/* ============================================================
   VETTA SECADEROS — Sistema de diseño
   Industrial · Técnico · Confiable
   ============================================================ */

:root{
  /* Paleta */
  --black:        #0a0b0c;
  --graphite-0:   #101113;
  --graphite-1:   #17181b;
  --graphite-2:   #1e2023;
  --graphite-3:   #26292d;
  --line:         rgba(255,255,255,.08);
  --line-strong:  rgba(255,255,255,.16);
  --steel:        #9199a4;
  --steel-light:  #c3c9d1;
  --white:        #f4f5f6;
  --muted:        #9aa0a8;
  --muted-2:      #6c7278;

  --green:        #27b96a;
  --green-light:  #34d17e;
  --green-dark:   #1c8f52;
  --green-ink:    #06150d;

  /* Tipografía */
  --f-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --f-body:    "Inter", -apple-system, "Segoe UI", sans-serif;
  --f-mono:    "IBM Plex Mono", "SFMono-Regular", monospace;

  /* Layout */
  --maxw: 1240px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 4px;
  --radius-lg: 10px;

  --shadow-1: 0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -20px rgba(0,0,0,.6);
  --ease: cubic-bezier(.16,.8,.24,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--black);
  color: var(--white);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
button{ font-family: inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
:focus-visible{ outline: 2px solid var(--green-light); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* Textura sutil de fondo (grano metálico) */
body::before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.5;
  background-image:
    radial-gradient(1200px 600px at 15% -10%, rgba(255,255,255,.05), transparent 60%),
    radial-gradient(900px 500px at 100% 10%, rgba(255,255,255,.035), transparent 60%);
}

.wrap{ max-width: var(--maxw); margin:0 auto; padding-left: var(--pad); padding-right: var(--pad); position:relative; z-index:1; }

.eyebrow{
  display:inline-flex; align-items:center; gap:.6em;
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel-light);
}
.eyebrow::before{
  content:"";
  width: 18px; height: 1px;
  background: linear-gradient(90deg, var(--steel), transparent);
}

h1, .h1{
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  line-height: .98;
  letter-spacing: -.01em;
  text-wrap: balance;
}
h2, .h2{
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.02;
  letter-spacing: -.005em;
  text-wrap: balance;
}
h3, .h3{
  font-family: var(--f-display);
  font-weight: 600;
  font-size: clamp(1.3rem, 1.8vw, 1.6rem);
  letter-spacing: 0;
}
.lede{
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: var(--muted);
  max-width: 46ch;
}
.section-head{ margin-bottom: clamp(2rem, 5vw, 3.5rem); max-width: 62ch; }
.section-head h2{ margin-top:.6rem; }

section{ position:relative; padding: clamp(4rem, 9vw, 7.5rem) 0; }
.section-alt{ background: var(--graphite-0); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

/* ---------- Botones ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.55em;
  font-family: var(--f-body);
  font-weight: 600;
  font-size: .95rem;
  padding: .95em 1.6em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }

.btn-wsp{
  background: var(--green);
  color: var(--green-ink);
  box-shadow: 0 1px 0 rgba(255,255,255,.25) inset, 0 12px 24px -12px rgba(39,185,106,.55);
}
.btn-wsp:hover{ background: var(--green-light); }
.btn-wsp svg{ width:18px; height:18px; flex:none; }

.btn-outline{
  background: transparent;
  border-color: var(--line-strong);
  color: var(--white);
}
.btn-outline:hover{ border-color: var(--steel-light); background: rgba(255,255,255,.04); }

.btn-block{ width:100%; }
.btn-sm{ padding:.7em 1.1em; font-size:.85rem; }

/* ---------- Header ---------- */
.site-header{
  position: fixed; top:0; left:0; right:0; z-index:100;
  border-bottom: 1px solid transparent;
  background: rgba(10,11,12,0);
  transition: background .25s var(--ease), border-color .25s var(--ease), padding .25s var(--ease);
}
.site-header.is-scrolled{
  background: rgba(10,11,12,.86);
  backdrop-filter: blur(10px) saturate(1.1);
  border-bottom-color: var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap: 1.5rem;
  padding: 1.15rem 0;
  transition: padding .25s var(--ease);
}
.site-header.is-scrolled .header-inner{ padding: .8rem 0; }

.brand{ display:flex; align-items:center; gap:.6rem; flex:none; }
.brand-mark{
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: .04em;
  color: var(--white);
  display:flex; align-items:center; gap:.5rem;
}
.brand-mark .brand-logo{ height:34px; width:auto; flex:none; border-radius: 3px; }

.main-nav{ display:flex; align-items:center; gap: clamp(1.1rem, 2vw, 2.1rem); }
.main-nav a{
  font-size: .92rem; color: var(--steel-light); font-weight:500;
  position:relative; padding: .3rem 0;
  transition: color .18s var(--ease);
}
.main-nav a:hover{ color: var(--white); }
.main-nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:-2px; height:1px;
  background: var(--green-light); transition: right .22s var(--ease);
}
.main-nav a:hover::after{ right:0; }

.header-cta{ display:flex; align-items:center; gap:.9rem; position:relative; z-index: 96; }
.nav-toggle{
  display:none; flex-direction:column; gap:5px;
  width: 40px; height:40px; align-items:center; justify-content:center;
  background:transparent; border:1px solid var(--line-strong); border-radius: var(--radius);
}
.nav-toggle span{ width:18px; height:2px; background: var(--white); transition: transform .25s var(--ease), opacity .2s; }
.nav-toggle.is-open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero{
  padding-top: clamp(7.5rem, 14vw, 10rem);
  padding-bottom: clamp(3.5rem, 7vw, 5rem);
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items:center;
}
.hero-copy .eyebrow{ margin-bottom: 1.1rem; }
.hero-copy h1{ color: var(--white); }
.hero-copy .lede{ margin-top: 1.3rem; max-width: 42ch; }
.hero-actions{ display:flex; flex-wrap:wrap; gap: .9rem; margin-top: 2.1rem; }
.hero-trust{
  margin-top: 2.4rem;
  display:flex; flex-wrap:wrap; gap: .5rem 1.4rem;
  font-family: var(--f-mono);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--muted-2);
}
.hero-trust span{ display:flex; align-items:center; gap:.5em; }
.hero-trust span::before{ content:"◆"; font-size:.55em; color: var(--steel); }

.hero-media{ position:relative; }
.hero-media-frame{
  position:relative;
  border-radius: var(--radius-lg);
  overflow:hidden;
  border: 1px solid var(--line-strong);
  background: linear-gradient(155deg, var(--graphite-2), var(--graphite-0));
  box-shadow: var(--shadow-1);
}
.hero-media-frame::before{
  content:""; position:absolute; inset:0; z-index:2; pointer-events:none;
  background: linear-gradient(180deg, rgba(255,255,255,.06), transparent 30%, transparent 70%, rgba(0,0,0,.35));
}
.hero-media-frame img{ width:100%; height:100%; object-fit:cover; aspect-ratio: 1693/929; }
.hero-media-glow{
  position:absolute; inset: -20% -10% auto auto; width:70%; aspect-ratio:1/1;
  background: radial-gradient(circle, rgba(145,153,164,.18), transparent 65%);
  filter: blur(20px); z-index:0; pointer-events:none;
}

/* ---------- Problema ---------- */
.problema-grid{
  display:grid; grid-template-columns: .85fr 1fr; gap: clamp(2rem,5vw,4rem); align-items:start;
}
.problema-grid h2{ color: var(--white); }
.problema-copy p{ color: var(--muted); margin-top: 1.1rem; max-width: 52ch; }
.problema-highlight{
  margin-top: 1.6rem;
  padding: 1.4rem 1.5rem;
  border-left: 2px solid var(--green);
  background: var(--graphite-1);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: var(--f-display);
  font-size: 1.3rem;
  font-weight:500;
  color: var(--white);
  letter-spacing: -.005em;
}

/* ---------- Modelos ---------- */
.models-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.model-card{
  position:relative;
  background: var(--graphite-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow:hidden;
  display:flex; flex-direction:column;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.model-card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:2px;
  background: linear-gradient(90deg, transparent, var(--steel-light), transparent);
  opacity:.5;
}
.model-card:hover{ transform: translateY(-6px); border-color: var(--line-strong); box-shadow: var(--shadow-1); }
.model-card.is-featured{ border-color: rgba(39,185,106,.45); }
.model-card.is-featured::before{ background: linear-gradient(90deg, transparent, var(--green-light), transparent); opacity:.8; }

.model-tag{
  position:absolute; top: 1rem; left:1rem; z-index:3;
  background: var(--green); color: var(--green-ink);
  font-family: var(--f-mono); font-size: .68rem; font-weight:600;
  letter-spacing: .06em; text-transform:uppercase;
  padding: .4em .7em; border-radius: 3px;
}
.model-media{
  position:relative;
  aspect-ratio: 941/860;
  background:
    radial-gradient(120% 100% at 50% 15%, rgba(255,255,255,.06), transparent 55%),
    var(--graphite-2);
  padding: 1.4rem;
  border-bottom: 1px solid var(--line);
}
.model-media img{ width:100%; height:100%; object-fit: contain; object-position:center; filter: drop-shadow(0 18px 22px rgba(0,0,0,.5)); }
.model-body{ padding: 1.6rem 1.6rem 1.8rem; display:flex; flex-direction:column; gap:.85rem; flex:1; }
.model-kicker{
  font-family: var(--f-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color: var(--muted-2);
}
.model-cap{
  font-family: var(--f-display); font-weight:700; font-size: 2.4rem; color: var(--white); line-height:1;
  display:flex; align-items:baseline; gap:.35rem;
}
.model-cap span{ font-family: var(--f-mono); font-size:1rem; font-weight:500; color: var(--steel-light); }
.model-desc{ color: var(--muted); font-size: .95rem; flex:1; }
.model-body .btn{ margin-top:.4rem; }

/* ---------- Control (temp/hum/aire) ---------- */
.control-lead{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--line);
  margin-bottom: 1.5rem; aspect-ratio: 941/430; max-height: 340px;
}
.control-lead img{ width:100%; height:100%; object-fit:cover; object-position: center 25%; }
.control-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.control-card{
  background: var(--graphite-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow:hidden;
}
.control-media{ aspect-ratio: 941/720; overflow:hidden; border-bottom:1px solid var(--line); }
.control-media img{ width:100%; height:100%; object-fit:cover; object-position: center 20%; transition: transform .5s var(--ease); }
.control-card:hover .control-media img{ transform: scale(1.04); }
.control-body{ padding: 1.5rem 1.6rem 1.8rem; }
.control-index{ font-family: var(--f-mono); font-size:.72rem; color: var(--steel); letter-spacing:.1em; }
.control-body h3{ margin-top:.5rem; color: var(--white); }
.control-body p{ margin-top: .6rem; color: var(--muted); font-size:.95rem; }

/* ---------- Beneficios ---------- */
.benefits-grid{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow:hidden;
}
.benefit-item{
  background: var(--graphite-1);
  padding: 1.8rem 1.6rem;
  display:flex; flex-direction:column; gap:.7rem;
}
.benefit-num{ font-family: var(--f-mono); font-size:.75rem; color: var(--steel); }
.benefit-item p{ font-size: .95rem; color: var(--steel-light); font-weight:500; }

/* ---------- Producción real ---------- */
.produccion-grid{
  display:grid; grid-template-columns: 1.1fr .9fr; gap: 1.25rem;
}
.produccion-grid .prod-media{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--line);
}
.prod-media img{ width:100%; height:100%; object-fit:cover; }
.prod-media.tall{ aspect-ratio: 1023/1180; }
.prod-media.short{ aspect-ratio: 941/560; }
.produccion-side{ display:flex; flex-direction:column; gap:1.25rem; }
.produccion-caption{ font-family: var(--f-mono); font-size:.75rem; color: var(--muted-2); margin-top:1rem; letter-spacing:.03em; }

/* ---------- Walter / Nosotros ---------- */
.walter-grid{
  display:grid; grid-template-columns: .95fr 1.05fr; gap: clamp(2rem,5vw,4rem); align-items:center;
}
.walter-media{
  border-radius: var(--radius-lg); overflow:hidden; border:1px solid var(--line);
  aspect-ratio: 1536/1200;
}
.walter-media img{ width:100%; height:100%; object-fit:cover; }
.walter-copy h2{ color:var(--white); }
.walter-copy p{ color: var(--muted); margin-top: 1.1rem; max-width:50ch; }
.walter-signoff{
  margin-top:1.6rem; display:flex; align-items:center; gap:.9rem;
}
.walter-signoff .line{ width:34px; height:1px; background: var(--steel); }
.walter-signoff strong{ font-family: var(--f-display); font-size:1.05rem; letter-spacing:.02em; }
.walter-signoff span{ display:block; font-size:.82rem; color: var(--muted-2); }
.walter-copy .btn{ margin-top: 1.8rem; }

/* ---------- FAQ ---------- */
.faq-list{ border-top: 1px solid var(--line); }
.faq-item{ border-bottom: 1px solid var(--line); }
.faq-q{
  width:100%; background:transparent; border:0; color: var(--white);
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding: 1.4rem 0; text-align:left;
  font-family: var(--f-display); font-size: 1.15rem; font-weight:500;
}
.faq-q .plus{
  flex:none; width: 26px; height:26px; border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex; align-items:center; justify-content:center;
  position:relative; transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.faq-q .plus::before, .faq-q .plus::after{
  content:""; position:absolute; background: var(--steel-light);
}
.faq-q .plus::before{ width:10px; height:1.5px; }
.faq-q .plus::after{ width:1.5px; height:10px; transition: transform .3s var(--ease); }
.faq-item.is-open .faq-q .plus{ transform: rotate(45deg); border-color: var(--green-light); }
.faq-item.is-open .faq-q .plus::before, .faq-item.is-open .faq-q .plus::after{ background: var(--green-light); }

.faq-a{ max-height:0; overflow:hidden; transition: max-height .35s var(--ease); }
.faq-a p{ padding: 0 0 1.5rem; color: var(--muted); max-width: 62ch; font-size:.98rem; }

/* ---------- Cierre ---------- */
.cierre{
  text-align:center;
  background:
    radial-gradient(700px 300px at 50% 0%, rgba(39,185,106,.08), transparent 70%),
    var(--graphite-0);
}
.cierre-inner{ max-width: 640px; margin:0 auto; display:flex; flex-direction:column; align-items:center; }
.cierre h2{ color:var(--white); }
.cierre p{ margin-top:1.1rem; color: var(--muted); font-size:1.05rem; }
.cierre .btn{ margin-top: 2.1rem; }

/* ---------- Footer ---------- */
.site-footer{ background: var(--graphite-0); border-top:1px solid var(--line); padding: 3.5rem 0 2rem; }
.footer-top{
  display:flex; justify-content:space-between; gap: 3rem; flex-wrap:wrap;
  padding-bottom: 2.4rem; border-bottom:1px solid var(--line);
}
.footer-brand .brand-mark{ margin-bottom: .9rem; }
.footer-brand .brand-logo{ height: 46px; }
.footer-brand p{ color: var(--muted); font-size:.9rem; max-width: 32ch; }
.footer-cols{ display:flex; gap: clamp(2rem, 6vw, 5rem); flex-wrap:wrap; }
.footer-col h4{
  font-family: var(--f-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
  color: var(--muted-2); margin-bottom: 1rem;
}
.footer-col a, .footer-col p{ display:block; color: var(--steel-light); font-size:.92rem; margin-bottom:.6rem; }
.footer-col a:hover{ color: var(--white); }
.footer-bottom{
  padding-top: 1.6rem; display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap;
  font-size:.82rem; color: var(--muted-2);
}
.footer-bottom .socials{ display:flex; gap:1.2rem; }
.footer-bottom .socials a{ color: var(--muted-2); }
.footer-bottom .socials a:hover{ color: var(--white); }

/* ---------- Flotantes: WhatsApp + V-BOT ---------- */
.float-stack{
  position: fixed; right: clamp(14px, 3vw, 28px); bottom: clamp(14px, 3vw, 28px);
  z-index: 90; display:flex; flex-direction:column; align-items:flex-end; gap: .7rem;
}
.wsp-float{
  width: 58px; height:58px; border-radius:50%;
  background: var(--green); color: var(--green-ink);
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 14px 28px -10px rgba(39,185,106,.6);
  transition: transform .2s var(--ease);
}
.wsp-float:hover{ transform: scale(1.06); }
.wsp-float svg{ width:28px; height:28px; }

.vbot-toggle{
  width: 42px; height:42px; border-radius:50%;
  background: var(--graphite-2); border: 1px solid var(--line-strong);
  color: var(--steel-light);
  display:flex; align-items:center; justify-content:center;
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.vbot-toggle:hover{ transform: scale(1.06); border-color: var(--steel-light); }
.vbot-toggle svg{ width:19px; height:19px; }

.vbot-panel{
  position: fixed; right: clamp(14px, 3vw, 28px); bottom: calc(clamp(14px, 3vw, 28px) + 112px);
  z-index: 89; width: min(320px, calc(100vw - 28px));
  background: var(--graphite-1); border:1px solid var(--line-strong); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  padding: 1.2rem;
  transform: translateY(12px) scale(.98); opacity:0; pointer-events:none;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}
.vbot-panel.is-open{ transform: translateY(0) scale(1); opacity:1; pointer-events:auto; }
.vbot-head{ display:flex; align-items:center; gap:.6rem; margin-bottom:.9rem; }
.vbot-head .avatar{
  width:30px; height:30px; border-radius:50%; background: var(--graphite-3);
  display:flex; align-items:center; justify-content:center; color: var(--green-light); flex:none;
}
.vbot-head .avatar svg{ width:16px; height:16px; }
.vbot-head strong{ font-family: var(--f-display); font-size:1rem; display:block; }
.vbot-head span{ font-size:.78rem; color: var(--muted-2); }
.vbot-msg{
  background: var(--graphite-2); border-radius: var(--radius); padding: .8rem .9rem;
  font-size: .88rem; color: var(--steel-light); margin-bottom: 1rem; line-height:1.5;
}
.vbot-options{ display:flex; flex-direction:column; gap:.5rem; }
.vbot-options a{
  display:block; text-align:left; font-size:.86rem; font-weight:500;
  padding:.65em .8em; border-radius: var(--radius);
  background: var(--graphite-2); border:1px solid var(--line);
  transition: border-color .18s var(--ease), background .18s var(--ease);
}
.vbot-options a:hover{ border-color: var(--green-light); background: var(--graphite-3); }

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity:0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }
.reveal-stagger > *{ opacity:0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal-stagger.is-visible > *{ opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(1){ transition-delay: .02s; }
.reveal-stagger.is-visible > *:nth-child(2){ transition-delay: .1s; }
.reveal-stagger.is-visible > *:nth-child(3){ transition-delay: .18s; }
.reveal-stagger.is-visible > *:nth-child(4){ transition-delay: .26s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1020px){
  .models-grid, .control-grid{ grid-template-columns: repeat(2, 1fr); }
  .benefits-grid{ grid-template-columns: repeat(2, 1fr); }
  .walter-grid{ grid-template-columns: 1fr; }
  .walter-media{ max-width: 420px; }
  .produccion-grid{ grid-template-columns: 1fr; }
  .prod-media.tall{ aspect-ratio: 1023/700; }
}

@media (max-width: 860px){
  .main-nav{
    position: fixed; inset: 0 0 0 auto; top: 0; height:100vh; width: min(320px, 84vw);
    background: var(--graphite-0); border-left:1px solid var(--line);
    flex-direction:column; align-items:flex-start; justify-content:flex-start;
    padding: 6.5rem 2rem 2rem; gap: 1.6rem;
    transform: translateX(100%); transition: transform .3s var(--ease);
    z-index: 95;
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav a{ font-size: 1.15rem; }
  .header-cta .btn-wsp span{ display:none; }
  .header-cta .btn-wsp{ padding: .8em; border-radius:50%; }
  .header-cta .btn-wsp svg{ margin:0; }
  .nav-toggle{ display:flex; }
  .nav-scrim{
    position:fixed; inset:0; background: rgba(0,0,0,.55); z-index:94;
    opacity:0; pointer-events:none; transition: opacity .3s var(--ease);
  }
  .nav-scrim.is-open{ opacity:1; pointer-events:auto; }

  .hero-grid{ grid-template-columns: 1fr; }
  .hero-media{ order:-1; }
  .hero-actions .btn{ flex:1; }

  .problema-grid{ grid-template-columns:1fr; }

  .models-grid{ grid-template-columns: 1fr; max-width: 420px; margin:0 auto; }
  .control-grid{ grid-template-columns: 1fr; max-width: 420px; margin:0 auto; }
  .benefits-grid{ grid-template-columns: 1fr; }

  .footer-top{ flex-direction:column; gap: 2rem; }
}

@media (max-width: 480px){
  .hero-trust{ flex-direction:column; gap:.5rem; }
  .float-stack{ right: 12px; bottom: 12px; }
  .vbot-panel{ right:12px; }
}