body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #333;
}
header {
  background: #3db8ff;
  color: white;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
nav a {
  color: white;
  margin-left: 1rem;
  text-decoration: none;
}
section {
  padding: 2rem;
}
footer {
  background: #222;
  color: white;
  text-align: center;
  padding: 1rem;
}