:root {
	--bg: #fbfaf7;
	--fg: #1d1c1a;
	--muted: #6b675f;
	--line: #e3dfd6;
	--panel: #ffffff;
	--code: #f3f0ea;
	--accent: #ea8220;
	--accent-fg: #ffffff;
	--ok: #2f7d32;
	--todo: #8a6d1d;
	--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
	:root {
		--bg: #161513;
		--fg: #ece9e2;
		--muted: #a29d93;
		--line: #34312c;
		--panel: #1e1d1a;
		--code: #26241f;
		--accent: #f29a3f;
		--accent-fg: #1a1208;
		--ok: #7cc47f;
		--todo: #d9b85c;
	}
}
* { box-sizing: border-box; }
body {
	margin: 0;
	background: var(--bg);
	color: var(--fg);
	font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
a { color: var(--accent); }
code, pre, textarea { font-family: var(--mono); font-size: 14px; }
code { background: var(--code); padding: 1px 4px; border-radius: 3px; }
h2 { margin-top: 56px; font-size: 26px; }
h3 { margin-top: 28px; font-size: 18px; }
.hero { border-bottom: 1px solid var(--line); padding: 56px 0 28px; }
.hero h1 { font-size: 48px; margin: 4px 0 8px; letter-spacing: -0.02em; }
.kicker { color: var(--accent); font-weight: 600; text-transform: uppercase; font-size: 13px; letter-spacing: 0.08em; margin: 0; }
.lead { font-size: 20px; max-width: 720px; color: var(--muted); margin: 0 0 20px; }
.links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 28px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.card b { display: block; font-size: 24px; }
.card span { color: var(--muted); font-size: 14px; }
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 16px 0 10px; }
select, button, .button {
	font: inherit; font-size: 15px; color: var(--fg); background: var(--panel);
	border: 1px solid var(--line); border-radius: 6px; padding: 6px 14px; cursor: pointer; text-decoration: none; display: inline-block;
}
select { margin-left: 6px; padding: 6px 8px; }
button:disabled { opacity: 0.5; cursor: default; }
.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
.state { color: var(--muted); font-size: 14px; }
.play { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 760px) { .play { grid-template-columns: 1fr; } }
#editor { min-height: 460px; height: 460px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; min-width: 0; }
textarea {
	width: 100%; min-height: 460px; resize: vertical; tab-size: 4; white-space: pre; overflow-wrap: normal; overflow-x: auto;
	background: var(--panel); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; padding: 12px; line-height: 1.5;
}
.output { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; display: flex; flex-direction: column; min-height: 420px; max-height: 640px; min-width: 0; }
.outhead { padding: 8px 12px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
#out { margin: 0; padding: 12px; white-space: pre-wrap; word-break: break-word; overflow: auto; flex: 1; }
#out .err { color: #d0473b; }
#members { padding: 0 12px 12px; overflow: auto; max-height: 340px; }
#members table { font-size: 13px; }
.note, .muted { color: var(--muted); font-size: 14px; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 15px; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; }
td:not(:first-child), th:not(:first-child) { white-space: nowrap; }
.ok { color: var(--ok); }
.todo { color: var(--todo); }
.cmd { background: var(--code); padding: 12px 14px; border-radius: 8px; overflow-x: auto; }
.steps li { margin-bottom: 10px; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 4px; }
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
.scroll { overflow-x: auto; }
table.bench { font-size: 14px; margin-top: 4px; }
table.bench td, table.bench th { padding: 6px 8px; vertical-align: middle; }
table.bench .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.bench .chk { display: none; color: var(--ok); }
table.bench .barcol { width: 42%; min-width: 140px; }
table.bench tr.ref td { font-weight: 600; }
table.bench .fail { color: var(--todo); white-space: normal; font-size: 13px; }
.track { position: relative; height: 20px; background: var(--code); border-radius: 3px; }
.fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent); opacity: 0.85; border-radius: 3px; }
.fill.fast { background: var(--ok); }
.fill.base { background: var(--muted); }
.mark { position: absolute; top: -3px; bottom: -3px; border-left: 2px dashed var(--fg); opacity: 0.45; }
.lbl { position: absolute; right: 6px; top: 0; line-height: 20px; font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
.runners dt { font-weight: 600; margin-top: 10px; }
.runners dd { margin: 2px 0 0; color: var(--muted); }
footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 20px 16px 40px; color: var(--muted); font-size: 14px; }
@media (max-width: 600px) {
	.hero h1 { font-size: 36px; }
	td, th { padding: 6px; }
	td:not(:first-child), th:not(:first-child) { white-space: normal; }
	table.bench .wall, table.bench .out { display: none; }
	table.bench .chk { display: inline; }
	table.bench td.num, table.bench th.num { white-space: nowrap; }
	table.bench { font-size: 13px; }
	table.bench td, table.bench th { padding: 5px 4px; }
	table.bench .barcol { min-width: 90px; }
	table.bench th.barcol .muted { display: none; }
}

/* Long-form pages (story.html) */
.kicker a { color: inherit; text-decoration: none; }
.kicker a:hover { text-decoration: underline; }
.story { max-width: 720px; margin: 0 auto; font-size: 17px; line-height: 1.65; }
.story > p, .story li { overflow-wrap: break-word; }
.story h2 { margin-top: 52px; font-size: 25px; line-height: 1.3; scroll-margin-top: 16px; }
.story h3 { margin-top: 30px; font-size: 18px; }
.story code { font-size: 0.86em; }
.story ul, .story ol { padding-left: 1.4em; }
.story li { margin-bottom: 6px; }
.story .byline { color: var(--muted); font-size: 14px; margin-top: 28px; }
.story blockquote { margin: 18px 0; padding: 4px 0 4px 16px; border-left: 3px solid var(--line); color: var(--muted); }
.story .callout { background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 8px; padding: 4px 18px; margin: 24px 0; font-size: 16px; }
.story .toc { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 6px 18px 10px; margin: 24px 0; font-size: 15px; }
.story .toc p { margin: 8px 0 4px; }
.story .toc ol { margin: 0; columns: 2; column-gap: 28px; }
.story .toc li { margin: 2px 0; break-inside: avoid; }
.story pre.code { tab-size: 4; background: var(--code); border-radius: 8px; padding: 12px 14px; overflow-x: auto; font-size: 13.5px; line-height: 1.5; }
.story pre.code code { background: none; padding: 0; font-size: inherit; }
.story figure { margin: 22px 0; }
.story figcaption { color: var(--muted); font-size: 13.5px; line-height: 1.5; margin-top: 6px; }
.story table { font-size: 14.5px; margin: 0; }
.story td, .story th { white-space: normal; }
.story td.n, .story th.n { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.story-hero .lead { max-width: 760px; }
@media (max-width: 600px) {
	.story { font-size: 16px; }
	.story h2 { font-size: 22px; }
	.story .toc ol { columns: 1; }
	.story table { font-size: 12.5px; }
	.story td, .story th { padding: 5px 4px; }
	.story td:first-child { min-width: 92px; }
	.story td.n, .story th.n { white-space: normal; }
}

.storylink { margin: -8px 0 20px; font-size: 16px; }
.storylink a { font-weight: 600; }
.story-hero .wrap, .story-foot { max-width: 752px; }