* {
            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;
            padding: 20px;
        }

        .container {
            max-width: 800px;
            margin: 0 auto;
            background-color: #fff;
            padding: 40px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
        }

        h1 {
            font-size: 2.5em;
            color: #2c3e50;
            margin-bottom: 30px;
            text-align: center;
            border-bottom: 3px solid #3498db;
            padding-bottom: 15px;
        }

        article h2 {
            font-size: 1.8em;
            color: #34495e;
            margin-top: 35px;
            margin-bottom: 20px;
            padding-left: 10px;
            border-left: 4px solid #3498db;
        }

        article h3 {
            font-size: 1.4em;
            color: #34495e;
            margin-top: 25px;
            margin-bottom: 15px;
        }

        article p {
            text-align: justify;
            margin-bottom: 15px;
            font-size: 1.05em;
            color: #555;
        }

        article ul {
            margin: 20px 0;
            padding-left: 30px;
        }

        article li {
            margin-bottom: 10px;
            color: #555;
        }

        article a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        article a:hover {
            color: #2980b9;
            text-decoration: underline;
        }

        .transition-section {
            margin-top: 40px;
            padding: 25px;
            background-color: #ecf0f1;
            border-radius: 6px;
            border-left: 4px solid #3498db;
        }

        .transition-section p {
            text-align: justify;
            font-size: 1.05em;
            color: #555;
            margin-bottom: 10px;
        }

        .links-section {
            margin-top: 40px;
            padding: 30px;
            background-color: #fafafa;
            border-radius: 6px;
            border: 1px solid #e0e0e0;
        }

        .links-section h2 {
            font-size: 1.8em;
            color: #34495e;
            margin-bottom: 25px;
            padding-left: 10px;
            border-left: 4px solid #3498db;
        }

        .links-section h3 {
            font-size: 1.4em;
            color: #2c3e50;
            margin-top: 30px;
            margin-bottom: 15px;
        }

        .links-section ul {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px 20px;
            margin-bottom: 25px;
        }

        .links-section li {
            padding: 8px 0;
        }

        .links-section a {
            color: #3498db;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .links-section a:hover {
            color: #2980b9;
            text-decoration: underline;
            transform: translateX(5px);
        }

        @media (max-width: 768px) {
            body {
                padding: 10px;
            }

            .container {
                padding: 25px;
            }

            h1 {
                font-size: 2em;
            }

            article h2 {
                font-size: 1.5em;
            }

            article h3 {
                font-size: 1.2em;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .links-section {
                padding: 20px;
            }

            .transition-section {
                padding: 15px;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.6em;
            }

            article h2 {
                font-size: 1.3em;
            }

            .container {
                padding: 15px;
            }
        }