body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  background-color: #f9f9f9;
}
h1 {
  color: #2c3e50;
  border-bottom: 2px solid #2c3e50;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

h2 {
  color: #2c3e50;
  margin-top: 30px;
}

nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 20px;
  border-bottom: 1px sold #ddd;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

nav a {
  text-decoration: none;
  color: #3498db;
  font-weight: bold;
}
nav a:hover {
    text-decoration: underline;
}
ul {
  list-style-type: disc;
  padding-left: 20px;
}

p {
  margin-bottom: 15px;
}

a {
  color: #3498db;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #ddd;
  font-size: 0.9em;
  color: #666;
}