body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom right, #d6d4d0, #f4f1f5);
    color: #f0eaea;
}
.header {
    display: flex;
    align-items: center;
    padding: 12px;
    background-color: #e40e20;
    color: white;
}
.logo {
    height: 50px;
    margin-right: 20px;
}
.banner h1 {
    margin: 0;
    font-size: 12px;
}
.banner p {
    margin: 0;
    font-size: 14px;
}
main.contenido {
    padding: 20px;
}
main iframe {
    width: 100%;
    height: 80vh;
    border: none;
}
.footer {
    background-color: #e40e20;
    color: white;
    text-align: center;
    font-size: 8px;
    padding: 10px 10px;
     height: 30px;
}
.btn-regresar {
    display: inline-block;
    margin: 15px 0;
    padding: 10px 20px;
    background-color: #ee2020;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.3s;
}
.btn-regresar:hover {
    background-color: #317f15;
}