/* ==========================================================================
   Nedertec — Hoja de estilos
   Identidad: fondo Hielo, texto Índigo profundo, acentos en degradado
   ========================================================================== */

:root{
  /* Base */
  --hielo:#E9ECF6;
  --hielo-2:#DDE2F1;
  --blanco:#FFFFFF;
  --indigo:#0A0C1D;

  /* Acentos de marca */
  --azul:#3D6BF7;
  --violeta:#8B4DF7;
  --violeta-suave:#6E4DBF;
  --fucsia:#F0399F;
  --grad:linear-gradient(100deg,var(--azul),var(--violeta) 52%,var(--fucsia));

  /* Texto secundario (contraste verificado sobre --hielo) */
  --niebla:#454B6B;
  --niebla-suave:#5B6188;

  /* Líneas y superficies */
  --linea:rgba(10,12,29,.10);
  --linea-fuerte:rgba(10,12,29,.16);
  --panel:#FFFFFF;
  --sombra:0 24px 60px -30px rgba(10,12,29,.25);

  --display:'Sora',system-ui,sans-serif;
  --body:'Manrope',system-ui,sans-serif;
  --mono:'JetBrains Mono',monospace;

  --radio:18px;
  --wrap:1160px;
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--hielo);
  color:var(--indigo);
  font-family:var(--body);
  font-weight:400;
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--violeta);color:#fff}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
section{padding:88px 0;position:relative}

.g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--indigo);color:var(--hielo);padding:12px 18px;border-radius:10px;
  font-family:var(--mono);font-size:13px;transition:top .2s ease;
}
.skip-link:focus{top:16px}

.eyebrow{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--violeta-suave);display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}

h1,h2,h3,h4{font-family:var(--display);font-weight:600;letter-spacing:-.02em;color:var(--indigo)}

h2.cap{font-size:clamp(28px,4vw,42px);line-height:1.15;margin-bottom:16px}
p.lead{max-width:60ch;font-size:17px;color:var(--niebla);font-weight:400}
p.lead strong{font-weight:700;color:var(--indigo)}

.encabezado-seccion{max-width:640px;margin-bottom:52px}
.encabezado-seccion.centro{margin-left:auto;margin-right:auto;text-align:center}

/* Botones */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--body);font-weight:700;font-size:15px;
  padding:15px 28px;border-radius:99px;transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease;
  white-space:nowrap;
}
.btn-primario{background:var(--indigo);color:var(--hielo);box-shadow:0 12px 30px -10px rgba(10,12,29,.45)}
.btn-primario:hover{transform:translateY(-2px);box-shadow:0 16px 34px -8px rgba(10,12,29,.5)}
.btn-secundario{background:transparent;color:var(--indigo);border:1.5px solid var(--linea-fuerte)}
.btn-secundario:hover{border-color:var(--indigo);transform:translateY(-2px)}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 16px 40px -12px rgba(139,77,247,.55)}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 20px 44px -10px rgba(139,77,247,.65)}
.btn svg{width:18px;height:18px;flex-shrink:0}

/* ================= NAV ================= */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(233,236,246,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, background-color .2s ease;
}
.nav.con-scroll{border-color:var(--linea);background:rgba(233,236,246,.9)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.marca{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.02em}
.marca .isotipo{width:30px;height:30px}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{font-size:14.5px;font-weight:600;color:var(--niebla);transition:color .15s ease}
.nav-links a:hover{color:var(--indigo)}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-cta .btn{padding:11px 20px;font-size:13.5px}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:20px;height:2px;background:var(--indigo);border-radius:2px;position:relative;transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before{position:absolute;top:-7px}
.nav-toggle span::after{position:absolute;top:7px}
.nav-toggle.activo span{background:transparent}
.nav-toggle.activo span::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle.activo span::after{transform:translateY(-7px) rotate(-45deg)}

.nav-mobile{
  display:none;position:fixed;inset:76px 0 0 0;z-index:99;
  background:var(--hielo);padding:32px 24px;overflow-y:auto;
}
.nav-mobile.abierto{display:block}
.nav-mobile a{display:block;font-family:var(--display);font-size:24px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--linea)}
.nav-mobile .nav-cta{flex-direction:column;align-items:stretch;margin-top:28px;gap:12px}
.nav-mobile .btn{width:100%}

/* ================= FONDO DE ONDAS (marca) ================= */
/* Capa fija, detrás de todo el contenido de la página. */
.fondo-ondas{
  position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;
}
.fondo-ondas svg{
  position:absolute;top:0;left:0;
  width:100%;height:100%;
}

/* ================= HERO ================= */
.hero{padding:64px 0 60px}
.hero .wrap{position:relative;z-index:1}
.hero-contenido{max-width:760px}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.06}
.hero p.lead{margin-top:22px;font-size:19px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}

/* ================= PROBLEMA ================= */
.problema-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.dolor{
  background:var(--panel);border:1px solid var(--linea);border-radius:var(--radio);
  padding:30px 28px;box-shadow:var(--sombra);
}
.dolor .icono{width:44px;height:44px;border-radius:12px;background:var(--hielo-2);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.dolor .icono svg{width:22px;height:22px;color:var(--violeta-suave)}
.dolor h4{font-size:17.5px;margin-bottom:8px}
.dolor p{font-size:14.5px;color:var(--niebla)}

/* ================= SERVICIOS ================= */
.servicios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.servicio{
  background:var(--panel);border:1px solid var(--linea);border-radius:var(--radio);
  padding:32px 28px;box-shadow:var(--sombra);position:relative;overflow:hidden;
  transition:transform .2s ease, box-shadow .2s ease;
}
.servicio:hover{transform:translateY(-4px)}
.servicio::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--grad);opacity:0;transition:opacity .2s ease}
.servicio:hover::before{opacity:1}
.servicio .icono{
  width:52px;height:52px;border-radius:14px;margin-bottom:22px;
  background:var(--grad);display:flex;align-items:center;justify-content:center;
}
.servicio .icono svg{width:26px;height:26px;color:#fff}
.servicio h3{font-size:19px;margin-bottom:10px}
.servicio p{font-size:14.5px;color:var(--niebla)}

/* ================= PROCESO ================= */
.proceso-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:paso}
.paso{position:relative;padding-top:8px}
.paso .num{
  font-family:var(--mono);font-size:13px;font-weight:500;
  width:38px;height:38px;border-radius:50%;border:1.5px solid var(--linea-fuerte);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--violeta-suave);
}
.paso h4{font-size:17px;margin-bottom:8px}
.paso p{font-size:14px;color:var(--niebla)}
.paso:not(:last-child)::after{
  content:"";position:absolute;top:19px;left:calc(100% - 8px);width:calc(24px + 8px);height:1px;background:var(--linea-fuerte);
  display:none;
}
@media(min-width:900px){.paso:not(:last-child)::after{display:block}}

/* ================= PARA QUIÉN ================= */
.quien-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.quien-item{
  background:var(--panel);border:1px solid var(--linea);border-radius:14px;
  padding:22px 20px;display:flex;align-items:center;gap:14px;font-family:var(--display);font-weight:600;font-size:15px;
}
.quien-item .punto{width:9px;height:9px;border-radius:50%;background:var(--grad);flex-shrink:0}

/* ================= PRESUPUESTO ================= */
.presupuesto-caja{
  background:var(--indigo);color:var(--hielo);border-radius:24px;padding:56px 48px;
  display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;position:relative;overflow:hidden;
}
.presupuesto-caja::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-140px;top:-140px;
  background:radial-gradient(circle,rgba(139,77,247,.5),transparent 70%);filter:blur(20px);
}
.presupuesto-caja h2{color:var(--hielo)}
.presupuesto-caja p{color:#B7BCDA;position:relative;z-index:1}
.presupuesto-lista{position:relative;z-index:1;display:flex;flex-direction:column;gap:16px}
.presupuesto-lista li{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:13px;letter-spacing:.03em}
.presupuesto-lista li svg{width:18px;height:18px;color:var(--fucsia);flex-shrink:0}

/* ================= SOBRE ================= */
.sobre-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.sobre-isotipo{width:100%;max-width:220px;justify-self:center}
.sobre p.lead{font-size:18px}

/* ================= CTA FINAL ================= */
.cta-final{
  background:var(--grad);border-radius:28px;margin:0 auto;max-width:var(--wrap);
  padding:72px 48px;text-align:center;position:relative;overflow:hidden;
}
.cta-final h2{color:#fff;font-size:clamp(30px,4.5vw,46px)}
.cta-final p{color:rgba(255,255,255,.85);max-width:56ch;margin:16px auto 0;font-size:17px}
.cta-final .btn{margin-top:32px}
.cta-final .btn-primario{background:#fff;color:var(--indigo)}
.cta-final .btn-secundario{border-color:rgba(255,255,255,.5);color:#fff}
.cta-final-ctas{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:32px}

/* ================= FOOTER ================= */
footer{border-top:1px solid var(--linea);padding:56px 0 32px}
.footer-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:32px;padding-bottom:36px}
.footer-marca{display:flex;flex-direction:column;gap:14px;max-width:320px}
.footer-marca .marca{font-size:20px}
.footer-marca p{font-size:14px;color:var(--niebla)}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--linea-fuerte);
  display:flex;align-items:center;justify-content:center;transition:background-color .15s ease, color .15s ease;
}
.footer-social a:hover{background:var(--indigo);color:var(--hielo)}
.footer-social svg{width:18px;height:18px}
.footer-cols{display:flex;gap:64px;flex-wrap:wrap}
.footer-col h5{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--niebla-suave);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:var(--indigo);padding:6px 0}
.footer-col a:hover{color:var(--violeta-suave)}
.footer-bottom{
  border-top:1px solid var(--linea);padding-top:24px;display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--niebla-suave);
}

/* ================= WHATSAPP FLOTANTE ================= */
.wa-flotante{
  position:fixed;bottom:22px;right:22px;z-index:150;
  width:60px;height:60px;border-radius:50%;background:#1FAE5E;
  display:none;align-items:center;justify-content:center;box-shadow:0 14px 30px -8px rgba(31,174,94,.6);
  transition:transform .18s ease;
}
.wa-flotante:hover{transform:scale(1.06)}
.wa-flotante svg{width:30px;height:30px;color:#fff}

/* ================= ANIMACIONES SCROLL ================= */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease}
.reveal.in-view{opacity:1;transform:translateY(0)}
.reveal-grupo > *{transition-delay:calc(var(--i,0) * 70ms)}

/* ================= PÁGINAS LEGALES ================= */
.legal-main{padding:64px 0 96px}
.legal-main h1{font-size:clamp(28px,4vw,38px);margin-bottom:8px}
.legal-main .actualizado{font-family:var(--mono);font-size:12px;color:var(--niebla-suave);margin-bottom:40px;display:block}
.legal-main h2{font-size:20px;margin:36px 0 12px}
.legal-main p, .legal-main li{color:var(--niebla);font-size:15.5px;margin-bottom:12px}
.legal-main ul{padding-left:20px}
.legal-main li{list-style:disc}
.legal-main a.volver{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--violeta-suave);margin-bottom:32px}

/* ================= RESPONSIVE ================= */
@media(max-width:980px){
  .servicios-grid{grid-template-columns:repeat(2,1fr)}
  .proceso-grid{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .quien-grid{grid-template-columns:repeat(2,1fr)}
  .sobre-grid{grid-template-columns:1fr;text-align:center}
  .sobre-isotipo{max-width:160px}
  .presupuesto-caja{grid-template-columns:1fr}
}

@media(max-width:840px){
  .nav-links{display:none}
  .nav-cta .btn-secundario{display:none}
  .nav-toggle{display:flex}
  .wa-flotante{display:flex}
  section{padding:64px 0}
  .problema-grid{grid-template-columns:1fr}
  .servicios-grid{grid-template-columns:1fr}
  .quien-grid{grid-template-columns:1fr}
  .footer-top{flex-direction:column}
  .footer-cols{gap:40px}
  .cta-final{padding:56px 26px}
}

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