:root {
	--acs-paper: #f7f5ef;
	--acs-card: #ffffff;
	--acs-ink: #1f292b;
	--acs-muted: #657174;
	--acs-accent: #356b4d;
	--acs-accent-dark: #173f35;
	--acs-line: #d9e2dc;
	--acs-soft: #eff3ea;
	--acs-max: 1120px;
	--acs-reading: 760px;
}

html {
	background: var(--acs-paper);
}

body.acs-site {
	margin: 0;
	background: var(--acs-paper);
	color: var(--acs-ink);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	font-size: 18px;
	line-height: 1.65;
}

body.acs-site *,
body.acs-site *::before,
body.acs-site *::after {
	box-sizing: border-box;
}

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

body.acs-site a:hover,
body.acs-site a:focus {
	color: var(--acs-accent);
}

.acs-page {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.acs-header {
	background: var(--acs-card);
	border-bottom: 1px solid var(--acs-line);
}

.acs-header-inner {
	width: min(calc(100% - 40px), var(--acs-max));
	margin: 0 auto;
	padding: 30px 0 26px;
	display: flex;
	gap: 32px;
	align-items: flex-start;
	justify-content: space-between;
}

.acs-brand-block {
	max-width: 760px;
}

.acs-brand {
	display: inline-flex;
	align-items: center;
	gap: 0.72rem;
	color: var(--acs-ink) !important;
	font-size: clamp(1.65rem, 4vw, 2.35rem);
	font-weight: 750;
	line-height: 1.08;
	letter-spacing: -0.035em;
	text-decoration: none;
}

.acs-brand-mark {
	display: block;
	width: clamp(2.35rem, 5vw, 3.25rem);
	height: clamp(2.35rem, 5vw, 3.25rem);
	flex: 0 0 auto;
}

.acs-brand-name {
	display: inline-block;
}

.acs-description {
	max-width: 760px;
	margin: 14px 0 0;
	color: var(--acs-muted);
	font-size: 1rem;
	line-height: 1.55;
}

.acs-nav {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 18px;
	padding-top: 7px;
	font-size: 0.9rem;
	white-space: nowrap;
}

.acs-nav a {
	text-decoration: none;
	font-weight: 650;
}

.acs-main {
	width: min(calc(100% - 40px), var(--acs-max));
	margin: 0 auto;
	flex: 1;
	padding: 54px 0 72px;
}

.acs-main-archive {
	padding-top: 48px;
}

.acs-card-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 32px;
}

.acs-card {
	width: 100%;
	max-width: none;
	min-width: 0;
	margin: 0;
	padding: 0;
	float: none;
	clear: none;
	overflow: hidden;
	background: var(--acs-card);
	border: 1px solid var(--acs-line);
	border-radius: 14px;
	box-shadow: 0 8px 28px rgba(31, 41, 43, 0.06);
}

.acs-card-image-link {
	display: block;
	background: var(--acs-soft);
	text-decoration: none;
}

.acs-card .acs-featured {
	margin: 0;
	aspect-ratio: 16 / 9;
	overflow: hidden;
}

.acs-card .acs-featured-image {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.acs-card-body {
	padding: 25px 27px 28px;
}

.acs-card-date,
.acs-article-date {
	margin: 0 0 8px;
	color: var(--acs-muted);
	font-size: 0.82rem;
	font-weight: 650;
	letter-spacing: 0.025em;
	text-transform: uppercase;
}

.acs-card-title {
	margin: 0;
	font-size: clamp(1.45rem, 3vw, 1.85rem);
	line-height: 1.16;
	letter-spacing: -0.025em;
}

.acs-card-title a {
	color: var(--acs-ink) !important;
	text-decoration: none;
}

.acs-card-excerpt {
	margin-top: 15px;
	color: #3e4a4d;
	font-size: 0.98rem;
}

.acs-card-excerpt p {
	margin: 0;
}

.acs-read-link {
	display: inline-block;
	margin-top: 18px;
	font-size: 0.92rem;
	font-weight: 700;
	text-decoration: none;
}

.acs-pagination {
	margin-top: 48px;
}

.acs-pagination ul {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	padding: 0;
	margin: 0;
	list-style: none;
}

.acs-pagination a,
.acs-pagination .current {
	display: inline-block;
	min-width: 42px;
	padding: 8px 12px;
	border: 1px solid var(--acs-line);
	border-radius: 8px;
	background: var(--acs-card);
	text-align: center;
	text-decoration: none;
}

.acs-pagination .current {
	background: var(--acs-accent-dark);
	border-color: var(--acs-accent-dark);
	color: white;
}

.acs-article {
	max-width: var(--acs-reading);
	margin: 0 auto;
}

.acs-article-header {
	margin-bottom: 26px;
}

.acs-article-title {
	margin: 0;
	font-size: clamp(2.2rem, 7vw, 3.55rem);
	line-height: 1.02;
	letter-spacing: -0.045em;
	text-wrap: balance;
}

.acs-disclosure {
	margin-top: 18px;
	color: var(--acs-muted);
	font-size: 0.9rem;
}

.acs-disclosure p {
	margin: 0;
}

.acs-featured {
	margin: 28px 0 32px;
}

.acs-featured-image {
	display: block;
	width: 100%;
	height: auto;
	border-radius: 12px;
}

.acs-content {
	font-size: 1.03rem;
}

.acs-content > *:first-child {
	margin-top: 0;
}

.acs-content p,
.acs-content ul,
.acs-content ol,
.acs-content blockquote {
	margin-top: 0;
	margin-bottom: 1.35em;
}

.acs-content h2 {
	margin: 2.2em 0 0.7em;
	font-size: 1.55rem;
	line-height: 1.2;
	letter-spacing: -0.02em;
}

.acs-content strong {
	color: #12191a;
}

.acs-content .acs-image-credit,
.acs-content p:has(> small:first-child:last-child) {
	margin-top: -18px;
	color: var(--acs-muted);
	font-size: 0.78rem;
	line-height: 1.4;
}

.acs-content img {
	max-width: 100%;
	height: auto;
}

.acs-content a {
	overflow-wrap: anywhere;
}

.acs-empty {
	max-width: 680px;
	padding: 60px 0;
}

.acs-empty h1 {
	font-size: 2.2rem;
	line-height: 1.1;
}

.acs-footer {
	margin-top: auto;
	background: var(--acs-card);
	border-top: 1px solid var(--acs-line);
}

.acs-footer-inner {
	width: min(calc(100% - 40px), var(--acs-max));
	margin: 0 auto;
	padding: 26px 0 30px;
	display: flex;
	gap: 20px;
	align-items: center;
	justify-content: space-between;
	color: var(--acs-muted);
	font-size: 0.82rem;
}

.acs-footer-inner p {
	margin: 0;
}

.acs-footer-links {
	display: flex;
	gap: 7px;
	align-items: center;
}

.acs-footer a {
	text-decoration: none;
}

@media (max-width: 980px) {
	.acs-card-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 780px) {
	body.acs-site {
		font-size: 17px;
	}

	.acs-header-inner {
		width: min(calc(100% - 28px), var(--acs-max));
		padding: 24px 0 22px;
		flex-direction: column;
		gap: 16px;
	}

	.acs-nav {
		padding-top: 0;
	}

	.acs-main {
		width: min(calc(100% - 28px), var(--acs-max));
		padding: 36px 0 54px;
	}

	.acs-card-grid {
		grid-template-columns: 1fr;
		gap: 22px;
	}

	.acs-card-body {
		padding: 21px 21px 23px;
	}

	.acs-article-title {
		font-size: clamp(2rem, 10vw, 2.75rem);
	}

	.acs-featured {
		margin: 22px 0 27px;
	}

	.acs-footer-inner {
		width: min(calc(100% - 28px), var(--acs-max));
		flex-direction: column;
		align-items: flex-start;
	}
}


/* ACS discussion / author follow-ups */
.acs-discussion {
	max-width: var(--acs-reading);
	margin: 72px auto 0;
	padding-top: 42px;
	border-top: 1px solid var(--acs-line);
}

.acs-discussion-header {
	margin-bottom: 28px;
}

.acs-discussion-header h2,
.acs-reply-title {
	margin: 0 0 8px;
	color: var(--acs-ink);
	font-size: 1.45rem;
	line-height: 1.2;
	letter-spacing: -0.02em;
}

.acs-discussion-header p,
.acs-comment-notes {
	margin: 0;
	color: var(--acs-muted);
	font-size: 0.9rem;
	line-height: 1.55;
}

.acs-comment-list,
.acs-comment-list .children {
	list-style: none;
	margin: 0;
	padding: 0;
}

.acs-comment-list .children {
	margin: 18px 0 0 34px;
}

.acs-comment {
	margin: 0 0 20px;
}

.acs-comment-body {
	padding: 20px 22px;
	background: var(--acs-card);
	border: 1px solid var(--acs-line);
	border-radius: 12px;
}

.acs-author-followup > .acs-comment-body {
	border-left: 4px solid var(--acs-accent);
	background: #f2f7f4;
}

.acs-comment-author {
	display: flex;
	gap: 12px;
	align-items: center;
}

.acs-comment-author .avatar {
	width: 44px;
	height: 44px;
	border-radius: 50%;
}

.acs-comment-author-line {
	display: flex;
	flex-wrap: wrap;
	gap: 7px;
	align-items: center;
}

.acs-comment-name {
	font-size: 0.93rem;
	font-weight: 700;
}

.acs-comment-name a {
	color: var(--acs-ink);
	text-decoration: none;
}

.acs-author-badge {
	display: inline-block;
	padding: 2px 8px;
	border-radius: 999px;
	background: var(--acs-accent-dark);
	color: #fff;
	font-size: 0.69rem;
	font-weight: 750;
	letter-spacing: 0.025em;
	text-transform: uppercase;
}

.acs-comment-date {
	display: inline-block;
	margin-top: 2px;
	color: var(--acs-muted) !important;
	font-size: 0.75rem;
	text-decoration: none;
}

.acs-comment-content {
	margin-top: 15px;
	font-size: 0.95rem;
}

.acs-comment-content > *:last-child {
	margin-bottom: 0;
}

.acs-comment-awaiting {
	margin: 14px 0 0;
	color: var(--acs-muted);
	font-size: 0.82rem;
	font-style: italic;
}

.acs-comment-reply {
	margin-top: 12px;
	font-size: 0.8rem;
	font-weight: 700;
}

.acs-comment-reply a {
	text-decoration: none;
}

.acs-comment-form-wrap {
	margin-top: 38px;
	padding: 26px;
	background: var(--acs-card);
	border: 1px solid var(--acs-line);
	border-radius: 12px;
}

.acs-comment-form p {
	margin: 0 0 16px;
}

.acs-comment-form label {
	display: block;
	margin-bottom: 5px;
	color: var(--acs-ink);
	font-size: 0.82rem;
	font-weight: 700;
}

.acs-comment-form input[type="text"],
.acs-comment-form input[type="email"],
.acs-comment-form input[type="url"],
.acs-comment-form textarea {
	width: 100%;
	max-width: 100%;
	padding: 11px 12px;
	border: 1px solid #c8d1cd;
	border-radius: 8px;
	background: #fff;
	color: var(--acs-ink);
	font: inherit;
	font-size: 0.92rem;
}

.acs-comment-form textarea {
	min-height: 150px;
	resize: vertical;
}

.acs-comment-form .submit {
	padding: 10px 16px;
	border: 0;
	border-radius: 8px;
	background: var(--acs-accent-dark);
	color: #fff;
	font: inherit;
	font-size: 0.88rem;
	font-weight: 750;
	cursor: pointer;
}

.acs-comment-form .submit:hover,
.acs-comment-form .submit:focus {
	background: var(--acs-accent);
}

.acs-comment-form .logged-in-as,
.acs-comment-form .comment-notes,
.acs-comment-form .cookies-consent,
.acs-comment-form .form-allowed-tags {
	color: var(--acs-muted);
	font-size: 0.8rem;
}

@media (max-width: 780px) {
	.acs-discussion {
		margin-top: 54px;
		padding-top: 34px;
	}

	.acs-comment-list .children {
		margin-left: 16px;
	}

	.acs-comment-body,
	.acs-comment-form-wrap {
		padding: 18px;
	}
}


.acs-signed-in-link {
	margin-top: 10px !important;
	font-size: 0.82rem !important;
	font-weight: 650;
}

.acs-signed-in-link a {
	text-decoration: none;
}


/* ACS article identity, authorship, and process context */
.acs-main-single {
	width: min(calc(100% - 40px), 1180px);
}

.acs-single-layout {
	display: grid;
	grid-template-columns: minmax(0, var(--acs-reading)) minmax(240px, 300px);
	gap: 48px;
	align-items: start;
	justify-content: center;
}

.acs-single-layout .acs-article {
	width: 100%;
	max-width: var(--acs-reading);
	margin: 0;
}

.acs-article-meta {
	margin-top: 19px;
}

.acs-article-meta p {
	margin: 0;
}

.acs-byline {
	color: #3f4a4c;
	font-size: 0.94rem;
	font-weight: 600;
}

.acs-byline a {
	color: var(--acs-ink) !important;
	font-weight: 750;
	text-decoration: none;
}

.acs-byline a:hover,
.acs-byline a:focus {
	color: var(--acs-accent-dark) !important;
	text-decoration: underline;
}

.acs-ai-note {
	margin-top: 4px !important;
	color: var(--acs-muted);
	font-size: 0.78rem;
	line-height: 1.45;
}

.acs-ai-note a {
	color: var(--acs-muted) !important;
	font-weight: 650;
}

.acs-article-sidebar {
	display: grid;
	gap: 18px;
	position: sticky;
	top: 28px;
}

.acs-info-card {
	padding: 21px 22px;
	background: var(--acs-card);
	border: 1px solid var(--acs-line);
	border-radius: 12px;
	box-shadow: 0 7px 22px rgba(31, 41, 43, 0.045);
	color: #465154;
	font-size: 0.84rem;
	line-height: 1.55;
	scroll-margin-top: 24px;
}

.acs-info-card h2 {
	margin: 0 0 10px;
	color: var(--acs-ink);
	font-size: 1rem;
	line-height: 1.2;
	letter-spacing: -0.01em;
}

.acs-info-card p {
	margin: 0 0 12px;
}

.acs-info-card p:last-child {
	margin-bottom: 0;
}

.acs-author-name {
	color: var(--acs-ink) !important;
	font-weight: 750;
	text-decoration: none;
}

.acs-info-link {
	font-size: 0.8rem;
	font-weight: 700;
}

.acs-info-link a {
	text-decoration: none;
}

.acs-process-card {
	background: #f2f7f4;
	border-color: #d6e4de;
}

@media (max-width: 1020px) {
	.acs-main-single {
		width: min(calc(100% - 40px), var(--acs-reading));
	}

	.acs-single-layout {
		grid-template-columns: 1fr;
		gap: 42px;
	}

	.acs-article-sidebar {
		position: static;
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 780px) {
	.acs-main-single {
		width: min(calc(100% - 28px), var(--acs-reading));
	}

	.acs-article-meta {
		margin-top: 16px;
	}

	.acs-article-sidebar {
		grid-template-columns: 1fr;
		gap: 14px;
	}

	.acs-info-card {
		padding: 18px;
	}
}