.react-flow__controls {
  background: #252525;
  border-radius: 6px;
  border: 1px solid #333333;
}

.react-flow__controls-button {
  background: #252525;
  border-bottom: 1px solid #333333;
  fill: #666666;
  padding: 4px;
}

.react-flow__controls-button:hover {
  background: #333333;
  fill: #ffffff;
}

.react-flow__controls-button:last-child {
  border-bottom: none;
}

.react-flow__node {
  border-radius: 8px;
  border: 1px solid #333333;
  background: #252525;
}

.react-flow__handle {
  background: #333333;
  border: 2px solid #666666;
  width: 8px;
  height: 8px;
}

.react-flow__handle:hover {
  background: #666666;
}

.react-flow__edge-path {
  stroke: #666666;
  stroke-width: 2;
}

.react-flow__controls {
  box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.08);
}

.react-flow__controls button {
  background: #252525;
  border-bottom: 1px solid #333333;
  box-sizing: content-box;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 16px;
  height: 16px;
  cursor: pointer;
  user-select: none;
  padding: 5px;
}

.react-flow__controls button:hover {
  background: #333333;
}