#ef-editor-wrapper {
  display: flex;
  height: 900px;
  background: #f5f5f5;
  overflow: hidden;
}

#sidebar {
  width: 300px;
  background: #fff;
  border-right: 1px solid #ddd;
  padding: 15px;
  overflow-y: auto;
}

#canvas-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #eee;
}

#canvas {
  border: 1px solid #ccc;
  background: #fff;
}

.control-group {
  margin-bottom: 15px;
}

.control-group button,
.control-group input,
.control-group select {
  width: 100%;
  padding: 6px;
  margin-bottom: 5px;
  box-sizing: border-box;
}

button {
  background: #007bff;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
button:hover {
  background: #0056b3;
}