body {
    font-family: Arial, sans-serif;
    margin: 0; padding: 0;
    background: #f4f4f4;
    color: #222;
}
header {
    background: #003366;
    color: white;
    padding: 1em;
    text-align: center;
}
header .tagline {
    font-style: italic;
    font-size: 0.9em;
}
nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    background: #eee;
    padding: 0.5em 0;
    margin: 0;
}
nav ul li {
    margin: 0 1em;
}
nav ul li a {
    text-decoration: none;
    color: #003366;
}
main {
    padding: 2em;
    background: white;
}
section {
    margin-bottom: 2em;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1em;
}
th, td {
    padding: 0.8em;
    border: 1px solid #ccc;
    text-align: left;
}
footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 1em;
    font-size: 0.85em;
}