/* ── Cabecera ── */
.cabecera {
	position: sticky;
	top: 0;
	z-index: 100;
	background-color: color-mix(in srgb, var(--color-fondo) 85%, transparent);
	backdrop-filter: blur(12px) saturate(1.2);
	-webkit-backdrop-filter: blur(12px) saturate(1.2);
	border-bottom: 1px solid var(--color-borde-sutil);
	transition: background-color var(--transition-normal),
		border-color var(--transition-normal);
}

.cabecera__inner {
	height: var(--altura-cabecera);
}

.cabecera__logo {
	font-family: var(--font-mono);
	font-size: var(--fs1);
	font-weight: 700;
	text-decoration: none;
	letter-spacing: -0.02em;
	transition: opacity var(--transition-fast);
}

.cabecera__logo:hover {
	opacity: 0.8;
}

.cabecera__prompt {
	color: var(--color-acento);
}

.cabecera__cursor {
	display: inline-block;
	width: 0.5em;
	height: 1em;
	background-color: var(--color-acento);
	vertical-align: text-bottom;
	margin-left: 0.1em;
	animation: cursorBlink 1s step-end infinite;
	opacity: 0.8;
}

@keyframes cursorBlink {
	0%, 100% { opacity: 0.8; }
	50%      { opacity: 0; }
}

/* ── Navegación desktop ── */
.nav {
	display: flex;
	gap: 0.15rem;
	align-items: center;
}

.nav__link {
	position: relative;
	text-decoration: none;
	font-size: var(--fs-1);
	padding: 0.4em 0.7em;
	border-radius: var(--radius-s);
	transition: color var(--transition-fast),
		background-color var(--transition-fast);
}

.nav__link:hover {
	color: var(--color-acento);
	background-color: var(--color-acento-suave);
}

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

.nav__link[aria-current="page"]::after {
	content: "";
	position: absolute;
	bottom: 2px;
	left: 0.7em;
	right: 0.7em;
	height: 2px;
	background-color: var(--color-acento);
	border-radius: 1px;
}

/* ── Hamburguesa (solo móvil) ── */
.nav-hamburger {
	display: none;
	background: none;
	border: none;
	cursor: pointer;
	padding: 0.5rem;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 5px;
	width: 2.5rem;
	height: 2.5rem;
	z-index: 150;
}

.nav-hamburger__bar {
	display: block;
	width: 22px;
	height: 2px;
	background-color: var(--color-texto);
	border-radius: 1px;
	transition: transform var(--transition-fast),
		opacity var(--transition-fast);
}

.nav-hamburger.is-open .nav-hamburger__bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.is-open .nav-hamburger__bar:nth-child(2) {
	opacity: 0;
}
.nav-hamburger.is-open .nav-hamburger__bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* ── Overlay ── */
.nav-overlay {
	display: none;
	position: fixed;
	inset: 0;
	z-index: 140;
	background-color: rgba(0, 0, 0, 0.5);
	opacity: 0;
	transition: opacity var(--transition-normal);
}

.nav-overlay.is-open {
	display: block;
	opacity: 1;
}

/* ── Panel deslizante ── */
.nav-panel {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	width: min(80vw, 320px);
	z-index: 150;
	background-color: var(--color-fondo);
	border-left: 1px solid var(--color-borde-sutil);
	transform: translateX(100%);
	transition: transform var(--transition-normal);
	display: flex;
	flex-direction: column;
	overflow-y: auto;
}

.nav-panel.is-open {
	transform: translateX(0);
}

.nav-panel__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 1.25rem;
	border-bottom: 1px solid var(--color-borde-sutil);
}

.nav-panel__logo {
	font-family: var(--font-mono);
	font-size: var(--fs0);
	font-weight: 700;
	letter-spacing: -0.02em;
}

.nav-panel__close {
	background: none;
	border: none;
	cursor: pointer;
	font-size: var(--fs3);
	color: var(--color-texto-alt);
	line-height: 1;
	padding: 0.2em;
	transition: color var(--transition-fast);
}

.nav-panel__close:hover {
	color: var(--color-acento);
}

.nav-panel__links {
	display: flex;
	flex-direction: column;
	padding: 1rem 0;
}

.nav-panel__link {
	text-decoration: none;
	font-size: var(--fs1);
	padding: 0.75rem 1.25rem;
	transition: color var(--transition-fast),
		background-color var(--transition-fast);
}

.nav-panel__link:hover {
	color: var(--color-acento);
	background-color: var(--color-acento-suave);
}

.nav-panel__link[aria-current="page"] {
	color: var(--color-acento);
	font-weight: 600;
	border-left: 3px solid var(--color-acento);
}

@media screen and (max-width: 61.25rem) {
	.nav {
		display: none;
	}
	.nav-hamburger {
		display: flex;
	}
}

/* ── Toggle de tema (fixed top-right) ── */
.theme-toggle {
	position: fixed;
	top: calc((var(--altura-cabecera) - 2em) / 2);
	right: 0.75rem;
	z-index: 200;
	background: color-mix(in srgb, var(--color-fondo) 80%, transparent);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	border: 1px solid var(--color-borde-sutil);
	border-radius: var(--radius-s);
	cursor: pointer;
	width: 2em;
	height: 2em;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: var(--fs0);
	color: var(--color-texto-alt);
	line-height: 1;
	transition: color var(--transition-fast),
		border-color var(--transition-fast),
		background-color var(--transition-fast),
		transform var(--transition-fast);
}

.theme-toggle:hover {
	color: var(--color-acento);
	border-color: var(--color-acento);
	background-color: var(--color-acento-suave);
	transform: scale(1.08);
}

/* En móvil/tablet, ocultar el toggle fijo (se usa el del panel) */
@media screen and (max-width: 61.25rem) {
	.theme-toggle:not(.theme-toggle--panel) {
		display: none;
	}
}

/* Toggle dentro del panel móvil */
.theme-toggle--panel {
	position: static;
	background: none;
	backdrop-filter: none;
	-webkit-backdrop-filter: none;
	border: 1px solid var(--color-borde-sutil);
	z-index: auto;
	width: 2.5rem;
	height: 2.5rem;
	font-size: var(--fs1);
}

.nav-panel__footer {
	display: flex;
	align-items: center;
	gap: var(--space-s);
	padding: var(--space-m) 1.25rem;
	margin-top: auto;
	border-top: 1px solid var(--color-borde-sutil);
}

.nav-panel__theme-label {
	font-size: var(--fs-1);
	color: var(--color-texto-alt);
}

/* ── Contenido principal ── */
.cuerpo {
	padding-top: var(--space-xl);
	padding-bottom: var(--space-2xl);
}

/* ── Tipografía de contenido (prosa) ── */
.prosa h1 {
	font-size: var(--fs5);
	font-weight: 800;
	margin-bottom: var(--space-m);
	letter-spacing: -0.03em;
}

.prosa h2 {
	font-size: var(--fs3);
	font-weight: 700;
	margin-top: var(--space-xl);
	margin-bottom: var(--space-s);
	letter-spacing: -0.02em;
}

.prosa h3 {
	font-size: var(--fs2);
	font-weight: 600;
	margin-top: var(--space-l);
	margin-bottom: var(--space-xs);
}

.prosa p {
	margin-bottom: var(--space-m);
	color: var(--color-texto);
}

/* Links animados en prosa */
.prosa a {
	color: var(--color-link);
	text-decoration: none;
	background-image: linear-gradient(var(--color-acento), var(--color-acento));
	background-position: 0 100%;
	background-repeat: no-repeat;
	background-size: 100% 1px;
	transition: color var(--transition-fast),
		background-size var(--transition-fast);
}

.prosa a:hover {
	color: var(--color-link-hover);
	background-size: 100% 2px;
}

.prosa ul,
.prosa ol {
	margin-bottom: var(--space-m);
	padding-left: 1.5em;
}

.prosa ul {
	list-style: none;
}

.prosa ul li {
	position: relative;
	padding-left: 0.2em;
}

.prosa ul li::before {
	content: "▸";
	position: absolute;
	left: -1.2em;
	color: var(--color-acento);
	font-size: 0.85em;
}

.prosa ol {
	list-style: decimal;
}

.prosa li {
	margin-bottom: var(--space-xs);
}

.prosa blockquote {
	border-left: 3px solid var(--color-acento);
	padding: var(--space-m);
	padding-right: var(--space-m);
	color: var(--color-texto-alt);
	font-style: italic;
	margin-bottom: var(--space-m);
	background-color: var(--color-fondo-alt);
	border-radius: 0 var(--radius-m) var(--radius-m) 0;
}

.prosa hr {
	border: none;
	border-top: 1px solid var(--color-borde);
	margin: var(--space-xl) 0;
}

.prosa strong {
	font-weight: 700;
	color: var(--color-texto);
}

/* ── Tarjeta de post ── */
.postcard {
	position: relative;
	padding: var(--space-m);
	margin-bottom: var(--space-s);
	background-color: var(--color-fondo-alt);
	border: 1px solid var(--color-borde-sutil);
	border-radius: var(--radius-m);
	transition: border-color var(--transition-fast),
		background-color var(--transition-fast),
		box-shadow var(--transition-fast),
		transform var(--transition-fast);
}

.postcard:hover {
	border-color: var(--color-acento);
	background-color: var(--color-fondo-alt);
	box-shadow: 0 4px 20px var(--color-sombra),
		0 0 0 1px var(--color-acento-suave);
	transform: translateY(-2px);
}

.postcard__link {
	text-decoration: none;
	display: block;
}

.postcard__link:hover .postcard__title {
	color: var(--color-acento);
}

.postcard__title {
	font-size: var(--fs2);
	font-weight: 700;
	letter-spacing: -0.02em;
	margin-bottom: 0.25em;
	transition: color var(--transition-fast);
}

.postcard__meta {
	font-size: var(--fs-1);
	color: var(--color-texto-alt);
	margin-bottom: 0.5em;
	font-family: var(--font-mono);
}

.postcard__description {
	color: var(--color-texto-alt);
	line-height: 1.5;
}

.postcard__tags {
	display: flex;
	gap: 0.5rem;
	flex-wrap: wrap;
	margin-top: 0.75em;
}

.tag:not(pre .tag) {
	font-family: var(--font-mono);
	font-size: var(--fs-2);
	color: var(--color-texto-alt);
	background-color: transparent;
	padding: 0.2em 0.6em;
	border-radius: var(--radius-s);
	text-decoration: none;
	border: 1px solid var(--color-borde);
	border-left: 2px solid var(--color-acento);
	transition: color var(--transition-fast),
		background-color var(--transition-fast),
		border-color var(--transition-fast);
}

.tag:hover {
	color: var(--color-acento);
	background-color: var(--color-acento-suave);
	border-color: var(--color-acento);
}

/* Evitar que .prosa a herede estilos de enlace en los tags */
.prosa .tag:not(pre .tag) {
	background-image: none;
	color: var(--color-texto-alt);
}
.prosa .tag:hover {
	color: var(--color-acento);
}

/* ── Tarjeta de post destacado ── */
.postcard-destacado {
	padding: var(--space-l);
	background-color: var(--color-fondo-alt);
	border: 1px solid var(--color-borde-sutil);
	border-left: 3px solid var(--color-acento);
	border-radius: var(--radius-m);
	margin-bottom: var(--space-l);
	transition: border-color var(--transition-fast),
		background-color var(--transition-fast),
		box-shadow var(--transition-fast),
		transform var(--transition-fast);
}

.postcard-destacado:hover {
	border-color: var(--color-acento);
	background-color: var(--color-fondo-alt);
	box-shadow: 0 6px 30px var(--color-sombra),
		0 0 0 1px var(--color-acento-suave);
	transform: translateY(-2px);
}

.postcard-destacado__link {
	text-decoration: none;
	display: block;
}

.postcard-destacado__link:hover .postcard-destacado__title {
	color: var(--color-acento);
}

.postcard-destacado__label {
	font-family: var(--font-mono);
	font-size: var(--fs-2);
	color: var(--color-acento);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	margin-bottom: var(--space-xs);
}

.postcard-destacado__title {
	font-size: var(--fs4);
	font-weight: 800;
	letter-spacing: -0.03em;
	margin-bottom: 0.25em;
	transition: color var(--transition-fast);
}

.postcard-destacado__meta {
	font-size: var(--fs-1);
	color: var(--color-texto-alt);
	margin-bottom: 0.75em;
	font-family: var(--font-mono);
}

.postcard-destacado__description {
	color: var(--color-texto-alt);
	line-height: 1.6;
	max-width: 65ch;
}

/* ── Grid de posts ── */
.posts-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: var(--space-m);
}

.posts-grid .postcard {
	margin-bottom: 0;
}

@media screen and (max-width: 45rem) {
	.posts-grid {
		grid-template-columns: 1fr;
	}
}

/* ── Timeline ── */
.timeline {
	position: relative;
	padding-left: var(--space-l);
}

.timeline::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0;
	bottom: 0;
	width: 2px;
	background: linear-gradient(
		to bottom,
		var(--color-acento),
		var(--color-borde) 30%,
		var(--color-borde) 70%,
		var(--color-acento)
	);
	transition: background var(--transition-normal);
}

.timeline__item {
	position: relative;
	padding-bottom: var(--space-l);
	padding-left: var(--space-s);
}

.timeline__item:last-child {
	padding-bottom: 0;
}

.timeline__item::before {
	content: "";
	position: absolute;
	left: calc(-1 * var(--space-l) - 5px);
	top: 0.35em;
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background-color: var(--color-acento);
	border: 3px solid var(--color-fondo);
	box-shadow: 0 0 0 2px var(--color-acento-suave),
		0 0 12px var(--color-sombra-acento);
	transition: border-color var(--transition-normal),
		box-shadow var(--transition-fast);
}

.timeline__item:hover::before {
	box-shadow: 0 0 0 3px var(--color-acento-suave),
		0 0 20px var(--color-sombra-acento);
}

.timeline__year {
	font-family: var(--font-mono);
	font-size: var(--fs-1);
	font-weight: 700;
	color: var(--color-acento);
	margin-bottom: 0.15em;
}

.timeline__title {
	font-size: var(--fs1);
	font-weight: 700;
	margin-bottom: 0.25em;
}

.timeline__description {
	color: var(--color-texto-alt);
	line-height: 1.5;
}

.timeline__link {
	display: inline-block;
	margin-top: 0.5em;
	font-family: var(--font-mono);
	font-size: var(--fs-1);
	color: var(--color-acento);
	text-decoration: none;
	background-image: linear-gradient(var(--color-acento), var(--color-acento));
	background-position: 0 100%;
	background-repeat: no-repeat;
	background-size: 100% 1px;
	transition: color var(--transition-fast),
		background-size var(--transition-fast);
}

.timeline__link:hover {
	color: var(--color-acento-hover);
	background-size: 100% 2px;
}

/* ── Herramientas (stack) ── */
.herramientas-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: var(--space-m);
}

.herramienta {
	position: relative;
	padding: var(--space-m);
	border: 1px solid var(--color-borde-sutil);
	border-radius: var(--radius-l);
	background-color: var(--color-fondo);
	overflow: hidden;
	transition: border-color var(--transition-fast),
		transform var(--transition-fast),
		box-shadow var(--transition-fast);
}

/* Borde gradiente en hover */
.herramienta::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: linear-gradient(90deg, var(--color-acento), var(--color-acento-hover), transparent);
	opacity: 0;
	transition: opacity var(--transition-fast);
}

.herramienta:hover {
	border-color: var(--color-borde);
	transform: translateY(-3px);
	box-shadow: 0 8px 30px var(--color-sombra),
		0 0 0 1px var(--color-acento-suave);
}

.herramienta:hover::before {
	opacity: 1;
}

.herramienta__nombre {
	font-weight: 700;
	font-size: var(--fs1);
	margin-bottom: 0.25em;
}

.herramienta__nombre a {
	color: inherit;
	text-decoration: none;
	transition: color var(--transition-fast);
}

.herramienta__nombre a:hover {
	color: var(--color-acento);
}

.herramienta__categoria {
	font-family: var(--font-mono);
	font-size: var(--fs-2);
	color: var(--color-acento);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin-bottom: 0.75em;
}

.herramienta__descripcion {
	color: var(--color-texto-alt);
	font-size: var(--fs-1);
	line-height: 1.55;
}

.herramienta__desde {
	font-family: var(--font-mono);
	font-size: var(--fs-2);
	color: var(--color-texto-alt);
	margin-top: 1em;
	padding-top: 0.75em;
	border-top: 1px solid var(--color-borde-sutil);
}

/* ── Pie de página ── */
.pie {
	border-top: 1px solid var(--color-borde);
	padding-top: var(--space-xl);
	padding-bottom: var(--space-xl);
	color: var(--color-texto-alt);
	font-size: var(--fs-1);
	transition: border-color var(--transition-normal);
}

.pie__inner {
	display: grid;
	grid-template-columns: 1fr 1fr 1fr 1fr;
	gap: var(--space-xl);
}

.pie__heading {
	font-family: var(--font-mono);
	font-size: var(--fs-2);
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--color-acento);
	margin-bottom: var(--space-s);
}

.pie__menu {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 0.4em;
}

.pie a {
	color: var(--color-texto-alt);
	text-decoration: none;
	transition: color var(--transition-fast);
}

.pie a:hover {
	color: var(--color-acento);
}

.pie__brand {
	font-family: var(--font-mono);
	font-size: var(--fs0);
	font-weight: 700;
	color: var(--color-texto);
	margin-bottom: var(--space-xs);
}

.pie__prompt {
	color: var(--color-acento);
}

.pie__copy {
	margin-bottom: 0.3em;
}

.pie__tech {
	margin-bottom: 0.6em;
}

.pie__versions {
	font-family: var(--font-mono);
	font-size: var(--fs-2);
}

@media screen and (max-width: 40rem) {
	.pie__inner {
		grid-template-columns: 1fr;
		gap: var(--space-l);
	}
}

/* ── Enlace "volver a…" ── */
.post-back {
	margin-top: var(--space-m);
}

.post-back__link {
	display: inline-flex;
	align-items: center;
	gap: 0.4em;
	font-family: var(--font-mono);
	font-size: var(--fs-1);
	color: var(--color-texto-alt);
	text-decoration: none;
	padding: 0.5em 1em;
	border: 1px solid var(--color-borde);
	border-radius: var(--radius-m);
	transition: color var(--transition-fast),
		border-color var(--transition-fast),
		background-color var(--transition-fast);
}

.post-back__link:hover {
	color: var(--color-acento);
	border-color: var(--color-acento);
	background-color: var(--color-acento-suave);
}

/* ── Encabezado de sección ── */
.seccion-header {
	margin-bottom: var(--space-xl);
	padding-bottom: var(--space-l);
	border-bottom: 2px solid var(--color-borde);
}

.seccion-header__title {
	font-size: var(--fs5);
	font-weight: 800;
	letter-spacing: -0.03em;
	margin-bottom: var(--space-xs);
}

.seccion-header__marker {
	color: var(--color-acento);
	font-family: var(--font-mono);
	font-weight: 400;
	margin-right: 0.3em;
}

.seccion-header__description {
	font-size: var(--fs1);
	color: var(--color-texto-alt);
	max-width: 55ch;
	line-height: 1.55;
}

/* ── Header anchor (markdown headings) ── */
.header-anchor {
	display: none;
}


/* ── Animaciones de entrada (scroll-triggered) ── */
/* Solo ocultar si JS está disponible — evita contenido invisible si JS falla */
.js .reveal {
	opacity: 0;
	transform: translateY(20px);
	transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
	opacity: 1;
	transform: translateY(0);
}

/* Para elementos que deben aparecer con stagger */
.js .reveal-stagger > * {
	opacity: 0;
	transform: translateY(16px);
	transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal-stagger.visible > * {
	opacity: 1;
	transform: translateY(0);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger.visible > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger.visible > *:nth-child(8) { transition-delay: 560ms; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
	.js .reveal,
	.js .reveal-stagger > * {
		opacity: 1;
		transform: none;
		transition: none;
	}

	.cabecera__cursor {
		animation: none;
		opacity: 0.8;
	}

	.postcard,
	.herramienta,
	.theme-toggle {
		transition: none;
	}
}

/* ── Selección de texto ── */
::selection {
	background-color: var(--color-acento);
	color: #fff;
}

/* ── Focus visible ── */
:focus-visible {
	outline: 2px solid var(--color-acento);
	outline-offset: 3px;
	border-radius: var(--radius-s);
}