/* Base styles and content styles */

:root {
	/* Browser default font-size is 16px, this way 1 rem = 10px */
	font-size: 62.5%;
	color-scheme: var(--color-scheme);
}

html {
	font-family: var(--text-font);
	font-optical-sizing: auto;
	font-weight: 400;
	font-style: normal;
	color: var(--fg);
	background-color: var(--bg);
	text-size-adjust: none;
	-webkit-text-size-adjust: none;
}

body {
	margin: 0;
	font-size: 1.6rem;
	overflow-x: hidden;
	text-align: justify;
	text-justify: inter-word;
	hyphens: auto;
}

code {
	font-family: var(--mono-font) !important;
	font-size: var(--code-font-size);
	direction: ltr !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: var(--title-font);
}

/* make long words/inline code not x overflow */
main {
	overflow-wrap: break-word;
}

/* make wide tables scroll if they overflow */
.table-wrapper {
	overflow-x: auto;
}

/* Don't change font size in headers. */
h1 code,
h2 code,
h3 code,
h4 code,
h5 code,
h6 code {
	font-size: unset;
}

.left {
	float: left;
}
.right {
	float: right;
}
.boring {
	opacity: 0.6;
}
.hide-boring .boring {
	display: none;
}
.hidden {
	display: none !important;
}

.header + .header h3,
.header + .header h4,
.header + .header h5 {
	margin-block-start: 1em;
}

h1:target::before,
h2:target::before,
h3:target::before,
h4:target::before,
h5:target::before,
h6:target::before {
	display: inline-block;
	content: "»";
	margin-inline-start: -30px;
	width: 30px;
}

/* This is broken on Safari as of version 14, but is fixed
   in Safari Technology Preview 117 which I think will be Safari 14.2.
   https://bugs.webkit.org/show_bug.cgi?id=218076
*/
:target {
	/* Safari does not support logical properties */
	scroll-margin-top: calc(var(--menu-bar-height) + 0.5em);
}

.page {
	outline: 0;
	padding: 0 var(--page-padding);
	margin-block-start: 0;
}
.page-wrapper {
	box-sizing: border-box;
	background-color: var(--bg);
}

.content {
	padding: 0 5px 50px 5px;
}
.content main {
	margin-inline-start: auto;
	margin-inline-end: auto;
	max-width: var(--content-max-width);
}
.content p {
	line-height: 1.45em;
}
.content ol {
	line-height: 1.45em;
}
.content ul {
	line-height: 1.45em;
}
.content a {
	text-decoration: none;
}
.content a:hover {
	text-decoration: underline;
}
.content img,
.content video {
	max-width: 100%;
}
.content .header:link,
.content .header:visited {
	color: var(--fg);
}
.content .header:link,
.content .header:visited:hover {
	text-decoration: none;
}

.page-toc {
	display: none;
	position: sticky;
	top: calc(var(--menu-bar-height) + var(--docs-top-offset));
	align-self: start;
	max-height: calc(
		100vh - var(--menu-bar-height) - var(--docs-top-offset) - 2.4rem
	);
	overflow: auto;
}

.page-toc__nav {
	padding-top: 1rem;
	padding-right: 0.2rem;
}

.page-toc__title {
	margin: 0 0 1.2rem 0;
	font-family: var(--title-font);
	font-size: 1.54rem;
	font-weight: 700;
	line-height: 1.35;
}

.page-toc__list {
	margin: 0;
	padding: 0;
	list-style: none;
	border-inline-start: 1px solid var(--site-header-separator);
}

.page-toc__item {
	margin: 0;
}

.page-toc__item a {
	display: block;
	margin-inline-start: -1px;
	padding: 0.45rem 0 0.45rem 1.6rem;
	border-inline-start: 1px solid transparent;
	color: var(--fg);
	font-size: 1.4rem;
	font-weight: 400;
	line-height: 1.4;
	text-decoration: none;
	text-align: left;
	text-justify: auto;
	hyphens: manual;
	overflow-wrap: normal;
	word-break: normal;
	transition:
		border-color 160ms ease,
		color 160ms ease,
		font-weight 160ms ease;
}

.page-toc .page-toc__item a:link {
	color: var(--fg);
}

.page-toc .page-toc__item a:visited {
	color: var(--fg);
}

.page-toc__item a:hover {
	color: var(--site-header-link-hover);
	text-decoration: none;
	border-inline-start-color: var(--sidebar-hover-rule);
}

.page-toc__item a[aria-current] {
	color: var(--sidebar-active);
	border-inline-start-width: 2px;
	border-inline-start-color: var(--sidebar-active);
	font-weight: 600;
}

.page-toc__item--h3 a {
	padding-inline-start: 2.8rem;
	font-size: 1.4rem;
	color: var(--fg);
}

.page-kicker {
	margin: 0 0 0.3rem 0;
	color: var(--sidebar-active);
	font-family: var(--text-font);
	font-size: 1.45rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	line-height: 1.2;
	text-transform: uppercase;
}

.content main > h1:first-of-type {
	margin-top: 0;
	margin-bottom: 2.4rem;
	font-size: 5.6rem;
	line-height: 1.05;
	letter-spacing: -0.08rem;
}

.content main > h2 {
	font-size: 4rem;
	line-height: 1.1;
	letter-spacing: -0.04rem;
}

.content main > h3 {
	font-size: 3rem;
	line-height: 1.15;
}

.docs-mobile-nav {
	display: none;
}

.docs-mobile-nav__trigger {
	display: flex;
	align-items: center;
	gap: 0.8rem;
	width: 100%;
	padding: 1.2rem 0;
	border-bottom: 1px solid var(--site-header-separator);
	color: var(--site-header-link);
	font-size: 1.5rem;
	font-weight: 500;
	line-height: 1.3;
	cursor: pointer;
}

.docs-mobile-nav__icon {
	flex-shrink: 0;
	font-size: 1.55rem;
}

.docs-mobile-nav__label {
	display: inline-flex;
	align-items: center;
	flex-shrink: 0;
	color: var(--site-header-link-hover);
	font-weight: 600;
}

.docs-mobile-nav__label::after {
	content: ">";
	margin-inline-start: 0.8rem;
	color: var(--site-header-link);
}

.docs-mobile-nav__current {
	min-width: 0;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.landing-page {
	padding: 0 0 8rem;
}

.landing-hero {
	padding: 2rem 0 4.8rem;
}

.landing-hero__inner {
	box-sizing: border-box;
	display: grid;
	grid-template-columns: minmax(30rem, 1.16fr) minmax(0, 0.98fr);
	align-items: center;
	gap: clamp(1.2rem, 2.1vw, 2.8rem);
	max-width: 112rem;
	margin: 0 auto;
	padding: 0 max(2.4rem, var(--page-padding));
}

.landing-hero__logo-panel {
	display: flex;
	align-items: center;
	justify-content: flex-end;
	padding: 0;
}

.landing-hero__logo {
	display: block;
	width: clamp(34rem, 37vw, 50rem);
	max-width: none;
	height: auto;
}

.landing-hero__content {
	max-width: 56rem;
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
}

.landing-hero__tagline {
	margin: 0;
	max-width: 52rem;
	font-size: clamp(2.3rem, 2vw, 3.1rem);
	font-weight: 600;
	font-family: var(--title-font);
	line-height: 1.22;
	color: var(--fg);
	text-wrap: balance;
}

.landing-hero__actions {
	margin-top: 2.8rem;
}

.landing-hero__problem-intro {
	margin: 2.6rem 0 0;
	font-family: var(--title-font);
	font-size: 2.5rem;
	font-weight: 700;
	letter-spacing: 0.02em;
	line-height: 1.15;
	color: var(--fg);
}

.landing-hero__problem-grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(14rem, 16rem));
	row-gap: 1.2rem;
	column-gap: 0.6rem;
	width: fit-content;
	margin-inline: auto;
	margin-top: 1.8rem;
}

.landing-problem-card {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: flex-start;
	min-height: 8rem;
	padding: 0;
	text-align: center;
}

.landing-problem-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 4rem;
	height: 8.4rem;
	border-radius: 999px;
	color: var(--landing-section-accent);
	font-size: 4.8rem;
}

.landing-problem-card--other .landing-problem-card__icon {
	width: 8.8rem;
}

.landing-problem-card__logo {
	display: block;
	width: 8.6rem;
	height: auto;
	max-height: 5.8rem;
}

.landing-problem-card__text {
	margin: 0;
	max-width: 20ch;
	font-size: 1.7rem;
	font-family: var(--title-font);
	font-weight: 600;
	line-height: 1.2;
	color: var(--fg);
}

.landing-hero__cta {
	box-sizing: border-box;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 22rem;
	min-height: 5.8rem;
	padding: 1.4rem 2.8rem;
	border: 2px solid var(--landing-hero-cta-border);
	border-radius: 1rem;
	background: var(--landing-hero-cta-bg);
	color: var(--landing-hero-cta-fg);
	font-family: var(--title-font);
	font-size: 3.5rem;
	font-weight: 700;
	letter-spacing: 0.03em;
	line-height: 1;
	text-decoration: none;
	transition:
		transform 160ms ease,
		background-color 160ms ease,
		color 160ms ease,
		border-color 160ms ease;
}

.landing-hero__cta:link,
.landing-hero__cta:visited {
	color: var(--landing-hero-cta-fg);
}

.landing-hero__cta:hover {
	color: var(--landing-hero-cta-hover-fg);
	background: var(--landing-hero-cta-hover-bg);
	border-color: var(--landing-hero-cta-hover-border);
	text-decoration: none;
	transform: translateY(-1px);
}

.landing-page__content {
	max-width: 112rem;
	margin: 0 auto;
	padding: 0 max(2.4rem, var(--page-padding));
}

.landing-section__inner {
	box-sizing: border-box;
	max-width: 112rem;
	margin: 0 auto;
	padding: 0 max(2.4rem, var(--page-padding));
}

.landing-why {
	margin-top: 1.6rem;
	padding: 5.4rem 0 5.8rem;
	background: var(--landing-why-bg);
}

.landing-section-heading {
	max-width: 74rem;
}

.landing-services .landing-section-heading {
	max-width: none;
}

.landing-section-heading__title {
	margin: 0;
	display: inline-block;
	font-family: var(--title-font);
	font-weight: 700;
	letter-spacing: -0.03rem;
	padding-bottom: 0.4rem;
	border-bottom: 0.6rem solid var(--landing-section-accent);
	font-size: clamp(3.4rem, 3.8vw, 5rem);
	line-height: 1;
}

.landing-why__grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 2.8rem;
	margin-top: 3rem;
}

.landing-why-card {
	padding-right: 1rem;
}

.landing-why-card__title {
	margin: 0;
	font-family: var(--title-font);
	font-weight: 700;
	letter-spacing: -0.02rem;
	font-size: 2.8rem;
	line-height: 1;
}

.landing-why-card__text {
	margin: 1.5rem 0 0;
	font-size: 1.65rem;
	line-height: 1.5;
	color: var(--fg);
}

.landing-services {
	padding: 5.2rem 0 5.8rem;
}

.landing-services__heading-row {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 2.4rem;
}

.landing-services__card {
	display: grid;
	grid-template-columns: 1fr;
	align-items: center;
	gap: 0;
	margin-top: 2.4rem;
	padding: 0;
}

.landing-services__text {
	margin: 0;
	font-size: 2.1rem;
	line-height: 1.5;
	color: var(--fg);
}

.landing-button {
	box-sizing: border-box;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: calc(100% - 2.4rem);
	margin-inline: auto;
	color: var(--text-on-accent);
	font-family: var(--title-font);
	font-weight: 700;
	line-height: 1;
	text-decoration: none;
	transition:
		background-color 160ms ease,
		color 160ms ease,
		transform 160ms ease;
}

.landing-services__link,
.landing-involved__link,
.landing-thanks__link {
	text-transform: uppercase;
}

.landing-services__link {
	margin-top: 2.2rem;
	padding: 1.1rem 1.8rem;
	border-radius: 1rem;
	background: var(--sidebar-active);
	font-size: 2.2rem;
	letter-spacing: 0.02em;
}

.landing-button:link,
.landing-button:visited {
	color: var(--text-on-accent);
}

.landing-services__content {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: left;
	width: 100%;
}

.landing-services__content .landing-services__text {
	align-self: stretch;
}

.landing-button:hover {
	background: var(--landing-action-hover-bg);
	color: var(--text-on-accent);
	text-decoration: none;
	transform: translateY(-1px);
}

.landing-services__brand {
	display: flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 40rem;
}

.landing-services__logo {
	display: block;
	width: 100%;
	max-width: 40rem;
	height: auto;
}

.dark-only {
	display: none;
}

html.navy .light-only {
	display: none;
}

html.navy .dark-only {
	display: block;
}

.landing-involved {
	padding: 5.6rem 0 6rem;
	background: var(--landing-involved-bg);
	color: var(--fg);
}

.landing-involved__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 2.8rem;
	align-items: stretch;
	margin-top: 3rem;
}

.landing-column-card {
	display: flex;
	flex-direction: column;
	align-items: stretch;
}

.landing-involved__card {
	height: 100%;
}

.landing-involved__card--wide {
	margin-top: 2.8rem;
}

.landing-column-card__title {
	margin: 0;
	font-family: var(--title-font);
	font-size: 3rem;
	font-weight: 700;
	line-height: 1;
	color: var(--fg);
}

.landing-column-card__text {
	margin: 1.8rem 0 0;
	flex: 1;
	font-size: 2rem;
	line-height: 1.5;
	color: var(--fg);
}

.landing-involved__link,
.landing-thanks__link {
	margin-top: 2.8rem;
	padding: 1.3rem 1.8rem;
	font-size: 2rem;
	letter-spacing: 0.04em;
}

.landing-involved__link {
	background: var(--landing-involved-link-bg);
	border-radius: 0.6rem;
}

.landing-thanks {
	padding: 5.4rem 0 6rem;
	background: var(--bg);
}

.landing-thanks__intro {
	max-width: 108rem;
	margin: 2.6rem 0 0;
	font-size: clamp(2rem, 2.1vw, 2.6rem);
	line-height: 1.45;
	color: var(--fg);
}

.landing-thanks__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 2.8rem;
	margin-top: 3.2rem;
}

.landing-thanks__card {
	min-width: 0;
}

.landing-thanks__link {
	border-radius: 0.8rem;
	background: var(--sidebar-active);
}

@media only screen and (max-width: 900px) {
	.landing-hero {
		padding-top: 4.2rem;
	}

	.landing-hero__inner {
		grid-template-columns: 1fr;
		gap: 2.8rem;
	}

	.landing-hero__logo-panel {
		justify-content: center;
	}

	.landing-hero__logo {
		width: min(32rem, 74vw);
		max-width: 100%;
	}

	.landing-hero__content {
		max-width: none;
	}

	.landing-hero__problem-grid {
		max-width: 48rem;
	}

	.landing-why {
		padding: 4.6rem 0 5rem;
	}

	.landing-why__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 2.6rem 2rem;
	}

	.landing-services__card {
		gap: 2.4rem;
	}

	.landing-services__heading-row {
		flex-direction: column;
		align-items: flex-start;
		gap: 1.4rem;
	}

	.landing-services__brand {
		flex-basis: auto;
		width: min(100%, 24rem);
	}

	.landing-involved__grid {
		grid-template-columns: 1fr;
		gap: 2.4rem;
	}

	.landing-involved__card--wide {
		margin-top: 2.4rem;
	}

	.landing-thanks__grid {
		grid-template-columns: 1fr;
	}
}

@media only screen and (max-width: 520px) {
	.landing-page {
		padding-bottom: 5.6rem;
	}

	.landing-hero {
		padding: 2rem 0 3.6rem;
	}

	.landing-hero__tagline {
		font-size: 2rem;
	}

	.landing-hero__actions {
		width: min(100%, 32rem);
		margin-inline: auto;
	}

	.landing-hero__cta {
		width: calc(100% - 2.4rem);
		margin-inline: auto;
		min-width: 0;
		min-height: 5rem;
		padding: 1.1rem 1.8rem;
		font-size: 2.6rem;
	}

	.landing-hero__problem-grid {
		grid-template-columns: 1fr;
		gap: 1.2rem;
	}

	.landing-problem-card {
		min-height: 0;
	}

	.landing-problem-card__icon {
		width: 7.2rem;
		height: 7.2rem;
		margin-bottom: 1.2rem;
		font-size: 4rem;
	}

	.landing-section-heading__title {
		font-size: 3rem;
	}

	.landing-why__grid {
		grid-template-columns: 1fr;
		gap: 2rem;
		margin-top: 3rem;
	}

	.landing-why-card {
		padding-right: 0;
	}

	.landing-services {
		padding: 4.6rem 0 5.2rem;
	}

	.landing-involved,
	.landing-thanks {
		padding: 4.8rem 0 5.2rem;
	}

	.landing-column-card__title {
		font-size: 2.7rem;
	}

	.landing-column-card__text {
		font-size: 1.8rem;
	}

	.landing-involved__link,
	.landing-thanks__link {
		font-size: 1.85rem;
	}

	.landing-services__card {
		margin-top: 2.6rem;
	}

	.landing-services__text {
		font-size: 1.8rem;
	}

	.landing-services__link {
		font-size: 1.95rem;
	}

	.landing-services__logo {
		max-width: 20rem;
	}

	.landing-thanks__intro {
		font-size: 2rem;
	}
}

table {
	margin: 0 auto;
	border-collapse: collapse;
}
table td {
	padding: 3px 20px;
	border: 1px var(--table-border-color) solid;
}
table thead {
	background: var(--table-header-bg);
}
table thead td {
	font-weight: 700;
	border: none;
}
table thead th {
	padding: 3px 20px;
}
table thead tr {
	border: 1px var(--table-header-bg) solid;
}
/* Alternate background colors for rows */
table tbody tr:nth-child(2n) {
	background: var(--table-alternate-bg);
}

blockquote {
	margin: 20px 0;
	padding: 0 20px;
	color: var(--fg);
	background-color: var(--quote-bg);
	border-block-start: 0.1em solid var(--quote-border);
	border-block-end: 0.1em solid var(--quote-border);
}

.warning {
	margin: 20px;
	padding: 0 20px;
	border-inline-start: 2px solid var(--warning-border);
}

.warning:before {
	position: absolute;
	width: 3rem;
	height: 3rem;
	margin-inline-start: calc(-1.5rem - 21px);
	content: "ⓘ";
	text-align: center;
	background-color: var(--bg);
	color: var(--warning-border);
	font-weight: bold;
	font-size: 2rem;
}

blockquote .warning:before {
	background-color: var(--quote-bg);
}

kbd {
	background-color: var(--table-border-color);
	border-radius: 4px;
	border: solid 1px var(--theme-popup-border);
	box-shadow: inset 0 -1px 0 var(--theme-hover);
	display: inline-block;
	font-size: var(--code-font-size);
	font-family: var(--mono-font);
	line-height: 10px;
	padding: 4px 5px;
	vertical-align: middle;
}

sup {
	/* Set the line-height for superscript and footnote references so that there
       isn't an awkward space appearing above lines that contain the footnote.

       See https://github.com/rust-lang/mdBook/pull/2443#discussion_r1813773583
       for an explanation.
    */
	line-height: 0;
}

.footnote-definition {
	font-size: 0.9em;
}
/* The default spacing for a list is a little too large. */
.footnote-definition ul,
.footnote-definition ol {
	padding-left: 20px;
}
.footnote-definition > li {
	/* Required to position the ::before target */
	position: relative;
}
.footnote-definition > li:target {
	scroll-margin-top: 50vh;
}
.footnote-reference:target {
	scroll-margin-top: 50vh;
}
/* Draws a border around the footnote (including the marker) when it is selected.
   TODO: If there are multiple linkbacks, highlight which one you just came
   from so you know which one to click.
*/
.footnote-definition > li:target::before {
	border: 2px solid var(--footnote-highlight);
	border-radius: 6px;
	position: absolute;
	top: -8px;
	right: -8px;
	bottom: -8px;
	left: -32px;
	pointer-events: none;
	content: "";
}
/* Pulses the footnote reference so you can quickly see where you left off reading.
   This could use some improvement.
*/
@media not (prefers-reduced-motion) {
	.footnote-reference:target {
		animation: fn-highlight 0.8s;
		border-radius: 2px;
	}

	@keyframes fn-highlight {
		from {
			background-color: var(--footnote-highlight);
		}
	}
}

.tooltiptext {
	position: absolute;
	visibility: hidden;
	color: var(--tooltip-fg);
	background-color: var(--tooltip-bg);
	transform: translateX(
		-50%
	); /* Center by moving tooltip 50% of its width left */
	left: -8px; /* Half of the width of the icon */
	top: -35px;
	font-size: 0.8em;
	text-align: center;
	border-radius: 6px;
	padding: 5px 8px;
	margin: 5px;
	z-index: 1000;
}
.tooltipped .tooltiptext {
	visibility: visible;
}

.chapter li.part-title {
	color: var(--sidebar-fg);
	margin: 5px 0px;
	font-family: var(--title-font);
	font-weight: bold;
}

.result-no-output {
	font-style: italic;
}