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

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #222;
}

body.on {
  background: radial-gradient(#555, #111);
}

.wire {
  position: absolute;
  left: calc(50% - 2px);
  bottom: 50%;
  width: 4px;
  height: 60vh;
  background: #000;
  z-index: 1;
}

.bulb {
  position: relative;
  width: 80px;
  height: 80px;
  background: #444;
  border-radius: 50%;
  z-index: 2;
}

.bulb:before {
  content: "";
  position: absolute;
  left: 22.5px;
  top: -50px;
  width: 35px;
  height: 80px;
  background: #444;
  border-top: 30px solid #000;
  border-radius: 10px;
}

body.on .bulb::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: 50%;
  filter: blur(40px);
}

body.on .bulb {
  background-color: #fff;
  box-shadow: 0 0 50px #fff, 0 0 100px #fff, 0 0 150px #fff, 0 0 200px #fff,
    0 0 250px #fff, 0 0 300px #fff, 0 0 350px #fff;
}

body.on .bulb::before {
  background: #fff;
}

body.on .bulb span:nth-child(1) {
  box-shadow: 20px 20px 0 10px #fff;
}

body.on .bulb span:nth-child(2) {
  box-shadow: -20px 20px 0 10px #fff;
}

.bulb span:nth-child(1) {
  position: absolute;
  top: -16px;
  left: -4px;
  display: block;
  width: 30px;
  height: 30px;
  background: transparent;
  transform: rotate(342deg);
  border-bottom-right-radius: 40px;
  box-shadow: 20px 20px 0 10px #444;
}

.bulb span:nth-child(2) {
  position: absolute;
  top: -16px;
  right: -4px;
  display: block;
  width: 30px;
  height: 30px;
  background: transparent;
  transform: rotate(17deg);
  border-bottom-left-radius: 40px;
  box-shadow: -20px 20px 0 10px #444;
}

.switch {
  position: absolute;
  bottom: 50px;
  right: 50px;
  width: 80px;
  height: 80px;
  background: linear-gradient(#eee, #ccc, #eee);
  border: 3px solid #000;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: gray 0px 20px 30px -10px;
}

.switch .btn {
  position: relative;
  width: 25px;
  height: 40px;
  background: linear-gradient(#777, #fff, #777);
  border-radius: 6px;
  border: 2px solid #000;
  cursor: pointer;
}

.switch .btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 85%;
  background: linear-gradient(#fff, #fff);
  border-radius: 4px;
}

.on .switch .btn::before {
  top: 15%;
}

#audio {
  display: none;
}