.back-link {
    display: block;
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 10px 20px;
    background-color: #ff7200; /* Color principal */
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s;
    font-size: 16px;
    font-weight: bold;
    animation: pulse 1s infinite;
}

.back-link:hover {
    background-color: #e65a00; /* Color principal con tono más oscuro al pasar el cursor */
}

.back-icon {
    margin-right: 5px;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
}

header {
    background-color: #ff7200;
    color: #fff;
    padding: 20px;
    text-align: center;
}

article {
    padding: 20px;
    background-color: #fff;
    margin: 20px;
    border-radius: 5px;
}

img {
    max-width: 100%;
    height: auto;
    margin-bottom: 20px;
}

aside {
    background-color: #fff;
    padding: 20px;
    margin: 20px;
    border-radius: 5px;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
}