* {
    margin: 0;
    padding: 0;
}

:root {
    font-size: min(5px, 1vw, 1vh);
}

body {
    position: relative;
    background-color: #000;
    overflow: hidden;
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    touch-action: none;
}

canvas {
    width: 100dvw;
    height: 100dvh;
}

#info {
    position: absolute;
    top: 3rem;
    left: calc(50vw - 8rem);
    width: 16rem;
    background-color: #0009;
    border-radius: 3rem;
    font-size: 3rem;
    font-family: sans-serif;
    color: #fff;
    padding: 2rem;
    text-align: center;
    opacity: 0;
}

#opener {
    position: absolute;
    top: 3rem;
    left: 3rem;
    background-color: #0009;
    border-radius: 2rem;
    padding: 1rem;
    transition: opacity 0.3s ease-out, translate 0.3s ease-out;
    cursor: pointer;
    translate: -200%;
    opacity: 0;

    span {
        color: #fff;
        font-size: 8rem;
    }
}

#panel {
    position: absolute;
    top: 3rem;
    left: 3rem;
    font-family: sans-serif;
    background-color: #0009;
    border-radius: 5rem;
    padding: 3rem;
    transition: opacity 0.3s ease-out, translate 0.3s ease-out;

    display: grid;
    place-items: center;

    h1 {
        width: 100%;
        color: #ccc;
        margin-bottom: 1rem;
        font-size: 3rem;
        font-weight: bold;
    }

    select {
        appearance: none;
        background-color: #0000;
        color: #fff;
        font-size: 4rem;
        padding: 1rem 0;
        margin-bottom: 3rem;
        border: #fff solid 0.4rem;
        border-radius: 5rem;
        outline: 0;
        width: 40rem;
        text-align: center;
        text-align-last: center;
        cursor: pointer;

        &::picker(select) {
            appearance: base-select;
        }
    }

    #apply {
        font-size: 4rem;
        color: #fff;
        border-radius: 3rem;
        border: #fff solid 0.4rem;
        cursor: pointer;
        width: fit-content;
        margin-top: 2rem;
        padding: 0.5rem 3rem 1rem;
    }
}