* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: auto;
    background: white;
    padding: 30px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

header h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #004080;
}

main section {
    margin-bottom: 25px;
}

main h2 {
    color: #0066cc;
    margin-bottom: 10px;
    font-size: 1.3em;
}

footer {
    text-align: center;
    margin-top: 40px;
    font-size: 0.9em;
    color: #777;
}