body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f7fa;
  color: #333;
}
header {
  background: #004aad;
  color: white;
  padding: 15px;
  text-align: center;
}
nav {
  background: #003080;
  padding: 10px;
  text-align: center;
}
nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover { text-decoration: underline; }
.container {
  padding: 30px;
  max-width: 900px;
  margin: auto;
}
h1, h2 { color: #004aad; }
footer {
  background: #003080;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 40px;
}
form input, form textarea {
  width: 100%;
  padding: 10px;
  margin: 8px 0;
  border: 1px solid #ccc;
  border-radius: 4px;
}
form button {
  background: #004aad;
  color: white;
  padding: 10px 15px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
form button:hover { background: #002a6f; }