/* ===========================================================
   SOGRUB — Grupo Constructor · hoja de estilo principal
   Paleta institucional (Manual §3.1): #29235C · #2D2E83 · #1A9DD9; tonos derivados según §3.2
   Tipografía (Manual de Identidad): Roboto (encabezados) · Aptos (texto) · NOKA solo en el logotipo
   =========================================================== */

:root{
  --f-titulo:'Roboto',system-ui,sans-serif;
  --f-texto:'Aptos','Aptos Display','Segoe UI','Roboto',system-ui,sans-serif;
  --navy:#29235C;
  --navy-deep:#1B1740;
  --cyan:#1A9DD9;
  --cyan-dark:#1580B5;
  --azul:#2D2E83;
  --cyan-soft:#E6F4FB;
  --gold:#2D2E83;
  --ink:#1C1C28;
  --gray:#6B6F80;
  --line:#E3E5EC;
  --bg:#F7F8FB;
  --white:#fff;
  --wrap:1180px;
  --r:10px;
  --shadow:0 2px 8px rgba(30,28,70,.06), 0 12px 32px rgba(30,28,70,.08);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--f-texto);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.seccion{padding:80px 0}
.seccion--gris{background:var(--bg)}
.seccion--navy{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-deep) 100%);color:#fff}

/* --- tipografía --- */
.display{font-family:var(--f-titulo);font-weight:700;line-height:1.12;letter-spacing:-.01em}
h1.display{font-size:2.6rem;font-size:clamp(2rem,5vw,3.3rem);font-weight:700}
h2.display{font-size:2rem;font-size:clamp(1.6rem,3.4vw,2.4rem)}
h3{font-family:var(--f-titulo);font-size:1.05rem;font-weight:700;color:var(--navy)}
p{color:#3A3D4D}
.mono{font-family:var(--f-titulo);font-weight:500}
.eyebrow{
  font-family:var(--f-titulo);font-weight:500;
  font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan);display:block;margin-bottom:12px;
}
.seccion--navy .eyebrow{color:#6FC9F0}
.intro{font-size:1.05rem;max-width:62ch;color:#4C4F60;margin-top:16px}
.seccion--navy p{color:#C9CBE0}

/* --- botones --- */
.btn{
  display:inline-flex;align-items:center;gap:8px;width:fit-content;
  font-family:var(--f-titulo);font-weight:700;font-size:.92rem;
  padding:14px 26px;border-radius:8px;border:2px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease;
  cursor:pointer;
}
.btn:hover{transform:translateY(-2px)}
.btn--primario{background:var(--cyan);color:#fff}
.btn--primario:hover{background:var(--cyan-dark)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--navy-deep)}
.btn--linea{border-color:currentColor}
.btn--claro{background:#fff;color:var(--navy)}
.btn:focus-visible,a:focus-visible,button:focus-visible,
input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid var(--cyan);outline-offset:3px;
}

/* --- barra de navegación --- */
.nav{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.nav__in{display:flex;align-items:center;gap:20px;height:76px}
.marca{display:flex;align-items:center}
.marca img{height:54px;width:auto;display:block}
.pie .marca img{height:60px}
.nav__links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav__links a{font-size:.88rem;font-weight:500;color:#43465A;transition:color .15s}
.nav__links a:hover,.nav__links a[aria-current="page"]{color:var(--cyan)}
.nav__tel{font-family:var(--f-titulo);font-weight:500;font-size:.82rem;color:var(--navy);font-weight:600;white-space:nowrap}
.nav__cta{background:var(--cyan);color:#fff !important;padding:10px 18px;border-radius:7px;font-weight:700 !important;white-space:nowrap}
.nav__cta:hover{background:var(--cyan-dark);color:#fff !important}
.nav__burger{display:none;margin-left:auto;background:none;border:0;padding:10px;cursor:pointer}
.nav__burger span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.2s}

/* --- héroe --- */
.hero{position:relative;background:var(--navy-deep);color:#fff;overflow:hidden}
.hero__foto{position:absolute;inset:0}
.hero__foto img{width:100%;height:100%;object-fit:cover}
.hero__velo{position:absolute;inset:0;background:linear-gradient(100deg,rgba(27,23,64,.96) 0%,rgba(40,35,91,.9) 45%,rgba(40,35,91,.42) 100%)}
.hero__in{position:relative;padding:100px 0 84px;max-width:720px}
.hero h1{margin-bottom:20px}
.hero h1 em{font-style:normal;color:#6FC9F0}
.hero p{font-size:1.08rem;color:#D5D7E8;max-width:56ch}
.hero__acciones{display:flex;flex-wrap:wrap;align-items:flex-start;gap:14px;margin-top:32px}

/* --- cinta de servicios --- */
.cinta{border-bottom:1px solid var(--line);background:#fff}
.cinta ul{display:flex;flex-wrap:wrap;gap:10px;padding:18px 0}
.cinta li{
  font-size:.8rem;font-weight:600;color:var(--navy);
  border:1px solid var(--line);border-radius:6px;padding:8px 14px;
  display:flex;align-items:center;gap:8px;
}
.cinta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}

/* --- rejillas --- */
.rejilla{display:grid;gap:20px}
.rejilla--2{grid-template-columns:repeat(2,1fr)}
.rejilla--3{grid-template-columns:repeat(3,1fr)}
.rejilla--4{grid-template-columns:repeat(4,1fr)}
.rejilla--5{grid-template-columns:repeat(5,1fr)}

/* --- tarjetas --- */
.tarjeta{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:box-shadow .2s,transform .2s}
.tarjeta:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.tarjeta__num{font-family:var(--f-titulo);font-weight:500;font-size:.75rem;color:var(--cyan);letter-spacing:.1em}
.tarjeta h3{margin:8px 0 8px}
.tarjeta p{font-size:.9rem;color:#4C4F60}

/* --- tarjetas de servicio con foto --- */
.servicio{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.servicio__foto{height:230px;overflow:hidden;background:var(--bg)}
.servicio__foto img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.servicio:hover .servicio__foto img{transform:scale(1.04)}
.servicio__cuerpo{padding:24px;flex:1 0 auto}
.servicio__cuerpo p{font-size:.9rem;color:#4C4F60;margin-top:8px}
.servicio__cuerpo p+p{margin-top:10px}
.servicio__etiquetas{font-family:var(--f-titulo);font-weight:500;font-size:.62rem;letter-spacing:.1em;color:var(--cyan);margin-top:18px;text-transform:uppercase;line-height:1.8}
.servicio--destacado .servicio__foto{height:290px}
.servicio--destacado h3{font-size:1.3rem;font-family:var(--f-titulo);font-weight:600}

/* --- etapas del proceso --- */
.etapa{background:#fff;border:1px solid var(--line);border-top:3px solid var(--cyan);border-radius:0 0 var(--r) var(--r);padding:22px}
.etapa:last-child{border-top-color:var(--gold)}
.etapa__n{font-family:var(--f-titulo);font-weight:500;font-size:.8rem;color:var(--cyan)}
.etapa:last-child .etapa__n{color:var(--gold)}
.etapa h3{margin:8px 0;font-size:.98rem}
.etapa p{font-size:.85rem;color:#4C4F60}
.etapa__entregable{
  font-family:var(--f-titulo);font-weight:500;font-size:.6rem;letter-spacing:.08em;
  color:var(--gold);margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);text-transform:uppercase;
}

/* --- proyecto destacado --- */
.proyecto{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:grid;grid-template-columns:1.1fr 1fr}
.proyecto__foto{min-height:340px}
.proyecto__foto img{width:100%;height:100%;object-fit:cover}
.proyecto__info{padding:36px}
.ficha{display:flex;flex-wrap:wrap;gap:26px;margin-top:22px}
.ficha div span{display:block}
.ficha .v{font-family:var(--f-titulo);font-size:1.1rem;color:var(--navy);font-weight:700;font-variant-numeric:tabular-nums}
.ficha .e{font-size:.7rem;color:var(--gray)}

/* --- cifras --- */
.cifras{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.cifras .v{font-family:var(--f-titulo);font-size:1.9rem;color:var(--navy);font-weight:700;font-variant-numeric:tabular-nums}
.cifras .e{font-size:.78rem;color:var(--gray);margin-top:4px}

/* --- llamada final --- */
.llamada{background:linear-gradient(120deg,var(--cyan),var(--cyan-dark));color:#fff;border-radius:var(--r);padding:40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.llamada h2{font-family:var(--f-titulo);font-size:1.5rem;font-weight:600}
.llamada p{color:rgba(255,255,255,.92);margin-top:6px;font-size:.95rem}

/* --- bloque navy con lista --- */
.bloque-lista{display:grid;gap:12px}
.bloque-lista li{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:16px 18px}
.bloque-lista strong{display:block;font-size:.95rem;color:#fff;margin-bottom:4px}
.bloque-lista span{font-size:.85rem;color:#B9BBD4}

/* --- formulario --- */
.form{display:grid;gap:18px}
.campo label{display:block;font-size:.78rem;color:var(--gray);margin-bottom:6px;font-weight:500}
.campo input,.campo select,.campo textarea{
  width:100%;font-family:inherit;font-size:.95rem;color:var(--ink);
  background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:13px 14px;
}
.campo textarea{min-height:120px;resize:vertical}
.form__fila{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.aviso{font-size:.72rem;color:var(--gray);text-align:center}

/* --- pie --- */
.pie{background:var(--navy-deep);color:#9A9CBD;padding:56px 0 28px;font-size:.85rem}
.pie a:hover{color:#fff}
.pie__cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12)}
.pie h4{color:#fff;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px;font-family:var(--f-titulo);font-weight:500;font-weight:500}
.pie li{margin-bottom:8px}
.pie .marca{color:#fff;margin-bottom:12px}
.pie .marca span{color:var(--cyan)}
.pie__base{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;padding-top:22px;font-size:.76rem}

/* --- botón flotante de WhatsApp --- */
.wa{
  position:fixed;right:20px;bottom:20px;z-index:200;
  width:56px;height:56px;border-radius:50%;background:#25D366;
  display:grid;place-items:center;box-shadow:0 6px 20px rgba(0,0,0,.22);
  transition:transform .2s;
}
.wa:hover{transform:scale(1.07)}
.wa svg{width:30px;height:30px;fill:#fff}

/* --- animación de entrada --- */
.js .revelar{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js .revelar.visible{opacity:1;transform:none}

/* --- responsivo --- */
@media (max-width:960px){
  .rejilla--5,.rejilla--4{grid-template-columns:repeat(2,1fr)}
  .rejilla--3{grid-template-columns:repeat(2,1fr)}
  .proyecto{grid-template-columns:1fr}
  .proyecto__foto{min-height:240px}
  .cifras{grid-template-columns:repeat(2,1fr)}
  .pie__cols{grid-template-columns:1fr 1fr}
  .nav__links{
    display:none;position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:8px 24px 20px;
  }
  .nav__links.abierto{display:flex}
  .nav__links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav__cta{text-align:center;margin-top:14px;border-bottom:0 !important}
  .nav__burger{display:block}
}
@media (max-width:640px){
  .servicio__foto,.servicio--destacado .servicio__foto{height:200px}
  .seccion{padding:56px 0}
  .rejilla--2,.rejilla--3,.rejilla--4,.rejilla--5{grid-template-columns:1fr}
  .form__fila{grid-template-columns:1fr}
  .hero__in{padding:72px 0 60px}
  .llamada{padding:28px;flex-direction:column;align-items:flex-start}
  .pie__cols{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .revelar{opacity:1;transform:none}
}

/* --- banda de fotografía a todo lo ancho --- */
.banda-foto{position:relative;height:420px;overflow:hidden}
.banda-foto img{width:100%;height:100%;object-fit:cover}
.banda-foto__texto{
  position:absolute;left:0;right:0;bottom:0;padding:70px 0 36px;
  background:linear-gradient(to top,rgba(27,23,64,.96) 0%,rgba(27,23,64,.85) 45%,rgba(27,23,64,0) 100%);
  color:#fff;
}
.banda-foto__texto h2{font-family:var(--f-titulo);font-weight:600;font-size:clamp(1.4rem,3vw,2rem);text-shadow:0 2px 12px rgba(10,8,30,.7)}
.banda-foto__texto p{color:#E2E4F2;margin-top:8px;max-width:56ch;font-size:.95rem;text-shadow:0 1px 8px rgba(10,8,30,.6)}

/* --- galería visual --- */
.galeria{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.galeria figure{position:relative;border-radius:8px;overflow:hidden;height:210px;background:var(--bg)}
.galeria img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.galeria figure:hover img{transform:scale(1.05)}
.galeria figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 14px 12px;
  background:linear-gradient(to top,rgba(27,23,64,.9),transparent);
  color:#fff;font-size:.78rem;font-family:var(--f-texto);font-weight:500;
}
@media (max-width:1080px){.galeria{grid-template-columns:repeat(3,1fr) !important}}
@media (max-width:960px){.galeria{grid-template-columns:repeat(2,1fr) !important}.banda-foto{height:320px}}
@media (max-width:640px){.galeria{grid-template-columns:1fr !important}.galeria figure{height:190px}}

/* --- dato medible (tarjeta de resultados) --- */
.dato{border-top:2px solid var(--cyan);padding:22px 0 0}
.dato__cifra{font-family:var(--f-titulo);font-weight:500;font-size:2.1rem;font-weight:600;color:#6FC9F0;line-height:1}
.dato__unidad{font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:#9A9CBD;margin-top:6px}
.dato h3{color:#fff;font-size:.98rem;margin-top:16px}
.dato p{color:#B9BBD4;font-size:.86rem;margin-top:6px}

/* --- enlace de acción dentro de tarjeta --- */
.enlace-cta{
  display:inline-block;margin-top:14px;font-family:var(--f-texto);font-weight:700;font-size:.84rem;
  color:var(--cyan);transition:gap .15s;
}
.enlace-cta:hover{color:var(--cyan-dark)}

/* ===== Ampliación: cadenas comerciales y padrón de proveedores ===== */

/* marcador visible de dato o foto pendiente (retirar antes de publicar) */
.pendiente{display:inline-block;font-family:var(--f-titulo);font-weight:500;font-size:.7rem;
  background:#FFF4DC;color:#8A6416;border:1px dashed #C9A45C;border-radius:4px;padding:1px 6px}
.foto-pendiente{display:flex;align-items:center;justify-content:center;text-align:center;padding:16px;background:repeating-linear-gradient(135deg,#F3F4F8 0 12px,#EAECF2 12px 24px);
  color:#8A6416;font-family:var(--f-titulo);font-weight:500;font-size:.75rem;letter-spacing:.12em;height:230px}

/* banda de texto (sin foto) */
.banda-texto{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-deep) 100%);color:#fff;padding:44px 0}
.banda-texto .wrap{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.banda-texto h2{font-family:var(--f-titulo);font-weight:600;font-size:clamp(1.3rem,2.6vw,1.8rem)}
.banda-texto p{color:#C9CBE0;margin-top:6px;max-width:58ch}

/* lista compacta de entregables */
.entregables{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.entregables li{background:#fff;border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:8px;
  padding:14px 16px;font-size:.9rem;color:var(--navy);font-weight:600}
.entregables li span{display:block;font-weight:400;font-size:.8rem;color:#4C4F60;margin-top:4px}

/* aliados */
.aliados{border:1px dashed #B9BBD4;border-radius:10px;padding:26px;background:#fff}
.aliados ul{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px;margin-top:16px}
.aliados li strong{display:block;color:var(--navy);font-size:.92rem}
.aliados li span{font-size:.84rem;color:#4C4F60}

/* ficha uniforme de proyecto */
.ficha-obra{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.ficha-obra .servicio__foto{height:220px}
.ficha-obra .foto-pendiente{height:220px}
.ficha-obra__cuerpo{padding:22px}
.ficha-obra dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin-top:14px;font-size:.84rem}
.ficha-obra dt{font-family:var(--f-titulo);font-weight:500;font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gray);padding-top:2px}
.ficha-obra dd{color:#3A3D4D}

/* bloque de datos fiscales para expansión y compras */
.expediente{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:30px}
.datos-fiscales{font-family:var(--f-texto);font-size:.95rem;line-height:1.85;color:var(--navy);
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 20px;margin-top:14px;user-select:all}
.docs{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 18px;margin-top:14px}
.docs li{font-size:.88rem;color:#3A3D4D;padding-left:18px;position:relative}
.docs li::before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:700}

@media (max-width:960px){.entregables{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.entregables,.aliados ul,.docs{grid-template-columns:1fr}.ficha-obra dl{grid-template-columns:1fr}}
input[type="hidden"]{display:none}

.banda-texto--clara{background:var(--cyan-soft);color:var(--navy);border-top:1px solid #CFE8F5;border-bottom:1px solid #CFE8F5}
.banda-texto--clara h2{color:var(--navy)}
.banda-texto--clara p{color:#3A3D4D}

/* --- cinta de promesas (tres columnas) --- */
.promesas{border-bottom:1px solid var(--line);background:#fff}
.promesas ul{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.promesas li{padding:20px 24px;font-size:.92rem;font-weight:600;color:var(--navy);border-left:1px solid var(--line);display:flex;gap:12px;align-items:center}
.promesas li:first-child{border-left:0;padding-left:0}
.promesas li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none}

/* --- preguntas frecuentes --- */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:0 20px}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;color:var(--navy);font-size:.95rem;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-weight:700;font-size:1.2rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 18px;font-size:.9rem;color:#4C4F60}
.hero__sec{display:inline-block;margin-top:18px;font-size:.88rem;color:#B9D9F0;text-decoration:underline;text-underline-offset:4px}
@media (max-width:960px){.promesas ul{grid-template-columns:1fr}.promesas li{border-left:0;padding:12px 0;border-bottom:1px solid var(--line)}.faq{grid-template-columns:1fr}}

/* ===== Secuencia de capas BIM (scroll) ===== */
.capas{position:relative}
.capas__grid{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:start}
.capas__visor{position:sticky;top:100px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;height:0;padding-bottom:75%}
.capas__visor img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0;transition:opacity .55s ease;will-change:opacity}
.capas__visor img.activa{opacity:1}
.capas__tag{position:absolute;left:16px;bottom:14px;background:var(--navy);color:#fff;font-family:var(--f-titulo);font-weight:500;font-size:.72rem;letter-spacing:.14em;padding:7px 12px;border-radius:6px;z-index:2}
.capas__pasos{display:grid;gap:18px}
.capa{border:1px solid var(--line);border-left:3px solid var(--line);border-radius:10px;padding:26px 24px;background:#fff;transition:border-color .3s,box-shadow .3s;min-height:200px}
.capa.activa{border-left-color:var(--cyan);box-shadow:var(--shadow)}
.capa .tarjeta__num{color:var(--gray)}
.capa.activa .tarjeta__num{color:var(--cyan)}
.capa h3{margin:8px 0 8px}
.capa p{font-size:.92rem;color:#4C4F60}
@media (max-width:960px){
  .capas__grid{grid-template-columns:1fr}
  .capas__visor{position:relative;top:auto}
  .capa{min-height:0}
}
@media (prefers-reduced-motion:reduce){.capas__visor img{transition:none}}

/* galería de isométricos por disciplina */
.iso-galeria figure{height:260px;background:#fff}
.iso-galeria img{object-fit:contain;padding:10px}
.iso-galeria figcaption{background:linear-gradient(to top,rgba(27,23,64,.9),transparent)}

/* Correo largo (sogrubconstrucciones@outlook.com): que se parta en móvil y no ensanche la rejilla (21-oct) */
.rejilla > * { min-width: 0; }
a[href^="mailto:"] { overflow-wrap: anywhere; }