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

        body {
            font-family: Tahoma, Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(to bottom, #009999 0%, #009999 250px, #f5f5f5 250px, #f5f5f5 100%);
            min-height: 100vh;
        }

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

        header {
            background: linear-gradient(to bottom, #009999, #4CB8B8);
            padding: 20px 30px;
            text-align: center;
            color: white;
        }

        header h1 {
            font-size: 2em;
            font-weight: bold;
            margin: 0;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
        }

        nav {
            background-color: #005555;
            padding: 12px 0;
            text-align: center;
            border-bottom: 3px solid #009999;
        }

        nav a {
            color: #fff;
            text-decoration: none;
            padding: 10px 18px;
            display: inline-block;
            font-size: 0.9em;
            font-weight: bold;
            text-transform: uppercase;
            transition: background-color 0.3s;
        }

        nav a:hover {
            background-color: #009999;
            text-decoration: underline;
        }

        main {
            padding: 30px;
        }

        article {
            margin-bottom: 40px;
            line-height: 1.8;
        }

        article h2,
        article h3,
        article h4 {
            color: #009999;
            margin-top: 25px;
            margin-bottom: 15px;
            font-weight: bold;
        }

        article h2 {
            font-size: 1.5em;
            border-bottom: 2px solid #009999;
            padding-bottom: 8px;
        }

        article h3 {
            font-size: 1.3em;
        }

        article h4 {
            font-size: 1.1em;
        }

        article p {
            margin-bottom: 15px;
            text-align: justify;
            color: #333;
        }

        article ul,
        article ol {
            margin-left: 25px;
            margin-bottom: 15px;
        }

        article li {
            margin-bottom: 8px;
        }

        article strong {
            color: #005555;
        }

        .transition-section {
            background-color: #E6F5F5;
            padding: 25px;
            margin: 30px 0;
            border-left: 4px solid #009999;
            border-radius: 4px;
        }

        .transition-section p {
            margin-bottom: 12px;
            line-height: 1.7;
        }

        {% if links %}
        .links-section {
            background: linear-gradient(to bottom, #f9f9f9, #ffffff);
            padding: 35px 25px;
            margin-top: 40px;
            border-top: 3px solid #009999;
            border-bottom: 3px solid #009999;
        }

        .links-section h3 {
            color: #009999;
            font-size: 1.3em;
            margin-bottom: 18px;
            padding-bottom: 8px;
            border-bottom: 2px solid #B2E0E0;
            font-weight: bold;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px 25px;
            margin-bottom: 30px;
        }

        .links-section li {
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="8" height="8"><circle cx="4" cy="4" r="3" fill="%23009999"/></svg>') no-repeat left 8px;
            padding-left: 18px;
        }

        .links-section a {
            color: #005555;
            text-decoration: none;
            font-weight: bold;
            font-size: 0.95em;
            transition: color 0.3s, padding-left 0.3s;
            display: inline-block;
        }

        .links-section a:hover {
            color: #009999;
            text-decoration: underline;
            padding-left: 5px;
        }
        {% endif %}

        footer {
            background: linear-gradient(to top, #4CB8B8, #009999);
            color: white;
            padding: 25px 30px;
            text-align: center;
            font-size: 0.9em;
            margin-top: 50px;
        }

        footer a {
            color: #fff;
            text-decoration: none;
            margin: 0 10px;
            font-weight: bold;
        }

        footer a:hover {
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            body {
                background: #f5f5f5;
            }

            .container {
                box-shadow: none;
            }

            header h1 {
                font-size: 1.5em;
            }

            nav {
                padding: 8px 0;
            }

            nav a {
                display: block;
                padding: 8px 15px;
                border-bottom: 1px solid #007777;
            }

            nav a:last-child {
                border-bottom: none;
            }

            main {
                padding: 20px 15px;
            }

            article h2 {
                font-size: 1.3em;
            }

            article h3 {
                font-size: 1.15em;
            }

            .transition-section {
                padding: 18px;
            }

            {% if links %}
            .links-section {
                padding: 25px 15px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            {% endif %}

            footer {
                padding: 20px 15px;
            }

            footer a {
                display: block;
                margin: 8px 0;
            }
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 1.3em;
            }

            article h2 {
                font-size: 1.2em;
            }

            nav a {
                font-size: 0.85em;
            }
        }