body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px;
    background-color: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h1, h2, h3 {
    color: #2c3e50;
    font-weight: 600;
}

h1 {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid #3498db;
    color: #3498db;
}

h2 {
    margin-top: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

section {
    margin-bottom: 40px;
    padding: 0 15px;
}

p {
    margin: 15px 0;
    text-align: justify;
}

strong {
    color: #3498db;
}

ul, ol {
    margin: 15px 0;
    padding-left: 30px;
}

li {
    margin-bottom: 10px;
}

.footer {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    color: #7f8c8d;
    font-size: 0.9em;
}

.footer p {
    text-align: center;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }
}