:root {
	color-scheme: light dark;
	--bg: #ffffff;
	--fg: #1c1c1e;
	--muted: #6b6b70;
	--accent: #0a58ca;
	--surface: #f4f4f6;
	--border: #e0e0e4;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #0e0f12;
		--fg: #e6e6e9;
		--muted: #8d8d95;
		--accent: #7aa7ff;
		--surface: #17181c;
		--border: #2a2c32;
	}
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	padding: 3rem 1.25rem;
	background: var(--bg);
	color: var(--fg);
	font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
	-webkit-font-smoothing: antialiased;
}

main {
	max-width: 42rem;
	margin: 0 auto;
}

h1 {
	margin: 0 0 1.5rem;
	font-size: 1.75rem;
	font-weight: 600;
	letter-spacing: -0.01em;
}

h2 {
	margin: 2.5rem 0 0.75rem;
	font-size: 1.1rem;
	font-weight: 600;
}

a {
	color: var(--accent);
	text-decoration: none;
}

a:hover,
a:focus-visible {
	text-decoration: underline;
	text-underline-offset: 0.2em;
}

ul {
	padding-left: 1.25rem;
}

pre {
	margin: 1.5rem 0;
	padding: 1rem 1.25rem;
	overflow-x: auto;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 0.5rem;
	font-size: 0.85rem;
	line-height: 1.5;
}

code,
.fpr {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.fpr {
	font-size: 0.9rem;
	word-break: break-all;
}

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

/* index */
.home {
	max-width: 36rem;
	min-height: 70vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	text-align: center;
}

.home .logo {
	display: block;
	width: 6rem;
	height: 6rem;
	margin: 0 auto 2.5rem;
}

.home h1 {
	margin-bottom: 1.5rem;
	font-size: 4rem;
	font-weight: 700;
}

.home .item {
	margin: 0 0 1.75rem;
}

.home .item > a {
	display: block;
	margin-bottom: 0.25rem;
	font-weight: 600;
}

.home .item .fpr {
	color: var(--muted);
}

.back {
	margin-top: 3rem;
}