body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #3775c7;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
}

header nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

main section {
    background: white;
    border-radius: 6px;
    padding: 1.5rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #e0e0e0;
    font-size: 0.9rem;
}