/**
 * MedEncyclo Post Navigation — category breadcrumb + Previous/Next cards.
 *
 * Scoped entirely to the plugin's classes. Both components render inside the
 * article content container, so they inherit the article's own width and never
 * use viewport units, negative margins, or sidebar assumptions. All dimensions
 * are rem-based and fluid so nothing overflows on any screen width.
 */

.medencyclo-pn-crumbs,
.medencyclo-pn-crumbs *,
.medencyclo-pn-crumbs *::before,
.medencyclo-pn-crumbs *::after,
.medencyclo-pn-nav,
.medencyclo-pn-nav *,
.medencyclo-pn-nav *::before,
.medencyclo-pn-nav *::after {
	box-sizing: border-box;
}

.medencyclo-pn-crumbs,
.medencyclo-pn-nav {
	--pn-accent: var(--me-primary, var(--primary-color, var(--wp--preset--color--primary, #0F4C81)));
	--pn-secondary: var(--me-secondary, var(--secondary-color, #00A6A6));
	--pn-card-bg: var(--me-card, var(--background-color, var(--wp--preset--color--background, #ffffff)));
	--pn-bg: var(--me-bg, var(--background-color, #F8FCFF));
	--pn-border: var(--me-border, var(--border-color, #DCEAF5));
	--pn-text: var(--me-text, var(--text-color, #1E293B));
	--pn-muted: var(--me-muted, #52667A);
	--pn-hover: var(--me-hover, #E6F7FF);
	--pn-radius: var(--me-radius-sm, 12px);
	--pn-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

	width: 100%;
	max-width: 100%;
	min-width: 0;
	color: var(--pn-text);
}

/* ===== Breadcrumb / categories ===== */
.medencyclo-pn-crumbs {
	display: flex;
	align-items: flex-start;
	flex-wrap: wrap;
	gap: 0.35rem 0.6rem;
	margin: 0 0 1.5rem;
	padding: 0.7rem 0.9rem;
	background: var(--pn-bg);
	border: 1px solid var(--pn-border);
	border-radius: var(--pn-radius);
}

.medencyclo-pn-crumbs__icon {
	display: inline-flex;
	align-items: center;
	flex: 0 0 auto;
	line-height: 1;
	color: var(--pn-accent);
	margin-top: 0.05rem;
}

.medencyclo-pn-crumbs__list {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 0.35rem 0;
	margin: 0;
	padding: 0;
	list-style: none;
	min-width: 0;
}

.medencyclo-pn-crumbs__item {
	display: inline-flex;
	align-items: center;
	min-width: 0;
	margin: 0;
	font-size: 0.86rem;
	line-height: 1.4;
}

.medencyclo-pn-crumbs__sep {
	display: inline-block;
	margin: 0 0.5rem;
	color: var(--pn-muted);
	opacity: 0.7;
	line-height: 1;
}

.medencyclo-pn-crumbs__link {
	color: var(--pn-accent);
	text-decoration: none;
	font-weight: 500;
	transition: color var(--pn-transition);
}

.medencyclo-pn-crumbs__link:hover,
.medencyclo-pn-crumbs__link:focus-visible {
	color: var(--pn-secondary);
	text-decoration: underline;
}

.medencyclo-pn-crumbs__link:focus-visible,
.medencyclo-pn-crumbs__current:focus-visible {
	outline: 2px solid var(--pn-accent);
	outline-offset: 2px;
	border-radius: 4px;
}

.medencyclo-pn-crumbs__current {
	color: var(--pn-text);
	font-weight: 600;
	overflow-wrap: anywhere;
	word-break: break-word;
}

/* ===== Previous / Next navigation cards ===== */
.medencyclo-pn-nav {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem;
	margin: 2.75rem 0 0;
	padding: 1.5rem 0 0;
	border-top: 1px solid var(--pn-border);
}

/* One card fills the full row when its sibling is missing. */
.medencyclo-pn-nav .medencyclo-pn-nav__card:only-child {
	grid-column: 1 / -1;
}

.medencyclo-pn-nav__card {
	display: flex;
	align-items: flex-start;
	gap: 0.9rem;
	min-width: 0;
	padding: 1.15rem 1.25rem;
	background: var(--pn-card-bg);
	border: 1px solid var(--pn-border);
	border-radius: var(--pn-radius);
	text-decoration: none;
	transition: border-color var(--pn-transition), box-shadow var(--pn-transition), transform var(--pn-transition);
}

.medencyclo-pn-nav__card:hover,
.medencyclo-pn-nav__card:focus-visible {
	border-color: var(--pn-accent);
	box-shadow: 0 10px 28px rgba(15, 76, 129, 0.1);
	transform: translateY(-2px);
}

.medencyclo-pn-nav__card:focus-visible {
	outline: 2px solid var(--pn-accent);
	outline-offset: 2px;
}

.medencyclo-pn-nav__card--next {
	text-align: right;
}

.medencyclo-pn-nav__thumb {
	flex: 0 0 auto;
	align-self: center;
	overflow: hidden;
	width: 72px;
	height: 72px;
	border-radius: 8px;
	background: var(--pn-bg);
	border: 1px solid var(--pn-border);
}

.medencyclo-pn-nav__thumb--right {
	order: 2;
}

.medencyclo-pn-nav__img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.medencyclo-pn-nav__body {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
	min-width: 0;
	flex: 1 1 auto;
}

.medencyclo-pn-nav__card--next .medencyclo-pn-nav__body {
	align-items: flex-end;
}

.medencyclo-pn-nav__label {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	line-height: 1;
	color: var(--pn-accent);
}

.medencyclo-pn-nav__card--next .medencyclo-pn-nav__label {
	flex-direction: row-reverse;
}

.medencyclo-pn-nav__arrow {
	display: inline-block;
	transition: transform var(--pn-transition);
}

.medencyclo-pn-nav__card--prev:hover .medencyclo-pn-nav__arrow {
	transform: translateX(-3px);
}

.medencyclo-pn-nav__card--next:hover .medencyclo-pn-nav__arrow {
	transform: translateX(3px);
}

.medencyclo-pn-nav__title {
	font-size: 1rem;
	font-weight: 600;
	line-height: 1.4;
	color: var(--pn-text);
	overflow-wrap: anywhere;
	word-break: break-word;
	transition: color var(--pn-transition);
}

.medencyclo-pn-nav__card:hover .medencyclo-pn-nav__title,
.medencyclo-pn-nav__card:focus-visible .medencyclo-pn-nav__title {
	color: var(--pn-accent);
}

/* ===== Responsive ===== */
/* Tablet: keep two cards side by side. */
@media (max-width: 782px) {
	.medencyclo-pn-crumbs {
		margin-bottom: 1.25rem;
	}
	.medencyclo-pn-nav {
		gap: 0.9rem;
	}
}

/* Mobile: stack the cards vertically. */
@media (max-width: 600px) {
	.medencyclo-pn-crumbs {
		padding: 0.65rem 0.75rem;
	}
	.medencyclo-pn-nav {
		grid-template-columns: repeat(1, minmax(0, 1fr));
		gap: 0.85rem;
		margin-top: 2.25rem;
		padding-top: 1.25rem;
	}
	.medencyclo-pn-nav__card--next {
		text-align: left;
	}
	.medencyclo-pn-nav__card--next .medencyclo-pn-nav__body {
		align-items: flex-start;
	}
	.medencyclo-pn-nav__card--next .medencyclo-pn-nav__label {
		flex-direction: row;
	}
	.medencyclo-pn-nav__card--next .medencyclo-pn-nav__thumb--right {
		order: 0;
	}
}