/*
 * AD Digital Reader — estilos del frontend.
 * Todo el CSS está aislado bajo .ad-reader-app, .ad-reader, .ad-book y .ad-library.
 */

.ad-reader-app,
.ad-reader,
.ad-book,
.ad-library {
	--ad-reader-font-scale: 1;
	--ad-reader-line-height: 1.7;
	--ad-reader-bg: #f7f5f0;
	--ad-reader-surface: #ffffff;
	--ad-reader-text: #1d2327;
	--ad-reader-muted: #5b6470;
	--ad-reader-accent: #8a3b12;
	--ad-reader-accent-contrast: #ffffff;
	--ad-reader-border: #e2ddd3;
	--ad-reader-soft: #f1ede4;
	--ad-reader-shadow: 0 10px 30px rgba(20, 24, 31, 0.09);
	--ad-reader-radius: 14px;
	--ad-reader-serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
	--ad-reader-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	box-sizing: border-box;
}

.ad-reader-app[data-theme="sepia"],
.ad-reader[data-theme="sepia"] {
	--ad-reader-bg: #efe4cf;
	--ad-reader-surface: #fbf3e3;
	--ad-reader-text: #3b2f22;
	--ad-reader-muted: #6d5b45;
	--ad-reader-accent: #8a4b16;
	--ad-reader-border: #ddcdb0;
	--ad-reader-soft: #f3e7d0;
}

.ad-reader-app[data-theme="dark"],
.ad-reader[data-theme="dark"] {
	--ad-reader-bg: #14161a;
	--ad-reader-surface: #1c1f24;
	--ad-reader-text: #e8e6e1;
	--ad-reader-muted: #a8adb6;
	--ad-reader-accent: #f0a05a;
	--ad-reader-accent-contrast: #24160a;
	--ad-reader-border: #31363d;
	--ad-reader-soft: #24282e;
	--ad-reader-shadow: 0 12px 34px rgba(0, 0, 0, 0.45);
}

.ad-reader-app *,
.ad-reader-app *::before,
.ad-reader-app *::after,
.ad-reader *,
.ad-reader *::before,
.ad-reader *::after,
.ad-book *,
.ad-book *::before,
.ad-book *::after,
.ad-library *,
.ad-library *::before,
.ad-library *::after {
	box-sizing: inherit;
}

/* ---------------------------------------------------------------- Lector */

.ad-reader-app {
	background: var(--ad-reader-bg);
	padding: clamp(12px, 3vw, 40px);
	color: var(--ad-reader-text);
	font-family: var(--ad-reader-sans);
}

.ad-reader-app--inline {
	padding: 0;
	background: transparent;
}

.ad-reader {
	position: relative;
	max-width: 1180px;
	margin: 0 auto;
	background: var(--ad-reader-surface);
	border: 1px solid var(--ad-reader-border);
	border-radius: var(--ad-reader-radius);
	box-shadow: var(--ad-reader-shadow);
	overflow: hidden;
}

.ad-reader__bar {
	position: sticky;
	top: 0;
	z-index: 30;
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 10px 16px 14px;
	background: var(--ad-reader-surface);
	border-bottom: 1px solid var(--ad-reader-border);
}

.ad-reader__book-title {
	flex: 1 1 auto;
	margin: 0;
	font-family: var(--ad-reader-serif);
	font-size: 1rem;
	font-weight: 600;
	line-height: 1.3;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.ad-reader__bar-actions {
	display: flex;
	align-items: center;
	gap: 8px;
}

.ad-reader__progress-label {
	font-size: 0.8rem;
	font-variant-numeric: tabular-nums;
	color: var(--ad-reader-muted);
	min-width: 3ch;
	text-align: right;
}

.ad-reader__progress {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	height: 3px;
	background: var(--ad-reader-soft);
}

.ad-reader__progress-bar {
	display: block;
	height: 100%;
	width: 0;
	background: var(--ad-reader-accent);
	transition: width 160ms ease-out;
}

.ad-reader__icon-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	min-height: 44px;
	min-width: 44px;
	padding: 6px 10px;
	border: 1px solid transparent;
	border-radius: 10px;
	background: transparent;
	color: var(--ad-reader-text);
	font: inherit;
	cursor: pointer;
}

.ad-reader__icon-button:hover {
	background: var(--ad-reader-soft);
}

.ad-reader__back {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 auto;
	min-width: 44px;
	min-height: 44px;
	border-radius: 10px;
	color: var(--ad-reader-text);
	font-size: 1.25rem;
	line-height: 1;
	text-decoration: none;
}

.ad-reader__back:hover {
	background: var(--ad-reader-soft);
}

.ad-reader__icon-button:focus-visible,
.ad-reader__back:focus-visible,
.ad-reader__button:focus-visible,
.ad-reader__toc-link:focus-visible,
.ad-reader__field input:focus-visible,
.ad-reader__themes input:focus-visible + span,
.ad-reader a:focus-visible {
	outline: 3px solid var(--ad-reader-accent);
	outline-offset: 2px;
}

.ad-reader__icon {
	font-size: 1.1rem;
	line-height: 1;
}

.ad-reader__icon--text {
	font-family: var(--ad-reader-serif);
	font-weight: 700;
}

.ad-reader__icon-label {
	font-size: 0.85rem;
}

.ad-reader__body {
	display: block;
	position: relative;
}

.ad-reader__reading {
	max-width: 46rem;
	margin: 0 auto;
	padding: clamp(20px, 4vw, 44px) clamp(16px, 4vw, 36px) 48px;
}

.ad-reader__status-line {
	min-height: 1.4em;
	margin: 0 0 8px;
	font-size: 0.78rem;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--ad-reader-muted);
}

.ad-reader__content {
	font-family: var(--ad-reader-serif);
	font-size: calc(1.06rem * var(--ad-reader-font-scale));
	line-height: var(--ad-reader-line-height);
	color: var(--ad-reader-text);
	outline: none;
	overflow-wrap: break-word;
}

.ad-reader__content:focus-visible {
	outline: none;
}

.ad-reader__loading,
.ad-reader__error,
.ad-reader__noscript {
	font-family: var(--ad-reader-sans);
	font-size: 0.95rem;
	color: var(--ad-reader-muted);
	padding: 16px 0;
}

.ad-reader__error {
	color: #a02c1c;
}

.ad-reader-app[data-theme="dark"] .ad-reader__error {
	color: #ff9d8a;
}

.ad-reader-block {
	margin: 0 0 1em;
	scroll-margin-top: 96px;
}

.ad-reader-block > :first-child {
	margin-top: 0;
}

.ad-reader-block > :last-child {
	margin-bottom: 0;
}

.ad-reader-block p {
	margin: 0 0 1em;
}

.ad-reader-block h1,
.ad-reader-block h2,
.ad-reader-block h3,
.ad-reader-block h4,
.ad-reader-block h5,
.ad-reader-block h6 {
	font-family: var(--ad-reader-serif);
	line-height: 1.25;
	margin: 1.6em 0 0.6em;
	letter-spacing: -0.01em;
}

.ad-reader-block h1 {
	font-size: 1.7em;
}

.ad-reader-block h2 {
	font-size: 1.42em;
}

.ad-reader-block h3 {
	font-size: 1.22em;
}

.ad-reader-block h4,
.ad-reader-block h5,
.ad-reader-block h6 {
	font-size: 1.06em;
}

.ad-reader-block a {
	color: var(--ad-reader-accent);
	text-decoration: underline;
	text-underline-offset: 0.15em;
}

.ad-reader-block a[data-ad-section]::after {
	content: " →";
	font-size: 0.85em;
	text-decoration: none;
}

.ad-reader-block blockquote {
	margin: 0 0 1em;
	padding: 0.4em 0 0.4em 1.1em;
	border-left: 3px solid var(--ad-reader-accent);
	color: var(--ad-reader-muted);
	font-style: italic;
}

.ad-reader-block ul,
.ad-reader-block ol {
	margin: 0 0 1em;
	padding-left: 1.4em;
}

.ad-reader-block li {
	margin: 0.3em 0;
}

.ad-reader-block img {
	max-width: 100%;
	height: auto;
	display: block;
	margin: 1.2em auto;
	border-radius: 8px;
}

.ad-reader-block figure {
	margin: 1.4em 0;
}

.ad-reader-block figcaption {
	font-family: var(--ad-reader-sans);
	font-size: 0.85em;
	color: var(--ad-reader-muted);
	text-align: center;
	margin-top: 0.5em;
}

.ad-reader-block pre {
	overflow-x: auto;
	padding: 14px 16px;
	background: var(--ad-reader-soft);
	border-radius: 10px;
	font-size: 0.85em;
	line-height: 1.55;
}

.ad-reader-block code {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: 0.92em;
}

.ad-reader-block table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9em;
	font-family: var(--ad-reader-sans);
}

.ad-reader-block [data-ad-table] {
	overflow-x: auto;
	margin: 0 0 1em;
}

.ad-reader-block td,
.ad-reader-block th {
	border: 1px solid var(--ad-reader-border);
	padding: 8px 10px;
	text-align: left;
	vertical-align: top;
}

.ad-reader-block th {
	background: var(--ad-reader-soft);
}

.ad-reader-block hr {
	border: 0;
	border-top: 1px solid var(--ad-reader-border);
	margin: 2em auto;
	width: 40%;
}

.ad-reader-block .ad-reader-img-alt {
	font-family: var(--ad-reader-sans);
	font-size: 0.85em;
	color: var(--ad-reader-muted);
	font-style: italic;
}

/* Navegación y botones */

.ad-reader__nav {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-top: 32px;
	padding-top: 18px;
	border-top: 1px solid var(--ad-reader-border);
	font-family: var(--ad-reader-sans);
}

.ad-reader__position {
	font-size: 0.85rem;
	color: var(--ad-reader-muted);
	text-align: center;
}

.ad-reader__button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	min-height: 44px;
	padding: 10px 18px;
	border: 1px solid var(--ad-reader-border);
	border-radius: 10px;
	background: var(--ad-reader-surface);
	color: var(--ad-reader-text);
	font: inherit;
	font-size: 0.95rem;
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
	cursor: pointer;
}

.ad-reader__button:hover:not(:disabled) {
	background: var(--ad-reader-soft);
}

.ad-reader__button:disabled {
	opacity: 0.45;
	cursor: not-allowed;
}

.ad-reader__button--primary {
	background: var(--ad-reader-accent);
	border-color: var(--ad-reader-accent);
	color: var(--ad-reader-accent-contrast);
}

.ad-reader__button--primary:hover:not(:disabled) {
	background: var(--ad-reader-accent);
	filter: brightness(1.08);
}

.ad-reader__button--secondary {
	border-color: var(--ad-reader-accent);
	color: var(--ad-reader-accent);
}

/* Índice */

.ad-reader__toc {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	z-index: 40;
	width: min(320px, 86vw);
	padding: 18px;
	background: var(--ad-reader-surface);
	border-right: 1px solid var(--ad-reader-border);
	box-shadow: var(--ad-reader-shadow);
	overflow-y: auto;
}

.ad-reader__toc-header,
.ad-reader__settings-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 12px;
}

.ad-reader__toc-title,
.ad-reader__settings-header h2 {
	margin: 0;
	font-family: var(--ad-reader-serif);
	font-size: 1.05rem;
	font-weight: 700;
}

.ad-reader__toc-list {
	list-style: none;
	margin: 0;
	padding: 0;
	counter-reset: none;
}

.ad-reader__toc-link {
	display: block;
	width: 100%;
	padding: 10px 12px;
	border: 0;
	border-radius: 8px;
	background: transparent;
	color: var(--ad-reader-text);
	font-family: var(--ad-reader-sans);
	font-size: 0.9rem;
	line-height: 1.4;
	text-align: left;
	cursor: pointer;
}

.ad-reader__toc-link:hover {
	background: var(--ad-reader-soft);
}

.ad-reader__toc-link.is-current {
	background: var(--ad-reader-soft);
	font-weight: 700;
	box-shadow: inset 3px 0 0 var(--ad-reader-accent);
}

.ad-reader__toc-link.is-locked {
	color: var(--ad-reader-muted);
}

.ad-reader__toc-link.is-locked::after {
	content: " 🔒";
	font-size: 0.8em;
}

/* Ajustes */

.ad-reader__settings {
	position: absolute;
	top: 64px;
	right: 16px;
	z-index: 40;
	width: min(320px, 88vw);
	padding: 18px;
	background: var(--ad-reader-surface);
	border: 1px solid var(--ad-reader-border);
	border-radius: 12px;
	box-shadow: var(--ad-reader-shadow);
	font-family: var(--ad-reader-sans);
}

.ad-reader__field {
	display: flex;
	flex-direction: column;
	gap: 6px;
	margin-bottom: 16px;
}

.ad-reader__field label,
.ad-reader__themes legend {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--ad-reader-muted);
}

.ad-reader__field input[type="range"] {
	width: 100%;
	accent-color: var(--ad-reader-accent);
	min-height: 32px;
}

.ad-reader__field input[type="text"] {
	min-height: 44px;
	padding: 10px 12px;
	border: 1px solid var(--ad-reader-border);
	border-radius: 8px;
	background: var(--ad-reader-surface);
	color: var(--ad-reader-text);
	font: inherit;
	font-size: 1rem;
	letter-spacing: 0.06em;
}

.ad-reader__themes {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	border: 0;
	padding: 0;
	margin: 0;
}

.ad-reader__themes legend {
	width: 100%;
	margin-bottom: 6px;
}

.ad-reader__themes label {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 8px 10px;
	border: 1px solid var(--ad-reader-border);
	border-radius: 8px;
	font-size: 0.85rem;
	cursor: pointer;
}

/* Muro de pago */

.ad-reader__paywall {
	margin-top: 32px;
	padding: clamp(18px, 4vw, 30px);
	background: var(--ad-reader-soft);
	border: 1px solid var(--ad-reader-border);
	border-radius: 12px;
	font-family: var(--ad-reader-sans);
}

.ad-reader__paywall-title {
	margin: 0 0 8px;
	font-family: var(--ad-reader-serif);
	font-size: 1.35rem;
}

.ad-reader__paywall-text {
	margin: 0 0 18px;
	color: var(--ad-reader-muted);
	font-size: 0.95rem;
}

.ad-reader__redeem {
	display: grid;
	gap: 12px;
	max-width: 420px;
}

.ad-reader__redeem .ad-reader__button {
	width: 100%;
}

.ad-reader__redeem-message {
	min-height: 1.4em;
	margin: 10px 0 0;
	font-size: 0.9rem;
	color: var(--ad-reader-accent);
}

.ad-reader__guest {
	margin: 0 0 16px;
}

.ad-reader__guest-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.ad-reader__paywall-pdf {
	margin-top: 20px;
	padding-top: 16px;
	border-top: 1px dashed var(--ad-reader-border);
}

.ad-reader__paywall-pdf p {
	margin: 0 0 10px;
	font-size: 0.9rem;
	color: var(--ad-reader-muted);
}

.ad-reader__note,
.ad-library__disclaimer {
	margin: 16px 0 0;
	font-size: 0.8rem;
	color: var(--ad-reader-muted);
}

.ad-reader__library-link {
	margin: 10px 0 0;
	font-size: 0.9rem;
}

.ad-reader__library-link a {
	color: var(--ad-reader-accent);
}

/* ---------------------------------------------------------------- Ficha */

.ad-book {
	max-width: 1080px;
	margin: 0 auto;
	padding: clamp(20px, 4vw, 48px) clamp(16px, 4vw, 32px);
	color: var(--ad-reader-text, #1d2327);
	font-family: var(--ad-reader-sans);
}

.ad-book__hero {
	display: grid;
	grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
	gap: clamp(20px, 4vw, 48px);
	align-items: start;
}

.ad-book__cover {
	margin: 0;
}

.ad-book__cover img {
	width: 100%;
	height: auto;
	border-radius: 10px;
	box-shadow: 0 12px 30px rgba(20, 24, 31, 0.18);
}

.ad-book__title {
	margin: 0 0 8px;
	font-family: var(--ad-reader-serif);
	font-size: clamp(1.8rem, 4vw, 2.6rem);
	line-height: 1.12;
	letter-spacing: -0.015em;
}

.ad-book__subtitle {
	margin: 0 0 6px;
	font-size: 1.1rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-book__author {
	margin: 0 0 16px;
	font-size: 1rem;
	font-weight: 600;
}

.ad-book__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 16px;
	margin: 0 0 18px;
	padding: 0;
	list-style: none;
	font-size: 0.85rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-book__meta li {
	padding: 4px 10px;
	background: var(--ad-reader-soft, #f1ede4);
	border-radius: 999px;
}

.ad-book__description {
	margin: 0 0 22px;
	font-size: 1rem;
	line-height: 1.7;
}

.ad-book__license-badge {
	display: inline-block;
	margin: 0 0 16px;
	padding: 8px 12px;
	border-radius: 8px;
	background: #e7f3e9;
	color: #1c5c2e;
	font-size: 0.85rem;
	font-weight: 600;
}

.ad-book__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-bottom: 16px;
}

.ad-reader-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	min-height: 48px;
	padding: 12px 22px;
	border: 1px solid var(--ad-reader-border, #e2ddd3);
	border-radius: 10px;
	background: #fff;
	color: var(--ad-reader-text, #1d2327);
	font-family: var(--ad-reader-sans);
	font-size: 0.98rem;
	font-weight: 700;
	text-decoration: none;
	cursor: pointer;
}

.ad-reader-button--primary {
	background: var(--ad-reader-accent, #8a3b12);
	border-color: var(--ad-reader-accent, #8a3b12);
	color: #fff;
}

.ad-reader-button--secondary {
	border-color: var(--ad-reader-accent, #8a3b12);
	color: var(--ad-reader-accent, #8a3b12);
}

.ad-reader-button--disabled,
.ad-reader-button:disabled {
	opacity: 0.55;
	cursor: not-allowed;
}

.ad-book__buy {
	flex-direction: column;
	align-items: flex-start;
	gap: 2px;
}

.ad-book__buy-price {
	font-weight: 500;
	font-size: 0.9rem;
}

.ad-book__sample-info,
.ad-book__login-hint {
	margin: 0 0 10px;
	font-size: 0.88rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-book__login-hint a,
.ad-book__library-link a {
	color: var(--ad-reader-accent, #8a3b12);
}

.ad-book__note {
	margin: 14px 0 0;
	padding: 10px 14px;
	border-left: 3px solid var(--ad-reader-accent, #8a3b12);
	background: var(--ad-reader-soft, #f1ede4);
	font-size: 0.82rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-book__synopsis {
	margin-top: clamp(28px, 5vw, 56px);
	padding-top: 24px;
	border-top: 1px solid var(--ad-reader-border, #e2ddd3);
}

.ad-book__synopsis h2 {
	margin: 0 0 12px;
	font-family: var(--ad-reader-serif);
	font-size: 1.3rem;
}

.ad-book__synopsis p {
	margin: 0;
	max-width: 70ch;
	line-height: 1.75;
}

/* ------------------------------------------------------------ Biblioteca */

.ad-library {
	max-width: 1000px;
	margin: 0 auto;
	padding: clamp(20px, 4vw, 48px) clamp(16px, 4vw, 32px);
	color: var(--ad-reader-text, #1d2327);
	font-family: var(--ad-reader-sans);
}

.ad-library__title {
	margin: 0 0 24px;
	font-family: var(--ad-reader-serif);
	font-size: clamp(1.7rem, 4vw, 2.3rem);
}

.ad-library__section {
	margin-bottom: 40px;
}

.ad-library__section h2 {
	margin: 0 0 12px;
	font-family: var(--ad-reader-serif);
	font-size: 1.3rem;
}

.ad-library__list {
	display: grid;
	gap: 16px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.ad-library__item {
	display: flex;
	gap: 16px;
	padding: 16px;
	background: #fff;
	border: 1px solid var(--ad-reader-border, #e2ddd3);
	border-radius: 12px;
}

.ad-library__cover {
	width: 84px;
	height: auto;
	flex: 0 0 auto;
	border-radius: 6px;
	align-self: flex-start;
}

.ad-library__info {
	min-width: 0;
}

.ad-library__book-title {
	margin: 0 0 4px;
	font-size: 1.05rem;
	font-family: var(--ad-reader-serif);
}

.ad-library__author {
	margin: 0 0 8px;
	font-size: 0.88rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-library__status,
.ad-library__progress {
	margin: 0 0 8px;
	font-size: 0.85rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-library__badge {
	display: inline-block;
	padding: 3px 8px;
	border-radius: 999px;
	font-size: 0.75rem;
	font-weight: 700;
	background: #eceae4;
	color: #3c4450;
}

.ad-library__badge--active {
	background: #e7f3e9;
	color: #1c5c2e;
}

.ad-library__badge--expired {
	background: #fbeee0;
	color: #8a4b16;
}

.ad-library__badge--revoked {
	background: #fbe6e3;
	color: #a02c1c;
}

.ad-library__empty {
	padding: 22px;
	background: var(--ad-reader-soft, #f1ede4);
	border-radius: 12px;
}

.ad-library__empty p {
	margin: 0 0 12px;
}

.ad-library__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.ad-library__unavailable {
	font-size: 0.85rem;
	color: var(--ad-reader-muted, #5b6470);
}

.ad-library__cross-link {
	margin: 10px 0 0;
	font-size: 0.85rem;
}

.ad-library__section--pdf {
	margin-top: 48px;
	padding-top: 24px;
	border-top: 1px solid var(--ad-reader-border, #e2ddd3);
}

/* ---------------------------------------------------------------- Varios */

.screen-reader-text {
	position: absolute !important;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

@media (max-width: 767px) {
	.ad-reader-app {
		padding: 0;
	}

	.ad-reader {
		border-radius: 0;
		border-left: 0;
		border-right: 0;
	}

	.ad-reader__bar {
		padding: 8px 10px 12px;
		gap: 8px;
	}

	.ad-reader__book-title {
		font-size: 0.9rem;
	}

	.ad-reader__icon-label {
		display: none;
	}

	.ad-reader__reading {
		padding: 18px 16px 40px;
	}

	.ad-reader__nav {
		position: sticky;
		bottom: 0;
		background: var(--ad-reader-surface);
		padding: 10px 0;
		margin: 24px -16px -40px;
		padding-left: 16px;
		padding-right: 16px;
	}

	.ad-reader__position {
		font-size: 0.78rem;
	}

	.ad-reader__settings {
		right: 8px;
		left: 8px;
		width: auto;
		top: 58px;
	}

	.ad-book__hero {
		grid-template-columns: 1fr;
	}

	.ad-book__cover {
		max-width: 200px;
	}

	.ad-book__actions {
		flex-direction: column;
		align-items: stretch;
	}

	.ad-library__item {
		flex-direction: column;
	}

	.ad-library__cover {
		width: 110px;
	}
}

@media (min-width: 1024px) {
	.ad-reader__body {
		display: grid;
		grid-template-columns: 260px minmax(0, 1fr);
	}

	.ad-reader__toc {
		position: sticky;
		top: 57px;
		bottom: auto;
		width: auto;
		max-height: calc(100vh - 80px);
		border-right: 1px solid var(--ad-reader-border);
		box-shadow: none;
	}

	.ad-reader__toc[hidden] {
		display: block;
	}

	.ad-reader__toc-header {
		display: none;
	}

	.ad-reader [data-ad-toc-toggle] {
		display: none;
	}

	.ad-reader__reading {
		width: 100%;
	}
}

@media (prefers-reduced-motion: reduce) {
	.ad-reader *,
	.ad-reader-app * {
		scroll-behavior: auto !important;
		transition: none !important;
	}
}