body {
            font-family: 'Segoe UI', sans-serif;
            margin: 0;
            padding: 0;
            background: #eafaf1;
            color: #2d3436;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        header {
            background: #27ae60;
            color: white;
            padding: 2em 1em;
            text-align: center;
        }

        main {
            padding: 2em 1em;
            max-width: 1000px;
            margin: auto;
            flex: 1;
        }

        h2 {
            color: #2c3e50;
        }

        .imagenes {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1em;
            margin-top: 1em;
        }

        .imagenes img {
            width: 100%;
            max-width: 300px;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

        .descargar {
            text-align: center;
            margin-top: 2em;
        }

        .descargar a {
            background: #1abc9c;
            color: white;
            padding: 1em 2em;
            font-size: 1.2em;
            text-decoration: none;
            border-radius: 8px;
            transition: background 0.3s;
            display: inline-block;
        }

        .descargar a:hover {
            background: #16a085;
        }

        footer {
            background: #27ae60;
            color: white;
            text-align: center;
            padding: 1.5em 1em;
            font-size: 0.9em;
        }

        .social-icons {
            margin: 1em 0;
        }

        .social-icons a {
            margin: 0 10px;
            color: white;
            text-decoration: none;
            font-size: 1.2em;
        }

        .social-icons a:hover {
            text-decoration: underline;
        }

        /* Responsividad adicional */
        @media (max-width: 768px) {
            header {
                padding: 1.5em 1em;
            }

            .descargar a {
                width: 90%;
                font-size: 1em;
            }
        }

        @media (max-width: 480px) {
            .imagenes {
                flex-direction: column;
                align-items: center;
            }

            .descargar a {
                padding: 0.8em 1.5em;
                font-size: 1em;
            }
        }