.hr-telefonia {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
}
.card .card-header h3,
.card .card-header .card-title {
    font-size: 18px;
    font-weight: 500;
    margin: 0;
}
.card .card-header[aria-expanded="false"] .icono {
    position: relative;
}

.card .card-header[aria-expanded="false"] .icono:before {
    color: #000;
    border: none;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    content: "\f0fe";
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
}
.card .card-header[aria-expanded="true"] .icono:before {
    color: #000;
    border: none;
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    content: "\f146";
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
}
.btn.btn-outline-dark{
    border-radius: 5px;
    min-height: 30px;
    min-width: 30px;
    line-height: 20px;
}