/* ==========================================================================
   Menú lateral «Otras cirugías» (páginas de especialidad): en escritorio,
   una columna fija a la izquierda del contenido; en tableta y móvil, una
   fila de botones deslizable bajo la cabecera. inc/prepared.php lo dibuja.
   ========================================================================== */

.fr-rail {
	--fr-rail-top: calc(var(--fr-adminbar) + var(--fr-bar-h-compact) + 1.5rem);

	position: relative;
	z-index: 2;
	background: var(--fr-paper);
	color: var(--fr-ink);
	font-family: var(--fr-font-sans);
}

.fr-rail__eyebrow {
	margin: 0 0 0.6rem;
	color: var(--fr-mute);
	font: 600 var(--fr-text-xs) / 1.2 var(--fr-font-sans);
	letter-spacing: var(--fr-tracking-eyebrow);
	text-transform: uppercase;
}

.fr-rail__title {
	margin: 0 0 1.25rem;
	font-family: var(--fr-font-display);
	font-optical-sizing: auto;
	font-size: 1.5rem;
	font-weight: 400;
	line-height: 1.15;
	letter-spacing: -0.015em;
}

.fr-rail__list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.fr-rail__link {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	color: var(--fr-ink-soft);
	font-size: 0.9375rem;
	line-height: 1.35;
	text-decoration: none;
	transition:
		color var(--fr-dur-2) var(--fr-ease-out),
		background-color var(--fr-dur-2) var(--fr-ease-out),
		border-color var(--fr-dur-2) var(--fr-ease-out);
}

.fr-rail__icon {
	flex: none;
	width: 1rem;
	height: 1rem;
	opacity: 0;
	transform: translateX(-4px);
	transition:
		opacity var(--fr-dur-2) var(--fr-ease-out),
		transform var(--fr-dur-3) var(--fr-ease-out);
}

.fr-rail__link:hover {
	color: var(--fr-navy);
}

.fr-rail__link:hover .fr-rail__icon {
	opacity: 1;
	transform: none;
}

.fr-rail__link[aria-current="page"] {
	color: var(--fr-ink);
	font-weight: 600;
}

.fr-rail__other {
	display: grid;
	justify-items: start;
	gap: 0.6rem;
	margin-top: 2rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--fr-line-strong);
}

.fr-rail__other-link {
	font-size: 0.9375rem;
}

.fr-rail .fr-rail__cta {
	width: 100%;
	margin-top: 1.75rem;
}

/* Escritorio: columna fija a la izquierda. */

@media (min-width: 1280px) {
	.fr-withrail {
		display: grid;
		grid-template-columns: clamp(15rem, 18vw, 18.5rem) minmax(0, 1fr);
	}

	.fr-rail {
		border-right: 1px solid var(--fr-line);
	}

	.fr-rail__inner {
		position: sticky;
		top: var(--fr-rail-top);
		max-height: calc(100vh - var(--fr-rail-top) - 1rem);
		overflow-y: auto;
		padding: clamp(2.5rem, 4vw, 3.5rem) clamp(1.25rem, 2vw, 2rem) 2rem;
		scrollbar-width: thin;
	}

	.fr-rail__list {
		border-left: 1px solid var(--fr-line-strong);
	}

	.fr-rail__link {
		margin-left: -1px;
		padding: 0.7rem 0 0.7rem 1rem;
		border-left: 2px solid transparent;
	}

	.fr-rail__link:hover {
		border-left-color: var(--fr-line-strong);
	}

	.fr-rail__link[aria-current="page"] {
		border-left-color: var(--fr-navy);
	}

	.fr-rail__item--hub .fr-rail__link {
		color: var(--fr-mute);
		font-size: var(--fr-text-sm);
	}

	/* Las secciones del contenido conservan su fondo; márgenes algo menores. */
	.fr-withrail__main {
		--fr-gutter: clamp(1.75rem, 3vw, 3.5rem);

		min-width: 0;
	}
}

/* Tableta y móvil: una fila de botones bajo la cabecera de la página. */

@media (max-width: 1279.98px) {
	.fr-rail {
		border-bottom: 1px solid var(--fr-line);
	}

	.fr-rail__inner {
		display: flex;
		align-items: center;
		gap: 1rem;
		padding: 0.9rem var(--fr-gutter);
		overflow-x: auto;
		overscroll-behavior-x: contain;
		scrollbar-width: none;
	}

	.fr-rail__inner::-webkit-scrollbar {
		display: none;
	}

	.fr-rail__eyebrow,
	.fr-rail__other,
	.fr-rail .fr-rail__cta,
	.fr-rail__icon {
		display: none;
	}

	.fr-rail__title {
		flex: none;
		margin: 0;
		font-size: 1.0625rem;
		white-space: nowrap;
	}

	.fr-rail__list {
		display: flex;
		gap: 0.5rem;
	}

	.fr-rail__link {
		min-height: 2.5rem;
		padding-inline: 1rem;
		border: 1px solid var(--fr-line-strong);
		border-radius: 999px;
		background: var(--fr-white);
		font-size: var(--fr-text-sm);
		white-space: nowrap;
	}

	.fr-rail__link[aria-current="page"] {
		border-color: var(--fr-ink);
		background: var(--fr-ink);
		color: var(--fr-white);
	}
}