@font-face {
	font-family: "Literata";
	font-style: normal;
	font-weight: 200 900;
	font-display: swap;
	src: url("fonts/literata-latin-wght-normal.woff2") format("woff2");
}

@font-face {
	font-family: "Literata";
	font-style: italic;
	font-weight: 200 900;
	font-display: swap;
	src: url("fonts/literata-latin-wght-italic.woff2") format("woff2");
}

:root {
	--paper: #f6f7f9;
	--ink: #161a23;
	--muted: #545b6b;
	--rule: #d5d9e2;
	--accent: #2c4a8c;
	--accent-ink: #ffffff;
	--panel: #e6e9f1;
	--card: #ffffff;
	--field: #a9b1c0;
	--ring-outer: #f1f3f8;
	--ring-middle: #cad2e2;
	--ring-edge: #8f9bb4;
	--bar-kelly: #6b7386;
	--proof: #8a4a00;
	--proof-bg: #fff2d9;
	--font-text: "Literata", Georgia, "Times New Roman", serif;
	--font-ui: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--measure: 40rem;
	--page: 64rem;
	color-scheme: light;
}

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) {
		--paper: #10131a;
		--ink: #e3e7ef;
		--muted: #9aa3b5;
		--rule: #2a303d;
		--accent: #9db4e8;
		--accent-ink: #0d1018;
		--panel: #182030;
		--card: #151a24;
		--field: #4a5366;
		--ring-outer: #141a26;
		--ring-middle: #22304a;
		--ring-edge: #56627c;
		--bar-kelly: #7d8699;
		--proof: #f0b25b;
		--proof-bg: #2a2113;
		color-scheme: dark;
	}
}

:root[data-theme="dark"] {
	--paper: #10131a;
	--ink: #e3e7ef;
	--muted: #9aa3b5;
	--rule: #2a303d;
	--accent: #9db4e8;
	--accent-ink: #0d1018;
	--panel: #182030;
	--card: #151a24;
	--field: #4a5366;
	--ring-outer: #141a26;
	--ring-middle: #22304a;
	--ring-edge: #56627c;
	--bar-kelly: #7d8699;
	--proof: #f0b25b;
	--proof-bg: #2a2113;
	color-scheme: dark;
}

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

html {
	background: var(--paper);
	padding-top: env(safe-area-inset-top, 0px);
	padding-bottom: env(safe-area-inset-bottom, 0px);
	-webkit-text-size-adjust: 100%;
	text-size-adjust: 100%;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--font-text);
	font-size: 1.125rem;
	line-height: 1.65;
}

img {
	display: block;
	max-width: 100%;
	height: auto;
}

a {
	color: var(--accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

a:hover {
	text-decoration-thickness: 2px;
}

:focus-visible {
	outline: 3px solid var(--accent);
	outline-offset: 3px;
	border-radius: 2px;
}

h1,
h2,
h3 {
	margin: 0;
	font-weight: 640;
	line-height: 1.18;
	letter-spacing: -0.012em;
	text-wrap: balance;
}

h1 {
	font-size: clamp(2rem, 1.3rem + 2.6vw, 3rem);
}

h2 {
	font-size: 1.5rem;
}

h3 {
	font-size: 1.1875rem;
}

p,
ul,
ol,
figure {
	margin: 0;
}

cite {
	font-style: italic;
}

.wrap {
	max-width: var(--page);
	margin-inline: auto;
	padding-left: max(16px, env(safe-area-inset-left, 0px));
	padding-right: max(16px, env(safe-area-inset-right, 0px));
}

.measure {
	max-width: var(--measure);
}

.label {
	font-family: var(--font-ui);
	font-size: 0.75rem;
	font-weight: 650;
	line-height: 1.3;
	letter-spacing: 0.09em;
	text-transform: uppercase;
	color: var(--muted);
}

.skip {
	position: absolute;
	left: -100vw;
	top: 0;
}

.skip:focus {
	left: max(16px, env(safe-area-inset-left, 0px));
	top: calc(env(safe-area-inset-top, 0px) + 0.5rem);
	z-index: 20;
	padding: 0.5rem 1rem;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--font-ui);
}

.proofbar {
	background: var(--proof-bg);
	border-bottom: 1px solid var(--proof);
	font-family: var(--font-ui);
	font-size: 0.875rem;
	line-height: 1.45;
}

.proofbar .wrap {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 0.25rem 0.9rem;
	padding-block: 0.6rem;
}

.proof-tag,
.tag-proof {
	color: var(--proof);
	font-family: var(--font-ui);
	font-size: 0.6875rem;
	font-weight: 750;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.proofbar a {
	color: var(--ink);
}

.masthead {
	border-bottom: 1px solid var(--rule);
}

.masthead .wrap {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem 2rem;
	padding-block: 1.1rem;
}

.brand {
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
}

.wordmark {
	color: var(--ink);
	font-size: 1.5rem;
	font-weight: 700;
	line-height: 1.1;
	letter-spacing: -0.02em;
	text-decoration: none;
}

.wordmark em {
	color: var(--accent);
	font-weight: 600;
}

.from {
	color: var(--muted);
	font-family: var(--font-ui);
	font-size: 0.75rem;
	letter-spacing: 0.09em;
	text-transform: uppercase;
	text-decoration: none;
}

.from:hover {
	color: var(--accent);
}

.sitenav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.25rem 1.25rem;
	font-family: var(--font-ui);
	font-size: 0.9375rem;
}

.sitenav a {
	padding-block: 0.25rem;
	color: var(--ink);
	text-decoration: none;
}

.sitenav a:hover,
.sitenav a[aria-current="page"] {
	color: var(--accent);
	text-decoration: underline;
}

.sitenav a[aria-current="page"] {
	text-decoration-thickness: 2px;
}

.guide {
	display: grid;
	grid-template-columns: minmax(0, var(--measure));
	gap: 2.25rem 4rem;
	padding-block: 2.5rem 4rem;
}

.guide-head {
	display: grid;
	gap: 1.1rem;
}

.guide-body {
	display: grid;
	gap: 2.75rem;
	min-width: 0;
}

.crumbs ol {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	margin: 0;
	padding: 0;
	list-style: none;
	color: var(--muted);
	font-family: var(--font-ui);
	font-size: 0.8125rem;
}

.crumbs li + li::before {
	content: "/";
	margin-right: 0.4rem;
}

.crumbs a {
	color: var(--muted);
}

.lede {
	font-size: 1.3125rem;
	line-height: 1.55;
}

.byline {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	color: var(--muted);
	font-family: var(--font-ui);
	font-size: 0.875rem;
	line-height: 1.4;
}

.byline img {
	flex: none;
	width: 48px;
	height: 48px;
	border-radius: 50%;
	object-fit: cover;
}

.byline p {
	display: flex;
	flex-direction: column;
}

.byline .by {
	color: var(--ink);
}

.toc {
	display: grid;
	gap: 0.6rem;
	padding-block: 1rem;
	border-block: 1px solid var(--rule);
	font-family: var(--font-ui);
	font-size: 0.875rem;
	line-height: 1.4;
}

.toc ol {
	display: grid;
	gap: 0.45rem;
	margin: 0;
	padding-left: 1.2rem;
}

.toc a {
	color: var(--ink);
	text-decoration: none;
}

.toc a:hover {
	color: var(--accent);
	text-decoration: underline;
}

@media (min-width: 64rem) {
	.guide {
		grid-template-columns: minmax(0, var(--measure)) minmax(0, 15rem);
		grid-template-areas: "head ." "body toc";
	}

	.guide > .guide-head {
		grid-area: head;
	}

	.guide > .guide-body {
		grid-area: body;
	}

	.guide > .toc {
		grid-area: toc;
		position: sticky;
		top: 1.5rem;
		align-self: start;
		border-bottom: 0;
	}
}

.section {
	display: grid;
	gap: 0.9rem;
	scroll-margin-top: 1.5rem;
}

.plan {
	padding: 0.7rem 0.95rem;
	border: 1px dashed var(--proof);
	border-radius: 4px;
	background: var(--proof-bg);
	color: var(--ink);
	font-family: var(--font-ui);
	font-size: 0.9375rem;
	line-height: 1.5;
}

.plan-label {
	margin-right: 0.55rem;
	color: var(--proof);
	font-size: 0.6875rem;
	font-weight: 750;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.plan a {
	color: var(--ink);
	font-weight: 600;
}

.desk {
	display: grid;
	gap: 0.8rem;
	padding-top: 1rem;
	border-top: 2px solid var(--ink);
}

.desk-label {
	display: flex;
	align-items: center;
	gap: 0.6rem;
}

.desk-label img {
	width: 36px;
	height: 36px;
	border-radius: 50%;
}

.desk-body {
	display: grid;
	gap: 0.9rem;
}

.section ul,
.section ol,
.prose ol {
	display: grid;
	gap: 0.55rem;
	margin: 0;
	padding-left: 1.2rem;
}

.section h3 {
	margin-top: 0.5rem;
}

.section blockquote,
.prose blockquote {
	margin: 0;
	padding-left: 1rem;
	border-left: 2px solid var(--rule);
	color: var(--muted);
}

.table-wrap {
	overflow-x: auto;
	border-block: 1px solid var(--rule);
}

.table-wrap table {
	width: 100%;
	min-width: 40rem;
	border-collapse: collapse;
	font-family: var(--font-ui);
	font-size: 0.875rem;
	line-height: 1.45;
}

.table-wrap th,
.table-wrap td {
	padding: 0.6rem 0.75rem 0.6rem 0;
	border-bottom: 1px solid var(--rule);
	text-align: left;
	vertical-align: top;
}

.table-wrap th {
	font-weight: 650;
}

.table-wrap tr:last-child td {
	border-bottom: 0;
}

.join {
	display: grid;
	justify-items: start;
	gap: 0.8rem;
	padding: 1.5rem clamp(1.1rem, 4vw, 2rem);
	border-radius: 6px;
	background: var(--panel);
}

.join h2 {
	font-size: 1.375rem;
}

.join-extra {
	color: var(--muted);
	font-size: 1rem;
}

.button {
	display: inline-block;
	margin-top: 0.25rem;
	padding: 0.7rem 1.2rem;
	border-radius: 4px;
	background: var(--accent);
	color: var(--accent-ink);
	font-family: var(--font-ui);
	font-size: 1rem;
	font-weight: 650;
	text-decoration: none;
}

.button:hover {
	background: color-mix(in srgb, var(--accent) 84%, var(--ink));
}

.related {
	display: grid;
	gap: 0.9rem;
	padding-top: 1.25rem;
	border-top: 1px solid var(--rule);
}

.related ul {
	display: grid;
	gap: 0.9rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.related a {
	font-weight: 640;
}

.related span {
	display: block;
	color: var(--muted);
	font-size: 1rem;
	line-height: 1.45;
}

.colophon {
	border-top: 1px solid var(--rule);
	color: var(--muted);
	font-family: var(--font-ui);
	font-size: 0.8125rem;
	line-height: 1.5;
}

.colophon .wrap {
	display: grid;
	gap: 0.6rem;
	padding-block: 2rem 3rem;
}

.colophon nav {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem 1.25rem;
}

.colophon a {
	color: var(--muted);
}

.colophon a:hover {
	color: var(--accent);
}

.colophon .set {
	font-family: var(--font-text);
	font-size: 0.9375rem;
	font-style: italic;
}

.home {
	display: grid;
	gap: 3rem;
	padding-block: 2.75rem 4rem;
}

.home-hero {
	display: grid;
	gap: 1.25rem;
	max-width: var(--measure);
}

.home-hero h1 {
	font-size: clamp(2.3rem, 1.3rem + 4vw, 4rem);
	line-height: 1.05;
	letter-spacing: -0.022em;
}

.home .desk,
.home .join {
	max-width: var(--measure);
}

.contents {
	display: grid;
	gap: 1.5rem;
	scroll-margin-top: 1rem;
}

.contents-title {
	padding-bottom: 0.5rem;
	border-bottom: 2px solid var(--ink);
	font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.25rem);
	font-style: italic;
	font-weight: 500;
}

.parts {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr));
	gap: 2.25rem 2.5rem;
}

.part {
	display: grid;
	align-content: start;
	gap: 0.7rem;
}

.part h3 {
	display: grid;
	gap: 0.2rem;
	font-size: 1.3125rem;
}

.part ol {
	margin: 0;
	padding: 0;
	list-style: none;
	border-top: 1px solid var(--rule);
}

.part li {
	padding-block: 0.7rem;
	border-bottom: 1px solid var(--rule);
}

.part li a {
	color: var(--ink);
	font-weight: 640;
	text-decoration: none;
}

.part li a:hover {
	color: var(--accent);
	text-decoration: underline;
}

.part .q {
	display: block;
	margin-top: 0.15rem;
	color: var(--muted);
	font-size: 0.9375rem;
	line-height: 1.45;
}

.about-strip {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr);
	align-items: center;
	gap: 1.25rem;
	max-width: var(--measure);
	padding-top: 1.5rem;
	border-top: 1px solid var(--rule);
}

.about-strip img {
	width: 96px;
	height: 96px;
	border-radius: 50%;
	object-fit: cover;
}

.about-strip div {
	display: grid;
	gap: 0.35rem;
}

.about-strip h2 {
	font-size: 1.25rem;
}

.about {
	display: grid;
	gap: 2.5rem;
	padding-block: 2.5rem 4rem;
}

.about-lead {
	max-width: 30rem;
}

.about-lead img {
	width: 100%;
	border-radius: 4px;
}

.about-body {
	display: grid;
	gap: 3rem;
}

.prose {
	display: grid;
	gap: 1rem;
}

.prose ul {
	display: grid;
	gap: 0.6rem;
	padding-left: 1.2rem;
}

.photo {
	display: grid;
	gap: 0.5rem;
	max-width: 24rem;
}

.photo img {
	border-radius: 4px;
}

figcaption {
	color: var(--muted);
	font-family: var(--font-ui);
	font-size: 0.8125rem;
}

.notfound {
	display: grid;
	gap: 1.25rem;
	max-width: var(--measure);
	padding-block: 3rem 5rem;
}

.guide-head .label {
	margin-bottom: -0.35rem;
}

.thousand {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-start;
	gap: 1.5rem 3.5rem;
	padding-top: 1.75rem;
	border-top: 2px solid var(--ink);
}

.thousand-figure {
	flex: 1 1 15rem;
	display: grid;
	gap: 0.6rem;
}

.thousand-number {
	color: var(--accent);
	font-size: clamp(5rem, 3rem + 6vw, 8.5rem);
	font-weight: 760;
	font-variant-numeric: lining-nums;
	line-height: 0.9;
	letter-spacing: -0.045em;
}

.thousand-caption {
	max-width: 16rem;
	color: var(--muted);
	font-family: var(--font-ui);
	font-size: 0.9375rem;
	line-height: 1.45;
}

.thousand-text {
	flex: 999 1 30rem;
	max-width: var(--measure);
}

.thousand-text ul {
	gap: 0;
	padding: 0;
	list-style: none;
	border-top: 1px solid var(--rule);
}

.thousand-text li {
	padding-block: 0.75rem;
	border-bottom: 1px solid var(--rule);
}

.thousand-text li a {
	font-weight: 640;
}

.circles {
	display: grid;
	justify-items: center;
	gap: 0.75rem;
	padding-block: 0.75rem 0.25rem;
}

.circles-art {
	width: min(100%, 21.25rem);
}

.ring {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	aspect-ratio: 1;
	border-radius: 50%;
}

.ring-outer {
	width: 100%;
	border: 1px dashed var(--ring-edge);
	background: var(--ring-outer);
}

.ring-middle {
	width: 69.4%;
	background: var(--ring-middle);
}

.ring-inner {
	flex-direction: column;
	gap: 0.2rem;
	width: 54.2%;
	background: var(--accent);
	color: var(--accent-ink);
	text-align: center;
}

.ring-label {
	position: absolute;
	top: 4.5%;
	left: 0;
	right: 0;
	color: var(--ink);
	font-family: var(--font-ui);
	font-size: 0.75rem;
	font-weight: 600;
	line-height: 1.3;
	text-align: center;
}

.ring-middle > .ring-label {
	top: 7%;
}

.ring-number {
	font-size: 1.625rem;
	font-weight: 760;
	line-height: 1;
	letter-spacing: -0.02em;
}

.ring-word {
	font-family: var(--font-ui);
	font-size: 0.8125rem;
	font-weight: 600;
	line-height: 1.2;
}

.circles figcaption {
	max-width: 21.25rem;
	text-align: center;
}

.calc {
	display: grid;
	gap: 1.5rem;
	padding: clamp(1.1rem, 4vw, 1.75rem);
	border: 1px solid var(--rule);
	border-radius: 6px;
	background: var(--card);
	font-family: var(--font-ui);
}

.calc-inputs {
	min-width: 0;
	margin: 0;
	padding: 0;
	border: 0;
}

.calc-inputs legend {
	margin-bottom: 0.9rem;
	padding: 0;
}

.calc-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
	gap: 1.1rem 1.25rem;
}

.calc-field {
	display: grid;
	align-content: start;
	gap: 0.4rem;
	min-width: 0;
}

.calc-wide {
	grid-column: 1 / -1;
}

.calc-field label {
	font-size: 0.9375rem;
	font-weight: 600;
	line-height: 1.35;
}

.calc-box {
	display: flex;
	align-items: center;
	min-height: 2.875rem;
	border: 1px solid var(--field);
	border-radius: 4px;
	background: var(--card);
}

.calc-wide .calc-box {
	max-width: 15rem;
}

.calc-box:focus-within {
	outline: 3px solid var(--accent);
	outline-offset: 2px;
}

.calc-box input {
	flex: 1 1 0;
	width: 0;
	min-width: 0;
	padding: 0.6rem 0.75rem;
	border: 0;
	background: transparent;
	color: var(--ink);
	font: inherit;
	font-size: 1rem;
}

.calc-box input:focus {
	outline: none;
}

.calc-unit {
	padding-inline: 0.75rem;
	color: var(--muted);
}

.calc-unit + input {
	padding-left: 0;
}

.calc-hint,
.calc-presets-label {
	color: var(--muted);
	font-size: 0.8125rem;
	line-height: 1.4;
}

.calc-presets {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.5rem;
}

.calc-presets[hidden],
.calc-bars[hidden] {
	display: none;
}

.calc-preset {
	min-height: 2.75rem;
	padding: 0.5rem 0.75rem;
	border: 1px solid var(--field);
	border-radius: 4px;
	background: var(--card);
	color: var(--ink);
	font: inherit;
	font-size: 0.875rem;
	cursor: pointer;
}

.calc-preset[aria-pressed="true"] {
	border-color: var(--accent);
	background: var(--accent);
	color: var(--accent-ink);
}

.calc-results {
	display: grid;
	gap: 1.4rem;
	padding-top: 1.4rem;
	border-top: 1px solid var(--rule);
}

.calc-stats {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
	gap: 1.1rem 1.25rem;
}

.calc-stat {
	display: grid;
	align-content: start;
	gap: 0.25rem;
}

.calc-stat-label {
	color: var(--muted);
	font-size: 0.875rem;
	line-height: 1.4;
}

.calc-big {
	color: var(--ink);
	font-family: var(--font-text);
	font-size: 2.5rem;
	font-weight: 700;
	font-variant-numeric: lining-nums tabular-nums;
	line-height: 1.1;
	letter-spacing: -0.02em;
}

.calc-accent {
	color: var(--accent);
}

.calc-note,
.calc-how {
	color: var(--muted);
	font-size: 0.8125rem;
	line-height: 1.45;
}

.calc-bars {
	display: grid;
	gap: 0.6rem;
}

.calc-bars-title {
	font-size: 0.8125rem;
	font-weight: 600;
	line-height: 1.4;
}

.calc-bar-row {
	display: grid;
	grid-template-columns: 6.5rem minmax(0, 1fr) 4.5rem;
	align-items: center;
	gap: 0.75rem;
	font-size: 0.8125rem;
	line-height: 1.3;
}

.calc-track {
	display: block;
	height: 0.875rem;
	border-radius: 2px;
	background: var(--panel);
}

.calc-fill {
	display: block;
	width: 0;
	height: 100%;
	border-radius: 2px;
	background: var(--accent);
}

.calc-fill-kelly {
	background: var(--bar-kelly);
}

.calc-bar-num {
	font-variant-numeric: tabular-nums;
	text-align: right;
}