:root {
    --first: #6ab7ff;
    --second: #3a5f8f;
    --third: #1a2332;
    --green: #33a350;
    --background: #16171c;
    --dim: #0006;
}

html {
    color-scheme: dark;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background: var(--background);
}

#menuOverlay {
    position: fixed;
    inset: 0;
    align-items: center;
    justify-content: center;
    background: var(--dim);
    flex-direction: column;
    z-index: 10;
}

#menuOverlay #float {
    background: var(--third);
    border-radius: 1em;
    padding: 18px;
    max-width: 90vw;
}

#game {
    width: 100vw;
    height: 100vh;
    position: relative;
}

.target {
    border-radius: .5;
    position: absolute;
    user-select: none;
    -webkit-user-drag: none;
    cursor: crosshair;
    animation: spawnAnim .3s;
}

.target.hit {
    pointer-events: none;
    animation: hitAnim .3s;
}

@keyframes spawnAnim {
    0% {
        transform: scale(.5);
        opacity: 0.25;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes hitAnim {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(.3);
        opacity: 0;
    }
}

section {
    display: flex;
    flex-direction: row;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

div h2 {
    max-width: fit-content;
    margin: auto;
}

h2 {
    color: var(--first);
}

p, h5, small {
    margin: 0;
}

h5, small {
    opacity: .5;
}

#score {
    -webkit-text-stroke: 6px #000;
    paint-order: stroke fill;
}

#menuOverlay h4 {
    margin: 10px;
    text-align: center;
}

button {
    display: block;
    text-align: center;
    background: var(--second);
    border-radius: 1em;
    padding: 2px 8px;
    border: transparent;
    font-size: inherit;
    cursor: pointer;
}

button.mode {
    width: 100%;
    margin: 8px 0;
    color: #fff;
    cursor: pointer;
    transition: all 0.2s;
}

button.mode.selected {
    background: #4a7faf;
    border-color: #7abfff;
}

.setting {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 6px 0;
    padding: 6px 8px;
    background: var(--dim);
    border-radius: .5em;
    gap: .5em;
}

.setting select, .setting input {
    padding: 4px 8px;
    background: var(--third);
    border-radius: .25em;
    border: transparent;
    color: #fff;
}

.setting select {
    width: 6.25em;
}

.setting input {
    width: 3.25em;
}

button#start {
    background: var(--green);
    margin-top: .5em;
    width: 100%;
}

header {
    position: fixed;
    z-index: 5;
    pointer-events: none;
    text-shadow: 2px 2px 0 var(--dim);
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

header * {
    padding: 0;
    margin: 0;
}

#noKeyEsc {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 5;
    padding: 6px 10px;
    border-radius: 8px;
    background: var(--second);
    color: #fff;
    border: none;
    line-height: 1;
}

#menuOverlay small {
    --padding: 5px;
    font-weight: 400;
    position: fixed;
    z-index: 11;
    opacity: .5;
    transition: opacity .25s;
    bottom: var(--padding);
}

#menuOverlay small:hover {
    opacity: 1;
}

#src {
    left: var(--padding);
}

#cred {
    right: var(--padding);
}

#src a {
    text-decoration: none;
}