/* ==========================================================================
   Scale Up Recursos — Cohete de progreso
   Mobile first. El color de cada etapa llega desde PHP como --sur-c, y el
   de la etapa actual como --sur-activo.
   ========================================================================== */

.sur-ch {
	--sur-ch-texto: #f4f2ff;
	--sur-ch-suave: #cfcbea;
	--sur-ch-tenue: #a9a4d1;
	--sur-ch-linea: rgba(255, 255, 255, 0.12);
	--sur-ch-velo: rgba(255, 255, 255, 0.045);
	--sur-ch-boton-fondo: rgba(255, 255, 255, 0.06);
	--sur-ch-borde: rgba(255, 255, 255, 0.22);
	--sur-ch-pista: rgba(255, 255, 255, 0.2);
	--sur-ch-nodo: rgba(255, 255, 255, 0.35);
	--sur-ch-nodo-fondo: rgba(255, 255, 255, 0.08);
	--sur-ch-humo: rgba(255, 236, 220, 0.75);
	--sur-ch-btn-fondo: #f4f2ff;
	--sur-ch-btn-texto: #0b0c1f;

	position: relative;
	isolation: isolate;
	overflow: hidden;
	padding-block: clamp(2rem, 5vw, 3.5rem);
	color: var(--sur-ch-texto);
	background: var(--sur-ch-fondo, linear-gradient(160deg, #0b0c1f 0%, #14123a 55%, #221447 100%));
	font-family: var(--prb-font-body, inherit);
}

/* Fondo claro elegido a mano: todo pasa a oscuro. */
.sur-ch--claro {
	--sur-ch-texto: #14123a;
	--sur-ch-suave: #4a4760;
	--sur-ch-tenue: #5c5874;
	--sur-ch-linea: rgba(20, 18, 58, 0.14);
	--sur-ch-velo: rgba(20, 18, 58, 0.04);
	--sur-ch-boton-fondo: rgba(20, 18, 58, 0.05);
	--sur-ch-borde: rgba(20, 18, 58, 0.22);
	--sur-ch-pista: rgba(20, 18, 58, 0.22);
	--sur-ch-nodo: rgba(20, 18, 58, 0.3);
	--sur-ch-nodo-fondo: rgba(20, 18, 58, 0.06);
	--sur-ch-humo: rgba(160, 150, 200, 0.6);
	--sur-ch-btn-fondo: #14123a;
	--sur-ch-btn-texto: #f4f2ff;
}

.sur-sr {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	white-space: nowrap;
}

/* ---------- Cielo: estrellas con degradados, sin imagenes ni DOM ---------- */

.sur-ch-cielo {
	position: absolute;
	inset: -48px 0 0;
	z-index: -1;
	pointer-events: none;
	opacity: 0.55;
	background-image:
		radial-gradient(1.4px 1.4px at 22px 34px, #fff 50%, transparent 51%),
		radial-gradient(1px 1px at 120px 80px, #fff 50%, transparent 51%),
		radial-gradient(1.6px 1.6px at 200px 160px, #fff 50%, transparent 51%),
		radial-gradient(1px 1px at 60px 210px, #fff 50%, transparent 51%),
		radial-gradient(1.2px 1.2px at 170px 20px, #fff 50%, transparent 51%);
	background-size: 240px 240px;
	transform: translateY(calc(var(--sur-ch-altura, 0) * 40px));
	transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sur-ch-cielo::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image:
		radial-gradient(1.8px 1.8px at 90px 120px, #fff 50%, transparent 51%),
		radial-gradient(1.4px 1.4px at 300px 40px, #fff 50%, transparent 51%),
		radial-gradient(1.2px 1.2px at 220px 260px, #fff 50%, transparent 51%);
	background-size: 360px 330px;
	animation: sur-ch-titila 3.6s ease-in-out infinite;
}

@keyframes sur-ch-titila {
	0%, 100% { opacity: 0.3; }
	50% { opacity: 1; }
}

.sur-ch--claro .sur-ch-cielo {
	display: none;
}

/* Bajo la cabecera transparente: se suma su alto al aire de arriba. */
.sur-ch--primero {
	padding-top: calc(var(--prb-header-height, 4.25rem) + clamp(2rem, 5vw, 3.5rem));
}

/* ---------- Estructura ---------- */

.sur-ch-inner {
	width: min(100% - 2 * var(--prb-gutter, 1rem), 75rem);
	margin-inline: auto;
}

.sur-ch-escena {
	position: relative;
	display: flex;
	flex-direction: column;
}

.sur-ch-cabecera {
	position: relative;
	z-index: 2;
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	max-width: 40rem;
	margin-bottom: 1.75rem;
}

.sur-ch-ante {
	margin: 0;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--sur-c1, #ff8a4c);
}

.sur-ch-titulo {
	margin: 0;
	font-family: var(--prb-font-heading, inherit);
	font-size: clamp(1.375rem, 1.2rem + 0.6vw, 1.75rem);
	font-weight: 600;
	line-height: 1.2;
	color: var(--sur-ch-texto);
}

/* En la tarjeta curva la forma la dibuja el SVG de detras. La caja solo
   reserva el hueco del texto y deja pasar los clics a los puntos. */
.sur-ch-tarjeta {
	position: relative;
	z-index: 2;
	min-height: 18rem;
	padding: 1.75rem 5.75rem 8.5rem 1.25rem;
	pointer-events: none;
}

.sur-ch-etapas {
	display: grid;
	pointer-events: auto;
}

/* Todas las etapas ocupan la misma celda: la tarjeta mide lo que la mas alta
   y no salta al cambiar. */
.sur-ch-etapa {
	grid-area: 1 / 1;
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	min-width: 0;
}

.sur-ch-etapa:not(.is-activa) {
	visibility: hidden;
	pointer-events: none;
	transition: visibility 0s linear 0.7s;
}

/* ---------- Entrada escalonada del texto ---------- */

.sur-ch-meta {
	margin: 0;
	display: flex;
	align-items: baseline;
	gap: 0.5rem;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--sur-ch-tenue);
	opacity: 0;
	transform: translateX(-12px);
	transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.sur-ch-num {
	font-family: var(--prb-font-heading, inherit);
	font-size: 1.25rem;
	letter-spacing: 0;
	color: var(--sur-c);
}

.is-activa .sur-ch-meta {
	opacity: 1;
	transform: none;
	transition-delay: 0.3s;
}

.sur-ch-etapa-titulo {
	margin: 0;
	font-family: var(--prb-font-heading, inherit);
	font-size: clamp(2rem, 1.4rem + 2.4vw, 3.5rem);
	font-weight: 700;
	line-height: 1.05;
	letter-spacing: -0.01em;
	color: var(--sur-ch-texto);
}

.sur-ch-w {
	display: inline-block;
	overflow: hidden;
	vertical-align: top;
	padding-bottom: 0.1em;
}

.sur-ch-w > span {
	display: inline-block;
	opacity: 0;
	transform: translateY(110%);
	transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.is-activa .sur-ch-w > span {
	opacity: 1;
	transform: none;
	transition-delay: calc(0.42s + var(--j, 0) * 0.09s);
}

.sur-ch-texto {
	max-width: 30rem;
	margin: 0;
	font-size: 1rem;
	line-height: 1.6;
	color: var(--sur-ch-suave);
	opacity: 0;
	filter: blur(8px);
	transform: translateY(14px);
	transition: opacity 0.7s ease, filter 0.7s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.is-activa .sur-ch-texto {
	opacity: 1;
	filter: none;
	transform: none;
	transition-delay: 0.65s;
}

/* ---------- Boton de cada etapa ---------- */

.sur-ch-btn {
	align-self: flex-start;
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	min-height: 3rem;
	box-sizing: border-box;
	margin-top: 0.25rem;
	padding: 0.375rem 0.375rem 0.375rem 1.25rem;
	border-radius: 999px;
	background: var(--sur-ch-btn-fondo);
	color: var(--sur-ch-btn-texto);
	font-size: 0.9375rem;
	font-weight: 600;
	line-height: 1.2;
	text-decoration: none;
	opacity: 0;
	transform: translateY(12px);
	transition: opacity 0.6s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.sur-ch-btn:hover,
.sur-ch-btn:focus-visible {
	color: var(--sur-ch-btn-texto);
	text-decoration: none;
}

.is-activa .sur-ch-btn {
	opacity: 1;
	transform: none;
	transition-delay: 0.85s;
}

.sur-ch-btn-ico {
	flex-shrink: 0;
	display: grid;
	place-items: center;
	width: 2.125rem;
	height: 2.125rem;
	border-radius: 50%;
	background: var(--sur-c);
	color: #0b0c1f;
	transition: transform 0.25s ease;
}

.sur-ch-btn:hover .sur-ch-btn-ico {
	transform: translateX(3px);
}

/* ---------- Controles ---------- */

.sur-ch-controles {
	position: relative;
	z-index: 3;
	display: grid;
	grid-template-columns: auto 1fr auto;
	grid-template-areas: "barras barras barras" "prev pausa next";
	align-items: center;
	gap: 1.125rem 0.75rem;
	margin-top: 1.5rem;
}

.sur-ch-barras { grid-area: barras; display: flex; gap: 5px; }
.sur-ch-prev { grid-area: prev; }
.sur-ch-next { grid-area: next; }
.sur-ch-pausa { grid-area: pausa; justify-self: center; }

.sur-ch-barra {
	flex: 1;
	height: 4px;
	border-radius: 4px;
	background: var(--sur-ch-linea);
	overflow: hidden;
}

.sur-ch-barra > span {
	display: block;
	width: 0;
	height: 100%;
	border-radius: inherit;
	background: var(--sur-c);
	transition: width 0.4s ease;
}

.sur-ch-barra.is-hecha > span,
.sur-ch-barra.is-activa > span {
	width: 100%;
}

/* En automatico la barra actual es el reloj: se llena en lo que dura la
   etapa y se congela con la pausa. */
.is-auto .sur-ch-barra.is-activa > span {
	width: 0;
	transition: none;
}

.is-auto .sur-ch-barra.is-corriendo > span {
	animation: sur-ch-reloj var(--sur-ch-intervalo, 5s) linear forwards;
}

.sur-ch.is-pausado .sur-ch-barra.is-corriendo > span {
	animation-play-state: paused;
}

@keyframes sur-ch-reloj {
	from { width: 0; }
	to { width: 100%; }
}

.sur-ch-flecha,
.sur-ch-pausa {
	appearance: none;
	display: grid;
	place-items: center;
	margin: 0;
	padding: 0;
	min-height: 0;
	border: 1px solid var(--sur-ch-borde);
	border-radius: 50%;
	background: transparent;
	box-shadow: none;
	color: var(--sur-ch-texto);
	line-height: 1;
	cursor: pointer;
	transition: transform 0.2s ease, opacity 0.2s ease, background-color 0.6s ease;
}

.sur-ch-flecha {
	width: 3.25rem;
	height: 3.25rem;
	background: var(--sur-ch-boton-fondo);
}

.sur-ch-next {
	border: 0;
	background: var(--sur-activo, var(--sur-c1, #ff8a4c));
	color: #0b0c1f;
}

.sur-ch-pausa {
	width: 2.75rem;
	height: 2.75rem;
}

.sur-ch-flecha:disabled {
	opacity: 0.3;
	cursor: default;
}

.sur-ch-flecha:not(:disabled):hover,
.sur-ch-pausa:hover {
	transform: translateY(-2px);
}

.sur-ch-flecha:focus-visible,
.sur-ch-pausa:focus-visible,
.sur-ch-punto:focus-visible,
.sur-ch-btn:focus-visible {
	outline: 2px solid #3fd0ff;
	outline-offset: 3px;
}

.sur-ch-ico-play,
.sur-ch-pausa[aria-pressed="true"] .sur-ch-ico-pausa {
	display: none;
}

.sur-ch-pausa[aria-pressed="true"] .sur-ch-ico-play {
	display: block;
}

/* ---------- Vuelo: trayectoria, puntos, humo y cohete ---------- */

.sur-ch-vuelo {
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	height: 0;
	z-index: 1;
	pointer-events: none;
}

/* Sin JavaScript no hay vuelo: la seccion se lee como texto normal. */
.sur-ch:not(.is-lista) .sur-ch-vuelo,
.sur-ch:not(.is-lista) .sur-ch-controles {
	display: none;
}

.sur-ch-svg {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	overflow: visible;
}

.sur-ch-forma {
	fill: var(--sur-ch-velo);
	stroke: var(--sur-ch-linea);
	stroke-width: 1;
}

.sur-ch-forma--tinte {
	stroke: none;
}

.sur-ch-pista {
	fill: none;
	stroke: var(--sur-ch-pista);
	stroke-width: 2;
	stroke-dasharray: 2 9;
	stroke-linecap: round;
}

.sur-ch-brillo,
.sur-ch-estela {
	fill: none;
	stroke-linecap: round;
}

.sur-ch-brillo {
	stroke-width: 14;
	opacity: 0.35;
	filter: blur(7px);
}

.sur-ch-estela {
	stroke-width: 4.5;
}

.sur-ch-plataforma {
	position: absolute;
	left: 0;
	top: 0;
	display: none;
	width: 150px;
	height: 8px;
	margin-left: -75px;
	border-radius: 8px;
	background: linear-gradient(90deg, transparent, var(--sur-ch-borde), transparent);
}

.sur-ch-punto {
	appearance: none;
	position: absolute;
	left: 0;
	top: 0;
	width: 44px;
	height: 44px;
	margin: -22px 0 0 -22px;
	padding: 0;
	min-height: 0;
	border: 0;
	border-radius: 50%;
	background: transparent;
	box-shadow: none;
	cursor: pointer;
	pointer-events: auto;
}

.sur-ch-punto::before {
	content: "";
	position: absolute;
	left: 50%;
	top: 50%;
	width: 14px;
	height: 14px;
	box-sizing: border-box;
	border: 2px solid var(--sur-ch-nodo);
	border-radius: 50%;
	background: var(--sur-ch-nodo-fondo);
	transform: translate(-50%, -50%);
	transition: background-color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.sur-ch-punto.is-alcanzado::before {
	border-color: var(--sur-c);
	background: var(--sur-c);
	box-shadow: 0 0 14px var(--sur-c);
}

/* El anillo que late marca la etapa actual, salvo mientras el cohete viaja. */
.sur-ch-punto.is-actual::after {
	content: "";
	position: absolute;
	left: 50%;
	top: 50%;
	width: 26px;
	height: 26px;
	box-sizing: border-box;
	border: 2px solid var(--sur-c);
	border-radius: 50%;
	animation: sur-ch-anillo 1.8s ease-out infinite;
}

.sur-ch.is-volando .sur-ch-punto.is-actual::after {
	display: none;
}

@keyframes sur-ch-anillo {
	0% { transform: translate(-50%, -50%) scale(0.7); opacity: 0.9; }
	100% { transform: translate(-50%, -50%) scale(2.6); opacity: 0; }
}

.sur-ch-punto-num {
	position: absolute;
	left: 38px;
	top: 26px;
	display: none;
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.08em;
	color: var(--sur-ch-texto);
	opacity: 0.5;
	transition: opacity 0.4s ease;
}

.sur-ch-punto.is-actual .sur-ch-punto-num {
	opacity: 1;
}

.sur-ch-humo span {
	position: absolute;
	left: 0;
	top: 0;
	border-radius: 50%;
	background: radial-gradient(circle, var(--sur-ch-humo) 0%, transparent 70%);
	opacity: 0;
	transition: opacity 0.5s ease;
	will-change: transform;
}

.sur-ch-cohete {
	position: absolute;
	left: 0;
	top: 0;
	width: 64px;
	height: 150px;
	transform-origin: 32px 55px;
	transition: opacity 0.35s ease;
	will-change: transform;
}

.sur-ch-cohete-flota {
	position: absolute;
	inset: 0;
	animation: sur-ch-flota 2.4s ease-in-out infinite;
}

@keyframes sur-ch-flota {
	0%, 100% { transform: translateY(0); }
	50% { transform: translateY(-4px); }
}

.sur-ch-halo {
	position: absolute;
	left: -38px;
	top: -15px;
	width: 140px;
	height: 140px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(255, 138, 76, 0.35), rgba(255, 138, 76, 0) 65%);
	opacity: 0.5;
	transition: opacity 0.4s ease;
}

.sur-ch-llama {
	position: absolute;
	left: 17px;
	top: 83px;
	width: 30px;
	height: 56px;
	transform-origin: 50% 0;
	transform: scale(0.9, 0.75);
	transition: transform 0.4s ease;
}

.sur-ch-llama svg {
	display: block;
	transform-origin: 50% 0;
	animation: sur-ch-chispa 0.13s ease-in-out infinite alternate;
}

@keyframes sur-ch-chispa {
	from { transform: scale(0.94, 0.86); }
	to { transform: scale(1.04, 1.08); }
}

.sur-ch-nave {
	position: absolute;
	left: 0;
	top: 0;
	overflow: visible;
}

.sur-ch-cohete.is-deriva .sur-ch-llama { transform: scale(0.98, 1.05); }
.sur-ch-cohete.is-deriva .sur-ch-halo { opacity: 0.75; }
.sur-ch-cohete.is-impulso .sur-ch-llama { transform: scale(1.1, 1.45); }
.sur-ch-cohete.is-impulso .sur-ch-halo { opacity: 1; }

/* ---------- Escritorio ---------- */

@media (min-width: 960px) {

	.sur-ch-cabecera {
		margin-bottom: 2rem;
	}

	.sur-ch-texto {
		font-size: 1.1875rem;
	}

	.sur-ch-btn {
		min-height: 3.375rem;
		padding: 0.5rem 0.5rem 0.5rem 1.625rem;
		font-size: 1.0625rem;
	}

	.sur-ch-btn-ico {
		width: 2.375rem;
		height: 2.375rem;
	}

	.sur-ch-punto::before {
		width: 16px;
		height: 16px;
	}

	/* Tarjeta curva: controles en la esquina de cielo, abajo a la derecha. */
	.sur-ch--curva .sur-ch-tarjeta {
		min-height: 30rem;
		padding: 3rem 16rem 9.5rem 3.5rem;
	}

	.sur-ch--curva .sur-ch-etapas {
		max-width: 35rem;
	}

	.sur-ch--curva .sur-ch-controles {
		position: absolute;
		right: 0;
		bottom: 0;
		width: min(24rem, 40%);
		margin: 0;
		grid-template-columns: auto 1fr auto auto;
		grid-template-areas: "prev barras pausa next";
		gap: 0.875rem;
	}

	/* Clasico: texto y controles en una tarjeta a la izquierda, vuelo a la
	   derecha. La tarjeta son dos cajas pegadas que se ven como una. */
	.sur-ch--clasico .sur-ch-escena {
		display: grid;
		grid-template-columns: minmax(0, 30rem) minmax(0, 1fr);
		grid-template-rows: auto auto auto 1fr;
		align-content: center;
		column-gap: 3rem;
		min-height: 40rem;
	}

	.sur-ch--clasico .sur-ch-cabecera {
		grid-column: 1;
		grid-row: 1;
	}

	.sur-ch--clasico .sur-ch-tarjeta {
		grid-column: 1;
		grid-row: 2;
		min-height: 0;
		padding: 2.25rem 2.25rem 0;
		border: 1px solid var(--sur-ch-linea);
		border-bottom: 0;
		border-radius: 1.5rem 1.5rem 0 0;
		background: var(--sur-ch-velo);
		pointer-events: auto;
	}

	.sur-ch--clasico .sur-ch-controles {
		grid-column: 1;
		grid-row: 3;
		margin: 0;
		padding: 2rem 2.25rem 2.25rem;
		grid-template-columns: auto 1fr auto auto;
		grid-template-areas: "prev barras pausa next";
		gap: 0.875rem;
		border: 1px solid var(--sur-ch-linea);
		border-top: 0;
		border-radius: 0 0 1.5rem 1.5rem;
		background: var(--sur-ch-velo);
	}

	.sur-ch--clasico .sur-ch-vuelo {
		position: relative;
		grid-column: 2;
		grid-row: 1 / span 4;
		height: auto;
		min-height: 38rem;
	}

	.sur-ch--clasico .sur-ch-forma {
		display: none;
	}

	.sur-ch--clasico .sur-ch-plataforma,
	.sur-ch--clasico .sur-ch-punto-num {
		display: block;
	}

	.sur-ch--clasico .sur-ch-punto::before {
		width: 18px;
		height: 18px;
	}
}

/* ---------- Movimiento reducido ---------- */

@media (prefers-reduced-motion: reduce) {

	.sur-ch-cielo::after,
	.sur-ch-cohete-flota,
	.sur-ch-llama svg,
	.sur-ch-punto.is-actual::after {
		animation: none;
	}

	.sur-ch-meta,
	.sur-ch-w > span,
	.sur-ch-texto,
	.sur-ch-btn {
		transition-duration: 0.01s !important;
		transition-delay: 0s !important;
	}
}