:root {
	--bg: #0a0a0a;
	--surface: #141414;
	--text: #f5f5f5;
	--muted: #a0a0a0;
	--accent: #4fc3f7;
	--accent-hover: #81d4fa;
	--border: #2a2a2a;

	--font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
	--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

	--rail: 22rem;
	--ease: 180ms ease;
	--radius: 8px;
}

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

html {
	color-scheme: dark;
	background: var(--bg);
}

html,
body {
	margin: 0;
	padding: 0;
	height: 100%;
	min-height: 100%;
}

body {
	font-family: var(--font);
	font-size: 1rem;
	font-weight: 400;
	line-height: 1.65;
	color: var(--text);
	background: var(--bg);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

::selection {
	background: color-mix(in srgb, var(--accent) 35%, transparent);
	color: var(--text);
}

h1,
h2,
p,
dl,
dt,
dd {
	margin: 0;
}

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

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

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

.skip {
	position: absolute;
	left: 0.75rem;
	top: 0.75rem;
	z-index: 20;
	padding: 0.5rem 0.75rem;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	color: var(--text);
	transform: translateY(-160%);
}

.skip:focus {
	transform: none;
	text-decoration: none;
}

.shell {
	display: grid;
	grid-template-columns: var(--rail) minmax(0, 1fr);
	grid-template-rows: minmax(0, 1fr);
	height: 100svh;
	min-height: 100svh;
}

.rail {
	position: sticky;
	top: 0;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	height: 100svh;
	padding: 2rem 2rem 1.75rem;
	border-right: 1px solid var(--border);
}

.rail-top {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 1.75rem;
}

.identity {
	display: flex;
	flex-direction: column;
	gap: 0.45rem;
}

.identity h1,
.identity .site-name {
	font-size: 1.25rem;
	font-weight: 600;
	letter-spacing: 0.03em;
	line-height: 1.2;
}

.wordmark {
	color: var(--text);
	text-decoration: none;
}

.wordmark:hover {
	color: var(--accent);
	text-decoration: none;
}

.role {
	font-size: 0.9375rem;
	line-height: 1.45;
	color: var(--muted);
}

.status {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--mono);
	font-size: 0.75rem;
	letter-spacing: 0.06em;
	color: var(--muted);
}

.status-dot {
	width: 0.4rem;
	height: 0.4rem;
	background: var(--accent);
}

.place {
	font-size: 0.875rem;
	color: var(--muted);
}

.menu {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
}

.menu a {
	color: var(--accent);
	font-size: 1.125rem;
	font-weight: 500;
	line-height: 1.45;
	text-decoration: none;
	text-underline-offset: 0.18em;
}

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

.menu a[aria-current='page'] {
	text-decoration: underline;
}

.rail-bottom {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.rail-bottom a {
	color: var(--muted);
	font-size: 0.875rem;
}

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

.btn {
	display: inline-flex;
	align-items: center;
	padding: 0.5rem 0.75rem;
	border-radius: var(--radius);
	border: 1px solid transparent;
	background: var(--accent);
	color: var(--bg);
	font: inherit;
	font-size: 0.9375rem;
	font-weight: 500;
	letter-spacing: 0.01em;
	text-decoration: none;
	transition:
		background var(--ease),
		color var(--ease);
}

.btn:hover {
	background: var(--accent-hover);
	color: var(--bg);
	text-decoration: none;
}

.card {
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 1.25rem 1.4rem;
	transition: border-color var(--ease);
}

@media (hover: hover) {
	.card:hover {
		border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
	}
}

.page {
	min-height: 0;
	overflow: auto;
	padding: 2rem clamp(1.5rem, 4vw, 4rem) 4rem;
}

.page-flush {
	position: relative;
	height: 100%;
	min-height: 0;
	padding: 0;
	overflow: hidden;
}

.page-flush .site-main {
	position: relative;
	height: 100%;
	min-height: 0;
}

@media (max-width: 860px) {
	.shell {
		grid-template-columns: 1fr;
		grid-template-rows: auto minmax(0, 1fr);
	}

	.rail {
		position: static;
		height: auto;
		border-right: 0;
		border-bottom: 1px solid var(--border);
		padding: 1.25rem 1.25rem 1.35rem;
		gap: 1.25rem;
	}

	.rail-top {
		gap: 1rem;
	}

	.rail-bottom {
		display: none;
	}

	.page:not(.page-flush) {
		padding: 1.75rem 1.25rem 3rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		transition-duration: 0.01ms !important;
	}
}