body {
  font-family: Arial, sans-serif;
  background-color: #1e1e2f;
  color: #ffffff;
  margin: 0;
  padding: 0;
}
header {
  background-color: #282846;
  padding: 20px;
  text-align: center;
}
header h1 {
  margin: 0;
  font-size: 2em;
}
nav {
  margin-top: 10px;
}
nav a {
  color: #00ccff;
  margin: 0 15px;
  text-decoration: none;
}
nav a:hover {
  text-decoration: underline;
}
.container {
  padding: 30px;
}
h2, h3 {
  color: #ffcc00;
}
ul {
  list-style-type: square;
  margin-left: 20px;
}
footer {
  text-align: center;
  padding: 15px;
  background-color: #282846;
  margin-top: 30px;
}