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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            padding: 20px;
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        header {
            text-align: center;
            padding: 30px 0;
            border-bottom: 3px solid #2c3e50;
            margin-bottom: 30px;
        }

        h1 {
            color: #2c3e50;
            font-size: 2.5em;
            margin-bottom: 10px;
        }

        .last-update {
            color: #7f8c8d;
            font-size: 0.9em;
            font-style: italic;
        }

        h2 {
            color: #34495e;
            margin-top: 30px;
            margin-bottom: 15px;
            font-size: 1.8em;
            border-bottom: 2px solid #ecf0f1;
            padding-bottom: 10px;
        }

        h3 {
            color: #2c3e50;
            margin-top: 20px;
            margin-bottom: 10px;
            font-size: 1.3em;
        }

        h4 {
            color: #34495e;
            margin-top: 15px;
            margin-bottom: 8px;
            font-size: 1.1em;
        }

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

        ul {
            margin-left: 30px;
            margin-bottom: 15px;
        }

        li {
            margin-bottom: 10px;
        }

        strong {
            color: #2c3e50;
        }

        .contact-info {
            background-color: #ecf0f1;
            padding: 20px;
            border-radius: 5px;
            margin-top: 30px;
        }

        footer {
            text-align: center;
            padding: 20px 0;
            margin-top: 40px;
            border-top: 2px solid #ecf0f1;
            color: #7f8c8d;
            font-size: 0.9em;
        }

        @media (max-width: 768px) {
            .container {
                padding: 15px;
            }

            h1 {
                font-size: 2em;
            }

            h2 {
                font-size: 1.5em;
            }
        }