:root{
  --beige-50:  #F7F1E9;
  --beige-200: #E4D4C1;
  --beige-300: #C8B29A; /* R200 G178 B154 - color principal manual */
  --brown-600: #998671; /* R153 G134 B117 - color solido manual */
  --brown-700: #6f6153;
  --gold:      #C49A6C; /* dorado usado en titulos del manual */
  --gold-dark: #8a6a45;
  --ink:       #1B1815; /* negro del logotipo */
  --ink-soft:  #2b2621;
  --paper:     #FBF8F4;
  --white:     #ffffff;

  --font-round: 'Baloo 2', 'Arial Rounded MT Bold', ui-rounded, sans-serif;
  --font-heavy: 'Archivo Black', 'Franklin Gothic Heavy', 'Arial Black', sans-serif;

  --radius-lg: 28px;
  --radius-md: 16px;
  --shadow-soft: 0 20px 45px rgba(27,24,21,.18);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: var(--font-round);
  color:var(--ink);
  background:var(--paper);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
.container{ width:min(1140px, 92%); margin-inline:auto; }
.container--wide{ width:min(1440px, 96%); }
.section__hint{ font-size:.9rem; color:var(--brown-700); margin-top:-.4rem; }
.section__head--light .section__hint{ color:rgba(255,255,255,.65); }
h1,h2,h3{ font-family:var(--font-round); font-weight:800; margin:0 0 .5em; line-height:1.12; }
p{ margin:0 0 1em; }
a{ color:inherit; text-decoration:none; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  font-family:var(--font-heavy);
  letter-spacing:.03em;
  padding:.9em 1.6em;
  border-radius:999px;
  font-size:.95rem;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  border:none; cursor:pointer;
}
.btn--nav{
  background:var(--ink);
  color:var(--white);
  padding:.7em 1.4em;
  font-size:.8rem;
}
.btn--nav:hover{ background:var(--gold); color:var(--ink); }

.btn--gold{
  background:var(--gold);
  color:var(--ink);
}
.btn--gold:hover{ transform:translateY(-3px); }

.btn--ink{
  background:var(--ink);
  color:var(--white);
}
.btn--ink:hover{ transform:translateY(-3px); background:#000; }

.btn--lg{ padding:1.05em 2.1em; font-size:1.05rem; }

/* ---------- Nav ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(251,248,244,.9);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(27,24,21,.08);
}
.nav__inner{
  width:min(1140px,92%); margin-inline:auto;
  display:flex; align-items:center; justify-content:space-between;
  gap:1.5rem;
  padding:.7rem 0;
}
.nav__brand{ display:flex; align-items:center; gap:.6rem; font-family:var(--font-heavy); font-size:.95rem; flex-shrink:0; }
.nav__mark{ height:44px; width:auto; }
.nav__brand em{ font-style:normal; color:var(--brown-700); display:block; font-size:.75em; }
.nav__links{ display:flex; gap:1.6rem; flex:1; justify-content:center; font-size:.88rem; font-weight:600; }
.nav__links a{ position:relative; padding:.3em 0; }
.nav__links a:hover{ color:var(--gold-dark); }
.nav__links-cta{ display:none; }

.nav__burger{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  width:40px; height:40px;
  background:none; border:none; cursor:pointer;
  flex-shrink:0;
}
.nav__burger span{
  display:block; width:22px; height:2px; background:var(--ink);
  transition:transform .25s ease, opacity .25s ease;
}
.nav__burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav__burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ---------- Floating CTA (solo móvil) ---------- */
.floating-cta{
  display:none;
  position:fixed;
  right:1rem; bottom:1rem;
  z-index:60;
  background:var(--ink);
  color:var(--white);
  font-family:var(--font-heavy);
  font-size:.75rem;
  letter-spacing:.03em;
  padding:.7em 1.2em;
  border-radius:999px;
  opacity:.9;
}

/* ---------- Hero ---------- */
.hero{
  position:relative; color:var(--white); overflow:hidden;
  background:linear-gradient(155deg, var(--ink) 0%, var(--ink-soft) 55%, #241f1b 100%);
}
.hero__content{ position:relative; z-index:2; padding:3.2rem 0 2.8rem; width:min(1140px,92%); margin-inline:auto; }
.eyebrow{
  font-family:var(--font-heavy);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.75rem;
  color:var(--gold);
  margin-bottom:.8em;
}
.eyebrow--dark{ color:var(--brown-700); }
.hero h1{
  font-size:clamp(2.1rem, 4.6vw, 3.4rem);
  max-width:16ch;
}
.hero h1 span{ color:var(--gold); }

.hero__grid{
  display:grid; grid-template-columns:1.3fr .7fr; gap:2.5rem;
  align-items:start;
}
.hero__text p{ font-size:1.05rem; color:rgba(255,255,255,.9); }
.hero__video{ max-width:320px; margin-inline:auto; width:100%; }
.hero__video video{
  width:100%; border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  aspect-ratio:9/16; object-fit:cover; background:#000;
}

/* ---------- Sections ---------- */
.section{ padding:3.4rem 0; }
.section--dark{ background:var(--ink); color:var(--white); }
.section--beige{ background:var(--beige-50); }
.section__head{ max-width:64ch; margin-bottom:2rem; }
.section__head--light .eyebrow{ color:var(--gold); }
.section h2{ font-size:clamp(1.6rem, 3.2vw, 2.4rem); }
.lead{ font-size:1.1rem; color:var(--brown-700); }
.section--dark .lead, .section--dark p{ color:rgba(255,255,255,.82); }

/* ---------- Proyecto ---------- */
.proyecto__grid{
  display:grid; grid-template-columns:1.3fr .8fr; gap:3rem; align-items:center;
}
.proyecto__meta{ font-size:.9rem; color:var(--brown-700); margin-top:1rem; }
.proyecto__photo{ position:relative; }
.proyecto__photo img{
  width:100%; aspect-ratio:4/5; object-fit:cover;
  border-radius:var(--radius-lg); box-shadow:var(--shadow-soft);
}
.proyecto__photo-cap{
  display:block; text-align:center; margin-top:.8rem;
  font-size:.85rem; color:var(--brown-700); font-weight:600;
}

/* ---------- Highlight stats ---------- */
.highlight-stats{
  display:flex; gap:1.2rem; margin:1.8rem 0; flex-wrap:wrap;
}
.highlight-stat{
  background:var(--white);
  border:2px solid var(--beige-200);
  border-radius:var(--radius-md);
  padding:1.6rem;
  flex:1 1 260px;
  display:flex;
  align-items:center;
  min-height:120px;
}
.highlight-stat--accent{
  background:var(--ink); border-color:var(--ink);
}
.highlight-stat--accent .highlight-stat__text{ color:rgba(255,255,255,.85); }
.highlight-stat--accent .highlight-stat__num{ color:var(--white); }
.highlight-stat__text{
  margin:0; font-size:1.05rem; color:var(--brown-700); line-height:1.3;
  display:flex; flex-direction:column;
}
.highlight-stat__line{ display:block; }
.highlight-stat__num{
  font-family:var(--font-heavy);
  font-size:2.6rem;
  color:var(--ink);
  line-height:1.15;
  display:block;
  margin:.1em 0;
}

/* ---------- Carousel (galeria) ---------- */
.carousel{
  display:flex; align-items:center; gap:1rem;
}
.carousel__viewport{ overflow:hidden; flex:1; min-width:0; }
.carousel__track{ display:flex; transition:transform .5s ease; will-change:transform; }
.carousel__slide{ flex:0 0 33.3333%; padding:0 .5rem; box-sizing:border-box; }
.carousel__slide img{
  width:100%; aspect-ratio:4/3; object-fit:cover;
  border-radius:var(--radius-md);
  cursor:pointer;
  transition:transform .25s ease;
}
.carousel__slide img:hover{ transform:scale(1.02); }
.carousel__arrow{
  background:var(--ink); color:var(--white); border:none;
  width:48px; height:48px; border-radius:50%;
  font-size:1.3rem; cursor:pointer; flex-shrink:0;
  transition:background .18s ease, color .18s ease, transform .18s ease;
}
.carousel__arrow:hover{ background:var(--gold); color:var(--ink); transform:scale(1.08); }
.caption{ margin-top:1.2rem; font-size:.85rem; color:var(--brown-700); text-align:right; }

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed; inset:0; z-index:200;
  background:rgba(10,8,7,.92);
  display:none; align-items:center; justify-content:center;
  padding:3rem 2rem;
}
.lightbox.is-open{ display:flex; }
.lightbox img{
  max-width:92vw; max-height:88vh;
  width:auto; height:auto;
  border-radius:var(--radius-md);
  box-shadow:0 30px 80px rgba(0,0,0,.6);
}
.lightbox__close{
  position:absolute; top:1.4rem; right:1.6rem;
  background:none; border:none; color:var(--white);
  font-size:2.6rem; line-height:1; cursor:pointer;
}
.lightbox__close:hover{ color:var(--gold); }
.lightbox__arrow{
  position:absolute; top:50%; transform:translateY(-50%);
  background:rgba(255,255,255,.12); color:var(--white); border:none;
  width:56px; height:56px; border-radius:50%;
  font-size:1.5rem; cursor:pointer;
  transition:background .18s ease, color .18s ease;
}
.lightbox__arrow:hover{ background:var(--gold); color:var(--ink); }
.lightbox__arrow--prev{ left:1.6rem; }
.lightbox__arrow--next{ right:1.6rem; }
@media (max-width:640px){
  .lightbox__arrow{ width:44px; height:44px; font-size:1.2rem; }
  .lightbox__arrow--prev{ left:.6rem; }
  .lightbox__arrow--next{ right:.6rem; }
}

/* ---------- Timeline (que pasa) ---------- */
.timeline{
  display:flex; position:relative; justify-content:space-between; gap:2.4rem;
  padding-top:.6rem;
}
.timeline::before{
  content:""; position:absolute; top:19px; left:5%; right:5%;
  height:2px; background:rgba(255,255,255,.2);
}
.timeline__item{ position:relative; flex:1; padding-top:3.4rem; text-align:center; }
.timeline__dot{
  position:absolute; top:0; left:50%; transform:translateX(-50%);
  width:40px; height:40px; border-radius:50%;
  background:var(--gold); color:var(--ink);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-heavy); font-size:1.1rem;
  box-shadow:0 0 0 6px rgba(196,154,108,.18);
}

/* ---------- Steps ---------- */
.steps{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1.4rem;
  margin-bottom:2rem;
}
.step{
  background:var(--white); border-radius:var(--radius-md);
  padding:1.8rem; box-shadow:0 10px 30px rgba(27,24,21,.06);
}
.step__num{
  display:inline-flex; align-items:center; justify-content:center;
  width:2.4rem; height:2.4rem; border-radius:50%;
  background:var(--ink); color:var(--white);
  font-family:var(--font-heavy); margin-bottom:1rem;
}
.step h3{ font-size:1.1rem; margin-bottom:.3em; }
.step p{ color:var(--brown-700); margin:0; }
.step__btn{ margin-top:1.2rem; font-size:.85rem; padding:.7em 1.4em; }

/* ---------- CTA Hero (banner llamativo) ---------- */
.cta-hero{
  position:relative;
  display:grid; grid-template-columns:.9fr 1.1fr;
  align-items:center;
  gap:2rem;
  background:linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  border-radius:var(--radius-lg);
  padding:3.5rem 3rem;
  overflow:hidden;
  color:var(--white);
}
.cta-hero__watermark{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-heavy);
  font-size:min(18vw, 12rem);
  color:rgba(255,255,255,.14);
  white-space:nowrap;
  pointer-events:none;
  z-index:0;
  letter-spacing:.02em;
}
.cta-hero__img{
  position:relative; z-index:1;
  width:100%; aspect-ratio:4/3; object-fit:cover;
  border-radius:var(--radius-md);
  box-shadow:0 25px 50px rgba(0,0,0,.35);
  transform:rotate(-2deg);
}
.cta-hero__content{ position:relative; z-index:1; }
.cta-hero__content .eyebrow{ color:var(--white); opacity:.85; }
.cta-hero__content h2{ font-size:clamp(1.8rem, 3.4vw, 2.6rem); color:var(--white); }
.cta-hero__content p{ font-size:1.05rem; max-width:36ch; color:rgba(255,255,255,.92); }

/* ---------- Footer ---------- */
.footer{ background:var(--ink); color:var(--white); padding:3rem 0 2rem; text-align:center; }
.footer__logo{ height:70px; width:auto; margin:0 auto 1.2rem; }
.footer__quote{ font-size:1.4rem; margin:0; line-height:1.35; }
.footer__quote-sub{ display:inline-block; margin-top:.5rem; color:var(--gold); font-size:1.1rem; }
.footer__social{ display:flex; justify-content:center; gap:1.6rem; margin-top:2rem; flex-wrap:wrap; font-size:.9rem; }
.footer__social a{ border-bottom:1px solid rgba(255,255,255,.3); padding-bottom:2px; }
.footer__social a:hover{ color:var(--gold); border-color:var(--gold); }
.footer__credit{ margin-top:2.5rem; font-size:.8rem; color:rgba(255,255,255,.5); }
.footer .btn{ margin-top:1rem; }

/* ---------- Responsive ---------- */
@media (max-width: 960px){
  .nav__cta-desktop{ display:none; }
  .nav__burger{ display:flex; }

  .nav__links{
    position:fixed;
    top:65px; left:0; right:0;
    flex-direction:column;
    gap:0;
    background:var(--paper);
    border-bottom:1px solid rgba(27,24,21,.08);
    box-shadow:0 16px 30px rgba(27,24,21,.1);
    justify-content:flex-start;
    max-height:0;
    overflow:hidden;
    opacity:0;
    transition:max-height .3s ease, opacity .25s ease;
  }
  .nav__links.is-open{ max-height:400px; opacity:1; }
  .nav__links a{ padding:1rem 6%; border-bottom:1px solid rgba(27,24,21,.06); }
  .nav__links-cta{ display:block; color:var(--gold-dark); font-family:var(--font-heavy); }

  .floating-cta{ display:inline-flex; }
}
@media (max-width: 860px){
  .hero__grid{ grid-template-columns:1fr; }
  .hero__video{ max-width:240px; }
  .proyecto__grid{ grid-template-columns:1fr; }
  .proyecto__photo{ max-width:320px; margin-inline:auto; }
  .carousel__slide{ flex-basis:50%; }
  .steps{ grid-template-columns:1fr; }
  .timeline{ flex-direction:column; gap:1.6rem; }
  .timeline::before{ top:0; bottom:0; left:19px; right:auto; width:2px; height:auto; }
  .timeline__item{ padding-top:0; padding-left:3.4rem; text-align:left; }
  .timeline__dot{ top:0; left:0; transform:none; }
  .cta-hero{ grid-template-columns:1fr; text-align:center; padding:2.4rem; }
  .cta-hero__img{ transform:none; }
  .cta-hero__content p{ margin-inline:auto; }
}

@media (max-width: 560px){
  .carousel__slide{ flex-basis:100%; }
  .carousel__arrow{ width:40px; height:40px; font-size:1.1rem; }
}

/* ---------- Reveal on scroll ---------- */
.reveal{
  opacity:0;
  transform:translateY(26px);
  transition:opacity .7s ease, transform .7s ease;
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}