/*
 * Altscroll Trust Layer — front-end styles
 * Milky-white boxed reading layout. Mobile-first, no external fonts,
 * no icon fonts (all icons are inline SVG), CSS custom properties for
 * easy theming/overrides.
 */

:root {
	--atl-bg: #fffefb;
	--atl-box-bg: #ffffff;
	--atl-border: #e7e3da;
	--atl-radius: 12px;
	--atl-text: #242422;
	--atl-muted: #6b6b64;
	--atl-accent: #1a7f4b;
	--atl-accent-bg: #eaf6ef;
	--atl-link: #1a56db;
	--atl-max: 700px;
	--atl-gap: 18px;
	--atl-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.altscroll-box {
	background: var(--atl-box-bg);
	border: 1px solid var(--atl-border);
	border-radius: var(--atl-radius);
	padding: 20px 22px;
	margin: 0 0 var(--atl-gap);
	box-sizing: border-box;
	color: var(--atl-text);
	font-family: var(--atl-font);
}

.altscroll-box h2 {
	font-size: 0.85em;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--atl-muted);
	margin: 0 0 12px;
}

.altscroll-box a {
	color: var(--atl-link);
}

/* ---------- Focus mode page shell ---------- */

body.altscroll-focus-mode {
	background: var(--atl-bg);
	margin: 0;
}

.altscroll-focus-topbar {
	max-width: var(--atl-max);
	margin: 0 auto;
	padding: 18px 16px 0;
	font-family: var(--atl-font);
}

.altscroll-focus-topbar .altscroll-focus-home {
	font-weight: 700;
	text-decoration: none;
	color: var(--atl-text);
	font-size: 1.05em;
}

.altscroll-focus-wrap {
	max-width: var(--atl-max);
	margin: 0 auto;
	padding: 20px 16px 64px;
}

/* ---------- Breadcrumbs ---------- */

.altscroll-breadcrumbs {
	font-size: 0.85em;
	color: var(--atl-muted);
	padding: 12px 18px;
}

.altscroll-breadcrumbs a {
	text-decoration: none;
}

.altscroll-breadcrumbs a:hover {
	text-decoration: underline;
}

.altscroll-crumb-sep {
	margin: 0 8px;
	color: var(--atl-border);
}

/* ---------- Header ---------- */

.altscroll-title {
	font-size: 1.6em;
	line-height: 1.25;
	margin: 0 0 16px;
}

.altscroll-header-meta {
	display: flex;
	align-items: center;
	gap: 12px;
}

.altscroll-avatar {
	border-radius: 50%;
	flex-shrink: 0;
	display: block;
}

.altscroll-byline {
	margin: 0 0 4px;
	font-weight: 600;
}

.altscroll-byline a {
	text-decoration: none;
}

.altscroll-dates {
	margin: 0;
	font-size: 0.85em;
	color: var(--atl-muted);
}

.altscroll-dates a {
	text-decoration: none;
	color: var(--atl-muted);
}

.altscroll-dot {
	margin: 0 6px;
}

.altscroll-badge {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	background: var(--atl-accent-bg);
	color: var(--atl-accent);
	border-radius: 999px;
	padding: 2px 10px 2px 6px;
	font-size: 0.75em;
	font-weight: 600;
	vertical-align: middle;
	margin-left: 4px;
}

.altscroll-tick {
	flex-shrink: 0;
}

/* ---------- Featured image ---------- */

.altscroll-featured-image {
	padding: 0;
	overflow: hidden;
	line-height: 0;
}

.altscroll-featured-image img {
	width: 100%;
	height: auto;
	display: block;
}

/* Optional: attempt to hide the theme's own featured image when this
   plugin's featured-image box is present, to avoid duplicates. */
.altscroll-hide-theme-thumb ~ .wp-post-image,
body:has(.altscroll-hide-theme-thumb) .entry-thumbnail,
body:has(.altscroll-hide-theme-thumb) .post-thumbnail:not(.altscroll-featured-image *) {
	display: none;
}

/* ---------- Share icons ---------- */

.altscroll-share {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
	padding: 14px 18px;
}

.altscroll-share-label {
	font-size: 0.8em;
	color: var(--atl-muted);
	text-transform: uppercase;
	letter-spacing: 0.04em;
	margin-right: 4px;
}

.altscroll-share-btn {
	width: 34px;
	height: 34px;
	border-radius: 50%;
	border: 1px solid var(--atl-border);
	background: var(--atl-bg);
	color: var(--atl-text);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	text-decoration: none;
	cursor: pointer;
	transition: background 0.15s ease, transform 0.1s ease;
}

.altscroll-share-btn:hover {
	background: var(--atl-accent-bg);
	transform: translateY(-1px);
}

/* ---------- Quick summary ---------- */

.altscroll-quick-summary p {
	margin: 0;
	line-height: 1.6;
}

/* ---------- Subscribe ---------- */

.altscroll-subscribe-sub {
	margin: 0 0 12px;
	color: var(--atl-muted);
	font-size: 0.9em;
}

.altscroll-subscribe-form {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}

.altscroll-subscribe-form input[type="email"] {
	flex: 1 1 220px;
	padding: 10px 12px;
	border: 1px solid var(--atl-border);
	border-radius: 8px;
	font-size: 1em;
	font-family: var(--atl-font);
}

.altscroll-subscribe-form button {
	padding: 10px 18px;
	border: none;
	border-radius: 8px;
	background: var(--atl-accent);
	color: #fff;
	font-weight: 600;
	cursor: pointer;
	font-family: var(--atl-font);
}

.altscroll-subscribe-form button:hover {
	opacity: 0.92;
}

.altscroll-subscribe-form button:disabled {
	opacity: 0.6;
	cursor: default;
}

.altscroll-subscribe-message {
	width: 100%;
	margin: 6px 0 0;
	font-size: 0.85em;
	color: var(--atl-muted);
}

.altscroll-subscribe-message[data-state="error"] {
	color: #b3261e;
}

.altscroll-subscribe-message[data-state="success"] {
	color: var(--atl-accent);
}

/* Honeypot — hidden from real visitors, still reachable/labelled for
   assistive tech screen readers so it doesn't look like a broken trap. */
.altscroll-website-field {
	position: absolute;
	left: -9999px;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

/* ---------- Table of contents ---------- */

.altscroll-toc summary {
	cursor: pointer;
	font-weight: 600;
	list-style: none;
}

.altscroll-toc summary::-webkit-details-marker {
	display: none;
}

.altscroll-toc summary::before {
	content: "▸";
	display: inline-block;
	margin-right: 8px;
	transition: transform 0.15s ease;
	color: var(--atl-muted);
}

.altscroll-toc[open] summary::before {
	transform: rotate(90deg);
}

.altscroll-toc nav {
	margin-top: 14px;
}

.altscroll-toc ol {
	margin: 0;
	padding-left: 20px;
}

.altscroll-toc li {
	margin-bottom: 6px;
}

.altscroll-toc a {
	text-decoration: none;
}

.altscroll-toc a:hover {
	text-decoration: underline;
}

.altscroll-toc-level-3 {
	margin-left: 16px;
	list-style-type: circle;
}

.altscroll-toc-level-4 {
	margin-left: 32px;
	list-style-type: square;
}

/* ---------- Main content ---------- */

.altscroll-main-content {
	line-height: 1.75;
	font-size: 1.05em;
}

.altscroll-main-content img,
.altscroll-main-content iframe,
.altscroll-main-content video {
	max-width: 100%;
	height: auto;
	border-radius: 8px;
}

.altscroll-main-content h2,
.altscroll-main-content h3,
.altscroll-main-content h4 {
	scroll-margin-top: 20px;
}

/* ---------- Author box ---------- */

.altscroll-author-box {
	text-align: center;
}

.altscroll-avatar-lg {
	margin: 0 auto 12px;
}

.altscroll-author-name {
	font-weight: 700;
	margin: 0 0 8px;
}

.altscroll-author-name a {
	text-decoration: none;
}

.altscroll-expertise,
.altscroll-author-bio,
.altscroll-credentials,
.altscroll-article-credential {
	max-width: 480px;
	margin: 0 auto 8px;
	color: var(--atl-muted);
	font-size: 0.92em;
	line-height: 1.6;
}

/* ---------- Sources / correction log ---------- */

.altscroll-sources,
.altscroll-correction-log {
	margin: 0 0 14px;
	padding-left: 18px;
}

.altscroll-sources:last-child,
.altscroll-correction-log:last-child {
	margin-bottom: 0;
}

/* ---------- Related posts ---------- */

.altscroll-related-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	gap: 14px;
}

.altscroll-related-card {
	display: block;
	text-decoration: none;
	color: var(--atl-text);
	border: 1px solid var(--atl-border);
	border-radius: 10px;
	overflow: hidden;
}

.altscroll-related-card img {
	width: 100%;
	height: auto;
	display: block;
}

.altscroll-related-title {
	display: block;
	padding: 10px 12px;
	font-size: 0.92em;
	font-weight: 600;
	line-height: 1.4;
}

/* ---------- Comments ---------- */

.altscroll-comments {
	background: var(--atl-box-bg);
}

/* ---------- Editorial standards / author archive card ---------- */

.altscroll-editorial-standards {
	max-width: var(--atl-max);
	line-height: 1.6;
}

.altscroll-author-card .altscroll-avatar {
	margin-bottom: 10px;
}