/*
 * Copyright (c) ToniSun
 */
:root {
    --white: white;
    --black: black;
    --h1-color: #d2d2d2;
    --bg-color: #232323;
    /* --btn_bg_color: steelblue; */
    --btn_bg_color: grey;
    --square_border: var(--black);
    --square_bg_color: whitesmoke;
    /* --stripe_bg: var(--white); */
    --stripe_bg: rgb(90, 84, 84);
}

body {
    background-color: var(--bg-color);
    margin: 0;
    font-family: sans-serif;
    font-weight: normal;
    text-transform: uppercase;
}



.venn {
    position: relative;
    height: 300px;
    width: 300px;
    margin: 0 auto;
    z-index:0;
}
  
i[class^='circle-'] {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 150px;
    mix-blend-mode: screen;
}
  
.circle-red {
    z-index: 1;
    left: 50%;
    margin-left: -100px;
    top: 0;
    background-color: rgb(255, 0, 0);
}

.circle-blue {
    z-index: 2;
    right: 0;
    bottom: 0;
    background-color: rgb(0, 0, 255);
}
  
.circle-green {
    z-index: 3;
    left: 0;
    bottom: 0;
    background-color: rgb(0, 255, 0);
}



h1 {
    color: var(--h1-color);
    line-height: 1.5;
    text-align: center;
    background-color: var(--bg-color);
    margin: 0;
    padding: 20px;
    text-shadow: 3px 3px var(--black);
}

#stripe {
    background: var(--stripe_bg);
    height: 30px;
    text-align: center;
    color: var(--black);
}

button {
    border: none;
    background: none;
    text-transform: uppercase;
    font-family: sans-serif;
    height: 100%;
    font-weight: 700;
    color: var(--btn_bg_color);
    letter-spacing: 1px;
    font-size: inherit;
    transition: all 0.5s;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    outline: none;
}

button:hover {
    color: var(--white);
    background: var(--btn_bg_color);
}

#message{
    display: inline-block;
    width: 20%;
}

#rgbCode {
    font-size: 200%;
}

.square {
    width: 30%;
    background-color: var(--square_bg_color);
    padding-bottom: 30%;
    margin: 3px;
    border-radius: 10%;
    border: 2px solid var(--square_border);
    transition: background 0.7s;
    -webkit-transition: background 0.7s;
    -moz-transition: background 0.7s;
    display: inline-block;
}


.container {
    margin: 20px auto;
    max-width: 600px;
    align-items: center;
    border-radius: 20px;
    padding: 20px;
}