:root {
	color-scheme: light dark;

	--bg: light-dark(#f4f1ea, #14140f);
	--fg: light-dark(#1a1a1a, #e8e4d8);
	--muted: light-dark(#5f5f57, #9a9a8e);
	--rule: light-dark(#cfc9bc, #38382f);

	--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
	margin: 0;
	padding-block: 2rem 4rem;
	padding-inline: clamp(1rem, 4vw, 1.25rem);
	background: var(--bg);
	color: var(--fg);
	font: 13px/1.5 var(--mono);
}

main {
	container: board / inline-size;
	max-inline-size: 46rem;
	margin-inline: auto;
}

h1 {
	margin-block: 0 0.5rem;
	font-size: 16px;
	text-transform: lowercase;
}

.lede {
	margin-block: 0 0.75rem;
	max-inline-size: 34rem;
	color: var(--muted);
	text-wrap: pretty;
}

.meta,
.count,
.legend {
	font-size: 12px;
	color: var(--muted);
}

.meta {
	margin-block: 0 1.5rem;
}

.message {
	margin-block: 2rem;
	color: var(--muted);

	&.error {
		color: var(--fg);
	}
}

/* ─── controls ───────────────────────────────────────────────────────────── */

.controls {
	display: block;
	margin-block-end: 1rem;
}

.control {
	margin-block: 0.35rem;

	& label,
	& > span:first-child {
		color: var(--muted);
	}
}

input[type="search"] {
	font: inherit;
	color: inherit;
	background: none;
	border: none;
	border-block-end: 1px solid var(--rule);
	padding-block: 2px;
	min-inline-size: 12rem;
}

select {
	font: inherit;
	color: inherit;
	background: none;
	border: 1px solid var(--rule);
}

/* Buttons that read as plain text. */
button {
	font: inherit;
	color: inherit;
	background: none;
	border: none;
	padding: 0;
	text-align: start;
	cursor: pointer;

	&:disabled {
		color: var(--muted);
		cursor: default;
	}

	&:hover:not(:disabled),
	&.link {
		text-decoration: underline;
	}
}

.show-link[aria-pressed="true"] {
	font-weight: 700;
	text-decoration: underline;
}

:focus-visible {
	outline: 2px solid var(--fg);
	outline-offset: 2px;
}

.legend {
	margin-block: 0.6rem 0;
}

.legend-line {
	display: block;
}

.sort-mobile {
	display: none;
}

/* ─── table ──────────────────────────────────────────────────────────────── */

table {
	inline-size: 100%;
	margin-block-start: 1rem;
	border-collapse: collapse;

	/* Fixed layout + explicit widths, so columns are sized by the colgroup rather
	   than by whichever rows happen to be on screen. Without this, switching
	   between ranked / all / hosts resizes every column as the longest country
	   changes. Widths are in ch, which is exact in a monospace face. */
	table-layout: fixed;
}

col:nth-child(1) { inline-size: 6ch; }  /* rank      */
col:nth-child(2) { inline-size: 11ch; } /* initials  */
col:nth-child(3) { inline-size: 21ch; } /* country   */
col:nth-child(4) { inline-size: 15ch; } /* score     */
col:nth-child(5) { inline-size: 20ch; } /* status    */

thead th {
	padding: 2px 18px 6px 0;
	font-weight: 400;
	text-align: start;
	color: var(--muted);
	border-block-end: 1px solid var(--rule);
	text-transform: lowercase;

	&.sorted {
		font-weight: 700;
		color: var(--fg);
	}
}

tbody td {
	padding-block: 2px;
	padding-inline: 0 18px;
	vertical-align: top;

	&.muted {
		color: var(--muted);
	}

	/* Cells carrying a title tooltip. */
	&.noted {
		text-decoration: underline dotted var(--rule);
		text-underline-offset: 3px;
	}
}

tbody tr.host td {
	color: var(--muted);
}

/* Pinned rows sort to the top; bold marks them without costing column width,
   which matters under the fixed layout. */
tbody tr.pinned td {
	font-weight: 700;
}

/* A rule closes the pinned block, so a pinned row that the current `show:`
   bucket excludes reads as deliberate rather than as a broken filter. Pinned
   rows are contiguous, so only the last one has an unpinned row after it. */
tbody tr.pinned:has(+ tr:not(.pinned)) td {
	padding-block-end: 0.4rem;
	border-block-end: 1px solid var(--rule);
}

/* Cells that are also controls: the name pins, the country filters. They should
   read as text until you go near them. */
.pin,
.country {
	font: inherit;
	text-align: start;
}

tr.pinned .pin {
	font-weight: 700;
}

abbr.att {
	margin-inline-start: 0.4ch;
	color: var(--muted);
	text-decoration: none;
	cursor: help;
}

tr.host-note {
	display: none;
}

/* ─── footer bits ────────────────────────────────────────────────────────── */

.hint {
	margin-block: 1rem 0;
}

/* Deliberately not muted — it is the only thing on screen when a filter comes
   back empty, and it is the way out. */
.hint-action {
	color: var(--fg);
	text-decoration: underline;
	text-underline-offset: 3px;
	padding-block: 6px;
	min-block-size: 44px;
}

.pager {
	display: flex;
	gap: 0.75rem;
	align-items: baseline;
	margin-block-start: 1.25rem;
}

.pager-status {
	color: var(--muted);
}

.count {
	margin-block: 0.5rem 0;
}

/* ─── stats ──────────────────────────────────────────────────────────────── */

.stats {
	margin-block-start: 1.5rem;
	font-size: 12px;
	color: var(--muted);

	& summary {
		cursor: pointer;
		inline-size: fit-content;
	}

	&[open] summary {
		margin-block-end: 0.75rem;
	}
}

.stats-line {
	margin-block: 0 0.75rem;
	line-height: 1.9;
}

.stats-note {
	margin-block: 0;
	max-inline-size: 40rem;
	text-wrap: pretty;
}

.histogram {
	font: inherit;
	margin-block: 0 1rem;
	overflow-x: auto;
}

.visually-hidden {
	position: absolute;
	inline-size: 1px;
	block-size: 1px;
	overflow: hidden;
	clip-path: inset(50%);
	white-space: nowrap;
}

/* ─── narrow: rows become stacked blocks ─────────────────────────────────── */

/* Root type scale answers to the viewport; the table layout below answers to
   the container it actually sits in. */
@media (width < 560px) {
	body {
		font-size: 14px;
	}
}

@container board (width < 520px) {
	.sort-mobile {
		display: block;
	}

	select {
		min-block-size: 44px;
		padding: 8px;
	}

	table,
	thead,
	tbody,
	tr,
	td {
		display: block;
		inline-size: 100%;
	}

	thead,
	colgroup {
		display: none;
	}

	tbody tr {
		padding-block: 0.6rem;
		border-block-end: 1px solid var(--rule);
	}

	/* A host row is followed by its note row, which carries the rule instead. */
	tbody tr.host {
		border-block-end: none;
		padding-block-end: 0;
	}

	tbody td {
		padding-inline: 0;

		&::before {
			content: attr(data-label) ":\00a0";
			color: var(--muted);
		}

		/* No hover here, so the dotted tooltip hint is meaningless. */
		&.noted {
			text-decoration: none;
		}
	}

	tr.host-note {
		display: block;
		padding-block-end: 0.6rem;
		border-block-end: 1px solid var(--rule);

		& td {
			padding-block-start: 0.3rem;
			font-size: 12px;
			color: var(--muted);

			&::before {
				content: "";
			}
		}
	}

	.show-link,
	.pager button {
		min-block-size: 44px;
		padding-block: 6px;
	}
}