:root {
	color-scheme: light dark;
	--text-color: #2a2e3a;
	--link-color: #2b6fc0;
	--link-visited: #7b5ea7;
	--chrome-text: rgba(255, 255, 255, 0.85);
	--header-gradient-top: #2b9ea0;
	--header-gradient-bottom: #1f8082;
	--nav-gradient-top: #e8a820;
	--nav-gradient-bottom: #d49618;
	--nav-border: rgba(0, 0, 0, 0.2);
	--body-background: #f5f8fc;
	--content-width: 850px;
	--separator-color: #d4dce8;
	--secondary-text: rgba(0, 0, 0, 0.45);
	--pre-background: rgba(0, 0, 0, 0.05);
	--footer-background: #1e2430;
	--footer-text: #8894a0;
	--footer-link: #aeb8c4;
	--footer-link-hover: #d4dde8;
	--footer-border: #10141a;
	--note-color: rgba(0, 0, 0, 0.35);
	--screenshot-shadow: 0 10px 15px 10px rgba(164, 164, 164, 0.1);
	--warning-background-color: rgba(232, 168, 32, 0.1);
	--warning-border-color: #d49618;
	--info-background-color: rgba(40, 167, 69, 0.1);
	--info-border-color: #28a745;
	--nav-shadow: #fff;
}

@media (prefers-color-scheme: dark) {
	:root {
		--text-color: #c4ccd5;
		--link-color: #5c9ce0;
		--link-visited: #9a7cc8;
		--header-gradient-top: #1a5e60;
		--header-gradient-bottom: #144a4c;
		--nav-gradient-top: #8a6a10;
		--nav-gradient-bottom: #70560c;
		--nav-border: #000;
		--body-background: #101418;
		--separator-color: #282e38;
		--secondary-text: rgba(255, 255, 255, 0.45);
		--pre-background: rgba(255, 255, 255, 0.05);
		--footer-background: #101418;
		--footer-text: #667080;
		--footer-link: #8894a0;
		--footer-link-hover: #c4ccd5;
		--footer-border: #080a0e;
		--note-color: rgba(255, 255, 255, 0.35);
		--screenshot-shadow: none;
		--warning-background-color: rgba(232, 168, 32, 0.14);
		--warning-border-color: #8a6a10;
		--info-background-color: rgba(40, 167, 69, 0.14);
		--info-border-color: #1e7e34;
		--nav-shadow: transparent;
	}
}

/* Reset and base */

html, body {
	margin: 0;
	padding: 0;
}

body {
	font-family: Verdana, Geneva, sans-serif;
	font-size: 17px;
	line-height: 1.6;
	color: var(--text-color);
	background-color: var(--body-background);
}

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

a {
	text-decoration: none;
	color: var(--link-color);
	text-underline-offset: 3px;
}
a:visited {
	color: var(--link-visited);
}
a:hover {
	text-decoration: underline;
}

/* Header */

#header-background {
	background: linear-gradient(to bottom, var(--header-gradient-top), var(--header-gradient-bottom));
}
header {
	color: #fff;
	max-width: var(--content-width);
	margin: 0 auto;
	padding: 14px 2px;
	display: flex;
	align-items: center;
	gap: 14px;
}
header img {
	display: block;
	border-radius: 12px;
}
header h1 {
	margin: 0;
	font-size: 20px;
	font-weight: bold;
}
header a:link, header a:visited {
	color: var(--chrome-text);
	text-decoration: none;
}
header a:hover {
	text-decoration: underline;
	text-underline-offset: 3px;
}

/* Nav bar */

#topnav-background {
	background: linear-gradient(to bottom, var(--nav-gradient-top), var(--nav-gradient-bottom));
	border-bottom: 1px solid var(--nav-border);
	box-shadow: 0 1px 0 var(--nav-shadow);
}
#topnav {
	max-width: var(--content-width);
	margin: 0 auto;
	padding: 6px 2px;
	text-align: right;
	font-size: 17px;
	font-weight: bold;
}
#topnav a {
	color: var(--chrome-text);
	text-decoration: none;
	margin-left: 16px;
}
#topnav a:visited {
	color: var(--chrome-text);
}
#topnav a:hover {
	text-decoration: underline;
	text-underline-offset: 3px;
}

/* Content area */

main {
	max-width: var(--content-width);
	margin: 0 auto;
	padding-top: 25px;
	padding-bottom: 46px;
}

main a {
	text-decoration: underline;
}

/* Headings */

h1 {
	font-size: 34px;
	line-height: 1.2;
}
h2 {
	font-size: 28px;
	margin-top: 2rem;
}
h3 {
	font-size: 22px;
}
h4 {
	margin-bottom: 1em;
}

/* Footer */

#footer-background {
	background-color: var(--footer-background);
	border-top: 1px solid var(--footer-border);
}
footer {
	max-width: var(--content-width);
	margin: 0 auto;
	padding: 40px 2px 44px 2px;
	font-size: 17px;
	color: var(--footer-text);
	text-align: left;
}
footer a {
	color: var(--footer-link);
	text-decoration: underline;
	text-underline-offset: 3px;
}
footer a:visited {
	color: var(--footer-link);
}
footer a:hover {
	color: var(--footer-link-hover);
}
footer p {
	margin: 0;
	line-height: 1.6;
}
footer p + p {
	margin-top: 20px;
}

/* Code */

code, pre {
	font-family: "SF Mono", Menlo, "Courier", monospace;
	font-size: 16px;
}

p > code, pre {
	background-color: var(--pre-background);
	border-radius: 3px;
	padding: 0 0.25em;
}

pre {
	white-space: pre-wrap;
	word-wrap: break-word;
	padding: 12px 16px;
	border-radius: 6px;
}

/* Images */

.centeredImage {
	display: block;
	margin-left: auto;
	margin-right: auto;
}

.listImage {
	margin-top: 1.7em;
	margin-bottom: 1.7em;
}

.iosScreenshot {
	display: block;
	margin-left: auto;
	margin-right: auto;
	width: 100%;
	max-width: 390px;
}

.ios-inline-button {
	height: 1em;
	vertical-align: -0.1em;
}

.ios-inline-button-large {
	height: 1.2em;
	vertical-align: -0.2em;
}

.round {
	border-radius: 8px;
}

/* Notes */

p.note, span.note {
	font-size: 0.8em;
	line-height: 1.4em;
	margin-top: -1.2em;
	color: var(--note-color);
}

/* Columns */

@media (min-width: 760px) {
	div.columns {
		display: flex;
	}
	div.column-left {
		padding: 0 0.5em 0 0;
	}
	div.column-right {
		padding: 0 0 0 0.5em;
	}
}

/* Tables */

table {
	font-size: inherit;
	line-height: inherit;
}

th, caption {
	font-size: 22px;
}

table.keyboard-shortcuts {
	width: 80%;
	margin: 0 auto 2em auto;
	-webkit-border-horizontal-spacing: 0;
	-webkit-border-vertical-spacing: 0;
}

table.keyboard-shortcuts tbody tr:nth-child(odd) {
	background-color: var(--pre-background);
}

table.keyboard-shortcuts tr td:first-child {
	width: 70%;
}

/* Callout boxes */

div.warning,
div.info {
	margin: 1.5em 0;
	padding: 0.75em 1em;
	border-radius: 4px;
}

div.warning {
	border-left-color: var(--warning-border-color);
	background-color: var(--warning-background-color);
}

div.info {
	border-left-color: var(--info-border-color);
	background-color: var(--info-background-color);
}

/* Responsive */

@media (max-width: 700px) {
	header {
		padding: 14px 12px;
	}
	#topnav {
		padding: 4px 12px;
	}
	main {
		padding: 32px 12px 0 12px;
	}
	footer {
		padding: 12px 12px 24px 12px;
	}
}

@media (max-width: 480px) {
	header {
		padding: 10px 12px;
		font-size: 17px;
	}
	#topnav {
		font-size: 15px;
		padding: 2px 12px;
		text-align: left;
	}
	#topnav a {
		margin-left: 0;
		margin-right: 10px;
	}
	main {
		padding-top: 24px;
	}
}