/**
 * Grady Knowledge Library — Styles
 * Project Lantern · Phase 1
 */

.kl-page {
	--kl-container-max: 82rem;
	--kl-reading-max: 42rem;
	background: var(--black);
	color: var(--text-primary-dark);
}

.kl-page .kl-wrap {
	width: min(100% - 2rem, var(--kl-container-max));
	margin-inline: auto;
}

/* Surfaces */
.kl-surface--black {
	background: var(--black);
	color: var(--text-primary-dark);
	--text-primary: var(--text-primary-dark);
	--text-secondary: var(--text-secondary-dark);
	--heading: var(--heading-dark);
	--eyebrow: var(--link-dark);
}

.kl-surface--charcoal {
	background: var(--charcoal);
	color: var(--text-primary-dark);
	--text-primary: var(--text-primary-dark);
	--text-secondary: var(--text-secondary-dark);
	--heading: var(--heading-dark);
	--eyebrow: var(--link-dark);
}

.kl-surface--graphite {
	background: var(--graphite);
	color: var(--text-primary-dark);
	--text-primary: var(--text-primary-dark);
	--text-secondary: var(--text-secondary-dark);
	--heading: var(--heading-dark);
	--eyebrow: var(--link-dark);
}

.kl-surface--ivory {
	background: var(--ivory);
	color: var(--text-primary-light);
	--text-primary: var(--text-primary-light);
	--text-secondary: var(--text-secondary-light);
	--heading: var(--heading-light);
	--eyebrow: var(--link-light);
	--link: var(--link-light);
}

.kl-surface--ivory .grady-body,
.kl-surface--ivory .kl-lede {
	color: var(--text-secondary-light);
}

/* Hero */
.kl-hero {
	padding: clamp(3rem, 6vw, 5.5rem) 0 clamp(2.5rem, 5vw, 4rem);
	border-bottom: 1px solid var(--divider-bronze-muted);
}

.kl-hero__grid {
	display: grid;
	gap: clamp(1.5rem, 3vw, 2.5rem);
}

.kl-hero__title {
	font-family: var(--font-display);
	font-size: clamp(2rem, 4vw + 0.5rem, 3.25rem);
	font-weight: var(--font-weight-bold);
	line-height: 1.08;
	letter-spacing: var(--letter-spacing-tight);
	text-transform: uppercase;
	color: var(--heading);
	max-width: 20ch;
	margin: 0 0 1rem;
}

.kl-lede {
	font-size: clamp(1.0625rem, 0.4vw + 1rem, 1.1875rem);
	line-height: 1.7;
	color: var(--text-secondary);
	max-width: 44rem;
	margin: 0 0 0.75rem;
}

.kl-hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1.5rem;
}

/* Search */
.kl-search-block {
	margin-top: 2rem;
	max-width: 36rem;
}

.kl-search-block__label {
	display: block;
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--eyebrow);
	margin-bottom: 0.5rem;
}

.kl-search-row {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.kl-search-input {
	flex: 1 1 14rem;
	min-height: 2.75rem;
	padding: 0.65rem 1rem;
	font-family: var(--font-body);
	font-size: 1rem;
	color: var(--black);
	background: var(--ivory);
	border: 1px solid rgba(185, 155, 104, 0.35);
	border-radius: var(--radius-sm);
}

.kl-search-input:focus {
	outline: 2px solid var(--bronze);
	outline-offset: 2px;
}

.kl-filter-row {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-top: 0.75rem;
}

.kl-filter-select {
	min-height: 2.75rem;
	padding: 0.5rem 2rem 0.5rem 0.75rem;
	font-family: var(--font-body);
	font-size: 0.9375rem;
	color: var(--black);
	background: var(--ivory);
	border: 1px solid rgba(185, 155, 104, 0.35);
	border-radius: var(--radius-sm);
}

.kl-filter-select:focus {
	outline: 2px solid var(--bronze);
	outline-offset: 2px;
}

.kl-search-status {
	margin-top: 0.75rem;
	font-size: 0.9375rem;
	color: var(--text-secondary);
	min-height: 1.25rem;
}

.kl-search-results {
	margin-top: 1rem;
	display: grid;
	gap: 0.75rem;
}

.kl-search-results[hidden] {
	display: none;
}

/* Sections */
.kl-section {
	padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.kl-section__header {
	margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
	max-width: 44rem;
}

.kl-section__title {
	font-family: var(--font-display);
	font-size: clamp(1.375rem, 2vw + 0.75rem, 2rem);
	font-weight: var(--font-weight-semibold);
	line-height: 1.15;
	letter-spacing: var(--letter-spacing-tight);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0 0 0.75rem;
}

.kl-section__intro {
	font-size: 1rem;
	line-height: 1.65;
	color: var(--text-secondary);
	margin: 0;
	max-width: 42rem;
}

/* Cards grid */
.kl-card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 18rem), 1fr));
	gap: 1rem;
}

.kl-card-grid--start {
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr));
}

/* Start here cards */
.kl-start-card {
	display: flex;
	flex-direction: column;
	padding: 1.25rem;
	background: var(--graphite);
	border: 1px solid rgba(185, 155, 104, 0.18);
	border-radius: var(--radius-md);
	text-decoration: none;
	color: inherit;
	transition:
		border-color var(--duration-normal) var(--ease-premium),
		transform var(--duration-normal) var(--ease-premium);
	min-height: 100%;
}

.kl-start-card:hover,
.kl-start-card:focus-visible {
	border-color: rgba(185, 155, 104, 0.45);
	transform: translateY(-2px);
	outline: none;
}

.kl-start-card:focus-visible {
	box-shadow: 0 0 0 2px var(--bronze);
}

.kl-start-card__title {
	font-family: var(--font-display);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0 0 0.5rem;
}

.kl-start-card__desc {
	font-size: 0.9375rem;
	line-height: 1.55;
	color: var(--text-secondary);
	margin: 0;
	flex: 1;
}

.kl-start-card__link {
	margin-top: 0.75rem;
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--bronze);
}

/* Category cards */
.kl-category-card {
	display: flex;
	flex-direction: column;
	padding: 1.5rem;
	background: var(--charcoal);
	border: 1px solid rgba(185, 155, 104, 0.2);
	border-radius: var(--radius-md);
	transition: border-color var(--duration-normal) var(--ease-premium);
}

.kl-category-card:hover,
.kl-category-card:focus-within {
	border-color: rgba(185, 155, 104, 0.42);
}

.kl-category-card__icon {
	width: 2rem;
	height: 2rem;
	color: var(--bronze);
	margin-bottom: 0.75rem;
}

.kl-category-card__title {
	font-family: var(--font-display);
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0 0 0.5rem;
	line-height: 1.25;
}

.kl-category-card__desc {
	font-size: 0.9375rem;
	line-height: 1.55;
	color: var(--text-secondary);
	margin: 0 0 1rem;
	flex: 1;
}

.kl-category-card__meta {
	font-size: 0.8125rem;
	color: var(--muted-dark);
	margin: 0 0 1rem;
}

.kl-category-card__link {
	align-self: flex-start;
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	text-decoration: none;
	color: var(--bronze);
	padding: 0.35rem 0;
	min-height: 2.75rem;
	display: inline-flex;
	align-items: center;
}

.kl-category-card__link:hover,
.kl-category-card__link:focus-visible {
	color: var(--ivory);
	outline: 2px solid var(--bronze);
	outline-offset: 2px;
}

/* Guide cards */
.kl-guide-card {
	display: flex;
	flex-direction: column;
	padding: 1.25rem;
	background: var(--graphite);
	border: 1px solid rgba(185, 155, 104, 0.16);
	border-radius: var(--radius-md);
}

.kl-guide-card--live {
	transition: border-color var(--duration-normal) var(--ease-premium);
}

.kl-guide-card--live:hover,
.kl-guide-card--live:focus-within {
	border-color: rgba(185, 155, 104, 0.4);
}

.kl-guide-card__category {
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--bronze);
	margin: 0 0 0.35rem;
}

.kl-guide-card__title {
	font-family: var(--font-display);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	margin: 0 0 0.5rem;
	line-height: 1.25;
}

.kl-guide-card__title a {
	color: var(--heading);
	text-decoration: none;
}

.kl-guide-card__title a:hover,
.kl-guide-card__title a:focus-visible {
	color: var(--bronze);
	outline: 2px solid var(--bronze);
	outline-offset: 2px;
}

.kl-guide-card__desc {
	font-size: 0.9375rem;
	line-height: 1.55;
	color: var(--text-secondary);
	margin: 0 0 0.75rem;
	flex: 1;
}

.kl-guide-card__meta {
	list-style: none;
	padding: 0;
	margin: 0 0 0.5rem;
	font-size: 0.8125rem;
	color: var(--muted-dark);
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem 1rem;
}

.kl-guide-card__reviewer {
	font-size: 0.8125rem;
	color: var(--text-secondary);
	margin: 0;
}

.kl-badge {
	display: inline-block;
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	padding: 0.25rem 0.5rem;
	border-radius: var(--radius-sm);
	background: rgba(185, 155, 104, 0.15);
	color: var(--bronze);
	border: 1px solid rgba(185, 155, 104, 0.3);
}

/* Science topics */
.kl-topic-list {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	list-style: none;
	padding: 0;
	margin: 1.5rem 0 0;
}

.kl-topic-list__item {
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	padding: 0.5rem 0.75rem;
	border: 1px solid rgba(185, 155, 104, 0.28);
	border-radius: var(--radius-sm);
	color: var(--text-secondary);
}

/* Mold species preview */
.kl-species-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(min(100%, 10rem), 1fr));
	gap: 0.75rem;
	margin-top: 1.5rem;
}

.kl-species-card {
	padding: 1rem;
	background: var(--charcoal);
	border: 1px solid rgba(185, 155, 104, 0.16);
	border-radius: var(--radius-sm);
	text-align: center;
}

.kl-species-card__name {
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0 0 0.35rem;
}

.kl-species-card__link {
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--bronze);
	text-decoration: none;
	display: block;
	margin: 0 0 0.35rem;
	transition: color var(--duration-normal) var(--ease-premium);
}

.kl-species-card__link:hover,
.kl-species-card__link:focus-visible {
	color: var(--heading);
	text-decoration: underline;
	outline: none;
}

.kl-species-card--live {
	text-align: left;
}

.kl-species-card__meta {
	font-size: var(--font-size-4xs);
	color: var(--text-secondary);
	margin: 0;
}

/* Notice blocks */
.kl-notice {
	padding: 1.25rem 1.5rem;
	border-left: 3px solid var(--bronze);
	background: rgba(185, 155, 104, 0.08);
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
	max-width: 44rem;
}

.kl-notice__title {
	font-family: var(--font-display);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0 0 0.5rem;
}

.kl-notice__body {
	font-size: 0.9375rem;
	line-height: 1.65;
	color: var(--text-secondary);
	margin: 0;
}

.kl-notice--urgent {
	border-left-color: #c45c3e;
	background: rgba(196, 92, 62, 0.1);
}

/* CTA band */
.kl-cta-band {
	padding: clamp(2.5rem, 5vw, 3.5rem) 0;
	text-align: center;
}

.kl-cta-band__title {
	font-family: var(--font-display);
	font-size: clamp(1.25rem, 2vw + 0.5rem, 1.75rem);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0 0 0.75rem;
}

.kl-cta-band__copy {
	font-size: 1rem;
	line-height: 1.65;
	color: var(--text-secondary);
	max-width: 36rem;
	margin: 0 auto 1.25rem;
}

.kl-cta-band__actions {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.75rem;
}

/* Category page */
.kl-category-hero {
	padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(2rem, 4vw, 3rem);
}

.kl-category-hero__title {
	font-family: var(--font-display);
	font-size: clamp(1.75rem, 3vw + 0.5rem, 2.75rem);
	font-weight: var(--font-weight-bold);
	line-height: 1.1;
	letter-spacing: var(--letter-spacing-tight);
	text-transform: uppercase;
	color: var(--heading);
	margin: 0.5rem 0 1rem;
	max-width: 24ch;
}

.kl-article-list {
	display: grid;
	gap: 1rem;
	margin-top: 1.5rem;
}

.kl-article-list__empty {
	font-size: 0.9375rem;
	color: var(--text-secondary);
	padding: 1rem 0;
}

/* Article template */
.kl-article-page {
	--kl-container-max: 82rem;
	--kl-reading-max: 42rem;
	background: var(--ivory);
	color: var(--text-primary-light);
}

.kl-article-page .kl-wrap {
	width: min(100% - 2rem, var(--kl-container-max));
	margin-inline: auto;
}

.kl-article-page .kl-article-hero {
	background: var(--charcoal);
	color: var(--text-primary-dark);
	padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(2rem, 4vw, 3rem);
}

.kl-article-page .kl-article-hero__title {
	font-family: var(--font-display);
	font-size: clamp(1.75rem, 3vw + 0.5rem, 2.5rem);
	font-weight: var(--font-weight-bold);
	line-height: 1.12;
	letter-spacing: var(--letter-spacing-tight);
	text-transform: uppercase;
	color: var(--heading-dark);
	margin: 0.5rem 0 1rem;
	max-width: 22ch;
}

.kl-article-page .kl-article-summary {
	font-size: 1.0625rem;
	line-height: 1.65;
	color: var(--text-secondary-dark);
	max-width: 40rem;
	margin: 0;
}

.kl-article-meta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem 1.25rem;
	list-style: none;
	padding: 0;
	margin: 1.25rem 0 0;
	font-size: 0.875rem;
	color: var(--muted-dark);
}

.kl-article-meta a {
	color: var(--bronze);
}

.kl-article-layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: 2rem;
	padding: clamp(2rem, 4vw, 3rem) 0 clamp(3rem, 6vw, 4.5rem);
}

.kl-article-layout__toc {
	position: static;
	align-self: start;
	min-width: 0;
}

@media (min-width: 64rem) {
	.kl-article-layout {
		grid-template-columns: minmax(11rem, 14rem) minmax(0, 1fr);
		gap: clamp(1.5rem, 3vw, 2.5rem);
		align-items: start;
	}

	.kl-article-layout__toc {
		position: sticky;
		top: calc(var(--grady-header-offset, 4.5rem) + 1rem);
		grid-column: 1;
		grid-row: 1;
	}

	.kl-article-body {
		grid-column: 2;
		grid-row: 1;
		min-width: 0;
	}
}

.kl-toc {
	padding: 1rem;
	background: rgba(9, 9, 9, 0.04);
	border: 1px solid rgba(185, 155, 104, 0.22);
	border-radius: var(--radius-sm);
}

.kl-toc__title {
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--black);
	margin: 0 0 0.75rem;
}

.kl-toc__list {
	list-style: none;
	padding: 0;
	margin: 0;
	font-size: 0.875rem;
	line-height: 1.5;
}

.kl-toc__list a {
	color: var(--bronze-dark);
	text-decoration: none;
	display: block;
	padding: 0.25rem 0;
}

.kl-toc__list a:hover,
.kl-toc__list a:focus-visible {
	color: var(--black);
	text-decoration: underline;
	outline: none;
}

.kl-article-body {
	font-size: 1.0625rem;
	line-height: 1.75;
	color: var(--text-primary-light);
	max-width: var(--kl-reading-max);
	min-width: 0;
}

.kl-article-body h2 {
	font-family: var(--font-display);
	font-size: clamp(1.125rem, 1.5vw + 0.75rem, 1.375rem);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--black);
	margin: 2.25rem 0 0.75rem;
	scroll-margin-top: calc(var(--grady-header-offset, 4.5rem) + 1rem);
}

.kl-article-body h3 {
	font-family: var(--font-display);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--black);
	margin: 1.5rem 0 0.5rem;
}

.kl-article-body p {
	margin: 0 0 1rem;
}

.kl-article-body ul,
.kl-article-body ol {
	margin: 0 0 1rem;
	padding-left: 1.25rem;
}

.kl-article-body li {
	margin-bottom: 0.35rem;
}

.kl-article-body a {
	color: var(--bronze-dark);
}

.kl-callout {
	padding: 1rem 1.25rem;
	margin: 1.5rem 0;
	border-radius: var(--radius-sm);
	border: 1px solid rgba(185, 155, 104, 0.35);
	background: rgba(185, 155, 104, 0.08);
}

.kl-callout--warning {
	border-color: rgba(196, 92, 62, 0.45);
	background: rgba(196, 92, 62, 0.08);
}

.kl-callout__label {
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	color: var(--black);
	margin: 0 0 0.35rem;
}

.kl-callout p:last-child {
	margin-bottom: 0;
}

.kl-key-takeaways {
	padding: 1.25rem;
	background: rgba(9, 9, 9, 0.04);
	border: 1px solid rgba(185, 155, 104, 0.22);
	border-radius: var(--radius-sm);
	margin: 2rem 0;
}

.kl-key-takeaways__title {
	font-family: var(--font-display);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	margin: 0 0 0.75rem;
}

.kl-steps {
	counter-reset: kl-step;
	list-style: none;
	padding: 0;
	margin: 1rem 0;
}

.kl-steps li {
	counter-increment: kl-step;
	position: relative;
	padding-left: 2.5rem;
	margin-bottom: 0.75rem;
}

.kl-steps li::before {
	content: counter(kl-step);
	position: absolute;
	left: 0;
	top: 0.1rem;
	width: 1.75rem;
	height: 1.75rem;
	display: flex;
	align-items: center;
	justify-content: center;
	font-family: var(--font-display);
	font-size: var(--font-size-3xs);
	font-weight: var(--font-weight-semibold);
	color: var(--ivory);
	background: var(--bronze-dark);
	border-radius: 50%;
}

.kl-related {
	margin-top: 2.5rem;
	padding-top: 2rem;
	border-top: 1px solid rgba(9, 9, 9, 0.12);
}

.kl-related__title {
	font-family: var(--font-display);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	margin: 0 0 1rem;
}

.kl-related__links {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem 1rem;
	list-style: none;
	padding: 0;
	margin: 0;
}

.kl-related__links a {
	color: var(--bronze-dark);
	font-weight: 500;
}

.kl-attribution {
	font-size: 0.875rem;
	line-height: 1.6;
	color: var(--text-secondary-light);
	margin-top: 2rem;
	padding-top: 1.5rem;
	border-top: 1px solid rgba(9, 9, 9, 0.1);
}

.kl-attribution a {
	color: var(--bronze-dark);
}

/* Editorial standards */
.kl-standards-body {
	max-width: 44rem;
	font-size: 1.0625rem;
	line-height: 1.75;
}

.kl-standards-body h2 {
	font-family: var(--font-display);
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-semibold);
	letter-spacing: var(--letter-spacing-wide);
	text-transform: uppercase;
	margin: 2rem 0 0.75rem;
}

.kl-standards-body p,
.kl-standards-body ul {
	margin: 0 0 1rem;
}

/* Breadcrumbs on dark */
.kl-page .grady-breadcrumb a {
	color: var(--bronze);
}

.kl-page .grady-breadcrumb {
	margin-bottom: 0.75rem;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
	.kl-start-card,
	.kl-category-card,
	.kl-guide-card--live {
		transition: none;
	}

	.kl-start-card:hover {
		transform: none;
	}
}

/* Responsive overflow guard */
.kl-page img {
	max-width: 100%;
	height: auto;
}

@media (max-width: 23.4375rem) {
	.kl-hero__actions .grady-btn {
		width: 100%;
		justify-content: center;
	}
}