body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f7f9fc;
  color: #333;
}

header {
  background: #004aad;
  color: #fff;
  padding: 1rem;
  text-align: center;
}

nav a {
  color: #fff;
  margin: 0 10px;
  text-decoration: none;
}

nav a.active {
  text-decoration: underline;
}

main {
  padding: 20px;
}

form {
  max-width: 400px;
  margin: auto;
  display: flex;
  flex-direction: column;
}

input, textarea, button {
  margin-bottom: 10px;
  padding: 10px;
  font-size: 1rem;
}

button {
  background: #004aad;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: #003780;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
  margin-top: 30px;
}