body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f4f4f4;
  color: #333;
}

header {
  background: #2c3e50;
  color: #fff;
  padding: 2rem;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

header nav a {
  color: #fff;
  margin: 0 1rem;
  text-decoration: none;
}

section {
  padding: 2rem;
  background: #fff;
  margin: 1rem;
  border-radius: 8px;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  margin-bottom: 0.5rem;
}

a {
  color: #2980b9;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #ecf0f1;
  margin-top: 2rem;
}