body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

h1 {
    color: #2c3e50;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}

h2 {
    color: #3498db;
    margin-top: 30px;
}

p {
    margin-bottom: 15px;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

.container {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    padding: 30px;
}

.last-updated {
    font-style: italic;
    color: #7f8c8d;
    margin-top: 40px;
}

.contact {
    background-color: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
    margin-top: 30px;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    
    .container {
        background-color: #2d2d2d;
        box-shadow: 0 0 10px rgba(0,0,0,0.3);
    }
    
    h1 {
        color: #3498db;
        border-bottom: 2px solid #444;
    }
    
    h2 {
        color: #5dade2;
    }
    
    .contact {
        background-color: #333;
    }
    
    a {
        color: #5dade2;
    }
}

@media (max-width: 600px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 15px;
    }
}