:root {
    --primary: #ff6b35;
    --primary-dark: #e2551f;
    --dark: #1a1a2e;
    --gray: #6b7280;
    --light-gray: #f4f5f7;
    --border: #e5e7eb;
    --success: #16a34a;
    --danger: #dc2626;
    --radius: 10px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark);
    background: #fff;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

/* ===== HEADER ===== */
.topbar {
    background: var(--dark);
    color: #fff;
    font-size: 13px;
}
.topbar-inner {
    display: flex;
    justify-content: space-between;
    padding: 8px 20px;
}
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    gap: 20px;
}
.logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    white-space: nowrap;
}
.search-form {
    flex: 1;
    display: flex;
    max-width: 500px;
}
.search-form input {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid var(--border);
    border-right: none;
    border-radius: 6px 0 0 6px;
    outline: none;
    font-family: inherit;
}
.search-form button {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 0 18px;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    font-size: 16px;
}
.nav-actions { display: flex; align-items: center; gap: 15px; }
.cart-link {
    background: var(--dark);
    color: #fff;
    padding: 10px 18px;
    border-radius: 6px;
    font-weight: 500;
    position: relative;
}
.cart-count {
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 50%;
    margin-left: 6px;
}
.category-nav {
    background: var(--light-gray);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.cat-nav-inner {
    display: flex;
    gap: 25px;
    padding: 12px 20px;
    overflow-x: auto;
    white-space: nowrap;
}
.cat-nav-inner a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray);
}
.cat-nav-inner a:hover, .cat-nav-inner a.active {
    color: var(--primary);
}

/* ===== HERO ===== */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 70px 20px;
    text-align: center;
}
.hero h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 15px;
}
.hero p {
    font-size: 18px;
    color: #cbd5e1;
    margin-bottom: 28px;
}
.btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 13px 32px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: background .2s;
}
.btn:hover { background: var(--primary-dark); }
.btn-outline {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
}
.btn-block { width: 100%; text-align: center; }
.btn-secondary { background: var(--dark); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* ===== SECTION ===== */
.section { padding: 55px 20px; }
.section-title {
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 8px;
}
.section-subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 35px;
}

/* ===== PRODUCT GRID ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 22px;
}
.product-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    transition: box-shadow .2s, transform .2s;
    position: relative;
}
.product-card:hover {
    box-shadow: 0 10px 25px rgba(0,0,0,.08);
    transform: translateY(-3px);
}
.product-img {
    width: 100%;
    height: 210px;
    object-fit: cover;
    background: var(--light-gray);
}
.badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
}
.product-info { padding: 15px; }
.product-cat { font-size: 12px; color: var(--gray); text-transform: uppercase; letter-spacing: .5px;}
.product-name {
    font-size: 15px;
    font-weight: 600;
    margin: 6px 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 40px;
}
.price-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.price-now { font-size: 18px; font-weight: 700; color: var(--primary); }
.price-old { font-size: 13px; color: var(--gray); text-decoration: line-through; }
.add-cart-btn {
    width: 100%;
    background: var(--dark);
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    font-size: 14px;
}
.add-cart-btn:hover { background: var(--primary); }

/* ===== FEATURES ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
    background: var(--light-gray);
}
.feature-item {
    text-align: center;
    padding: 15px;
}
.feature-item .icon { font-size: 34px; margin-bottom: 10px; }
.feature-item h4 { font-size: 16px; margin-bottom: 4px; }
.feature-item p { font-size: 13px; color: var(--gray); }

/* ===== PRODUCT DETAIL ===== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 45px;
    padding: 45px 20px;
}
.product-detail img {
    border-radius: var(--radius);
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    background: var(--light-gray);
}
.product-detail h1 { font-size: 28px; margin-bottom: 12px; }
.pd-price { font-size: 26px; color: var(--primary); font-weight: 700; margin: 15px 0; }
.pd-desc { color: var(--gray); margin-bottom: 20px; }
.qty-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}
.qty-selector button {
    width: 36px; height: 36px;
    border: 1px solid var(--border);
    background: #fff;
    font-size: 18px;
    cursor: pointer;
    border-radius: 6px;
}
.qty-selector input {
    width: 55px;
    text-align: center;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
}
.stock-info { margin-bottom: 20px; font-size: 14px; }
.in-stock { color: var(--success); font-weight: 600; }
.out-stock { color: var(--danger); font-weight: 600; }

/* ===== CART PAGE ===== */
.cart-page { padding: 40px 20px; }
.cart-table { width: 100%; border-collapse: collapse; margin-bottom: 30px; }
.cart-table th, .cart-table td {
    padding: 14px 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}
.cart-item-info { display: flex; align-items: center; gap: 12px; }
.cart-item-info img { width: 65px; height: 65px; object-fit: cover; border-radius: 6px; }
.cart-summary {
    max-width: 380px;
    margin-left: auto;
    background: var(--light-gray);
    padding: 22px;
    border-radius: var(--radius);
}
.cart-summary-row {
    display: flex; justify-content: space-between;
    padding: 8px 0;
}
.cart-summary-row.total { font-weight: 700; font-size: 18px; border-top: 1px solid var(--border); margin-top: 8px; padding-top: 14px; }
.qty-input-small { width: 55px; padding: 6px; border: 1px solid var(--border); border-radius: 6px; text-align: center; }
.remove-link { color: var(--danger); font-size: 13px; }

/* ===== CHECKOUT / FORMS ===== */
.checkout-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; padding: 40px 20px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.order-summary-box {
    background: var(--light-gray);
    padding: 22px;
    border-radius: var(--radius);
    height: fit-content;
}
.order-line { display: flex; justify-content: space-between; padding: 8px 0; font-size: 14px; border-bottom: 1px solid var(--border); }

/* ===== SUCCESS PAGE ===== */
.success-page { text-align: center; padding: 80px 20px; }
.success-icon { font-size: 70px; color: var(--success); margin-bottom: 20px; }
.order-number-box {
    display: inline-block;
    background: var(--light-gray);
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 20px;
    margin: 20px 0;
    color: var(--primary);
}

/* ===== ALERTS ===== */
.alert { padding: 13px 18px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }
.empty-state { text-align: center; padding: 60px 20px; color: var(--gray); }

/* ===== FOOTER ===== */
.site-footer { background: var(--dark); color: #cbd5e1; margin-top: 50px; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 30px;
    padding: 50px 20px 30px;
}
.footer-col h3 { color: #fff; margin-bottom: 12px; }
.footer-col h4 { color: #fff; margin-bottom: 14px; font-size: 15px; }
.footer-col p { font-size: 14px; color: #94a3b8; }
.footer-col ul li { margin-bottom: 9px; font-size: 14px; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-bottom {
    border-top: 1px solid #2d2d44;
    padding: 18px 20px;
    text-align: center;
    font-size: 13px;
    color: #94a3b8;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .main-nav { flex-wrap: wrap; }
    .search-form { order: 3; max-width: 100%; width: 100%; }
    .product-detail { grid-template-columns: 1fr; }
    .checkout-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 30px; }
    .form-row { grid-template-columns: 1fr; }
}