/* ============================================================
   ROJO CALIZO — site.css
   Tokens en tokens.css. Fuentes en fonts.css.
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-stopped{overflow:hidden}
body{
  font-family:var(--body);background:var(--caliza);color:var(--carbon);
  font-size:var(--fs-body);line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
::selection{background:var(--rojo);color:var(--caliza)}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button{font:inherit}
.skip{position:absolute;left:-999px;top:0;background:var(--rojo);color:var(--caliza);padding:10px 16px;z-index:100}
.skip:focus{left:16px;top:16px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.eyebrow{
  font-size:var(--fs-eyebrow);letter-spacing:var(--track-eyebrow);text-transform:uppercase;
  font-weight:600;color:var(--rojo);display:flex;align-items:center;gap:14px;
}
.eyebrow::before{content:'';width:34px;height:3px;background:var(--rojo);flex:none}

/* motivo estratos */
.trio{display:flex;flex-direction:column;gap:var(--estrato-gap)}
.trio i{display:block;height:var(--estrato-h);background:var(--rojo);transform-origin:left center}
.trio i:nth-child(1){width:var(--estrato-1)}
.trio i:nth-child(2){width:var(--estrato-2)}
.trio i:nth-child(3){width:var(--estrato-3)}
.trio.carbon i{background:var(--carbon)}
.trio.claro i{background:var(--caliza)}

/* reveal (solo con JS) */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity var(--dur-reveal) ease,transform var(--dur-reveal) ease}
.js .reveal.in{opacity:1;transform:none}

.btn{
  display:inline-block;background:var(--rojo);color:var(--caliza);text-decoration:none;
  font-size:var(--fs-ui);letter-spacing:var(--track-ui);text-transform:uppercase;font-weight:600;
  padding:13px 28px;transition:background var(--dur-hover) ease;border:none;cursor:pointer;font-family:var(--body);
  min-height:44px;
}
.btn:hover{background:var(--rojo-osc)}
.btn:disabled{opacity:.6;cursor:default}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--rojo);outline-offset:3px}

/* ---------- nav ---------- */
nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--gutter);transition:background .4s ease,box-shadow .4s ease;
}
nav.solid{background:rgba(240,233,221,.93);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 1px 0 rgba(35,32,25,.1)}
nav.sobre-oscuro:not(.solid){color:var(--caliza)}
nav.sobre-oscuro:not(.solid) .logo{color:var(--caliza)}
.logo{
  font-family:var(--display);font-size:20px;letter-spacing:.03em;text-transform:uppercase;
  text-decoration:none;color:var(--carbon);line-height:1;position:relative;z-index:61;
}
.logo b{color:var(--rojo);font-weight:400}
.nav-links{display:flex;gap:36px;align-items:center}
.nav-links a{
  text-decoration:none;font-size:var(--fs-ui);letter-spacing:var(--track-ui);
  text-transform:uppercase;font-weight:500;position:relative;padding-bottom:3px;
}
.nav-links a:not(.btn)::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--rojo);transition:width .3s ease}
.nav-links a:not(.btn):hover::after,.nav-links a:not(.btn):focus-visible::after{width:100%}
.burger{display:none;position:relative;z-index:61;width:44px;height:44px;background:none;border:0;cursor:pointer;margin-right:-10px}
.burger i{position:absolute;left:10px;right:10px;height:2px;background:currentColor;transition:transform .35s var(--ease-out),top .35s var(--ease-out)}
.burger i:nth-child(1){top:17px}
.burger i:nth-child(2){top:25px}
.menu-abierto .burger i{background:var(--caliza)}
.menu-abierto .burger i:nth-child(1){top:21px;transform:rotate(45deg)}
.menu-abierto .burger i:nth-child(2){top:21px;transform:rotate(-45deg)}
.menu-abierto .logo{color:var(--caliza)}
@media(max-width:1023px){
  .nav-links{display:none}
  .burger{display:block}
}
.menu{
  position:fixed;inset:0;z-index:60;background:var(--carbon);color:var(--caliza);
  display:flex;align-items:center;padding:0 var(--gutter);
  opacity:0;visibility:hidden;transition:opacity .45s var(--ease-out),visibility 0s .45s;
}
.menu-abierto .menu{opacity:1;visibility:visible;transition:opacity .45s var(--ease-out)}
.menu-inner{display:flex;flex-direction:column;gap:6px;width:100%}
.menu-inner>a{
  font-family:var(--display);font-size:clamp(44px,12vw,72px);text-transform:uppercase;line-height:1;
  text-decoration:none;letter-spacing:.01em;
  opacity:0;transform:translateY(24px);transition:opacity .5s var(--ease-out),transform .5s var(--ease-out);
}
.menu-abierto .menu-inner>a{opacity:1;transform:none}
.menu-inner>a:nth-child(1){transition-delay:.06s}.menu-inner>a:nth-child(2){transition-delay:.12s}
.menu-inner>a:nth-child(3){transition-delay:.18s}.menu-inner>a:nth-child(4){transition-delay:.24s}.menu-inner>a:nth-child(5){transition-delay:.30s}
.menu-inner>a:hover{color:var(--rojo)}
.menu-foot{margin-top:40px;display:flex;align-items:center;gap:24px}
.menu-tel{font-size:var(--fs-ui);letter-spacing:var(--track-ui);text-decoration:none;color:var(--gris-2)}

/* ---------- hero ---------- */
.hero{
  min-height:100svh;position:relative;display:flex;align-items:flex-end;
  padding:0 0 9vh;overflow:hidden;background:var(--caliza);
}
.strata{position:absolute;inset:0;z-index:0}
.stratum{position:absolute;left:0;right:0;will-change:transform}
.s1{top:0;height:36%;background:var(--caliza)}
.s2{top:36%;height:20%;background:var(--caliza-2)}
.s3{top:56%;height:27%;background:var(--caliza-3)}
.s4{top:83%;height:17%;background:var(--caliza-2)}
.hero-media{position:absolute;inset:0;z-index:1;opacity:0;pointer-events:none}
.hero-media picture,.hero-media img{width:100%;height:100%}
.hero-media img{object-fit:cover;object-position:center 55%;will-change:transform}
.hero-content{position:relative;z-index:2;width:100%;transform-origin:left bottom}
.hero-eyebrow{margin-bottom:34px}
h1{
  font-family:var(--display);font-weight:400;
  font-size:var(--fs-h1);
  line-height:.95;letter-spacing:.01em;text-transform:uppercase;
  transform-origin:left bottom;
}
h1 .linea{display:block;overflow:hidden;padding-bottom:.04em;margin-bottom:-.04em}
h1 .linea span{display:inline-block;transform:translateY(110%);animation:subir var(--dur-h1) var(--ease-out) forwards}
h1 .linea:nth-child(2) span{animation-delay:.12s;color:var(--rojo)}
@keyframes subir{to{transform:none}}
.hero-trio{margin-top:30px}
.hero-sub{
  margin-top:34px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.hero-sub p{max-width:460px;font-size:var(--fs-lead);color:var(--carbon);font-weight:300}
.hero-sub p strong{font-weight:600}
.scroll-hint{
  position:absolute;right:var(--gutter);bottom:9vh;z-index:2;font-size:var(--fs-eyebrow);letter-spacing:var(--track-eyebrow);
  text-transform:uppercase;color:var(--piedra-txt);writing-mode:vertical-rl;
}
@media(max-width:820px){.scroll-hint{display:none}.hero{padding-bottom:12vh}.hero-eyebrow{margin-bottom:24px}}

/* ---------- manifiesto ---------- */
.manifiesto{background:var(--carbon);color:var(--caliza);padding:110px 0;min-height:100svh;display:flex;align-items:center}
.manifiesto .wrap{display:grid;grid-template-columns:1fr 2fr;gap:60px;align-items:start;width:100%}
.statement{
  font-family:var(--body);font-weight:300;font-size:var(--fs-manifiesto);line-height:1.4;
}
.statement em{font-style:normal;color:var(--salmon);font-weight:500}
.statement .w{display:inline-block;white-space:pre}
.js.motion .statement .w{opacity:.18}
.manifiesto .eyebrow{color:var(--salmon)}
.manifiesto .eyebrow::before{background:var(--salmon)}
@media(max-width:820px){.manifiesto .wrap{grid-template-columns:1fr;gap:30px}}

/* ---------- proyectos (stack sticky) ---------- */
.proyectos{padding:var(--sec) 0 40px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:64px}
.sec-head h2{font-family:var(--display);font-weight:400;font-size:var(--fs-h2);text-transform:uppercase;letter-spacing:.01em;line-height:1;margin-top:18px}
.sec-head .num{font-family:var(--body);font-weight:500;font-size:var(--fs-ui);letter-spacing:var(--track-meta);color:var(--piedra-txt)}
.stack{display:block}
.proy{position:sticky;top:11vh;margin:0 auto 14vh;will-change:transform;transform-origin:center top}
.proy:last-child{margin-bottom:6vh}
.proy .foto{display:block;aspect-ratio:16/9;position:relative;overflow:hidden;background:var(--caliza-3);text-decoration:none}
.proy .foto picture,.proy .foto img{position:absolute;inset:0;width:100%;height:100%}
.proy .foto img{object-fit:cover;transition:transform .8s var(--ease-out)}
.proy .foto .ph{
  position:absolute;inset:0;display:flex;flex-direction:column;gap:22px;align-items:center;justify-content:center;
  font-size:var(--fs-eyebrow);letter-spacing:.2em;text-transform:uppercase;color:var(--tinta-2);
  text-align:center;padding:20px;background:var(--caliza-2);transition:transform .8s var(--ease-out);
}
.proy .foto .ph .trio{align-items:center}
.proy .foto .velo{position:absolute;inset:0;background:var(--carbon);opacity:0;pointer-events:none;z-index:1}
.proy:hover .foto img,.proy:hover .foto .ph{transform:scale(1.045)}
.proy .foto::after{
  content:'';position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--rojo);
  transition:width .5s ease;z-index:2;
}
.proy:hover .foto::after{width:100%}
.proy figcaption{display:flex;justify-content:space-between;align-items:baseline;margin-top:16px;gap:16px;background:var(--caliza);padding-bottom:6px}
.proy h3{font-family:var(--display);font-weight:400;font-size:var(--fs-card);letter-spacing:.03em;text-transform:uppercase}
.proy .meta{font-size:var(--fs-meta);letter-spacing:var(--track-meta);text-transform:uppercase;color:var(--piedra-txt);white-space:nowrap}
@media(max-width:820px){
  .proy{top:9vh;margin-bottom:12vh}
  .proy .foto{aspect-ratio:4/3}
  .proy figcaption{flex-direction:column;gap:4px}
  .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:44px}
}

/* ---------- servicios ---------- */
.servicios{padding:var(--sec) 0;position:relative;background:var(--caliza)}
.serv-bg{position:absolute;inset:0;background:var(--caliza-2);z-index:0}
.servicios .wrap{position:relative;z-index:1}
.grid-serv{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.grid-serv::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--linea);transform-origin:left;transform:scaleX(var(--ln-top,1))}
.serv{padding:48px 34px 56px;position:relative;transition:background .35s ease}
.serv .ln-r{position:absolute;top:0;bottom:0;right:0;width:1px;background:var(--linea);transform-origin:top;transform:scaleY(var(--ln,1))}
.serv .ln-b{position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--linea);transform-origin:left;transform:scaleX(var(--ln,1))}
.serv:last-child .ln-r{display:none}
.serv:hover{background:var(--caliza)}
.serv::before{content:'';position:absolute;top:-1px;left:0;height:3px;width:0;background:var(--rojo);transition:width .45s ease;z-index:2}
.serv:hover::before{width:100%}
.serv h3{font-family:var(--display);font-weight:400;font-size:var(--fs-h3);text-transform:uppercase;letter-spacing:.02em;margin-bottom:18px}
.serv p{font-size:var(--fs-small);font-weight:300;color:var(--tinta-2);margin-bottom:22px}
.serv ul{list-style:none}
.serv li{font-size:var(--fs-ui);letter-spacing:.06em;padding:9px 0;border-top:1px dashed rgba(35,32,25,.2)}
@media(max-width:820px){
  .grid-serv{grid-template-columns:1fr}
  .serv{padding:36px 0 44px}
  .serv .ln-r{display:none}
}

/* ---------- proceso (pinned horizontal) ---------- */
.proceso{padding:var(--sec) 0 0}
.proceso .sec-head{margin-bottom:0}
.proceso-pin{position:relative;height:100svh;overflow:hidden;border-top:1px solid var(--linea)}
.progreso{position:absolute;top:0;left:0;right:0;height:3px;z-index:3}
.progreso i{display:block;height:100%;background:var(--rojo);transform-origin:left;transform:scaleX(0)}
.track{display:flex;height:100%;will-change:transform}
.paso{
  flex:0 0 100vw;height:100%;position:relative;display:flex;align-items:center;
  padding:0 var(--gutter);border-right:1px solid var(--linea);
}
.paso .n{
  position:absolute;right:var(--gutter);bottom:-.08em;font-family:var(--display);
  font-size:clamp(180px,30vw,420px);line-height:1;color:var(--rojo);opacity:.12;pointer-events:none;user-select:none;
}
.paso-txt{max-width:560px;position:relative;z-index:1}
.paso-num{display:block;font-size:var(--fs-eyebrow);letter-spacing:var(--track-eyebrow);text-transform:uppercase;font-weight:600;color:var(--rojo);margin-bottom:22px}
.paso h3{font-family:var(--display);font-weight:400;font-size:clamp(34px,4.5vw,64px);text-transform:uppercase;letter-spacing:.02em;line-height:1;margin-bottom:22px}
.paso p{font-size:var(--fs-lead);font-weight:300;color:var(--tinta-2);max-width:520px}
.no-motion .proceso-pin{height:auto;overflow:visible}
.no-motion .track{flex-direction:column}
.no-motion .paso{flex:none;height:auto;padding:56px var(--gutter);border-right:0;border-bottom:1px solid var(--linea)}
.no-motion .paso .n{font-size:120px;bottom:0}
.no-motion .progreso{display:none}
@media(max-width:820px){
  .paso .n{font-size:clamp(160px,50vw,260px);right:4vw}
  .paso h3{font-size:clamp(34px,9vw,52px)}
  .paso p{font-size:var(--fs-body)}
}

/* ---------- nosotros ---------- */
.nosotros{padding:var(--sec) 0;background:var(--carbon);color:var(--caliza);position:relative;overflow:hidden}
.nosotros-bg{position:absolute;inset:-12% 0;z-index:0;opacity:.18;pointer-events:none;will-change:transform}
.nosotros-bg picture,.nosotros-bg img{width:100%;height:100%}
.nosotros-bg img{object-fit:cover;object-position:center}
.no-motion .nosotros-bg{inset:0}
.nosotros .wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;position:relative;z-index:1}
.nosotros .eyebrow{color:var(--salmon)}
.nosotros .eyebrow::before{background:var(--salmon)}
.nosotros h2{font-family:var(--display);font-weight:400;font-size:var(--fs-h2-despacho);line-height:1.05;text-transform:uppercase;letter-spacing:.01em;margin:22px 0 26px}
.nosotros p{font-weight:300;color:var(--crema-2);max-width:520px}
.datos{display:flex;flex-direction:column;justify-content:center}
.dato{padding:26px 0;border-top:1px solid var(--linea-clara)}
.dato:last-child{border-bottom:1px solid var(--linea-clara)}
.dato .k{font-family:var(--display);font-size:26px;text-transform:uppercase;letter-spacing:.02em}
.dato .k .ch{display:inline-block;white-space:pre}
.dato .v{font-size:var(--fs-meta);letter-spacing:.2em;text-transform:uppercase;color:var(--gris-2);margin-top:4px}
@media(max-width:820px){.nosotros .wrap{grid-template-columns:1fr;gap:40px}}

/* ---------- contacto ---------- */
.contacto{padding:var(--sec) 0 100px}
.contacto .wrap{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.contacto h2{font-family:var(--display);font-weight:400;font-size:var(--fs-h2-contacto);text-transform:uppercase;line-height:.98;margin-top:20px}
.contacto-trio{margin-top:26px}
.contacto .cta-line{margin-top:26px;font-weight:300;max-width:400px;color:var(--tinta-2)}
.directo{margin-top:26px;font-size:var(--fs-ui);letter-spacing:var(--track-ui);text-transform:uppercase;font-weight:500;line-height:2}
.directo a{text-decoration:none}
.directo a:hover{color:var(--rojo)}
.campo{margin-bottom:26px}
.campo label{display:block;font-size:var(--fs-eyebrow);letter-spacing:.24em;text-transform:uppercase;color:var(--piedra-txt);margin-bottom:8px;font-weight:600}
.campo input,.campo textarea{
  width:100%;background:transparent;border:none;border-bottom:1px solid rgba(35,32,25,.3);border-radius:0;
  padding:10px 0;font-family:var(--body);font-size:var(--fs-body);color:var(--carbon);outline:none;
  transition:border-color .3s ease;resize:vertical;min-height:44px;
}
.campo input:focus,.campo textarea:focus{border-color:var(--rojo)}
.campo input::placeholder,.campo textarea::placeholder{color:var(--piedra-txt);opacity:.9}
.campo.err input,.campo.err textarea{border-color:var(--rojo)}
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.form-msg{margin-top:18px;font-size:var(--fs-small);font-weight:500;color:var(--rojo);min-height:1.5em}
.form-msg a{color:inherit}
@media(max-width:820px){.contacto .wrap{grid-template-columns:1fr;gap:40px}}

/* ---------- footer ---------- */
footer{background:var(--carbon);color:var(--gris-2);padding:70px 0 40px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:30px;font-size:var(--fs-meta);letter-spacing:.1em}
footer a{text-decoration:none}
footer a:hover{color:var(--caliza)}
.lockup{font-family:var(--display);text-transform:uppercase;line-height:.9;display:inline-flex;flex-direction:column;align-items:center;text-decoration:none}
.lockup .r{font-size:46px;color:var(--caliza);letter-spacing:.06em}
.lockup .c{font-size:31px;color:var(--rojo);letter-spacing:.015em}
.lockup .trio{margin-top:10px;align-items:center}
.lockup .trio i{background:var(--caliza)}
.lockup .trio i:nth-child(1){width:70px}
.lockup .trio i:nth-child(2){width:50px}
.lockup .trio i:nth-child(3){width:30px}
footer .cols{text-align:right;line-height:2}
@media(max-width:820px){footer .wrap{flex-direction:column;align-items:flex-start}footer .cols{text-align:left}}

/* ---------- WhatsApp flotante ---------- */
.wa{
  position:fixed;right:24px;bottom:24px;z-index:40;width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
  background:var(--carbon);color:var(--caliza);text-decoration:none;
  box-shadow:0 6px 18px rgba(35,32,25,.25);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .4s var(--ease-out),transform .4s var(--ease-out),background .3s ease;
}
.wa.on{opacity:1;transform:none;pointer-events:auto}
.wa:hover{background:var(--rojo)}
.no-js .wa,.no-motion .wa{opacity:1;transform:none;pointer-events:auto}
@media(max-width:820px){.wa{right:16px;bottom:16px}}

/* ---------- reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  html:not(.force-motion){scroll-behavior:auto}
  html:not(.force-motion) *,html:not(.force-motion) *::before,html:not(.force-motion) *::after{animation:none!important;transition:none!important}
  html:not(.force-motion) .reveal{opacity:1;transform:none}
  html:not(.force-motion) h1 .linea span{transform:none}
  html:not(.force-motion) .hero-media{display:none}
  html:not(.force-motion) .statement .w{opacity:1!important}
}
.no-motion .js .reveal,.no-motion .reveal{opacity:1;transform:none}
.no-motion .hero-media{display:none}