body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f9ff;
  color: #333;
}
header.hero {
  text-align: center;
  background: #0077cc;
  color: white;
  padding: 20px;
}
header .logo {
  width: 120px;
}
header nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
  font-weight: bold;
}
.campaign {
  background: #ffcc00;
  color: #000;
  padding: 10px;
  margin-top: 10px;
  font-size: 18px;
  font-weight: bold;
}
section {
  padding: 40px;
  max-width: 800px;
  margin: auto;
}
form input, form select, form textarea, form button {
  display: block;
  margin: 10px 0;
  padding: 10px;
  width: 100%;
  max-width: 500px;
}
form button {
  background: #0077cc;
  color: white;
  border: none;
  cursor: pointer;
}
form button:hover {
  background: #005fa3;
}
footer {
  background: #0077cc;
  color: white;
  text-align: center;
  padding: 20px;
}