body {
  background: #121212;
  color: #0f0;
  font-family: monospace, monospace;
  margin: 0;
  padding: 20px;
}

header {
  text-align: center;
  border-bottom: 2px solid #0f0;
  padding-bottom: 15px;
  margin-bottom: 30px;
}

nav a {
  color: #0f0;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

section {
  margin-bottom: 40px;
}

h1, h2 {
  text-shadow: 0 0 8px #0f0;
}

footer {
  text-align: center;
  border-top: 2px solid #0f0;
  padding-top: 15px;
}