body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f4f6f9;
  color: #333;
}

header {
  background-color: #111827;
  padding: 20px 40px;
  color: white;
}

header h1 {
  margin: 0;
  font-size: 22px;
}

nav {
  margin-top: 10px;
}

nav a {
  color: #e5e7eb;
  margin-right: 20px;
  text-decoration: none;
  font-size: 14px;
}

nav a:hover {
  color: white;
}

.container {
  max-width: 1000px;
  margin: 60px auto;
  padding: 0 20px;
}

h2 {
  color: #111827;
}

ul {
  line-height: 1.8;
}

footer {
  margin-top: 80px;
  background-color: #111827;
  color: #e5e7eb;
  padding: 30px;
  text-align: center;
  font-size: 13px;
}

.section {
  margin-bottom: 40px;
}