/* Knowledge Center styles are intentionally namespaced away from the Dynamic Hero. */

.knowledge-main {
	padding-block: clamp(2.5rem, 6vw, 5rem);
}

.knowledge-hero,
.knowledge-archive-header,
.knowledge-search-header {
	background: linear-gradient(135deg, var(--color-soft) 0%, var(--color-accent-soft) 100%);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-large);
}

.knowledge-hero {
	display: grid;
	grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
	align-items: end;
	gap: clamp(2rem, 6vw, 5rem);
	padding: clamp(2rem, 5vw, 4rem);
}

.knowledge-archive-header,
.knowledge-search-header {
	padding: clamp(1.75rem, 4vw, 3rem);
	margin-bottom: 2rem;
}

.knowledge-hero h1,
.knowledge-section h2,
.knowledge-archive-header h1,
.knowledge-search-header h1,
.knowledge-article h1,
.knowledge-article h2 {
	margin: 0;
	color: var(--color-ink);
	line-height: 1.12;
	letter-spacing: -0.025em;
}

.knowledge-hero h1,
.knowledge-article h1 {
	font-size: clamp(2.1rem, 5vw, 4rem);
}

.knowledge-archive-header h1,
.knowledge-search-header h1 {
	font-size: clamp(1.9rem, 4vw, 3.25rem);
}

.knowledge-hero__intro,
.knowledge-archive-header__description {
	max-width: 46rem;
	margin-top: 1.25rem;
	font-size: 1.05rem;
}

.knowledge-hero__intro > :last-child,
.knowledge-archive-header__description > :last-child {
	margin-bottom: 0;
}

.knowledge-search {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	gap: 0.65rem;
	padding: 0.75rem;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-medium);
	box-shadow: var(--shadow-soft);
}

.knowledge-search--results {
	max-width: 48rem;
	margin-bottom: 2rem;
}

.knowledge-search input[type="search"] {
	min-width: 0;
	min-height: 3.25rem;
	padding: 0.65rem 0.85rem;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-small);
	color: var(--color-text);
	font: inherit;
}

.knowledge-search button {
	min-height: 3.25rem;
	padding-inline: 1.25rem;
	background: var(--color-primary);
	border: 0;
	border-radius: var(--radius-small);
	color: var(--color-surface);
	cursor: pointer;
	font: inherit;
	font-weight: 750;
}

.knowledge-search button:hover {
	background: var(--color-primary-dark);
}

.knowledge-categories {
	margin-top: 1.5rem;
}

.knowledge-categories ul {
	display: grid;
	grid-template-columns: repeat(5, minmax(0, 1fr));
	gap: 0.75rem;
	padding: 0;
	margin: 0;
	list-style: none;
}

.knowledge-categories a {
	display: grid;
	min-height: 6rem;
	align-content: space-between;
	padding: 1rem;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-medium);
	color: var(--color-ink);
	font-weight: 800;
	text-decoration: none;
}

.knowledge-categories a:hover {
	border-color: var(--color-primary);
	box-shadow: 0 0.8rem 2rem rgba(23, 35, 52, 0.08);
}

.knowledge-categories small {
	color: var(--color-muted);
	font-size: 0.78rem;
	font-weight: 600;
}

.knowledge-section {
	padding-top: clamp(3rem, 6vw, 5rem);
}

.knowledge-section__heading {
	display: flex;
	align-items: end;
	justify-content: space-between;
	gap: 1.5rem;
	margin-bottom: 1.5rem;
}

.knowledge-section h2 {
	font-size: clamp(1.6rem, 3vw, 2.5rem);
}

.knowledge-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 1.25rem;
}

.knowledge-grid--archive {
	margin-top: 1.5rem;
}

.knowledge-grid--featured .knowledge-card:first-child {
	grid-column: span 2;
}

.knowledge-card {
	overflow: hidden;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-medium);
}

.knowledge-card__link {
	display: flex;
	height: 100%;
	flex-direction: column;
	color: inherit;
	text-decoration: none;
}

.knowledge-card__link:hover {
	color: inherit;
}

.knowledge-card__media {
	margin: 0;
	overflow: hidden;
	aspect-ratio: 16 / 9;
	background: var(--color-soft);
	border-bottom: 1px solid var(--color-line);
}

.knowledge-card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 180ms ease;
}

.knowledge-card__link:hover .knowledge-card__media img {
	transform: scale(1.02);
}

.knowledge-card__body {
	display: flex;
	flex: 1;
	flex-direction: column;
	padding: 1.25rem;
}

.knowledge-card__category {
	margin: 0 0 0.55rem;
	color: var(--color-primary);
	font-size: 0.76rem;
	font-weight: 850;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.knowledge-card h3 {
	margin: 0;
	color: var(--color-ink);
	font-size: 1.18rem;
	line-height: 1.4;
}

.knowledge-card__excerpt {
	margin-top: 0.75rem;
	color: var(--color-text);
	font-size: 0.94rem;
}

.knowledge-card__excerpt p {
	margin: 0;
}

.knowledge-card__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem 0.85rem;
	margin: auto 0 0;
	padding-top: 1rem;
	color: var(--color-muted);
	font-size: 0.76rem;
}

.knowledge-breadcrumbs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	margin-bottom: 1.25rem;
	color: var(--color-muted);
	font-size: 0.82rem;
}

.knowledge-breadcrumbs a {
	font-weight: 700;
	text-decoration: none;
}

.knowledge-article {
	max-width: 68rem;
	margin-inline: auto;
}

.knowledge-article__header {
	max-width: 55rem;
	padding-block: 1rem 2rem;
}

.knowledge-article__lead {
	max-width: 48rem;
	margin: 1.25rem 0 0;
	font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.knowledge-article__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem 1rem;
	margin-top: 1.25rem;
	color: var(--color-muted);
	font-size: 0.82rem;
}

.knowledge-article__featured {
	margin: 0 0 2rem;
	overflow: hidden;
	max-height: 38rem;
	border-radius: var(--radius-large);
}

.knowledge-article__featured img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.knowledge-article__layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(14rem, 18rem);
	align-items: start;
	gap: clamp(2rem, 5vw, 4rem);
}

.knowledge-article__content {
	min-width: 0;
	font-size: 1.02rem;
}

.knowledge-article__content > :first-child {
	margin-top: 0;
}

.knowledge-article__content h2,
.knowledge-article__content h3 {
	margin-top: 2rem;
	color: var(--color-ink);
}

.knowledge-article__content a {
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

.knowledge-article__content table {
	display: block;
	max-width: 100%;
	overflow-x: auto;
	border-collapse: collapse;
}

.knowledge-article__content th,
.knowledge-article__content td {
	padding: 0.65rem;
	border: 1px solid var(--color-line);
	text-align: left;
}

.knowledge-article__aside {
	position: sticky;
	top: 1rem;
	display: grid;
	gap: 1rem;
}

.knowledge-factbox,
.knowledge-references,
.knowledge-disclaimer {
	padding: 1.25rem;
	background: var(--color-soft);
	border: 1px solid var(--color-line);
	border-radius: var(--radius-medium);
}

.knowledge-factbox h2,
.knowledge-references h2,
.knowledge-disclaimer h2 {
	font-size: 1rem;
	letter-spacing: 0;
}

.knowledge-factbox p:last-child,
.knowledge-disclaimer p:last-child {
	margin-bottom: 0;
}

.knowledge-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	margin-top: 0.75rem;
}

.knowledge-tags a {
	display: inline-flex;
	padding: 0.35rem 0.65rem;
	background: var(--color-surface);
	border: 1px solid var(--color-line);
	border-radius: 999px;
	font-size: 0.78rem;
	text-decoration: none;
}

.knowledge-references,
.knowledge-disclaimer {
	max-width: 50rem;
	margin-top: 2rem;
}

.knowledge-references ol {
	margin-bottom: 0;
	padding-left: 1.25rem;
}

.knowledge-references li + li {
	margin-top: 0.55rem;
}

.knowledge-empty {
	padding: 1.5rem;
	background: var(--color-soft);
	border: 1px dashed var(--color-line);
	border-radius: var(--radius-medium);
}

.knowledge-empty > :first-child {
	margin-top: 0;
}

.knowledge-empty > :last-child {
	margin-bottom: 0;
}

.knowledge-pagination,
.navigation.pagination {
	margin-top: 2rem;
}

.knowledge-pagination .page-numbers,
.navigation.pagination .nav-links {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	padding: 0;
	margin: 0;
	list-style: none;
}

.knowledge-pagination a,
.knowledge-pagination span,
.navigation.pagination .page-numbers {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 2.75rem;
	min-height: 2.75rem;
	padding-inline: 0.8rem;
	border: 1px solid var(--color-line);
	border-radius: var(--radius-small);
	text-decoration: none;
}

.knowledge-pagination .current,
.navigation.pagination .current {
	background: var(--color-primary);
	border-color: var(--color-primary);
	color: var(--color-surface);
}

@media (max-width: 64rem) {
	.knowledge-categories ul {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.knowledge-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 52rem) {
	.knowledge-hero,
	.knowledge-article__layout {
		grid-template-columns: 1fr;
	}

	.knowledge-grid--featured .knowledge-card:first-child {
		grid-column: auto;
	}

	.knowledge-article__aside {
		position: static;
	}
}

@media (max-width: 38rem) {
	.knowledge-main {
		width: min(100% - 1.25rem, var(--site-width));
	}

	.knowledge-hero {
		padding: 1.25rem;
	}

	.knowledge-search {
		grid-template-columns: 1fr;
	}

	.knowledge-categories ul,
	.knowledge-grid {
		grid-template-columns: 1fr;
	}
}

@media (prefers-reduced-motion: reduce) {
	.knowledge-card__media img {
		transition: none;
	}
}