.sidebar {
  background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
}

.nav-item {
  font-size: 0.9em;
  width:     100%;
}

.nav-item a {
  width: 100%;
  color: #d7d7d7;
  border-radius: 4px;
  height: 3rem;
  display: flex;
  align-items: center;
  line-height: 3rem;
}

.nav-item a.active {
  background-color: rgba(255,255,255,0.1);
  color: white;
}
 
.nav-item a:hover {
  background-color: rgba(255,255,255,0.2);
  color: white;
}


@media (min-width: 641px) {
  .sidebar {
    width:      250px;
    min-height: 100vh;
    position:   fixed;
  }
  .page-content {
    margin-left: 250px;
  }
}