/* Estilos generales */
body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    height: 100%;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.button-container {
    display: flex;
    justify-content: space-around;
    width: 80%;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    margin: 10px;
    background-color: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    text-align: center;
    flex: 1;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
}