/* =====================================================================
   ITESGROUP · Home (propuesta "Nuevo Home")
   Tipografía: Playfair Display (titulares) + IBM Plex Sans (texto)
   ===================================================================== */

:root{
  --noche:     #150F3C;   /* fondo oscuro principal  */
  --noche-2:   #1E1650;   /* tarjetas sobre oscuro   */
  --noche-3:   #0E0A2A;   /* pie                     */
  --borde-osc: #2F2670;
  --violeta:   #3B23E3;   /* acento                  */
  --violeta-h: #2A17B0;   /* acento hover            */
  --lila:      #B9B0FF;   /* etiquetas sobre oscuro  */
  --lila-2:    #C9C4E8;
  --lila-3:    #D6D2EE;
  --lila-4:    #E4E1F7;
  --gris-fondo:#F6F5FB;
  --borde:     #E2E0EE;
  --texto:     #4A4766;
  --texto-2:   #5B5778;

  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans:  "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  --ancho: 1240px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:80px; }
body{
  margin:0; font-family:var(--sans); color:var(--noche); background:#fff;
  line-height:1.55; -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; height:auto; display:block; }
a{ color:var(--violeta); }
a:hover{ color:var(--violeta-h); }
input,select,textarea,button{ font:inherit; }

.contenedor{ max-width:var(--ancho); margin:0 auto; }
.seccion{ padding:112px 32px; }
.seccion--gris{ background:var(--gris-fondo); }
.seccion--oscura{ background:var(--noche); color:#fff; }

.etiqueta{
  margin:0 0 14px; font-size:13px; letter-spacing:2px; text-transform:uppercase;
  color:var(--violeta); font-weight:600;
}
.seccion--oscura .etiqueta, .portada .etiqueta{ color:var(--lila); }

h1,h2{ font-family:var(--serif); font-weight:500; margin:0; }
h2{ font-size:clamp(32px,3.6vw,48px); line-height:1.12; }
h3{ margin:0; }

.cabecera{ display:flex; flex-wrap:wrap; gap:24px 64px; align-items:flex-end; justify-content:space-between; }
.cabecera > div{ flex:1 1 560px; min-width:0; }
.cabecera__texto{ flex:1 1 380px; margin:0; font-size:17px; color:var(--texto); }
.enlace-flecha{ font-weight:600; text-decoration:none; }
.seccion--oscura .enlace-flecha{ color:#fff; border-bottom:1px solid #6F66A8; padding-bottom:4px; }

.boton{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  text-decoration:none; border-radius:999px; font-weight:600; font-size:16px;
  padding:16px 28px; border:1px solid transparent; cursor:pointer;
  transition:background .15s ease, border-color .15s ease, transform .15s ease;
}
.boton:hover{ transform:translateY(-1px); }
.boton--solido{ background:var(--violeta); color:#fff; }
.boton--solido:hover{ background:var(--violeta-h); color:#fff; }
.boton--linea{ border-color:#6F66A8; color:#fff; font-weight:500; }
.boton--linea:hover{ border-color:#fff; color:#fff; }

/* --- navegación ---------------------------------------------------- */
.nav{ background:var(--noche); color:#fff; position:sticky; top:0; z-index:50; }
.nav__caja{
  max-width:var(--ancho); margin:0 auto; padding:18px 32px; position:relative;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.nav__logo img{ height:30px; width:auto; }
.nav__enlaces{ display:flex; flex-wrap:wrap; align-items:center; gap:28px; font-size:15px; }
.nav__enlaces a{ color:var(--lila-4); text-decoration:none; }
.nav__enlaces a:hover{ color:#fff; }
.nav__enlaces .boton{ padding:12px 22px; font-size:15px; color:#fff; }
.nav__menu{
  display:none; background:none; border:0; padding:10px; cursor:pointer;
  width:44px; height:44px;
}
.nav__menu span{ display:block; height:2px; background:#fff; margin:5px 0; border-radius:2px; }

/* --- portada ------------------------------------------------------- */
.portada{ background:var(--noche); color:#fff; padding:72px 32px 0; }
.portada__caja{ max-width:var(--ancho); margin:0 auto; display:flex; flex-wrap:wrap; gap:56px; align-items:center; }
.portada__texto{ flex:999 1 560px; min-width:0; }
.portada h1{ font-size:clamp(40px,5.2vw,68px); line-height:1.08; letter-spacing:-1px; }
.portada h1 em{ color:var(--lila); }
.portada__bajada{ margin:28px 0 0; font-size:19px; color:var(--lila-3); max-width:600px; }
.portada__acciones{ display:flex; flex-wrap:wrap; gap:14px; margin-top:36px; }

.modelo{
  flex:1 1 360px; min-width:0; background:var(--noche-2);
  border:1px solid var(--borde-osc); border-radius:20px; padding:32px;
}
.modelo .etiqueta{ letter-spacing:1.5px; margin-bottom:22px; }
.modelo__paso{ display:flex; gap:18px; align-items:flex-start; padding:14px 0; border-top:1px solid var(--borde-osc); }
.modelo__num{
  flex:0 0 auto; width:40px; height:40px; border-radius:999px; background:#2B2178;
  display:flex; align-items:center; justify-content:center; font-weight:600; font-size:14px;
}
.modelo__titulo{ font-weight:600; font-size:17px; }
.modelo__desc{ font-size:14px; color:var(--lila-2); }

.cifras{
  max-width:var(--ancho); margin:64px auto 0;
  display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  border-top:1px solid var(--borde-osc);
}
.cifras > div{ padding:32px 24px 40px 0; }
.cifras strong{ display:block; font-family:var(--serif); font-weight:400; font-size:48px; line-height:1; }
.cifras span{ display:block; margin-top:8px; color:var(--lila-2); font-size:15px; }

/* --- clientes (carrusel de logos) ---------------------------------- */
.clientes{ background:var(--gris-fondo); padding:40px 0; overflow:hidden; }
.clientes__caja{ max-width:var(--ancho); margin:0 auto; padding:0 32px; }
.clientes .etiqueta{ color:var(--texto-2); letter-spacing:1.5px; margin:0 0 20px; }
.carrusel{
  overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.carrusel__pista{
  display:flex; align-items:center; gap:20px; width:max-content;
  margin:0; padding:4px 0; list-style:none;
  animation:carrusel-mover var(--duracion,32s) linear infinite;
}
.carrusel:hover .carrusel__pista{ animation-play-state:paused; }
@keyframes carrusel-mover{ to{ transform:translateX(calc(-50% - 10px)); } }
.cliente{
  flex:0 0 auto; width:190px; height:88px; padding:16px 24px;
  display:flex; align-items:center; justify-content:center;
  background:#fff; border:1px solid var(--borde); border-radius:14px;
}
.cliente img{ max-height:54px; max-width:100%; width:auto; object-fit:contain; }
.cliente__nombre{ font-size:17px; font-weight:600; color:var(--texto); text-align:center; }
@media (prefers-reduced-motion:reduce){
  .carrusel__pista{ animation-duration:calc(var(--duracion,32s) * 1.6); }
}

/* --- servicios ----------------------------------------------------- */
.rejilla{ display:grid; gap:20px; }
.rejilla--servicios{ margin-top:56px; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); }
.servicio{
  border:1px solid var(--borde); border-radius:18px; padding:32px 28px; background:#fff;
  display:flex; flex-direction:column; gap:14px;
}
.servicio__top{ display:flex; align-items:center; justify-content:space-between; gap:12px; }
.servicio__etapa{ font-size:16px; letter-spacing:1.5px; text-transform:uppercase; color:var(--violeta); font-weight:600; }
.servicio__num{ font-family:var(--serif); font-size:28px; color:var(--lila-2); }
.servicio h3{ font-size:22px; font-weight:600; line-height:1.25; }
.servicio p{ margin:0; color:var(--texto); font-size:15px; }
.servicio ul{ margin:4px 0 0; padding:0; list-style:none; display:flex; flex-direction:column; gap:8px; font-size:15px; }
.servicio li{ display:flex; gap:10px; align-items:baseline; }
.servicio li::before{ content:"—"; color:var(--violeta); }
.servicio .enlace-flecha{ margin-top:auto; padding-top:12px; font-size:15px; }

/* --- por qué ------------------------------------------------------- */
.porque{ max-width:var(--ancho); margin:0 auto; display:flex; flex-wrap:wrap; gap:56px; }
.porque__intro{ flex:1 1 380px; min-width:0; }
.porque__intro p:not(.etiqueta){ margin:24px 0 0; font-size:17px; color:var(--texto); }
.porque__rejilla{ flex:999 1 600px; min-width:0; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); }
.razon{ background:#fff; border-radius:18px; padding:28px; }
.razon__ico{ display:flex; width:44px; height:44px; border-radius:12px; background:#ECE9FF; align-items:center; justify-content:center; }
.razon h3{ margin:18px 0 8px; font-size:19px; font-weight:600; }
.razon p{ margin:0; color:var(--texto); font-size:15px; }

/* --- industrias ---------------------------------------------------- */
.industrias h2{ max-width:760px; }
.industrias__lista{
  margin-top:48px; display:grid; grid-template-columns:repeat(auto-fit,minmax(270px,1fr));
  border-top:1px solid var(--borde);
}
.industria{ padding:28px 28px 28px 0; border-bottom:1px solid var(--borde); }
.industria h3{ margin:0 0 8px; font-size:20px; font-weight:600; }
.industria p{ margin:0; color:var(--texto); font-size:15px; }

/* --- casos --------------------------------------------------------- */
.rejilla--casos{ margin-top:56px; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); }
.caso{
  background:var(--noche-2); border:1px solid var(--borde-osc); border-radius:18px; padding:32px;
  display:flex; flex-direction:column; gap:18px;
}
.caso__tag{ font-size:13px; letter-spacing:1.5px; text-transform:uppercase; color:var(--lila); font-weight:600; }
.caso__cifra{ font-family:var(--serif); font-size:44px; line-height:1; }
.caso__label{ color:var(--lila-3); font-size:15px; margin-top:-8px; }
.caso__detalle{ border-top:1px solid var(--borde-osc); padding-top:18px; display:flex; flex-direction:column; gap:10px; font-size:15px; color:var(--lila-3); }
.caso__detalle strong{ color:#fff; }
.caso a{ color:#fff; font-weight:600; text-decoration:none; margin-top:auto; }
.testimonio{ margin:72px 0 0; max-width:900px; }
.testimonio blockquote{ margin:0; font-family:var(--serif); font-style:italic; font-size:clamp(24px,2.6vw,34px); line-height:1.35; }
.testimonio figcaption{ margin-top:20px; color:var(--lila-2); font-size:15px; }

/* --- trayectoria --------------------------------------------------- */
.linea{ margin:48px 0 0; padding:0; list-style:none; display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); }
.linea li{ border-top:2px solid var(--borde); padding:20px 20px 24px 0; position:relative; }
.linea li::before{
  content:""; position:absolute; top:-7px; left:0; width:12px; height:12px;
  border-radius:999px; background:var(--violeta);
}
.linea__anio{ font-family:var(--serif); font-size:26px; }
.linea__desc{ margin-top:6px; color:var(--texto); font-size:15px; }
.sellos{ margin-top:88px; display:flex; flex-wrap:wrap; gap:40px; }
.sellos > div{ flex:1 1 520px; min-width:0; }
.sellos h3{ margin:0 0 20px; font-size:14px; letter-spacing:1.5px; text-transform:uppercase; color:var(--texto-2); font-weight:600; }
.sellos__grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(130px,1fr)); gap:12px; }
.sello{
  border:1px dashed var(--lila-2); border-radius:12px; height:72px;
  display:flex; align-items:center; justify-content:center; color:var(--texto-2); font-size:14px; font-weight:500;
}

/* --- insights ------------------------------------------------------ */
.rejilla--posts{ margin-top:48px; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); }
.post{
  background:#fff; border-radius:18px; padding:28px; text-decoration:none; color:var(--noche);
  display:flex; flex-direction:column; gap:12px; min-height:200px;
  transition:transform .15s ease, box-shadow .15s ease;
}
.post:hover{ color:var(--noche); transform:translateY(-2px); box-shadow:0 12px 32px rgba(21,15,60,.08); }
.post__cat{ font-size:13px; letter-spacing:1.2px; text-transform:uppercase; color:var(--violeta); font-weight:600; }
.post__titulo{ font-family:var(--serif); font-size:24px; line-height:1.25; }
.post__meta{ margin-top:auto; color:var(--texto-2); font-size:14px; }

/* --- contacto ------------------------------------------------------ */
.contacto{ max-width:var(--ancho); margin:0 auto; display:flex; flex-wrap:wrap; gap:56px; }
.contacto__texto{ flex:1 1 420px; min-width:0; }
.contacto__texto > p:not(.etiqueta){ margin:24px 0 0; font-size:17px; color:var(--lila-3); }
.contacto__datos{ margin-top:36px; display:flex; flex-direction:column; gap:10px; font-size:15px; color:var(--lila-3); }
.contacto__datos a{ color:#fff; text-decoration:none; }
.contacto__datos a:hover{ text-decoration:underline; color:#fff; }

.formulario{
  flex:1 1 520px; min-width:0; background:#fff; color:var(--noche); border-radius:20px; padding:36px;
  display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:18px; position:relative;
}
.formulario label{ display:flex; flex-direction:column; gap:6px; font-size:14px; font-weight:500; }
.formulario .ancho{ grid-column:1 / -1; }
.formulario input,.formulario select,.formulario textarea{
  border:1px solid var(--lila-2); border-radius:10px; padding:12px 14px; font-size:15px;
  background:#fff; color:var(--noche); min-height:46px; width:100%;
}
.formulario textarea{ resize:vertical; }
.formulario input:focus,.formulario select:focus,.formulario textarea:focus{
  outline:2px solid var(--violeta); outline-offset:1px; border-color:var(--violeta);
}
.formulario button{ grid-column:1 / -1; font-size:16px; }
.formulario button[disabled]{ opacity:.6; cursor:wait; }
.formulario__trampa{ position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden; }
.formulario__estado{ grid-column:1 / -1; margin:0; font-size:15px; }
.formulario__estado:empty{ display:none; }
.formulario__estado.ok{ color:#147A3E; }
.formulario__estado.error{ color:#B3261E; }

/* --- pie ----------------------------------------------------------- */
.pie{ background:var(--noche-3); color:var(--lila-2); padding:56px 32px 40px; font-size:14px; }
.pie__caja{ max-width:var(--ancho); margin:0 auto; display:flex; flex-wrap:wrap; gap:40px; justify-content:space-between; }
.pie__marca{ flex:1 1 300px; min-width:0; }
.pie__marca img{ height:28px; width:auto; }
.pie__marca p{ margin:14px 0 0; max-width:340px; }
.pie__cols{ display:flex; flex-wrap:wrap; gap:48px; }
.pie__cols div{ display:flex; flex-direction:column; gap:8px; }
.pie__cols strong{ color:#fff; }
.pie a{ color:var(--lila-2); text-decoration:none; }
.pie a:hover{ color:#fff; }
.pie__base{
  max-width:var(--ancho); margin:40px auto 0; padding-top:24px; border-top:1px solid #241C55;
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between;
}

/* --- WhatsApp flotante --------------------------------------------- */
.wa-flotante{
  position:fixed; right:22px; bottom:22px; z-index:60;
  display:inline-flex; align-items:center; gap:10px; padding:13px 20px;
  background:#1C8A4C; color:#fff; border-radius:999px; text-decoration:none;
  font-weight:600; font-size:15px; box-shadow:0 10px 28px rgba(21,15,60,.25);
}
.wa-flotante:hover{ background:#167540; color:#fff; }

/* --- responsivo ---------------------------------------------------- */
@media (max-width:960px){
  .nav__menu{ display:block; }
  .nav__enlaces{
    position:absolute; top:100%; left:0; right:0; background:var(--noche);
    flex-direction:column; align-items:stretch; gap:0; padding:8px 32px 24px;
    border-top:1px solid var(--borde-osc); display:none;
  }
  .nav__enlaces.abierto{ display:flex; }
  .nav__enlaces a{ padding:14px 0; border-bottom:1px solid var(--borde-osc); }
  .nav__enlaces .boton{ margin-top:16px; border-bottom:0; }
}
@media (max-width:640px){
  .seccion{ padding:72px 20px; }
  .portada{ padding:48px 20px 0; }
  .nav__caja{ padding:14px 20px; }
  .nav__enlaces{ padding:8px 20px 24px; }
  .clientes__caja{ padding:0 20px; }
  .cliente{ width:150px; height:74px; padding:12px 18px; }
  .cliente img{ max-height:44px; }
  .modelo, .formulario{ padding:24px; }
  .pie{ padding:48px 20px 32px; }
  .wa-flotante span{ display:none; }
  .wa-flotante{ padding:14px; }
  .cifras{ grid-template-columns:1fr 1fr; }
  .cifras > div{ padding:24px 12px 28px 0; }
  .cifras strong{ font-size:36px; }
}
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  .boton,.post{ transition:none; }
}