:root{
  --tinta:#232322;        /* carbón del logo */
  --tinta-2:#2c2c2a;
  --crema:#E8E6DD;        /* crema del logo */
  --crema-suave:#c9c6bb;
  --linea:rgba(232,230,221,.16);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--tinta);color:var(--crema);
  font-family:'Archivo',Helvetica,Arial,sans-serif;font-weight:300;
  -webkit-font-smoothing:antialiased;line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:2rem;
  padding:1.1rem clamp(1.2rem,4vw,3.5rem);
  background:linear-gradient(to bottom,rgba(35,35,34,.92),rgba(35,35,34,0));
  backdrop-filter:blur(6px);
}
.nav.solido{background:var(--tinta);border-bottom:1px solid var(--linea)}
.marca{font-weight:700;letter-spacing:.22em;font-size:.9rem}
.nav nav{display:flex;gap:2rem}
.nav nav a,.social a{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--crema-suave)}
.nav nav a:hover,.social a:hover{color:var(--crema)}
.social{display:flex;align-items:center;gap:1.1rem}
.social a{display:flex;color:var(--crema-suave);transition:color .3s ease,transform .3s ease}
.social svg{width:19px;height:19px;display:block}
.social a:hover{color:var(--crema);transform:translateY(-1px)}

/* ---------- hero ---------- */
.hero{
  position:relative;height:100svh;min-height:560px;
  background-image:url(../img/nexus/01.jpg);background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:center;text-align:center;
}
.hero-tapa{position:absolute;inset:0;background:linear-gradient(180deg,rgba(35,35,34,.72),rgba(35,35,34,.55) 45%,rgba(35,35,34,.95))}
.hero-txt{position:relative;padding:0 1.5rem}
.hero .logo{width:min(520px,80vw);margin:0 auto}
.hero .tag{margin-top:1.6rem;font-size:clamp(.6rem,1.5vw,.78rem);letter-spacing:.42em;text-transform:uppercase;color:var(--crema-suave)}
.scroll{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);font-size:1.3rem;opacity:.6;animation:flota 2.4s infinite}
@keyframes flota{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- intro ---------- */
.intro{max-width:820px;margin:clamp(4rem,10vw,8rem) auto;padding:0 1.5rem;text-align:center}
.intro p{font-size:clamp(1.05rem,2.4vw,1.5rem);font-weight:300;line-height:1.75;color:var(--crema)}

/* ---------- títulos de sección ---------- */
.titulo-sec{
  font-size:clamp(1.8rem,5vw,3rem);letter-spacing:-.01em;text-transform:uppercase;
  font-weight:600;color:var(--crema);text-align:center;
  margin-bottom:clamp(2.5rem,6vw,4.5rem);
}
.titulo-sec::after{content:"";display:block;width:38px;height:1px;background:var(--linea);margin:1.2rem auto 0}

/* ---------- departamentos ---------- */
.deptos{padding:0 clamp(1.2rem,5vw,4.5rem) clamp(3rem,8vw,6rem)}
.depto{
  display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(1.5rem,4vw,4rem);
  align-items:center;padding:clamp(2rem,5vw,4rem) 0;border-top:1px solid var(--linea);
}
.depto.alt .depto-foto{order:2}
.foto-main{
  width:100%;aspect-ratio:4/3;border:0;padding:0;cursor:pointer;
  background-size:cover;background-position:center;background-color:var(--tinta-2);
  filter:saturate(.96);transition:filter .5s ease,transform .5s ease;
}
.foto-main:hover{filter:saturate(1.05) brightness(1.04)}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:.5rem;margin-top:.5rem}
.th{
  aspect-ratio:1/1;border:0;padding:0;cursor:pointer;background-size:cover;background-position:center;
  background-color:var(--tinta-2);opacity:.78;transition:opacity .3s ease;
}
.th:hover{opacity:1}
.th.mas{
  display:flex;align-items:center;justify-content:center;color:var(--crema-suave);
  font-size:.8rem;letter-spacing:.08em;border:1px solid var(--linea);background:transparent;opacity:1;
}
.th.mas:hover{color:var(--crema);border-color:var(--crema-suave)}
.depto-info .num{font-size:.7rem;letter-spacing:.3em;color:var(--crema-suave)}
.depto-info h3{
  font-size:clamp(2.4rem,6vw,4.4rem);font-weight:600;letter-spacing:-.02em;
  line-height:1;margin:.5rem 0 .7rem;text-transform:uppercase;
}
.zona{font-size:.74rem;letter-spacing:.24em;text-transform:uppercase;color:var(--crema-suave)}
.rating{margin-left:.6rem;color:var(--crema)}
.claim{margin:1.2rem 0;font-size:1.05rem;max-width:38ch;color:var(--crema)}
.specs{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.8rem}
.specs li{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--linea);padding:.35rem .7rem;color:var(--crema-suave)}
.btn{
  display:inline-block;border:1px solid var(--crema);padding:.85rem 2rem;
  font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;
  transition:background .3s ease,color .3s ease;
}
.btn:hover{background:var(--crema);color:var(--tinta)}

/* ---------- experiencia ---------- */
.experiencia{padding:clamp(3rem,8vw,6rem) clamp(1.2rem,5vw,4.5rem);border-top:1px solid var(--linea)}
.valores{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:clamp(1.5rem,3vw,2.4rem);max-width:1400px;margin:0 auto}
.valores span{font-size:.7rem;letter-spacing:.3em;color:var(--crema-suave)}
.valores h4{margin:.6rem 0 .5rem;font-size:1.15rem;font-weight:500;letter-spacing:.02em}
.valores p{font-size:.95rem;color:var(--crema-suave)}

/* ---------- redes ---------- */
.redes{padding:clamp(4rem,9vw,7rem) 1.5rem;text-align:center;border-top:1px solid var(--linea)}
.redes h2{font-size:clamp(1.8rem,5vw,3rem);font-weight:600;text-transform:uppercase;letter-spacing:-.01em}
.redes p{color:var(--crema-suave);margin-top:.8rem;max-width:56ch;margin-inline:auto}
.redes-btns{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-top:2.2rem}
.redes-btns a{
  display:inline-flex;align-items:center;gap:.7rem;
  border:1px solid var(--linea);padding:.9rem 1.6rem;
  font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--crema-suave);
  transition:border-color .3s ease,color .3s ease;
}
.redes-btns svg{width:18px;height:18px}
.redes-btns a:hover{color:var(--crema)}
.redes-btns a:hover{border-color:var(--crema)}

footer{
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
  padding:1.6rem clamp(1.2rem,5vw,4.5rem);border-top:1px solid var(--linea);
  font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--crema-suave);
}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(20,20,19,.97);display:flex;align-items:center;justify-content:center}
.lightbox[hidden]{display:none}
.lightbox img{max-width:88vw;max-height:82vh;object-fit:contain}
.lightbox button{background:none;border:0;color:var(--crema);cursor:pointer;font-size:2rem;opacity:.7;padding:.5rem 1rem}
.lightbox button:hover{opacity:1}
.lb-cerrar{position:absolute;top:1rem;right:1.5rem;font-size:1.4rem !important}
.lb-pie{position:absolute;bottom:1.4rem;left:0;right:0;text-align:center;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--crema-suave)}

@media(max-width:860px){
  .nav nav{display:none}
  .depto{grid-template-columns:1fr}
  .depto.alt .depto-foto{order:0}
  .hero .tag{margin-top:1.1rem;letter-spacing:.26em;font-size:.56rem;white-space:nowrap}
  /* en vertical se usa una composición propia con el Obelisco entero y cielo de sobra */
  .hero{background-image:url(../img/hero-movil.jpg);background-position:center top}
  .hero-tapa{background:linear-gradient(180deg,rgba(35,35,34,.45),rgba(35,35,34,.35) 40%,rgba(35,35,34,.96))}
  .hero-txt{padding-top:34vh}
}