/* ============================================================
   UNDER — landingunder.css
   B2B Landing | Mobile-first | Responsive
   Dominio: www.w61.ai | Versión 2.0 — Abril 2026
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Barlow+Condensed:wght@400;600;700&family=Barlow:ital,wght@0,300;0,400;0,600;1,400&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:        #0C0C0C;
  --surface:   #161616;
  --surface-2: #202020;
  --surface-3: #2A2A2A;
  --accent:    #E8B84B;
  --accent-lt: #F5D47A;
  --accent-dk: #B8901E;
  --text:      #EDE9E0;
  --muted:     #888078;
  --border:    #2A2A2A;

  --font-d: 'Bebas Neue', cursive;
  --font-c: 'Barlow Condensed', sans-serif;
  --font-b: 'Barlow', sans-serif;

  --r:     4px;
  --r-lg:  12px;
  --r-xl:  20px;
  --max-w: 1280px;
  --nav-h: 60px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-b);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  font-family: var(--font-c);
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .75rem 1.5rem;
  border-radius: var(--r);
  border: 2px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--accent); color: #0C0C0C; }
.btn--primary:hover {
  background: var(--accent-lt);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,184,75,.28);
}
.btn--outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--ghost   { background: rgba(255,255,255,.07); color: var(--text); }
.btn--ghost:hover { background: rgba(255,255,255,.13); }
.btn--lg  { padding: 1rem 2.25rem; font-size: .95rem; }
.btn--sm  { padding: .4rem .85rem;  font-size: .72rem; }

/* ── Nav ───────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(12,12,12,.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 1rem;
  padding: 0 1.25rem;
  transition: box-shadow .3s;
}
.nav--scrolled { box-shadow: 0 4px 24px rgba(0,0,0,.5); }

.nav__logo {
  font-family: var(--font-d);
  font-size: 1.9rem;
  color: var(--accent);
  letter-spacing: .06em;
  flex-shrink: 0;
  line-height: 1;
}
.nav__spacer { flex: 1; }

.nav__links { display: none; align-items: center; gap: 2rem; }
.nav__links a {
  font-family: var(--font-c);
  font-size: .78rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); transition: color .2s;
}
.nav__links a:hover { color: var(--accent); }

.nav__actions { display: flex; align-items: center; gap: .6rem; }
.nav__lang {
  font-family: var(--font-c);
  font-size: .7rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); padding: .28rem .55rem;
  border: 1px solid var(--border); border-radius: var(--r);
  transition: all .2s;
}
.nav__lang:hover { color: var(--accent); border-color: var(--accent); }

.nav__burger {
  display: flex; flex-direction: column; gap: 5px;
  padding: 6px; flex-shrink: 0;
}
.nav__burger span {
  display: block; width: 22px; height: 2px;
  background: var(--text); border-radius: 1px; transition: all .3s;
}
.nav__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.nav__drawer {
  display: none; position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem;
  z-index: 999;
  flex-direction: column; gap: .25rem;
  animation: slideDown .22s ease;
}
.nav__drawer.open { display: flex; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.nav__drawer a {
  font-family: var(--font-c); font-size: 1rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); padding: .8rem 0;
  border-bottom: 1px solid var(--border);
  transition: color .2s;
}
.nav__drawer a:hover { color: var(--accent); }
.nav__drawer .btn { margin-top: .6rem; width: 100%; }

/* ── Sections generic ──────────────────────────────────────── */
.section { padding: clamp(3.5rem,9vw,6rem) 1.25rem; }
.section--surface  { background: var(--surface); }
.section--surface2 { background: var(--surface-2); }
.section--dark     { background: var(--bg); }

.section__header { margin-bottom: clamp(2rem,5vw,3.5rem); }
.section__header--center { text-align: center; }
.section__header--center .section__desc { margin-left: auto; margin-right: auto; }

.eyebrow {
  display: block;
  font-family: var(--font-c); font-size: .7rem; font-weight: 700;
  letter-spacing: .3em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .75rem;
}
.section__title {
  font-family: var(--font-d);
  font-size: clamp(2.4rem,7vw,4.5rem);
  text-transform: uppercase; line-height: .96;
}
.section__title em { font-style: normal; color: var(--accent); }
.section__desc {
  margin-top: 1rem; font-size: .96rem;
  color: var(--muted); max-width: 560px; line-height: 1.75;
}

/* ── HERO ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh; min-height: 100vh;
  padding-top: var(--nav-h);
  display: flex; flex-direction: column; overflow: hidden;
}
.hero__media {
  position: absolute; inset: 0; z-index: 0;
}
.hero__media img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: center;
}
.hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(to top,  rgba(12,12,12,.95) 0%, rgba(12,12,12,.55) 45%, rgba(12,12,12,.2) 100%),
    linear-gradient(to right, rgba(12,12,12,.65) 0%, transparent 65%);
}
.hero__content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; justify-content: flex-end;
  flex: 1; padding: 3rem 1.25rem; max-width: 760px;
}
.hero__kicker {
  font-family: var(--font-c); font-size: .72rem; font-weight: 700;
  letter-spacing: .3em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .9rem;
  opacity: 0; animation: fadeUp .7s .1s ease forwards;
}
.hero__title {
  font-family: var(--font-d);
  font-size: clamp(3.5rem,13vw,7.5rem);
  line-height: .93; text-transform: uppercase;
  margin-bottom: 1.25rem;
  opacity: 0; animation: fadeUp .7s .25s ease forwards;
}
.hero__title em { font-style: normal; color: var(--accent); }
.hero__sub {
  font-size: clamp(.9rem,2.4vw,1.1rem);
  font-weight: 300; color: rgba(237,233,224,.82);
  max-width: 480px; margin-bottom: 2.25rem; line-height: 1.7;
  opacity: 0; animation: fadeUp .7s .4s ease forwards;
}
.hero__ctas {
  display: flex; flex-wrap: wrap; gap: .75rem;
  opacity: 0; animation: fadeUp .7s .55s ease forwards;
}
.hero__scroll {
  position: absolute; bottom: 2rem; right: 1.5rem; z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
}
.hero__scroll span {
  font-family: var(--font-c); font-size: .58rem; font-weight: 600;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--muted); writing-mode: vertical-lr;
}
.hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: pulseBar 2s ease-in-out infinite;
}
@keyframes pulseBar {
  0%,100% { opacity: .3; transform: scaleY(.7); transform-origin: top; }
  50%      { opacity: 1;   transform: scaleY(1); transform-origin: top; }
}

/* ── BADGE STRIP ───────────────────────────────────────────── */
.badge-strip {
  background: var(--accent);
  overflow: hidden; white-space: nowrap;
  padding: .7rem 0;
}
.badge-strip__track {
  display: inline-flex; gap: 0;
  animation: marquee 28s linear infinite;
}
.badge-strip__item {
  font-family: var(--font-d);
  font-size: 1.15rem;
  color: #0C0C0C;
  padding: 0 2.5rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.badge-strip__sep {
  color: rgba(12,12,12,.35);
  align-self: center;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── FRAMEWORK 2 CUADROS ───────────────────────────────────── */
.framework { display: grid; grid-template-columns: 1fr; gap: 1rem; }

.fw-card {
  position: relative; border-radius: var(--r-lg);
  overflow: hidden; min-height: 440px;
  display: flex; align-items: flex-end;
  cursor: pointer; transition: transform .3s;
}
.fw-card:hover { transform: translateY(-4px); }

.fw-card__img {
  position: absolute; inset: 0;
}
.fw-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s ease;
}
.fw-card:hover .fw-card__img img { transform: scale(1.04); }

.fw-card__grad {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12,12,12,.95) 0%, rgba(12,12,12,.25) 55%, transparent 100%);
  z-index: 1;
}
.fw-card__body { position: relative; z-index: 2; padding: 2rem; width: 100%; }

.fw-tag {
  display: inline-block;
  font-family: var(--font-c); font-size: .65rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  padding: .28rem .65rem; border-radius: 2px;
  margin-bottom: .65rem;
  background: var(--accent); color: #0C0C0C;
}
.fw-tag--outline {
  background: transparent; color: var(--accent);
  border: 1px solid var(--accent);
}

.fw-card__title {
  font-family: var(--font-d);
  font-size: clamp(2rem,6vw,3rem);
  text-transform: uppercase; line-height: 1;
  margin-bottom: .75rem;
}
.fw-card__text {
  font-size: .88rem; color: rgba(237,233,224,.72);
  line-height: 1.55; margin-bottom: 1.2rem; max-width: 340px;
}

/* ── STATS ──────────────────────────────────────────────────── */
.stats-strip {
  background: var(--accent);
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: .5rem; padding: 2.5rem 1.25rem; text-align: center;
}
.stat__num {
  font-family: var(--font-d);
  font-size: clamp(2.6rem,9vw,4.5rem);
  color: #0C0C0C; line-height: 1;
}
.stat__lbl {
  font-family: var(--font-c); font-size: .62rem; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase;
  color: rgba(12,12,12,.58); margin-top: .2rem;
}

/* ── CATALOG ────────────────────────────────────────────────── */
.catalog-filter {
  display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1.5rem;
}
.filter-btn {
  font-family: var(--font-c); font-size: .72rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .36rem .85rem; border-radius: 99px;
  border: 1px solid var(--border); color: var(--muted);
  background: transparent; transition: all .2s;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent); color: var(--accent);
  background: rgba(232,184,75,.08);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: .5rem;
}
.c-item {
  position: relative; aspect-ratio: 1;
  border-radius: var(--r); overflow: hidden;
  background: var(--surface-2); cursor: pointer;
}
.c-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.c-item:hover img { transform: scale(1.08); }
.c-item__hover {
  position: absolute; inset: 0; padding: .75rem;
  display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(to top, rgba(0,0,0,.82) 0%, transparent 55%);
  opacity: 0; transition: opacity .3s;
}
.c-item:hover .c-item__hover { opacity: 1; }
.c-item__name {
  font-family: var(--font-c); font-size: .72rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
}
.c-item__col { font-family: var(--font-c); font-size: .62rem; color: var(--accent); }
.c-item--wide { grid-column: span 2; aspect-ratio: 2.2/1; }
.catalog-cta  { text-align: center; margin-top: 2rem; }

/* ── PRODUCT DETAIL ─────────────────────────────────────────── */
.detail-wrap {
  display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center;
}
.detail-img {
  border-radius: var(--r-xl); overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.5);
}
.detail-img img { width: 100%; height: auto; object-fit: cover; }

.spec-list { display: flex; flex-direction: column; gap: .85rem; margin: 1.5rem 0; }
.spec-item {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: .9rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-lg);
  transition: border-color .25s;
}
.spec-item:hover { border-color: var(--accent); }
.spec-item__icon { font-size: 1.5rem; flex-shrink: 0; line-height: 1.2; }
.spec-item__title {
  font-family: var(--font-c); font-size: .85rem; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .15rem;
}
.spec-item__text { font-size: .83rem; color: var(--muted); line-height: 1.5; }

/* ── BENEFITS ───────────────────────────────────────────────── */
.benefits-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: .75rem;
}
.benefit {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 1.5rem 1.25rem;
  transition: border-color .25s, transform .25s;
}
.benefit:hover { border-color: var(--accent); transform: translateY(-3px); }
.benefit__icon { font-size: 2rem; margin-bottom: .75rem; }
.benefit__title {
  font-family: var(--font-c); font-size: .88rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .4rem;
}
.benefit__text { font-size: .83rem; color: var(--muted); line-height: 1.55; }

/* ── CHANNELS ───────────────────────────────────────────────── */
.channels-grid { display: grid; grid-template-columns: 1fr; gap: .75rem; }
.channel {
  display: flex; align-items: flex-start; gap: 1.25rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 1.5rem;
  transition: border-color .25s;
}
.channel:hover { border-color: var(--accent); }
.channel__icon { font-size: 2.25rem; flex-shrink: 0; line-height: 1; margin-top: .1rem; }
.channel__title {
  font-family: var(--font-c); font-size: 1.05rem; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase; margin-bottom: .3rem;
}
.channel__text { font-size: .875rem; color: var(--muted); line-height: 1.55; }

/* ── CUSTOMIZATION ──────────────────────────────────────────── */
.custom-wrap { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
.custom-visual { position: relative; border-radius: var(--r-xl); overflow: hidden; }
.custom-visual img { width: 100%; height: auto; object-fit: cover; }
.custom-badge {
  position: absolute; top: 1rem; left: 1rem;
  background: var(--accent); color: #0C0C0C;
  font-family: var(--font-c); font-size: .62rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  padding: .38rem .8rem; border-radius: 2px; z-index: 2;
}
.custom-list { display: flex; flex-direction: column; gap: .9rem; margin: 1.4rem 0; }
.custom-item { display: flex; gap: .9rem; align-items: flex-start; }
.custom-item__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0; margin-top: .55rem;
}
.custom-item__title {
  font-family: var(--font-c); font-size: .83rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  color: var(--text); margin-bottom: .15rem;
}
.custom-item__text { font-size: .82rem; color: var(--muted); line-height: 1.5; }

/* ── ABOUT ──────────────────────────────────────────────────── */
.about-wrap { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
.about-img { border-radius: var(--r-xl); overflow: hidden; }
.about-img img { width: 100%; height: auto; object-fit: cover; }
.about__lead {
  font-family: var(--font-c); font-size: clamp(1.05rem,2.8vw,1.3rem);
  font-weight: 400; line-height: 1.5; color: var(--text); margin-bottom: 1.2rem;
}
.about__body { font-size: .925rem; color: var(--muted); line-height: 1.8; margin-bottom: .9rem; }
.about__quote {
  border-left: 3px solid var(--accent); padding-left: 1.25rem;
  font-style: italic; font-size: 1rem; color: var(--text);
  line-height: 1.6; margin: 1.5rem 0;
}

/* ── CTA FINAL ──────────────────────────────────────────────── */
.cta-final {
  text-align: center;
  padding: clamp(5rem,12vw,9rem) 1.25rem;
  position: relative; overflow: hidden;
}
.cta-bg-text {
  position: absolute; font-family: var(--font-d);
  font-size: clamp(6rem,28vw,20rem);
  color: rgba(232,184,75,.04);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  white-space: nowrap; pointer-events: none;
  user-select: none; z-index: 0;
}
.cta-inner { position: relative; z-index: 1; }
.cta-final__title {
  font-family: var(--font-d);
  font-size: clamp(2.5rem,9vw,5.5rem);
  text-transform: uppercase; line-height: .95; margin-bottom: 1.2rem;
}
.cta-final__title em { font-style: normal; color: var(--accent); }
.cta-final__sub {
  font-size: 1rem; color: var(--muted); max-width: 440px;
  margin: 0 auto 2.5rem; line-height: 1.7;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center; }
.cta-contact {
  margin-top: 2.5rem; padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 1.5rem 2rem; justify-content: center;
}
.c-link {
  display: flex; align-items: center; gap: .5rem;
  font-family: var(--font-c); font-size: .8rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); transition: color .2s;
}
.c-link:hover { color: var(--accent); }
.c-link span { font-size: 1.1rem; }

/* ── FOOTER ─────────────────────────────────────────────────── */
.footer {
  background: #060606; border-top: 1px solid var(--border);
  padding: 2.5rem 1.25rem;
}
.footer__inner {
  display: flex; flex-direction: column;
  align-items: center; gap: 1.2rem; text-align: center;
}
.footer__logo {
  font-family: var(--font-d); font-size: 1.7rem;
  color: var(--accent); letter-spacing: .06em;
}
.footer__tag {
  font-family: var(--font-c); font-size: .68rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--muted);
}
.footer__links { display: flex; flex-wrap: wrap; gap: .75rem 2rem; justify-content: center; }
.footer__links a {
  font-family: var(--font-c); font-size: .7rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); transition: color .2s;
}
.footer__links a:hover { color: var(--text); }
.footer__div { width: 100%; height: 1px; background: var(--border); }
.footer__copy { font-size: .68rem; color: var(--surface-3); }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal--d1 { transition-delay: .1s; }
.reveal--d2 { transition-delay: .22s; }
.reveal--d3 { transition-delay: .34s; }
.reveal--d4 { transition-delay: .46s; }

/* ── RESPONSIVE — tablet ≥ 640px ─────────────────────────────── */
@media (min-width: 640px) {
  .framework   { grid-template-columns: 1fr 1fr; }
  .fw-card     { min-height: 480px; }
  .catalog-grid { grid-template-columns: repeat(3,1fr); }
  .c-item--wide { aspect-ratio: 3/1; grid-column: span 3; }
  .channels-grid { grid-template-columns: 1fr 1fr; }
  .custom-wrap { grid-template-columns: 1fr 1fr; }
  .about-wrap  { grid-template-columns: 1fr 1fr; }
  .detail-wrap { grid-template-columns: 1fr 1fr; }
  .benefits-grid { grid-template-columns: repeat(2,1fr); }
}

/* ── RESPONSIVE — desktop ≥ 1024px ──────────────────────────── */
@media (min-width: 1024px) {
  .container   { padding: 0 2.5rem; }
  .section     { padding-left: 2.5rem; padding-right: 2.5rem; }
  .nav         { padding: 0 2.5rem; }
  .nav__links  { display: flex; }
  .nav__burger { display: none; }
  .hero__content { padding: 4rem 2.5rem; }
  .catalog-grid { grid-template-columns: repeat(4,1fr); }
  .c-item--wide { grid-column: span 2; aspect-ratio: 2.2/1; }
  .benefits-grid { grid-template-columns: repeat(4,1fr); }
  .channels-grid { grid-template-columns: repeat(2,1fr); }
  .custom-wrap { grid-template-columns: 1fr 1.1fr; gap: 5rem; }
  .about-wrap  { grid-template-columns: .9fr 1fr; gap: 5rem; }
  .detail-wrap { grid-template-columns: 1fr 1.15fr; gap: 5rem; }
  .stats-strip { padding: 3rem 2.5rem; }
}

/* ── RESPONSIVE — wide ≥ 1280px ─────────────────────────────── */
@media (min-width: 1280px) {
  .fw-card { min-height: 560px; }
}