body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f4f6f8;
  color: #1a1a1a;
}

.header {
  background-color: #111;
  color: white;
  padding: 20px;
  text-align: center;
}

.header nav a {
  margin: 0 15px;
  color: #f3c623;
  text-decoration: none;
}

.main {
  padding: 40px 20px;
  text-align: center;
}

.intro h2 {
  font-size: 2rem;
  color: #007bff;
}

.services ul {
  list-style: none;
  padding: 0;
}

.services li {
  background: #fff;
  margin: 10px auto;
  padding: 10px;
  max-width: 300px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.footer {
  background-color: #111;
  color: #aaa;
  text-align: center;
  padding: 20px;
}