        --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
        --icon-filter: brightness(0) saturate(100%) invert(15%) sepia(11%) saturate(1357%) hue-rotate(169deg) brightness(94%) contrast(92%);
    }

    body.dark {
        --bg-primary: #0a0c10;
        --bg-secondary: #111418;
        --bg-card: #1a1e24;
        --bg-header: rgba(17, 20, 24, 0.95);
        --text-primary: #edf2f7;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --border-light: #2d3a48;
        --accent: #3ba76d;
        --accent-hover: #56c288;
        --accent-soft: #1e2f2a;
        --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    }

    body {
        background: var(--bg-primary);
        color: var(--text-primary);
    }

    /* Utility */
    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* Header & Nav */
    .header {
        position: sticky;
        top: 0;
        background: var(--bg-header);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-light);
        z-index: 50;
        padding: 14px 0;
    }

    .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 1.6rem;
        letter-spacing: -0.02em;
        color: var(--text-primary);
    }

    .logo i {
        color: var(--accent);
        font-size: 1.8rem;
    }

    .nav-links {
        display: flex;
        gap: 28px;
        align-items: center;
    }

    .nav-links a {
        text-decoration: none;
        font-weight: 500;
        color: var(--text-secondary);
    }

    .nav-links a:hover {
        color: var(--accent);
    }

    .theme-toggle {
        background: var(--bg-secondary);
        border: 1px solid var(--border-light);
        border-radius: 40px;
        padding: 8px 14px;
        cursor: pointer;
        display: flex;
        gap: 8px;
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-primary);
    }

    .cart-icon {
        position: relative;
        font-size: 1.4rem;
        color: var(--text-primary);
        cursor: pointer;
    }

    .cart-count {
        position: absolute;
        top: -8px;
        right: -12px;
        background: var(--accent);
        color: white;
        font-size: 0.7rem;
        font-weight: bold;
        border-radius: 30px;
        padding: 2px 6px;
    }

    /* Hero section */
    .hero {
        background: linear-gradient(135deg, var(--accent-soft) 0%, var(--bg-primary) 100%);
        border-radius: 2rem;
        margin: 32px 0 40px 0;
        padding: 48px 40px;
        text-align: center;
    }

    .hero h1 {
        font-size: 2.5rem;
        font-weight: 700;
        letter-spacing: -0.02em;
        margin-bottom: 16px;
    }

    .hero p {
        font-size: 1.2rem;
        color: var(--text-secondary);
        max-width: 620px;
        margin: 0 auto;
    }

    /* Filters */
    .filters {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        margin: 32px 0 24px;
        gap: 16px;
    }

    .category-tabs {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    .cat-btn {
        background: var(--bg-secondary);
        border: 1px solid var(--border-light);
        padding: 8px 20px;
        border-radius: 40px;
        font-weight: 500;
        cursor: pointer;
        color: var(--text-secondary);
    }

    .cat-btn.active {
        background: var(--accent);
        border-color: var(--accent);
        color: white;
    }

    .search-box {
        display: flex;
        align-items: center;
        background: var(--bg-secondary);
        border: 1px solid var(--border-light);
        border-radius: 60px;
        padding: 6px 16px;
        gap: 8px;
    }

    .search-box i {
        color: var(--text-muted);
    }

    .search-box input {
        background: transparent;
        border: none;
        padding: 8px 0;
        width: 200px;
        outline: none;
        color: var(--text-primary);
    }

    /* Product Grid */
    .products-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
        gap: 28px;
        margin: 32px 0 48px;
    }

    .product-card {
        background: var(--bg-card);
        border-radius: 1.5rem;
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
        transition: transform 0.2s, box-shadow 0.2s;
    }

    .product-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-md);
    }

    .img-container {
        background: #f1f5f9;
        height: 220px;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
    }

    body.dark .img-container {
        background: #23272f;
    }

    .market-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
        transition: transform 0.3s ease;
    }

    .product-card:hover .market-img {
        transform: scale(1.03);
    }

    .card-content {
        padding: 18px 18px 22px;
    }

    .product-title {
        font-weight: 700;
        font-size: 1.2rem;
        margin-bottom: 6px;
    }

    .product-cat {
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        color: var(--accent);
        font-weight: 600;
    }

    .product-price {
        font-weight: 800;
        font-size: 1.5rem;
        margin: 12px 0 8px;
        color: var(--accent);
    }

    .product-desc {
        color: var(--text-muted);
        font-size: 0.85rem;
        margin-bottom: 16px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .add-btn {
        width: 100%;
        background: var(--accent);
        border: none;
        padding: 12px;
        border-radius: 40px;
        color: white;
        font-weight: 600;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: 0.2s;
    }

    .add-btn:hover {
        background: var(--accent-hover);
    }

    /* Cart Sidebar (offcanvas) */
    .cart-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        z-index: 100;
        visibility: hidden;
        opacity: 0;
        transition: 0.2s;
    }

    .cart-overlay.open {
        visibility: visible;
        opacity: 1;
    }

    .cart-sidebar {
        position: fixed;
        right: 0;
        top: 0;
        width: 380px;
        max-width: 90vw;
        height: 100%;
        background: var(--bg-secondary);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
        z-index: 101;
        padding: 24px;
        display: flex;
        flex-direction: column;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

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

    .cart-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-bottom: 16px;
        border-bottom: 1px solid var(--border-light);
        margin-bottom: 20px;
    }

    .cart-items {
        flex: 1;
        overflow-y: auto;
    }

    .cart-item {
        display: flex;
        gap: 12px;
        margin-bottom: 20px;
        align-items: center;
    }

    .cart-item-img {
        width: 55px;
        height: 55px;
        background: var(--bg-primary);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        flex-shrink: 0;
    }

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

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

    .cart-item-title {
        font-weight: 600;
    }

    .cart-item-price {
        color: var(--accent);
    }

    .cart-qty {
        display: flex;
        gap: 8px;
        align-items: center;
    }

    .cart-qty button {
        background: var(--bg-primary);
        border: 1px solid var(--border-light);
        width: 24px;
        border-radius: 8px;
        cursor: pointer;
    }

    .cart-total {
        margin-top: 20px;
        padding-top: 16px;
        border-top: 1px solid var(--border-light);
        font-weight: 700;
        font-size: 1.3rem;
    }

    .checkout-btn {
        background: var(--accent);
        width: 100%;
        padding: 14px;
        border: none;
        border-radius: 40px;
        color: white;
        font-weight: bold;
        margin-top: 20px;
        cursor: pointer;
    }

    .empty-cart {
        text-align: center;
        color: var(--text-muted);
        padding: 30px 0;
    }

    footer {
        border-top: 1px solid var(--border-light);
        padding: 32px 0;
        text-align: center;
        color: var(--text-muted);
        margin-top: 40px;
    }

    @media (max-width: 680px) {
        .nav {
            flex-direction: column;
            align-items: stretch;
        }

        .hero h1 {
            font-size: 1.8rem;
        }
    }