body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f4f4f4;
}
header {
    background: #003366;
    color: white;
    padding: 40px 20px;
    text-align: center;
}
header h1 {
    margin: 0;
    font-size: 36px;
}
header p {
    font-size: 18px;
}
.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 25px;
    background-color: #00cc99;
    color: white;
    text-decoration: none;
    border-radius: 4px;
}
section {
    padding: 40px 20px;
}
.container {
    max-width: 800px;
    margin: 0 auto;
}
h2 {
    color: #003366;
}
footer {
    text-align: center;
    padding: 20px;
    background-color: #ddd;
}