body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
}
header {
  background: #ff5722;
  color: white;
  padding: 1rem;
  text-align: center;
}
nav a {
  color: white;
  margin: 0 1rem;
  text-decoration: none;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  padding: 2rem;
}
.product {
  background: white;
  padding: 1rem;
  border-radius: 5px;
  text-align: center;
}
.product img {
  width: 100%;
  max-width: 150px;
}
footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 1rem;
}