}

header {
  background-color: #343a40;
  color: #fff;
  padding: 1.2em 0;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

header h1 {
  margin: 0;
  font-size: 2.2em;
  letter-spacing: 1px;
}

nav {
  margin-top: 1em;
}

nav a {
  color: #fff;
  text-decoration: none;
  padding: 0.6em 1.2em;
  margin: 0 0.6em;
  border-radius: 6px;
  background-color: rgba(255, 255, 255, 0.1);
  transition: background-color 0.3s ease;
}

nav a:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

main {
  padding: 2.5em;
}

#products {
  margin-top: 3em;
  text-align: center;
}

#products h2 {
  font-size: 2.2em;
  color: #2c3e50;
  margin-bottom: 0.8em;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5em;
  margin-top: 1.5em;
}

.products-grid button {
  padding: 1em;
  border: none;
  border-radius: 8px;
  background-color: #f0f0f0;
  color: #333;
  font-size: 1em;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.products-grid button:hover {
  background-color: #ddd;
}

footer {
  text-align: center;
  padding: 1.2em 0;
  background-color: #343a40;
  color: #fff;
  box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.2);
}