@import 'https://fonts.googleapis.com/css?family=Press+Start+2P';
* {
    margin: 0;
    padding: 0;
    border: 0;
}

body {
    background-color: black;
    color: white;
    font-family: 'Press Start 2P', sans-serif;
    font-size: 24px;
}

html.isMobile .game__title,
html.isMobile .control__container {
    display: none;
}

.students {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    z-index: 10;
}

.students__divider {
    margin-top: 1em;
    margin-bottom: 0.5em;
    text-transform: uppercase;
}

.students__link {
    padding: 0.5em 0;
    position: relative;
    display: inline-block;
    text-align: center;
    line-height: 1.33;
    color: white;
    font-weight: bold;
}

.students__link:hover {
    animation: pulseColor 1s linear infinite;
}

.game__title {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    top: 0.5em;
    z-index: 999;
}

.alert__container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.game__alert {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    line-height: 1.25;
    background: white;
    color: black;
}

.game__alert--click {
    display: none;
}

.game__alert--error {
    display: none;
}

.game__container {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.control__container {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    bottom: 0.5em;
    z-index: 999;
}

.control {
    margin: 0 0.5em;
    padding: 0.5em;
    background-color: white;
    text-align: center;
    color: black;
    text-decoration: none;
    text-transform: uppercase;
}

.control__counter {
    display: none;
}

.control--lrg {
    min-width: 7.5em;
}

.control--sml {
    min-width: 2em;
}

a.control:active {
    transform: translateX(1px) translateY(1px);
}

@keyframes pulseColor {
    0% {
        color: hsl(0, 100%, 50%);
    }
    25% {
        color: hsl(90, 100%, 50%);
    }
    50% {
        color: hsl(180, 100%, 50%);
    }
    75% {
        color: hsl(270, 100%, 50%);
    }
    100% {
        color: hsl(360, 100%, 50%);
    }
}

@keyframes pulseBG {
    0% {
        background: hsl(0, 100%, 50%);
    }
    25% {
        background: hsl(90, 100%, 50%);
    }
    50% {
        background: hsl(180, 100%, 50%);
    }
    75% {
        background: hsl(270, 100%, 50%);
    }
    100% {
        background: hsl(360, 100%, 50%);
    }
}