.sidebar-settings-popup .sidebar-width-btn {
  background: white;
  color: #333;
  border: 2px solid #ddd;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
}

.sidebar-settings-popup .sidebar-width-btn.active {
  background: #007bff;
  color: white;
  border: 2px solid #007bff;
  box-shadow: 0 2px 8px rgba(0,123,255,0.3);
}

.sidebar-settings-popup .sidebar-width-btn[data-width="hidden"].active {
  background: #dc3545;
  color: white;
  border: 2px solid #dc3545;
  box-shadow: 0 2px 8px rgba(220,53,69,0.3);
}