body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  color: #333;
}
header {
  background: #003366;
  color: white;
  padding: 20px;
  text-align: center;
}
header h1 {
  margin: 0;
}
nav {
  margin-top: 10px;
}
nav a {
  color: #ffcc00;
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
}
nav a:hover {
  color: #ffffff;
  text-decoration: underline;
}
main {
  padding: 40px 20px;
  max-width: 800px;
  margin: auto;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  border-radius: 8px;
}
section h2 {
  color: #003366;
}
footer {
  background: #003366;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}
a {
  color: #003366;
}
form input,
form textarea {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
form button {
  background: #003366;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
form button:hover {
  background: #00509e;
}