body {
  font-family: Arial;
  margin: 0;
  background: #111;
  color: white;
}

header, footer {
  background: #222;
  padding: 1rem;
}

nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
}

a {
  color: #4da6ff;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: black;
  color: white;
  padding: 10px;
}

.skip-link:focus {
  top: 0;
}