/* ==========================================================================
   XCENDE — tokens
   ========================================================================== */
:root {
  --surface: #FFFFFF;
  --surface-2: #F4F3F0;
  --surface-inverse: #111111;
  --ink: #111111;
  --ink-2: #45433F;
  --muted: #6E6B65;
  --ink-inverse: #F4F3F0;
  --line: #E4E2DD;
  --line-strong: #8A8780;
  --accent: #2747E0;
  --accent-hover: #1F3BC4;
  --on-accent: #FFFFFF;
  --accent-soft: #DCE2FB;

  /* Hero nocturno */
  --night: #0A0A0B;
  --filete: #3A3A3A;
  --ink-night: rgba(244, 243, 240, .88);
  --ink-night-2: rgba(244, 243, 240, .72);

  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-text: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(.2, .7, .2, 1);

  --gutter: 64px;
  --section: 128px;
  --nav-h: 80px;

  --r-card: 22px;
  --r-box: 26px;
  --r-pill: 999px;
}

@media (max-width: 720px) {
  :root {
    --gutter: 16px;
    --section: 96px;
    --nav-h: 64px;
  }
}

/* ==========================================================================
   Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--surface-2);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
p, h1, h2, h3 { margin: 0; }
strong { font-weight: 600; }

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

.skip {
  position: fixed;
  top: 12px; left: 12px;
  z-index: 100;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--ink-inverse);
  transform: translateY(-200%);
}
.skip:focus-visible { transform: none; }

/* Lenis */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

/* ==========================================================================
   Botones
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 26px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  font-family: var(--font-text);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color 500ms var(--ease), border-color 500ms var(--ease), color 500ms var(--ease);
}
.btn--primary { position: relative; isolation: isolate; overflow: hidden; gap: .5em; background: var(--accent); color: var(--on-accent); }
/* Relleno Cobalto que sube desde abajo y flecha que asciende */
.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--accent-hover);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 500ms var(--ease);
}
.btn__arrow { width: .75em; height: .75em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: square; overflow: visible; transition: transform 500ms var(--ease); }
.btn--primary:hover::before, .btn--primary:focus-visible::before { transform: scaleY(1); }
.btn--primary:hover .btn__arrow, .btn--primary:focus-visible .btn__arrow { transform: translate(.18em, -.18em); }
.btn--ghost { background: transparent; border-color: rgba(244, 243, 240, .4); color: var(--ink-inverse); }
.btn--ghost:hover { border-color: var(--ink-inverse); }

/* ==========================================================================
   Navegación (negativa sobre el hero, clara después)
   ========================================================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  padding: env(safe-area-inset-top, 0px) var(--gutter) 0;
  display: flex;
  align-items: center;
  gap: 40px;
  background-color: rgba(244, 243, 240, 0);
  border-bottom: 1px solid rgba(228, 226, 221, 0);
  transition: background-color 600ms var(--ease), border-color 600ms var(--ease);
}
.nav.is-scrolled:not(.is-dark) { background-color: var(--surface-2); border-bottom-color: var(--line); }

.brand { display: inline-flex; align-items: center; gap: 7.68px; margin-right: auto; }
.brand__mark { width: 32px; height: 32px; display: block; overflow: visible; }
.brand__box { stroke: transparent; stroke-width: 1.5; vector-effect: non-scaling-stroke; transition: stroke 600ms var(--ease); }
.brand__name {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .03em;
  line-height: 1;
  transition: color 600ms var(--ease);
}

.nav__links { display: flex; gap: 36px; font-weight: 500; font-size: 15px; }
.nav__links a { position: relative; color: var(--ink-2); padding: 6px 0; transition: color 500ms var(--ease); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 600ms var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav.is-dark .brand__name { color: var(--ink-inverse); }
.nav.is-dark .brand__box { stroke: var(--filete); }
.nav.is-dark .nav__links a { color: rgba(244, 243, 240, .8); }
.nav.is-dark .nav__links a:hover { color: var(--ink-inverse); }
/* Sin JS nadie cambia el menú al bajar: se queda claro y sólido, legible sobre cualquier fondo */
html:not(.js) .nav { background-color: var(--surface-2); border-bottom-color: var(--line); }
html:not(.js) .nav.is-dark .brand__name { color: var(--ink); }
html:not(.js) .nav.is-dark .brand__box { stroke: transparent; }
html:not(.js) .nav.is-dark .nav__links a { color: var(--ink-2); }
html:not(.js) .nav.is-dark .nav__links a:hover { color: var(--ink); }

.btn--nav { padding: 12px 22px; font-size: 15px; }

@media (max-width: 900px) { .nav__links { display: none; } }
@media (max-width: 720px) {
  .btn--nav { padding: 10px 16px; font-size: 14px; }
  .brand__mark { width: 28px; height: 28px; }
  .brand { gap: 6.72px; }
  .brand__name { font-size: 15px; }
}

/* ==========================================================================
   Hero · El ascenso
   ========================================================================== */
.hero { position: relative; background: var(--night); }

.hero__stage {
  position: relative;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: var(--night);
  color: var(--ink-inverse);
}

.hero__film, .hero__film > * { position: absolute; inset: 0; }
.hero__film img, .hero__film video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__film video { opacity: 0; transition: opacity 500ms var(--ease); }
.hero__film.has-video video { opacity: 1; }
.hero__end { display: none; }
.hero__veil { background: var(--night); opacity: .18; will-change: opacity; }

/* Frases: una palabra protagonista por frase */
.hero__copy {
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  top: calc(var(--nav-h) + env(safe-area-inset-top, 0px) + 6vh);
  display: grid;
  pointer-events: none;
}
.phrase {
  grid-area: 1 / 1;
  align-self: start;
  text-transform: uppercase;
  --rest: clamp(24px, 3.6vw, 56px);
  will-change: transform, opacity, filter;
}
.phrase__line { display: block; overflow: hidden; padding: .12em 0 .06em; margin: -.12em 0 -.06em; }
.phrase__in { display: inline-block; will-change: transform, opacity, filter; }
.rest {
  font-family: var(--font-display);
  font-stretch: 100%;
  font-weight: 400;
  font-size: var(--rest);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--ink-night);
}
.rest--punct { font-size: calc(var(--rest) * 1.6); line-height: .92; }
.key {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: calc(var(--rest) * 1.6);
  line-height: .92;
  letter-spacing: 0;
  color: var(--accent);
}

/* Cierre sobre la cima */
.hero__final {
  position: absolute;
  inset: var(--nav-h) var(--gutter) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-bottom: 32px;
}
.lockup { display: flex; align-items: center; gap: 15.36px; margin-bottom: clamp(24px, 5vh, 44px); }
.lockup__mark { width: 64px; height: 64px; display: block; flex: none; overflow: visible; }
.lockup__name {
  display: inline-flex;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: 34px;
  letter-spacing: .03em;
  line-height: 1;
}
.lockup__name .c { display: inline-block; overflow: hidden; padding: .06em 0; margin: -.06em 0; }
.lockup__name .c > i { display: inline-block; font-style: normal; }

.hero__title {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(40px, min(6.6vw, 11.5vh), 96px);
  line-height: .94;
  max-width: 13.5em;
  text-wrap: balance;
}
.hero__title .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .04em; margin-bottom: -.04em; }
.hero__title .w > i { display: inline-block; font-style: normal; }
.hero__title .accent { color: var(--accent); }

.hero__lede {
  margin-top: clamp(20px, 3.4vh, 32px);
  max-width: 640px;
  font-size: 21px;
  line-height: 1.5;
  color: var(--ink-night-2);
}
.hero__lede strong { color: var(--ink-inverse); }

.hero__ctas { margin-top: clamp(24px, 4.4vh, 40px); display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* Indicador "Desliza" */
.hero__hint {
  position: absolute;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: rgba(244, 243, 240, .6);
  padding-left: .28em;
}
.hero__hint-line { position: relative; display: block; width: 1px; height: 40px; background: rgba(244, 243, 240, .2); overflow: hidden; }
.hero__hint-line b {
  position: absolute;
  inset: 0;
  background: var(--ink-inverse);
  transform: scaleY(0);
  transform-origin: top;
  animation: hint 2.4s var(--ease) infinite;
}
@keyframes hint {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  55%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Antes de montar la animación: nada parpadea */
.hero-wait:not(.is-ready):not(.is-static) .phrase,
.hero-wait:not(.is-ready):not(.is-static) .hero__final { visibility: hidden; }

@media (max-width: 720px) {
  .hero__copy { top: calc(var(--nav-h) + env(safe-area-inset-top, 0px) + 28px); }
  .phrase { --rest: clamp(22px, 6.4vw, 30px); }
  .lockup__mark { width: 52px; height: 52px; }
  .lockup { gap: 12.48px; }
  .lockup__name { font-size: 27px; }
  .hero__title { font-size: clamp(36px, 11.6vw, 56px); }
  .hero__lede { font-size: 18px; }
  .hero__ctas { flex-direction: column; align-items: stretch; width: 100%; max-width: 360px; }
}

/* ==========================================================================
   Estado estático (prefers-reduced-motion o sin librerías)
   ========================================================================== */
.is-static .phrase, .is-static .hero__hint, .is-static .hero__poster { display: none; }
.is-static .hero__end { display: block; }
.is-static .hero__veil { opacity: .5; }
.is-static .hero__stage { height: auto; min-height: 100vh; min-height: 100svh; }
.is-static .hero__final {
  position: relative;
  inset: auto;
  min-height: 100vh;
  min-height: 100svh;
  padding: calc(var(--nav-h) + 32px) var(--gutter) 64px;
}

@media (prefers-reduced-motion: reduce) {
  .hero__hint-line b { animation: none; }
  .nav, .btn, .nav__links a, .nav__links a::after, .brand__name, .brand__box { transition: none; }
  .btn--primary::before, .btn__arrow { transition: none; }
}

/* ==========================================================================
   Transición hero → blanco roto (ligada al scroll: se recorre al bajar)
   ========================================================================== */
.transit {
  height: 16vh;
  background: linear-gradient(to bottom, #1A2231 0%, #2B3038 22%, #8F8E8C 62%, #E6E4E0 88%, var(--surface-2) 100%);
}
@media (max-width: 720px) {
  .transit { background: linear-gradient(to bottom, #131C31 0%, #262C37 22%, #8F8E8C 62%, #E6E4E0 88%, var(--surface-2) 100%); }
}

/* ==========================================================================
   2 · La primera impresión · 50 milisegundos
   ========================================================================== */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.impresion {
  background: var(--surface-2);
  color: var(--ink);
  padding: 24px var(--gutter) 44px;
}
.impresion__inner { max-width: 1120px; margin: 0 auto; }

.eyebrow {
  font-family: var(--font-text);
  font-weight: 500;
  font-size: 12px;
  line-height: 1;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--muted);
}

.impresion__head { max-width: 820px; }
.impresion .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .26em;
  color: var(--ink);
}
.impresion .eyebrow::before { content: ""; width: 40px; height: 2px; background: var(--accent); }
.impresion__title {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  text-transform: uppercase;
  --t: clamp(30px, 3.1vw, 46px);
}
.t-rest {
  font-family: var(--font-display);
  font-stretch: 100%;
  font-weight: 400;
  font-size: var(--t);
  line-height: 1.08;
  color: var(--ink);
}
.t-key {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: calc(var(--t) * 1.6);
  line-height: .92;
  color: var(--accent);
}
.impresion__lede { margin-top: 20px; max-width: 520px; font-size: 21px; line-height: 1.5; color: var(--ink-2); }

/* El marco negro */
.flash {
  margin: clamp(36px, 4vw, 48px) auto 0;
  max-width: min(720px, calc((100svh - 220px) * 1.6));
  border-radius: var(--r-box);
  background: var(--surface-inverse);
  overflow: hidden;
}
.flash__bar { height: 40px; display: flex; align-items: center; gap: 7px; padding: 0 18px; }
.flash__bar i { width: 9px; height: 9px; border-radius: 50%; background: #3A3A3A; }
.flash__stage {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--surface-inverse);
  color: var(--ink-inverse);
  container-type: inline-size;
  overflow: hidden;
}

/* La web de NORTE (aparece 50 ms) */
.flash__site { position: absolute; inset: 0; opacity: 0; visibility: hidden; }
.flash__site.is-on { opacity: 1; visibility: visible; }
.flash__site.is-fading { opacity: 0; filter: blur(6px) brightness(1.25); transition: opacity 300ms ease-out, filter 300ms ease-out; }
.flash__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; display: block; }
.flash__veil { position: absolute; inset: 0; background: rgba(10, 10, 11, .22); }
.norte { position: absolute; inset: 0; color: #F4F3F0; }
.norte__nav { position: absolute; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 3cqw 4cqw; font-family: var(--font-text); font-size: 1.3cqw; letter-spacing: .2em; text-transform: uppercase; }
.norte__menu { padding: .8cqw 1.8cqw; border: 1px solid rgba(244, 243, 240, .6); border-radius: 999px; letter-spacing: .1em; }
.norte__name { position: absolute; left: 4cqw; bottom: 5cqw; }
.norte__name b { display: block; font-family: var(--font-display); font-stretch: 125%; font-weight: 800; font-size: 11cqw; line-height: .9; letter-spacing: .02em; }
.norte__name small { display: block; margin-top: 1.4cqw; font-family: var(--font-text); font-size: 1.5cqw; letter-spacing: .3em; text-transform: uppercase; }

/* Durante el parpadeo, el marco solo enseña la web: nada encima */
.flash[data-state="flash"] .flash__panel { transition: none; opacity: 0; visibility: hidden; }

/* Paneles del marco */
.flash__panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 24px;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms var(--ease), visibility 0s linear 300ms;
}
.flash[data-state="idle"] .flash__panel--idle,
.flash[data-state="ask"] .flash__panel--ask {
  opacity: 1;
  visibility: visible;
  transition: opacity 300ms var(--ease), visibility 0s;
}
.flash__say {
  font-family: var(--font-display);
  font-stretch: 100%;
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.2;
  max-width: 18em;
  text-wrap: balance;
  color: var(--ink-inverse);
}
.flash__answers { display: flex; gap: 12px; }
.btn--light { min-width: 120px; background: transparent; border-color: rgba(244, 243, 240, .45); color: var(--ink-inverse); }
.btn--light:hover { border-color: var(--ink-inverse); }
.btn--light[aria-pressed="true"] { background: var(--ink-inverse); border-color: var(--ink-inverse); color: var(--surface-inverse); }
.flash__again {
  appearance: none;
  border: 0;
  background: none;
  padding: 6px 2px;
  font: 500 14px/1 var(--font-text);
  color: rgba(244, 243, 240, .6);
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
  visibility: hidden;
}
.flash.is-answered .flash__again { visibility: visible; }
.flash__again:hover { color: var(--ink-inverse); }
.flash__note {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(10, 10, 11, .8);
  font-size: 13px;
  color: var(--ink-inverse);
  white-space: nowrap;
}

/* Revelación */
.revela {
  margin: 32px auto 0;
  max-width: 1000px;
  text-align: center;
}
.revela.is-pending:not(.is-in) { opacity: 0; visibility: hidden; transform: translateY(24px); }
.revela.is-in { opacity: 1; visibility: visible; transform: none; transition: opacity 600ms var(--ease), transform 600ms var(--ease), visibility 0s; }
.revela__t {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  text-transform: uppercase;
  line-height: .95;
}
.revela__a { font-size: clamp(24px, 2.8vw, 38px); color: var(--ink); }
.revela__b { margin: .12em 0 .14em; font-size: clamp(40px, 6vw, 84px); line-height: .9; }
.revela__en { font-size: .4em; vertical-align: .55em; color: var(--ink); }
.revela__ms { color: var(--accent); }
.revela__p { margin: 20px auto 0; max-width: 620px; font-size: 19px; line-height: 1.5; color: var(--ink-2); }
.revela__p strong { color: var(--ink); }
.revela__src { margin: 16px auto 0; max-width: 760px; font-size: 13px; line-height: 1.5; color: var(--muted); }

/* Aparición suave (600 ms). Mejora progresiva: solo se oculta lo que main.js marca
   como pendiente (.is-pending, por debajo de la pantalla); sin JS todo se ve. */
.reveal.is-pending:not(.is-in) { opacity: 0; transform: translateY(24px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity 600ms var(--ease), transform 600ms var(--ease); }

@media (max-width: 720px) {
  .impresion__title { --t: clamp(24px, 7vw, 30px); }
  .impresion__lede, .revela__p { font-size: 18px; }
  .flash { border-radius: 22px; }
  .flash__stage { aspect-ratio: 9 / 16; }
  .flash__img { object-position: 68% 50%; }
  .norte__nav { padding: 5cqw 6cqw; font-size: 3cqw; }
  .norte__brand { display: none; }
  .norte__nav { justify-content: flex-end; }
  .norte__menu { padding: 2cqw 3.6cqw; }
  .norte__name { left: 6cqw; bottom: 9cqw; }
  .norte__name b { font-size: 17cqw; }
  .norte__name small { margin-top: 3cqw; font-size: 3.4cqw; letter-spacing: .24em; }
  .flash__say { font-size: 24px; }
  .flash__answers { width: 100%; max-width: 280px; }
  .flash__answers .btn { flex: 1; min-width: 0; }
  .flash__note { white-space: normal; width: calc(100% - 32px); text-align: center; border-radius: 16px; }
  .revela__b { font-size: 8.6vw; }
  .revela__a { font-size: 6.4vw; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal.is-pending:not(.is-in) { opacity: 1; transform: none; }
  .revela.is-in, .flash__panel, .flash__site.is-fading { transition: none; }
}

/* ==========================================================================
   3 · Método XCENDE · tres ascensos con demostración en vivo
   ========================================================================== */
.metodo {
  background: var(--surface-2);
  color: var(--ink);
  padding: 72px var(--gutter) var(--section);
  border-top: 1px solid var(--line);
}
.metodo__inner { max-width: 1200px; margin: 0 auto; }

.metodo .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .26em;
  color: var(--ink);
}
.metodo .eyebrow::before { content: ""; width: 40px; height: 2px; background: var(--accent); }

.metodo__head { max-width: 860px; }
.metodo__title {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  text-transform: uppercase;
  --t: clamp(30px, 3.4vw, 52px);
}
.metodo__title .t-key { margin-top: .06em; }
.metodo__lede { margin-top: 20px; max-width: 520px; font-size: 21px; line-height: 1.5; color: var(--ink-2); }

/* Filas */
.pasos { list-style: none; margin: 56px 0 0; padding: 0; }
.paso {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-items: center;
  gap: clamp(32px, 5vw, 80px);
}
.paso--rev .paso__txt { order: 2; }
.paso--rev .demo { order: 1; }

.paso__n {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: clamp(56px, 6vw, 88px);
  line-height: .85;
  color: #D9D6CF;
}
.paso__tag { margin-top: 18px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.paso__label {
  font-family: var(--font-text);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--accent);
}
.paso__sub { font-size: 14px; color: var(--muted); }
.paso__title {
  margin-top: 12px;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1;
  text-transform: uppercase;
  text-wrap: balance;
}
.paso__p { margin-top: 14px; max-width: 30em; font-size: 17px; line-height: 1.55; color: var(--ink-2); }
.pills { list-style: none; margin: 20px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.pills li { padding: 7px 14px; border: 1px solid var(--line); border-radius: var(--r-pill); font-size: 13px; line-height: 1.2; color: var(--ink-2); background: var(--surface); }

/* La línea de la marca, que sube un poco más en cada paso */
.subida { display: block; padding: 8px 0; }
.subida svg { display: block; width: 100%; height: auto; max-height: 80px; overflow: visible; }
.subida--3 svg { max-height: 120px; }
.subida polyline { fill: none; stroke: var(--line-strong); stroke-width: 1.5; vector-effect: non-scaling-stroke; stroke-dasharray: 1; stroke-dashoffset: 0; }
.subida.is-pending:not(.is-in) polyline { stroke-dashoffset: 1; }
.subida--3 .subida__up, .subida--3 .subida__head { stroke: var(--accent); stroke-width: 2.5; }
.subida--3 .subida__head { stroke-linecap: square; }
.subida.is-in polyline { stroke-dashoffset: 0; transition: stroke-dashoffset 600ms var(--ease); }
.subida.is-in .subida__up { transition-delay: 300ms; }
.subida.is-in .subida__head { transition-delay: 560ms; }

/* Marco de navegador de las demos */
.demo {
  margin: 0;
  width: 100%;
  max-width: 560px;
  justify-self: center;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--surface);
  overflow: hidden;
}
.demo__bar { height: 32px; display: flex; align-items: center; gap: 6px; padding: 0 14px; border-bottom: 1px solid var(--line); }
.demo__bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.demo__stage { position: relative; aspect-ratio: 16 / 10; overflow: hidden; container-type: inline-size; background: var(--surface-inverse); }
.demo:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Demo 01 · Impacto: el vuelo */
.demo__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.demo1__title {
  position: absolute;
  left: 6cqw;
  top: 7cqw;
  font-family: var(--font-display);
  font-stretch: 100%;
  font-weight: 400;
  font-size: 4.4cqw;
  line-height: 1.05;
  text-transform: uppercase;
  color: var(--ink-inverse);
  transition: opacity 600ms var(--ease), transform 600ms var(--ease);
}
.demo.is-armed:not(.is-on) .demo1__title { opacity: 0; transform: translateY(10px); }
.demo1__title span { display: block; font-stretch: 125%; font-weight: 800; font-size: 1.6em; color: #FFFFFF; }
.demo1__veil { position: absolute; inset: 0; background: rgba(10, 10, 11, .28); }
.demo.is-on .demo1__title { transition-delay: 500ms; }

/* Demo 02 · Deseo: la web de NORTE se desplaza sola */
.mini { position: absolute; inset: 0; overflow: hidden; background: #0B0B0C; color: #F4F3F0; }
.mini__track { will-change: transform; }
.demo.is-on .mini__track { animation: miniScroll 14s cubic-bezier(.45, 0, .55, 1) infinite; }
.demo--deseo:hover .mini__track, .demo--deseo:focus-within .mini__track { animation-play-state: paused; }
@keyframes miniScroll {
  0%, 12%   { transform: translateY(0); }
  38%, 52%  { transform: translateY(-62.5cqw); }
  76%, 88%  { transform: translateY(-125cqw); }
  100%      { transform: translateY(0); }
}
.mini__hero { position: relative; height: 62.5cqw; }
.mini__hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.mini__hero::after { content: ""; position: absolute; inset: 0; background: rgba(10, 10, 11, .22); }
.mini__nav { position: absolute; z-index: 1; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 3.4cqw 4.4cqw; font-size: 1.8cqw; letter-spacing: .2em; text-transform: uppercase; }
.mini__pill { padding: .9cqw 2cqw; border: 1px solid rgba(244, 243, 240, .6); border-radius: 999px; letter-spacing: .1em; }
.mini__name { position: absolute; z-index: 1; left: 4.4cqw; bottom: 5cqw; }
.mini__name b { display: block; font-family: var(--font-display); font-stretch: 125%; font-weight: 800; font-size: 12cqw; line-height: .9; }
.mini__name small { display: block; margin-top: 1.4cqw; font-size: 1.9cqw; letter-spacing: .3em; text-transform: uppercase; }
.mini__grid { height: 62.5cqw; padding: 6cqw 4.4cqw; background: #F4F3F0; color: #111111; }
.mini__k { font-size: 1.8cqw; letter-spacing: .3em; text-transform: uppercase; color: #6E6B65; }
.mini__cards { margin-top: 3cqw; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.4cqw; }
.mini__cards figure { margin: 0; }
.mini__cards img { display: block; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 1.6cqw; }
.mini__cards figcaption { margin-top: 1.4cqw; font-size: 1.8cqw; color: #45433F; }
.mini__quote { height: 62.5cqw; padding: 0 8cqw; display: flex; flex-direction: column; justify-content: center; background: #0B0B0C; }
.mini__quote p { font-family: var(--font-display); font-stretch: 100%; font-size: 4.2cqw; line-height: 1.2; }
.mini__quote small { margin-top: 3cqw; font-size: 1.8cqw; letter-spacing: .3em; text-transform: uppercase; color: rgba(244, 243, 240, .6); }

/* Demo 03 · Acción: el botón se pulsa y llega la solicitud */
.cta-demo {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #F4F3F0;
  color: #111111;
  padding: 6cqw;
}
.cta-demo__k { font-size: 1.9cqw; letter-spacing: .28em; text-transform: uppercase; color: #6E6B65; }
.cta-demo__h { margin-top: 2.4cqw; font-family: var(--font-display); font-stretch: 125%; font-weight: 800; font-size: 4.6cqw; line-height: 1; text-transform: uppercase; max-width: 15em; text-wrap: balance; }
.cta-demo__btn {
  position: relative;
  margin-top: 5cqw;
  display: inline-flex;
  align-items: center;
  gap: 1.6cqw;
  padding: 2.6cqw 4.4cqw;
  border: 1px solid #111111;
  border-radius: 999px;
  overflow: hidden;
  font-weight: 600;
  font-size: 2.6cqw;
  color: #111111;
}
.cta-demo__fill { position: absolute; inset: 0; background: var(--accent); transform: scaleY(0); transform-origin: bottom; }
.cta-demo__label, .cta-demo__arrow { position: relative; }
.cta-demo__arrow { display: inline-block; }
.cta-demo__toast {
  position: absolute;
  top: 5cqw;
  right: 5cqw;
  display: inline-flex;
  align-items: center;
  gap: 1.6cqw;
  padding: 2cqw 3cqw;
  border: 1px solid #E4E2DD;
  border-radius: 999px;
  background: #FFFFFF;
  font-size: 2.1cqw;
  color: #45433F;
  opacity: 0;
  transform: translateX(14cqw);
}
.cta-demo__toast b { font-weight: 600; color: #111111; }
.cta-demo__toast i { width: 1.6cqw; height: 1.6cqw; border-radius: 50%; background: var(--accent); }

/* Secuencia de 4 s: llenado → la flecha sube → pulsación → llega la solicitud */
.demo--accion.is-playing .cta-demo__fill { animation: ctaFill 4s var(--ease) both; }
.demo--accion.is-playing .cta-demo__btn { animation: ctaText 4s var(--ease) both; }
.demo--accion.is-playing .cta-demo__arrow { animation: ctaArrow 4s var(--ease) both; }
.demo--accion.is-playing .cta-demo__toast { animation: ctaToast 4s var(--ease) both; }
@keyframes ctaFill  { 0% { transform: scaleY(0); } 18%, 100% { transform: scaleY(1); } }
@keyframes ctaText  { 0% { color: #111111; transform: scale(1); } 14% { color: #FFFFFF; } 30% { transform: scale(1); } 34% { transform: scale(.95); } 40%, 100% { color: #FFFFFF; transform: scale(1); border-color: var(--accent); } }
@keyframes ctaArrow { 0%, 16% { transform: translate(0, 0); } 28%, 100% { transform: translate(.3em, -.3em); } }
@keyframes ctaToast { 0%, 40% { opacity: 0; transform: translateX(14cqw); } 52%, 92% { opacity: 1; transform: none; } 100% { opacity: 0; transform: none; } }

/* Remate del bloque */
.metodo__cierre { margin: 32px auto 0; max-width: 640px; text-align: center; font-size: 21px; line-height: 1.5; color: var(--ink-2); }
.metodo__cierre strong { color: var(--ink); }

@media (max-width: 900px) {
  .paso, .paso--rev { grid-template-columns: 1fr; gap: 28px; }
  .paso--rev .paso__txt { order: 0; }
  .paso--rev .demo { order: 0; }
  .demo { justify-self: stretch; max-width: none; }
}
@media (max-width: 720px) {
  .metodo { padding-top: 56px; }
  .metodo__title { --t: clamp(24px, 7vw, 30px); }
  .metodo__lede, .metodo__cierre { font-size: 18px; }
  .pasos { margin-top: 40px; }
  .paso__p { font-size: 16px; }
}

/* Movimiento reducido: un fotograma fijo de cada demo */
@media (prefers-reduced-motion: reduce) {
  .demo.is-on .mini__track, .demo--accion.is-playing * { animation: none !important; }
  .demo1__title { opacity: 1; transform: none; transition: none; }
  .subida polyline { stroke-dashoffset: 0; transition: none; }
  .is-static-demo .cta-demo__fill, .demo--accion .cta-demo__fill { transform: scaleY(1); }
  .demo--accion .cta-demo__btn { color: #FFFFFF; border-color: var(--accent); }
  .demo--accion .cta-demo__arrow { transform: translate(.3em, -.3em); }
  .demo--accion .cta-demo__toast { opacity: 1; transform: none; }
}

/* ==========================================================================
   4 · Que elijan tu empresa · comparación, cómo trabajamos, dudas y contacto
   ========================================================================== */
.cierre {
  background: var(--surface-2);
  color: var(--ink);
  padding: 72px var(--gutter) var(--section);
  border-top: 1px solid var(--line);
}
.cierre__inner { max-width: 1200px; margin: 0 auto; }

.cierre .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .26em;
  color: var(--ink);
}
.cierre .eyebrow::before { content: ""; width: 40px; height: 2px; background: var(--accent); }
.cierre .eyebrow--sm { font-size: 12px; font-weight: 500; letter-spacing: .28em; color: var(--muted); }
.cierre .eyebrow--sm::before { width: 24px; height: 1px; background: var(--line-strong); }

/* Cabecera + comparación */
.elige {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
}
.cierre__title {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  text-transform: uppercase;
  --t: clamp(26px, 2.2vw, 34px);
}
.cierre__title .t-key { margin-top: .06em; white-space: nowrap; }
.elige__p { margin-top: 20px; max-width: 30em; font-size: 18px; line-height: 1.55; color: var(--ink-2); }
.elige__p strong { color: var(--ink); }

.duelo { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: end; gap: 20px; }
.duelo__item { margin: 0; min-width: 0; }
.duelo__frame { max-width: none; }
.duelo__stage { position: relative; aspect-ratio: 16 / 10; overflow: hidden; container-type: inline-size; }
.duelo__cap { margin-top: 12px; font-size: 13px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); text-align: center; }
.duelo__cap--tuya { color: var(--ink); font-weight: 600; }

/* La web genérica, en grises */
.gris { background: #E3E1DD; display: grid; grid-template-rows: auto 1fr auto; gap: 4cqw; padding: 4cqw 5cqw 5cqw; }
.gris__nav { display: flex; align-items: center; gap: 3cqw; }
.gris__nav b { width: 14cqw; height: 3.4cqw; border-radius: 1cqw; background: #A9A6A0; margin-right: auto; }
.gris__nav span { width: 8cqw; height: 2cqw; border-radius: 1cqw; background: #BFBCB6; }
.gris__img { min-height: 20cqw; border-radius: 2cqw; background: #C6C3BD; }
.gris__txt { display: grid; gap: 2cqw; justify-items: start; }
.gris__txt span { height: 2.4cqw; width: 70%; border-radius: 1cqw; background: #B5B2AC; }
.gris__txt span:nth-child(2) { width: 55%; }
.gris__txt span:nth-child(3) { width: 40%; }
.gris__txt i { margin-top: 1.5cqw; width: 22cqw; height: 5.5cqw; border-radius: 999px; background: #9E9B95; }

/* La web de tu empresa */
.tuya { background: var(--surface-inverse); }
.tuya img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.tuya::after { content: ""; position: absolute; inset: 0; background: rgba(10, 10, 11, .3); }
.tuya__nav, .tuya__name { position: absolute; z-index: 1; color: var(--ink-inverse); }
.tuya__nav { top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 4cqw 5cqw; font-size: 2.4cqw; letter-spacing: .22em; text-transform: uppercase; }
.tuya__pill { padding: .8cqw 2cqw; border: 1px solid rgba(244, 243, 240, .6); border-radius: 999px; letter-spacing: .12em; }
.tuya__name { left: 5cqw; bottom: 6cqw; font-family: var(--font-display); font-stretch: 125%; font-weight: 800; font-size: 8.6cqw; line-height: .9; text-transform: uppercase; letter-spacing: .01em; }

.duelo__item--otra .duelo__frame { opacity: .5; }
.duelo__item--tuya .duelo__frame { border: 2px solid var(--accent); }
.duelo__frame, .duelo__item--tuya { transition: opacity 600ms var(--ease), transform 600ms var(--ease), filter 600ms var(--ease); }
.duelo.is-in .duelo__item--otra .duelo__frame { opacity: .3; filter: grayscale(1); }
.duelo.is-in .duelo__item--tuya { transform: translateY(-12px) scale(1.03); }

/* Frase de marca con la línea del logo */
.lema { margin: 56px auto 0; text-align: center; }
.lema__txt {
  font-family: var(--font-display);
  font-stretch: 100%;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.2;
  text-transform: uppercase;
  text-wrap: balance;
}
.lema__txt strong { font-stretch: 125%; font-weight: 800; }
.lema__line { display: block; width: min(300px, 70%); height: auto; margin: 18px auto 0; overflow: visible; }
.lema__line polyline { fill: none; stroke-width: 3; stroke-linejoin: miter; stroke-dasharray: 1; stroke-dashoffset: 0; }   /* recta y subida: una sola línea con unión en inglete; el tramo recto en tinta va recortado hasta la bisectriz */
.lema.is-pending:not(.is-in) .lema__line polyline { stroke-dashoffset: 1; }
.lema__flat { stroke: var(--ink); }
.lema__up, .lema__head { stroke: var(--accent); }
.lema__head { stroke-linecap: square; }
.lema.is-in polyline { stroke-dashoffset: 0; transition: stroke-dashoffset 800ms cubic-bezier(.45,0,.55,1) 200ms; }
.lema.is-in .lema__head { transition-delay: 950ms; transition-duration: 250ms; transition-timing-function: var(--ease); }

/* Cómo trabajamos: una escalera que asciende */
.traje { margin-top: 96px; }
/* Escalera: 4 escalones en diagonal ascendente. La línea (bordes de los escalones)
   se dibuja con el scroll a través de --p (0–1, lo pone main.js; sin JS vale 1 y se ve entera). */
.escalera {
  --s: 56px; --g: 16px; --sobre: 28px;
  list-style: none; margin: 28px 0 0; padding: calc(var(--sobre) + 48px) 0 0;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.28fr) minmax(0, 1fr); gap: var(--g);
}
.escalon {
  --i: calc(var(--k) / 2);
  --tramo: clamp(0, calc(var(--p, 1) * 8 - var(--k)), 1);
  --sube: clamp(0, calc(var(--p, 1) * 8 - var(--k) - 1), 1);
  position: relative; min-width: 0;
  margin-top: calc((3 - var(--i)) * var(--s)); margin-bottom: calc(var(--i) * var(--s));
  padding: 32px 24px 40px; background: var(--surface); container-type: inline-size; border: 1px solid var(--line); border-radius: var(--r-card);
}
.escalon__linea { position: absolute; top: calc(-1 * var(--sobre)); left: calc(var(--g) / -2); width: calc(100% + var(--g)); height: 1.5px; background: var(--ink); transform-origin: left; transform: scaleX(var(--tramo)); }
.escalon:first-child .escalon__linea { left: 0; width: calc(100% + var(--g) / 2); }
.escalon__linea::after { content: ""; position: absolute; right: 0; bottom: 0; width: 1.5px; height: var(--s); background: var(--ink); transform-origin: bottom; transform: scaleY(var(--sube)); }
.escalon--cima .escalon__linea { width: calc(100% + var(--g) / 2 - 42px); background: var(--accent); }
.escalon--cima .escalon__linea::after { content: none; }
.escalon__flecha { position: absolute; right: 0; top: calc(-1 * var(--sobre) - 42px); width: 44px; height: 44px; overflow: visible; }
.escalon__flecha polyline { fill: none; stroke: var(--accent); stroke-width: 2; stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--sube)); }
.escalon__n { font-family: var(--font-display); font-stretch: 125%; font-weight: 800; font-size: 64px; line-height: .9; color: var(--line); }
.escalon--cima .escalon__n { color: var(--accent); }
.escalon__t { margin-top: 32px; font-family: var(--font-display); font-stretch: 125%; font-weight: 800; font-size: clamp(22px, 2.15vw, 32px); line-height: 1.02; text-transform: uppercase; text-wrap: balance; }
.escalon__p { margin-top: 16px; font-size: 17px; line-height: 1.55; color: var(--ink-2); }
.escalon.is-in { transition-delay: calc(var(--k) * 40ms); }
/* Hasta 1 100 px: una columna, con la línea a la izquierda */
@media (max-width: 1100px) {
  .escalera { margin-inline: 0; max-width: 680px; grid-template-columns: 1fr; padding: 0 0 0 24px; }
  .escalon { margin: 0; padding: 24px 22px 28px; --tramo: clamp(0, calc((var(--p, 1) * 8 - var(--k)) / 2), 1); }
  .escalon .escalon__linea, .escalon:first-child .escalon__linea { top: 0; left: -20px; width: 1.5px; height: calc(100% + var(--g)); transform-origin: top; transform: scaleY(var(--tramo)); }
  .escalon__linea::after { content: none; }
  .escalon--cima .escalon__linea { width: 1.5px; height: calc(100% + 30px); }
  .escalon__flecha { right: auto; left: -21px; top: calc(100% + 4px); width: 26px; height: 26px; }
  .escalon__flecha polyline { stroke-width: 3.4; stroke-dashoffset: calc(1 - clamp(0, calc(var(--p, 1) * 8 - 7.6) * 2.5, 1)); }
  .escalon__n { font-size: 48px; }
  .escalon__t { margin-top: 20px; font-size: min(32px, 100cqi / 9.7); }
  .escalon__p { font-size: 16px; }
  .escalon.is-in { transition-delay: 0ms; }
  .traje .traje__plazo { margin-top: 56px; }
}
.traje__plazo { margin-top: 40px; font-size: 17px; color: var(--ink-2); }
.traje__plazo strong { color: var(--ink); }

/* Dudas + contacto */
.final {
  margin-top: 72px;
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  grid-template-areas: "head form" "dudas form";
  grid-template-rows: auto 1fr;
  align-items: start;
  gap: 40px clamp(32px, 5vw, 72px);
}
.contacto__head { grid-area: head; scroll-margin-top: calc(var(--nav-h) + 24px); }
.dudas { grid-area: dudas; }
.dudas__list { margin-top: 20px; border-top: 1px solid var(--line); }
.duda { border-bottom: 1px solid var(--line); }
.duda summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 14px 0;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: 18px;
  line-height: 1.15;
  text-transform: uppercase;
  cursor: pointer;
}
.duda summary::-webkit-details-marker { display: none; }
.duda summary::after {
  content: "";
  flex: none;
  width: 32px; height: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background:
    linear-gradient(var(--ink), var(--ink)) center / 11px 1.5px no-repeat,
    linear-gradient(var(--ink), var(--ink)) center / 1.5px 11px no-repeat;
  transition: transform 500ms var(--ease), background-color 500ms var(--ease);
}
.duda[open] summary::after { transform: rotate(45deg); }
.duda summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.duda__a { padding: 0 48px 22px 0; font-size: 16px; line-height: 1.55; color: var(--ink-2); }
.duda__a strong { color: var(--ink); }
.duda[open] .duda__a { animation: dudaIn 500ms var(--ease) both; }
@keyframes dudaIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.contacto {
  grid-area: form;
  padding: clamp(24px, 3.4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--r-box);
  background: var(--surface);
}
.contacto__title {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: clamp(32px, 3.4vw, 48px);
  line-height: .95;
  text-transform: uppercase;
}
.contacto__p { margin-top: 12px; font-size: 18px; line-height: 1.5; color: var(--ink-2); }
.contacto__p strong { color: var(--ink); }
.contacto__wa { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.contacto__wa a { color: var(--ink); text-decoration: underline; text-underline-offset: .2em; display: inline-block; padding: 12px 0; }

/* Formulario seguro (componente de ~/webs/_plantillas, con la piel de XCENDE) */
.sf { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2px 16px; }
.sf__field { display: grid; gap: 6px; min-width: 0; align-content: start; }
.sf__field--wide, .sf__legal, .sf__send { grid-column: 1 / -1; }
.sf__field--2 { grid-column: span 2; }
.sf label { font-size: 14px; font-weight: 600; color: var(--ink); }
.sf__opt { font-weight: 400; color: var(--muted); }
.sf input[type="text"], .sf input[type="email"], .sf input[type="tel"], .sf textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  font: 16px/1.5 var(--font-text);
  color: var(--ink);
  background: var(--surface);
  transition: border-color 500ms var(--ease);
}
.sf textarea { resize: vertical; min-height: 96px; }
.sf input::placeholder { color: var(--muted); }
.sf input:hover, .sf textarea:hover { border-color: var(--ink-2); }
.sf [aria-invalid="true"] { border-color: #B3261E; }
.sf__err { min-height: 1.3em; margin: 0; font-size: 13px; line-height: 1.3; color: #B3261E; }
.cierre [hidden] { display: none !important; }
.sf__hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.sf__legal { margin-top: 6px; }
.sf__info { margin: 0 0 6px; font-size: 12.5px; line-height: 1.55; color: var(--ink-2); }
.sf__check { display: flex; gap: 10px; align-items: flex-start; min-height: 44px; padding: 10px 0 0; font-size: 15px; font-weight: 400 !important; cursor: pointer; }
.sf__check input { width: 20px; height: 20px; margin: 1px 0 0; flex: none; accent-color: var(--accent); }
.sf__check--main { font-weight: 600 !important; color: var(--ink); }   /* privacidad + mayor de 14: obligatoria y destacada */
.sf a { color: inherit; text-decoration: underline; text-underline-offset: .2em; }
.sf__send { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 8px; }
.sf__btn { border: 0; cursor: pointer; min-height: 52px; }
.sf__btn[disabled] { opacity: .6; cursor: progress; }
.sf__status { margin: 0; font-size: 15px; color: var(--ink-2); }
.sf__ok { padding: 28px; border-radius: var(--r-card); background: var(--surface-2); display: flex; align-items: center; gap: 20px; font-size: 18px; line-height: 1.5; }
.sf__ok:focus { outline: none; }
.sf__ok svg { width: 64px; height: 64px; flex: none; overflow: visible; color: var(--ink); }
/* El gesto del logo al aparecer (600 ms): se dibuja el tramo recto, sube la diagonal y termina en la punta */
.sf__ok:not([hidden]) .ok-linea { stroke-dasharray: 1; animation: ok-traza 470ms cubic-bezier(.45,0,.55,1) both; }
.sf__ok:not([hidden]) .ok-punta { stroke-dasharray: 1; animation: ok-traza 130ms var(--ease) 470ms both; }
@keyframes ok-traza { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }

@media (max-width: 900px) {
  .elige { grid-template-columns: 1fr; }
  .final { grid-template-columns: 1fr; grid-template-areas: "dudas" "head" "form"; gap: 32px; }
  .sf { grid-template-columns: 1fr 1fr; }
  .duelo { max-width: 640px; }
}
@media (max-width: 720px) {
  .cierre { padding-top: 56px; }
  .cierre__title { --t: clamp(22px, 6.2vw, 26px); }
  .cierre__title .t-key { white-space: normal; }
  .elige__p { font-size: 17px; }
  .duelo { grid-template-columns: 1fr; gap: 16px; }
  .duelo__item { width: 78%; }
  .duelo__item--tuya { justify-self: end; }
  .lema { margin-top: 56px; }
  .traje { margin-top: 64px; }
  .final { margin-top: 64px; }
  .duda summary { font-size: 16px; }
  .duda__a { padding-right: 0; }
  .sf { grid-template-columns: 1fr; }
  .sf__field--2 { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .duelo__frame, .duelo__item--tuya, .lema polyline { transition: none !important; }
  .duelo.is-in .duelo__item--tuya { transform: none; }
  .lema__line polyline { stroke-dashoffset: 0; }
  .sf__ok .ok-linea, .sf__ok .ok-punta { animation: none !important; stroke-dashoffset: 0; }
  .duda[open] .duda__a { animation: none; }
}

/* ==========================================================================
   Orientación · impacto sin laberinto
   ========================================================================== */
/* Barra de progreso de lectura */
.progreso {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  height: calc(2px + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  pointer-events: none;
}
.progreso i { display: block; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; will-change: transform; }

/* Destinos de los saltos: el apartado queda justo bajo el menú */
.impresion, .metodo, .cierre { scroll-margin-top: var(--nav-h); }
.escalera { scroll-margin-top: calc(var(--nav-h) + 96px); }

/* Índice lateral de apartados (solo escritorio) */
.indice {
  position: fixed;
  right: 20px;
  top: 50%;
  z-index: 40;
  transform: translateY(-50%);
  --i-ink: var(--ink);
  --i-mute: var(--line-strong);
}
.indice.is-dark { --i-ink: var(--ink-inverse); --i-mute: rgba(244, 243, 240, .45); }
.indice ol { list-style: none; margin: 0; padding: 0; display: grid; }
.indice a {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-height: 44px;
  padding: 0 4px;
  color: var(--i-mute);
  transition: color 500ms var(--ease);
}
.indice a::after { content: ""; width: 14px; height: 1px; background: currentColor; transition: width 500ms var(--ease); }
.indice span {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(6px);
  transition: opacity 400ms var(--ease), transform 400ms var(--ease);
}
.indice a:hover, .indice a:focus-visible, .indice a[aria-current="true"] { color: var(--i-ink); }
.indice a[aria-current="true"]::after { width: 28px; height: 2px; }
.indice:hover span, .indice a:focus-visible span { opacity: 1; transform: none; }
.indice a:focus-visible { outline-offset: 0; }

/* Botón flotante de contacto (solo móvil, después del hero) */
.flota { display: none; }

@media (max-width: 1100px) { .indice { display: none; } }
@media (max-width: 720px) {
  .flota {
    display: inline-flex;
    position: fixed;
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    z-index: 45;
    min-height: 52px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: opacity 400ms var(--ease), transform 400ms var(--ease), visibility 0s linear 400ms, background-color 500ms var(--ease);
  }
  .flota.is-on { opacity: 1; visibility: visible; transform: none; transition: opacity 400ms var(--ease), transform 400ms var(--ease), visibility 0s, background-color 500ms var(--ease); }
}

@media (prefers-reduced-motion: reduce) {
  .indice a, .indice a::after, .indice span, .flota, .flota.is-on { transition: none; }
}

/* ==========================================================================
   Detalles de nivel · titulares por líneas, cortina y zoom lento
   ========================================================================== */
/* Titulares de los bloques 2 a 4: cada línea sube desde su máscara (main.js añade .ln__mask).
   La máscara deja .35em arriba y .3em abajo para mayúsculas, acentos y el punto; el padding
   y el margen negativo se anulan, así que la maqueta no se mueve. */
.ln__mask { display: block; overflow: hidden; padding: .35em .15em .3em; margin: -.35em -.15em -.3em; }
.ln__in { display: inline-block; transition: transform 480ms var(--ease) var(--d, 0ms); }
.is-pending:not(.is-in) .ln__in { transform: translateY(150%); }

/* Apertura en cortina al entrar en pantalla (de abajo arriba): una tapa del color del fondo
   que se recoge hacia arriba. Solo existe mientras el elemento está pendiente; el elemento
   en sí nunca se recorta ni se oculta. */
.flash, .demo { position: relative; }
.flash::after, .demo::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  background: var(--surface-2);
  transform: scaleY(0);
  transform-origin: top;
  pointer-events: none;
}
.flash.is-pending:not(.is-in)::after,
.paso.is-pending:not(.is-in) .demo::after,
.duelo.is-pending:not(.is-in) .duelo__frame::after { transform: scaleY(1); }
.flash.is-in::after,
.paso.is-in .demo::after,
.duelo.is-in .duelo__frame::after { transition: transform 600ms var(--ease); }

/* Zoom lento al pasar el ratón (1.04) */
.flash__img, .demo__video, .mini, .cta-demo, .tuya img { transition: transform 600ms var(--ease); }
.flash:hover .flash__img,
.demo:hover .demo__video, .demo:hover .mini, .demo:hover .cta-demo,
.duelo__item--tuya:hover .tuya img { transform: scale(1.04); }

@media (prefers-reduced-motion: reduce) {
  .ln__in { transform: none !important; transition: none !important; }
  .flash::after, .demo::after { display: none; }
  .flash__img, .demo__video, .mini, .cta-demo, .tuya img { transition: none; transform: none !important; }
}