* {
    box-sizing: border-box;
    touch-action: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
}
body {
    user-select: none;
    background-color: black;
    width: 100vw;
    height: 100dvh;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1em;
}

#stats-layer {
    position: absolute;
    top: 0;
    left: 0;
    padding: 1em;
    height: 1em;
    color: #666;
    font-family: monospace;
    transition: opacity 250ms linear;
}

.transparent {
    opacity: 0;
}

#small-hearts-layer {
    pointer-events: none;
    user-select: none;
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.small-heart {
    user-select: none;
    position: absolute;
    animation-fill-mode: forwards;
    font-size: 0.5in;
    line-height: 0.5in;
    fill: red;
    width: 0.5in;
    cursor: default;
}

#big-heart {
    user-select: none;
    font-size: 1in;
    cursor: default;
    line-height: 1in;
    width: 1in;
    fill: red;
    transition: transform 0.25s linear, filter 0.5s ease-in;
}

#big-heart.tapped {
    transform: scale(1.1);
}

.grayscale {
    filter: grayscale(1);
}

@keyframes grow {
    0% {
        scale: 1;
    }

    50% {
        scale: 1.3;
    }

    100% {
        scale: 1;
    }
}

@keyframes float-1 {
    0% {
        scale: 0.2;
        opacity: 0;
    }

    30% {
        opacity: 1;
    }

    100% {
        translate: 20mm -50mm;
        rotate: 15deg;
        scale: 1;
        opacity: 0;
    }
}

@keyframes float-2 {
    0% {
        scale: 0.3;
        opacity: 0;
    }

    30% {
        opacity: 1;
    }

    100% {
        translate: -10mm -70mm;
        rotate: -10deg;
        scale: 1;
        opacity: 0;
    }
}

@keyframes float-3 {
    0% {
        scale: 0.4;
        opacity: 0;
    }

    40% {
        opacity: 1;
    }

    100% {
        translate: -10mm -90mm;
        rotate: -20deg;
        scale: 0.8;
        opacity: 0;
    }
}

@keyframes float-4 {
    0% {
        scale: 0.4;
        opacity: 0;
    }

    40% {
        opacity: 1;
    }

    100% {
        translate: 15mm -110mm;
        rotate: 30deg;
        scale: 0.7;
        opacity: 0;
    }
}