* {
    box-sizing: border-box;
}

/* Screen Configuration ----------------------------------------------------- */

html {
    height: 100%;
}

body {
    padding: 8px;
    background: url("../Bg_Math.jpg");
    background-size: cover;
    color: #ffffff;
    font-family: sans-serif;
    height: calc(100% - 16px);
    overflow-x: hidden !important;
}

div#env {
    border-radius: 5px;
}

canvas#painting-area {
    background-color: #2e5b34;
    border: 2px solid #888;
    box-shadow: 0px 2px 10px 4px black;
    border-radius: 5px;
    z-index: 8192;
    position: relative;
    width: 100%;
    z-index: 1;
}

/* Paint Options ------------------------------------------------------------ */

div#bar {
    color: #fff;
    height: 15%;
    display: flex;
    justify-content: center;
}

div#paint {
    display: flex;
    flex-direction: column;
    float: left;
    text-align: center;
    vertical-align: middle;
    position: absolute;
    z-index: 100;
    top: 0;
    left: 0;
}

#open-tools {
    width: 40px;
    height: 40px;
    top: 1px;
    position: relative;
    background: #222222;
    border-right: 2px solid black;
    border-bottom: 2px solid black;
    border-top: 2px solid #5a5a5a;
    border-left: 2px solid #5a5a5a;
    box-shadow: 0 2px 5px black;
}

#open-tools:hover #arrow-tools {
    transform: rotate(90deg);
    transition: 0.3s;
}

#tool-one:hover .tool-one,
#tool-two:hover .tool-two,
#tool-three:hover .tool-three {
    transform: rotate(360deg);
    transition: 0.7s;
}

.tool-one,
.tool-two,
.tool-three {
    transition: 0.7s;
}

#open-tools:hover #tools {
    left: -2px;
    transition: 0.5s;
}

#arrow-tools {
    margin-top: 10px;
    transition: 0.3s;
}

#tools {
    transition: 0.5s;
    position: relative;
    left: -80px;
    top: 10px;
}

#tool-one,
#tool-two,
#tool-three {
    width: 40px;
    height: 40px;
    transition: 0.5s;
}

#tool-one:hover,
#tool-two:hover,
#tool-three:hover {
    background: #010101;
    transition: 0.5s;
}

.active {
    transition: 0.5s;
    background: #000 !important;
}

div#paint button {
    background: #222222;
    color: #fff;
    box-shadow: 0 2px 5px black;
}

/* Text Input --------------------------------------------------------------- */

div#text {
    float: left;
    height: 100%;
    width: 60%;
}

div#text form {
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: nowrap;
}

textarea#input {
    float: left;
    width: 95%;
    height: 100%;
    background-color: #000;
    box-shadow: 0px 2px 10px 4px black;
    text-align: center;
    color: #888;
    border: 2px solid #888;
    font-family: monospace;
    font-weight: bold;
    border-right: none;
    outline: none;
}

button#button {
    float: left;
    margin-top: 1px;
    border: 2px solid #888;
    background-color: #000;
    color: #fff;
    font-weight: bold;
    transition: 0.2s;
}

button#button:hover {
    transition: 0.2s;
    background-color: #222222;
}

/* Footer ------------------------------------------------------------------- */

footer {
    padding: 2px;
    font-family: monospace;
    font-weight: bold;
    text-align: center;
    color: #fff;
    position: relative;
    bottom: -7px;
}

footer a {
    color: #f28aa7;
}

footer a:hover {
    color: #d06885;
}