body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
}

header {
  background-color: green;
  color: white;
  padding: 20px;
  text-align: center;
}

nav {
  background: #444;
  display: flex;
  justify-content: center;
  padding: 10px;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
}

.hero {
  background: url('https://via.placeholder.com/1200x300?text=Fresh+Groceries') no-repeat center;
  background-size: cover;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8em;
  text-shadow: 2px 2px 4px #000;
}

.products-section,
.admin-section,
.cart-section {
  padding: 20px;
  background: white;
  margin: 10px;
  border-radius: 8px;
}

.products {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.product-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 15px;
  margin: 10px;
  width: 200px;
  text-align: center;
  box-shadow: 0 0 5px #ccc;
}

.product-card img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 5px;
}

.product-card button {
  background: green;
  color: white;
  border: none;
  padding: 8px 12px;
  margin-top: 10px;
  cursor: pointer;
  border-radius: 5px;
}

form input,
form button {
  padding: 10px;
  margin: 5px 0;
  width: 100%;
  max-width: 300px;
  display: block;
}

form button {
  background: green;
  color: white;
  border: none;
  cursor: pointer;
}

footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 30px;
}

@media(max-width: 768px) {
  .products {
    flex-direction: column;
    align-items: center;
  }
}