@font-face {
    font-family: 'mplus-1m';
    font-weight: normal;
    src: url('fonts/mplus-1m-regular-webfont.woff2') format('woff2'),
         url('fonts/mplus-1m-regular-webfont.woff') format('woff');
}

*,
*::before,
*::after {
    box-sizing: border-box
}

html,
body {
    min-height: 100vh;
    padding: 0;
    margin: 0
}

body {
    font-family: 'mplus-1m', monospace;
    line-height: 1.5;
    font-size: 18px;
    color: #444;
}

h1 {
    font-size: 18px;
    color: hsl(240, 100%, 70%);
    display: inline-block;
    border-bottom: 2px solid currentcolor;
    margin: 0
}

p {
    margin: 18px 0;
}

p:first-of-type {
    margin-top: 24px;
}

p:last-of-type {
    margin-bottom: 24px
}

button {
    background: hsl(240, 100%, 70%);
    border-radius: 4px;
    border: none;
    padding: 4px 8px;
    color: #fff;
    line-height: 24px;
    font-family: inherit;
    font-size: inherit;
}

button:hover {
    transform: translateY(-1px);
    cursor: pointer
}

input {
    border: none;
    border-bottom: 2px solid hsl(240, 100%, 70%);
    color: hsl(240, 100%, 70%);
    background: none;
    font-family: inherit;
    font-size: inherit;
    height: 30px;
    line-height: 24px;
    margin-right: 8px;
    width: 120px;
    text-align: center;
}

#welcome-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 640px;
    max-width: 100%;
    padding: 48px;

    z-index: 20;
    opacity: 1;
    transition: opacity .2s ease;
}

#welcome-message.hidden {
    pointer-events: none;
    opacity: 0;
}

.container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 640px;
    max-width: 100%;
    padding: 48px;
    text-align: center;
}

.capture-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
}

canvas#result {
    /* needs position: absolute so it's rendered above the video */
    position: absolute;
    z-index: 10;
}

video#capture {
    max-width: 100%;
    height: auto;
}

canvas#result,
video#capture {
    transform: scale(-1, 1);
    border-radius: 4px;
}