body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    background-color: #f8f9fa;
}

.container {
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

h1 {
    color: #1a1a1a;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid #eee;
    padding-bottom: 1rem;
}

h2 {
    color: #2d3436;
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.2rem;
}

ul {
    margin-bottom: 1.2rem;
    padding-left: 20px;
}

li {
    margin-bottom: 0.5rem;
}

.footer {
    margin-top: 4rem;
    text-align: center;
    font-size: 0.9rem;
    color: #7f8c8d;
}

@media (max-width: 600px) {
    body {
        padding: 20px 15px;
    }
    .container {
        padding: 20px;
    }
    h1 {
        font-size: 1.8rem;
    }
}