:root {
    --size-base: 0.6rem;
    --border-color: #5C1104;
    --number-padding: calc(2 * var(--size-base));
    --color: #555;
    --error-color: #ddd;
}

body {
    background-color: black;
    color: var(--color);
    font: 16px/120% Verdana;
}

.is-hidden {
    display: none !important;
}

a {
    color: #20b2aa
}

input {
    accent-color: #232323;
}

.centered {
    display: block;
    margin: 0 auto;
}

.has-cursor-pointer {
    cursor: pointer;
}

.join {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    place-content: center;
    text-align: center;
    height: 40vh;
}

    .join > * {
        margin-top: 2rem;
    }

    .join input[type=text] {
        height: 2.5rem;
        width: 15rem;
        font-size: 1.5rem;
        text-align: center;
        display: inline-block;
        margin: 0 auto;
    }

    .join select {
        padding: 0.5rem;
        font-size: calc(2 * var(--size-base));
        border: 1px solid #ccc;
        border-radius: 0;
        max-width: 90vw;
    }


.error {
    color: var(--error-color);
}

.player-joined {
    animation-duration: 1s;
    animation-name: flash;
    animation-iteration-count: 2;
}

@keyframes flash {
    from {
        background: #777;
    }

    to {
        background: transparent;
    }
}