/*
Theme Name: Estudio Biblico
Theme URI: https://example.com/estudio-biblico
Author: Jose Sanchez
Description: Tema base para un sitio personal de estudio biblico catolico.
Version: 0.1.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
Text Domain: estudio-biblico
*/

:root {
	--eb-color-ink: #111827;
	--eb-color-muted: #374151;
	--eb-color-line: #8793a1;
	--eb-color-bg: #ffffff;
	--eb-color-surface: #ffffff;
	--eb-color-accent: #8f2f2f;
	--eb-color-accent-dark: #6f2424;
	--eb-content-width: 1120px;
}

* {
	box-sizing: border-box;
}

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

body {
	margin: 0;
	background: var(--eb-color-bg);
	color: var(--eb-color-ink);
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	font-size: 18px;
	line-height: 1.65;
}

a {
	color: var(--eb-color-accent-dark);
}

a:hover,
a:focus {
	color: var(--eb-color-accent);
}

.site-header,
.site-footer {
	background: var(--eb-color-surface);
	border-color: var(--eb-color-line);
	border-style: solid;
	border-width: 0 0 1px;
}

.site-footer {
	border-width: 1px 0 0;
}

.site-footer__inner,
.site-main {
	width: min(100% - 32px, var(--eb-content-width));
	margin: 0 auto;
}

.site-header__inner {
	width: 100%;
	margin: 0 auto;
	padding: 22px clamp(16px, 3vw, 40px);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 24px;
}

.site-branding {
	display: grid;
	gap: 2px;
}

.site-title {
	margin: 0;
	font-size: 1.35rem;
	line-height: 1.2;
}

.site-title a {
	color: var(--eb-color-ink);
	text-decoration: none;
}

.site-description {
	margin: 0;
	color: var(--eb-color-muted);
	font-size: 0.95rem;
}

.site-navigation ul {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.site-navigation a {
	text-decoration: none;
}

.site-main {
	padding: 40px 0 56px;
}

body.page-template-template-timeline-inicial .site-main,
body.page-template-template-timeline-inicial-php .site-main,
body.page-template-template-biblia .site-main,
body.page-template-template-biblia-php .site-main,
body.page-template-template-antiguo-testamento .site-main,
body.page-template-template-antiguo-testamento-php .site-main,
body.page-template-template-nuevo-testamento .site-main,
body.page-template-template-nuevo-testamento-php .site-main,
body.page-template-template-base-estudio .site-main,
body.page-template-template-base-estudio-php .site-main {
	width: 100%;
	padding: 28px clamp(16px, 3vw, 40px) 56px;
}

body.page-template-template-timeline-inicial,
body.page-template-template-timeline-inicial-php,
body.page-template-template-biblia,
body.page-template-template-biblia-php,
body.page-template-template-antiguo-testamento,
body.page-template-template-antiguo-testamento-php,
body.page-template-template-nuevo-testamento,
body.page-template-template-nuevo-testamento-php,
body.page-template-template-base-estudio,
body.page-template-template-base-estudio-php {
	padding-top: 48px;
}

.entry {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: clamp(22px, 4vw, 42px);
}

.entry + .entry {
	margin-top: 24px;
}

.entry-title {
	margin-top: 0;
	line-height: 1.2;
}

.entry-meta {
	color: var(--eb-color-muted);
	font-size: 0.95rem;
}

.archive-header {
	margin-bottom: 24px;
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: clamp(22px, 4vw, 42px);
}

.archive-header h1 {
	margin: 0;
	line-height: 1.1;
}

.archive-header p:last-child {
	max-width: 720px;
	margin: 10px 0 0;
	color: var(--eb-color-muted);
}

.glossary-index {
	display: grid;
	gap: 14px;
}

.glossary-entry {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: 20px;
}

.glossary-entry__title {
	margin: 0 0 6px;
	font-size: 1.25rem;
	line-height: 1.2;
}

.glossary-entry__title a {
	text-decoration: none;
}

.glossary-entry p {
	margin: 0;
	color: var(--eb-color-muted);
}

.site-footer__inner {
	padding: 24px 0;
	color: var(--eb-color-muted);
	font-size: 0.95rem;
}

.timeline-page {
	display: grid;
	gap: 28px;
	width: 100%;
	max-width: 100%;
	min-width: 0;
}

.page-intro {
	display: flex;
	align-items: baseline;
	gap: 12px;
	flex-wrap: wrap;
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: 18px clamp(18px, 3vw, 28px);
}

.page-intro h1 {
	margin: 0;
	font-size: 1rem;
	line-height: 1.1;
}

.page-intro p {
	margin: 0;
	color: var(--eb-color-muted);
	font-size: 1rem;
	line-height: 1.5;
}

.study-breadcrumbs {
	position: fixed;
	top: 0;
	right: 0;
	left: 0;
	z-index: 50;
	display: flex;
	align-items: center;
	min-height: 48px;
	margin: 0;
	border-bottom: 1px solid #e5e9ef;
	background: #ffffff;
	padding: 10px clamp(16px, 3vw, 40px);
	font-family: Arial, sans-serif;
	font-size: 1.12rem;
	box-shadow: 0 1px 8px rgba(17, 24, 39, 0.05);
}

body.admin-bar .study-breadcrumbs {
	top: 32px;
}

@media (max-width: 782px) {
	body.admin-bar .study-breadcrumbs {
		top: 46px;
	}
}

.study-breadcrumbs ol {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.study-breadcrumbs li {
	display: inline-flex;
	align-items: center;
	gap: 6px;
}

.study-breadcrumbs li + li::before {
	color: var(--eb-color-muted);
	content: ">";
}

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

.study-breadcrumbs span {
	color: var(--eb-color-muted);
}

.navigation-level,
.module-header {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: clamp(20px, 4vw, 32px);
}

.navigation-level {
	overflow: hidden;
	max-width: 100%;
	min-width: 0;
}

.navigation-level__heading {
	max-width: 860px;
	margin: 0 0 22px;
	text-align: left;
}

.navigation-level__heading h1,
.module-header h1 {
	margin: 0;
	font-size: clamp(1.8rem, 3vw, 2.4rem);
	line-height: 1.1;
}

.navigation-level__heading p:last-child,
.module-header p {
	max-width: 820px;
	margin: 10px 0 0;
	color: var(--eb-color-muted);
	font-size: 0.95rem;
}

.timeline-note {
	max-width: 920px;
	margin: 0 0 26px;
	border-left: 4px solid var(--eb-color-accent-dark);
	background: #fafafa;
	padding: 12px 14px;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.95rem;
}

.timeline-disclosure {
	display: grid;
	gap: 6px;
	max-width: 100%;
	min-width: 0;
}

.timeline-disclosure:not([open]) + .study-foundations {
	margin-top: -22px;
}

.timeline-disclosure > summary {
	display: inline-flex;
	align-items: center;
	justify-self: end;
	gap: 10px;
	width: fit-content;
	border: 0;
	border-radius: 0;
	background: transparent;
	padding: 0;
	color: var(--eb-color-ink);
	cursor: pointer;
	font-family: Arial, sans-serif;
	font-size: 0.9rem;
	font-weight: 400;
	list-style: none;
}

.timeline-disclosure > summary::-webkit-details-marker {
	display: none;
}

.timeline-disclosure > summary::before {
	width: 30px;
	height: 16px;
	background:
		radial-gradient(circle at 3px 50%, var(--eb-color-accent-dark) 0 3px, transparent 3.5px),
		radial-gradient(circle at 15px 50%, var(--eb-color-accent-dark) 0 3px, transparent 3.5px),
		radial-gradient(circle at 27px 50%, var(--eb-color-accent-dark) 0 3px, transparent 3.5px),
		linear-gradient(var(--eb-color-accent-dark), var(--eb-color-accent-dark)) 0 50% / 100% 2px no-repeat;
	content: "";
}

.timeline-disclosure > summary:hover,
.timeline-disclosure > summary:focus {
	color: var(--eb-color-ink);
	text-decoration: none;
}

.timeline-scroll {
	position: relative;
	display: block;
	width: 100%;
	max-width: 100%;
	min-width: 0;
	box-sizing: border-box;
	contain: inline-size;
	overflow-x: auto;
	overflow-y: hidden;
	overscroll-behavior-x: contain;
	padding-bottom: 8px;
	scrollbar-color: var(--eb-color-line) transparent;
	scrollbar-width: thin;
}

.timeline-scroll::-webkit-scrollbar {
	height: 6px;
}

.timeline-scroll::-webkit-scrollbar-track {
	background: transparent;
}

.timeline-scroll::-webkit-scrollbar-thumb {
	border-radius: 999px;
	background: var(--eb-color-line);
}

.timeline-scroll:focus {
	outline: none;
}

.timeline-scroll:focus-visible {
	outline: 1px solid rgba(111, 36, 36, 0.25);
	outline-offset: 2px;
}

.timeline-scroll__inner {
	display: inline-block;
	width: 100%;
	max-width: none;
	min-width: 1120px;
	vertical-align: top;
}

.testament-band {
	display: grid;
	grid-template-columns: minmax(520px, 2.6fr) minmax(320px, 1fr);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	overflow: hidden;
}

.testament-band__segment {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 41px;
	padding: 0 clamp(18px, 3vw, 30px);
	color: #ffffff;
	text-align: center;
	text-decoration: none;
}

.testament-band__segment + .testament-band__segment {
	border-left: 3px solid rgba(255, 255, 255, 0.7);
}

.testament-band__segment strong {
	font-family: Arial, sans-serif;
	font-size: clamp(1rem, 1.7vw, 1.35rem);
	font-weight: 800;
	line-height: 1.1;
}

.testament-band__segment.is-old-testament {
	background: #7d2f2f;
}

.testament-band__segment.is-new-testament {
	background: #2f5d6a;
}

.testament-band__segment:hover,
.testament-band__segment:focus {
	color: #ffffff;
	filter: brightness(1.06);
}

.timeline-references {
	margin: 0 0 8px;
}

.timeline-references h2 {
	margin: 0 0 14px;
	font-family: Arial, sans-serif;
	font-size: 1.05rem;
}

.timeline-reference-grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(180px, 1fr));
	gap: 0;
	align-items: end;
}

.timeline-reference {
	display: grid;
	grid-template-columns: 1fr;
	gap: 8px;
	padding: 0 12px 8px;
	justify-items: center;
}

.timeline-reference__frame {
	display: grid;
	gap: 8px;
	width: min(100%, 230px);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	background: #fafafa;
	padding: 12px;
	transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

.timeline-reference:hover .timeline-reference__frame,
.timeline-reference:focus-within .timeline-reference__frame {
	border-color: var(--eb-color-accent-dark);
	box-shadow: 0 0 0 3px rgba(125, 47, 47, 0.12);
}

.timeline-reference.is-old-testament:hover .timeline-reference__frame,
.timeline-reference.is-old-testament:focus-within .timeline-reference__frame {
	background: #fff7f2;
	border-color: #7d2f2f;
	box-shadow: 0 0 0 3px rgba(125, 47, 47, 0.12);
}

.timeline-reference.is-new-testament:hover .timeline-reference__frame,
.timeline-reference.is-new-testament:focus-within .timeline-reference__frame {
	background: #f1f8fb;
	border-color: #2f5d6a;
	box-shadow: 0 0 0 3px rgba(47, 93, 106, 0.14);
}

.timeline-reference__connector {
	width: 5px;
	height: 34px;
}

.timeline-reference.is-old-testament .timeline-reference__connector {
	background: #7d2f2f;
}

.timeline-reference.is-new-testament .timeline-reference__connector {
	background: #2f5d6a;
}

.timeline-reference h3 {
	margin: 0;
	font-size: 0.98rem;
	line-height: 1.2;
	text-align: center;
}

.timeline-reference p {
	max-width: 210px;
	margin: 0;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	line-height: 1.4;
	text-align: center;
}

.timeline-reference strong {
	display: block;
	max-width: 210px;
	padding: 0;
	color: var(--eb-color-ink);
	font-family: Arial, sans-serif;
	font-size: 0.67rem;
	font-weight: 800;
	line-height: 1.2;
	text-align: center;
}

.timeline-scroll__inner--old-testament {
	width: 2100px;
	max-width: none;
	min-width: 2100px;
}

.period-timeline {
	display: grid;
	gap: 0;
}

.period-reference-grid {
	display: grid;
	grid-template-columns: repeat(12, minmax(170px, 1fr));
	gap: 0;
	align-items: end;
}

.period-reference {
	display: grid;
	gap: 6px;
	padding: 0 10px;
	justify-items: center;
}

.period-reference.is-above {
	grid-template-rows: 1fr 34px auto;
	padding-bottom: 0;
}

.period-reference.is-below {
	grid-template-rows: auto 34px 1fr;
	align-items: start;
	padding-top: 0;
}

.period-reference-grid--above {
	min-height: 220px;
	align-items: end;
}

.period-reference-grid--below {
	min-height: 220px;
	align-items: start;
}

.period-reference-spacer {
	display: block;
	min-width: 0;
}

.period-reference__frame {
	display: grid;
	gap: 8px;
	width: min(100%, 185px);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	background: #ffffff;
	padding: 12px;
	color: var(--eb-color-ink);
	text-decoration: none;
	transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

.period-reference:hover .period-reference__frame,
.period-reference:focus-within .period-reference__frame {
	border-color: var(--eb-color-accent-dark);
	box-shadow: 0 0 0 3px rgba(125, 47, 47, 0.1);
}

.period-reference__connector {
	width: 5px;
	height: 34px;
	background: var(--period-color, var(--eb-color-line));
}

.period-reference h3 {
	margin: 0;
	font-size: 0.98rem;
	font-weight: 600;
	line-height: 1.2;
	text-align: center;
}

.period-reference p {
	max-width: 170px;
	margin: 0;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	line-height: 1.4;
	text-align: center;
}

.period-reference strong {
	display: block;
	max-width: 220px;
	color: var(--eb-color-ink);
	font-family: Arial, sans-serif;
	font-size: 0.67rem;
	font-weight: 650;
	line-height: 1.2;
	text-align: center;
}

.period-band {
	display: grid;
	grid-template-columns:
		minmax(170px, 1fr)
		minmax(180px, 1fr)
		minmax(150px, 0.9fr)
		minmax(150px, 0.9fr)
		minmax(170px, 1fr)
		minmax(160px, 0.95fr)
		minmax(150px, 0.9fr)
		minmax(150px, 0.9fr)
		minmax(170px, 1fr)
		minmax(170px, 1fr);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	overflow: hidden;
}

.period-band__segment {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 38px;
	padding: 0 12px;
	background: var(--period-color, var(--eb-color-muted));
	color: #ffffff;
	text-align: center;
	text-decoration: none;
}

.period-band__segment + .period-band__segment {
	border-left: 2px solid rgba(255, 255, 255, 0.72);
}

.period-band__segment strong {
	font-family: Arial, sans-serif;
	font-size: 0.86rem;
	font-weight: 600;
	line-height: 1.15;
}

.period-band__segment.is-disabled {
	opacity: 0.82;
}

.period-band__segment:hover,
.period-band__segment:focus {
	color: #ffffff;
	filter: brightness(1.06);
}

.is-introduction {
	--period-color: #4f5963;
}

.is-origin {
	--period-color: #7d2f2f;
}

.is-patriarchs {
	--period-color: #7a4a2a;
}

.is-exodus {
	--period-color: #646b2f;
}

.is-land {
	--period-color: #4c6a3b;
}

.is-judges {
	--period-color: #2f6a5d;
}

.is-monarchy {
	--period-color: #2f5d6a;
}

.is-prophets {
	--period-color: #3f4f7a;
}

.is-divided {
	--period-color: #5b477a;
}

.is-exile {
	--period-color: #6b3f68;
}

.is-persian {
	--period-color: #72505b;
}

.is-greek {
	--period-color: #6f5b24;
}

.is-wisdom {
	--period-color: #4f5963;
}

.bible-timeline {
	position: relative;
	display: grid;
	grid-template-columns: repeat(4, minmax(250px, 1fr));
	gap: 0;
	min-width: 1120px;
	margin: 0;
	padding: 138px 0 146px;
	list-style: none;
}

.bible-timeline::before {
	position: absolute;
	top: 50%;
	right: 90px;
	left: 90px;
	height: 3px;
	background: var(--eb-color-ink);
	border-radius: 999px;
	content: "";
}

.bible-timeline__item {
	position: relative;
	min-height: 40px;
}

.bible-timeline__item a,
.bible-timeline__item span {
	position: relative;
	display: grid;
	gap: 6px;
	max-width: 245px;
	min-height: 118px;
	margin: 0 auto;
	border: 0;
	background: transparent;
	padding: 0 14px;
	color: var(--eb-color-ink);
	text-decoration: none;
}

.bible-timeline__item a::before,
.bible-timeline__item span::before {
	position: absolute;
	left: 50%;
	z-index: 1;
	width: 46px;
	height: 46px;
	margin-left: -23px;
	background: var(--eb-color-accent-dark);
	border: 5px solid var(--eb-color-surface);
	border-radius: 50%;
	box-shadow: 0 0 0 1px var(--eb-color-line);
	content: "";
}

.bible-timeline__item.is-above a,
.bible-timeline__item.is-above span {
	padding-bottom: 54px;
	transform: translateY(-82px);
}

.bible-timeline__item.is-above a::before,
.bible-timeline__item.is-above span::before {
	bottom: -22px;
}

.bible-timeline__item.is-below a,
.bible-timeline__item.is-below span {
	padding-top: 54px;
	transform: translateY(82px);
}

.bible-timeline__item.is-below a::before,
.bible-timeline__item.is-below span::before {
	top: -22px;
}

.bible-timeline__item i {
	color: var(--eb-color-ink);
	font-family: Arial, sans-serif;
	font-size: 1.8rem;
	font-style: normal;
	font-weight: 800;
	line-height: 1;
}

.bible-timeline__item strong {
	font-family: Arial, sans-serif;
	font-size: 1.1rem;
	font-weight: 800;
	line-height: 1.2;
}

.bible-timeline__item small {
	color: var(--eb-color-accent-dark);
	font-family: Arial, sans-serif;
	font-size: 0.88rem;
	font-style: normal;
	font-weight: 700;
	line-height: 1.3;
}

.bible-timeline__item em {
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.82rem;
	font-style: normal;
	font-weight: 400;
	line-height: 1.4;
}

.bible-timeline__item.is-current a,
.bible-timeline__item.is-current span {
	color: var(--eb-color-ink);
}

.bible-timeline__item.is-current a::before,
.bible-timeline__item.is-current span::before {
	background: var(--eb-color-accent-dark);
}

.bible-timeline__item.is-disabled span {
	color: var(--eb-color-muted);
}

.bible-timeline__item.is-disabled span::before {
	background: var(--eb-color-line);
}

.study-foundations {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: clamp(20px, 4vw, 32px);
}

.study-foundations__heading {
	max-width: 860px;
	margin: 0 auto 22px;
	text-align: center;
}

.study-foundations__heading h2 {
	margin: 0;
	line-height: 1.15;
}

.study-foundations__heading p {
	margin: 10px 0 0;
	color: var(--eb-color-muted);
	font-size: 0.95rem;
}

.foundation-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 16px;
}

.foundation-card {
	display: grid;
	align-content: center;
	gap: 8px;
	min-height: 128px;
	border-radius: 6px;
	padding: 20px;
	color: #ffffff;
	text-decoration: none;
	transition: filter 140ms ease, transform 140ms ease;
}

.foundation-card:hover,
.foundation-card:focus {
	color: #ffffff;
	filter: brightness(1.06);
	transform: translateY(-1px);
}

.foundation-card span {
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	font-weight: 800;
	text-transform: uppercase;
}

.foundation-card strong {
	font-size: 1.2rem;
	line-height: 1.2;
}

.foundation-card.is-foundation {
	background: #7d2f2f;
}

.foundation-card.is-interpretation {
	background: #2f5d6a;
}

.foundation-card.is-method {
	background: #4c5f3b;
}

.study-topic-page {
	display: grid;
	gap: 24px;
}

.study-topic {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: clamp(22px, 4vw, 42px);
}

.study-topic__header {
	margin-bottom: 22px;
}

.study-topic__header h1 {
	margin: 0;
	line-height: 1.12;
}

.study-topic__header p:last-child {
	margin: 10px 0 0;
	color: var(--eb-color-muted);
	font-size: 1rem;
	line-height: 1.55;
}

.study-topic__content {
	width: 100%;
	color: var(--eb-color-ink);
}

.study-topic__sections {
	display: grid;
	gap: 14px;
}

.study-topic__section h2,
.study-topic__important h2,
.study-topic__panel h2,
.study-topic__references h2,
.study-topic__terms h2,
.study-topic__notes h2 {
	margin: 0;
	font-size: 1.16rem;
	font-weight: 600;
	line-height: 1.25;
}

.study-topic__section,
.study-topic__important,
.study-topic__panel,
.study-topic__references,
.study-topic__terms,
.study-topic__notes {
	border: 1px solid #d8dee6;
	border-radius: 6px;
	background: #ffffff;
	box-shadow: 0 8px 18px rgba(17, 24, 39, 0.04);
}

.study-topic__collapsible > summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 18px;
	min-height: 54px;
	border-bottom: 1px solid transparent;
	padding: 14px 16px;
	cursor: pointer;
	list-style: none;
}

.study-topic__collapsible > summary::-webkit-details-marker {
	display: none;
}

.study-topic__collapsible > summary::after {
	display: inline-grid;
	flex: 0 0 auto;
	place-items: center;
	width: 30px;
	height: 30px;
	border: 1px solid #c7d0da;
	border-radius: 50%;
	background: #ffffff;
	color: var(--eb-color-muted);
	content: "+";
	font-family: Arial, sans-serif;
	font-size: 1.55rem;
	font-weight: 400;
	line-height: 1;
}

.study-topic__collapsible[open] > summary::after {
	content: "-";
}

.study-topic__collapsible > summary:hover h2,
.study-topic__collapsible > summary:focus h2 {
	color: var(--eb-color-accent-dark);
}

.study-topic__collapsible > summary:hover::after,
.study-topic__collapsible > summary:focus::after {
	border-color: var(--eb-color-accent-dark);
	color: var(--eb-color-accent-dark);
}

.study-topic__collapsible[open] > summary {
	border-bottom-color: #edf0f4;
}

.study-topic__collapsible > :not(summary) {
	margin-right: 18px;
	margin-left: 18px;
}

.study-topic__collapsible > :last-child {
	margin-bottom: 18px;
}

.study-topic__collapsible:not([open]) {
	box-shadow: none;
}

.study-topic__section p:last-child {
	margin-bottom: 0;
}

.study-topic__list {
	margin: -4px 0 16px;
	padding-left: 24px;
}

.study-topic__list li + li {
	margin-top: 4px;
}

.study-topic__content strong {
	color: var(--eb-color-ink);
	font-weight: 650;
}

.study-topic__important {
	margin: 0 0 24px;
	background: #ffffff;
}

.study-topic__important ul {
	margin: 0;
	padding-left: 34px;
}

.study-topic__important li {
	color: var(--eb-color-ink);
	font-weight: 500;
}

.study-topic__important li + li {
	margin-top: 6px;
}

.study-topic__panel,
.study-topic__references,
.study-topic__terms,
.study-topic__notes {
	margin-top: 22px;
}

.study-topic__panel {
	background: #ffffff;
}

.study-topic__references {
	background: #ffffff;
}

.study-topic__terms {
	background: #ffffff;
}

.study-topic__terms dl {
	display: grid;
	gap: 12px;
	margin: 0;
	padding-left: 12px;
}

.study-topic__terms dt {
	color: var(--eb-color-ink);
	font-weight: 650;
	line-height: 1.25;
}

.study-topic__terms dd {
	margin: 4px 0 0;
	color: var(--eb-color-muted);
	font-size: 0.96rem;
	line-height: 1.5;
}

.study-topic__notes {
	background: #ffffff;
}

.study-topic__content p,
.study-topic__content li {
	color: var(--eb-color-muted);
}

.study-topic__content li + li {
	margin-top: 6px;
}

.study-section-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 16px;
	margin: 0 0 18px;
}

.study-section-card {
	display: grid;
	align-content: start;
	gap: 8px;
	min-height: 132px;
	border: 0;
	border-radius: 6px;
	background: var(--period-color, var(--eb-color-muted));
	padding: 18px;
	color: #ffffff;
	text-decoration: none;
	transition: filter 140ms ease, transform 140ms ease;
}

.study-section-card:hover,
.study-section-card:focus {
	color: #ffffff;
	filter: brightness(1.06);
	transform: translateY(-1px);
}

.study-section-card.is-disabled {
	opacity: 0.76;
}

.study-section-card span,
.study-section-card b,
.study-section-card em {
	color: rgba(255, 255, 255, 0.82);
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	font-style: normal;
	line-height: 1.25;
}

.study-section-card b {
	display: inline-grid;
	place-items: center;
	width: 30px;
	height: 30px;
	border: 1px solid rgba(255, 255, 255, 0.45);
	border-radius: 50%;
	color: #ffffff;
	font-size: 0.76rem;
	font-weight: 600;
}

.study-section-card strong {
	color: #ffffff;
	font-size: 1.05rem;
	font-weight: 600;
	line-height: 1.22;
}

.study-section-card p {
	margin: 0;
	color: rgba(255, 255, 255, 0.9);
	font-size: 0.9rem;
	line-height: 1.45;
}

.study-section-card em {
	align-self: end;
	font-weight: 600;
	text-transform: uppercase;
}

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

@media (max-width: 640px) {
	.study-section-grid {
		grid-template-columns: 1fr;
	}
}

.overview-track {
	position: relative;
	display: grid;
	gap: 0;
	margin: 0;
	padding: 42px 0 2px;
	list-style: none;
	overflow: visible;
}

.overview-track--two {
	grid-template-columns: repeat(2, minmax(340px, 1fr));
	min-width: 720px;
}

.overview-track--many {
	grid-template-columns: repeat(12, minmax(230px, 1fr));
	min-width: 2760px;
}

.overview-track::before {
	position: absolute;
	top: 18px;
	right: 115px;
	left: 115px;
	height: 4px;
	background: linear-gradient(90deg, var(--eb-color-accent-dark), var(--eb-color-line));
	border-radius: 999px;
	content: "";
}

.overview-period {
	position: relative;
}

.overview-period a,
.overview-period span {
	position: relative;
	display: grid;
	gap: 5px;
	min-height: 156px;
	margin: 0 8px;
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	background: #fafafa;
	padding: 14px;
	color: var(--eb-color-ink);
	text-decoration: none;
}

.overview-period small {
	position: absolute;
	top: -38px;
	left: 50%;
	z-index: 1;
	display: inline-grid;
	place-items: center;
	width: 28px;
	height: 28px;
	margin-left: -14px;
	background: var(--eb-color-line);
	border: 3px solid var(--eb-color-surface);
	border-radius: 50%;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	font-style: normal;
	font-weight: 700;
}

.overview-period strong {
	line-height: 1.2;
}

.overview-period em {
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.86rem;
	font-style: normal;
	line-height: 1.35;
}

.overview-period b {
	align-self: end;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
}

.overview-period.is-active a,
.overview-period.is-active span {
	border-color: var(--eb-color-accent-dark);
	background: #fffafa;
}

.overview-period.is-active small {
	background: var(--eb-color-accent-dark);
	color: #ffffff;
}

.overview-period.is-active b {
	color: var(--eb-color-accent-dark);
}

.overview-period.is-disabled span {
	color: var(--eb-color-muted);
}

.timeline-timeframe {
	display: inline-flex;
	flex-wrap: wrap;
	gap: 6px;
	max-width: 760px;
	margin-top: 18px;
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	background: #fafafa;
	padding: 10px 14px;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.95rem;
}

.timeline-timeframe strong {
	color: var(--eb-color-ink);
}

.study-map,
.timeline-card {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
}

.timeline-kicker,
.timeline-card__heading p {
	margin: 0 0 8px;
	color: var(--eb-color-accent-dark);
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0;
	text-transform: uppercase;
}

.panorama {
	background: var(--eb-color-surface);
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	padding: clamp(20px, 4vw, 32px);
}

.panorama__heading {
	max-width: 760px;
	margin-bottom: 22px;
}

.panorama__heading h1,
.panorama__heading h2 {
	margin: 0;
	line-height: 1.15;
}

.panorama__heading p:last-child {
	margin: 8px 0 0;
	color: var(--eb-color-muted);
}

.panorama-track {
	position: relative;
	display: grid;
	grid-template-columns: repeat(10, minmax(220px, 1fr));
	gap: 0;
	min-width: 1760px;
	margin: 0;
	padding: 42px 0 2px;
	list-style: none;
	overflow: visible;
}

.panorama-track::before {
	position: absolute;
	top: 18px;
	right: 110px;
	left: 110px;
	height: 4px;
	background: linear-gradient(90deg, var(--eb-color-accent-dark), var(--eb-color-line));
	border-radius: 999px;
	content: "";
}

.panorama {
	overflow-x: auto;
}

.panorama-period {
	position: relative;
	padding-top: 0;
}

.panorama-period a,
.panorama-period span {
	position: relative;
	display: grid;
	gap: 5px;
	min-height: 156px;
	margin: 0 8px;
	border: 1px solid var(--eb-color-line);
	border-radius: 6px;
	background: #fafafa;
	padding: 14px;
	color: var(--eb-color-ink);
	text-decoration: none;
}

.panorama-period small {
	position: absolute;
	top: -38px;
	left: 50%;
	z-index: 1;
	display: inline-grid;
	place-items: center;
	width: 28px;
	height: 28px;
	margin-left: -14px;
	background: var(--eb-color-line);
	border: 3px solid var(--eb-color-surface);
	border-radius: 50%;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.78rem;
	font-style: normal;
	font-weight: 700;
}

.panorama-period strong {
	line-height: 1.2;
}

.panorama-period em {
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.86rem;
	font-style: normal;
	line-height: 1.35;
}

.panorama-period b {
	align-self: end;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
}

.panorama-period.is-active a,
.panorama-period.is-active span {
	border-color: var(--eb-color-accent-dark);
	background: #fffafa;
}

.panorama-period.is-active small {
	background: var(--eb-color-accent-dark);
	color: #ffffff;
}

.panorama-period.is-active b {
	color: var(--eb-color-accent-dark);
}

.panorama-period.is-disabled span {
	color: var(--eb-color-muted);
}

.study-map {
	padding: clamp(20px, 4vw, 32px);
	overflow-x: auto;
}

.study-map h2 {
	margin-top: 0;
}

.timeline-track {
	display: grid;
	grid-template-columns: repeat(6, minmax(180px, 1fr));
	gap: 0;
	min-width: 880px;
	margin: 0;
	padding: 16px 0 0;
	list-style: none;
}

.timeline-node {
	position: relative;
	padding-top: 24px;
}

.timeline-node::before {
	position: absolute;
	top: 10px;
	right: 0;
	left: 0;
	height: 2px;
	background: var(--eb-color-line);
	content: "";
}

.timeline-node:first-child::before {
	left: 50%;
}

.timeline-node:last-child::before {
	right: 50%;
}

.timeline-node a {
	position: relative;
	display: grid;
	gap: 6px;
	padding: 0 14px;
	color: var(--eb-color-ink);
	text-align: center;
	text-decoration: none;
}

.timeline-node__number {
	display: inline-grid;
	place-items: center;
	justify-self: center;
	width: 34px;
	height: 34px;
	margin-top: -30px;
	background: var(--eb-color-accent-dark);
	border: 3px solid var(--eb-color-surface);
	border-radius: 50%;
	color: #ffffff;
	font-family: Arial, sans-serif;
	font-size: 0.88rem;
	font-weight: 700;
}

.timeline-node__title {
	font-weight: 700;
	line-height: 1.25;
}

.timeline-node__reference {
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.88rem;
}

.timeline-details {
	display: grid;
	gap: 22px;
}

.timeline-card {
	padding: clamp(22px, 4vw, 36px);
	scroll-margin-top: 24px;
}

.timeline-card__heading {
	margin-bottom: 20px;
}

.timeline-card__heading h2 {
	margin: 0;
	line-height: 1.2;
}

.timeline-card__heading span {
	display: inline-block;
	margin-top: 8px;
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
}

.dimension-grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 14px;
}

.dimension-panel {
	border-top: 3px solid var(--eb-color-accent);
	background: #fafafa;
	padding: 16px;
}

.dimension-panel h3 {
	margin: 0 0 8px;
	font-family: Arial, sans-serif;
	font-size: 0.92rem;
}

.dimension-panel p {
	margin: 0;
	color: var(--eb-color-muted);
	font-size: 0.98rem;
}

.study-note {
	display: grid;
	gap: 18px;
	margin-top: 22px;
	border-top: 1px solid var(--eb-color-line);
	padding-top: 22px;
}

.study-note h3 {
	margin: 0 0 8px;
	font-family: Arial, sans-serif;
	font-size: 0.95rem;
}

.study-note p,
.study-note ul {
	margin-top: 0;
	margin-bottom: 0;
}

.study-note li + li {
	margin-top: 6px;
}

.study-note__focus {
	max-width: 820px;
}

.source-list {
	color: var(--eb-color-muted);
	font-family: Arial, sans-serif;
	font-size: 0.92rem;
}

.glossary-link-list {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	padding: 0;
	list-style: none;
}

.glossary-link-list li {
	margin: 0;
}

.glossary-link-list a {
	display: inline-flex;
	align-items: center;
	min-height: 34px;
	border: 1px solid var(--eb-color-line);
	border-radius: 999px;
	background: var(--eb-color-surface);
	padding: 4px 12px;
	font-family: Arial, sans-serif;
	font-size: 0.9rem;
	text-decoration: none;
}

@media (max-width: 720px) {
	body {
		font-size: 17px;
	}

	.site-header__inner {
		align-items: flex-start;
		flex-direction: column;
	}

	.dimension-grid {
		grid-template-columns: 1fr;
	}

	.foundation-grid {
		grid-template-columns: 1fr;
	}
}