:root {
	color-scheme: dark;
	--kali-crimson: oklch(55% 0.23 20);
	--blood-red: oklch(34% 0.16 25);
	--lamp-gold: oklch(84% 0.16 85);
	--shrine-black: oklch(9% 0.025 20);
	--night-surface: oklch(16% 0.04 20);
	--raised-surface: oklch(23% 0.045 20);
	--soft-ash: oklch(84% 0.035 70);
	--smoke-pearl: oklch(97% 0.018 75);
	--page-bg: var(--shrine-black);
	--page-bg-soft: var(--night-surface);
	--surface: oklch(18% 0.045 20 / 0.82);
	--surface-strong: oklch(12% 0.035 20 / 0.92);
	--surface-raised: oklch(21% 0.05 20 / 0.94);
	--surface-deep: oklch(10% 0.03 20 / 0.96);
	--border: oklch(84% 0.16 85 / 0.18);
	--border-strong: oklch(84% 0.16 85 / 0.4);
	--border-lit: oklch(94% 0.055 78 / 0.54);
	--text: var(--smoke-pearl);
	--text-muted: var(--soft-ash);
	--heading: oklch(92% 0.055 78);
	--accent: var(--lamp-gold);
	--accent-deep: var(--blood-red);
	--gold: var(--lamp-gold);
	--gold-bright: oklch(94% 0.055 78);
	--gold-wash: oklch(84% 0.16 85 / 0.12);
	--gold-halo: oklch(84% 0.16 85 / 0.14);
	--crimson-wash: oklch(55% 0.23 20 / 0.22);
	--pearl-wash: oklch(94% 0.055 78 / 0.05);
	--gold-gradient: linear-gradient(
		90deg,
		var(--blood-red) 0%,
		var(--lamp-gold) 48%,
		var(--gold-bright) 100%
	);
	--shadow-ink: oklch(8% 0.025 20 / 0.32);
	--shadow-ink-soft: oklch(8% 0.025 20 / 0.22);
	--shadow: 0 24px 50px var(--shadow-ink);
	--radius: 16px;
	--space-tight: clamp(0.7rem, 1vw, 0.95rem);
	--space-reading: clamp(1rem, 1.8vw, 1.45rem);
	--space-section: clamp(1.8rem, 4vw, 3rem);
	--content-width: 1040px;
	--font-body:
		"Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
	--font-display: "Palatino Linotype", "Book Antiqua", Georgia, serif;
	--ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
	--ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
}
*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	min-height: 100vh;
	color: var(--text);
	font-family: var(--font-body);
	line-height: 1.7;
	background:
		radial-gradient(
			circle at top left,
			oklch(84% 0.16 85 / 0.1),
			transparent 30%
		),
		radial-gradient(circle at top right, var(--crimson-wash), transparent 28%),
		radial-gradient(circle at bottom center, var(--pearl-wash), transparent 34%),
		radial-gradient(
			ellipse at top,
			var(--page-bg-soft) 0%,
			oklch(12% 0.045 20) 45%,
			var(--shrine-black) 100%
		);
}

a {
	color: var(--accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.14em;
}

a:hover {
	color: var(--gold-bright);
}

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

main {
	width: min(var(--content-width), calc(100% - 2rem));
	margin: 0 auto;
	padding: 1.25rem 0 3rem;
}

.page-kicker,
.section-kicker {
	margin: 0 0 0.45rem;
	color: var(--gold);
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
	color: var(--heading);
	font-family: var(--font-display);
	line-height: 1.2;
}

h1 {
	margin: 0;
	font-size: clamp(2.1rem, 4.5vw, 3.3rem);
}

h2 {
	margin: 0;
	font-size: clamp(1.45rem, 2.4vw, 2rem);
}

h3 {
	margin: 1.05rem 0 0.45rem;
	font-size: 0.98rem;
}

h4 {
	margin: 0.95rem 0 0.35rem;
	font-size: 0.96rem;
}

code {
	padding: 0.12rem 0.34rem;
	border-radius: 999px;
	background: var(--gold-wash);
	color: var(--gold-bright);
}

.hero-panel {
	position: relative;
	margin-bottom: 1.6rem;
	padding: 1.4rem 1.2rem 1.5rem;
	border: 1px solid var(--border-strong);
	border-radius: calc(var(--radius) + 4px);
	background: linear-gradient(
		180deg,
		oklch(18% 0.045 20 / 0.86),
		var(--surface-deep)
	);
	box-shadow: var(--shadow);
	overflow: hidden;
}

.hero-panel::before {
	content: "";
	position: absolute;
	inset: 0 0 auto;
	height: 3px;
	background: var(--gold-gradient);
}

.intro {
	max-width: 72ch;
	margin: 0.9rem 0 0;
	color: var(--text-muted);
	font-size: 1.02rem;
}

.page-nav {
	margin-top: 1.1rem;
}

.page-nav ul {
	display: flex;
	flex-wrap: wrap;
	gap: 0.7rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.page-nav a {
	display: inline-flex;
	align-items: center;
	min-height: 2.75rem;
	padding: 0.72rem 1rem;
	border: 1px solid oklch(84% 0.16 85 / 0.3);
	border-radius: 999px;
	background: linear-gradient(
		180deg,
		oklch(24% 0.075 20 / 0.92),
		oklch(14% 0.045 20 / 0.94)
	);
	box-shadow: 0 10px 24px var(--shadow-ink-soft);
	color: var(--gold-bright);
	font-weight: 600;
	text-decoration: none;
	transition:
		transform 180ms var(--ease-out-quart),
		border-color 180ms var(--ease-out-quart),
		background-color 180ms var(--ease-out-quart),
		color 180ms var(--ease-out-quart),
		box-shadow 180ms var(--ease-out-quart);
}

.page-nav a:hover {
	transform: translateY(-1px);
	border-color: var(--border-lit);
	box-shadow: 0 14px 30px var(--shadow-ink-soft);
	background: linear-gradient(
		180deg,
		oklch(29% 0.095 20 / 0.96),
		oklch(16% 0.052 20 / 0.96)
	);
}

.page-nav a:active {
	transform: translateY(0);
	box-shadow: 0 8px 18px var(--shadow-ink-soft);
}

.ranges-panel {
	margin: 0 0 1.8rem;
}

.section-heading {
	margin-bottom: 1rem;
}

.range-list {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 0.95rem;
	margin: 0;
	padding: 0;
	list-style: none;
	counter-reset: range-card;
}

.range-list li {
	position: relative;
	padding: 1rem 1rem 1.05rem 1.15rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background:
		linear-gradient(180deg, oklch(22% 0.065 20 / 0.9), var(--surface-deep)),
		var(--surface-strong);
	box-shadow: var(--shadow);
	transition:
		transform 200ms var(--ease-out-quart),
		border-color 200ms var(--ease-out-quart),
		box-shadow 200ms var(--ease-out-quart);
}

.range-list li:has(a:hover),
.range-list li:focus-within {
	transform: translateY(-2px);
	border-color: var(--border-lit);
	box-shadow: 0 28px 58px var(--shadow-ink);
}

.range-list li:has(a:active) {
	transform: translateY(0);
}

.range-list li::before {
	counter-increment: range-card;
	content: counter(range-card, decimal-leading-zero);
	display: inline-block;
	margin-bottom: 0.7rem;
	color: var(--gold);
	font-size: 0.76rem;
	font-weight: 700;
	letter-spacing: 0.08em;
}

.range-list a {
	display: inline-flex;
	align-items: center;
	min-height: 2.75rem;
	margin: -0.2rem -0.25rem 0.3rem;
	padding: 0.2rem 0.25rem;
	color: var(--heading);
	font-family: var(--font-display);
	font-size: 1.16rem;
	font-weight: 700;
	text-decoration: none;
}

.range-list a:hover {
	color: var(--accent);
}

.range-list div {
	color: var(--text-muted);
}

.entries-stack {
	display: grid;
	gap: 0;
	margin-top: var(--space-reading);
	border-block: 1px solid var(--border);
}

.entry {
	position: relative;
	padding: var(--space-reading) clamp(0.2rem, 1.4vw, 1.15rem);
	border: 0;
	border-block-start: 1px solid var(--border);
	background: linear-gradient(
		180deg,
		oklch(18% 0.045 20 / 0.42),
		oklch(10% 0.03 20 / 0)
	);
	overflow: visible;
	contain: layout paint;
}

.entry:first-child {
	border-block-start: 0;
}

.entry:nth-child(10n + 1) {
	margin-top: var(--space-section);
	padding-top: calc(var(--space-reading) * 1.35);
	border-block-start-color: var(--border-strong);
}

.entry:first-child {
	margin-top: 0;
}

.entry::before {
	content: none;
}

.entry:target {
	border-radius: var(--radius);
	background: linear-gradient(
		180deg,
		oklch(19% 0.055 20 / 0.96) 0%,
		oklch(10% 0.03 20 / 0.98) 100%
	);
	box-shadow: 0 0 0 4px var(--gold-halo);
	outline: 1px solid var(--border-lit);
	outline-offset: -1px;
	animation: target-presence 420ms var(--ease-out-quint);
}

@keyframes target-presence {
	from {
		transform: translateY(0.35rem);
		opacity: 0.72;
	}
	to {
		transform: translateY(0);
		opacity: 1;
	}
}

.entry h2 {
	margin: 0 0 0.72rem;
	padding-right: 1rem;
	color: var(--heading);
	font-size: clamp(1.2rem, 2.1vw, 1.55rem);
	overflow-wrap: anywhere;
}

.entry h3 {
	padding-top: 0.2rem;
	border-top: 1px solid oklch(84% 0.16 85 / 0.16);
	color: var(--gold-bright);
}

.entry p {
	margin: 0 0 0.72rem;
	overflow-wrap: anywhere;
}

.entry p strong {
	color: var(--accent);
}

.study-notes,
.source-notes {
	margin-top: 1.9rem;
	padding: 1.35rem 1.2rem 0.8rem;
	border: 1px solid var(--border-strong);
	border-radius: calc(var(--radius) + 2px);
	background: linear-gradient(
		180deg,
		oklch(17% 0.05 20 / 0.86),
		oklch(9% 0.028 20 / 0.94)
	);
	box-shadow: var(--shadow);
}

.study-notes {
	margin-bottom: 1.8rem;
}

.study-notes h2,
.source-notes h2 {
	margin-bottom: 0.7rem;
}

.study-notes p,
.source-notes p,
.source-notes li {
	color: var(--text-muted);
}

.source-notes ul {
	margin: 0.85rem 0 0;
	padding-left: 1.2rem;
}

.source-notes li + li {
	margin-top: 0.35rem;
}

.source-notes a {
	display: inline-flex;
	align-items: center;
	min-height: 2.75rem;
}

@media (max-width: 720px) {
	main {
		width: min(var(--content-width), calc(100% - 1.2rem));
		padding-top: 0.85rem;
		padding-bottom: 2.3rem;
	}

	.hero-panel {
		padding: 1rem;
	}

	.page-nav ul {
		gap: 0.55rem;
	}

	.page-nav a {
		width: 100%;
		justify-content: center;
		text-align: center;
	}

	.range-list {
		grid-template-columns: 1fr;
	}

	.entry {
		padding-inline: 0.15rem;
	}

	.source-notes {
		padding: 1rem 0.95rem 0.7rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}