/* Grundlayout */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f9f9f9;
  color: #333;
}

/* Kopfbereich */
header {
  background: #004080;
  color: #fff;
  text-align: center;
  padding: 20px;
}

header .logo {
  max-width: 150px;
  display: block;
  margin: 0 auto 10px;
}

/* Hauptinhalte */
main {
  padding: 20px;
}

h2 {
  color: #004080;
}

ul {
  list-style: square;
  padding-left: 20px;
}

/* Fußbereich */
footer {
  background: #333;
  color: #fff;
  text-align: center;
  padding: 10px;
  margin-top: 20px;
}

/* Mobilfreundlich */
@media (max-width: 600px) {
  header h1 {
    font-size: 1.5em;
  }
}