/* ==========================================================
   Containers del Sur — estilos
   Arquetipo: industrial editorial · paleta del logo (grafito + verde)
   ========================================================== */

:root {
  --char: #181c1f;       /* grafito del logo */
  --char-2: #202529;
  --char-3: #2b3136;
  --green: #2f8f2c;      /* verde del logo */
  --green-l: #47ad3f;
  --green-d: #1f6b1c;
  --green-t: rgba(47, 143, 44, .12);
  --paper: #f6f7f5;
  --stone: #eceeea;
  --ink: #181c1f;
  --muted: #5b636a;
  --line: rgba(24, 28, 31, .12);

  --font-display: "Saira", "Arial Black", Impact, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --radius: 14px;
  --wrap: 1200px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; line-height: 1.05; }
p { margin: 0 0 1em; }
strong { color: var(--ink); font-weight: 600; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.accent { color: var(--green); }

.skip {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--green); color: #fff; padding: 8px 14px; border-radius: 8px;
}
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; border-radius: 4px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 22px; border-radius: 10px; border: 2px solid transparent;
  font: 600 16px/1 var(--font-body); text-decoration: none; cursor: pointer;
  transition: transform .25s var(--ease), background-color .25s, box-shadow .25s, color .25s, border-color .25s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 10px 16px; font-size: 14px; }
.btn--lg { padding: 18px 26px; font-size: 17px; }
.btn--block { width: 100%; }
.btn--wa { background: var(--green); color: #fff; box-shadow: 0 12px 26px -12px rgba(47, 143, 44, .8); }
.btn--wa:hover { background: var(--green-l); box-shadow: 0 18px 32px -14px rgba(47, 143, 44, .9); }
.btn--ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--ghost:hover { background: var(--ink); color: #fff; }
.ico { width: 20px; height: 20px; flex: none; }

/* ---------- Navegación ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background-color .3s, box-shadow .3s, padding .3s;
  padding: 16px 0;
}
.nav.is-scrolled {
  background: rgba(246, 247, 245, .92);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
  padding: 8px 0;
}
.nav__inner { display: flex; align-items: center; gap: 28px; }
.nav__links { display: flex; gap: 26px; margin-left: auto; }
.nav__links a { text-decoration: none; font-weight: 500; font-size: 15px; position: relative; padding: 4px 0; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav__links a:hover::after { transform: scaleX(1); }
.nav__burger { display: none; }

.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.logo__mark { width: 50px; height: auto; }
.logo__text {
  font-family: var(--font-display); font-weight: 900; font-size: 20px;
  letter-spacing: .02em; text-transform: uppercase; line-height: .95; display: flex; flex-direction: column;
}
.logo__text b { color: var(--green); font-weight: 800; font-size: .72em; letter-spacing: .28em; }

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: 130px 0 0; overflow: hidden;
  background:
    radial-gradient(900px 520px at 88% 30%, var(--green-t), transparent 60%),
    linear-gradient(180deg, var(--stone), var(--paper));
}
.hero::before { /* grilla técnica sutil */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
  opacity: .45;
}
.hero__grid {
  position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
  padding-bottom: 84px;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 22px;
  font-weight: 600; font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
  background: rgba(255, 255, 255, .75); border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); animation: ping 2s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(47, 143, 44, .6); } 80%, 100% { box-shadow: 0 0 0 10px rgba(47, 143, 44, 0); } }

.hero__title {
  font-family: var(--font-display); font-weight: 900; text-transform: uppercase;
  font-size: clamp(40px, 5.6vw, 80px); line-height: .95; letter-spacing: -.01em;
}
.hero__lead { max-width: 560px; font-size: 18.5px; color: var(--muted); margin: 26px 0 32px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__ticks { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; padding: 0; margin: 28px 0 0; font-size: 14px; font-weight: 500; color: var(--muted); }
.hero__ticks li { display: flex; align-items: center; gap: 8px; }
.hero__ticks li::before { content: ""; width: 16px; height: 16px; border-radius: 50%; background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat; }

/* Foto del hero con marco y chevron verde (eco del logo) */
.hero__art { position: relative; perspective: 1400px; padding: 0 0 34px; }
.hero__photo {
  margin: 0; position: relative; z-index: 2; border-radius: 18px; overflow: hidden;
  box-shadow: 0 40px 70px -35px rgba(24, 28, 31, .6), 0 0 0 1px rgba(24, 28, 31, .06);
  transition: transform .6s var(--ease);
  transform-style: preserve-3d;
}
.hero__photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transform: scale(1.02); }
.hero__chevron { /* la "U" verde del logo, detrás de la foto */
  position: absolute; z-index: 1; left: 8%; right: 8%; bottom: 0; height: 60%;
  border: 14px solid var(--green); border-top: 0;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  border-radius: 0 0 14px 14px;
}
.hero__badge {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 10px;
  background: #fff; border-radius: 12px; padding: 10px 16px 10px 10px; font-weight: 600; font-size: 14px;
  box-shadow: 0 18px 36px -16px rgba(24, 28, 31, .45);
  animation: float 6s ease-in-out infinite;
}
.hero__badge-k {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: 13px; letter-spacing: .08em;
  background: var(--char); color: #fff; padding: 6px 10px; border-radius: 8px;
}
.hero__badge--a { left: -22px; top: 14%; }
.hero__badge--b { right: -18px; bottom: 16%; animation-delay: -3s; }
.hero__badge--b .hero__badge-k { background: var(--green); }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* Cinta de usos */
.ticker { position: relative; background: var(--char); color: #fff; overflow: hidden; padding: 16px 0; border-top: 4px solid var(--green); }
.ticker__track { display: flex; width: max-content; animation: marquee 36s linear infinite; }
.ticker span {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: 22px; letter-spacing: .05em;
  padding: 0 26px; display: inline-flex; align-items: center; white-space: nowrap;
}
.ticker span::after { content: ""; width: 9px; height: 9px; background: var(--green); transform: rotate(45deg); margin-left: 52px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Secciones ---------- */
.section { padding: 120px 0; position: relative; }
.section__head { max-width: 780px; margin-bottom: 56px; }
.section__sub { color: var(--muted); margin-top: 18px; font-size: 18px; }
.kicker { font-weight: 700; font-size: 13px; letter-spacing: .16em; text-transform: uppercase; color: var(--green); margin-bottom: 16px; }
.h2 {
  font-family: var(--font-display); font-weight: 900; text-transform: uppercase;
  font-size: clamp(34px, 4.4vw, 58px); line-height: 1; letter-spacing: -.005em;
}
.h2--light { color: #fff; }

/* Quiénes somos */
.about { padding-bottom: 0; }
.about__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.about__head { position: sticky; top: 110px; }
.about__body { color: var(--muted); }
.about__body .big { font-size: clamp(20px, 2.1vw, 25px); line-height: 1.4; color: var(--ink); font-weight: 500; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.value {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.value:hover { transform: translateY(-4px); box-shadow: 0 18px 30px -20px rgba(24, 28, 31, .35); border-color: rgba(47, 143, 44, .5); }
.value__ico { width: 34px; height: 34px; color: var(--green); margin-bottom: 14px; }
.value h3 { font-size: 17px; color: var(--ink); margin-bottom: 6px; line-height: 1.25; }
.value p { font-size: 15px; margin: 0; line-height: 1.5; }

.banner {
  position: relative; margin: 96px auto 0; max-width: 1400px; overflow: hidden;
  border-radius: 22px; width: calc(100% - 48px);
}
.banner img { width: 100%; aspect-ratio: 21 / 9; object-fit: cover; }
.banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(24, 28, 31, .82) 0%, rgba(24, 28, 31, .35) 45%, transparent 70%); }
.banner figcaption {
  position: absolute; z-index: 2; left: clamp(22px, 5vw, 64px); bottom: clamp(22px, 5vw, 56px); max-width: 480px;
  color: #fff; font-family: var(--font-display); font-weight: 800; text-transform: uppercase;
  font-size: clamp(20px, 2.6vw, 34px); line-height: 1.08;
}
.banner__k {
  display: inline-block; margin-bottom: 14px; font-size: 13px; letter-spacing: .14em;
  background: var(--green); padding: 6px 12px; border-radius: 6px;
}

/* Dry y Reefer */
.types__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.type {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 22px; overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s;
}
.type:hover { transform: translateY(-6px); box-shadow: 0 34px 60px -34px rgba(24, 28, 31, .5); }
.type__img { position: relative; overflow: hidden; }
.type__img img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .8s var(--ease); }
.type:hover .type__img img { transform: scale(1.05); }
.type__tag {
  position: absolute; left: 18px; top: 18px; display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: 15px;
  background: var(--char); color: #fff; padding: 8px 14px; border-radius: 8px;
}
.type__tag svg { width: 16px; height: 16px; }
.type__tag--cold { background: #fff; color: var(--char); box-shadow: 0 8px 20px -10px rgba(0, 0, 0, .4); }
.type__tag--cold svg { color: #2a7fbf; }
.type__body { padding: 30px 32px 34px; display: flex; flex-direction: column; flex: 1; }
.type__body h3 { font-family: var(--font-display); font-weight: 900; text-transform: uppercase; font-size: 30px; margin-bottom: 12px; }
.type__body h3 small { font-size: .55em; color: var(--green); letter-spacing: .08em; }
.type__body > p { color: var(--muted); }
.type__list { list-style: none; padding: 0; margin: 4px 0 28px; display: grid; gap: 10px; }
.type__list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; }
.type__list li::before { content: ""; flex: none; width: 10px; height: 10px; margin-top: 7px; background: var(--green); transform: rotate(45deg); }
.type .btn { margin-top: auto; align-self: flex-start; }

/* Servicios */
.services { background: var(--char); color: #b9c0c6; overflow: hidden; }
.services::before { /* chapa corrugada de fondo */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .6;
  background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .025) 0 14px, rgba(0, 0, 0, .14) 14px 22px, transparent 22px 36px);
}
.services .wrap { position: relative; }
.services .accent, .quote .accent, .footer .accent { color: var(--green-l); }
.services .kicker, .quote .kicker { color: var(--green-l); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  position: relative; background: var(--char-2); border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--radius);
  padding: 30px 26px 32px; overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s, background-color .35s;
}
.card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--green);
  transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: rgba(71, 173, 63, .5); background: var(--char-3); }
.card:hover::after { transform: scaleX(1); }
.card__num {
  position: absolute; right: 18px; top: 8px; font-family: var(--font-display); font-weight: 900;
  font-size: 68px; line-height: 1; color: rgba(255, 255, 255, .05);
}
.card__ico { width: 42px; height: 42px; color: var(--green-l); margin-bottom: 26px; }
.card h3 { color: #fff; font-size: 20px; margin-bottom: 12px; line-height: 1.2; }
.card p { font-size: 15.5px; margin: 0; line-height: 1.55; }
.services__cta {
  margin-top: 48px; display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; justify-content: space-between;
  padding: 26px 30px; border-radius: var(--radius); border: 1px dashed rgba(255, 255, 255, .22);
}
.services__cta p { margin: 0; color: #fff; font-size: 18px; font-weight: 500; }

/* Medidas */
.sizes__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.size {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s;
}
.size:hover { transform: translateY(-6px); box-shadow: 0 28px 50px -30px rgba(24, 28, 31, .45); }
.size__art { overflow: hidden; background: var(--stone); }
.size__art img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; transition: transform .8s var(--ease); }
.size:hover .size__art img { transform: scale(1.05); }
.size__info { padding: 30px 34px 34px; display: flex; flex-direction: column; flex: 1; }
.size__info h3 { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: 26px; margin-bottom: 10px; }
.size__big { font-size: 56px; color: var(--green); font-weight: 900; }
.size__desc { color: var(--muted); }
.specs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 8px 0 26px; }
.specs div { border-top: 2px solid var(--ink); padding-top: 10px; }
.specs dt { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.specs dd { margin: 2px 0 0; font-family: var(--font-display); font-weight: 800; font-size: 21px; }
.link-wa { margin-top: auto; font-weight: 600; color: var(--green-d); text-decoration: none; }
.link-wa:hover { text-decoration: underline; }

/* Cómo funciona */
.steps { background: var(--stone); }
.steps__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { position: relative; padding: 34px 30px; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); }
.step__n {
  display: inline-grid; place-items: center; width: 64px; height: 64px; border-radius: 50%;
  font-family: var(--font-display); font-weight: 900; font-size: 30px; color: #fff; background: var(--char);
  margin-bottom: 22px; box-shadow: 0 0 0 6px var(--green-t);
}
.step:not(:last-child)::after {
  content: ""; position: absolute; right: -19px; top: 64px; width: 14px; height: 14px; z-index: 2;
  border-top: 3px solid var(--green); border-right: 3px solid var(--green); transform: rotate(45deg);
}
.step h3 { font-size: 21px; margin-bottom: 10px; line-height: 1.2; }
.step p { color: var(--muted); margin: 0; }

/* Presupuesto */
.quote { background: var(--char); color: #b9c0c6; overflow: hidden; }
.quote::before {
  content: ""; position: absolute; width: 760px; height: 760px; right: -220px; top: -220px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(47, 143, 44, .25), transparent); pointer-events: none;
}
.quote__grid { position: relative; display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.quote__lead { font-size: 18px; margin: 24px 0 32px; max-width: 460px; }
.form {
  background: var(--paper); color: var(--ink); border-radius: 22px; padding: 34px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px 16px;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .7);
}
.field { grid-column: 1 / -1; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field--half { grid-column: span 1; }
.field label, .label { font-weight: 600; font-size: 14px; }
.opt { color: var(--muted); font-weight: 400; }
.form input[type="text"], .form select, .form textarea {
  width: 100%; font: 16px var(--font-body); color: var(--ink); background: #fff;
  border: 1.5px solid var(--line); border-radius: 10px; padding: 13px 14px; transition: border-color .2s, box-shadow .2s;
}
.form textarea { resize: vertical; min-height: 84px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 4px var(--green-t); }
.chips { display: flex; gap: 10px; flex-wrap: wrap; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span {
  display: inline-block; padding: 10px 18px; border-radius: 999px; border: 1.5px solid var(--line); background: #fff;
  font-weight: 600; font-size: 15px; transition: background-color .2s, color .2s, border-color .2s;
}
.chip input:checked + span { background: var(--char); color: #fff; border-color: var(--char); }
.chip input:focus-visible + span { outline: 3px solid var(--green); outline-offset: 2px; }
.form .btn { grid-column: 1 / -1; margin-top: 6px; }
.form__note { grid-column: 1 / -1; font-size: 13px; color: var(--muted); margin: 0; text-align: center; }

/* FAQ */
.faq__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.faq__list details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq__list summary {
  list-style: none; cursor: pointer; padding: 22px 44px 22px 0; position: relative;
  font-weight: 600; font-size: 18.5px;
}
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-weight: 800; font-size: 32px; color: var(--green); transition: transform .3s var(--ease);
}
.faq__list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__list details p { color: var(--muted); padding-bottom: 20px; margin: 0; max-width: 620px; }

/* Footer */
.footer { background: var(--char); color: #8f989f; border-top: 4px solid var(--green); }
.footer__top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 32px; padding-top: 90px; padding-bottom: 70px; }
.footer__big {
  margin: 0; font-family: var(--font-display); font-weight: 900; text-transform: uppercase; color: #fff;
  font-size: clamp(38px, 5.6vw, 76px); line-height: .95;
}
.footer__bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px;
  padding-top: 30px; padding-bottom: 96px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 14px;
}
.footer__bottom p { margin: 0; }
.footer__logo img { width: 150px; }

/* Botón flotante WhatsApp */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  display: flex; align-items: center; gap: 10px; text-decoration: none;
  background: var(--green); color: #fff; border-radius: 999px; padding: 14px;
  box-shadow: 0 14px 30px -10px rgba(47, 143, 44, .85);
  transition: transform .3s var(--ease), padding .3s var(--ease), background-color .3s;
}
.wa-float:hover { background: var(--green-l); }
.wa-float svg { width: 30px; height: 30px; }
.wa-float__label {
  max-width: 0; overflow: hidden; white-space: nowrap; font-weight: 700;
  transition: max-width .4s var(--ease);
}
.wa-float:hover { transform: translateY(-3px); padding-right: 22px; }
.wa-float:hover .wa-float__label, .wa-float.is-hint .wa-float__label { max-width: 140px; }
.wa-float.is-hint { padding-right: 22px; }
.wa-float::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; border: 2px solid var(--green);
  animation: ring 2.4s ease-out infinite; pointer-events: none;
}
@keyframes ring { 0% { transform: scale(1); opacity: .8; } 100% { transform: scale(1.35); opacity: 0; } }

/* ---------- Aparición al hacer scroll (solo si hay JS) ---------- */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-in, .reveal-all .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
  .nav__links { gap: 18px; }
}

@media (max-width: 900px) {
  body { font-size: 16px; }
  .section { padding: 84px 0; }
  .about { padding-bottom: 0; }
  .nav__links {
    position: fixed; inset: 0 0 auto 0; top: 0; padding: 96px 24px 32px; flex-direction: column; gap: 6px;
    background: var(--paper); box-shadow: 0 20px 40px -20px rgba(24, 28, 31, .35);
    transform: translateY(-110%); transition: transform .4s var(--ease); margin: 0;
  }
  .nav__links a { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: 26px; padding: 6px 0; }
  .nav__links.is-open { transform: none; }
  .nav__cta { margin-left: auto; }
  .nav__burger {
    display: grid; place-content: center; gap: 6px; width: 44px; height: 44px; border: 0; border-radius: 10px;
    background: var(--char); cursor: pointer; position: relative; z-index: 2;
  }
  .nav__burger span { display: block; width: 20px; height: 2px; background: #fff; transition: transform .3s; }
  .nav__burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav__burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .logo, .nav__cta { position: relative; z-index: 2; }

  .hero { padding-top: 104px; }
  .hero__grid, .about__grid, .quote__grid, .faq__grid, .types__grid { grid-template-columns: 1fr; gap: 40px; }
  .hero__grid { padding-bottom: 56px; }
  .hero__art { order: -1; max-width: 560px; width: 100%; margin: 0 auto; }
  .hero__badge--a { left: 8px; top: 10px; }
  .hero__badge--b { right: 8px; bottom: 44px; }
  .about__head { position: static; }
  .banner { margin-top: 64px; width: calc(100% - 32px); }
  .banner img { aspect-ratio: 4 / 3; }
  .banner::after { background: linear-gradient(0deg, rgba(24, 28, 31, .85) 0%, rgba(24, 28, 31, .2) 60%, transparent 80%); }
  .sizes__grid { grid-template-columns: 1fr; }
  .steps__list { grid-template-columns: 1fr; }
  .step:not(:last-child)::after { right: auto; left: 50%; top: auto; bottom: -19px; transform: translateX(-50%) rotate(135deg); }
}

@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .nav__cta span { display: none; }
  .nav__cta { padding: 10px; }
  .logo__mark { width: 42px; }
  .logo__text { font-size: 17px; }
  .hero__actions .btn { width: 100%; white-space: normal; text-align: center; }
  .hero__badge { font-size: 12.5px; padding: 8px 12px 8px 8px; }
  .cards { grid-template-columns: 1fr; }
  .specs { grid-template-columns: repeat(2, 1fr); }
  .size__info, .type__body { padding: 24px 22px 28px; }
  .type .btn { align-self: stretch; }
  .form { padding: 22px; grid-template-columns: 1fr; }
  .field--half { grid-column: 1 / -1; }
  .services__cta { padding: 22px; }
  .services__cta .btn, .footer__top .btn, .quote__copy .btn { width: 100%; white-space: normal; }
  .ticker span { font-size: 18px; }
  .wa-float { right: 14px; bottom: 14px; }
}

/* Movimiento reducido: solo apagamos lo intrusivo (cinta, flotación, pulsos) */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ticker__track, .hero__badge, .wa-float::before, .dot { animation: none; }
}