body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 40px;
  background: #fefefe;
  color: #222;
}

h1 span {
  color: #d6336c;
}

header {
  border-bottom: 2px solid #eee;
  margin-bottom: 20px;
}

nav a {
  margin-right: 20px;
  text-decoration: none;
  color: #0055aa;
}

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

.note {
  background: #fff3cd;
  border-left: 5px solid #ffc107;
  padding: 10px;
  margin: 20px 0;
  font-style: italic;
}

footer {
  border-top: 1px solid #ccc;
  margin-top: 40px;
  padding-top: 10px;
  font-size: 0.9em;
  color: #666;
}