:root {
	color-scheme: dark;
	--bg: #0a0a0a;
	--fg: #f3f3f3;
	--accent: #e63946;
	--muted: #888;
	--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--fg);
	font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 2rem 1rem;
}

main {
	max-width: 900px;
	width: 100%;
	text-align: center;
}

h1 {
	font-size: 2rem;
	letter-spacing: 0.05em;
	margin: 0 0 0.5rem;
}

.tag {
	color: var(--muted);
	margin: 0 0 2.5rem;
	font-size: 0.95rem;
}

.tag em {
	color: var(--fg);
	font-style: italic;
}

#clock {
	margin: 2rem 0;
}

.readout {
	display: flex;
	align-items: baseline;
	justify-content: center;
	gap: 0.75rem;
	flex-wrap: wrap;
}

.count {
	font-family: var(--mono);
	font-size: clamp(2.5rem, 10vw, 6rem);
	font-weight: 700;
	font-variant-numeric: tabular-nums;
	line-height: 1;
}

.era {
	font-family: var(--mono);
	font-size: clamp(1rem, 3vw, 1.75rem);
	letter-spacing: 0.3em;
	color: var(--accent);
	font-weight: 700;
}

.unit {
	font-family: var(--mono);
	color: var(--muted);
	font-size: 1rem;
	margin-top: 0.5rem;
	letter-spacing: 0.2em;
}

.legend {
	display: flex;
	justify-content: center;
	gap: 2rem;
	margin: 1.5rem 0 0;
	font-family: var(--mono);
	font-size: 0.85rem;
}

.legend > div {
	display: flex;
	align-items: baseline;
	gap: 0.5rem;
}

.legend dt {
	color: var(--accent);
	font-weight: 700;
	letter-spacing: 0.15em;
	margin: 0;
}

.legend dd {
	color: var(--muted);
	margin: 0;
}

.now {
	margin: 3rem 0;
	font-family: var(--mono);
}

.now-label {
	color: var(--muted);
	font-size: 0.8rem;
	letter-spacing: 0.2em;
	margin-bottom: 0.25rem;
}

.now-value {
	font-size: 1.1rem;
}

.api {
	margin-top: 4rem;
	text-align: left;
	border-top: 1px solid #222;
	padding-top: 2rem;
}

.api h2 {
	font-size: 1.1rem;
	letter-spacing: 0.1em;
	color: var(--muted);
	font-weight: 500;
	text-transform: uppercase;
	margin: 0 0 0.5rem;
}

.api h3 {
	font-size: 0.95rem;
	font-weight: 500;
	color: var(--fg);
	margin: 1.75rem 0 0.5rem;
}

.api pre {
	background: #111;
	border: 1px solid #1f1f1f;
	padding: 1rem;
	overflow-x: auto;
	font-size: 0.9rem;
	border-radius: 4px;
	margin: 0 0 0.5rem;
}

.api code {
	font-family: var(--mono);
	color: var(--fg);
}

.aside {
	color: var(--muted);
	font-size: 0.85rem;
}