body {
  background: #181a1b;
  color: #e0e0e0;
}
.container {
  background: #23272a;
  box-shadow: 0 2px 8px rgba(0,0,0,0.35);
}
#topbar button {
  color: #90caf9;
}
.group-box {
  background: #24292e;
  border: 1px solid #333;
}
ul#add-item-list li {
  color: #e0e0e0;
}
input[type="text"],
form button[type="submit"] {
  background: #23272a;
  color: #e0e0e0;
  border: 1px solid #444;
}
input[type="text"]::placeholder {
  color: #888;
}
.settings-modal {
  background: rgba(20,20,20,0.85);
}
.settings-modal-content {
  background: #23272a;
  color: #e0e0e0;
}
.settings-close {
  color: #bbb;
}
#settings-user-name {
  color: #b0b0b0;
}
#user-email {
  color: #666;
}

#sign-out-btn {
  background: #181a1b;
  color: #90caf9;
  border: 2px solid #1976d2;
}
#sign-out-btn:hover {
  background: #23272a;
}

.user-list-row {
  background: #111;
}