:root {
	--neuroep-ink: #172523;
	--neuroep-muted: #60706d;
	--neuroep-paper: #fffdf8;
	--neuroep-panel: #f2f5f1;
	--neuroep-accent: #176d62;
	--neuroep-accent-strong: #0d5149;
	--neuroep-border: #d7dfdb;
	--neuroep-shadow: 0 14px 36px rgba(23, 37, 35, 0.12);
}

.neuroep-library,
.neuroep-reader {
	color: var(--neuroep-ink);
}

.neuroep-library__grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 360px));
	gap: 1.5rem;
	justify-content: start;
	margin-top: 1.25rem;
}

.neuroep-card {
	display: flex;
	flex-direction: column;
	overflow: hidden;
	background: #fff;
	border: 1px solid var(--neuroep-border);
	border-radius: 14px;
	box-shadow: 0 8px 24px rgba(23, 37, 35, 0.07);
}

.neuroep-card__cover {
	display: grid;
	place-items: center;
	aspect-ratio: 2 / 3;
	min-height: 0;
	background: linear-gradient(145deg, #dceae5, #f5eee2);
	text-decoration: none;
}

.neuroep-card__cover img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.neuroep-card__cover span {
	font-family: Georgia, serif;
	font-size: 5rem;
	color: var(--neuroep-accent);
}

.neuroep-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	padding: 1.1rem;
}

.neuroep-card__body h3 {
	margin: 0 0 0.6rem;
	font-size: 1.2rem;
}

.neuroep-card__progress,
.neuroep-reader__reading-progress > div {
	overflow: hidden;
	height: 6px;
	background: #dce5e1;
	border-radius: 999px;
}

.neuroep-card__progress {
	margin-top: auto;
}

.neuroep-card__progress span,
.neuroep-reader__reading-progress > div span {
	display: block;
	height: 100%;
	background: var(--neuroep-accent);
	transition: width 180ms ease;
}

.neuroep-card__meta {
	margin: 0.35rem 0 0.8rem;
	color: var(--neuroep-muted);
	font-size: 0.875rem;
}

.neuroep-card__button {
	text-align: center;
}

.neuroep-message {
	padding: 1rem 1.2rem;
	background: var(--neuroep-panel);
	border-left: 4px solid var(--neuroep-accent);
	border-radius: 6px;
}

.neuroep-reader {
	position: relative;
	display: flex;
	flex-direction: column;
	width: 100%;
	max-width: 100%;
	min-height: min(78vh, 900px);
	background: var(--neuroep-paper);
	border: 1px solid var(--neuroep-border);
	border-radius: 16px;
	box-shadow: var(--neuroep-shadow);
	overflow: hidden;
}

.neuroep-reader-page {
	width: 100%;
	max-width: 1200px;
	margin: 2rem auto;
	padding: 0 1rem;
	box-sizing: border-box;
	overflow-x: hidden;
}

body.neuroep-reader-view .page-header {
	display: none;
}

.neuroep-reader-page *,
.neuroep-reader-page *::before,
.neuroep-reader-page *::after {
	box-sizing: border-box;
}

.neuroep-reader__header {
	display: grid;
	grid-template-columns: minmax(110px, auto) 1fr minmax(110px, auto);
	align-items: center;
	padding: 0.8rem 1rem;
	background: #fff;
	border-bottom: 1px solid var(--neuroep-border);
}

.neuroep-reader__header h2 {
	grid-column: 2;
	margin: 0;
	font-size: 1.05rem;
	text-align: center;
}

.neuroep-reader__back {
	color: var(--neuroep-accent-strong);
	font-size: 0.9rem;
	text-decoration: none;
}

.neuroep-reader__toolbar,
.neuroep-reader__footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 0.65rem 0.8rem;
	background: var(--neuroep-panel);
}

.neuroep-reader button {
	min-height: 38px;
	padding: 0.45rem 0.75rem;
	color: var(--neuroep-ink);
	background: #fff;
	border: 1px solid var(--neuroep-border);
	border-radius: 8px;
	cursor: pointer;
}

.neuroep-reader button:hover,
.neuroep-reader button:focus-visible {
	color: #fff;
	background: var(--neuroep-accent);
	border-color: var(--neuroep-accent);
}

.neuroep-reader__font-controls {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.neuroep-reader__font-controls output {
	min-width: 3.7rem;
	color: var(--neuroep-muted);
	font-variant-numeric: tabular-nums;
	text-align: center;
}

.neuroep-reader__body {
	position: relative;
	display: flex;
	flex: 1;
	min-height: 0;
}

.neuroep-reader__stage {
	position: relative;
	flex: 1;
	min-width: 0;
	min-height: 0;
	overflow: hidden;
}

.neuroep-reader__status {
	position: absolute;
	inset: 0;
	z-index: 2;
	display: grid;
	place-items: center;
	padding: 2rem;
	background: var(--neuroep-paper);
	color: var(--neuroep-muted);
	text-align: center;
}

.neuroep-reader__status[hidden] {
	display: none;
}

.neuroep-reader__viewer {
	width: 100%;
	height: 100%;
	min-height: min(62vh, 720px);
	overflow: hidden;
}

.neuroep-reader__viewer iframe {
	display: block;
	max-width: 100%;
	border: 0;
}

.neuroep-reader__toc {
	position: absolute;
	inset: 0 auto 0 0;
	z-index: 4;
	width: min(88vw, 330px);
	padding: 0.8rem;
	background: #fff;
	border-right: 1px solid var(--neuroep-border);
	box-shadow: 10px 0 30px rgba(23, 37, 35, 0.15);
	overflow-y: auto;
	transform: translateX(-105%);
	transition: transform 180ms ease;
}

.neuroep-reader--toc-open .neuroep-reader__toc {
	transform: translateX(0);
}

.neuroep-reader__toc-heading {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 0.75rem;
}

.neuroep-reader__toc nav {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.neuroep-reader__toc nav button {
	padding-left: calc(0.7rem + var(--neuroep-toc-depth, 0) * 0.85rem);
	text-align: left;
}

.neuroep-reader__footer {
	border-top: 1px solid var(--neuroep-border);
}

.neuroep-reader__reading-progress {
	width: min(34vw, 260px);
	color: var(--neuroep-muted);
	font-size: 0.78rem;
	font-variant-numeric: tabular-nums;
	text-align: center;
}

.neuroep-reader__reading-progress > div {
	margin-top: 0.2rem;
}

@media (min-width: 901px) {
	.neuroep-reader-page {
		width: calc(100% - 2rem);
		max-width: none;
		margin: 1rem auto;
		padding: 0;
	}
}

@media (max-width: 600px) {
	.neuroep-reader {
		min-height: 82vh;
		border-radius: 10px;
	}

	.neuroep-reader__header {
		grid-template-columns: 1fr;
		gap: 0.35rem;
	}

	.neuroep-reader__header h2 {
		grid-column: 1;
		grid-row: 1;
		font-size: 1rem;
	}

	.neuroep-reader__back {
		grid-row: 2;
		text-align: center;
	}

	.neuroep-reader__toolbar span {
		display: none;
	}

	.neuroep-reader__viewer {
		min-height: 60vh;
	}

	.neuroep-reader__footer button {
		padding-inline: 0.55rem;
		font-size: 0.84rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.neuroep-reader__toc,
	.neuroep-card__progress span,
	.neuroep-reader__reading-progress > div span {
		transition: none;
	}
}