body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #2c3e50;
  color: white;
  padding: 2rem;
  text-align: center;
}
nav {
  background: #34495e;
  text-align: center;
}
nav a {
  color: white;
  margin: 0 1rem;
  text-decoration: none;
  padding: 1rem;
  display: inline-block;
}
nav a:hover {
  background: #1abc9c;
}
section {
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.card {
  background: white;
  padding: 1rem;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
footer {
  background: #2c3e50;
  color: white;
  text-align: center;
  padding: 1rem;
}
img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
}
@media(max-width: 768px) {
  .grid {
    grid-template-columns: 1fr;
  }
}