body {
  background-color: black;
  color: white;
  font-family: Arial, sans-serif;
  margin: 0;
}

header {
  background: #111;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header .logo {
  font-size: 1.5em;
  font-weight: bold;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 15px;
  margin: 0;
  padding: 0;
}

nav a {
  color: white;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 20px;
}

footer {
  background: #111;
  text-align: center;
  padding: 10px;
}