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

header {
    background: #004080;
    color: #fff;
    padding: 20px;
    text-align: center;
}

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

.hero {
    background: #e0f0ff;
    padding: 40px;
    text-align: center;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
}

section {
    padding: 40px 20px;
    max-width: 800px;
    margin: auto;
}

footer {
    background: #f2f2f2;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
}