/**
 * Athenaeum Reader – single-article reading experience
 * Matches pages/reader.html design: sepia/light/dark themes, typography, progress bar.
 *
 * @package IssueM
 */
:root {
	--reader-bg: #f4f1ea;
	--reader-text: #1a1a1a;
	--reader-muted: #595959;
	--reader-accent: #967542;
	--reader-border: rgba(0, 0, 0, 0.1);
	--reader-surface: #fff;
	/* Typography – match reader.html */
	--reader-font-serif: 'Georgia', 'Times New Roman', serif;
	--reader-font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
	--reader-font-size: 1.25rem;
	--reader-line-height: 1.8;
	/* Structural */
	--reader-width: 740px;
	--reader-outset: 900px;
	--reader-nav-height: 60px;
	--reader-ease: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
	--reader-bg: #121212;
	--reader-text: #e0e0e0;
	--reader-muted: #a0a0a0;
	--reader-accent: #c5a87a;
	--reader-border: rgba(255, 255, 255, 0.1);
	--reader-surface: #1e1e1e;
}

[data-theme="light"] {
	--reader-bg: #ffffff;
	--reader-text: #111111;
	--reader-muted: #666666;
	--reader-accent: #967542;
	--reader-border: rgba(0, 0, 0, 0.08);
	--reader-surface: #f9f9f9;
}

body.issuem-athenaeum-reader.font-small { --reader-font-size: 1.1rem; }
body.issuem-athenaeum-reader.font-medium { --reader-font-size: 1.25rem; }
body.issuem-athenaeum-reader.font-large { --reader-font-size: 1.45rem; }

/* Match reader.html: consistent box model for reader layout */
.issuem-athenaeum-reader,
.issuem-athenaeum-reader *,
.issuem-athenaeum-reader *::before,
.issuem-athenaeum-reader *::after {
	box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
	.issuem-athenaeum-reader * { transition: none !important; animation: none !important; }
}

/* Match reader.html: body typography and prevent horizontal scroll */
.issuem-athenaeum-reader {
	background-color: var(--reader-bg);
	color: var(--reader-text);
	font-family: var(--reader-font-sans);
	line-height: var(--reader-line-height);
	transition: background-color var(--reader-ease), color var(--reader-ease);
	overflow-x: hidden;
}

.issuem-athenaeum-reader .sr-only {
	position: absolute; width: 1px; height: 1px; padding: 0;
	margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0;
}

.issuem-athenaeum-reader :focus-visible {
	outline: 3px solid var(--reader-accent);
	outline-offset: 2px;
}

.reader-nav {
	position: fixed; top: 0; left: 0; right: 0; height: var(--reader-nav-height);
	background: var(--reader-bg); border-bottom: 1px solid var(--reader-border);
	z-index: 1000; display: flex; align-items: center;
	transition: background-color var(--reader-ease);
}

/* When WordPress admin bar is present, push reader nav and content below it */
body.admin-bar .reader-nav { top: 32px; }
body.admin-bar .reader-canvas { margin-top: 112px; }
body.admin-bar .reader-sidebar { top: 32px; }
body.admin-bar .settings-panel { top: 102px; }
@media screen and (max-width: 782px) {
	body.admin-bar .reader-nav { top: 46px; }
	body.admin-bar .reader-canvas { margin-top: 126px; }
	body.admin-bar .reader-sidebar { top: 46px; }
	body.admin-bar .settings-panel { top: 116px; }
}

.reader-nav .nav-container {
	width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px;
	display: flex; justify-content: space-between; align-items: center;
}

.reader-nav .nav-left,
.reader-nav .nav-right { display: flex; align-items: center; gap: 8px; }

.reader-nav .btn-icon {
	background: none; border: none; color: var(--reader-text);
	cursor: pointer; padding: 10px; border-radius: 4px;
	display: flex; align-items: center; gap: 8px;
	font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
	letter-spacing: 1px; transition: background 0.2s ease;
}

.reader-nav .btn-icon:hover { background: var(--reader-border); }
.reader-nav .btn-icon[aria-expanded="true"] { background: var(--reader-border); color: var(--reader-accent); }

.reader-nav .pub-context {
	font-family: var(--reader-font-serif); font-style: italic; font-size: 0.85rem;
	color: var(--reader-muted); display: none;
	overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
	max-width: 250px;
}

@media (min-width: 768px) {
	.reader-nav .pub-context { display: block; max-width: none; }
}

.reader-nav .progress-container {
	position: absolute; bottom: -1px; left: 0; width: 100%; height: 3px;
	background: transparent;
}

.reader-nav .progress-bar {
	height: 100%; background: var(--reader-accent); width: 0%;
	transition: width 0.1s;
}

.reader-sidebar {
	position: fixed; top: 0; left: -100%; bottom: 0; width: 320px;
	max-width: 85vw; background: var(--reader-surface); z-index: 2000;
	border-right: 1px solid var(--reader-border);
	transition: left var(--reader-ease);
	padding: 40px 20px; overflow-y: auto;
	box-shadow: 20px 0 50px rgba(0,0,0,0.1);
}

.reader-sidebar.active { left: 0; }

.reader-sidebar .sidebar-header {
	margin-bottom: 30px; border-bottom: 1px solid var(--reader-border);
	padding-bottom: 20px;
}

.reader-sidebar .sidebar-header h2 { font-family: var(--reader-font-serif); font-size: 1.25rem; }

.reader-sidebar .toc-list { list-style: none; }

.reader-sidebar .toc-link {
	display: block; padding: 12px 15px; text-decoration: none; color: var(--reader-muted);
	border-radius: 4px; font-size: 0.95rem; transition: all 0.2s;
}

/* Hover/focus: subtle background so only one item looks “active” (aria-current) */
.reader-sidebar .toc-link:hover,
.reader-sidebar .toc-link:focus {
	background: rgba(0, 0, 0, 0.05);
	color: var(--reader-text);
}
[data-theme="dark"] .reader-sidebar .toc-link:hover,
[data-theme="dark"] .reader-sidebar .toc-link:focus {
	background: rgba(255, 255, 255, 0.08);
}

/* Current article only – distinct from hover */
.reader-sidebar .toc-link[aria-current="location"] {
	color: var(--reader-accent);
	font-weight: 700;
	background: var(--reader-bg);
}
.reader-sidebar .toc-link[aria-current="location"]:hover,
.reader-sidebar .toc-link[aria-current="location"]:focus {
	background: var(--reader-bg);
	color: var(--reader-accent);
}

/* Back link block – match reader.html structure */
.reader-sidebar .reader-sidebar-back {
	margin-top: 40px;
	padding-top: 20px;
	border-top: 1px solid var(--reader-border);
}

.sidebar-overlay {
	position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 1500;
	opacity: 0; visibility: hidden; transition: var(--reader-ease);
	backdrop-filter: blur(2px);
}

.sidebar-overlay.active { opacity: 1; visibility: visible; }

.settings-panel {
	position: fixed; top: 70px; right: 20px; width: 240px;
	background: var(--reader-surface); border: 1px solid var(--reader-border);
	border-radius: 8px; padding: 20px; z-index: 900;
	box-shadow: 0 10px 30px rgba(0,0,0,0.1);
	display: none;
}

.settings-panel.active { display: block; }

.settings-panel .settings-group { margin-bottom: 20px; }

.settings-panel .settings-label {
	font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1px;
	color: var(--reader-muted); margin-bottom: 10px; display: block; font-weight: 700;
}

.settings-panel .toggle-group { display: flex; gap: 8px; }

.settings-panel .theme-btn {
	flex: 1; height: 38px; border-radius: 4px; border: 2px solid transparent;
	cursor: pointer; display: flex; align-items: center; justify-content: center;
}

.settings-panel .theme-btn.active { border-color: var(--reader-accent); }
.settings-panel .theme-btn.sepia { background: #f4f1ea; }
.settings-panel .theme-btn.light { background: #fff; border-color: #ddd; }
.settings-panel .theme-btn.light.active { border-color: var(--reader-accent); }
.settings-panel .theme-btn.dark { background: #121212; }

.settings-panel .size-btn {
	flex: 1; background: var(--reader-bg); border: 1px solid var(--reader-border);
	color: var(--reader-text); font-weight: 700; cursor: pointer;
	height: 38px; border-radius: 4px;
}

.settings-panel .size-btn.active { background: var(--reader-accent); color: #fff; }

.reader-canvas {
	width: 100%; max-width: var(--reader-width);
	margin: 80px auto 60px; padding: 0 20px;
}

.reader-header {
	margin-bottom: 40px; text-align: center; padding-top: 20px;
}

.reader-header .chapter-label {
	font-size: 0.8rem; text-transform: uppercase; letter-spacing: 3px;
	color: var(--reader-accent); font-weight: 700; display: block; margin-bottom: 12px;
}

.reader-header .chapter-title {
	font-family: var(--reader-font-serif);
	font-size: clamp(1.75rem, 8vw, 3.5rem); line-height: 1.15; margin-bottom: 20px;
}

.reader-header .chapter-deck {
	font-size: clamp(1.1rem, 4vw, 1.4rem); color: var(--reader-muted);
	font-style: italic; max-width: 650px; margin: 0 auto; line-height: 1.45;
}

.reader-canvas figure { margin: 60px 0; clear: both; }
.reader-canvas figure img { width: 100%; height: auto; display: block; border-radius: 2px; }

/* Reader featured image: contained within content width, not full bleed */
.reader-canvas figure.reader-featured-image {
	width: 100%; max-width: 100%; margin-left: 0; margin-right: 0; transform: none;
}
.reader-canvas figure.reader-featured-image img {
	max-width: 100%; height: auto; object-fit: contain;
}

.reader-canvas .img-bleed {
	width: 100vw; margin-left: 50%; transform: translateX(-50%); max-width: none;
}

.reader-canvas .img-outset {
	width: min(var(--reader-outset), 100vw - 40px);
	margin-left: 50%; transform: translateX(-50%);
}

.reader-canvas .img-boxed {
	width: 100%; border: 1px solid var(--reader-border);
	padding: 12px; background: var(--reader-surface); border-radius: 4px;
}

.reader-canvas figcaption {
	font-family: var(--reader-font-sans); font-size: 0.8rem; color: var(--reader-muted);
	margin-top: 15px; line-height: 1.5; text-align: center; padding: 0 20px;
}

/* Content body typography – match reader.html .content-body */
.reader-canvas .content-body {
	font-family: var(--reader-font-serif);
	font-size: var(--reader-font-size);
	line-height: var(--reader-line-height);
	max-width: 100%;
	overflow-wrap: break-word;
}

.reader-canvas .content-body p { margin-bottom: 1.8rem; }

.reader-canvas .content-body p:last-child { margin-bottom: 0; }

/* Default blockquotes (not .pull-quote) */
.reader-canvas .content-body blockquote {
	margin: 2rem 0; padding: 1.25rem 1.5rem 1.25rem 1.75rem;
	border-left: 4px solid var(--reader-accent);
	background: var(--reader-surface);
	color: var(--reader-text);
	font-style: italic;
}

.reader-canvas .content-body blockquote p { margin-bottom: 0.75rem; }
.reader-canvas .content-body blockquote p:last-child { margin-bottom: 0; }

/* In-content links – reader-appropriate typography */
.reader-canvas .content-body a {
	color: var(--reader-accent);
	text-decoration: underline;
	text-underline-offset: 0.15em;
}
.reader-canvas .content-body a:hover {
	color: var(--reader-text);
}

/* Lists */
.reader-canvas .content-body ul,
.reader-canvas .content-body ol {
	margin: 1.5rem 0; padding-left: 1.75rem;
}

.reader-canvas .content-body li {
	margin-bottom: 0.5rem;
}

.reader-canvas .content-body ul ul,
.reader-canvas .content-body ol ol,
.reader-canvas .content-body ul ol,
.reader-canvas .content-body ol ul {
	margin-top: 0.5rem; margin-bottom: 0.5rem;
}

/* Headings inside body */
.reader-canvas .content-body h1,
.reader-canvas .content-body h2,
.reader-canvas .content-body h3,
.reader-canvas .content-body h4,
.reader-canvas .content-body h5,
.reader-canvas .content-body h6 {
	font-family: var(--reader-font-serif);
	font-weight: 700;
	margin-top: 2.25rem; margin-bottom: 1rem;
	line-height: 1.3;
}

.reader-canvas .content-body h1 { font-size: 1.75em; }
.reader-canvas .content-body h2 { font-size: 1.5em; }
.reader-canvas .content-body h3 { font-size: 1.3em; }
.reader-canvas .content-body h4 { font-size: 1.15em; }
.reader-canvas .content-body h5 { font-size: 1.05em; }
.reader-canvas .content-body h6 { font-size: 0.95em; color: var(--reader-muted); }

.reader-canvas .content-body h1:first-child,
.reader-canvas .content-body h2:first-child,
.reader-canvas .content-body h3:first-child,
.reader-canvas .content-body h4:first-child,
.reader-canvas .content-body h5:first-child,
.reader-canvas .content-body h6:first-child { margin-top: 0; }

/* Horizontal rule */
.reader-canvas .content-body hr {
	border: none;
	border-top: 1px solid var(--reader-border);
	margin: 2.5rem 0;
}

/* Inline / aligned images inside content */
.reader-canvas .content-body img {
	max-width: 100%;
	height: auto;
	vertical-align: middle;
}

.reader-canvas .content-body img.alignleft {
	float: left;
	margin: 0.5rem 1.25rem 1rem 0;
}

.reader-canvas .content-body img.alignright {
	float: right;
	margin: 0.5rem 0 1rem 1.25rem;
}

.reader-canvas .content-body img.aligncenter {
	display: block;
	margin-left: auto;
	margin-right: auto;
	margin-bottom: 1.5rem;
}

/* Clear floats after aligned images */
.reader-canvas .content-body::after {
	content: "";
	display: table;
	clear: both;
}

.reader-canvas .drop-cap {
	float: left; font-size: clamp(3.5rem, 10vw, 4.8rem); line-height: 0.8;
	padding-top: 4px; padding-right: 12px; color: var(--reader-accent);
	font-family: var(--reader-font-serif);
}

.reader-canvas blockquote.pull-quote {
	margin: 60px 0; padding: 40px 20px;
	border-top: 1px solid var(--reader-accent);
	border-bottom: 1px solid var(--reader-accent);
	text-align: center; font-style: italic;
	font-size: clamp(1.4rem, 5vw, 1.8rem);
	color: var(--reader-text); line-height: 1.4;
}

@media (max-width: 900px) {
	.reader-canvas .img-outset,
	.reader-canvas .img-bleed {
		width: calc(100% + 40px); transform: none; margin-left: -20px;
	}
	.reader-canvas blockquote.pull-quote { margin: 40px 0; padding: 30px 15px; }
}

.reader-footer {
	border-top: 1px solid var(--reader-border); padding: 40px 0;
	display: flex; flex-direction: column; gap: 16px;
}

.reader-footer .nav-card {
	padding: 24px; border-radius: 8px; background: var(--reader-surface);
	text-decoration: none; color: inherit;
	border: 1px solid var(--reader-border); transition: var(--reader-ease);
}

.reader-footer .nav-card:hover {
	border-color: var(--reader-accent); transform: translateY(-2px);
}

.reader-footer .nav-card small {
	display: block; font-size: 0.65rem; text-transform: uppercase;
	color: var(--reader-accent); font-weight: 700; margin-bottom: 6px;
}

.reader-footer .nav-card span {
	font-family: var(--reader-font-serif); font-size: 1.1rem; font-weight: 700;
}

@media (min-width: 600px) {
	.reader-footer {
		display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
		padding: 60px 0;
	}
	.reader-footer .nav-card.next { text-align: right; }
}

@media print {
	.reader-nav, .reader-sidebar, .sidebar-overlay, .settings-panel, .reader-footer, .pagination-area { display: none !important; }
	body.issuem-athenaeum-reader { background: white !important; color: black !important; padding: 0 !important; }
	.reader-canvas { max-width: 100%; margin: 0; padding: 0; }
	.reader-canvas .content-body { font-size: 12pt; line-height: 1.6; }
	.reader-canvas .chapter-title { font-size: 28pt; margin-top: 0; }
	.reader-canvas .img-bleed,
	.reader-canvas .img-outset { width: 100%; transform: none; margin-left: 0; }
	.reader-canvas figure { break-inside: avoid; }
	.reader-canvas .content-body a { color: #000; text-decoration: underline; }
}