body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}
header {
    background: #003366;
    color: white;
    padding: 20px 0;
    text-align: center;
}
nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
}
section {
    padding: 20px;
}
footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 10px;
}
form input, form textarea {
    width: 100%;
    margin-bottom: 10px;
}
button {
    padding: 10px 20px;
    background-color: #0055a5;
    color: white;
    border: none;
    cursor: pointer;
}