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

body {
    font-family: "Raleway", sans-serif;
    background-color: #242424;
    color: #fff;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

main {
    width: 430px;
    height: 932px;
    background-color: #151515;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 52px;
    position: relative;
    overflow: hidden;
}

span {
    font-size: 30px;
    padding: 5px;
    text-align: center;
    margin: 393px 0 100px;
}

i {
    font-size: 24px;
}

main .controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 321px;
    gap: 82px;
}

.hue, .glow, .contrast {
    display: flex;
    align-items: center;
    gap: 16px;
}

.hue>div, .glow>div, .contrast>div {
    display: flex;
    align-items: center;
    border-radius: 12px;
    background-color: #fff;
}

.hue>div {
    background: linear-gradient(to right, red, yellow,lime, aqua, blue, magenta, red);
}

input[type="range"] {
    width: 281px;
    height: 5px;
    appearance: none;
    background-color: transparent;
}

.hue>div>input[type="range"]::-webkit-slider-thumb, 
.glow>div>input[type="range"]::-webkit-slider-thumb, 
.contrast>div>input[type="range"]::-webkit-slider-thumb {
    width: 18px;
    height: 18px;
    border: 3px solid #fff;
    background-color: transparent;
    appearance: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.glow>div>input[type="range"]::-webkit-slider-thumb, 
.contrast>div>input[type="range"]::-webkit-slider-thumb {
    background-color: #151515;
    border: 3px solid #fff;
}

main .visualization {
    display: flex;
    width: 846px;
    height: 846px;
    background-color: red;
    border-radius: 50%;
    box-shadow: 0px 0px 53px 13px red;
    position: absolute;
    top: -423px;
}