@media (min-width: 576px) {
    .card-columns {
        column-count: 2;
    }
}

@media (min-width: 768px) {
    .card-columns {
        column-count: 3;
    }
}

@media (min-width: 992px) {
    .card-columns {
        column-count: 3;
    }
}

@media (min-width: 1200px) {
    .card-columns {
        column-count: 3;
    }
}

@media (min-width: 992px) {
  .brand-minimized .app-header.navbar .navbar-brand {
    width: 50px;
    background-color: #fff;
    background-image: url("../img/logo-symbol.png");
    background-size: 24px;
    border-bottom: 1px solid #c2cfd6; } 
 }
 
 .app-header.navbar {
  position: relative;
  -ms-flex-direction: row;
      flex-direction: row;
  height: 55px;
  padding: 0;
  margin: 0;
  background-color: #fff;
  border-bottom: 1px solid #c2cfd6; }
  .app-header.navbar .navbar-brand {
    display: inline-block;
    width: 155px;
    height: 55px;
    padding: 0.5rem 1rem;
    margin-right: 0;
    background-color: #fff;
    background-image: url("../img/logo.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 70px auto;
    border-bottom: 1px solid #c2cfd6; }
  .app-header.navbar .navbar-toggler {
    min-width: 50px;
    padding: 0.25rem 0; }
    .app-header.navbar .navbar-toggler:hover .navbar-toggler-icon {
      background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='%2329363d' stroke-width='2.25' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E"); }
  .app-header.navbar .navbar-toggler-icon {
    height: 23px;
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='%23536c79' stroke-width='2.25' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E"); }
  .app-header.navbar .navbar-nav {
    -ms-flex-direction: row;
        flex-direction: row;
    -ms-flex-align: center;
        align-items: center; }
  .app-header.navbar .nav-item {
    position: relative;
    min-width: 50px;
    margin: 0 !important;
    text-align: center; }
    .app-header.navbar .nav-item button {
      margin: 0 auto; }
    .app-header.navbar .nav-item .nav-link, .app-header.navbar .nav-item .dropdown-toggle {
      padding-top: 0;
      padding-bottom: 0;
      background: 0;
      border: 0; }
      .app-header.navbar .nav-item .nav-link .badge, .app-header.navbar .nav-item .dropdown-toggle .badge {
        position: absolute;
        top: 50%;
        left: 50%;
        margin-top: -16px;
        margin-left: 0; }
      .app-header.navbar .nav-item .nav-link > .img-avatar, .app-header.navbar .nav-item .dropdown-toggle > .img-avatar {
        height: 35px;
        margin: 0 10px; }
  .app-header.navbar .dropdown-menu {
    padding-bottom: 0;
    line-height: 1.5; }
  .app-header.navbar .dropdown-item {
    min-width: 180px; }