* {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    box-sizing: border-box;
}

body {
    width: 100vw;
    height: 100vh;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    grid-template-areas: "header" "main" "footer";
}

body > header {
    padding: 5px;
    grid-area: header;
    background-color: goldenrod;
}

main {
    grid-area: main;
    overflow: hidden;

    display: grid;
    grid-template-columns: 300px 1fr;
    grid-template-rows: 1fr;
    justify-items: center;
    align-items: center;
}

nav {
    width: 100%;
    height: 100%;
    padding: 10px;
    border-right-style: double;
    border-color: goldenrod;
    background-color: #cecece;
}

nav > header {
    margin-bottom: 10px;
}

nav > div {
    padding: 10px;
}

nav label {
    display: inline-block;
    width: 190px;
}

nav input[type=range] {
    width: 50px;
}

section {
    width: 100%;
    height: 100%;
}

footer {
    grid-area: footer;
    text-align: center;
    background-color: goldenrod;
}

.spinner-container {
    position: relative;
    left: 25%;
    top: 25%;
    width: 50%;
    height: 50%;
    /*background-color: #00ff0090;*/
}

.spinner-container svg {
    width: 100%;
    height: 100%;
}


/* SVG - STYLES */

.spinner-container svg line {
    stroke: red;
    stroke-width: 2px;
}

.spinner-container svg text {
    dominant-baseline: middle;
    text-anchor: end;
    font-size: 13px;
    font-family: Bahnschrift;
    font-weight: bold;
    user-select: none;
    cursor: default;
}

.numbers {
    clip-path: url(#clippath);
}

.spinner-container svg .btn {
    cursor: pointer;
}

.spinner-container svg .btn rect {
    fill: #ff000060;
    stroke: #ff0000;
    stroke-width: 0.05;
}

.hide {
    display: none;
}