body { font-family: Arial, sans-serif; margin:0; background:#fafafa; }
.header { display:flex; justify-content:space-between; align-items:center; padding:10px 20px; background:#fff; position:sticky; top:0; box-shadow:0 2px 5px rgba(0,0,0,0.1); }
.logo { font-size:20px; font-weight:bold; }
.search { padding:8px; width:300px; }
.icons a { margin-left:15px; text-decoration:none; }
.banner img { width:100%; border-radius:8px; }
.categories { padding:20px; }
.category-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:15px; }
.category { background:#f4f4f4; padding:20px; text-align:center; border-radius:6px; text-decoration:none; color:#333; }
.products { padding:20px; }
.product-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:20px; }
.product { background:#fff; padding:15px; border-radius:8px; box-shadow:0 2px 5px rgba(0,0,0,0.1); text-align:center; }
.product img { width:100%; height:250px; object-fit:cover; border-radius:6px; }
.btn { display:inline-block; padding:10px 15px; background:#007bff; color:#fff; text-decoration:none; border-radius:5px; }
.cart-item { background:#fff; margin:10px; padding:10px; border-radius:6px; }