@charset "UTF-8";

:root {
	font-size: 13pt;
	
	--main-font: "Noto Sans", "Noto Sans Math", "Noto Sans Symbols", "Noto Sans Symbols 2", "Noto Sans Symbols2", sans-serif;
	--code-font: "Noto Sans Mono", monospace;
	
	--highlight1: #9f9f9d;
	--highlight2: #bebeba;
	--highlight3: #deded6;
	
	--subtle: dimgrey;
	
	--form-bg: white;
	--form-shadow: firebrick;
	
	--top-link-size: 3em;
	
	--s-gap: 3em;
	--h-gap: 0.5em;
	--p-gap: 1.25em;
	
	--max-w: 1600px;
}

body {
	hyphens: auto;
	line-height: 1.4;
}

main {
	padding-block-end: calc(1.2 * var(--top-link-size));
}

article {
	margin-block-end: calc(1.5 * var(--s-gap));
	
	& > nav {
		margin-block: var(--s-gap);
	}
}

section {
	margin-block-end: var(--s-gap);
}

h1, h2, h3 {
	margin-block-end: var(--h-gap);
}

h1 {
	font-size: 2.25em;
}

h2 {
	font-size: 1.85em;
}

h3 {
	font-size: 1.5em;
}

p {
	text-align: justify;
}

table p {
	text-align: start;
}

.file-name, .prop {
	hyphens: manual;
}

.doc {
	white-space: nowrap;
}

article a[href^="http"]:not(.noextsym)::after {
	content: " ↗︎";
	font-size: 0.5em;
	vertical-align: super;
	font-family: var(--main-font);
	font-weight: normal;
	font-style: normal;
	white-space: pre;
}

/* ======== Lists ======== */

ul, ol, dl {
	list-style-position: inside;
	padding-inline: 2em 1em;
	
	&:not(:last-child) {
		margin-block-end: calc(1.5 * var(--p-gap));
	}
}

:is(ul, ol, dl) :is(ul, ol, dl) {
	padding-inline-end: 0;
	padding-block-start: var(--p-gap);
}

:is(p, li, dd):not(:last-child) {
	margin-block-end: var(--p-gap);
	
	footer & {
		--p-gap: 0.5em;
	}
}

dt {
	font-weight: bold;
	margin-block-end: calc(0.15 * var(--p-gap));
}

dd {
	padding-inline-start: 1.5em;
}

:is(ul, ol, dl).long {
	column-count: 2;
}

nav ul {
	list-style-type: var(--bullet);
	
	--p-gap: 0.75em;
	--bullet: "☛ ";
	
	&.subpage-refer {
		--bullet: "☞ ";
	}
	
	&.back {
		--bullet: "☜ ";
	}
	
	&:has(+ &) {
		margin-block-end: calc(1.5 * var(--p-gap));
	}
}

nav > ul {
	font-size: 1.1em;
}

/* ======== Tables ======== */

.table-container {
	overflow-x: auto;
	padding-block-start: calc(0.25 * var(--s-gap));
	margin-block-end: var(--p-gap);
}

table, th, td {
	border: 1px solid var(--text);
}

table {
	border-collapse: collapse;
	margin-inline: auto;
}

th, td {
	padding-block: 0.3em;
	padding-inline: 0.4em;
	vertical-align: middle;
}

th {
	font-weight: bold;
	text-align: center;
	background-color: var(--highlight1);
}

tbody th {
	background-color: var(--highlight2);
}

th.major {
	text-transform: uppercase;
}

/* ======== Forms ======== */

button {
	color: var(--text);
	padding: 0.1em 0.3em;
	border: 1px solid var(--text);
	border-radius: 0.15em;
	background-color: var(--form-bg);
}

button:hover {
	background-color: var(--highlight2);
}

button:active {
	background-color: var(--highlight1);
}

input[type="text"], input[type="number"] {
	border: 1px solid var(--text);
	padding: 0.15em 0 0.15em 0.2em;
	box-shadow: 0px 0px 1px 0px var(--form-shadow) inset;
	background-color: var(--form-bg);
	color: var(--text);
}

select {
	border: 1px solid var(--text);
	padding: 0.1em 0.2em;
	color: var(--text);
	background-color: var(--highlight3);
}

/* ======== Unicode Display ======== */

.code, .char, .name, .emoji {
	hyphens: manual;
}

.code {
	font-family: var(--code-font);
	font-variant-numeric: slashed-zero;
}

.char {
	white-space: pre;
	
	&:not([data-sc]) {
		font-family: var(--allofemanubis);
	}
}

bdi.char {
	font-size: 1.2em;
}

.name {
	font-variant: small-caps;
	font-variant-numeric: slashed-zero oldstyle-nums;
}

.emoji {
	font-family: emoji;
	font-variant-emoji: emoji;
}

.private-use {
	color: red;
}

.nonchar {
	color: blue;
}

.surrogate {
	color: magenta;
}

/* ======== Footer ======== */

footer {
	border-block-start: 3px solid var(--text);
	padding-block-start: var(--p-gap);
	
	& p {
		padding-inline: 1em;
	}
}

/* ======== Top Link ======== */

nav.top-link {
	position: fixed;
	bottom: 0.5em;
	right: 0.5em;
	width: var(--top-link-size);
	height: var(--top-link-size);
	user-select: none;
}

nav.top-link a {
	display: flex;
	width: 100%;
	height: 100%;
	align-items: center;
	justify-content: center;
	text-decoration: none;
	font-size: 1.9em;
	color: var(--text);
	background-color: var(--bg);
	transition: background-color 0.075s ease 0s;
	font-family: Symbola, "Noto Emoji", "Segoe UI Symbol", Quivira, "Unifont Upper", serif, sans-serif;
	border: 3px solid var(--text);
	border-radius: 0.25em;
	box-shadow: 2px 2px 4px 0px #80a0b0;
	text-shadow: 1px 1px 0px var(--highlight1);
}

nav.top-link a:hover {
	background-color: var(--highlight2);
}

nav.top-link a:focus {
	outline-width: 2px;
}

/* ======== Dark Mode ======== */

@media (prefers-color-scheme: dark) {
	:root {		
		--highlight1: #616163;
		--highlight2: #424246;
		--highlight3: #22222a;
		
		--subtle: #aaaaaa;
		
		--form-bg: var(--main-dark);
		--form-shadow: salmon;
	}
	
	table, th, td {
		border-color: grey;
	}
	
	.private-use {
		color: tomato;
	}

	.nonchar {
		color: dodgerblue;
	}
}

/* ======== Display Size Responsiveness ======== */

@media (max-width: 680px) {
	:is(ul, ol, dl).long {
		column-count: 1;
	}
}

@media (max-width: 500px) {
	ul, ol, dl {
		padding-inline: 1em 0.5em;
	}
	
	table {
		font-size: 0.9em;
	}
	
	nav > ul {
		font-size: 1em;
	}
	
	footer {
		font-size: 0.9em;
	}
}