/* ===== Electricidad y Antenas DLR — hoja única ===== */
:root{
  --tinta:#0d223b; --texto:#48566b; --suave:#7a8699; --linea:#e3e8f0;
  --fondo:#ffffff; --crema:#f5f8fc; --noche:#07101f;
  --azul:#016dfd; --azul-claro:#e8f1ff; --azul-hondo:#0048b5;
  --verde:#13b981;
  --radio:16px; --radio-g:26px; --ancho:1140px;
  --sombra:0 1px 2px rgba(13,34,59,.05), 0 12px 32px -12px rgba(13,34,59,.18);
  --sombra-alta:0 30px 70px -30px rgba(1,109,253,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fondo);color:var(--texto);
  font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{color:var(--tinta);line-height:1.12;margin:0 0 .45em;letter-spacing:-.025em}
h1{font-size:clamp(2.1rem,6vw,3.6rem);font-weight:850}
h2{font-size:clamp(1.65rem,3.8vw,2.4rem);font-weight:800}
h3{font-size:1.1rem;font-weight:750;letter-spacing:-.015em}
p{margin:0 0 1em}
a{color:var(--azul);text-decoration:none}
img{max-width:100%;height:auto;display:block}
.env{max-width:var(--ancho);margin:0 auto;padding:0 22px}
section{padding:clamp(56px,8vw,104px) 0;position:relative}
.crema{background:var(--crema)}
.centro{text-align:center}
.plomo{max-width:620px;margin:0 auto 46px;color:var(--suave);font-size:1.06rem}
.centro .plomo{text-align:center}

/* etiqueta */
.etq{display:inline-flex;align-items:center;gap:8px;font-size:.76rem;font-weight:750;
  letter-spacing:.1em;text-transform:uppercase;color:var(--azul);
  background:var(--azul-claro);padding:7px 14px;border-radius:999px;margin-bottom:18px}
.etq::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--azul);
  box-shadow:0 0 0 0 rgba(1,109,253,.6);animation:latido 2.4s infinite}
@keyframes latido{70%{box-shadow:0 0 0 9px rgba(1,109,253,0)}100%{box-shadow:0 0 0 0 rgba(1,109,253,0)}}

/* botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 26px;border-radius:999px;font-weight:750;font-size:1rem;
  border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s;
  white-space:nowrap}
.btn svg{width:20px;height:20px;flex:none}
.btn-azul{background:var(--azul);color:#fff;box-shadow:0 14px 30px -12px rgba(1,109,253,.8)}
.btn-azul:hover{transform:translateY(-2px);box-shadow:0 20px 38px -12px rgba(1,109,253,.9)}
.btn-wa{background:#25d366;color:#07321a;box-shadow:0 14px 30px -12px rgba(37,211,102,.8)}
.btn-wa:hover{transform:translateY(-2px)}
.btn-linea{background:#fff;color:var(--tinta);border-color:var(--linea)}
.btn-linea:hover{border-color:var(--azul);color:var(--azul)}
.btn-g{padding:18px 34px;font-size:1.08rem}

/* ===== cabecera ===== */
header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}
header.pegada{border-color:var(--linea);box-shadow:0 8px 24px -18px rgba(13,34,59,.5)}
.barra{display:flex;align-items:center;gap:20px;padding:12px 22px;max-width:var(--ancho);margin:0 auto}
.marca img{height:38px;width:auto}
nav{margin-left:auto;display:flex;gap:28px}
nav a{color:var(--tinta);font-weight:600;font-size:.97rem;position:relative;padding:4px 0}
nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--azul);
  transition:width .22s}
nav a:hover::after{width:100%}
.tel-cab{display:flex;align-items:center;gap:9px;font-weight:800;color:var(--tinta);font-size:1.02rem}
.tel-cab svg{width:18px;height:18px;color:var(--azul)}

/* ===== héroe ===== */
.heroe{padding:clamp(40px,6vw,76px) 0 clamp(60px,8vw,96px);overflow:hidden}
.heroe-rej{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.heroe h1 span{color:var(--azul)}
.heroe p.lead{font-size:1.15rem;max-width:33em;color:var(--texto)}
.acciones{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 22px}
.avales{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.92rem;color:var(--suave);font-weight:600}
.avales span{display:flex;align-items:center;gap:7px}
.avales svg{width:17px;height:17px;color:var(--verde)}

/* escena 3D */
.escena{position:relative;aspect-ratio:1/1;perspective:1200px;transform-style:preserve-3d}
.aura{position:absolute;inset:8% 8%;border-radius:50%;
  background:radial-gradient(circle at 50% 45%,rgba(1,109,253,.3),rgba(1,109,253,.06) 55%,transparent 72%);
  filter:blur(6px);animation:respira 7s ease-in-out infinite}
@keyframes respira{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.09);opacity:1}}
.anillo{position:absolute;inset:6%;border-radius:50%;border:1px dashed rgba(1,109,253,.3);
  animation:gira 36s linear infinite}
.anillo.dos{inset:17%;border-style:solid;border-color:rgba(1,109,253,.14);animation-duration:26s;animation-direction:reverse}
@keyframes gira{to{transform:rotate(360deg)}}
.pieza{position:absolute;transform-style:preserve-3d;will-change:transform}
.pieza img{filter:drop-shadow(0 30px 44px rgba(13,34,59,.22))}
.pieza-principal{inset:14% 10% auto 10%;width:80%}
.pieza-chica{width:25%;background:#fff;border-radius:20px;padding:10px;
  box-shadow:var(--sombra);border:1px solid var(--linea)}
.p-bombilla{top:4%;right:2%}
.p-enchufe{bottom:9%;left:0}
.p-cuadro{bottom:2%;right:8%;width:27%}
.chispa{position:absolute;inset:0;pointer-events:none}
.chispa path{stroke:var(--azul);stroke-width:2;fill:none;stroke-linecap:round;
  stroke-dasharray:14 240;animation:recorre 3.6s linear infinite;opacity:.75}
.chispa path:nth-child(2){animation-delay:1.2s}
.chispa path:nth-child(3){animation-delay:2.4s}
@keyframes recorre{to{stroke-dashoffset:-254}}

/* ===== cifras ===== */
.cifras{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:var(--noche);border-radius:var(--radio-g);padding:34px 28px;color:#fff;
  box-shadow:var(--sombra-alta)}
.cifra{text-align:center}
.cifra b{display:block;font-size:clamp(1.9rem,4vw,2.6rem);font-weight:850;color:#fff;letter-spacing:-.03em}
.cifra small{color:#8fa6c4;font-size:.88rem;font-weight:600}

/* ===== servicios ===== */
.rejilla{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.tarjeta{background:#fff;border:1px solid var(--linea);border-radius:var(--radio-g);padding:26px;
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s,border-color .3s;
  transform-style:preserve-3d;position:relative;overflow:hidden}
.tarjeta::after{content:"";position:absolute;inset:auto -40% -60% auto;width:70%;aspect-ratio:1;
  border-radius:50%;background:radial-gradient(circle,rgba(1,109,253,.12),transparent 70%);
  opacity:0;transition:opacity .35s}
.tarjeta:hover{border-color:rgba(1,109,253,.35);box-shadow:var(--sombra);transform:translateY(-4px)}
.tarjeta:hover::after{opacity:1}
.tarjeta .foto{height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  transform:translateZ(30px)}
.tarjeta .foto img{max-height:120px;width:auto;filter:drop-shadow(0 16px 22px rgba(13,34,59,.18));
  transition:transform .35s}
.tarjeta:hover .foto img{transform:translateY(-5px) scale(1.04)}
.tarjeta .ico{width:50px;height:50px;border-radius:14px;background:var(--azul-claro);color:var(--azul);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.tarjeta .ico svg{width:26px;height:26px}
.tarjeta p{font-size:.97rem;margin:0}
.tarjeta h3{margin-bottom:.35em}

/* ===== pasos ===== */
.pasos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:p}
.paso{padding:28px;background:#fff;border-radius:var(--radio-g);border:1px solid var(--linea);position:relative}
.paso::before{counter-increment:p;content:counter(p);position:absolute;top:-18px;left:26px;
  width:40px;height:40px;border-radius:12px;background:var(--azul);color:#fff;font-weight:850;
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 22px -10px rgba(1,109,253,.9)}
.paso h3{margin-top:14px}

/* ===== zonas ===== */
.zonas{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:780px;margin:0 auto}
.zonas span{background:#fff;border:1px solid var(--linea);border-radius:999px;padding:10px 20px;
  font-weight:650;color:var(--tinta);font-size:.95rem;transition:transform .2s,border-color .2s}
.zonas span:hover{transform:translateY(-3px);border-color:var(--azul);color:var(--azul)}

/* ===== reseña ===== */
.resena{max-width:760px;margin:0 auto;text-align:center}
.resena blockquote{font-size:clamp(1.2rem,2.6vw,1.6rem);line-height:1.45;color:var(--tinta);
  font-weight:650;margin:0 0 20px;letter-spacing:-.02em}
.estrellas{color:#ffb020;letter-spacing:4px;font-size:1.2rem;margin-bottom:16px}

/* ===== contacto ===== */
.contacto{background:var(--noche);color:#c3d2e6}
.contacto h2{color:#fff}
.contacto .plomo{color:#8fa6c4}
.caja-contacto{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.datos li{list-style:none;display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}
.datos{padding:0;margin:0}
.datos .ico{width:44px;height:44px;border-radius:13px;background:rgba(1,109,253,.16);color:#6fa8ff;
  display:flex;align-items:center;justify-content:center;flex:none}
.datos .ico svg{width:21px;height:21px}
.datos b{display:block;color:#fff;font-size:1.02rem}
.datos a{color:#c3d2e6}
.datos a:hover{color:#fff}
form{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radio-g);padding:28px}
label{display:block;font-size:.85rem;font-weight:700;color:#8fa6c4;margin:0 0 7px}
input,textarea{width:100%;padding:14px 16px;border-radius:13px;border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);color:#fff;font:inherit;font-size:1rem;margin-bottom:16px;
  transition:border-color .2s,background .2s}
input:focus,textarea:focus{outline:none;border-color:var(--azul);background:rgba(1,109,253,.1)}
textarea{min-height:96px;resize:vertical}
form .btn{width:100%}
.nota{font-size:.84rem;color:#6d8099;margin:14px 0 0;text-align:center}

/* ===== pie ===== */
footer{background:#050c17;color:#7f93ad;padding:46px 0 110px;font-size:.92rem}
.pie{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
footer img{height:34px;width:auto;opacity:.95}
footer a{color:#7f93ad}
footer a:hover{color:#fff}

/* ===== barra móvil ===== */
.barra-movil{position:fixed;left:0;right:0;bottom:0;z-index:50;display:none;gap:10px;padding:10px 12px
  calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.95);backdrop-filter:blur(12px);
  border-top:1px solid var(--linea)}
.barra-movil .btn{flex:1;padding:14px 10px;font-size:.98rem}

/* ===== revelado ===== */
.rev{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rev.visible{opacity:1;transform:none}

@media (max-width:900px){
  .heroe-rej{grid-template-columns:1fr;gap:10px}
  .escena{max-width:330px;margin:4px auto 0;width:100%}
  .heroe{padding-top:18px}
  .heroe .acciones{margin:24px 0 18px}
  .cifras{grid-template-columns:repeat(2,1fr);gap:26px}
  .pasos{grid-template-columns:1fr}
  .caja-contacto{grid-template-columns:1fr}
  nav,.tel-cab{display:none}
  .barra-movil{display:flex}
  body{padding-bottom:0}
}
@media (max-width:420px){
  .acciones .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important}
  .rev{opacity:1;transform:none}
}