/* ════════════════════════════════════════════════════════════════════
   Landing Empaque Profesional · HGR · B&N
   Fase 2-3: estructura + contenido estático (sin motion)
   ════════════════════════════════════════════════════════════════════ */

/* ─── TOKENS ───────────────────────────────────────── */
:root{
  /* COLOR — B&N estructural; rojo solo en el isotipo del logo */
  --ink:           #0A0A0A;
  --ink-2:         #1F1F23;
  --ink-30:        rgba(10,10,10,.30);
  --ink-50:        rgba(10,10,10,.50);
  --ink-70:        rgba(10,10,10,.70);
  --paper:         #FAFAF9;
  --paper-2:       #F4F4F2;
  --paper-pure:    #FFFFFF;
  --line:          rgba(10,10,10,.08);
  --line-strong:   rgba(10,10,10,.18);
  --on-ink:        #FAFAF9;
  --on-ink-50:     rgba(250,250,249,.55);
  --on-ink-line:   rgba(255,255,255,.10);
  --accent:        #f12d47;            /* aparece SOLO en el isotipo del logo */
  /* Token específico para labels pequeños (eyebrow, captions ≤ 12px).
     Subido a 0.62 para cumplir WCAG AA 4.5:1 sobre --paper */
  --ink-label:     rgba(10,10,10,.62);

  /* TYPE */
  --ff-sans: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ff-serif: 'Fraunces', 'Times New Roman', serif;
  --fs-micro: 11px;
  --fs-body: 16px;
  --fs-lead: 18px;
  --lh-tight: 1.05;
  --lh-snug: 1.2;
  --lh-base: 1.55;

  /* SPACING */
  --gap-xs: 8px;
  --gap-sm: 12px;
  --gap-md: 24px;
  --gap-lg: 40px;
  --gap-xl: 80px;
  --gap-2xl: 144px;
  --pad-x: clamp(20px, 5vw, 80px);

  /* MOTION TOKENS (se usan en Fase 4-5) */
  --ease:          cubic-bezier(.65,0,.35,1);
  --ease-out:      cubic-bezier(.16,1,.3,1);
  --ease-out-back: cubic-bezier(.34,1.56,.64,1);
  --t-micro:       180ms;
  --t-base:        420ms;
  --t-macro:       720ms;
}

/* ─── RESET ─────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{
  font-family:var(--ff-sans);
  font-size:var(--fs-body);
  line-height:var(--lh-base);
  color:var(--ink);
  background:var(--paper);
  font-feature-settings:'ss01','cv11';
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
/* ronda 6 · integración: sin desbordamiento horizontal. Algo fuera de pantalla ensanchaba el documento (menú móvil de la barra: /empaque/ medía 710 px a 390; halo del hero:
   /desempaque-total/ medía 1512 px a 1440) y el navegador móvil se alejaba para mostrarlo todo. `overflow-x:hidden` en body no basta: el documento seguía midiendo más.
   `clip` en html y body recorta sin crear contenedor de scroll (el sticky de la barra sigue funcionando); el hidden de arriba queda de respaldo para navegadores sin clip. */
html,body{overflow-x:clip}
body.no-scroll{overflow:hidden;height:100vh}
img,picture,video,svg{display:block;max-width:100%;height:auto}
img{object-fit:cover}
button,input,textarea,select{font:inherit;color:inherit}
button{border:none;background:none;cursor:pointer}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:inherit;line-height:var(--lh-tight)}
em{font-style:normal}
hr{border:none;height:1px;background:var(--line);margin:0}

::selection{background:var(--ink);color:var(--paper)}
:focus{outline:none}
:focus-visible{
  outline:3px solid var(--ink);
  outline-offset:3px;
  border-radius:2px;
}
/* Focus en background oscuro (footer) → outline claro */
.foot :focus-visible{outline-color:var(--paper)}

.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ─── SKIP TO CONTENT ──────────────────────────────────
   Visible solo en :focus para usuarios de teclado.
   Estándar WCAG 2.2 — Bypass Blocks */
.skip-link{
  position:absolute;
  top:-100px;left:16px;
  background:var(--ink);
  color:var(--paper);
  padding:14px 24px;
  z-index:1000;
  font-family:var(--ff-sans);
  font-size:14px;font-weight:600;
  letter-spacing:0.02em;
  text-decoration:none;
  transition:top .2s cubic-bezier(.16,1,.3,1);
}
.skip-link:focus{top:16px;outline:2px solid var(--paper);outline-offset:2px}

/* ─── LAYOUT ────────────────────────────────────────── */
.wrap{max-width:1280px;margin:0 auto;padding:0 var(--pad-x)}
.wrap-narrow{max-width:760px}

/* ─── TYPE SCALE ────────────────────────────────────── */
.h-section{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:clamp(36px, 5.2vw, 72px);
  letter-spacing:-0.025em;
  line-height:1.02;
  color:var(--ink);
}
.h-section em{
  font-style:italic;
  font-variation-settings:'opsz' 144,'SOFT' 50;
  color:var(--ink);
}

.eyebrow{
  display:inline-block;
  font-family:var(--ff-sans);
  font-size:var(--fs-micro);
  font-weight:600;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--ink-label); /* WCAG AA compliant */
}
.eyebrow::before{
  content:'';
  display:inline-block;
  width:24px;height:1px;
  background:currentColor;
  vertical-align:middle;
  margin-right:10px;
  transform:translateY(-2px) scaleX(0);
  transform-origin:left center;
  transition:transform .9s cubic-bezier(.16,1,.3,1);
}
.eyebrow.is-drawn::before{transform:translateY(-2px) scaleX(1)}

/* Heading mask reveal (SplitText) — palabras suben desde clip */
.h-line{
  display:block;
  overflow:hidden;
  padding:0.05em 0;   /* margen para descenders */
  line-height:inherit;
}
.h-word{display:inline-block;will-change:transform}

.lead{
  font-family:var(--ff-sans);
  font-size:clamp(16px, 1.4vw, var(--fs-lead));
  line-height:1.5;
  color:var(--ink-70);
  max-width:60ch;
}

/* ─── BUTTONS ───────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 28px;
  border-radius:0;
  font-family:var(--ff-sans);
  font-size:13px;font-weight:600;letter-spacing:0.04em;
  text-transform:uppercase;
  border:1px solid transparent;
  position:relative;overflow:hidden;
  transition:background var(--t-base) var(--ease),
             color var(--t-base) var(--ease),
             border-color var(--t-base) var(--ease),
             box-shadow var(--t-base) var(--ease),
             transform var(--t-micro) var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(0.97);box-shadow:none !important;filter:brightness(0.92)}
.btn:active .btn-icon{transform:translateX(1px)}
.btn-lg{height:60px;padding:0 40px;font-size:13px}

/* Primary — ink fill, sweep via ::before (hover en @media hover:hover) */
.btn-primary{background:var(--ink);color:var(--on-ink)}
.btn-primary::before{
  content:'';position:absolute;inset:0;
  background:var(--ink-2);
  transform:translateX(-101%);
  transition:transform var(--t-base) var(--ease);
  z-index:0;
}
.btn-primary span,.btn-primary .btn-icon{position:relative;z-index:1}

/* Ghost — outlined (hover en @media hover:hover) */
.btn-ghost{
  background:transparent;color:var(--ink);
  border-color:var(--ink-30);
}
.btn-ghost::before{
  content:'';position:absolute;inset:0;
  background:var(--ink);
  transform:translateX(-101%);
  transition:transform var(--t-base) var(--ease);
  z-index:0;
}
.btn-ghost span,.btn-ghost .btn-icon{position:relative;z-index:1}

/* Accent — red WhatsApp button (hover en @media hover:hover) */
.btn-accent{background:var(--accent);color:#fff}
.btn-accent::before{
  content:'';position:absolute;inset:0;
  background:#d91e39;
  transform:translateX(-101%);
  transition:transform var(--t-base) var(--ease);
  z-index:0;
}
.btn-accent span,.btn-accent .btn-icon{position:relative;z-index:1}

/* ─── SPLIT TEXT helper (evita wrap mid-word) ─────── */
.m-word{display:inline-block;white-space:nowrap}

/* ─── KEYWORD UNDERLINE MARK ────────────────────────
   Uso: <span class="kw">texto<span class="kw-u" aria-hidden="true"></span></span>
   GSAP anima kw-u scaleX 0→1 al entrar en viewport    */
.kw{position:relative;display:inline}
.kw-u{
  display:block;
  position:absolute;
  bottom:-2px;left:0;
  width:100%;height:1.5px;
  background:currentColor;
  transform-origin:left center;
  transform:scaleX(0);
  will-change:transform;
  pointer-events:none;
}

/* Hero claim em-dash — tipográfico */
.hero-claim-dash{
  color:var(--ink-30);
  font-style:normal;
  font-family:var(--ff-serif);
}

/* ═══════════════════════════════════════════════════
   ICONOGRAFÍA · sistema unificado · color rojo HGR
   ═══════════════════════════════════════════════════ */
.icon,
[class^="icon-"],
.preocup-icon,
.modo-icon,
.instal-bullet,
.btn-icon,
.rule-mark{
  display:inline-block;flex-shrink:0;
  width:20px;height:20px;
  color:var(--accent);
  vertical-align:middle;
}
.icon-sm{width:14px;height:14px}
.icon-lg{width:28px;height:28px}
.icon-mark{width:14px;height:14px}

/* Brand · logo + product badge en header ─────────── */
.brand{display:flex;align-items:center;gap:14px}
.brand-product{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px 5px 8px;
  border:1px solid var(--accent);
  color:var(--accent);
  font-family:var(--ff-sans);
  font-size:11px;font-weight:600;
  letter-spacing:0.14em;text-transform:uppercase;
  line-height:1;
  transition:background var(--t-micro) var(--ease),color var(--t-micro) var(--ease);
}
.brand-product .icon{width:12px;height:12px}
/* brand-product hover → @media (hover:hover) */
@media (max-width:560px){
  .brand-product span:last-child{display:none}
}

/* Hero badge · "Paquete Completo" sello ──────────── */
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 14px;
  border:1px solid var(--accent);
  color:var(--accent);
  font-family:var(--ff-sans);
  font-size:11px;font-weight:600;
  letter-spacing:0.16em;text-transform:uppercase;
  line-height:1;
  align-self:start;
}
.hero-badge .icon{width:14px;height:14px;animation:spark-rotate 12s linear infinite}
.hero-badge-sep{opacity:.5;font-weight:400}
.hero-badge-sub{color:var(--ink-50);font-weight:500}
@keyframes spark-rotate{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){
  .hero-badge .icon{animation:none}
}
@media (max-width:560px){
  .hero-badge{flex-wrap:wrap}
  .hero-badge-sep{display:none}
  .hero-badge-sub{flex-basis:100%;letter-spacing:0.1em}
}

/* Botones con icono interno ──────────────────────── */
.btn-icon{width:16px;height:16px;transition:transform var(--t-micro) var(--ease)}
.btn-primary .btn-icon{color:var(--accent)}
.btn-accent  .btn-icon{color:#fff}
.btn-ghost   .btn-icon{color:var(--accent)}
/* btn:hover .btn-icon → @media (hover:hover) */

/* Preocupaciones · icono arriba ──────────────────── */
.preocup-card{position:relative;padding-top:var(--gap-xl)}
.preocup-icon{
  width:28px;height:28px;
  margin-bottom:auto;
  align-self:flex-start;
}
.preocup-num{
  position:absolute;top:var(--gap-md);right:var(--gap-md);
  margin:0;
}

/* Modos · icono arriba ──────────────────────────── */
.modo-chip{padding-top:var(--gap-lg)}
.modo-icon{
  width:28px;height:28px;
  margin-bottom:8px;
  transition:transform var(--t-base) var(--ease),color var(--t-base) var(--ease);
}
/* modo-chip:hover .modo-icon → @media (hover:hover) */

/* Instalación list · bullet rojo ─────────────────── */
.instal-list li{
  display:flex;align-items:baseline;gap:16px;
}
.instal-bullet{
  width:14px;height:14px;
  color:var(--accent);
  opacity:.6;
  transition:opacity var(--t-base) var(--ease),transform var(--t-base) var(--ease);
  transform:translateY(-3px);
}
/* instal-list li:hover .instal-bullet → @media (hover:hover) */

/* Rule · separador con mark central rojo ─────────── */
.rule{
  position:relative;
  height:1px;
  background:var(--line);
  margin:0 var(--pad-x);
  max-width:1280px;
  margin-left:auto;margin-right:auto;
  overflow:visible;
}
.rule-mark{
  position:absolute;left:50%;top:50%;
  transform:translate(-50%,-50%);
  width:16px;height:16px;
  background:var(--paper);
  padding:4px;
  box-sizing:content-box;
  color:var(--accent);
}

/* Footer stamp · sello "Paquete Completo" ────────── */
.foot-stamp{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 14px;
  border:1px solid var(--accent);
  color:var(--accent);
  font-family:var(--ff-sans);
  font-size:11px;font-weight:600;
  letter-spacing:0.16em;text-transform:uppercase;
  line-height:1;
  margin-bottom:var(--gap-lg);
}
.foot-stamp .icon{width:14px;height:14px;animation:spark-rotate 18s linear infinite}
@media (prefers-reduced-motion:reduce){
  .foot-stamp .icon{animation:none}
}

/* ─── RULE (líneas imprenta entre secciones) ──────── */
.rule{
  height:1px;
  background:var(--line);
  margin:0 var(--pad-x);
  max-width:1280px;
  margin-left:auto;margin-right:auto;
}
.rule-divider{transform-origin:left center}

/* ═══════════════════════════════════════════════════
   PRELOADER  (estructura — animación en Fase 4)
   ═══════════════════════════════════════════════════ */
.preloader{
  position:fixed;inset:0;z-index:100;
  display:grid;grid-template-rows:1fr 1fr 1fr;
  pointer-events:none;
}
.pl-panel{background:var(--ink);transform:translateX(-101%)}
.pl-panel-2{transform:translateX(101%)}
.pl-panel-3{transform:translateX(-101%)}
.pl-content{
  position:absolute;inset:0;display:grid;place-items:center;
  font-family:var(--ff-serif);font-weight:400;font-size:clamp(40px, 8vw, 96px);
  letter-spacing:-0.03em;color:var(--paper);
  pointer-events:none;
}
.pl-text{position:absolute;opacity:0}
body.is-loading-end .preloader{display:none}

/* ═══════════════════════════════════════════════════
   CURSOR (estructura — comportamiento en Fase 4)
   ═══════════════════════════════════════════════════ */
.cursor{
  position:fixed;top:0;left:0;z-index:90;
  width:6px;height:6px;border-radius:50%;
  background:var(--ink);
  pointer-events:none;opacity:0;
  transform:translate(-50%,-50%);
  transition:scale var(--t-micro) var(--ease),
             opacity var(--t-micro) var(--ease);
  will-change:transform,scale;
}
@media (max-width:991px){.cursor{display:none}}

/* ═══════════════════════════════════════════════════
   NAV
   ═══════════════════════════════════════════════════ */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(250,250,249,.85);
  backdrop-filter:saturate(150%) blur(8px);
  -webkit-backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-in{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;
}
.logo{display:inline-flex;align-items:center}
.logo img{height:22px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  font-size:13px;font-weight:500;color:var(--ink-70);
  transition:color var(--t-micro) var(--ease);
}
.nav-links a.is-active{color:var(--ink);font-weight:600}
main section[id]{scroll-margin-top:80px}
/* nav-links a:hover → @media (hover:hover) */
.nav-cta{
  padding:8px 16px;
  background:var(--ink);color:var(--on-ink) !important;
  transition:background var(--t-micro) var(--ease);
}
/* nav-cta:hover → @media (hover:hover) */

/* ─── MOBILE MENU TOGGLE (hamburger) ─────────────────── */
.nav-toggle{
  display:none;
  position:relative;
  z-index:51;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line-strong);
  padding:0;
  cursor:pointer;
  transition:border-color var(--t-micro) var(--ease);
}
.nav-toggle-bars{
  display:flex;flex-direction:column;
  gap:5px;
  width:20px;
}
.nav-toggle-bars span{
  display:block;
  width:100%;height:1.5px;
  background:var(--ink);
  transition:transform .3s cubic-bezier(.16,1,.3,1),
             opacity .2s ease,
             margin .3s cubic-bezier(.16,1,.3,1);
  transform-origin:center;
}
.nav.is-open .nav-toggle-bars span:nth-child(1){
  transform:translateY(6.5px) rotate(45deg);
}
.nav.is-open .nav-toggle-bars span:nth-child(2){
  opacity:0;
}
.nav.is-open .nav-toggle-bars span:nth-child(3){
  transform:translateY(-6.5px) rotate(-45deg);
}

/* ─── NAV OVERLAY (cierre por click fuera) ─────────── */
.nav-overlay{
  position:fixed;inset:0;
  background:rgba(10,10,10,.55);
  opacity:0;
  visibility:hidden;
  z-index:48;
  transition:opacity .35s var(--ease-out),visibility .35s;
}
.nav.is-open ~ .nav-overlay{
  opacity:1;
  visibility:visible;
}

@media (max-width:768px){
  .nav-toggle{display:flex}
  /* El filtro crea un contenedor para fixed: al abrir, el panel ocupa la pantalla. */
  .nav.is-open{backdrop-filter:none;-webkit-backdrop-filter:none}

  .nav-links{
    position:fixed;
    top:0;right:0;bottom:0;
    width:min(82vw,360px);
    background:var(--paper);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:88px 32px 32px;
    z-index:49;
    visibility:hidden;
    pointer-events:none;
    overflow-y:auto;
    overscroll-behavior:contain;
    transform:translateX(100%);
    transition:transform .5s cubic-bezier(.16,1,.3,1),visibility 0s linear .5s;
    box-shadow:-20px 0 60px rgba(10,10,10,.08);
  }
  .nav.is-open .nav-links{transform:translateX(0);visibility:visible;pointer-events:auto;transition-delay:0s}

  .nav-links a{
    display:block;
    width:100%;
    font-family:var(--ff-serif);
    font-weight:300;
    font-size:28px;
    letter-spacing:-0.02em;
    color:var(--ink);
    padding:18px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-links a.is-active{font-weight:400}
  .nav-links .nav-cta{
    margin-top:auto;
    margin-bottom:0;
    width:100%;
    text-align:center;
    font-family:var(--ff-sans);
    font-size:13px;
    letter-spacing:0.04em;
    text-transform:uppercase;
    padding:18px;
    border-bottom:none;
  }

  /* Body scroll lock cuando drawer está abierto */
  body.nav-locked{overflow:hidden;height:100vh}
}

/* Contenido completo si las bibliotecas de movimiento no están disponibles. */
.motion-static .faq-item,.motion-static .preocup-card,.motion-static .modo-chip{
  opacity:1;transform:none;transition:none;
}
.motion-static .faq-q::after,.motion-static .preocup-q::after,.motion-static .modo-chip h3::after{
  transform:scaleX(1);transition:none;
}
.motion-static .cursor{display:none}

/* ═══════════════════════════════════════════════════
   A · HERO
   ═══════════════════════════════════════════════════ */
.hero{
  position:relative;
  min-height:100vh;min-height:100svh;
  display:flex;align-items:center;
  padding:120px 0 80px;
}
.hero-wrap{display:grid;gap:var(--gap-lg)}
.hero-eyebrow{align-self:start}

.hero-h1{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(48px, 9vw, 144px);
  letter-spacing:-0.04em;
  line-height:.98;
  color:var(--ink);
  font-variation-settings:'opsz' 144,'SOFT' 30;
}
.hero-line{display:block}
.hero-line-2{
  font-style:italic;
  font-variation-settings:'opsz' 144,'SOFT' 70;
  color:var(--ink-70);
  margin-top:8px;
}

.hero-body{
  display:grid;grid-template-columns:1fr 1fr;gap:var(--gap-lg);
  max-width:1100px;
}
.hero-lead{
  font-family:var(--ff-sans);
  font-size:clamp(16px, 1.35vw, 19px);
  line-height:1.55;
  color:var(--ink-70);
}
.hero-claim{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:clamp(20px, 1.8vw, 26px);
  line-height:1.3;
  color:var(--ink);
  letter-spacing:-0.01em;
}
.hero-claim em{font-style:italic;font-variation-settings:'opsz' 24,'SOFT' 60}

.hero-meta{
  display:grid;grid-template-columns:auto 1fr;gap:var(--gap-xl);
  align-items:end;border-top:1px solid var(--line);padding-top:var(--gap-md);
}
.hero-stat{display:flex;flex-direction:column;gap:4px}
.hero-stat-n{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:clamp(40px, 4.5vw, 64px);
  letter-spacing:-0.04em;line-height:1;
  color:var(--ink);
}
.hero-stat-l{
  font-size:12px;text-transform:uppercase;letter-spacing:0.12em;
  color:var(--ink-50);
}
.hero-ctas{display:flex;gap:var(--gap-sm);justify-self:end;flex-wrap:wrap}

.hero-scrollhint{
  position:absolute;bottom:32px;right:var(--pad-x);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:10px;text-transform:uppercase;letter-spacing:0.2em;
  color:var(--ink-50);
}
.hero-scrollhint-line{
  width:1px;height:48px;background:var(--ink-30);
  position:relative;overflow:hidden;
}
.hero-scrollhint-line::after{
  content:'';
  position:absolute;left:0;top:0;
  width:100%;height:50%;
  background:var(--ink);
  animation:scroll-pulse 1.8s cubic-bezier(.65,0,.35,1) infinite;
}
@keyframes scroll-pulse{
  0%{transform:translateY(-100%)}
  100%{transform:translateY(200%)}
}
@media (prefers-reduced-motion:reduce){
  .hero-scrollhint-line::after{animation:none}
}

@media (max-width:768px){
  .hero{padding:96px 0 64px}
  .hero-body{grid-template-columns:1fr;gap:var(--gap-md)}
  .hero-meta{grid-template-columns:1fr;gap:var(--gap-md)}
  .hero-ctas{justify-self:start}
  .hero-scrollhint{display:none}
}

/* ═══════════════════════════════════════════════════
   B · PREOCUPACIONES (4 cards)
   ═══════════════════════════════════════════════════ */
.preocup{padding:var(--gap-2xl) 0}
.sect-head{display:flex;flex-direction:column;gap:var(--gap-sm);margin-bottom:var(--gap-xl);max-width:760px}
.sect-head-center{margin-left:auto;margin-right:auto;text-align:center;align-items:center}

.preocup-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.preocup-card{
  background:var(--paper);
  padding:var(--gap-lg) var(--gap-md);
  display:flex;flex-direction:column;gap:var(--gap-md);
  transition:background var(--t-base) var(--ease);
}
/* preocup-card:hover → @media (hover:hover) */
.preocup-num{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:14px;
  color:var(--ink-50);
  letter-spacing:0;
}
.preocup-q{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:clamp(22px, 1.8vw, 28px);
  letter-spacing:-0.02em;
  line-height:1.15;
  color:var(--ink);
}
.preocup-a{
  font-size:14px;line-height:1.55;color:var(--ink-70);
  margin-top:auto;
}

@media (max-width:1024px){.preocup-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.preocup-grid{grid-template-columns:1fr}}

/* ═══════════════════════════════════════════════════
   C · MÉTODO (long-read)
   ═══════════════════════════════════════════════════ */
.metodo{
  padding:var(--gap-2xl) 0;
  background:var(--paper-pure);
}
.metodo-body{
  display:flex;flex-direction:column;gap:var(--gap-lg);
  margin:0 auto;max-width:680px;
  margin-bottom:var(--gap-xl);
}
.metodo-lead{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(24px, 2.4vw, 36px);
  letter-spacing:-0.02em;line-height:1.25;
  color:var(--ink);
}
.metodo-caos{
  display:flex;flex-direction:column;gap:6px;
  padding-left:0;
  font-family:var(--ff-sans);font-size:17px;
  color:var(--ink-70);
}
.metodo-caos li{
  padding:6px 0;
  border-bottom:1px solid var(--line);
}
.metodo-caos li:last-child{border-bottom:none}

.metodo-bridge{
  font-family:var(--ff-sans);
  font-size:17px;line-height:1.6;
  color:var(--ink-70);
}

.metodo-steps{
  display:flex;flex-direction:column;gap:0;
  border-top:1px solid var(--line);
}
.metodo-steps li{
  display:grid;grid-template-columns:48px 1fr;
  gap:var(--gap-md);
  padding:var(--gap-md) 0;
  border-bottom:1px solid var(--line);
  font-size:17px;
  color:var(--ink);
}
.step-n{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:14px;
  color:var(--ink-50);
  align-self:start;
  padding-top:4px;
}

.metodo-claim{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(22px, 2vw, 30px);
  letter-spacing:-0.02em;line-height:1.3;
  color:var(--ink);
  padding-top:var(--gap-md);
}
.metodo-claim em{
  font-style:italic;
  font-variation-settings:'opsz' 144,'SOFT' 70;
}
.metodo-claim-3{
  display:flex;flex-direction:column;gap:4px;
}
.metodo-claim-3 strong{font-weight:400;color:var(--ink);margin-top:var(--gap-sm)}
.metodo-claim-3 span{color:var(--ink-50)}

.metodo-sep{
  margin:var(--gap-xl) auto;
  max-width:160px;
  background:var(--ink);height:1px;opacity:.5;
}

.metodo-logic{
  display:flex;flex-direction:column;gap:0;
  border-top:1px solid var(--line);
}
.metodo-logic li{
  display:flex;gap:12px;align-items:baseline;
  padding:var(--gap-md) 0;
  border-bottom:1px solid var(--line);
  font-size:17px;color:var(--ink-70);
}
.metodo-logic li strong{
  font-weight:500;color:var(--ink);min-width:180px;
}

/* ═══════════════════════════════════════════════════
   D · EMPAQUE (grid + doble título cruzado)
   ═══════════════════════════════════════════════════ */
.empaque{
  padding:var(--gap-2xl) 0 0;
  background:var(--paper);
}
.empaque-head{
  position:relative;
  height:clamp(280px, 36vw, 480px);
  margin-bottom:var(--gap-xl);
  overflow:hidden;
}
.empaque-head .wrap{height:100%;position:relative}
.empaque-head .eyebrow{position:absolute;top:0;left:var(--pad-x)}

.empaque-title{
  position:absolute;left:50%;top:50%;
  transform:translate(-50%,-50%);
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:clamp(80px, 18vw, 320px);
  letter-spacing:-0.04em;
  line-height:.9;
  white-space:nowrap;
  pointer-events:none;
}
.empaque-title-solid{
  position:absolute;left:50%;top:0;
  transform:translateX(-50%);
  color:var(--ink);
  will-change:transform;   /* solo transform — compositable por GPU */
}
.empaque-title-outline{
  position:absolute;left:50%;bottom:0;
  transform:translateX(-50%);
  color:transparent;
  -webkit-text-stroke:1.5px var(--ink);
  text-stroke:1.5px var(--ink);
  will-change:transform;   /* idem */
}

.empaque-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--line);
  border-top:1px solid var(--line);
}
.empaque-item{background:var(--paper);overflow:hidden}
.empaque-item figure{
  position:relative;
  aspect-ratio:1/1;
  overflow:hidden;
}
.empaque-item img{
  width:100%;height:100%;object-fit:cover;
  object-position:center 25%;
  transition:transform var(--t-macro) var(--ease);
}
/* empaque-item:hover img → @media (hover:hover) */
.empaque-item figcaption{
  position:absolute;left:0;right:0;bottom:0;
  display:flex;align-items:center;justify-content:space-between;
  padding:var(--gap-md);
  color:var(--paper);
  background:linear-gradient(to top,rgba(10,10,10,.55),rgba(10,10,10,0));
}
.empaque-num{
  font-family:var(--ff-serif);font-size:13px;
  letter-spacing:0.04em;opacity:.85;
}
.empaque-cap{
  font-family:var(--ff-sans);font-size:13px;
  font-weight:500;letter-spacing:-0.005em;
  text-align:right;
}

@media (max-width:1024px){
  .empaque-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .empaque-grid{grid-template-columns:1fr}
  .empaque-item figure{aspect-ratio:4/3}
}

/* ═══════════════════════════════════════════════════
   E · INSTALACIÓN (pin estructura)
   ═══════════════════════════════════════════════════ */
.instal{
  padding:var(--gap-2xl) 0 var(--gap-2xl);
  background:var(--paper);
}
.instal-pin{
  position:relative;
  margin-bottom:var(--gap-2xl);
  overflow:hidden;
}
.instal-img-main{
  width:100%;
  height:clamp(360px, 55vh, 720px);
  object-fit:cover;
  object-position:center top;
}
.instal-vertical{
  position:absolute;
  top:50%;right:var(--gap-md);
  transform:translateY(-50%) rotate(90deg);
  transform-origin:right center;
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(14px,1.2vw,18px);
  letter-spacing:0.4em;
  text-transform:uppercase;
  color:var(--paper);
  white-space:nowrap;
  mix-blend-mode:difference;
}

.instal-grid{
  display:grid;grid-template-columns:1.2fr 1fr;
  gap:var(--gap-xl);
  align-items:start;
  margin:var(--gap-xl) 0;
}
.instal-list{
  display:flex;flex-direction:column;
  border-top:1px solid var(--line);
}
.instal-list li{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(28px, 3.4vw, 48px);
  letter-spacing:-0.025em;
  padding:var(--gap-sm) 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  line-height:1.1;
  transition:padding-left var(--t-base) var(--ease),color var(--t-base) var(--ease);
}
/* instal-list li:hover → @media (hover:hover) */

.instal-side{
  aspect-ratio:3/4;
  overflow:hidden;
  position:relative;
}
.instal-side img{
  width:100%;height:100%;object-fit:cover;
  transition:transform var(--t-macro) var(--ease);
}
/* instal-side:hover img → @media (hover:hover) */

.instal-claim{
  font-family:var(--ff-sans);
  font-size:clamp(16px, 1.35vw, 19px);
  line-height:1.55;
  color:var(--ink-70);
  max-width:60ch;
  margin-top:var(--gap-xl);
}
.instal-claim-strong{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(24px, 2.4vw, 36px);
  letter-spacing:-0.02em;line-height:1.3;
  color:var(--ink);
  margin:var(--gap-md) 0 var(--gap-lg);
}
.instal-claim-strong em{
  font-style:italic;
  font-variation-settings:'opsz' 144,'SOFT' 70;
}

@media (max-width:768px){
  .instal-grid{grid-template-columns:1fr;gap:var(--gap-lg)}
}

/* ═══════════════════════════════════════════════════
   F · MODOS (4 chips)
   ═══════════════════════════════════════════════════ */
.modos{
  padding:var(--gap-2xl) 0;
  background:var(--paper);
}
.modos-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.modo-chip{
  background:var(--paper);
  padding:var(--gap-lg) var(--gap-md);
  display:flex;flex-direction:column;gap:var(--gap-md);
  min-height:240px;
  transition:background var(--t-base) var(--ease);
  cursor:default;
}
/* modo-chip:hover → @media (hover:hover) */
.modo-chip h3{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(22px, 2vw, 30px);
  letter-spacing:-0.02em;
  color:var(--ink);
}
.modo-chip h3 em{
  font-style:italic;
  font-variation-settings:'opsz' 144,'SOFT' 70;
}
.modo-chip p{
  font-size:14px;line-height:1.5;color:var(--ink-70);
  margin-top:auto;
}

@media (max-width:1024px){.modos-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.modos-grid{grid-template-columns:1fr}}

/* ═══════════════════════════════════════════════════
   G · FAQ — subtítulos jerarquizados + numerados
   ═══════════════════════════════════════════════════ */
.faq{
  padding:var(--gap-2xl) 0;
  background:var(--paper);
}
.faq-list{
  margin-top:var(--gap-xl);
  display:flex;flex-direction:column;
  gap:0;
  counter-reset:faq-counter;
  max-width:740px;
  margin-left:auto;margin-right:auto;
}
.faq-item{
  --faq-i:0;
  position:relative;
  border-top:1px solid var(--line);
  padding:var(--gap-lg) 0 var(--gap-lg) clamp(3rem, 6vw, 4.5rem);
  transition:padding-left .35s cubic-bezier(.16,1,.3,1),
             border-color .35s ease;
}
.faq-item:last-child{border-bottom:1px solid var(--line)}

/* Counter number — brand red, sans bold, vertical aligned */
.faq-item::before{
  counter-increment:faq-counter;
  content:counter(faq-counter, decimal-leading-zero);
  position:absolute;
  left:0;
  top:calc(var(--gap-lg) + .35em);
  font-family:var(--ff-sans);
  font-weight:600;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--accent);
  line-height:1;
  display:inline-block;
  transform-origin:left center;
}

/* Pregunta — serif fuerte, jerarquía clara */
.faq-q{
  font-family:var(--ff-serif);
  font-weight:400;
  font-size:clamp(20px,2.6vw,28px);
  line-height:1.25;
  letter-spacing:-.02em;
  color:var(--ink);
  margin-bottom:.85rem;
  position:relative;
}
.faq-q::after{
  /* línea acento bajo la pregunta — animable */
  content:'';
  display:block;
  width:32px;
  height:1.5px;
  background:var(--accent);
  margin-top:.6rem;
  transform-origin:left center;
  transform:scaleX(0);
  transition:transform .6s cubic-bezier(.16,1,.3,1);
}

/* Respuesta — sans, peso secundario, max-width legible */
.faq-a{
  font-family:var(--ff-sans);
  font-size:clamp(15px,1.8vw,17px);
  line-height:1.7;
  color:var(--ink-70);
  max-width:62ch;
}
.faq-a em{
  font-style:italic;
  color:var(--ink);
  font-weight:500;
}

/* ── Entrance stagger (al entrar viewport) ── */
.faq-item{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .7s cubic-bezier(.16,1,.3,1),
             transform .7s cubic-bezier(.16,1,.3,1),
             padding-left .35s cubic-bezier(.16,1,.3,1),
             border-color .35s ease;
  transition-delay:calc(var(--faq-i) * 90ms);
}
.faq.is-visible .faq-item{
  opacity:1;
  transform:translateY(0);
}
.faq.is-visible .faq-q::after{
  transform:scaleX(1);
  transition-delay:calc(var(--faq-i) * 90ms + .35s);
}

/* ── Mobile: pulse constante del counter (motion siempre visible) ── */
@media (max-width:991px){
  .faq-item::before{
    animation:faqNumPulse 3.4s ease-in-out infinite;
    animation-delay:calc(var(--faq-i) * 220ms);
  }
}
@keyframes faqNumPulse{
  0%,100%{opacity:.7;transform:translateY(0) scale(1)}
  50%{opacity:1;transform:translateY(-1px) scale(1.08)}
}

/* ── Desktop hover enhancement ── */
@media (hover:hover) and (min-width:992px){
  .faq-item{
    cursor:default;
  }
  .faq-item:hover{
    padding-left:calc(clamp(3rem, 6vw, 4.5rem) + 12px);
    border-top-color:var(--ink);
  }
  .faq-item:hover::before{
    transform:scale(1.15);
    color:var(--accent);
  }
  .faq-item:hover .faq-q::after{
    width:64px;
  }
}

/* Stagger index via :nth-child (zero JS para esto) */
.faq-item:nth-child(1){--faq-i:0}
.faq-item:nth-child(2){--faq-i:1}
.faq-item:nth-child(3){--faq-i:2}
.faq-item:nth-child(4){--faq-i:3}
.faq-item:nth-child(5){--faq-i:4}
.faq-item:nth-child(6){--faq-i:5}

/* Reducir motion si el user lo prefiere */
@media (prefers-reduced-motion:reduce){
  .faq-item,
  .faq-q::after,
  .faq-item::before{
    transition-duration:.01ms !important;
    animation:none !important;
  }
  .faq-item{opacity:1;transform:none}
  .faq-q::after{transform:scaleX(1)}
}

/* ═══════════════════════════════════════════════════
   SUBTÍTULOS PROTAGONISTAS · entrance + motion
   (Cuatro Frentes + Modos · misma filosofía que FAQ)
   ═══════════════════════════════════════════════════ */

/* ── Cuatro Frentes · refuerzo tipográfico ── */
.preocup-num{
  font-weight:500;
  letter-spacing:.05em;
  font-variant-numeric:tabular-nums;
  transition:color .35s ease,transform .35s ease;
}
.preocup-q{
  font-weight:500;
  line-height:1.2;
  position:relative;
}
.preocup-q::after{
  content:'';
  display:block;
  width:24px;
  height:1.5px;
  background:var(--ink);
  margin-top:.85rem;
  transform-origin:left center;
  transform:scaleX(0);
  transition:transform .6s cubic-bezier(.16,1,.3,1),
             background-color .35s ease,
             width .35s ease;
}

/* ── Modos · refuerzo tipográfico ── */
.modo-chip h3{
  font-weight:400;
  line-height:1.18;
  position:relative;
}
.modo-chip h3::after{
  content:'';
  display:block;
  width:20px;
  height:1.5px;
  background:var(--ink-50);
  margin-top:.75rem;
  transform-origin:left center;
  transform:scaleX(0);
  transition:transform .6s cubic-bezier(.16,1,.3,1),
             width .35s ease,
             background-color .35s ease;
}

/* ── Entrance stagger genérico ── */
.preocup-card,
.modo-chip{
  --i:0;
  opacity:0;
  transform:translateY(16px);
  transition:opacity .7s cubic-bezier(.16,1,.3,1),
             transform .7s cubic-bezier(.16,1,.3,1),
             background var(--t-base) var(--ease);
  transition-delay:calc(var(--i) * 100ms);
}
.preocup-grid.is-visible .preocup-card,
.modos-grid.is-visible .modo-chip{
  opacity:1;
  transform:translateY(0);
}
.preocup-grid.is-visible .preocup-q::after,
.modos-grid.is-visible .modo-chip h3::after{
  transform:scaleX(1);
  transition-delay:calc(var(--i) * 100ms + .4s);
}

/* Stagger index */
.preocup-card:nth-child(1),.modo-chip:nth-child(1){--i:0}
.preocup-card:nth-child(2),.modo-chip:nth-child(2){--i:1}
.preocup-card:nth-child(3),.modo-chip:nth-child(3){--i:2}
.preocup-card:nth-child(4),.modo-chip:nth-child(4){--i:3}

/* ── Mobile: motion constante (iconos y números pulsan) ── */
@media (max-width:991px){
  .preocup-num{
    animation:numCountPulse 4s ease-in-out infinite;
    animation-delay:calc(var(--i) * 300ms);
  }
  .preocup-icon,
  .modo-icon{
    animation:iconFloat 4.5s ease-in-out infinite;
    animation-delay:calc(var(--i) * 250ms);
    transform-origin:center;
  }
}
@keyframes numCountPulse{
  0%,100%{color:var(--ink-50);transform:translateY(0)}
  50%{color:var(--ink);transform:translateY(-1px)}
}
@keyframes iconFloat{
  0%,100%{transform:translateY(0) scale(1)}
  50%{transform:translateY(-3px) scale(1.03)}
}

/* ── Desktop hover enhancement ── */
@media (hover:hover) and (min-width:992px){
  .preocup-card:hover .preocup-num{
    color:var(--accent);
    transform:scale(1.15);
  }
  .preocup-card:hover .preocup-q::after{
    width:48px;
    background-color:var(--accent);
  }
  .preocup-card:hover .preocup-icon{
    transform:scale(1.08) rotate(-3deg);
    transition:transform .45s cubic-bezier(.16,1,.3,1);
  }
  .modo-chip:hover h3::after{
    width:40px;
    background-color:var(--accent);
  }
  .modo-chip:hover .modo-icon{
    transform:scale(1.1) rotate(3deg);
    transition:transform .45s cubic-bezier(.16,1,.3,1);
  }
}

/* Reducir motion respect */
@media (prefers-reduced-motion:reduce){
  .preocup-card,.modo-chip,
  .preocup-q::after,.modo-chip h3::after,
  .preocup-num,.preocup-icon,.modo-icon{
    transition-duration:.01ms !important;
    animation:none !important;
  }
  .preocup-card,.modo-chip{opacity:1;transform:none}
  .preocup-q::after,.modo-chip h3::after{transform:scaleX(1)}
}

/* ═══════════════════════════════════════════════════
   H · COBERTURA GEOGRÁFICA
   ═══════════════════════════════════════════════════ */
.cobertura{
  padding:var(--gap-2xl) 0;
  background:var(--paper-2);
}
.cobertura-grid{
  list-style:none;
  margin:var(--gap-xl) auto 0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:.5rem .75rem;
  max-width:780px;
}
.cobertura-grid li{
  font-family:var(--ff-sans);
  font-size:14px;
  letter-spacing:.02em;
  color:var(--ink);
  padding:.5rem 1rem;
  background:var(--paper-pure);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .25s ease,color .25s ease;
}
.cobertura-grid li:hover{
  border-color:var(--ink);
}
.cobertura-note{
  margin-top:var(--gap-lg);
  text-align:center;
  font-family:var(--ff-sans);
  font-size:15px;
  color:var(--ink-label);
  line-height:1.55;
}
.cobertura-note strong{
  color:var(--ink);
  font-weight:500;
}
.cobertura-note a{color:var(--ink);font-weight:500;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}

/* ═══════════════════════════════════════════════════
   I · CTA FINAL
   ═══════════════════════════════════════════════════ */
.cta-final{
  padding:var(--gap-2xl) 0;
  background:var(--paper);
}
.cta-actions{
  display:flex;flex-direction:column;align-items:center;
  gap:var(--gap-sm);
  margin-top:var(--gap-lg);
}
.cta-phone{
  font-family:var(--ff-sans);
  font-size:14px;
  color:var(--ink-label);
  letter-spacing:.01em;
  margin:0;
}
.cta-phone a{
  color:var(--ink);
  font-weight:500;
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  text-decoration-color:var(--ink-30);
  transition:text-decoration-color .25s ease,color .25s ease;
}
.cta-phone a:hover{
  text-decoration-color:var(--accent);
  color:var(--accent);
}

/* ═══════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════ */
.foot{
  background:var(--ink);color:var(--on-ink);
  padding:var(--gap-2xl) 0 var(--gap-lg);
  border-top:1px solid var(--ink-2);
}
.foot-quote{
  font-family:var(--ff-serif);
  font-weight:300;
  font-size:clamp(28px, 3.6vw, 56px);
  letter-spacing:-0.025em;
  line-height:1.15;
  color:var(--paper);
  max-width:24ch;
  margin-bottom:var(--gap-2xl);
}
.foot-quote em{
  font-style:italic;
  font-variation-settings:'opsz' 144,'SOFT' 70;
  color:var(--on-ink-50);
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;
  gap:var(--gap-xl);
  padding-bottom:var(--gap-xl);
  border-bottom:1px solid var(--on-ink-line);
}
.foot-col h4{
  font-family:var(--ff-sans);font-size:12px;
  text-transform:uppercase;letter-spacing:0.18em;
  font-weight:600;color:var(--on-ink-50);
  margin-bottom:var(--gap-md);
}
.foot-col ul{display:flex;flex-direction:column;gap:var(--gap-sm)}
.foot-col a{
  font-size:15px;color:var(--paper);
  border-bottom:1px solid transparent;
  transition:border-color var(--t-micro) var(--ease);
}
/* foot-col a:hover → @media (hover:hover) */
.foot-brand .foot-logo{filter:invert(1);height:24px;width:auto;margin-bottom:var(--gap-md)}
.foot-brand p{font-size:14px;color:var(--on-ink-50);line-height:1.6}

.foot-base{
  display:flex;justify-content:space-between;align-items:center;gap:var(--gap-md);
  padding-top:var(--gap-md);flex-wrap:wrap;
  font-size:12px;color:var(--on-ink-50);
}
.foot-honest{font-style:italic}

@media (max-width:768px){
  .foot-grid{grid-template-columns:1fr;gap:var(--gap-lg)}
}

/* ═══════════════════════════════════════════════════
   HOVER EFFECTS — solo en dispositivos con puntero fino
   (evita "sticky hover" en pantallas táctiles)
   ═══════════════════════════════════════════════════ */
@media (hover: hover) and (pointer: fine) {
  .preocup-card:hover{background:var(--paper-2)}

  .modo-chip:hover{background:var(--ink);color:var(--paper)}
  .modo-chip:hover h3,
  .modo-chip:hover p{color:inherit}
  .modo-chip:hover .modo-icon{transform:rotate(8deg) scale(1.08);color:#fff}

  .empaque-item:hover img{transform:scale(1.04)}

  .instal-list li:hover{padding-left:var(--gap-md);color:var(--ink-2)}
  .instal-list li:hover .instal-bullet{
    opacity:1;
    transform:translateY(-3px) rotate(90deg);
  }
  .instal-side:hover img{transform:scale(1.04)}

  .foot-col a:hover{border-bottom-color:var(--paper)}

  /* Botones — sweep solo en hover real (en touch usa :active) */
  .btn-primary:hover::before{transform:translateX(0)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(10,10,10,.18)}
  .btn-ghost:hover::before{transform:translateX(0)}
  .btn-ghost:hover{color:var(--on-ink);border-color:var(--ink)}
  .btn-accent:hover::before{transform:translateX(0)}
  .btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(241,45,71,.28)}
  .btn:hover .btn-icon{transform:translateX(3px)}

  .brand-product:hover{background:var(--accent);color:#fff}
  .brand-product:hover .icon{color:#fff}

  .nav-links a:hover{color:var(--ink)}

  /* Nav underline draw — solo desktop */
  .nav-links a:not(.nav-cta){position:relative}
  .nav-links a:not(.nav-cta)::after{
    content:'';
    position:absolute;left:0;right:0;bottom:-6px;
    height:1px;background:var(--ink);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .4s cubic-bezier(.16,1,.3,1);
  }
  .nav-links a:not(.nav-cta):hover::after,
  .nav-links a:not(.nav-cta).is-active::after{transform:scaleX(1)}
  .nav-cta:hover{background:var(--ink-2);color:var(--on-ink) !important}
}

/* ═══════════════════════════════════════════════════
   MOBILE FINE-TUNE  (≤ 480px)
   ═══════════════════════════════════════════════════ */
@media (max-width:480px){
  /* Botones full-width en pantallas muy pequeñas */
  .hero-ctas,
  .cta-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .hero-ctas .btn,
  .cta-actions .btn{
    width:100%;
    justify-content:space-between;
  }
  /* Quitar min-height de modos en 1 col */
  .modo-chip{min-height:unset}
  /* Hero claim un poco más pequeño */
  .hero-claim{font-size:clamp(17px,4.5vw,22px)}
  /* Instalación list: fuente un poco más ajustada */
  .instal-list li{font-size:clamp(24px,7.5vw,36px)}
}

/* ═══════════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════════ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .cursor{display:none}
  .preloader{display:none}
}

/* ═══════════════════════════════════════════════════
   PREOCUP-KEY · highlight marker tipo Stabilo
   Solo UNA card .is-active a la vez — el highlight
   se "dibuja" al activar, se "borra" al desactivar.
   ═══════════════════════════════════════════════════ */
.preocup-key{
  /* Marcador estilo highlighter: gradient horizontal accent translúcido */
  background-image:linear-gradient(
    100deg,
    rgba(241,45,71,.0) 0%,
    rgba(241,45,71,.28) 8%,
    rgba(241,45,71,.28) 92%,
    rgba(241,45,71,.0) 100%
  );
  background-repeat:no-repeat;
  background-position:0 88%;
  background-size:0% 62%;
  /* Color del texto: arranca normal, refuerza al activarse */
  color:var(--ink-70);
  font-weight:400;
  padding:.05em .15em;
  margin:0 -.15em;
  border-radius:2px;
  /* Animación: draw left→right al activar, erase right→left al salir */
  transition:
    background-size .85s cubic-bezier(.16,1,.3,1),
    color .55s ease,
    font-weight .55s ease;
  will-change:background-size;
}

/* Estado ACTIVO: marcador dibujado + texto ink más fuerte */
.preocup-card.is-active .preocup-key{
  background-size:100% 62%;
  color:var(--ink);
  font-weight:500;
  transition:
    background-size .85s cubic-bezier(.16,1,.3,1) .15s,
    color .55s ease .25s,
    font-weight .55s ease .25s;
}

/* Estado DESACTIVÁNDOSE: borrado right→left (background-position invierte) */
.preocup-card:not(.is-active) .preocup-key{
  background-position:100% 88%;
}

/* Mobile: refuerza visualmente la card activa con sutil scale + border */
@media (max-width:991px){
  .preocup-card{
    transition:
      opacity .7s cubic-bezier(.16,1,.3,1),
      transform .7s cubic-bezier(.16,1,.3,1),
      background var(--t-base) var(--ease),
      box-shadow .6s cubic-bezier(.16,1,.3,1),
      border-color .5s ease;
    border-left:2px solid transparent;
  }
  .preocup-card.is-active{
    border-left-color:var(--accent);
  }
}

/* Desktop hover: si el user hace hover, ESA card se vuelve activa
   (sobreescribe el observer scroll-based) */
@media (hover:hover) and (min-width:992px){
  .preocup-grid:hover .preocup-card:not(:hover) .preocup-key{
    background-size:0% 62%;
    background-position:100% 88%;
    color:var(--ink-70);
    font-weight:400;
  }
  .preocup-grid:hover .preocup-card:hover .preocup-key{
    background-size:100% 62%;
    color:var(--ink);
    font-weight:500;
  }
}

/* Reduced motion: highlight estático visible */
@media (prefers-reduced-motion:reduce){
  .preocup-key{
    background-size:100% 62%;
    color:var(--ink);
    transition:none;
  }
}