style.css

@keyframes fade {
	0%, 100% {
		opacity: 1;
		stroke-opacity: 1;
	}
	50% {
		color: 0;
		stroke-opacity: 0;
	}
}

:root {
	--size: .5;
	--background: #1B1B1B;
	--hard-background: #111111;
	--text-color: #FBFBFB;
	--stroke: skyblue;
	--fill: violet;
}

html, a {
	color: var(--text-color);
	font-size: clamp(11px, 2.5vw, 15px);
	max-height: 100vh;
}

body {
	height: 100vh;
	margin: 0;
	overflow: hidden;
}

body > nav {
	display: none;
	translate: 0 -100%;
}

svg#view {
	background-color: var(--background);
	display: block;
	fill: var(--text-color);
	fill: none;
	height: 100vh;
	stroke: var(--text-color);
	stroke: none;
	stroke-width: calc(8 * var(--size));
	touch-action: none;
	width: 100vw;
}

text {
	fill: var(--text-color);
	stroke: none;
}

:not(label):has(> input:is([type="checkbox"],[type="radio"]):not(:checked)) {
	display: none !important;
}

/* :not(label):has(> :checked) {
	display: revert-layer !important;
} */

#container {
	height: 100%;
	position: relative;
}

user-interface > section {
	margin: 10px;
	/* max-height: 50vmin; */
	max-width: 50vmin;
	overflow: hidden;
	position: absolute;
	z-index: 0;
}

user-interface .bottom { bottom: 0; }
user-interface .left { left: 0; }
user-interface .right { right: 0; text-align: right; }
user-interface .top { top: 0; }

details[name="toolbar"] > .toolbar {
	display: grid;
	overflow: auto;
	max-height: 50vmin;
}

details > summary.button, label.button {
	line-height: 3rem;
}

details > summary.show-prefix::before { content: "Show " }
details[open] > summary.show-prefix::before { content: "Hide " }
details > summary.show-suffix::after { content: " (open)" }
details[open] > summary.show-suffix::after { content: " (close)" }

select > option {
	background-color: var(--background);
}

#container user-interface section.left.top .toolbar {
	display: grid;
	overflow: auto;
	max-height: 50vmin;
}

#container user-interface section.bottom.left .option {
	-webkit-user-select: none;
	display: block;
	font-size: smaller;
	height: 3rem;
	line-height: 3rem;
	overflow: hidden;
	padding: 0 1rem;
	position: relative;
	text-align: center;
	user-select: none;
}

#container user-interface section.bottom.left .option.disabled, .disabled, :disabled, [disabled] {
	opacity: .5;
	pointer-events: none;
}

#container user-interface section.bottom.left .option input {
	left: 0;
	pointer-events: none;
	position: absolute;
	top: 0;
	visibility: hidden;
}

#container user-interface button, #container div#layers button {
	background-color: transparent;
}

#container .overlay {
	align-items: center;
	border-radius: 1rem;
	box-shadow: inset 0px 5px 8px -10px #80808040;
	inset: 0;
	overflow: hidden;
	place-content: center;
	position: absolute;
}

#container div#appearance-overlay {
	background-color: hsl(0deg 0% 50% / 4%);
    backdrop-filter: blur(4px);
	display: flex;
	flex-direction: column;
	inset: 15%;
	padding: 2rem;
	z-index: 20;
}

#container div#settings {
	display: flex;
	border-radius: 0;
	background-color: hsl(0deg 0% 50% / 4%);
	backdrop-filter: blur(2em) brightness(0.8);
	z-index: 40;
}

#container div#settings > nav {
	align-items: center;
	border-right: 1px solid hsl(0 0% 50% / 5%);
	display: flex;
	flex-direction: column;
	justify-content: flex-start;
	margin-right: 2rem;
	min-height: 40%;
	min-width: 10%;
}

#container div#settings > nav > label {
	text-align: left;
}

#container div#settings > section {
	align-items: flex-start;
	display: flex;
	justify-content: flex-start;
	min-height: 40%;
	min-width: 40%;
}

#container div#settings > footer {
	bottom: 1rem;
	color: hsl(0 0% 50% / 50%);
	font-size: 0.75rem;
	pointer-events: none;
	position: fixed;
}

#container div#layers {
	background-color: hsl(0deg 0% 50% / 4%);
	backdrop-filter: blur(4px);
	display: flex;
	flex-direction: column;
	inset: 15%;
	padding: 2rem;
	z-index: 20;
}

#container div#layers div#layer-container {
	align-items: center;
	display: grid;
	grid-auto-rows: min-content;
	grid-gap: 0.4rem;
	grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
	overflow: auto;
	position: relative;
	width: -webkit-fill-available;
}

/* Automatic layer counter >>>
#container div#layers .layer {
	counter-increment: layer;
}

#container div#layers .layer > div:nth-child(1):after {
	content: counter(layer);
} */

#container div#layers .layer {
	-webkit-user-select: none;
	align-items: center;
	border-radius: 10px;
	display: flex;
	flex-direction: column;
	overflow: hidden;
	padding: 0.75rem 1rem;
	place-content: center;
	position: relative;
	user-select: none;
}

#container div#layers .layer::before {
	content: "";
	opacity: .3;
	inset: 0;
	display: flex;
	overflow: hidden;
	position: absolute;
	pointer-events: none;
	background-color: var(--hard-background);
	z-index: -1;
}

#container div#layers .layer:not(.selected):hover::before {
	opacity: .5;
	transition: background-color 100ms;
}

#container div#layers .layer.selected::before {
	opacity: .9;
}

#container div#layers .layer input.selector {
	height: 1rem;
	padding: 0;
	width: 2rem;
}

#container div#layers .layer .option {
	align-items: center;
	display: flex;
	font-size: small;
	justify-content: center;
	overflow: hidden;
	position: relative;
}

#container div#layers .layer .option input {
	pointer-events: none;
}

#container div#layers .layer .options {
	/*display: none;*/
	display: flex;
	flex-direction: column;
	margin-top: 10px;
}

.button {
	font-size: clamp(11px, 2.5vmin, 13px);
	max-width: 100%;
	max-width: -webkit-fill-available;
}

.highlighted {
	animation: fade 2s ease-in-out infinite;
}

#changes {
	backdrop-filter: blur(0.5rem) brightness(0.5);
	height: fit-content;
	padding: 0.5rem 2rem;
	margin: auto;
	width: fit-content;
}

context-menu {
	display: flex;
	padding: 1rem;
	position: absolute;
	z-index: 1000;
}