* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; line-height: 1.6; color: #333; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }

/* Header */
.main-header { background: #fff; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.top-bar { background: #f5f5f5; padding: 8px 0; font-size: 14px; }
.top-bar .container { display: flex; justify-content: space-between; }
.header-main { padding: 20px 0; }
.header-main .container { display: flex; justify-content: space-between; align-items: center; }
.logo h1 { color: #0066cc; font-size: 28px; }
.logo span { font-size: 14px; color: #666; }
.main-nav { background: #0066cc; }
.main-nav .container { display: flex; justify-content: space-between; align-items: center; }
.nav-menu { display: flex; list-style: none; }
.nav-menu li { position: relative; }
.nav-menu a { color: #fff; text-decoration: none; padding: 15px 20px; display: block; }
.nav-menu a:hover { background: #0052a3; }
.dropdown-menu { display: none; position: absolute; background: #fff; min-width: 200px; box-shadow: 0 2px 5px rgba(0,0,0,0.2); z-index: 100; }
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a { color: #333; padding: 10px 15px; }
.dropdown-menu a:hover { background: #f0f0f0; }
.search-box { display: flex; }
.search-box input { padding: 8px 12px; border: none; border-radius: 4px 0 0 4px; width: 250px; }
.search-box button { padding: 8px 20px; background: #ff9900; color: #fff; border: none; border-radius: 0 4px 4px 0; cursor: pointer; }

/* Product Grid */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 20px 0; }
.product-card { border: 1px solid #eee; border-radius: 8px; overflow: hidden; transition: box-shadow 0.3s; }
.product-card:hover { box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.product-card img { width: 100%; height: 180px; object-fit: cover; }
.product-card h4 { padding: 10px; font-size: 14px; }
.product-card .price { padding: 0 10px 10px; color: #0066cc; font-weight: bold; }

/* Footer */
.main-footer { background: #333; color: #fff; margin-top: 40px; }
.footer-top { padding: 40px 0; }
.footer-top .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.footer-col h4 { margin-bottom: 15px; color: #ff9900; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col a { color: #ccc; text-decoration: none; }
.footer-bottom { background: #222; padding: 15px 0; text-align: center; }

/* Responsive */
@media (max-width: 768px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top .container { grid-template-columns: 1fr; }
}