body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f5f7fa;
}

header {
    background: #0a3d62;
    color: white;
    padding: 15px;
    display: flex;
    align-items: center;
}

.logo {
    height: 40px;
    margin-right: 15px;
}

main {
    padding: 20px;
}

footer {
    background: #eee;
    padding: 10px;
    text-align: center;
    font-size: 12px;
}