:root {
	--colour_black: #000000;
	--colour_grey: #333333;
	--colour_white: #ffffff;
}

html,
body {
	padding: 0;
	margin: 0;

	background: var(
		--colour_black
	);

	font-family: Monaco, monospace;

	color: var(
		--colour_white
	);
}

*,
*::before,
*::after {
	box-sizing: border-box;

	text-align: center;
}

input {
	padding: 0.25rem 0.5rem;

	border: none;
	border-radius: 5px;

	background: var(
		--colour_grey
	);

	box-shadow: inset 0px 0px 1px 1px var(
		--colour_black
	);

	color: inherit;
}

button {
	padding: 0.5rem 1rem;

	border: 1px solid var(
		--colour_black
	);
	border-radius: 5px;

	background: var(
		--colour_grey
	);

	color: inherit;

	cursor: pointer;
}

canvas {
	width: 100%;
	height: 100%;
}

canvas.pointer {
	cursor: pointer;
}

a {
	position: absolute;
	top: 0.1dvh;
	left: 0.5em;

	text-decoration: none;

	color: var(
		--colour_white
	);

	font-size: 3.6dvh;
}

#settings {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;

	background: rgba(0, 0, 0, 0.3);

	opacity: 0;

	transition: opacity ease-in-out 250ms;

	pointer-events: none;
}

#menu_settings {
	position: absolute;
	top: 50%;
	left: 50%;

	display: flex;
	flex-direction: column;

	width: 400px;
	max-width: 95%;

	padding: 1rem;

	background: rgba(0, 0, 0, 0.4);

	border-radius: 5px;

	box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.6);

	color: #efefef;
	font-size: 0.75rem;

	backdrop-filter: blur(20px);

	transform: translate(-50%, -50%);

	opacity: 0;

	transition: opacity ease-in-out 250ms;

	pointer-events: none;
}

#settings.active,
#settings.active #menu_settings {
	opacity: 1;

	pointer-events: all;
}

#menu_settings h1 {
	font-size: 1rem;
}

#menu_settings h2 {
	font-size: 0.85rem;

	margin: 0;
	margin-top: 2rem;
	margin-bottom: 0.5rem;
}

#menu_settings label {
	display: flex;
	align-items: center;
	justify-content: space-between;

	margin-bottom: 0.5rem;
}

#menu_settings label * :global {
	width: 4rem;
	margin-left: 1rem;
}

#menu_settings label input[type='checkbox'] {
	width: unset;
	margin-left: 2.5rem;
	margin-right: 1.6rem;
}

#menu_settings button {
	margin-top: 0.5rem;
}