* {
    box-sizing: border-box;
}

body {
    background: #ccc;
    font-family: Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.vtt_main {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.vtt_main h1 {
    margin: 0 0 8px 0;
}

.vtt_main h2 {
    margin: 8px 0;
}

.vtt_main .vtt_content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.vtt_main .vtt_content > div {
    padding: 16px;
}

.vtt_main .vtt_content .info {
    max-width: 500px;
    font-size: 18px;
    margin-right: 20px;
}

.vtt_main .vtt_content .login {
    background: #999;
    border-radius: 5px;
}

.vtt_main .vtt_content .login input[type=text], .vtt_main .vtt_content .login input[type=password] {
    font-size: 16px;
    margin: 4px 0;
    padding: 4px;
    min-width: 250px;
}

.vtt_main .vtt_content .dashboard {
    background: #999;
    border-radius: 5px;
    min-width: 400px;
}

.vtt_main .vtt_content .dashboard table {
    border-collapse: collapse;
    margin: 4px 0;
}

.vtt_main .vtt_content .dashboard th, .vtt_main .vtt_content .dashboard td {
    padding: 4px 8px;
}

.vtt_main .vtt_content .dashboard thead tr, .vtt_main .vtt_content .dashboard tr:nth-child(even) {
    background: #aaa;
}

.vtt {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.vtt .vtt_break {
    flex-basis: 100%;
    height: 0;
}

.vtt .vtt_canvasContainer {
    display: flex;
    align-items: center;
}

.vtt .vtt_canvas {
    background: #333;
    display: block;
}

.vtt .vtt_legend {
    background: #666;
    color: #fff;
    font-family: Arial, sans-serif;
    font-size: 28px;
    padding: 8px;
    line-height: 28px;
}

.vtt .vtt_icon {
    display: inline-block;
    width: 28px;
    height: 28px;
    border-radius: 14px;
    margin-right: 8px;
    margin-bottom: 8px;
    vertical-align: middle;
}

.vtt_tools {
    margin: 8px;
}

.vtt_tools label {
    display: block;
    color: #333;
    font-size: 14px;
    margin-bottom: 10px;
}

.vtt_tools input[type=text], .vtt_tools input[type=number], .vtt_tools select {
    font-size: 16px;
    padding: 4px;
    margin: 4px 0;
    width: 200px;
}

.vtt_tools .radio {
    display: inline-block;
    border-radius: 5px;
    margin: 4px 0;
    overflow: hidden;
    vertical-align: middle;
}

.vtt_tools .radio label {
    position: relative;
    color: #000;
    display: inline-block;
    padding: 4px 8px;
    margin: 0;
    user-select: none;
    cursor: pointer;
    font-size: 16px;
}

.vtt_tools .radio input[type=radio] {
    display: none;
}

.vtt_tools .radio input[type=radio] + span:after {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background: #fff;
}

.vtt_tools .radio input[type=radio]:checked + span:after {
    background: #7df !important;
}

.vtt_tools .radio label:hover input[type=radio] + span:after {
    background: #ddd;
}