/* AEC SHIFT — Rediseño propuesto */
:root{
  --naranja:#E59430;
  --gris-claro:#B1B1B1;
  --gris:#706F6F;
  --gris-oscuro:#3C3C3B;
  --negro:#000;
  --blanco:#fff;
  --fondo-suave:#F6F5F3;
  --fondo-oscuro:#2C2B2A;
  --linea:rgba(60,60,59,.14);
  --fuente:"Agenda Light","Avenir Next","Avenir","Segoe UI","Helvetica Neue",Arial,sans-serif;
  --ancho:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fuente);font-weight:300;color:var(--gris);background:var(--blanco);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.contenedor{width:100%;max-width:var(--ancho);margin:0 auto;padding:0 24px}

/* Títulos */
h1,h2{font-weight:400;text-transform:uppercase;letter-spacing:.14em;color:var(--gris-oscuro)}
h3{font-weight:400;color:var(--gris-oscuro);font-size:1rem;line-height:1.4;letter-spacing:.02em}
h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.15}
h2{font-size:clamp(1.4rem,3vw,2rem);line-height:1.25}

.etiqueta{display:none}
.bajada{max-width:680px;font-size:1.08rem}
.regla{width:56px;height:2px;background:var(--naranja);margin:22px 0 28px}

/* Cabecera */
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--linea)}
.barra{display:flex;align-items:center;justify-content:space-between;height:92px}
.marca img{height:74px;width:auto}
nav ul{display:flex;gap:28px;list-style:none;align-items:center}
nav a{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gris-oscuro);padding:6px 0;border-bottom:1px solid transparent;transition:.2s}
nav a:hover{color:var(--naranja);border-color:var(--naranja)}
nav a.btn-nav{border:1px solid var(--naranja);color:var(--naranja);padding:8px 16px}
nav a.btn-nav:hover{background:var(--naranja);color:#fff}
nav a.btn-nav-cta{background:var(--naranja);color:#fff!important;border-color:var(--naranja);font-weight:600}
nav a.btn-nav-cta:hover{background:#cf8428;border-color:#cf8428}
.tiene-sub{position:relative}
.tiene-sub>.sub-menu{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--linea);border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.1);padding:10px 0;min-width:240px;z-index:30;list-style:none;flex-direction:column;align-items:stretch;gap:0}
.tiene-sub:hover>.sub-menu{display:flex}
.sub-menu li{padding:0;text-align:left;width:100%}
.sub-menu a{display:flex;align-items:center;gap:8px;padding:10px 16px!important;font-size:.72rem!important;letter-spacing:.12em;border-bottom:none!important;white-space:nowrap;text-align:left;justify-content:flex-start}
.sub-menu a:hover{background:var(--fondo-suave);color:var(--naranja)}
.flecha{font-size:.6em;vertical-align:middle;margin-left:2px}

.menu-btn{display:none;background:none;border:0;cursor:pointer;width:40px;height:40px}
.menu-btn span{display:block;height:2px;background:var(--gris-oscuro);margin:7px 8px;transition:.2s}

.lider-iso{margin-top:48px;border-left:3px solid var(--naranja);background:var(--fondo-suave);padding:28px 32px;border-radius:0 6px 6px 0}
.lider-iso-contenido{font-size:.95rem;line-height:1.7;color:var(--gris)}
.lider-iso strong{color:var(--gris-oscuro);font-weight:600}

/* Sub-navegación */
.sub-nav{background:var(--gris-oscuro);border-top:1px solid rgba(255,255,255,.08)}
.sub-nav .contenedor{display:flex;align-items:center;justify-content:flex-start;height:36px;gap:6px}
.sub-nav a{font-size:.65rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.6);transition:color .2s,border-color .2s}
.sub-nav a:hover{color:#fff}
.btn-subnav{border:1px solid var(--naranja);border-radius:4px;padding:4px 14px!important;font-size:.6rem!important;letter-spacing:.12em;color:var(--naranja)!important;background:rgba(229,148,48,.12)}
.btn-subnav:hover{border-color:var(--naranja)!important;background:var(--naranja);color:#fff!important}
.btn-subnav-pronto{border-color:var(--gris-claro)!important;color:var(--gris-claro)!important;background:transparent;cursor:default}
.btn-subnav-pronto:hover{border-color:var(--gris-claro)!important;background:transparent;color:var(--gris-claro)!important}
.btn-subnav-pronto em,.menu-pronto em{font-style:normal;font-size:.55rem;background:var(--gris-claro);color:#fff;border-radius:3px;padding:1px 6px;margin-left:5px;vertical-align:middle;letter-spacing:.06em}
.menu-pronto{display:flex;align-items:center;gap:8px;padding:6px 16px;color:var(--gris-claro);font-size:.78rem;cursor:default}
.menu-pronto img{opacity:.4}
.subnav-titulo{color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-right:10px}
.subnav-sep{width:1px;height:16px;background:rgba(255,255,255,.2);margin:0 8px 0 auto}
.btn-subnav-link{font-size:.68rem!important;letter-spacing:.16em;text-transform:uppercase;color:#fff!important;padding:5px 18px;border:1px solid rgba(229,148,48,.5);border-radius:4px;background:rgba(229,148,48,.12);transition:color .2s,background .2s,border-color .2s}
.btn-subnav-link:hover{background:var(--naranja);color:#fff!important;border-color:var(--naranja)}


.hero{position:relative;overflow:hidden;padding:120px 0 110px;background:#fff}
.hero .contenedor{position:relative;z-index:3}
.hero p.bajada{margin:26px 0 38px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.88) 32%,rgba(246,245,243,.6) 65%,rgba(246,245,243,.3) 100%)}
.hero h1,.hero .bajada{color:var(--gris-oscuro)}

/* Botones */
.botones{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-block;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;padding:15px 30px;border:1px solid var(--naranja);transition:.2s;cursor:pointer;font-family:inherit;font-weight:400}
.btn-solido{background:var(--naranja);color:#fff}
.btn-solido:hover{background:var(--gris-oscuro);border-color:var(--gris-oscuro)}
.btn-lineal{color:var(--naranja);background:transparent;border-color:var(--naranja)}
.btn-lineal:hover{background:var(--naranja);color:#fff}
.btn-cta-grande{background:var(--naranja);color:#fff;font-size:.85rem;padding:18px 36px;font-weight:600;border-color:var(--naranja);box-shadow:0 4px 20px rgba(229,148,48,.35)}
.btn-cta-grande:hover{background:#cf8428;border-color:#cf8428;box-shadow:0 6px 28px rgba(229,148,48,.5);transform:translateY(-1px)}

/* Secciones */
section{padding:96px 0}
.suave{background:var(--fondo-suave)}
.encabezado{margin-bottom:56px}


#areas{background:var(--fondo-suave)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tarjeta .mas{display:inline-block;margin-top:18px;font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;color:var(--naranja);border-bottom:1px solid var(--naranja);padding-bottom:3px}


.tarjeta{background:#fff;border:1px solid var(--linea);padding:32px 28px;border-top:2px solid var(--naranja);transition:background .25s}
.tarjeta:hover{background:rgba(229,148,48,.04)}
.tarjeta h3{margin-bottom:14px;font-size:1.05rem;font-weight:600;color:var(--gris-oscuro)}
.tarjeta ul{list-style:none;font-size:.96rem}
.tarjeta li{padding:5px 0 5px 18px;position:relative}
.tarjeta li::before{content:"";position:absolute;left:0;top:17px;width:8px;height:1px;background:var(--naranja)}


#iso{background:var(--fondo-oscuro);padding:96px 0}
#iso .encabezado h2{color:var(--fondo-suave)}
#iso .encabezado .bajada{color:rgba(255,255,255,.6)}
#iso .tarjeta{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.1);border-top-color:var(--naranja)}
#iso .tarjeta h3{color:var(--fondo-suave)}
#iso .tarjeta ul{color:rgba(255,255,255,.55)}
#iso .tarjeta li::before{background:var(--naranja)}
#iso .tarjeta:hover{background:rgba(255,255,255,.1)}
#iso .lider-iso{background:rgba(255,255,255,.06);border-left-color:var(--naranja)}
#iso .lider-iso-contenido{color:rgba(255,255,255,.6)}
#iso .lider-iso strong{color:var(--fondo-suave)}
#iso .btn-lineal{color:var(--naranja);border-color:var(--naranja)}
#iso .btn-lineal:hover{background:var(--naranja);color:#fff}

.iso-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* Licenciamiento */
.licencias{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.licencia{border:1px solid var(--linea);padding:36px 32px;background:#fff;display:flex;flex-direction:column;border-top:2px solid var(--naranja);transition:background .25s}
.licencia:hover{background:var(--fondo-suave)}
.licencia .estado{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--naranja);margin-bottom:18px;display:block}
.licencia.pronto{border-style:dashed;border-top-style:dashed;justify-content:center;text-align:center;color:var(--gris-claro)}
.licencia.pronto h3{color:var(--gris)}
.licencia .btn{margin-top:auto;align-self:flex-start}
.licencia p{margin:14px 0 26px}

/* Proyectos */
.proy-cats{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:8px}
.proy-cat-titulo{font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--naranja);border-bottom:2px solid var(--naranja);padding-bottom:10px;margin-bottom:24px}
.proy-item{border-left:2px solid var(--linea);padding:14px 0 14px 20px;margin-bottom:6px;transition:border-color .2s}
.proy-item:hover{border-left-color:var(--naranja)}
.proy-item h4{font-size:.86rem;margin:0 0 4px;color:var(--gris-oscuro);font-weight:600;letter-spacing:.04em}
.proy-item .proy-meta{font-size:.75rem;color:var(--gris);letter-spacing:.06em}
.proy-item .proy-meta em{font-style:normal;color:var(--naranja)}
.bandera{display:inline-block;font-size:.6rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:var(--naranja);color:#fff;padding:2px 5px;border-radius:2px;vertical-align:middle;margin-right:4px;line-height:1.2}
.proy-nota{text-align:center;margin-top:32px;font-size:.82rem;color:var(--gris)}
.proy-nota a{color:var(--naranja);border-bottom:1px solid var(--naranja);padding-bottom:2px}
@media(max-width:700px){.proy-cats{grid-template-columns:1fr;gap:32px}}

/* Alianzas */
.aliados{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.aliado{border:1px solid var(--linea);padding:30px 26px;background:#fff;display:flex;flex-direction:column;border-top:2px solid var(--naranja);transition:.25s}
a.aliado:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(60,60,59,.1)}
.logo-aliado{height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.logo-aliado img{max-height:100px;max-width:80%;width:auto;object-fit:contain}
.logo-aliado span{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gris-claro)}
.logo-aliado img+span{display:none}
.aliado h3{font-size:.86rem;margin-bottom:8px}
.aliado p{font-size:.92rem;line-height:1.6}
.aliado .visita{margin-top:auto;padding-top:16px;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--naranja)}
.aliado.invitacion{background:var(--fondo-suave);border-style:dashed;border-top-style:dashed;justify-content:center;align-items:flex-start}
.aliado.invitacion .btn{margin-top:18px}
@media (max-width:1000px){.aliados{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.aliados{grid-template-columns:1fr}}


.nosotros-sec{position:relative;overflow:hidden;background:var(--fondo-oscuro)}
.nosotros-sec .contenedor{position:relative;z-index:2}
.nosotros-bg{position:absolute;inset:0;z-index:0;opacity:.35}
.nosotros-bg img{width:100%;height:100%;object-fit:cover;filter:invert(1)}
.credenciales{position:relative;z-index:2}
.cred{background:rgba(44,43,42,.85);border:1px solid rgba(255,255,255,.1);padding:28px 24px;border-radius:6px;transition:border-color .3s}
.nosotros{display:grid;grid-template-columns:1.3fr 1fr;gap:64px;align-items:center}
.nosotros p{color:rgba(255,255,255,.6)}
.nosotros p+p{margin-top:16px}
.nosotros h2{color:var(--fondo-suave)}
.cifra{border-left:2px solid var(--naranja);padding:8px 0 8px 32px}
.cifra strong{display:block;font-size:4.4rem;font-weight:300;color:var(--fondo-suave);line-height:1;letter-spacing:.02em}
.cifra span{display:block;margin-top:10px;text-transform:uppercase;letter-spacing:.2em;font-size:.8rem;color:rgba(255,255,255,.5)}
.cifras-int{display:flex;flex-direction:column;gap:36px}
.credenciales{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-top:48px;padding-bottom:16px}
.cred{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);padding:28px 24px;border-radius:6px;transition:border-color .3s}
.cred:hover{border-color:var(--naranja)}
.cred-icono{font-size:1.6rem;margin-bottom:14px}
.cred h3{font-size:.88rem;font-weight:600;color:var(--fondo-suave);margin-bottom:10px;line-height:1.4}
.cred p{font-size:.82rem;color:rgba(255,255,255,.55);line-height:1.55;margin:0}

/* Iconos menú */
.icono-menu{width:18px;height:18px;min-width:18px;min-height:18px;border-radius:3px;flex-shrink:0;object-fit:contain}

/* Fondo icono tarjetas software */
.licencia-validador,.licencia-traza,.licencia-aecrebar,.licencia-nexo{position:relative;overflow:hidden}
.licencia-validador::before,.licencia-traza::before,.licencia-aecrebar::before,.licencia-nexo::before{content:"";position:absolute;right:-20px;bottom:-20px;width:180px;height:180px;background-size:contain;background-repeat:no-repeat;background-position:center;opacity:.08;pointer-events:none;z-index:0}
.licencia-validador::before{background-image:url(../img/validador-icon.png)}
.licencia-traza::before{background-image:url(../img/traza-icon-square.png);background-color:#fff;border-radius:8px;opacity:.10}
.licencia-aecrebar::before{background-image:url(../img/aecrebar-icon.png)}
.licencia-nexo::before{background-image:url(../img/nexo-logo.jpg);opacity:.06}
.licencia-validador>*,.licencia-traza>*,.licencia-aecrebar>*,.licencia-nexo>*{position:relative;z-index:1}


/* Contacto */
.contacto{display:grid;grid-template-columns:1fr 1.2fr;gap:64px}
.datos p{margin-bottom:10px}
.datos a{color:var(--naranja)}
.datos a:hover{text-decoration:underline}
form{display:grid;gap:18px}
label{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gris-oscuro);display:block;margin-bottom:6px}
input,textarea{width:100%;font:inherit;font-weight:300;color:var(--gris-oscuro);padding:13px 14px;border:1px solid var(--gris-claro);background:#fff;border-radius:0;outline:none;transition:.2s}
input:focus,textarea:focus{border-color:var(--naranja)}
textarea{min-height:140px;resize:vertical}
.aviso{font-size:.9rem;min-height:1.4em}
.oculto{position:absolute;left:-9999px}


footer{background:var(--gris-oscuro);color:#c9c9c8;padding:56px 0 34px;font-size:.92rem}
footer nav{position:static;display:block;background:transparent;border:0;box-shadow:none}
footer nav ul{flex-direction:column;align-items:flex-start;gap:8px;padding:0}
footer nav a{color:#c9c9c8;font-size:.74rem;letter-spacing:.1em;padding:2px 0;border:0}
footer nav a:hover{color:var(--naranja);border-color:transparent}
.pie{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-start}
.pie svg{height:52px;width:auto}
.pie ul{list-style:none}
.pie a:hover{color:var(--naranja)}
.copy{margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:.8rem;color:#9a9a99}


.rev{opacity:1;transform:none;transition:none}
.rev.ok{opacity:1;transform:none}

/* Servicios (kept for BIM section) */
.servicios{display:grid;gap:0}
.servicio{display:grid;grid-template-columns:72px 1fr 1.25fr;gap:32px;padding:44px 0;border-top:1px solid var(--linea)}
.servicio:last-child{border-bottom:1px solid var(--linea)}
.servicio .n{font-size:.85rem;letter-spacing:.18em;color:var(--naranja);padding-top:4px}
.servicio ul{list-style:none}
.servicio li{padding:7px 0 7px 22px;position:relative;border-bottom:1px dashed var(--linea)}
.servicio li:last-child{border-bottom:0}
.servicio li::before{content:"";position:absolute;left:0;top:19px;width:10px;height:1px;background:var(--naranja)}
.servicio .objetivo{margin-top:8px;font-size:.98rem}
.servicio .sub{margin-top:14px}
.servicio .sub b{font-weight:400;color:var(--gris-oscuro);letter-spacing:.12em;text-transform:uppercase;font-size:.72rem}



/* Responsivo */
@media (max-width:1000px){
  .licencias{grid-template-columns:1fr}
  .iso-grid{grid-template-columns:1fr}
  .enlaces-grid{grid-template-columns:1fr;gap:40px}
  .grid-3{grid-template-columns:1fr}
  .servicio{grid-template-columns:48px 1fr;}
  .servicio>div:last-child{grid-column:2}
}
@media (max-width:820px){
  .menu-btn{display:block}
  nav{position:absolute;left:0;right:0;top:92px;background:#fff;border-bottom:1px solid var(--linea);display:none}
  nav.abierto{display:block}
  nav ul{flex-direction:column;align-items:flex-start;padding:18px 24px 26px;gap:16px}
  .tiene-sub>.sub-menu{position:static;transform:none;box-shadow:none;border:0;border-left:2px solid var(--naranja);margin:6px 0 0 8px;padding:4px 0;min-width:auto;display:none}
  .tiene-sub.sub-abierto>.sub-menu{display:flex}
  .sub-nav{display:none}
  .nosotros,.contacto{grid-template-columns:1fr;gap:40px}
  .credenciales{grid-template-columns:repeat(2,1fr);gap:20px}
  .cifras-int{flex-direction:row;gap:40px}
  section{padding:68px 0}
  .hero{padding:80px 0 70px}
  .hero-fondo{display:none}
}
@media (max-width:520px){
  .marca img{height:60px!important}
  .credenciales{grid-template-columns:1fr}
  .cifras-int{flex-direction:column;gap:28px}
  /* Hero mobile: más contraste */
  .hero-bg::after{background:linear-gradient(180deg,rgba(255,255,255,.92) 40%,rgba(255,255,255,.75) 70%,rgba(246,245,243,.6) 100%)}
  /* Footer mobile: mejor estructura */
  .pie{flex-direction:column;gap:28px;align-items:flex-start}
  footer nav ul{gap:6px}
  footer nav a{font-size:.7rem}
  .pie>div{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;width:100%}
  .pie>div ul{display:flex;flex-direction:column;gap:6px}
  .pie>div ul li{font-size:.78rem}
}