body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  color: #333;
}

header {
  background: #333;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
}

.logo {
  height: 40px;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 15px;
}

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

.hero {
  padding: 60px 20px;
  background: #eee;
  text-align: center;
}

.features {
  padding: 40px 20px;
}

footer {
  background: #222;
  color: #ccc;
  text-align: center;
  padding: 20px;
}