:root {
	--font-ui: system-ui, Helvetica Neue, Helvetica, Segoe UI, sans-serif;
	--font-code: ui-monospace, SFMono-Regular, Consolas, Liberation Mono, monospace;
	--hairline: hsl(220 15% 85%);
	--muted: hsl(220 10% 40%);
	--accent: oklch(55% 0.17 265);
	--panel: hsl(220 25% 98%);
	--yes: oklch(48% 0.13 150);
	--no: oklch(52% 0.18 30);
	--gm: oklch(50% 0.15 265);
	--clip: oklch(55% 0.2 30);
}

body {
	font: 105%/1.5 var(--font-ui);
	width: 92vw;
	max-width: 76em;
	margin: 1em auto 4em;
	padding: 0 1em;
	color: hsl(220 15% 15%);
}

h1 {
	text-align: center;
	font-weight: 600;
}

h1 em {
	font-style: normal;
	color: var(--accent);
}

.intro {
	max-width: 50em;
	margin: 0 auto 2em;
	text-align: center;
	color: var(--muted);
}

code,
pre {
	font-family: var(--font-code);
	font-size: 90%;
}

a {
	color: var(--accent);
}

button {
	font: inherit;
	font-size: 90%;
	padding: .3em .8em;
	border: 1px solid var(--hairline);
	border-radius: .3em;
	background: var(--panel);
	color: inherit;
	cursor: pointer;
}

button:hover:not(:disabled) {
	border-color: var(--accent);
	color: var(--accent);
}

button:disabled {
	cursor: default;
	opacity: .55;
}

/* ------------------------------------------------------------------ inputs -- */

.inputs {
	display: flex;
	flex-wrap: wrap;
	align-items: end;
	gap: .8em 1.5em;
	margin-bottom: .4em;
}

.inputs .field {
	flex: 1;
	min-width: 18em;
}

.inputs .field.narrow {
	flex: 0 1 10em;
	min-width: 8em;
}

.inputs label {
	display: block;
	margin-bottom: .2em;
	font-weight: 600;
}

.inputs label span {
	color: var(--muted);
	font-weight: 400;
}

.inputs input,
.inputs select {
	/* The padding and border have to come out of the field's width, or the input
	   overflows its wrapper and eats the flex gap on both sides */
	box-sizing: border-box;
	inline-size: 100%;
	font-family: var(--font-code);
	font-size: 105%;
	padding: .5em .7em;
	border: 2px solid var(--hairline);
	border-radius: .3em;
	background: white;
}

.inputs input:focus-visible,
.inputs select:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 1px;
	border-color: transparent;
}

#permalink {
	padding-bottom: .6em;
}

.hint {
	max-width: 50em;
	margin: 0 0 1em;
	font-size: 85%;
	color: var(--muted);
}

.examples {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: .4em;
	margin-bottom: 1.5em;
	font-size: 85%;
	color: var(--muted);
}

.examples button {
	font-family: var(--font-code);
	font-size: 95%;
	padding: .25em .6em;
	border-radius: 1em;
}

.error {
	padding: .8em 1em;
	border-radius: .3em;
	border-inline-start: .4em solid oklch(58% 0.21 25);
	background: oklch(96% 0.03 25);
	color: oklch(35% 0.12 25);
}

.note {
	color: var(--muted);
	font-size: 90%;
	font-weight: 400;
}

/* ---------------------------------------------------------------- swatches -- */

.swatch {
	display: inline-block;
	inline-size: 1.3em;
	block-size: 1.3em;
	vertical-align: -.3em;
	margin-inline-end: .45em;
	border-radius: .2em;
	box-shadow: 0 0 0 1px hsl(220 15% 0% / .25) inset;
	background: var(--color, transparent);
}

.swatch.big {
	flex: none;
	inline-size: 3.5em;
	block-size: 3.5em;
	border-radius: .3em;
}

.swatch.huge {
	flex: none;
	inline-size: 7em;
	block-size: 7em;
	margin: 0;
	border-radius: .4em;
}

/* ---------------------------------------------------------------- sections -- */

section {
	margin: 2.5em 0;
	padding-top: .5em;
	border-top: 1px solid var(--hairline);
}

section > h2 {
	font-size: 1.15em;
	font-weight: 600;
	letter-spacing: .01em;
}

section > p {
	max-width: 50em;
	color: var(--muted);
}

dl {
	display: grid;
	grid-template-columns: max-content 1fr;
	gap: .3em 1em;
	margin: 0;
}

dt {
	color: var(--muted);
}

dd {
	margin: 0;
	overflow-wrap: anywhere;
}

/* ------------------------------------------------------------------ origin -- */

.origin {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 1em 1.5em;
	border-top: 0;
}

.origin .out {
	color: var(--clip);
	font-weight: 700;
}

.origin > p {
	flex-basis: 100%;
	margin: 0;
}

/* ----------------------------------------------------------------- verdict -- */

.verdict {
	padding: 1.2em 1.4em;
	border-radius: .5em;
	background: var(--panel);
	border: 1px solid var(--hairline);
	border-inline-start: .4em solid var(--verdict);
}

.verdict.yes {
	--verdict: var(--yes);
}

.verdict.no {
	--verdict: var(--no);
}

.verdict > h2 {
	margin-top: 0;
	font-size: 1.4em;
	color: var(--verdict);
}

.verdict > p {
	max-width: 55em;
	color: inherit;
	font-size: 105%;
}

.verdict dl {
	margin-bottom: 1em;
}

/* ------------------------------------------------------------------ tables -- */

.scroller {
	overflow-x: auto;
	margin: .8em 0;
}

table.values {
	border-collapse: collapse;
	font-size: 90%;
}

table.values th,
table.values td {
	padding: .35em .8em;
	border: 1px solid var(--hairline);
	text-align: end;
	white-space: nowrap;
}

table.values thead th {
	background: var(--panel);
	font-weight: 600;
	text-align: center;
}

table.values tbody th {
	text-align: start;
	font-weight: 600;
}

table.values tbody th .note a {
	color: inherit;
}

table.values td {
	font-family: var(--font-code);
	font-variant-numeric: tabular-nums;
}

table.values tr.clip th {
	color: var(--clip);
}

table.values tr.gm th {
	color: var(--gm);
}

table.values tr.mean {
	background: var(--panel);
}

table.scan tbody th {
	font-weight: 400;
}

table.scan td.actions {
	display: flex;
	gap: .4em;
	font-family: var(--font-ui);
}

/* ------------------------------------------------------------ channel plot -- */

.plot {
	max-width: 50em;
	margin: 1.5em 0;
}

.track {
	display: flex;
	align-items: center;
	gap: .8em;
	margin-bottom: .6em;
}

.channel {
	inline-size: 1em;
	font-family: var(--font-code);
	color: var(--muted);
}

.rail {
	position: relative;
	flex: 1;
	block-size: 1.6em;
	border-radius: .2em;
	background: linear-gradient(transparent calc(50% - 1px), var(--hairline) 0 calc(50% + 1px), transparent 0);
}

.band {
	position: absolute;
	inset-block: 0;
	/* A zero-width band would vanish; keep a sliver so E itself stays visible */
	min-inline-size: 2px;
	border-radius: .2em;
	background: oklch(from var(--yes) l c h / .25);
	box-shadow: 0 0 0 1px var(--yes) inset;
}

.mark {
	position: absolute;
	inset-block: .15em;
	inline-size: 3px;
	margin-inline-start: -1.5px;
	border-radius: 2px;
}

.mark.gm {
	background: var(--gm);
}

.mark.clip {
	inset-block: -.15em;
	inline-size: 4px;
	margin-inline-start: -2px;
	background: var(--clip);
}

.legend {
	display: flex;
	flex-wrap: wrap;
	gap: .4em 1.4em;
	margin: .4em 0 0 1.8em;
	font-size: 85%;
}

.key {
	display: inline-block;
	inline-size: .8em;
	block-size: .8em;
	margin-inline-end: .35em;
	vertical-align: -.05em;
	border-radius: .15em;
}

.key.band {
	position: static;
	background: oklch(from var(--yes) l c h / .25);
	box-shadow: 0 0 0 1px var(--yes) inset;
}

.key.gm {
	background: var(--gm);
}

.key.clip {
	background: var(--clip);
}

/* --------------------------------------------------------- in this browser -- */

.readback {
	display: flex;
	align-items: center;
	gap: 1em;
	max-width: 55em;
}

.readback.control {
	margin-top: .8em;
}

.readback.yes b {
	color: var(--yes);
}

.readback.no b {
	color: var(--no);
}

/* -------------------------------------------------------------------- test -- */

.test {
	margin-top: 2em;
}

.test h3 {
	margin-bottom: .4em;
	font-size: 1em;
	font-weight: 600;
}

.cases {
	padding: 0;
	list-style: none;
}

.cases li {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: .2em .6em;
	margin-bottom: .4em;
}

.cases .remove {
	padding: 0 .5em;
	line-height: 1.4;
}

.source-head {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: center;
	gap: .5em;
	font-size: 90%;
	color: var(--muted);
}

pre {
	overflow-x: auto;
	padding: 1em 1.2em;
	border: 1px solid var(--hairline);
	border-radius: .4em;
	background: var(--panel);
	tab-size: 4;
}

footer {
	margin-top: 3em;
	padding-top: 1em;
	border-top: 1px solid var(--hairline);
	font-size: 85%;
	color: var(--muted);
}

@media (width < 45em) {
	.inputs .field,
	.inputs .field.narrow {
		min-width: 100%;
	}

	#permalink {
		padding-bottom: 0;
	}
}