/*
 * Shared chrome for the demo library.
 *
 * Loaded by the index page and by every demo page, so demos get a consistent
 * header, back-link and typography for free without a build step.
 * Demo-specific styling belongs in the demo's own folder.
 */

:root {
	color-scheme: light dark;

	--bg: #fbfaf9;
	--bg-raised: #ffffff;
	--border: #e5e1dc;
	--border-strong: #d2ccc4;
	--text: #1c1a18;
	--text-muted: #6b645c;
	--accent: #c2410c;
	--accent-soft: #fff1e9;
	--shadow: 0 1px 2px rgb(28 26 24 / 0.05), 0 8px 24px -12px rgb(28 26 24 / 0.15);

	--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, sans-serif;
	--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

	--radius: 10px;
	--measure: 68ch;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #16151a;
		--bg-raised: #1e1d23;
		--border: #2e2c34;
		--border-strong: #413e48;
		--text: #ece9e6;
		--text-muted: #a09a95;
		--accent: #fb923c;
		--accent-soft: #2a1d14;
		--shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px -12px rgb(0 0 0 / 0.6);
	}
}

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

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-sans);
	font-size: 16px;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

a {
	color: var(--accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 2px;
}

code {
	font-family: var(--font-mono);
	font-size: 0.9em;
	background: var(--accent-soft);
	padding: 0.1em 0.35em;
	border-radius: 4px;
}

.wrap {
	max-width: 1040px;
	margin: 0 auto;
	padding: 0 24px;
}

/* --- Library index ------------------------------------------------------ */

.masthead {
	padding: 72px 0 40px;
	border-bottom: 1px solid var(--border);
}

.masthead h1 {
	margin: 0 0 8px;
	font-size: clamp(2rem, 5vw, 2.75rem);
	line-height: 1.15;
	letter-spacing: -0.02em;
}

.masthead p {
	margin: 0;
	max-width: var(--measure);
	color: var(--text-muted);
	font-size: 1.0625rem;
}

.grid {
	list-style: none;
	margin: 40px 0 0;
	padding: 0;
	display: grid;
	gap: 16px;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
}

.card {
	display: flex;
	flex-direction: column;
	gap: 8px;
	padding: 20px;
	background: var(--bg-raised);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	text-decoration: none;
	color: inherit;
	transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover,
.card:focus-visible {
	border-color: var(--border-strong);
	transform: translateY(-2px);
	box-shadow: var(--shadow);
}

.card h2 {
	margin: 0;
	font-size: 1.0625rem;
	letter-spacing: -0.01em;
}

.card p {
	margin: 0;
	flex: 1;
	color: var(--text-muted);
	font-size: 0.9375rem;
}

.tags {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin-top: 4px;
}

.tag {
	font-family: var(--font-mono);
	font-size: 0.6875rem;
	letter-spacing: 0.02em;
	text-transform: uppercase;
	color: var(--text-muted);
	border: 1px solid var(--border);
	border-radius: 999px;
	padding: 2px 8px;
}

.empty {
	margin: 40px 0 0;
	padding: 32px;
	border: 1px dashed var(--border-strong);
	border-radius: var(--radius);
	color: var(--text-muted);
	text-align: center;
}

.colophon {
	margin: 64px 0 40px;
	padding-top: 20px;
	border-top: 1px solid var(--border);
	color: var(--text-muted);
	font-family: var(--font-mono);
	font-size: 0.75rem;
	display: flex;
	flex-wrap: wrap;
	gap: 4px 16px;
}

/* --- Demo page chrome --------------------------------------------------- */

.demo-bar {
	display: flex;
	align-items: baseline;
	flex-wrap: wrap;
	gap: 8px 16px;
	padding: 16px 24px;
	border-bottom: 1px solid var(--border);
	background: var(--bg-raised);
}

.demo-bar a {
	font-size: 0.875rem;
	text-decoration: none;
	color: var(--text-muted);
}

.demo-bar a:hover {
	color: var(--accent);
}

.demo-bar h1 {
	margin: 0;
	font-size: 1rem;
	font-weight: 600;
	letter-spacing: -0.01em;
}

.demo-bar .demo-blurb {
	margin: 0;
	color: var(--text-muted);
	font-size: 0.875rem;
}

.demo-body {
	padding: 24px;
}

/* Controls strip that demos can reuse. */

.controls {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 12px 20px;
	margin-top: 16px;
	font-size: 0.875rem;
}

.controls label {
	display: flex;
	align-items: center;
	gap: 8px;
	color: var(--text-muted);
}

.controls input[type="range"] {
	accent-color: var(--accent);
	width: 130px;
}

.controls output {
	font-family: var(--font-mono);
	font-size: 0.8125rem;
	color: var(--text);
	min-width: 4ch;
}

.controls button {
	font: inherit;
	font-size: 0.875rem;
	color: var(--text);
	background: var(--bg-raised);
	border: 1px solid var(--border-strong);
	border-radius: 7px;
	padding: 5px 12px;
	cursor: pointer;
}

.controls button:hover {
	border-color: var(--accent);
	color: var(--accent);
}

/* --- 404 ---------------------------------------------------------------- */

.notfound {
	min-height: 70vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 8px;
	text-align: center;
}

.notfound h1 {
	margin: 0;
	font-size: 4rem;
	font-family: var(--font-mono);
	letter-spacing: -0.03em;
}