* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

header {
  background: #0077cc;
  color: white;
  padding: 20px 0;
  text-align: center;
}

nav ul {
  list-style: none;
  margin-top: 10px;
}

nav ul li {
  display: inline;
  margin: 0 10px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  text-align: center;
  padding: 60px 20px;
  background: #e3f2fd;
}

button {
  background: #0077cc;
  color: white;
  border: none;
  padding: 10px 20px;
  margin-top: 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background: #005fa3;
}

footer {
  text-align: center;
  padding: 20px;
  background: #222;
  color: white;
  margin-top: 40px;
}