/* Donovan Z — mundo "cartulina de precio": cartulina fosforescente, plumón negro, estrella de oferta y cinta.
   Regla de contraste: todo texto va en --plumon; naranja y rosa solo como fondos o adornos. */

@font-face {
  font-family: "Bricolage Cond";
  src: url("/fonts/bricolage-cond-800-v1.woff2") format("woff2");
  font-weight: 800;
  font-display: swap;
}
@font-face {
  font-family: "Figtree";
  src: url("/fonts/figtree-latin-v1.woff2") format("woff2");
  font-weight: 400 600;
  font-display: swap;
}
@font-face {
  font-family: "Plumon";
  src: url("/fonts/marker-acentos-v1.woff2") format("woff2");
  font-display: swap;
}
/* Respaldo con métricas cercanas para que el botón no brinque cuando llega Permanent Marker. */
@font-face {
  font-family: "Plumon Respaldo";
  src: local("Arial Black"), local("DejaVu Sans Bold"), local("Arial Bold");
  size-adjust: 92%;
  ascent-override: 98%;
}

:root {
  --naranja: #ff6a13;
  --amarillo: #ffe500;
  --rosa: #ff2d87;
  --papel: #fff8e8;
  --plumon: #141210;
  --kraft: #e9dcc4;
  --chat-fondo: #efeae2;
  --chat-mio: #d9fdd3;

  --f-display: "Bricolage Cond", "Arial Narrow", sans-serif;
  --f-texto: "Figtree", system-ui, sans-serif;
  --f-plumon: "Plumon", "Plumon Respaldo", cursive;
  --fuente-texto: var(--f-texto);
  --fuente-titulo: var(--f-display);

  --t-hero: clamp(2.6rem, 1.4rem + 5.6vw, 5.6rem);
  --t-h2: clamp(2rem, 1.3rem + 3vw, 3.9rem);
  --t-h3: clamp(1.35rem, 1.1rem + 1vw, 1.8rem);
  --t-base: clamp(1.05rem, 1rem + 0.25vw, 1.2rem);
  --t-chico: 0.92rem;

  --gutter: clamp(1rem, 0.5rem + 3vw, 3rem);
  --seccion: clamp(4rem, 2.5rem + 6vw, 8rem);
  --sombra-pegada: 6px 10px 0 rgba(20, 18, 16, 0.2);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--naranja);
  color: var(--plumon);
  font-family: var(--f-texto);
  font-size: var(--t-base);
  line-height: 1.55;
  overflow-x: clip;
}
html { overflow-x: clip; }
main > section { overflow-x: clip; }

img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--plumon); outline-offset: 3px; border-radius: 4px; }
.visualmente-oculto { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.saltar {
  position: absolute; left: var(--gutter); top: -4rem;
  background: var(--plumon); color: var(--papel); padding: 0.6rem 1rem; z-index: 10;
}
.saltar:focus { top: 0.5rem; }

.envoltura { width: min(1180px, 100% - 2 * var(--gutter)); margin-inline: auto; }

/* ---------- Encabezado ---------- */
.cabecera {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-block: 1.1rem;
}
.cabecera__logo img { width: clamp(150px, 30vw, 200px); }
.cabecera nav { display: flex; align-items: center; gap: clamp(0.8rem, 2vw, 1.8rem); }
.cabecera nav a { font-weight: 600; text-decoration: none; font-size: 0.98rem; }
.cabecera nav a:not(.cta):hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
@media (max-width: 760px) { .cabecera nav a:not(.cta) { display: none; } }

/* ---------- Piezas del mundo ---------- */
.cartulina {
  position: relative;
  background: var(--amarillo);
  box-shadow: var(--sombra-pegada);
}
.cinta {
  position: absolute; top: -14px; width: 96px; height: 28px;
  background: rgba(255, 248, 232, 0.72);
  box-shadow: 0 1px 2px rgba(20, 18, 16, 0.12);
  pointer-events: none;
}
.cinta--izq { left: 28px; transform: rotate(-6deg); }
.cinta--der { right: 28px; transform: rotate(5deg); }

.estrella {
  --lado: clamp(120px, 10vw + 70px, 178px);
  position: absolute; width: var(--lado); height: var(--lado);
  background: var(--rosa);
  clip-path: polygon(50% 0, 61% 18%, 82% 9%, 80% 31%, 100% 38%, 86% 54%, 98% 73%, 76% 76%, 72% 98%, 54% 86%, 36% 100%, 30% 78%, 8% 80%, 15% 59%, 0 43%, 19% 33%, 15% 11%, 37% 18%);
  display: grid; place-items: center; text-align: center;
  transform: rotate(10deg);
  line-height: 1;
}
.estrella span { font-family: var(--f-plumon); font-size: calc(var(--lado) * 0.1); display: block; }
.estrella strong {
  font-family: var(--f-display); font-weight: 800; letter-spacing: -0.02em;
  font-size: calc(var(--lado) * 0.22); display: block; margin-block: 0.12em;
}

.cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55em;
  min-height: 3.4rem; padding: 0.85rem 1.6rem;
  background: var(--plumon); color: var(--amarillo);
  font-family: var(--f-plumon); font-size: clamp(1.15rem, 1rem + 0.6vw, 1.45rem);
  text-decoration: none; line-height: 1.1;
  box-shadow: 4px 5px 0 rgba(20, 18, 16, 0.25);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.cta:hover { transform: translate(-2px, -2px) rotate(-0.6deg); box-shadow: 7px 8px 0 rgba(20, 18, 16, 0.25); }
.cta:active { transform: translate(2px, 2px); box-shadow: 1px 2px 0 rgba(20, 18, 16, 0.25); }
.cta:focus-visible { outline-color: var(--plumon); outline-offset: 4px; }
.cta--chica { min-height: 2.6rem; padding: 0.5rem 1rem; font-size: 1.02rem; box-shadow: 3px 4px 0 rgba(20, 18, 16, 0.25); }
.cta svg { width: 1.1em; height: 1.1em; flex: none; }

.polaroid {
  background: #fffdf6; padding: 10px 10px 0; width: max-content;
  box-shadow: var(--sombra-pegada); transform: rotate(3deg); position: relative;
}
.polaroid img { width: var(--foto, 150px); height: auto; aspect-ratio: 1; object-fit: cover; }
.polaroid figcaption {
  font-family: var(--f-plumon); font-size: 1rem; line-height: 1.2;
  padding: 0.55rem 0.2rem 0.7rem; max-width: var(--foto, 150px);
}
.polaroid .cinta { top: -12px; left: 50%; margin-left: -40px; width: 80px; transform: rotate(-3deg); }

h1, h2, h3 { font-family: var(--f-display); font-weight: 800; letter-spacing: -0.025em; line-height: 0.95; text-wrap: balance; }
h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); line-height: 1.05; }
p { text-wrap: pretty; }
.subrayado { background: linear-gradient(transparent 60%, var(--rosa) 60%, var(--rosa) 90%, transparent 90%); }
.nota { font-family: var(--f-plumon); font-size: 1.05rem; line-height: 1.25; }

/* ---------- Portada ---------- */
.portada { padding-block: clamp(1rem, 3vw, 2.5rem) var(--seccion); }
.portada__rejilla {
  display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.75fr);
  gap: clamp(1.5rem, 4vw, 4rem); align-items: center;
}
.portada .cartulina {
  display: flex; flex-direction: column;
  padding: clamp(1.6rem, 1rem + 3vw, 3.2rem) clamp(1.3rem, 0.8rem + 3vw, 3.2rem) clamp(2rem, 1rem + 3vw, 3.4rem);
  transform: rotate(-1.2deg);
}
.portada h1 { font-size: var(--t-hero); max-width: 16ch; }
.portada__sub { order: 1; margin-top: 1.3rem; max-width: 46ch; font-weight: 600; font-size: clamp(1.08rem, 1rem + 0.45vw, 1.3rem); }
.portada__acciones { order: 2; margin-top: 1.8rem; display: flex; flex-wrap: wrap; align-items: center; gap: 0.9rem 1.4rem; }
.portada__acciones .nota { max-width: 18ch; }
.portada .estrella { right: clamp(-3rem, -3vw, -1rem); bottom: clamp(-3.5rem, -4vw, -2rem); }
.portada__yo { justify-self: center; display: grid; gap: 1.6rem; justify-items: center; }
.portada__yo .polaroid { --foto: clamp(150px, 16vw, 210px); }
.portada__dato { font-weight: 600; max-width: 22ch; text-align: center; font-size: 1rem; }

@media (max-width: 760px) {
  .portada__rejilla { grid-template-columns: 1fr; }
  .portada h1 { max-width: none; }
  .portada .cartulina { transform: rotate(-0.8deg); }
  .portada__sub { order: 3; }
  .portada .estrella { --lado: 112px; right: -0.6rem; top: auto; bottom: -3.4rem; }
  .portada__yo { grid-template-columns: auto 1fr; justify-items: start; align-items: center; gap: 1rem; margin-top: 1rem; }
  .portada__yo .polaroid { --foto: 96px; padding: 6px 6px 0; }
  .portada__yo .polaroid figcaption { font-size: 0.9rem; }
  .cta { justify-content: flex-start; }
  .portada__dato { text-align: left; }
}
@media (max-width: 760px) {
  .portada__acciones { order: 2; margin-top: 1.2rem; }
  .portada .cartulina { padding-bottom: 5rem; }
}

/* ---------- Escena + chat ---------- */
.escena { background: var(--papel); padding-block: var(--seccion); }
.escena__rejilla { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.escena h2 { max-width: 16ch; }
.escena__texto > p { margin-top: 1.2rem; max-width: 44ch; }
.mio {
  margin-top: 2.2rem; padding: 1.4rem 1.5rem 1.5rem; max-width: 34rem;
  background: var(--amarillo);
}
.mio p + p { margin-top: 0.6rem; }
.mio a { font-weight: 600; text-decoration-thickness: 2px; text-underline-offset: 3px; }

.telefono {
  background: var(--plumon); border-radius: 34px; padding: 12px;
  box-shadow: 10px 16px 0 rgba(20, 18, 16, 0.12); max-width: 420px; justify-self: center; width: 100%;
}
.telefono__barra {
  display: flex; align-items: center; gap: 0.7rem; padding: 0.7rem 0.9rem;
  background: #1f2c33; color: #e9edef; border-radius: 24px 24px 0 0; font-size: 0.95rem;
}
.telefono__avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--papel); display: grid; place-items: center; color: var(--plumon); font-weight: 800; font-family: var(--f-display); }
.telefono__barra small { display: block; opacity: 0.75; font-size: 0.78rem; }
.chat {
  position: relative; list-style: none; padding: 1rem 0.8rem 1.2rem; margin: 0;
  background: var(--chat-fondo); border-radius: 0 0 24px 24px;
  display: flex; flex-direction: column; gap: 0.45rem;
  max-height: 34rem; overflow-y: auto;
  font-size: 0.95rem; line-height: 1.38;
}
.burbuja {
  max-width: 86%; padding: 0.45rem 0.65rem 0.35rem; border-radius: 10px;
  background: #fff; box-shadow: 0 1px 1px rgba(20, 18, 16, 0.13);
  align-self: flex-start; overflow-wrap: anywhere;
}
.burbuja--asistente { align-self: flex-end; background: var(--chat-mio); }
.burbuja--dueno { align-self: flex-end; background: #cfe9ff; }
.burbuja time { display: block; text-align: right; font-size: 0.7rem; opacity: 0.6; margin-top: 0.1rem; }
.burbuja img { border-radius: 6px; width: 220px; }
.burbuja--marcador { font-style: italic; }
.chat--completo { max-height: none; overflow: visible; }
@media (min-width: 861px) { .escena__texto:has(+ .telefono-marco .chat--completo) { position: sticky; top: 2rem; } }
.chat__etiqueta { margin-top: 0.9rem; font-size: var(--t-chico); text-align: center; }

/* La animación solo cambia visibilidad: sin JS o con movimiento reducido el chat se lee completo. */
.chat--animar .burbuja { opacity: 0; transform: translateY(10px) scale(0.98); }
.chat--animar .burbuja.visible { opacity: 1; transform: none; transition: opacity 0.45s var(--ease), transform 0.55s var(--ease); }

@media (max-width: 860px) { .escena__rejilla { grid-template-columns: 1fr; } }

/* ---------- Máquina ---------- */
.como { padding-block: var(--seccion); }
.como__cabeza { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1rem 2rem; }
.como h2 { max-width: 14ch; }
.como__cabeza p { max-width: 36ch; font-weight: 600; }
.maquina-marco { max-width: 980px; margin-inline: auto; margin-top: 2.4rem; background: var(--papel); padding: clamp(0.8rem, 2vw, 1.6rem); box-shadow: var(--sombra-pegada); }
.pasos { list-style: none; padding: 0; margin-top: 1.6rem; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; counter-reset: paso; }
.pasos li { counter-increment: paso; font-weight: 600; font-size: 0.98rem; line-height: 1.3; }
.pasos li::before { content: counter(paso); display: block; font-family: var(--f-plumon); font-size: 1.8rem; line-height: 1; margin-bottom: 0.3rem; }
@media (max-width: 760px) { .pasos { grid-template-columns: 1fr; } }
.mq { display: flex; flex-direction: column; }
.mq .mq-modo { order: -1; margin: 0 0 2rem; } /* gana a maquina.css, que carga después */

/* ---------- Por qué conmigo ---------- */
.porque { background: var(--papel); padding-block: var(--seccion); }
.porque__rejilla { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(2rem, 5vw, 5rem); }
.porque__intro p { margin-top: 1.2rem; max-width: 40ch; }
.lista-plumon { list-style: none; padding: 0; display: grid; gap: 1.4rem; }
.lista-plumon li { display: grid; grid-template-columns: 2.6rem 1fr; gap: 0.9rem; align-items: start; }
.lista-plumon li::before {
  content: "✔"; font-family: var(--f-plumon); font-size: 1.5rem; line-height: 1;
  width: 2.4rem; height: 2.4rem; display: grid; place-items: center;
  background: var(--amarillo); border: 2.5px solid var(--plumon); border-radius: 50%;
  transform: rotate(-6deg);
}
.lista-plumon strong { display: block; font-family: var(--f-display); font-size: var(--t-h3); letter-spacing: -0.02em; line-height: 1.05; margin-bottom: 0.25rem; }
@media (max-width: 860px) { .porque__rejilla { grid-template-columns: 1fr; } }

/* ---------- Precios ---------- */
.precios { background: var(--rosa); padding-block: var(--seccion); }
.precios h2 { max-width: 16ch; }
.precios__intro { margin-top: 1rem; max-width: 46ch; font-weight: 600; }
.planes { margin-top: 3rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.2rem, 2.5vw, 2rem); align-items: start; }
.plan { padding: 2rem 1.6rem 1.8rem; display: flex; flex-direction: column; gap: 0.9rem; }
.plan:nth-child(1) { background: var(--amarillo); }
.plan:nth-child(2) { background: var(--papel); transform: translateY(-0.8rem); }
.plan:nth-child(3) { background: var(--naranja); }
.plan .cta { align-self: flex-start; margin-top: 0.4rem; }
.plan__precio { font-family: var(--f-display); font-weight: 800; font-size: clamp(2.6rem, 2rem + 2vw, 3.6rem); letter-spacing: -0.03em; line-height: 0.9; }
.plan__precio small { display: block; font-family: var(--f-texto); font-weight: 600; font-size: 1rem; letter-spacing: 0; margin-top: 0.35rem; }
.plan__mes { font-weight: 600; border-top: 2px solid var(--plumon); padding-top: 0.7rem; }
.plan ul { padding-left: 1.1rem; display: grid; gap: 0.35rem; font-size: 1rem; }
.plan .estrella { --lado: 128px; top: -3.8rem; right: -1.8rem; background: var(--plumon); color: var(--amarillo); }
.precios__pie { margin-top: 3rem; display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; font-weight: 600; }
.precios__pie a { text-decoration-thickness: 2px; text-underline-offset: 3px; }
@media (max-width: 900px) {
  .planes { grid-template-columns: 1fr; max-width: 30rem; }
  .plan:nth-child(2) { transform: none; margin-top: 1.5rem; }
  .plan .estrella { right: -0.4rem; }
}

/* ---------- Sobre mí ---------- */
.sobre { background: var(--papel); padding-block: var(--seccion); }
.sobre__rejilla { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.sobre .polaroid { --foto: clamp(170px, 20vw, 250px); transform: rotate(-2.5deg); }
.sobre__texto p { margin-top: 1rem; max-width: 52ch; }
@media (max-width: 700px) { .sobre__rejilla { grid-template-columns: 1fr; } }

/* ---------- Preguntas ---------- */
.preguntas { background: var(--amarillo); padding-block: var(--seccion); }
.preguntas__lista { margin-top: 2.4rem; display: grid; gap: 0; max-width: 52rem; border-top: 2.5px solid var(--plumon); }
.preguntas details { border-bottom: 2.5px solid var(--plumon); }
.preguntas summary {
  cursor: pointer; list-style: none; padding: 1.15rem 2.6rem 1.15rem 0; position: relative;
  font-family: var(--f-display); font-weight: 800; font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.6rem); letter-spacing: -0.015em; line-height: 1.1;
}
.preguntas summary::-webkit-details-marker { display: none; }
.preguntas summary::after {
  content: "+"; position: absolute; right: 0.2rem; top: 50%; translate: 0 -50%;
  font-family: var(--f-plumon); font-size: 1.8rem; transition: rotate 0.3s var(--ease);
}
.preguntas details[open] summary::after { rotate: 45deg; }
.preguntas details p { padding: 0 0 1.3rem; max-width: 60ch; }

/* ---------- Cierre ---------- */
.cierre { padding-block: var(--seccion); }
.cierre .cartulina { padding: clamp(2rem, 1rem + 4vw, 4rem); max-width: 54rem; }
.cierre h2 { max-width: 15ch; }
.cierre p { margin-top: 1rem; max-width: 44ch; font-weight: 600; }
.cierre .cta { margin-top: 1.8rem; }
.cierre__extra { margin-top: 3rem; font-weight: 600; }

/* ---------- Pie ---------- */
.pie { background: var(--plumon); color: var(--papel); padding-block: 2.6rem; font-size: 0.95rem; }
.pie__rejilla { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.2rem 2rem; align-items: center; }
.pie a { color: var(--papel); }
.pie :focus-visible { outline-color: var(--amarillo); }
.pie nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }

/* ---------- Páginas interiores ---------- */
.acciones { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.lista-plumon--suelta { margin-top: 1.6rem; }
.planes--dos { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 52rem; }
@media (max-width: 900px) { .planes--dos { grid-template-columns: 1fr; } }
.interior { padding-block: clamp(1.5rem, 4vw, 3rem) var(--seccion); }
.interior .cartulina { padding: clamp(1.6rem, 1rem + 3vw, 3rem); transform: rotate(-0.8deg); }
.interior h1 { font-size: clamp(2.3rem, 1.4rem + 4vw, 4.6rem); max-width: 16ch; }
.interior__sub { margin-top: 1.1rem; max-width: 50ch; font-weight: 600; }
.texto-largo { background: var(--papel); padding-block: var(--seccion); }
.texto-largo .envoltura > * + * { margin-top: 1rem; }
.texto-largo .envoltura > h2 { font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.5rem); margin-top: 2.6rem; }
.texto-largo p, .texto-largo li { max-width: 68ch; }
.texto-largo ul { padding-left: 1.2rem; display: grid; gap: 0.4rem; }
.ejemplos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.ejemplos figure { background: #fffdf6; padding: 10px; box-shadow: var(--sombra-pegada); }
.ejemplos figure:nth-child(odd) { transform: rotate(-1.2deg); }
.ejemplos figure:nth-child(even) { transform: rotate(1deg); }
.ejemplos figcaption { font-family: var(--f-plumon); font-size: 0.95rem; padding-top: 0.5rem; }
@media (max-width: 760px) { .ejemplos { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* Caso Vectolaser: dos secciones de papel seguidas se separan con kraft. */
.escena + .porque { background: var(--kraft); }

/* Máquina en celular: video grabado de la máquina viva (ver js/maquina-carga.js). */
.mq-video { display: block; width: 100%; height: auto; aspect-ratio: 1000 / 678; background: var(--papel); }

/* ---------- Scroll: la máquina avanza con el scroll (js/scroll.js) ---------- */
.mq-lienzo { position: relative; aspect-ratio: 1000 / 678; background: var(--papel); }
.mq-lienzo canvas, .mq-lienzo img { position: absolute; inset: 0; width: 100%; height: 100%; }
.mq-lienzo canvas { opacity: 0; }
.mq-selector { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 0.8rem; border: 0; padding: 0; margin: 0 0 1.4rem; }
.mq-selector legend { float: left; margin-right: 0.4rem; font-weight: 600; }
.mq-selector label {
  display: inline-flex; align-items: center; gap: 0.5rem; min-height: 44px; padding: 0.4rem 1rem;
  background: var(--papel); border: 2px solid var(--plumon); font-weight: 600; cursor: pointer;
}
.mq-selector label:has(input:checked) { background: var(--amarillo); box-shadow: 4px 4px 0 var(--plumon); }
.mq-selector input { accent-color: var(--plumon); }
.mq-selector label:has(input:focus-visible) { outline: 3px solid var(--plumon); outline-offset: 3px; }
.pasos-grandes { list-style: none; padding: 0; margin: 1.6rem 0 0; display: grid; gap: 1.2rem; counter-reset: paso; }
.pasos-grandes li { counter-increment: paso; display: grid; grid-template-columns: 3rem 1fr; gap: 0.2rem 0.8rem; }
.pasos-grandes li::before { content: counter(paso); grid-row: span 2; font-family: var(--f-plumon); font-size: 2.6rem; line-height: 1; }
.pasos-grandes strong { font-family: var(--f-display); font-weight: 800; font-size: clamp(1.6rem, 1.1rem + 2vw, 2.6rem); letter-spacing: -0.02em; line-height: 1; }
.pasos-grandes span { font-weight: 600; }
.mq-lectura-scroll { margin-top: 1rem; font-weight: 600; }

/* Solo con JS y movimiento permitido: sección alta con la máquina fija y un paso a la vez. */
.js-scroll .como__pista { height: 520vh; position: relative; }
.js-scroll .como__pegado {
  position: sticky; top: 0; min-height: 100vh; min-height: 100svh;
  display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center; padding-block: 2rem;
}
.js-scroll .mq-lienzo canvas { opacity: 1; }
.js-scroll .pasos-grandes { position: relative; display: block; min-height: 9.5rem; }
.js-scroll .pasos-grandes li { position: absolute; inset: 0 auto auto 0; opacity: 0; transform: translateY(18px); transition: opacity 0.35s var(--ease), transform 0.45s var(--ease); }
.js-scroll .pasos-grandes li.activo { opacity: 1; transform: none; }
.js-scroll .pasos-grandes li::before { font-size: 3.4rem; }
.js-scroll .pasos-grandes strong { font-size: clamp(2rem, 1.2rem + 3.4vw, 3.6rem); }
@media (max-width: 760px) {
  .js-scroll .como__pegado { grid-template-columns: 1fr; align-content: center; gap: 1rem; padding-block: 1rem; }
  .js-scroll .mq-columna-texto { order: 2; }
  .js-scroll .pasos-grandes { min-height: 8rem; margin-top: 0.4rem; }
  .js-scroll .pasos-grandes strong { font-size: 2rem; }
  .js-scroll .pasos-grandes li::before { font-size: 2.6rem; }
  .mq-selector { margin-bottom: 0.4rem; flex-wrap: nowrap; }
  .mq-selector legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .mq-selector label { padding: 0.35rem 0.8rem; }
}

/* Chat que avanza con el scroll: el teléfono se queda fijo mientras bajas. */
.js-scroll .chat-pista { height: 230vh; position: relative; }
.js-scroll .chat-pista .telefono-marco { position: sticky; top: 4vh; }
.js-scroll .chat-pista .chat { max-height: min(34rem, 72vh); overflow: hidden; }