body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    align-items: center;
    overflow-x: hidden;
}

main {
    width: 100%;
    background-color: #EEF2F5;
}


.opcion {
    display: flex;
    justify-content: center;
    align-self: center;
    height: 200px;
    width: 200px;
    background-color: darkgray;
    border-radius: 50px;
    margin: 10px;
    animation-duration: 1s;
    transition-duration: 0.5s;
}


.option:hover {
    animation-name: example1;
}

@keyframes example1 {
    0% {
        background-color: darkgrey;
    }

    25% {
        background-color: rgb(91, 91, 91);
    }

    50% {
        background-color: rgb(54, 54, 54);
    }

}



.video {
    height: 400px;
    width: 900px;
}

.icono {
    display: block;
    margin: 0 auto;
    width: auto;
    height: 60%;
}


a:link,
a:visited,
a:active {
    text-decoration: none;
    color: black;
}



.listrans {
    list-style: none;
    margin-bottom: 10px;
}



.navbar li a:hover {
    background-color: whitesmoke;
    color: #333 !important;
}

.navbar li a {
    font-size: 25px;
    font-family: Arial, Helvetica, sans-serif;
}

#titulo {
    font-size: 40px;
    font-family: Arial, Helvetica, sans-serif;
}


.navbar-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    
}


.navbar-brand {
    position: absolute;
    left: 0;
    margin-left: 25px;

}



details[open] summary~* {
    animation: open 0.3s ease-in-out;
}

@keyframes open {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

details summary::-webkit-details-marker {
    display: none;
}

details summary {
    width: 100%;
    padding: 0.5rem 0;
    border-top: 1px solid black;
    position: relative;
    cursor: pointer;
    font-size: 1.25rem;
    font-weight: 400;
    list-style: none;
}

details summary:after {
    content: "+";
    color: black;
    position: absolute;
    font-size: 1.75rem;
    line-height: 0;
    margin-top: 0.75rem;
    right: 0;
    font-weight: 200;
    transform-origin: center;
    transition: 200ms linear;
}

details[open] summary:after {
    transform: rotate(45deg);
    font-size: 2rem;
}

details summary {
    outline: 0;
}

details p {
    font-size: 0.95rem;
    margin: 0 0 1rem;
    padding-top: 1rem;
}



@media only screen and (max-width: 800px) {
    .video {
        height: 300px;
        width: 700px;
    }
}

@media only screen and (max-width: 600px) {
    .video {
        height: 200px;
        width: 500px;
    }
}



@media (min-width: 1200px) {

    .container,
    .container-lg,
    .container-md,
    .container-sm,
    .container-xl {
        max-width: 1300px;
    }



    
}



@media (max-width: 994px) {
    .navbar .container-fluid {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .navbar-toggler {
        margin: auto;
    }

    .navbar-brand {
        position: relative;
        margin: auto;
    }


    .navbar-collapse {
        transition: max-height 0.3s ease-in-out;
        max-height: 0;
        overflow: hidden;
      }
    
      .navbar-collapse.show {
        max-height: 1000px; /* Ajusta el valor según tus necesidades */
      }
}