#wrapper {
  overflow-x: hidden;
}

/* SIDEBAR */
#sidebar-wrapper {
  min-height: 100vh;
  width: 250px;
  margin-left: -15rem;
  background: linear-gradient(180deg, #1f1f3a, #121225);
  box-shadow: 5px 0 20px rgba(0,0,0,0.4);
  transition: all 0.3s ease;
}

/* nagłówek */
#sidebar-wrapper .sidebar-heading {
  padding: 20px;
  font-size: 1.4rem;
  color: #fff;
  text-align: center;
  letter-spacing: 1px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* lista */
#sidebar-wrapper .list-group {
  width: 100%;
}

/* linki */
#sidebar-wrapper .list-group-item {
  background: transparent;
  border: none;
  color: #bbb;
  padding: 15px 20px;
  transition: 0.25s;
}

/* hover */
#sidebar-wrapper .list-group-item:hover {
  background: rgba(255,255,255,0.05);
  color: #fff;
  padding-left: 25px;
}

/* aktywny element */
#sidebar-wrapper .list-group-item.active {
  background: linear-gradient(90deg, #03a9f4, #00e5ff);
  color: #fff;
  border-radius: 0 20px 20px 0;
}

/* CONTENT */
#page-content-wrapper {
  min-width: 100vw;
  background: transparent;
}

/* toggle */
#wrapper.toggled #sidebar-wrapper {
  margin-left: 0;
}

/* DESKTOP */
@media (min-width: 768px) {
  #sidebar-wrapper {
    margin-left: 0;
  }

  #page-content-wrapper {
    min-width: 0;
    width: 100%;
    padding: 20px;
  }

  #wrapper.toggled #sidebar-wrapper {
    margin-left: -15rem;
  }
}