/* ============ TEITO · Arquitectos Asociados ============ */
:root{
  --ink:#111111;
  --paper:#ffffff;
  --stone:#f4f2ee;
  --grey:#6b6b6b;
  --font-d:'Inter Tight',Helvetica,Arial,sans-serif;
  --font-t:'Inter',Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-t);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ---------- utilidades ---------- */
.eyebrow{
  font-family:var(--font-t);font-size:.8rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--grey);margin-bottom:1.4rem;
}
.eyebrow--light{color:rgba(255,255,255,.55)}
.section-title{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(2.2rem,5vw,4rem);line-height:1.02;
}
.btn-pill{
  display:inline-block;background:var(--ink);color:#fff;
  font-family:var(--font-t);font-size:.9rem;font-weight:500;
  padding:.85em 1.6em;border-radius:100px;
  transition:transform .35s cubic-bezier(.2,.8,.2,1),background .3s;
}
.btn-pill:hover{transform:scale(1.05)}
.btn-pill--light{background:#fff;color:var(--ink);font-size:1.05rem}
.link-u{
  font-size:.95rem;font-weight:500;padding-bottom:2px;
  border-bottom:1px solid var(--ink);
  transition:opacity .3s;
}
.link-u:hover{opacity:.5}

/* ---------- preloader ---------- */
.preloader{
  position:fixed;inset:0;z-index:100;background:var(--ink);
  display:flex;align-items:center;justify-content:center;
}
.preloader__word{
  font-family:var(--font-d);font-weight:700;color:#fff;
  font-size:clamp(2.5rem,8vw,6rem);letter-spacing:-.03em;
  overflow:hidden;
}
.preloader__dot{color:#c8b89a}

/* ---------- header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.4rem 2rem;
  mix-blend-mode:normal;
}
.header__logo{
  font-family:var(--font-d);font-weight:700;font-size:1.3rem;letter-spacing:-.02em;
}
.header__logo span{color:#c8b89a}
.header__burger{
  position:absolute;left:50%;transform:translateX(-50%);
  background:none;border:0;cursor:pointer;padding:12px;
}
.header__burger span{
  display:block;width:26px;height:2px;background:var(--ink);
  margin:5px 0;transition:transform .4s cubic-bezier(.2,.8,.2,1),background .3s;
}
.menu-open .header__burger span:nth-child(1){transform:translateY(3.5px) rotate(45deg);background:#fff}
.menu-open .header__burger span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg);background:#fff}
.menu-open .header__logo{color:#fff}
.menu-open .header__cta{background:#fff;color:var(--ink)}

/* ---------- menú overlay ---------- */
.menu{
  position:fixed;inset:0;z-index:40;background:var(--ink);
  display:flex;flex-direction:column;justify-content:center;
  padding:0 8vw;
  clip-path:inset(0 0 100% 0);
  visibility:hidden;
}
.menu__link{
  display:block;font-family:var(--font-d);font-weight:700;color:#fff;
  font-size:clamp(2.4rem,7vw,5.5rem);letter-spacing:-.03em;line-height:1.15;
  width:max-content;position:relative;
  transition:opacity .3s;
}
.menu__link::before{
  content:attr(data-i);position:absolute;left:-2.2em;top:.45em;
  font-family:var(--font-t);font-weight:400;font-size:.25em;
  color:#c8b89a;letter-spacing:.1em;
}
.menu:hover .menu__link{opacity:.35}
.menu .menu__link:hover{opacity:1}
.menu__foot{
  position:absolute;bottom:2rem;left:8vw;right:8vw;
  display:flex;justify-content:space-between;
  color:rgba(255,255,255,.5);font-size:.85rem;
}

/* ---------- hero ---------- */
.hero{
  padding:6.5rem 0 5rem;text-align:center;
  overflow:hidden;
}
.hero__title{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.035em;
  font-size:clamp(2.6rem,min(7vw,10vh),5.6rem);line-height:.98;
}
.hero__line{display:block;overflow:hidden}
.hero__line span{display:block}
.hero__tag{
  margin-top:1.2rem;font-size:clamp(.95rem,1.3vw,1.1rem);color:var(--ink);
}
.hero__intro{
  max-width:520px;margin:2.6rem auto 0;font-size:1rem;line-height:1.65;color:var(--ink);
}
.hero__links{
  margin-top:1.8rem;display:flex;gap:2.5rem;justify-content:center;
}

/* ---------- carrusel curvado ---------- */
.arc{
  position:relative;margin-top:2.2rem;height:clamp(300px,44vh,520px);
  cursor:grab;user-select:none;-webkit-user-select:none;
  touch-action:pan-y;
}
.arc:active{cursor:grabbing}
.arc__track{position:absolute;inset:0}
.arc-card{
  position:absolute;top:0;left:50%;
  width:clamp(190px,min(21vw,31vh),300px);
  aspect-ratio:3/4;
  will-change:transform;
}
.arc-card img{
  width:100%;height:100%;object-fit:cover;
  pointer-events:none;
  box-shadow:0 30px 60px rgba(0,0,0,.12);
}
.arc__hint{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  pointer-events:none;z-index:5;
}
.arc__hint span{
  display:flex;align-items:center;justify-content:center;
  width:92px;height:92px;border-radius:50%;
  background:rgba(17,17,17,.85);color:#fff;
  font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;
  backdrop-filter:blur(4px);
}

/* ---------- manifiesto ---------- */
.manifiesto{
  padding:11rem 8vw;background:var(--stone);
}
.manifiesto__eyebrow{
  font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--grey);margin-bottom:2.2rem;
}
.manifiesto__text{
  font-family:var(--font-d);font-weight:600;letter-spacing:-.025em;
  font-size:clamp(1.7rem,3.6vw,3.1rem);line-height:1.25;max-width:1050px;
}
.manifiesto__text .w{opacity:.12;transition:opacity .4s}

/* ---------- proyectos ---------- */
.proyectos{padding:9rem 6vw 4rem}
.proyectos__head{margin-bottom:6rem}
.proj{
  display:grid;grid-template-columns:1fr 1fr;gap:4vw;
  align-items:end;margin-bottom:9rem;
}
.proj--r .proj__fig{order:2}
.proj--r .proj__meta{order:1;text-align:right}
.proj--r .proj__meta .proj__desc,
.proj--r .proj__meta .proj__info{margin-left:auto}
.proj__fig{
  overflow:hidden;margin:0;
}
.proj__fig img{
  width:100%;aspect-ratio:4/5;object-fit:cover;
  transform:scale(1.12);
  transition:transform 1.2s cubic-bezier(.2,.8,.2,1);
}
.proj:hover .proj__fig img{transform:scale(1.04)}
.proj__num{
  font-family:var(--font-t);font-size:.85rem;color:#c8b89a;letter-spacing:.15em;
}
.proj__name{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(1.9rem,3.6vw,3.2rem);margin:.6rem 0 .5rem;line-height:1;
}
.proj__info{
  font-size:.85rem;letter-spacing:.05em;text-transform:uppercase;color:var(--grey);
}
.proj__desc{
  margin-top:1.4rem;max-width:420px;line-height:1.65;font-size:.97rem;color:#333;
}
.proj__collab{
  margin-top:1.2rem;font-size:.78rem;letter-spacing:.08em;
  text-transform:uppercase;color:#a89467;
}
.proj__fig--plan{margin-top:2rem;max-width:420px}
.proj__fig--plan img{aspect-ratio:auto;transform:none}
.proj--r .proj__fig--plan{margin-left:auto}
.proj:hover .proj__fig--plan img{transform:none}

/* ---------- estudio ---------- */
.estudio{background:var(--ink);color:#fff;padding:10rem 8vw}
.estudio .eyebrow{color:rgba(255,255,255,.5)}
.estudio__grid{
  display:grid;grid-template-columns:1.2fr 1fr;gap:6vw;align-items:start;
}
.estudio__text{
  margin-top:2rem;line-height:1.7;color:rgba(255,255,255,.75);max-width:520px;
}
.estudio__stats{
  display:grid;grid-template-columns:1fr 1fr;gap:3.5rem 2rem;padding-top:1rem;
}
.stat__n{
  display:block;font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(2.6rem,5vw,4.2rem);line-height:1;
}
.stat__n::after{content:'+';color:#c8b89a}
.stat__l{
  display:block;margin-top:.5rem;font-size:.85rem;color:rgba(255,255,255,.55);
}

/* ---------- proceso ---------- */
.proceso{padding:10rem 8vw}
.proceso__steps{
  margin-top:5rem;display:grid;grid-template-columns:repeat(4,1fr);gap:2.5rem;
}
.paso{border-top:1px solid var(--ink);padding-top:1.4rem}
.paso__n{font-size:.85rem;color:#c8b89a;letter-spacing:.15em}
.paso h3{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.02em;
  font-size:1.5rem;margin:.8rem 0 .7rem;
}
.paso p{font-size:.92rem;line-height:1.65;color:var(--grey)}

/* ---------- contacto ---------- */
.contacto{
  background:var(--ink);color:#fff;text-align:center;
  padding:11rem 8vw 0;
}
.contacto__title{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.035em;
  font-size:clamp(3rem,9vw,7rem);line-height:1;margin-bottom:3rem;
}
.footer{
  margin-top:9rem;padding:2.2rem 0;
  border-top:1px solid rgba(255,255,255,.15);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;
  font-size:.85rem;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media(max-width:820px){
  .header{padding:1rem 1.2rem}
  .header__cta{display:none}
  .hero{padding:5.2rem 0 4rem}
  .hero__title{font-size:clamp(2.4rem,11vw,3.4rem)}
  .hero__tag{padding:0 1.4rem}
  .hero__intro{padding:0 1.6rem}
  .arc{height:60vw;margin-top:1.8rem}
  .arc-card{width:44vw}
  .arc__hint span{width:74px;height:74px;font-size:.7rem}
  .eyebrow{margin-bottom:1rem}
  .manifiesto{padding:6rem 7vw}
  .proyectos{padding:6rem 6vw 2rem}
  .proyectos__head{margin-bottom:4rem}
  .proj{grid-template-columns:1fr;gap:1.6rem;margin-bottom:5rem}
  .proj--r .proj__fig{order:0}
  .proj--r .proj__meta{order:1;text-align:left}
  .proj--r .proj__meta .proj__desc,
  .proj--r .proj__meta .proj__info{margin-left:0}
  .proj--r .proj__fig--plan{margin-left:0}
  .proj__fig--plan{max-width:100%}
  .estudio{padding:6rem 7vw}
  .estudio__grid{grid-template-columns:1fr;gap:3.5rem}
  .estudio__stats{gap:2.5rem 1.5rem}
  .proceso{padding:6rem 7vw}
  .proceso__steps{margin-top:3rem;grid-template-columns:1fr 1fr;gap:2.5rem 1.5rem}
  .contacto{padding:7rem 7vw 0}
  .footer{margin-top:6rem;flex-direction:column;align-items:center;gap:.5rem;text-align:center}
  .menu__link::before{display:none}
  .menu__foot{flex-direction:column;gap:.4rem}
}
@media(max-width:520px){
  .proceso__steps{grid-template-columns:1fr}
  .hero__links{flex-direction:column;gap:1.2rem;align-items:center}
  .arc{height:72vw}
  .arc-card{width:52vw}
}