body { 
    font-family: sans-serif;
    margin: 0; padding: 0;
    background: #f5f5f5;
    color: #333;
}
header, footer {
    background: #005bac;
    color: white;
    padding: 1em;
    text-align: center;
}
nav { 
    background: #e0e0e0;
    padding: 1em;
    text-align: center;
}
nav a {
    margin: 0 1em;
    color: #005bac;
    text-decoration: none;
}
section {
    padding: 2em;
    max-width: 1000px;
    margin: auto;
    background: white;
    margin-bottom: 1em;
    border-radius: 8px;
}
h2 {
    color: #005bac;
}