body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #000000;
  line-height: 1.6;
}

header {
  border-bottom: 1px solid #cccccc;
  padding: 20px;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 26px;
}

nav {
  margin-top: 8px;
}

nav a {
  color: #0000ee;
  text-decoration: none;
  margin: 0 6px;
}

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

main {
  max-width: 900px;
  margin: 30px auto;
  padding: 0 20px;
}

footer {
  border-top: 1px solid #cccccc;
  margin-top: 40px;
  padding: 15px;
  text-align: center;
  font-size: 14px;
}

footer a {
  color: #0000ee;
  text-decoration: none;
}

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