body {
    background-color: #161616;
    color: #f2f2f2;
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

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

h1 {
    margin: 0;
}

section {
    padding: 25px 25px;
    border-top: 2px solid #fff;
    border-top-width: 50%;
    border-bottom: 2px solid #fff;
    border-bottom-width: 50%;
    height: 50%;
    width: 50%;
    align-self: center;
}

button{
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

#resultados-busqueda {
    display: flex;
    justify-content: space-around;
    flex-direction: column;
    list-style: none;
    align-items: center;
    padding-left: 0;
}
 
#resultados-busqueda li {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    background: #292929a1;
    height: 2rem;
    max-height: 7rem;
    width: 85%;
    margin: .5rem;
    text-align: center;
    border-radius: 5px;
    border: 2px;
    border-color: #313131b6;
    border-style: solid;
    cursor: pointer;
}

#resultados-busqueda li:hover {
    background: #242424b6;
    border-color: #2b2b2bd8;
    
}

footer {
    background-color: #333;
    color: #f2f2f2;
    text-align: center;
    padding: 20px;
}

.contenido{
    display: flex;
    flex-direction: column;
    justify-items: baseline;
    text-align: center;
    width: 100%;
    margin-top: 20px;
    margin-bottom: 20px;
}

.secciones{
    border-top: 2px solid #fff;
    margin: 2.5rem;
    padding: 2.5rem;
}

#selectLetra{
    min-width: 50px;
    max-width: 150px;
}

#selecCarpeta{
    max-width: 350px;
}