body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #eee;
  background-color: #111;
}

header {
  background-color: #000;
  padding: 20px 0;
  text-align: center;
}

.logo {
  max-width: 120px;
  display: block;
  margin: 0 auto 10px;
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: #aaff44;
  font-weight: bold;
}

.hero {
  background-color: #222;
  padding: 60px 20px;
  text-align: center;
}

.section {
  padding: 40px 20px;
}

.section.light {
  background-color: #1a1a1a;
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: #000;
  color: #888;
}