* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
}

.toggle-btn {
  position: relative;
  height: 150px;
  width: 300px;
  background: #ddd;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.4s ease;
}

.toggle-btn.active {
  background: #7d2ae8;
}

.toggle-btn .icon {
  position: absolute;
  top: 50%;
  left: 20px;
  transform: translateY(-50%);
  height: 120px;
  width: 120px;
  font-size: 70px;
  color: #999;
  background-color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.1);
}

.toggle-btn.active .icon {
  left: calc(100% - 120px - 20px);
  color: #7d2ae8;
}