/* ==========================================================================
   Termodinámica de Guatemala — Hoja de estilos principal
   Paleta: Azul cielo #1080CB · Naranja #F55801
   ========================================================================== */

/* --- 1. Variables y reset --------------------------------------------- */
:root{
  --azul:#0A7BC4;
  --azul-900:#0C74B8;
  --azul-700:#1183CE;
  --azul-500:#3FA9E8;
  --azul-100:#E1F1FC;
  --azul-50:#F1F8FE;
  --naranja:#F55801;
  --naranja-600:#d94a00;
  --naranja-100:#fff0e6;
  --tinta:#1b2733;
  --gris:#5a6773;
  --gris-claro:#dfe8f0;
  --blanco:#ffffff;
  --fondo:#ffffff;

  --fuente-titulo:'Montserrat', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --fuente-texto:'Open Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --radio:14px;
  --radio-sm:8px;
  --sombra:0 4px 18px rgba(12,116,184,.08);
  --sombra-alta:0 18px 45px rgba(12,116,184,.16);
  --contenedor:1180px;
  --transicion:.28s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--fuente-texto);
  font-size:17px;
  line-height:1.7;
  color:var(--tinta);
  background:var(--fondo);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--azul);text-decoration:none;transition:color var(--transicion);}
a:hover{color:var(--naranja);}
h1,h2,h3,h4{font-family:var(--fuente-titulo);color:var(--azul);line-height:1.18;margin:0 0 .6em;font-weight:800;letter-spacing:-.01em;}
h1{font-size:clamp(2rem,5.2vw,3.4rem);}
h2{font-size:clamp(1.65rem,3.6vw,2.5rem);}
h3{font-size:clamp(1.15rem,2vw,1.4rem);}
p{margin:0 0 1.1em;}
ul{margin:0 0 1.1em;padding-left:1.15em;}
li{margin-bottom:.45em;}
:focus-visible{outline:3px solid var(--naranja);outline-offset:3px;border-radius:4px;}

/* --- 2. Utilidades ----------------------------------------------------- */
.contenedor{width:min(100% - 2.5rem,var(--contenedor));margin-inline:auto;}
.seccion{padding:clamp(3.5rem,7vw,6rem) 0;}
.seccion--gris{background:var(--azul-50);}
.seccion--azul{background:var(--azul);color:#eef8ff;}
.seccion--azul h2,.seccion--azul h3{color:#fff;}
.centrado{text-align:center;}
.solo-lectores{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

.antetitulo{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--fuente-titulo);font-weight:700;font-size:.78rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--naranja);
  margin-bottom:.9rem;
}
.antetitulo::before{content:"";width:28px;height:3px;background:var(--naranja);border-radius:2px;}
.seccion--azul .antetitulo{color:#ff8a3d;}
.seccion--azul .antetitulo::before{background:#ff8a3d;}

.encabezado-seccion{max-width:720px;margin-bottom:3rem;}
.encabezado-seccion.centrado{margin-inline:auto;}
.encabezado-seccion p{color:var(--gris);font-size:1.06rem;margin-bottom:0;}
.seccion--azul .encabezado-seccion p{color:#e0f2fe;}

/* --- 3. Botones -------------------------------------------------------- */
.boton{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--fuente-titulo);font-weight:700;font-size:.95rem;
  padding:.95rem 1.9rem;border-radius:50px;border:2px solid transparent;
  cursor:pointer;text-align:center;line-height:1.2;
  transition:transform var(--transicion),box-shadow var(--transicion),background var(--transicion),color var(--transicion),border-color var(--transicion);
}
.boton:hover{transform:translateY(-2px);}
.boton--primario{background:var(--naranja);color:#fff;box-shadow:0 8px 20px rgba(245,88,1,.28);}
.boton--primario:hover{background:var(--naranja-600);color:#fff;box-shadow:0 12px 26px rgba(245,88,1,.36);}
.boton--secundario{background:var(--azul);color:#fff;}
.boton--secundario:hover{background:var(--azul-900);color:#fff;}
.boton--linea{background:transparent;color:var(--azul);border-color:var(--gris-claro);}
.boton--linea:hover{border-color:var(--azul);color:var(--azul);}
.boton--blanco{background:#fff;color:var(--azul);}
.boton--blanco:hover{background:var(--azul-100);color:var(--azul-900);}
.boton--fantasma{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.boton--fantasma:hover{background:#fff;color:var(--azul);border-color:#fff;}
.boton--ancho{width:100%;}
.boton svg{width:19px;height:19px;flex-shrink:0;}
.grupo-botones{display:flex;flex-wrap:wrap;gap:.9rem;}

/* --- 4. Barra superior + navegación ------------------------------------ */
.barra-superior{background:var(--azul-900);color:#ddf1fe;font-size:.85rem;}
.barra-superior .contenedor{display:flex;justify-content:space-between;align-items:center;gap:1rem;min-height:42px;flex-wrap:wrap;}
.barra-superior a{color:#ddf1fe;}
.barra-superior a:hover{color:#fff;}
.barra-superior__datos{display:flex;gap:1.4rem;flex-wrap:wrap;align-items:center;}
.barra-superior__datos span,.barra-superior__datos a{display:inline-flex;align-items:center;gap:.4rem;}
.barra-superior svg{width:15px;height:15px;fill:currentColor;}
.barra-superior__redes{display:flex;gap:.75rem;align-items:center;}
.barra-superior__redes a{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.1);}
.barra-superior__redes a:hover{background:var(--naranja);}
.barra-superior__redes svg{width:13px;height:13px;}

.cabecera{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--gris-claro);transition:box-shadow var(--transicion);}
.cabecera.fijo{box-shadow:0 6px 24px rgba(12,116,184,.10);}
.cabecera .contenedor{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px;}
.logo img{height:46px;width:auto;}
.nav-principal ul{display:flex;gap:.35rem;list-style:none;margin:0;padding:0;align-items:center;}
.nav-principal li{margin:0;}
.nav-principal a{
  display:block;padding:.55rem .95rem;border-radius:50px;
  font-family:var(--fuente-titulo);font-weight:600;font-size:.93rem;color:var(--tinta);
}
.nav-principal a:hover{background:var(--azul-100);color:var(--azul);}
.nav-principal a.activo{color:var(--azul);background:var(--azul-100);}
.nav-acciones{display:flex;align-items:center;gap:.7rem;}
.nav-principal .boton-movil{display:none;}
.nav-acciones .boton{padding:.72rem 1.35rem;font-size:.88rem;}

.menu-boton{display:none;width:46px;height:46px;border:0;background:var(--azul-100);border-radius:12px;cursor:pointer;padding:0;place-items:center;}
.menu-boton span{display:block;width:20px;height:2px;background:var(--azul);border-radius:2px;position:relative;transition:var(--transicion);}
.menu-boton span::before,.menu-boton span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--azul);border-radius:2px;transition:var(--transicion);}
.menu-boton span::before{top:-6px;}
.menu-boton span::after{top:6px;}
.menu-boton[aria-expanded="true"] span{background:transparent;}
.menu-boton[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.menu-boton[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* --- 5. Hero ----------------------------------------------------------- */
.hero{position:relative;background:linear-gradient(135deg,#0C74B8 0%,#0F7FC8 45%,#2FA3E4 100%);color:#fff;overflow:hidden;padding:clamp(3.5rem,8vw,6.5rem) 0;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 82% 18%,rgba(245,88,1,.32),transparent 42%),
    radial-gradient(circle at 8% 88%,rgba(90,190,240,.42),transparent 46%);
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.10;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,#000,transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,#000,transparent 78%);
}
.hero .contenedor{position:relative;z-index:2;}
.hero__rejilla{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4rem);align-items:center;}
.hero h1{color:#fff;margin-bottom:.5em;}
.hero h1 em{font-style:normal;color:#ff8a3d;}
.hero__texto{font-size:1.12rem;color:#eaf7ff;max-width:52ch;margin-bottom:2rem;}
.hero .antetitulo{color:#ff8a3d;}
.hero .antetitulo::before{background:#ff8a3d;}
.hero__sellos{display:flex;flex-wrap:wrap;gap:1.6rem;margin-top:2.4rem;padding-top:1.8rem;border-top:1px solid rgba(255,255,255,.18);}
.hero__sello{display:flex;align-items:center;gap:.7rem;font-size:.9rem;color:#eaf7ff;line-height:1.35;}
.hero__sello svg{width:26px;height:26px;fill:#ff8a3d;flex-shrink:0;}
.hero__sello strong{display:block;color:#fff;font-family:var(--fuente-titulo);font-size:1.02rem;}

.hero__tarjeta{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:22px;padding:1.9rem;backdrop-filter:blur(6px);}
.hero__tarjeta h2{font-size:1.3rem;color:#fff;margin-bottom:.35em;}
.hero__tarjeta p{color:#e0f2fe;font-size:.95rem;}
.hero__lista{list-style:none;padding:0;margin:0 0 1.6rem;}
.hero__lista li{display:flex;gap:.7rem;align-items:flex-start;color:#f0faff;font-size:.96rem;margin-bottom:.75rem;}
.hero__lista svg{width:20px;height:20px;fill:#ff8a3d;flex-shrink:0;margin-top:3px;}

/* --- 6. Tarjetas y rejillas ------------------------------------------- */
.rejilla{display:grid;gap:1.6rem;}
.rejilla--2{grid-template-columns:repeat(2,1fr);}
.rejilla--3{grid-template-columns:repeat(3,1fr);}
.rejilla--4{grid-template-columns:repeat(4,1fr);}

.tarjeta{
  background:#fff;border:1px solid var(--gris-claro);border-radius:var(--radio);
  padding:2rem 1.75rem;transition:transform var(--transicion),box-shadow var(--transicion),border-color var(--transicion);
  position:relative;overflow:hidden;height:100%;
}
.tarjeta::after{content:"";position:absolute;left:0;top:0;height:4px;width:0;background:var(--naranja);transition:width var(--transicion);}
.tarjeta:hover{transform:translateY(-6px);box-shadow:var(--sombra-alta);border-color:transparent;}
.tarjeta:hover::after{width:100%;}
.tarjeta h3{margin-bottom:.5em;}
.tarjeta p:last-child{margin-bottom:0;}
.tarjeta__icono{
  width:62px;height:62px;border-radius:16px;display:grid;place-items:center;
  background:var(--azul-100);margin-bottom:1.3rem;
}
.tarjeta__icono svg{width:32px;height:32px;fill:var(--azul);}
.tarjeta:hover .tarjeta__icono{background:var(--naranja-100);}
.tarjeta:hover .tarjeta__icono svg{fill:var(--naranja);}
.tarjeta__lista{list-style:none;padding:0;margin:1.1rem 0 0;font-size:.94rem;}
.tarjeta__lista li{display:flex;gap:.55rem;align-items:flex-start;color:var(--gris);margin-bottom:.5rem;}
.tarjeta__lista li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--naranja);flex-shrink:0;margin-top:.55em;}
.tarjeta__enlace{display:inline-flex;align-items:center;gap:.4rem;margin-top:1.3rem;font-family:var(--fuente-titulo);font-weight:700;font-size:.9rem;}
.tarjeta__enlace svg{width:16px;height:16px;fill:currentColor;transition:transform var(--transicion);}
.tarjeta__enlace:hover svg{transform:translateX(4px);}

/* --- 7. Bloque de texto + visual -------------------------------------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center;}
.duo--invertido .duo__visual{order:-1;}
.duo__visual{position:relative;}
.duo__visual img{border-radius:var(--radio);box-shadow:var(--sombra-alta);width:100%;}
.duo__insignia{
  position:absolute;bottom:-22px;right:-14px;background:var(--naranja);color:#fff;
  padding:1.1rem 1.5rem;border-radius:var(--radio);box-shadow:var(--sombra-alta);
  font-family:var(--fuente-titulo);line-height:1.2;max-width:220px;
}
.duo__insignia strong{display:block;font-size:1.9rem;}
.duo__insignia span{font-size:.82rem;font-weight:600;opacity:.92;}

.lista-chequeo{list-style:none;padding:0;margin:0 0 1.6rem;}
.lista-chequeo li{display:flex;gap:.75rem;align-items:flex-start;margin-bottom:.85rem;}
.lista-chequeo svg{width:22px;height:22px;fill:var(--naranja);flex-shrink:0;margin-top:3px;}
.lista-chequeo strong{display:block;font-family:var(--fuente-titulo);color:var(--azul);}
.lista-chequeo span{color:var(--gris);font-size:.95rem;}

/* --- 8. Cifras --------------------------------------------------------- */
.cifras{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;text-align:center;}
.cifra strong{display:block;font-family:var(--fuente-titulo);font-size:clamp(2.1rem,4.5vw,3rem);color:#fff;line-height:1;margin-bottom:.35rem;}
.cifra span{font-size:.92rem;color:#e0f2fe;}
.cifra--claro strong{color:var(--azul);}
.cifra--claro span{color:var(--gris);}

/* --- 9. Proceso -------------------------------------------------------- */
.proceso{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;counter-reset:paso;}
.paso{position:relative;padding-top:2.6rem;}
.paso::before{
  counter-increment:paso;content:"0" counter(paso);
  position:absolute;top:0;left:0;
  font-family:var(--fuente-titulo);font-weight:800;font-size:1.6rem;color:var(--naranja);
}
.paso::after{content:"";position:absolute;top:14px;left:52px;right:-12px;height:2px;background:var(--gris-claro);}
.paso:last-child::after{display:none;}
.paso h3{font-size:1.1rem;margin-bottom:.4em;}
.paso p{font-size:.94rem;color:var(--gris);margin:0;}

/* --- 10. Galería ------------------------------------------------------- */
.filtros{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-bottom:2.5rem;}
.filtro{
  border:1px solid var(--gris-claro);background:#fff;color:var(--gris);
  font-family:var(--fuente-titulo);font-weight:600;font-size:.88rem;
  padding:.6rem 1.3rem;border-radius:50px;cursor:pointer;transition:var(--transicion);
}
.filtro:hover{border-color:var(--azul);color:var(--azul);}
.filtro.activo{background:var(--azul);border-color:var(--azul);color:#fff;}

.galeria{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
.proyecto{
  position:relative;border-radius:var(--radio);overflow:hidden;background:var(--azul-100);
  aspect-ratio:4/3;cursor:pointer;border:0;padding:0;width:100%;display:block;text-align:left;
}
.proyecto img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.proyecto:hover img{transform:scale(1.06);}
.proyecto__capa{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:1.4rem;color:#fff;
  background:linear-gradient(to top,rgba(0,38,92,.92) 0%,rgba(0,38,92,.55) 42%,transparent 78%);
}
.proyecto__capa span{font-size:.76rem;text-transform:uppercase;letter-spacing:.12em;color:#ff8a3d;font-weight:700;font-family:var(--fuente-titulo);}
.proyecto__capa h3{color:#fff;font-size:1.08rem;margin:.3em 0 0;}
.proyecto__dato{margin:.35rem 0 0;font-size:.82rem;color:rgba(255,255,255,.82);display:flex;align-items:center;gap:.4rem;}
.proyecto__dato::before{content:"";width:6px;height:6px;border-radius:50%;background:#ff8a3d;flex-shrink:0;}
.proyecto.oculto{display:none;}
.proyecto:focus-visible{outline:3px solid var(--naranja);outline-offset:3px;}

/* Lightbox */
.visor{position:fixed;inset:0;background:rgba(0,20,50,.93);z-index:1200;display:none;place-items:center;padding:1.5rem;}
.visor.abierto{display:grid;}
.visor img{max-width:min(1000px,92vw);max-height:82vh;border-radius:var(--radio);object-fit:contain;}
.visor__pie{color:#eef8ff;text-align:center;margin-top:1rem;font-size:.95rem;}
.visor__cerrar{position:absolute;top:1.2rem;right:1.4rem;width:46px;height:46px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:1.6rem;cursor:pointer;line-height:1;}
.visor__cerrar:hover{background:var(--naranja);}

/* --- 11. Formulario ---------------------------------------------------- */
.bloque-contacto{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,4vw,3.5rem);align-items:start;}
.formulario{background:#fff;border:1px solid var(--gris-claro);border-radius:var(--radio);padding:clamp(1.6rem,3vw,2.4rem);box-shadow:var(--sombra);}
.campo{margin-bottom:1.15rem;}
.campo label{display:block;font-family:var(--fuente-titulo);font-weight:600;font-size:.88rem;color:var(--azul);margin-bottom:.4rem;}
.campo label .req{color:var(--naranja);}
.campo input,.campo select,.campo textarea{
  width:100%;padding:.85rem 1rem;border:1.5px solid var(--gris-claro);border-radius:var(--radio-sm);
  font-family:var(--fuente-texto);font-size:.98rem;color:var(--tinta);background:#fff;
  transition:border-color var(--transicion),box-shadow var(--transicion);
}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-color:var(--azul);box-shadow:0 0 0 3px rgba(12,116,184,.12);}
.campo textarea{resize:vertical;min-height:130px;}
.campo--doble{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.campo__error{display:none;color:#c0392b;font-size:.83rem;margin-top:.3rem;}
.campo.con-error input,.campo.con-error select,.campo.con-error textarea{border-color:#c0392b;}
.campo.con-error .campo__error{display:block;}
.aviso-form{display:none;padding:1rem 1.2rem;border-radius:var(--radio-sm);margin-bottom:1.2rem;font-size:.94rem;}
.aviso-form.exito{display:block;background:#e8f7ee;color:#1e7a45;border:1px solid #b8e5c9;}
.aviso-form.error{display:block;background:#fdecea;color:#c0392b;border:1px solid #f5c6c2;}
.nota-privacidad{font-size:.83rem;color:var(--gris);margin:1rem 0 0;}
.miel{position:absolute;left:-9999px;opacity:0;}

.datos-contacto{list-style:none;padding:0;margin:0 0 2rem;}
.datos-contacto li{display:flex;gap:1rem;align-items:flex-start;margin-bottom:1.4rem;}
.datos-contacto__icono{width:46px;height:46px;border-radius:12px;background:var(--azul-100);display:grid;place-items:center;flex-shrink:0;}
.datos-contacto__icono svg{width:21px;height:21px;fill:var(--azul);}
.datos-contacto strong{display:block;font-family:var(--fuente-titulo);color:var(--azul);font-size:.98rem;}
.datos-contacto span,.datos-contacto a{color:var(--gris);font-size:.96rem;}

.mapa{border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra);line-height:0;border:1px solid var(--gris-claro);}
.mapa iframe{width:100%;height:420px;border:0;display:block;}

/* --- 12. Acordeón (preguntas frecuentes) ------------------------------- */
.acordeon{border:1px solid var(--gris-claro);border-radius:var(--radio);overflow:hidden;background:#fff;}
.acordeon__item + .acordeon__item{border-top:1px solid var(--gris-claro);}
.acordeon__boton{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:1.25rem 3rem 1.25rem 1.4rem;position:relative;
  font-family:var(--fuente-titulo);font-weight:700;font-size:1.02rem;color:var(--azul);
}
.acordeon__boton::after{content:"+";position:absolute;right:1.3rem;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--naranja);transition:transform var(--transicion);}
.acordeon__boton[aria-expanded="true"]::after{content:"−";}
.acordeon__panel{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.acordeon__panel p{padding:0 1.4rem 1.3rem;margin:0;color:var(--gris);font-size:.97rem;}

/* --- 13. CTA final ----------------------------------------------------- */
.cta{
  background:linear-gradient(120deg,var(--azul-900),var(--azul) 55%,var(--azul-700));
  color:#fff;border-radius:22px;padding:clamp(2.2rem,5vw,3.6rem);
  display:grid;grid-template-columns:1.4fr auto;gap:2rem;align-items:center;
  position:relative;overflow:hidden;
}
.cta::before{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:rgba(245,88,1,.22);}
.cta > *{position:relative;z-index:2;}
.cta h2{color:#fff;margin-bottom:.3em;}
.cta p{color:#e0f2fe;margin:0;max-width:56ch;}

/* --- 14. Pie de página ------------------------------------------------- */
.pie{background:var(--azul-900);color:#e3f3fe;padding-top:clamp(3rem,6vw,4.5rem);font-size:.95rem;}
.pie a{color:#e3f3fe;}
.pie a:hover{color:#fff;}
.pie h4{color:#fff;font-size:1.02rem;margin-bottom:1.1rem;font-family:var(--fuente-titulo);}
.pie__rejilla{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:2.5rem;padding-bottom:3rem;}
.pie__logo{display:inline-block;background:#fff;border-radius:12px;padding:.85rem 1.1rem;margin-bottom:1.2rem;box-shadow:0 2px 10px rgba(0,0,0,.12);}
.pie__logo img{height:44px;width:auto;display:block;}
.pie ul{list-style:none;padding:0;margin:0;}
.pie li{margin-bottom:.6rem;}
.pie__redes{display:flex;gap:.7rem;margin-top:1.2rem;}
.pie__redes a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.09);display:grid;place-items:center;transition:var(--transicion);}
.pie__redes a:hover{background:var(--naranja);transform:translateY(-3px);}
.pie__redes svg{width:17px;height:17px;fill:#fff;}
.pie__contacto li{display:flex;gap:.7rem;align-items:flex-start;}
.pie__contacto svg{width:17px;height:17px;fill:var(--naranja);flex-shrink:0;margin-top:5px;}
.pie__base{border-top:1px solid rgba(255,255,255,.12);padding:1.4rem 0;display:flex;justify-content:space-between;align-items:center;gap:.6rem 1.5rem;flex-wrap:wrap;font-size:.86rem;}
.pie__credito{font-size:.8rem;color:rgba(255,255,255,.62);letter-spacing:.01em;}
.pie__credito strong{font-family:var(--fuente-titulo);font-weight:700;color:rgba(255,255,255,.9);}
.pie__credito a{color:inherit;text-decoration:none;}
.pie__credito a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}

/* --- 15. Flotantes ----------------------------------------------------- */
.wasap{
  position:fixed;right:20px;bottom:20px;z-index:950;
  width:60px;height:60px;border-radius:50%;background:#25D366;
  display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.42);
  transition:transform var(--transicion);
}
.wasap:hover{transform:scale(1.08);}
.wasap svg{width:32px;height:32px;fill:#fff;}
.wasap::after{
  content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;
  animation:pulso 2.4s infinite;
}
@keyframes pulso{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.6);opacity:0}}

.arriba{
  position:fixed;right:24px;bottom:92px;z-index:940;width:44px;height:44px;border-radius:50%;
  background:var(--azul);border:0;cursor:pointer;display:grid;place-items:center;
  opacity:0;visibility:hidden;transition:var(--transicion);box-shadow:var(--sombra);
}
.arriba.visible{opacity:1;visibility:visible;}
.arriba svg{width:18px;height:18px;fill:#fff;}

/* --- 16. Animación de entrada ------------------------------------------ */
.js .animar{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease;}
.js .animar.visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .js .animar{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}

/* --- 17. Responsive ---------------------------------------------------- */
@media (max-width:1024px){
  .rejilla--4{grid-template-columns:repeat(2,1fr);}
  .proceso{grid-template-columns:repeat(2,1fr);}
  .paso:nth-child(2)::after{display:none;}
  .pie__rejilla{grid-template-columns:1fr 1fr;gap:2rem;}
  .hero__rejilla{grid-template-columns:1fr;}
  .hero__tarjeta{max-width:560px;}
}
@media (max-width:900px){
  .cabecera .contenedor{min-height:68px;}
  .menu-boton{display:grid;}
  .nav-acciones .boton{display:none;}
  .nav-principal{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--gris-claro);box-shadow:0 14px 30px rgba(12,116,184,.12);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .nav-principal.abierto{max-height:520px;}
  .nav-principal ul{flex-direction:column;align-items:stretch;gap:0;padding:.6rem 1.25rem 1.25rem;}
  .nav-principal a{padding:.85rem .6rem;border-radius:var(--radio-sm);border-bottom:1px solid var(--gris-claro);}
  .nav-principal li:last-child a{border-bottom:0;}
  .nav-principal .boton-movil{display:block;margin-top:.9rem;}
  .nav-principal .boton-movil a{background:var(--naranja);color:#fff;text-align:center;border:0;border-radius:50px;}
  .barra-superior__datos span:not(.tel){display:none;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .rejilla--2,.rejilla--3,.rejilla--4{grid-template-columns:1fr;}
  .duo{grid-template-columns:1fr;}
  .duo--invertido .duo__visual{order:0;}
  .duo__insignia{position:static;margin-top:1rem;max-width:none;}
  .galeria{grid-template-columns:repeat(2,1fr);}
  .cifras{grid-template-columns:repeat(2,1fr);gap:2rem 1rem;}
  .bloque-contacto{grid-template-columns:1fr;}
  .cta{grid-template-columns:1fr;text-align:left;}
  .pie__rejilla{grid-template-columns:1fr;gap:2.2rem;}
  .pie__base{justify-content:center;text-align:center;}
  .proceso{grid-template-columns:1fr;gap:1.8rem;}
  .paso::after{display:none;}
  .campo--doble{grid-template-columns:1fr;gap:0;}
  .mapa iframe{height:320px;}
}
@media (max-width:600px){
  .barra-superior__redes{display:none;}
  .barra-superior .contenedor{justify-content:center;min-height:36px;}
  .barra-superior__datos{gap:.8rem;justify-content:center;}
}
@media (max-width:480px){
  .barra-superior{font-size:.75rem;}
  .logo img{height:38px;}
  .galeria{grid-template-columns:1fr;}
  .grupo-botones .boton{width:100%;}
  .wasap{width:54px;height:54px;right:16px;bottom:16px;}
  .arriba{right:20px;bottom:82px;}
}