:root {
	color-scheme: dark;
	--bg: #121212;
	--text: #e8e4dc;
	--muted: #9a9488;
	--line: #2a2a2a;
	--btn: #242424;
}

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

html,
body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
	line-height: 1.55;
}

body {
	min-height: 100dvh;
	padding: calc(20px + env(safe-area-inset-top, 0px)) calc(20px + env(safe-area-inset-right, 0px))
		calc(32px + env(safe-area-inset-bottom, 0px)) calc(20px + env(safe-area-inset-left, 0px));
}

main {
	max-width: 44rem;
	margin: 0 auto;
}

h1 {
	font-size: 1.6rem;
	margin: 0 0 0.4rem;
}

h2 {
	font-size: 1.1rem;
	margin: 1.8rem 0 0.6rem;
}

p,
li {
	color: var(--muted);
}

a {
	color: var(--text);
}

.back {
	display: inline-block;
	margin-bottom: 1.4rem;
	padding: 10px 14px;
	border: 1px solid var(--line);
	border-radius: 10px;
	text-decoration: none;
	background: var(--btn);
}

.lead {
	color: var(--text);
}

ul {
	padding-left: 1.2rem;
}

.jump-nav {
	display: flex;
	flex-wrap: wrap;
	gap: 6px 10px;
	margin-bottom: 1.6rem;
	font-size: 0.95rem;
}

.jump-nav span {
	color: var(--muted);
}

hr {
	border: none;
	border-top: 1px solid var(--line);
	margin: 2.4rem 0;
}

section {
	scroll-margin-top: 1rem;
}