/*
 * K1 Journal v2 — Design A ("Bản chốt — A", Spec v1, 22/10/2026).
 * Journal index (page-blog.php) + single post (single.php).
 * Scoped under .kts-jx so nothing leaks into Work / Services / generic Pages.
 * tokens.css, the 316px rail, fonts and brand mark are untouched; extra greys
 * from Spec v1 are local custom properties on .kts-jx, not new global tokens.
 * Mobile-first: base = 390px, rail appears at 1200px (shell.css), the two-column
 * reading layout needs 1400px so the 912px article fits beside the rail.
 */

.kts-jx {
	--jx-body: #1E2220;
	--jx-soft: #3F4440;
	--jx-meta: #656A64;
	--jx-rule: rgba(21, 23, 22, 0.12);
	--jx-photo: #E6E3D9;
	color: var(--kts-ink-black);
	font-family: var(--kts-font-sans);
	font-optical-sizing: auto;
}

.kts-jx a {
	color: var(--kts-deep-olive);
}

.kts-jx a:hover {
	color: #2F3B28;
}

.kts-jx a:focus-visible {
	outline: 2px solid var(--kts-focus-ring);
	outline-offset: 3px;
}

.kts-jx-serif,
.kts-jx h1,
.kts-jx h2,
.kts-jx h3 {
	font-family: var(--kts-font-serif);
}

/* ---------- Index: masthead + filter ---------- */

.kts-jx--index {
	padding-top: var(--kts-space-8);
}

.kts-jx-masthead {
	display: flex;
	flex-direction: column;
	gap: var(--kts-space-16);
}

.kts-jx-masthead__title {
	margin: 0;
	font-size: 56px;
	line-height: 1.05;
	font-weight: 300;
	letter-spacing: -0.02em;
}

.kts-jx-masthead__intro {
	margin: 0;
	font-family: var(--kts-font-serif);
	font-size: 20px;
	line-height: 1.55;
	color: var(--jx-soft);
}

.kts-jx-filter {
	display: flex;
	flex-wrap: wrap;
	gap: 4px 22px;
	margin-top: 28px;
	padding: 6px 0;
	border-top: 1px solid var(--kts-ink-black);
	border-bottom: 1px solid var(--jx-rule);
}

.kts-jx-filter a {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	font-size: 16px;
	color: var(--jx-soft);
	text-decoration: none;
}

.kts-jx-filter a[aria-current] {
	font-weight: 600;
	color: var(--kts-ink-black);
	text-decoration: underline;
	text-decoration-color: var(--kts-deep-olive);
	text-decoration-thickness: 2px;
	text-underline-offset: 7px;
}

/* ---------- Index: lead issue ---------- */

.kts-jx-lead {
	display: flex;
	flex-direction: column;
	gap: 14px;
	margin-top: 36px;
}

.kts-jx-lead__media {
	display: block;
	order: -1;
	background: var(--kts-cream-deep);
}

.kts-jx-lead__media img {
	display: block;
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
}

.kts-jx-lead__kicker,
.kts-jx-label {
	margin: 6px 0 0;
	font-family: var(--kts-font-serif);
	font-style: italic;
	font-size: 19px;
	line-height: 1.3;
	color: var(--kts-deep-olive);
}

.kts-jx-lead__title {
	margin: 0;
	font-size: 32px;
	line-height: 1.18;
	font-weight: 500;
	letter-spacing: -0.01em;
}

.kts-jx-lead__title a {
	color: var(--kts-ink-black);
	text-decoration: none;
}

.kts-jx-lead__excerpt {
	margin: 0;
	font-family: var(--kts-font-serif);
	font-size: 19px;
	line-height: 1.6;
	color: var(--jx-soft);
}

.kts-jx-meta {
	margin: 2px 0 0;
	font-size: 14px;
	line-height: 1.5;
	color: var(--jx-meta);
}

.kts-jx-lead__more {
	margin-left: 16px;
	font-weight: 600;
}

/* ---------- Index: issue rows ("Các số trước", "Đọc tiếp") ---------- */

.kts-jx-section {
	margin-top: 56px;
}

.kts-jx-section__title {
	margin: 0;
	padding-bottom: 14px;
	border-bottom: 1px solid var(--kts-ink-black);
	font-size: 24px;
	font-weight: 400;
	font-style: italic;
}

.kts-jx-section__note {
	margin: 6px 0 0;
	font-family: var(--kts-font-serif);
	font-style: italic;
	font-size: 18px;
	line-height: 1.5;
	color: var(--jx-meta);
}

.kts-jx-row {
	display: flex;
	flex-direction: column;
	gap: 8px;
	padding: 22px 0;
	border-bottom: 1px solid var(--jx-rule);
	text-decoration: none;
}

.kts-jx-row__no,
.kts-jx-row__date {
	display: none;
}

.kts-jx-row__metaline {
	font-size: 14px;
	color: var(--jx-meta);
}

.kts-jx-row__metaline em {
	font-family: var(--kts-font-serif);
	font-size: 17px;
	color: var(--kts-deep-olive);
}

.kts-jx-row__main {
	display: flex;
	flex-direction: column;
	gap: 8px;
	min-width: 0;
}

.kts-jx-row__title {
	font-family: var(--kts-font-serif);
	font-size: 22px;
	line-height: 1.32;
	font-weight: 500;
	color: var(--kts-ink-black);
	overflow-wrap: anywhere;
}

.kts-jx-row__excerpt {
	font-family: var(--kts-font-serif);
	font-size: 19px;
	line-height: 1.55;
	color: var(--jx-soft);
}

.kts-jx-row:hover .kts-jx-row__title,
.kts-jx-row:focus-visible .kts-jx-row__title {
	color: var(--kts-deep-olive);
}

/* "Trước MK." — plainer rows: title + date only */
.kts-jx-before__row {
	display: flex;
	flex-direction: column;
	gap: 6px;
	padding: 18px 0;
	border-bottom: 1px solid var(--jx-rule);
	text-decoration: none;
}

.kts-jx-before__title {
	font-family: var(--kts-font-serif);
	font-size: 19px;
	line-height: 1.38;
	color: var(--kts-ink-black);
}

.kts-jx-before__date {
	font-size: 14px;
	color: var(--jx-meta);
}

/* ---------- Newsletter / author closing line ---------- */

.kts-jx-close {
	margin-top: 64px;
	padding: 32px 0 8px;
	border-top: 1px solid var(--jx-rule);
}

.kts-jx-close__text {
	margin: 0;
	font-family: var(--kts-font-serif);
	font-style: italic;
	font-size: 22px;
	line-height: 1.45;
	color: var(--kts-ink-black);
}

.kts-jx-close__link {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	margin-top: 8px;
	font-size: 16px;
	font-weight: 600;
}

.kts-jx-empty {
	margin: var(--kts-space-48) 0;
	font-family: var(--kts-font-serif);
	font-size: 20px;
	color: var(--jx-soft);
}

/* ---------- Single post ---------- */

.kts-jx--post {
	display: flex;
	flex-direction: column;
	padding-top: var(--kts-space-8);
}

.kts-jx-post__side {
	display: flex;
	flex-direction: column;
	gap: 12px;
	order: 1;
}

/* MK. wordmark (Spec: the ember dot is used ONLY here) — links back to the Journal. */
.kts-jx-post__mark {
	align-self: flex-start;
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	font-family: var(--kts-font-serif);
	font-size: 30px;
	line-height: 1;
	color: var(--kts-ink-black);
	text-decoration: none;
}

.kts-jx .kts-jx-post__mark,
.kts-jx .kts-jx-post__mark:hover {
	color: var(--kts-ink-black);
}

.kts-jx .kts-jx-post__mark span {
	color: var(--kts-ember);
}

.kts-jx-post__meta {
	margin: 0;
	font-size: 14px;
	line-height: 1.7;
	color: var(--jx-meta);
}

.kts-jx-post__meta span {
	display: block;
}

.kts-jx-post__author {
	margin: 0;
	padding-top: 14px;
	border-top: 1px solid var(--jx-rule);
	font-family: var(--kts-font-serif);
	font-size: 18px;
	line-height: 1.25;
}

.kts-jx-post__author span {
	display: block;
	font-size: 14px;
	font-style: italic;
	color: var(--jx-meta);
}

.kts-jx-post__head {
	order: 2;
	display: flex;
	flex-direction: column;
	gap: 18px;
	margin-top: 24px;
}

.kts-jx-post__title {
	margin: 0;
	font-size: 38px;
	line-height: 1.16;
	font-weight: 500;
	letter-spacing: -0.02em;
}

.kts-jx-post__dek {
	margin: 0;
	font-family: var(--kts-font-serif);
	font-style: italic;
	font-size: 21px;
	line-height: 1.5;
	color: var(--jx-soft);
}

.kts-jx-post__cover {
	order: 3;
	margin: 32px 0 0;
}

.kts-jx-post__cover img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 16 / 9;
	object-fit: cover;
	background: var(--jx-photo);
}

.kts-jx-toc {
	order: 4;
	margin-top: 40px;
	padding-top: 14px;
	border-top: 1px solid var(--kts-ink-black);
}

.kts-jx-toc__title {
	margin: 0 0 8px;
	font-family: var(--kts-font-serif);
	font-style: italic;
	font-size: 19px;
	color: var(--kts-ink-black);
}

.kts-jx-toc ol {
	margin: 0;
	padding: 0;
	list-style: none;
}

.kts-jx-toc a {
	display: block;
	padding: 9px 0 9px 12px;
	font-family: var(--kts-font-serif);
	font-size: 17px;
	line-height: 1.45;
	color: var(--jx-soft);
	text-decoration: none;
}

.kts-jx-toc a:hover {
	color: var(--kts-deep-olive);
	box-shadow: inset 2px 0 0 var(--kts-deep-olive);
}

.kts-jx-body {
	order: 5;
	margin-top: 40px;
	min-width: 0;
	font-family: var(--kts-font-serif);
	font-size: 19px;
	line-height: 1.72;
	color: var(--jx-body);
	overflow-wrap: anywhere;
}

.kts-jx-body > * {
	margin: 0 0 24px;
}

.kts-jx-body > :last-child {
	margin-bottom: 0;
}

.kts-jx-body h2 {
	margin: 64px 0 24px;
	font-size: 30px;
	line-height: 1.2;
	font-weight: 500;
	color: var(--kts-ink-black);
}

.kts-jx-body h3 {
	margin: 40px 0 16px;
	font-size: 22px;
	line-height: 1.35;
	font-weight: 600;
	color: var(--kts-ink-black);
}

.kts-jx-body > :first-child {
	margin-top: 0;
}

.kts-jx-body ul,
.kts-jx-body ol {
	padding-left: 1.25em;
}

.kts-jx-body li + li {
	margin-top: 8px;
}

.kts-jx-body a {
	color: var(--kts-ink-black);
	text-decoration: underline;
	text-decoration-color: var(--kts-deep-olive);
	text-underline-offset: 4px;
}

.kts-jx-body blockquote {
	margin: 40px 0;
	padding: 0;
	border: 0;
	font-style: italic;
	font-size: 27px;
	line-height: 1.38;
	color: var(--kts-ink-black);
}

.kts-jx-body blockquote p {
	margin: 0;
}

.kts-jx-body figure {
	margin: 40px 0;
}

.kts-jx-body img {
	display: block;
	width: 100%;
	height: auto;
}

.kts-jx-body figcaption {
	margin-top: 14px;
	font-style: italic;
	font-size: 17px;
	line-height: 1.5;
	color: var(--jx-soft);
}

.kts-jx-body .alignwide,
.kts-jx-body .alignfull {
	width: 100%;
	max-width: 100%;
	margin-left: 0;
}

.kts-jx-post__after {
	order: 6;
	margin-top: 56px;
	padding: 32px 0;
	border-top: 1px solid var(--kts-ink-black);
	border-bottom: 1px solid var(--jx-rule);
}

.kts-jx-post__related {
	order: 7;
	margin: 24px 0 0;
	font-size: 15px;
	color: var(--jx-meta);
}

.kts-jx-post__next {
	order: 8;
	margin-top: 56px;
}

.kts-jx-post__return {
	display: inline-flex;
	align-items: center;
	min-height: 48px;
	margin-top: 12px;
	font-size: 15px;
	font-weight: 600;
}

/* ---------- 768px: more air, still one column ---------- */

@media (min-width: 768px) {
	.kts-jx-masthead__title {
		font-size: 72px;
	}

	.kts-jx-masthead__intro {
		font-size: 22px;
	}

	.kts-jx-lead__title {
		font-size: 40px;
	}

	.kts-jx-post__title {
		font-size: 46px;
	}

	.kts-jx-post__side,
	.kts-jx-post__head,
	.kts-jx-body,
	.kts-jx-post__after,
	.kts-jx-toc,
	.kts-jx-post__next,
	.kts-jx-post__related {
		max-width: 640px;
	}

	.kts-jx-body {
		font-size: 20px;
		line-height: 1.75;
	}
}

/* ---------- 1200px: rail is persistent; index becomes a table of issues ---------- */

@media (min-width: 1200px) {
	.kts-jx--index {
		max-width: 1000px;
		padding: 24px 24px 0 8px;
	}

	.kts-jx-masthead {
		display: grid;
		grid-template-columns: repeat(12, minmax(0, 1fr));
		column-gap: 32px;
		align-items: end;
	}

	.kts-jx-masthead__title {
		grid-column: span 6;
		font-size: clamp(72px, 7.8vw, 112px);
		line-height: 0.95;
		letter-spacing: -0.03em;
	}

	.kts-jx-masthead__intro {
		grid-column: 7 / span 6;
		padding-bottom: 10px;
	}

	.kts-jx-filter {
		margin-top: 48px;
		gap: 4px 32px;
	}

	.kts-jx-filter a {
		min-height: 48px;
	}

	.kts-jx-lead {
		display: grid;
		grid-template-columns: repeat(12, minmax(0, 1fr));
		column-gap: 32px;
		margin-top: 0;
		padding: 64px 0;
		border-bottom: 1px solid var(--jx-rule);
	}

	.kts-jx-lead__text {
		grid-column: 1 / -1;
		display: flex;
		flex-direction: column;
		gap: 18px;
	}

	.kts-jx-lead--has-media .kts-jx-lead__text {
		grid-column: span 6;
		grid-row: 1;
	}

	.kts-jx-lead__media {
		grid-column: 7 / span 6;
		grid-row: 1;
		order: 0;
	}

	.kts-jx-lead__kicker {
		font-size: 22px;
	}

	.kts-jx-lead__title {
		font-size: clamp(38px, 3.5vw, 50px);
		line-height: 1.13;
		letter-spacing: -0.015em;
	}

	.kts-jx-lead__excerpt {
		font-size: 21px;
		line-height: 1.6;
	}

	.kts-jx-meta {
		font-size: 15px;
	}

	.kts-jx-section {
		margin-top: 72px;
	}

	.kts-jx-section__title {
		padding-bottom: 16px;
		font-size: 28px;
	}

	.kts-jx-row {
		display: grid;
		grid-template-columns: minmax(0, 1fr) 140px;
		column-gap: 32px;
		align-items: baseline;
		padding: 32px 0;
	}

	.kts-jx-row--numbered {
		grid-template-columns: 120px minmax(0, 1fr) 140px;
	}

	.kts-jx-row__metaline {
		display: none;
	}

	.kts-jx-row__no {
		display: flex;
		flex-direction: column;
		gap: 6px;
	}

	.kts-jx-row__num {
		font-family: var(--kts-font-serif);
		font-size: 44px;
		line-height: 1;
		font-weight: 300;
		color: var(--kts-deep-olive);
	}

	.kts-jx-row__kind {
		font-size: 13px;
		color: var(--jx-meta);
	}

	.kts-jx-row__main {
		gap: 10px;
	}

	.kts-jx-row__title {
		font-size: 30px;
		line-height: 1.25;
	}

	.kts-jx-row__date {
		display: block;
		font-size: 15px;
		color: var(--jx-meta);
		text-align: right;
	}

	.kts-jx-before {
		display: grid;
		grid-template-columns: repeat(12, minmax(0, 1fr));
		column-gap: 32px;
		margin-top: 96px;
	}

	.kts-jx-before__head {
		grid-column: span 4;
	}

	.kts-jx-before__head .kts-jx-section__title {
		padding-bottom: 0;
		border-bottom: 0;
	}

	.kts-jx-before__list {
		grid-column: 5 / span 8;
		border-top: 1px solid var(--kts-ink-black);
	}

	.kts-jx-before__row {
		flex-direction: row;
		justify-content: space-between;
		gap: 32px;
		align-items: baseline;
		padding: 20px 0;
	}

	.kts-jx-before__title {
		font-size: 21px;
		line-height: 1.4;
	}

	.kts-jx-before__date {
		flex: 0 0 auto;
		font-size: 15px;
	}

	.kts-jx-close {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-between;
		align-items: baseline;
		gap: 16px 40px;
		margin-top: 112px;
		padding: 40px 0;
	}

	.kts-jx-close__text {
		font-size: 26px;
	}

	.kts-jx--post {
		padding-top: 24px;
	}

	.kts-jx-post__title {
		font-size: 52px;
	}
}

/* ---------- 1400px: 200 | 640 reading layout (912px) beside the rail ---------- */

@media (min-width: 1400px) {
	.kts-jx--post {
		display: grid;
		grid-template-columns: 200px minmax(0, 640px);
		column-gap: 72px;
		max-width: 912px;
		margin: 0 auto;
		padding-top: 24px;
	}

	.kts-jx-post__side {
		grid-column: 1;
		grid-row: 1;
		padding-top: 10px;
		max-width: none;
	}

	.kts-jx-post__head {
		grid-column: 2;
		grid-row: 1;
		margin-top: 0;
		max-width: none;
	}

	.kts-jx-post__title {
		font-size: 58px;
		line-height: 1.12;
	}

	.kts-jx-post__dek {
		font-size: 25px;
	}

	.kts-jx-post__cover {
		grid-column: 1 / span 2;
		grid-row: 2;
		margin-top: 56px;
	}

	.kts-jx-toc {
		grid-column: 1;
		grid-row: 3;
		align-self: start;
		margin-top: 64px;
		max-width: none;
	}

	.kts-jx-body {
		grid-column: 2;
		grid-row: 3;
		margin-top: 64px;
		max-width: none;
		font-size: 20px;
		line-height: 1.75;
	}

	.kts-jx-body > * {
		margin-bottom: 26px;
	}

	.kts-jx-body h2 {
		margin-top: 80px;
		font-size: 38px;
		line-height: 1.2;
	}

	.kts-jx-body h3 {
		margin-top: 48px;
		font-size: 25px;
		line-height: 1.32;
	}

	.kts-jx-body blockquote {
		margin: 56px 0 56px -272px;
		padding: 36px 0 36px 272px;
		border-top: 1px solid var(--kts-deep-olive);
		border-bottom: 1px solid var(--jx-rule);
		font-size: 36px;
		line-height: 1.32;
	}

	.kts-jx-body figure.alignwide,
	.kts-jx-body .alignwide {
		width: calc(100% + 272px);
		max-width: none;
		margin: 48px 0 48px -272px;
	}

	.kts-jx-body figure.alignwide figcaption {
		margin-left: 272px;
	}

	.kts-jx-post__after {
		grid-column: 1 / span 2;
		grid-row: 4;
		margin-top: 80px;
		max-width: none;
		display: grid;
		grid-template-columns: 200px minmax(0, 1fr);
		column-gap: 72px;
		align-items: center;
	}

	.kts-jx-post__related {
		grid-column: 1 / span 2;
		grid-row: 5;
		max-width: none;
	}

	.kts-jx-post__next {
		grid-column: 1 / span 2;
		grid-row: 6;
		display: grid;
		grid-template-columns: 200px minmax(0, 1fr);
		column-gap: 72px;
		margin-top: 64px;
		max-width: none;
	}

	.kts-jx-post__next .kts-jx-section__title {
		padding-bottom: 0;
		border-bottom: 0;
		font-size: 24px;
	}

	/* Rows without an issue number must not be squeezed into the 72px number column. */
	.kts-jx-post__next .kts-jx-row {
		grid-template-columns: minmax(0, 1fr);
		column-gap: 20px;
		padding: 22px 0;
	}

	.kts-jx-post__next .kts-jx-row--numbered {
		grid-template-columns: 72px minmax(0, 1fr);
	}

	.kts-jx-post__next .kts-jx-row__excerpt {
		display: none;
	}

	.kts-jx-post__next .kts-jx-row--numbered .kts-jx-row__date {
		grid-column: 2;
	}

	.kts-jx-post__next .kts-jx-row__date {
		display: block;
		margin-top: 6px;
		font-size: 14px;
		text-align: left;
	}

	.kts-jx-post__next .kts-jx-row__num {
		font-size: 34px;
	}

	.kts-jx-post__next .kts-jx-row__title {
		font-size: 24px;
		line-height: 1.32;
	}

	.kts-jx-post__next-list {
		border-top: 1px solid var(--kts-ink-black);
	}
}

@media print {
	.kts-jx-toc,
	.kts-jx-post__next {
		display: none;
	}
}