/* ============================================================
   ECA — sistema visual: oscuro, editorial, premium.
   Carbón + lima de acento. Barlow Condensed / Barlow / Plex Mono.
   ============================================================ */
:root{
  --carbon:#0d0d0d;
  --carbon-2:#121212;
  --carbon-3:#171717;
  --linea:rgba(255,255,255,.12);
  --linea-2:rgba(255,255,255,.07);
  --lima:#a6ce39;
  --lima-d:#8db227;
  --texto:#f3f3f1;
  --mute:#9c9c98;
  --mute-2:#6f6f6c;
  --titulo:"Barlow Condensed",ui-sans-serif,system-ui,sans-serif;
  --cuerpo:"Barlow",ui-sans-serif,system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--carbon);
  color:var(--texto);
  font-family:var(--cuerpo);
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
section{scroll-margin-top:70px;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
::selection{background:var(--lima);color:#0d0d0d;}

.eca-root{min-height:100vh;}
.wrap{max-width:1280px;margin:0 auto;padding:0 32px;}
@media(max-width:640px){.wrap{padding:0 20px;}}

/* etiqueta técnica monospace ("cota") */
.kicker{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--mute);
  font-weight:400;
}
.kicker .dot{color:var(--lima);}

.h-title{
  font-family:var(--titulo);
  font-weight:500;
  letter-spacing:.04em;
  text-transform:uppercase;
  line-height:.95;
  margin:0;
}

/* ---------- Barra superior ---------- */
.topbar{
  display:flex;justify-content:space-between;align-items:center;
  gap:16px;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--mute);
  border-bottom:1px solid var(--linea-2);
  height:38px;
}
.topbar a{transition:color .3s var(--ease);}
.topbar a:hover{color:var(--lima);}
.topbar .sep{color:var(--mute-2);margin:0 4px;}
@media(max-width:860px){.topbar .hide-sm{display:none;}}

/* ---------- Header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .4s var(--ease),backdrop-filter .4s var(--ease),border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.header.solid{
  background:rgba(13,13,13,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--linea-2);
}
.header.solid .topbar{display:none;}
.navbar{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand .logo{width:34px;height:34px;border-radius:5px;}
.brand .bword{font-family:var(--titulo);font-weight:600;font-size:22px;letter-spacing:.18em;}
.brand .btag{font-family:var(--mono);font-size:9.5px;letter-spacing:.22em;color:var(--mute);text-transform:uppercase;margin-top:2px;}
@media(max-width:520px){.brand .btag{display:none;}}

.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{
  font-family:var(--titulo);font-size:16px;letter-spacing:.12em;text-transform:uppercase;
  font-weight:500;color:var(--texto);position:relative;padding:4px 0;
  transition:color .3s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--lima);
  transition:width .35s var(--ease);
}
.nav-links a:hover{color:var(--lima);}
.nav-links a:hover::after{width:100%;}

.socials{display:flex;align-items:center;gap:14px;}
.socials a{color:var(--mute);transition:color .3s var(--ease);}
.socials a:hover{color:var(--lima);}
.socials svg{width:17px;height:17px;display:block;}

.cta{
  display:inline-flex;align-items:center;gap:9px;white-space:nowrap;
  font-family:var(--titulo);font-weight:600;font-size:15px;letter-spacing:.16em;text-transform:uppercase;
  background:var(--lima);color:#0d0d0d;padding:11px 22px;border-radius:3px;border:1px solid var(--lima);
  transition:background .3s var(--ease),transform .3s var(--ease),color .3s var(--ease);
  cursor:pointer;
}
.cta:hover{background:transparent;color:var(--lima);transform:translateY(-1px);}
.cta svg{width:15px;height:15px;}

.cta-ghost{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--titulo);font-weight:500;font-size:15px;letter-spacing:.16em;text-transform:uppercase;
  background:transparent;color:var(--texto);padding:11px 22px;border-radius:3px;border:1px solid var(--linea);
  transition:border-color .3s var(--ease),color .3s var(--ease);cursor:pointer;
}
.cta-ghost:hover{border-color:var(--lima);color:var(--lima);}

.desk{display:flex;align-items:center;gap:26px;}
.burger{display:none;background:none;border:0;cursor:pointer;padding:6px;color:var(--texto);}
.burger svg{width:26px;height:26px;}
@media(max-width:980px){.nav-links,.desk .socials,.desk .cta{display:none;}.burger{display:block;}}

/* menú móvil */
.mobile{
  position:fixed;inset:0;z-index:55;background:rgba(13,13,13,.97);backdrop-filter:blur(8px);
  display:flex;flex-direction:column;justify-content:center;gap:8px;padding:40px;
  transform:translateY(-100%);transition:transform .5s var(--ease);
}
.mobile.open{transform:translateY(0);}
.mobile a{font-family:var(--titulo);font-size:34px;letter-spacing:.06em;text-transform:uppercase;font-weight:500;
  padding:10px 0;border-bottom:1px solid var(--linea-2);}
.mobile a:hover,.mobile a:active{color:var(--lima);}
.mobile .m-foot{margin-top:28px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--mute);}
.mobile .m-foot a{font-family:var(--mono);font-size:12px;border:0;padding:0;color:var(--lima);text-transform:none;letter-spacing:.05em;}

/* ---------- Hero ---------- */
.hero{position:relative;height:100vh;min-height:620px;display:flex;align-items:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.04);animation:heroZoom 16s var(--ease) forwards;}
@keyframes heroZoom{to{transform:scale(1);}}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(to bottom,rgba(13,13,13,.62) 0%,rgba(13,13,13,.30) 38%,rgba(13,13,13,.55) 78%,rgba(13,13,13,.92) 100%),
    radial-gradient(120% 80% at 50% 40%,transparent 40%,rgba(13,13,13,.45) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;text-shadow:0 2px 30px rgba(0,0,0,.45);}
.hero .kicker{margin-bottom:26px;display:inline-flex;align-items:center;gap:12px;}
.hero .kicker::before{content:"";width:34px;height:1px;background:var(--lima);display:inline-block;}
.hero-word{
  font-family:var(--titulo);font-weight:300;text-transform:uppercase;
  font-size:clamp(78px,17vw,260px);line-height:.82;letter-spacing:.02em;
  margin:0;color:#fff;
}
.hero-slogan{
  font-family:var(--cuerpo);font-weight:300;font-style:italic;
  font-size:clamp(20px,2.6vw,34px);color:#fff;margin:22px 0 0;max-width:18ch;line-height:1.2;
}
.hero-desc{font-size:16px;color:rgba(255,255,255,.82);margin:16px 0 0;max-width:42ch;letter-spacing:.02em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.scroll-ind{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--mute);
  font-family:var(--mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;
}
.scroll-ind .arrow{width:1px;height:46px;background:linear-gradient(var(--lima),transparent);position:relative;overflow:hidden;}
.scroll-ind .arrow::after{content:"";position:absolute;top:-46px;left:0;width:1px;height:46px;background:var(--lima);animation:scrollDown 2.2s var(--ease) infinite;}
@keyframes scrollDown{0%{top:-46px;}60%,100%{top:46px;}}

/* anim genéricas de entrada — solo se ocultan si JS está activo (.js),
   así el contenido nunca queda invisible si el observer falla */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease);}
.js .reveal.in{opacity:1;transform:none;}

/* ---------- Servicios ---------- */
.servicios{background:var(--carbon);padding:120px 0 110px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:64px;}
.sec-head h2{font-size:clamp(46px,6vw,86px);}
.sec-head .lead{max-width:34ch;color:var(--mute);font-size:16px;line-height:1.55;}
.serv-block{display:grid;grid-template-columns:0.42fr 1fr;gap:40px;padding:46px 0;border-top:1px solid var(--linea);}
.serv-block:last-child{border-bottom:1px solid var(--linea);}
.serv-num{display:flex;align-items:baseline;gap:18px;}
.serv-num .n{font-family:var(--mono);font-size:14px;color:var(--lima);letter-spacing:.1em;}
.serv-num h3{font-family:var(--titulo);font-weight:500;text-transform:uppercase;letter-spacing:.04em;
  font-size:clamp(26px,2.6vw,40px);line-height:1;margin:0;}
.serv-list{display:flex;flex-direction:column;}
.serv-item{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:baseline;
  padding:18px 0;border-top:1px solid var(--linea-2);transition:padding-left .35s var(--ease);}
.serv-item:first-child{border-top:0;}
.serv-item .it-t{font-family:var(--titulo);font-weight:500;text-transform:uppercase;letter-spacing:.05em;
  font-size:20px;transition:color .3s var(--ease);}
.serv-item .it-d{color:var(--mute);font-size:14.5px;line-height:1.5;max-width:46ch;margin-top:4px;}
.serv-item .it-arrow{color:var(--mute-2);opacity:0;transform:translateX(-8px);transition:all .35s var(--ease);align-self:center;}
.serv-item:hover{padding-left:14px;}
.serv-item:hover .it-t{color:var(--lima);}
.serv-item:hover .it-arrow{opacity:1;transform:none;color:var(--lima);}
.serv-item .it-arrow svg{width:18px;height:18px;display:block;}
@media(max-width:760px){.serv-block{grid-template-columns:1fr;gap:18px;padding:34px 0;}}

/* ---------- Proyectos ---------- */
.proyectos{background:var(--carbon-2);padding:120px 0 120px;}
.filtros{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 40px;}
.filtro{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  background:transparent;border:1px solid var(--linea);color:var(--mute);
  padding:9px 18px;border-radius:999px;cursor:pointer;transition:all .3s var(--ease);
}
.filtro:hover{border-color:var(--lima);color:var(--texto);}
.filtro.act{background:var(--lima);border-color:var(--lima);color:#0d0d0d;font-weight:500;}
.mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:14px;grid-auto-flow:dense;}
.tile{position:relative;overflow:hidden;cursor:pointer;background:var(--carbon-3);}
.tile.big{grid-column:span 2;grid-row:span 2;}
.tile.wide{grid-column:span 2;}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease),filter .6s var(--ease);filter:grayscale(.25) brightness(.82);}
.tile:hover img{transform:scale(1.06);filter:grayscale(0) brightness(.95);}
body.fotos-color .tile img{filter:grayscale(0) brightness(.9);}
body.fotos-color .nos-img img{filter:none;}
.tile-ov{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;
  background:linear-gradient(to top,rgba(13,13,13,.85) 0%,rgba(13,13,13,.1) 55%,transparent 100%);
  opacity:0;transform:translateY(10px);transition:opacity .45s var(--ease),transform .45s var(--ease);}
.tile:hover .tile-ov{opacity:1;transform:none;}
.tile-cat{font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--lima);margin-bottom:7px;}
.tile-t{font-family:var(--titulo);font-weight:500;text-transform:uppercase;letter-spacing:.04em;font-size:21px;line-height:1.05;color:#fff;}
@media(max-width:860px){.mosaic{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;}.tile.big{grid-row:span 2;}}
@media(max-width:520px){.mosaic{grid-template-columns:1fr;grid-auto-rows:200px;}.tile.big,.tile.wide{grid-column:span 1;grid-row:span 1;}.tile-ov{opacity:1;transform:none;}}

/* ---------- Nosotros ---------- */
.nosotros{background:var(--carbon);padding:120px 0;}
.nos-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:64px;align-items:center;}
.nos-text h2{font-size:clamp(46px,6vw,82px);margin-bottom:28px;}
.nos-text p{color:var(--mute);font-size:16.5px;line-height:1.7;margin:0 0 18px;max-width:54ch;}
.contadores{display:flex;gap:14px;margin-top:46px;flex-wrap:wrap;}
.contador{flex:1;min-width:120px;border-top:1px solid var(--lima);padding-top:16px;}
.contador .num{font-family:var(--titulo);font-weight:500;font-size:clamp(40px,5vw,62px);line-height:1;letter-spacing:.01em;}
.contador .num .u{font-size:.42em;color:var(--lima);margin-left:4px;letter-spacing:.04em;}
.contador .lab{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);margin-top:10px;}
.nos-img{position:relative;aspect-ratio:4/5;overflow:hidden;}
.nos-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(.2) brightness(.9);}
.nos-img .badge{position:absolute;left:0;bottom:0;background:var(--carbon);padding:18px 24px;
  font-family:var(--titulo);text-transform:uppercase;letter-spacing:.1em;font-size:15px;border-top:1px solid var(--lima);}
.nos-img .badge span{color:var(--lima);}
@media(max-width:860px){.nos-grid{grid-template-columns:1fr;gap:40px;}.nos-img{aspect-ratio:16/10;}}

/* ---------- Contacto ---------- */
.contacto{background:var(--carbon-2);padding:120px 0 110px;}
.con-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;}
.con-info h2{font-size:clamp(44px,5.5vw,76px);margin-bottom:30px;}
.con-row{display:flex;gap:16px;padding:20px 0;border-top:1px solid var(--linea);}
.con-row .ic{color:var(--lima);flex-shrink:0;margin-top:2px;}
.con-row .ic svg{width:20px;height:20px;}
.con-row .lab{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute);margin-bottom:5px;}
.con-row .val{font-size:16.5px;line-height:1.5;color:var(--texto);}
.con-row a.val{transition:color .3s var(--ease);}
.con-row a.val:hover{color:var(--lima);}
.mapa{margin-top:26px;border:1px solid var(--linea);height:220px;overflow:hidden;filter:grayscale(1) invert(.9) contrast(.85);}
.mapa iframe{width:100%;height:100%;border:0;}

.form{background:var(--carbon-3);border:1px solid var(--linea);padding:38px;}
.form .ft{font-family:var(--titulo);text-transform:uppercase;letter-spacing:.08em;font-size:24px;margin:0 0 6px;}
.form .fsub{color:var(--mute);font-size:14px;margin:0 0 26px;}
.field{margin-bottom:20px;}
.field label{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--mute);margin-bottom:9px;}
.field input,.field textarea{
  width:100%;background:transparent;border:0;border-bottom:1px solid var(--linea);
  color:var(--texto);font-family:var(--cuerpo);font-size:16px;padding:9px 0;font-weight:300;
  transition:border-color .3s var(--ease);
}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--lima);}
.field textarea{resize:vertical;min-height:84px;}
.form .cta{width:100%;justify-content:center;margin-top:6px;}
@media(max-width:860px){.con-grid{grid-template-columns:1fr;gap:40px;}}

/* ---------- Footer ---------- */
.footer{background:var(--carbon);border-top:1px solid var(--linea);padding:70px 0 32px;}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:50px;border-bottom:1px solid var(--linea-2);}
.foot-brand .brand{margin-bottom:18px;}
.foot-brand p{color:var(--mute);font-size:15px;line-height:1.6;max-width:34ch;font-style:italic;}
.foot-col h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute);margin:0 0 18px;}
.foot-col a,.foot-col p{display:block;color:var(--texto);font-size:15px;margin:0 0 11px;transition:color .3s var(--ease);}
.foot-col a:hover{color:var(--lima);}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:26px;flex-wrap:wrap;}
.foot-bottom .leg{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--mute-2);}
@media(max-width:760px){.foot-top{grid-template-columns:1fr;gap:34px;}}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:70;width:58px;height:58px;border-radius:50%;
  background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.4);
  transition:transform .3s var(--ease);animation:waPop .5s var(--ease) .8s both;}
.wa-float:hover{transform:scale(1.08);}
.wa-float svg{width:30px;height:30px;fill:#fff;}
@keyframes waPop{from{transform:scale(0);}to{transform:scale(1);}}

/* placeholder de subida (logo / fotos) */
.upload-note{font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--mute-2);margin-top:8px;text-transform:uppercase;}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;}
  .js .reveal{opacity:1;transform:none;}
  .hero-bg img{transform:none;}
}