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

body{

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


}

body.on{

    background: radial-gradient(#555 , #111);


}

.bulb {

    position: relative;
    width: 80px;
    height: 80px;
    background-color: #444;
    border-radius: 50%;
    z-index: 2;

}
body.on .bulb{

    background: #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,

}

.bulb::before{

    content: '';
    position: absolute;
    left: 22.5px;
    top: -50px;
    height: 80px;
    width: 35px;
    background-color: #444;
    border-top: 30px solid #000;
    border-radius: 10px;

}

body.on .bulb::before{
    background-color: #fff;

}



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

}

.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;

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

}
.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;

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

}


.wire{

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

}
.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;


}

.switch .btn{

    position: relative;
    height: 40px;
    width: 25px;
    background: linear-gradient(#777 , #fff , #777);
    border-radius: 6px;
    border: 3px solid #000;
    cursor: pointer;

}

.switch .btn::before{

    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 85%;
    width: 100%;
    background: linear-gradient(#fff, #fff);
    border-radius: 4px;

}

.on .switch .btn::before{

    top: 15%;


}
#audio{

    display: none;


}