/* ============================================================================
   RED ELÉCTRICA DEL NORTE — Hoja de estilos
   Estética: industrial · corporativa · premium · tecnológica · alto contraste
   ----------------------------------------------------------------------------
   GUÍA RÁPIDA DE EDICIÓN
   - Colores de marca: ver bloque :root (variables --azul-oscuro, etc.)
   - Tipografías: Montserrat (títulos), Poppins (botones/sub), Inter (texto)
   - Para cambiar el color principal de los botones edita --amarillo
   ============================================================================ */

/* ============================ 1. VARIABLES ============================ */
:root {
  /* Paleta de marca */
  --azul-oscuro:   #0A1F44;
  --azul-electrico:#007BFF;
  --amarillo:      #FFD200;
  --blanco:        #FFFFFF;
  --gris:          #8A8F98;
  --grafito:       #111827;

  /* Fondos y superficies (tema oscuro) */
  --bg:        #070d1c;
  --bg-2:      #0a1226;
  --bg-alt:    #0c1730;
  --surface:   rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border:    rgba(138, 143, 152, 0.18);
  --border-2:  rgba(138, 143, 152, 0.28);

  /* Texto */
  --text:      #eaf0f9;
  --text-dim:  #c4cedd;   /* aclarado para mejor contraste sobre fondos oscuros */
  --text-mute: #9aa1ac;

  /* Acentos / efectos */
  --glow-blue:   0 0 0 1px rgba(0,123,255,.5), 0 12px 40px -12px rgba(0,123,255,.55);
  --glow-yellow: 0 10px 30px -8px rgba(255,210,0,.5);
  --whatsapp:    #25D366;

  /* Tipografía */
  --f-title: 'Montserrat', 'Poppins', system-ui, sans-serif;
  --f-ui:    'Poppins', 'Inter', system-ui, sans-serif;
  --f-body:  'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  /* Estructura */
  --container: 1200px;
  --radius:   18px;
  --radius-sm: 12px;
  --shadow:   0 24px 60px -24px rgba(0,0,0,.7);

  /* Altura aprox. de las barras fijas (para anclas con scroll) */
  --header-h: 84px;
}

/* ============================ 2. RESET / BASE ============================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  /* Compensa el header fijo al saltar a un ancla */
  scroll-padding-top: calc(var(--header-h) + 28px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--f-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
  /* Fondo base con tinte eléctrico sutil */
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(0,123,255,.12), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(255,210,0,.06), transparent 55%);
  background-attachment: fixed;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; }

::selection { background: var(--amarillo); color: var(--azul-oscuro); }

/* ============================ 3. LAYOUT BASE ============================ */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.section { padding: 96px 0; position: relative; }
.section--alt { background: var(--bg-alt); }
/* Líneas eléctricas finas entre secciones */
.section--alt::before,
.section--alt::after {
  content: ""; position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,123,255,.4), rgba(255,210,0,.4), transparent);
}
.section--alt::before { top: 0; }
.section--alt::after  { bottom: 0; }

.section__head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section__title {
  font-family: var(--f-title);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--blanco);
}
.section__intro { margin-top: 16px; color: var(--text-dim); font-size: 1.05rem; }
.section__intro--left { margin-left: 0; }
.section__cta { text-align: center; margin-top: 48px; }

.eyebrow {
  display: inline-block;
  font-family: var(--f-ui);
  font-weight: 600;
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amarillo);
  padding: 6px 14px;
  border: 1px solid rgba(255,210,0,.3);
  border-radius: 999px;
  background: rgba(255,210,0,.06);
  margin-bottom: 18px;
}

.text-grad {
  background: linear-gradient(100deg, var(--azul-electrico), #36b3ff 40%, var(--amarillo));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ============================ 4. BOTONES ============================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--f-ui); font-weight: 600; font-size: .98rem;
  padding: 13px 24px; border-radius: 12px;
  cursor: pointer; transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space: nowrap; position: relative; overflow: hidden;
}
.btn svg { flex-shrink: 0; }
.btn--lg { padding: 16px 30px; font-size: 1.05rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: linear-gradient(135deg, var(--amarillo), #ffc107);
  color: var(--azul-oscuro);
  box-shadow: var(--glow-yellow);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -8px rgba(255,210,0,.6); }

.btn--ghost {
  background: rgba(255,255,255,.04);
  color: var(--blanco);
  border: 1.5px solid var(--border-2);
}
.btn--ghost:hover { border-color: var(--azul-electrico); background: rgba(0,123,255,.12); transform: translateY(-3px); }

.btn--whatsapp { background: var(--whatsapp); color: #fff; box-shadow: 0 10px 30px -8px rgba(37,211,102,.5); }
.btn--whatsapp:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -8px rgba(37,211,102,.65); background: #20bd5a; }

/* Brillo que cruza el botón al pasar el mouse */
.btn::after {
  content: ""; position: absolute; top: 0; left: -120%; width: 60%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-20deg); transition: left .6s ease;
}
.btn:hover::after { left: 130%; }

/* ============================ 5. BARRA SUPERIOR ============================ */
.topbar {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  font-size: .85rem; color: var(--text-dim);
  position: relative; z-index: 60;
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 40px; gap: 20px; }
.topbar__contacts, .topbar__meta { display: flex; align-items: center; gap: 22px; }
.topbar a, .topbar span { display: inline-flex; align-items: center; gap: 7px; }
.topbar a:hover { color: var(--amarillo); }
.topbar svg { color: var(--azul-electrico); }

/* ============================ 6. HEADER / NAV ============================ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7, 13, 28, 0.72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background .3s ease, box-shadow .3s ease;
}
.header.is-scrolled { background: rgba(7, 13, 28, 0.92); box-shadow: 0 10px 30px -16px rgba(0,0,0,.8); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 18px; }

/* --- Logo / Marca --- */
.brand { display: inline-flex; align-items: center; gap: 12px; }
/* Logo en imagen (assets/logo-ren.png). La altura controla el tamaño; el ancho es automático. */
.brand__img { height: 66px; width: auto; display: block; filter: drop-shadow(0 4px 14px rgba(0,123,255,.3)); transition: transform .25s ease; }
.brand:hover .brand__img { transform: scale(1.03); }
.brand__img--footer { height: 118px; }
.brand__mark { width: 46px; height: 46px; filter: drop-shadow(0 4px 12px rgba(0,123,255,.35)); }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__ren { font-family: var(--f-title); font-weight: 900; font-size: 1.5rem; letter-spacing: .02em; }
.brand__ren .ren-r { color: var(--blanco); }
.brand__ren .ren-e { color: var(--azul-electrico); }
.brand__ren .ren-n { color: var(--amarillo); }
.brand__name { font-family: var(--f-ui); font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-mute); margin-top: 3px; }

/* --- Navegación --- */
.nav { display: flex; align-items: center; gap: 6px; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__link {
  font-family: var(--f-ui); font-weight: 500; font-size: .95rem; color: var(--text-dim);
  padding: 9px 14px; border-radius: 9px; position: relative; transition: color .2s ease, background .2s ease;
}
.nav__link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo));
  transform: scaleX(0); transform-origin: left; transition: transform .25s ease;
}
.nav__link:hover, .nav__link.is-active { color: var(--blanco); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }
.nav__cta-mobile { display: none; }

.header__cta { padding: 11px 20px; }

/* --- Hamburguesa --- */
.hamburger { display: none; width: 44px; height: 44px; border-radius: 10px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border: 1px solid var(--border-2); }
.hamburger span { width: 22px; height: 2px; background: var(--blanco); border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================ 7. HERO ============================ */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(70px, 9vw, 120px) 0 110px;
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--azul-oscuro) 55%, var(--bg) 100%);
}
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

/* Foto de fondo del hero + capa oscura (legibilidad del texto a la izquierda) */
.hero__photo { position: absolute; inset: 0; background: url("assets/hero.jpg") center right / cover no-repeat; opacity: .5; }
.hero__overlay { position: absolute; inset: 0; background:
  linear-gradient(90deg, rgba(7,13,28,.97) 0%, rgba(7,13,28,.84) 32%, rgba(10,31,68,.55) 66%, rgba(10,31,68,.4) 100%),
  linear-gradient(0deg, var(--bg) 1%, transparent 46%); }

/* Rejilla técnica */
.hero__grid {
  position: absolute; inset: -2px;
  background-image:
    linear-gradient(rgba(138,143,152,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138,143,152,.07) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 80%);
}
/* Halos de luz */
.hero__glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .55; }
.hero__glow--blue { width: 480px; height: 480px; background: rgba(0,123,255,.5); top: -120px; right: -80px; }
.hero__glow--yellow { width: 360px; height: 360px; background: rgba(255,210,0,.28); bottom: -120px; left: -60px; }

/* Líneas de energía */
.hero__lines { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .7; }
.energy-line {
  fill: none; stroke-width: 2;
  stroke: rgba(0,123,255,.5);
  stroke-dasharray: 14 18; animation: dash 6s linear infinite;
}
.energy-line--2 { stroke: rgba(255,210,0,.45); animation-duration: 9s; }
.energy-line--3 { stroke: rgba(0,123,255,.4); animation-duration: 7.5s; }
@keyframes dash { to { stroke-dashoffset: -320; } }

.hero__towers { position: absolute; bottom: 0; left: 0; width: 100%; height: 260px; opacity: .4; }

.hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; }

.badge { display: inline-flex; align-items: center; gap: 9px; font-family: var(--f-ui); font-size: .82rem; font-weight: 500; color: var(--text-dim); padding: 8px 16px; border: 1px solid var(--border-2); border-radius: 999px; background: var(--surface); margin-bottom: 22px; }
.badge__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--amarillo); box-shadow: 0 0 0 4px rgba(255,210,0,.18); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 4px rgba(255,210,0,.18);} 50% { box-shadow: 0 0 0 8px rgba(255,210,0,.05);} }

.hero__title { font-family: var(--f-title); font-weight: 900; font-size: clamp(2.4rem, 6vw, 4.3rem); line-height: 1.04; letter-spacing: -0.02em; color: var(--blanco); }
.hero__subtitle { font-family: var(--f-ui); font-weight: 600; font-size: clamp(1.05rem, 2.2vw, 1.4rem); color: var(--amarillo); margin-top: 18px; }
.hero__lead { margin-top: 18px; max-width: 560px; color: var(--text-dim); font-size: 1.08rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

/* Tarjetas flotantes */
.hero__cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.float-card {
  display: flex; align-items: center; gap: 14px;
  padding: 20px; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid var(--border); box-shadow: var(--shadow);
  font-family: var(--f-ui); font-weight: 600; font-size: .98rem; color: var(--text);
  animation: floaty 5s ease-in-out infinite;
}
.hero__cards .float-card:nth-child(2) { animation-delay: .8s; }
.hero__cards .float-card:nth-child(3) { animation-delay: 1.6s; }
.hero__cards .float-card:nth-child(4) { animation-delay: 2.4s; }
@keyframes floaty { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-9px);} }
.float-card__ico { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; color: var(--azul-oscuro); background: linear-gradient(135deg, var(--amarillo), #ffc107); flex-shrink: 0; }
.float-card:nth-child(even) .float-card__ico { background: linear-gradient(135deg, var(--azul-electrico), #36b3ff); color: #fff; }

/* Indicador de scroll */
.hero__scroll { position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%); width: 26px; height: 42px; border: 2px solid var(--border-2); border-radius: 14px; z-index: 2; display: grid; place-items: start center; padding-top: 7px; }
.hero__scroll span { width: 4px; height: 8px; border-radius: 4px; background: var(--amarillo); animation: scrolly 1.6s ease-in-out infinite; }
@keyframes scrolly { 0%{ transform: translateY(0); opacity: 1;} 70%{ transform: translateY(12px); opacity: 0;} 100%{ opacity: 0;} }

/* ============================ 8. REVEAL (scroll) ============================ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0s); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ============================ 9. NOSOTROS (Misión/Visión/Valores) ============================ */
.mvv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mvv__card {
  padding: 34px 30px; border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); position: relative; overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.mvv__card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo)); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.mvv__card:hover { transform: translateY(-6px); border-color: var(--border-2); box-shadow: var(--shadow); }
.mvv__card:hover::before { transform: scaleX(1); }
.mvv__ico { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 14px; background: rgba(0,123,255,.12); color: var(--azul-electrico); margin-bottom: 18px; }
.mvv__card h3 { font-family: var(--f-title); font-weight: 700; font-size: 1.3rem; color: var(--blanco); margin-bottom: 12px; }
.mvv__card p { color: var(--text-dim); }
.mvv__values { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 4px; }
.mvv__values li { font-family: var(--f-ui); font-weight: 500; font-size: .88rem; padding: 7px 14px; border-radius: 999px; background: rgba(255,210,0,.08); border: 1px solid rgba(255,210,0,.25); color: var(--amarillo); }

/* ============================ 10. SERVICIOS ============================ */
.cards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }

.service-card {
  padding: 30px 26px; border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); position: relative; overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.service-card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(280px 180px at 50% -20%, rgba(0,123,255,.18), transparent 70%); opacity: 0; transition: opacity .35s ease; pointer-events: none; }
.service-card:hover { transform: translateY(-8px); border-color: rgba(0,123,255,.45); box-shadow: 0 24px 50px -22px rgba(0,123,255,.45); }
.service-card:hover::after { opacity: 1; }
.service-card__ico { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 15px; background: linear-gradient(135deg, rgba(0,123,255,.22), rgba(255,210,0,.14)); color: var(--amarillo); margin-bottom: 20px; border: 1px solid var(--border); }
.service-card:hover .service-card__ico { color: var(--blanco); }
.service-card h3 { font-family: var(--f-title); font-weight: 700; font-size: 1.12rem; line-height: 1.25; color: var(--blanco); margin-bottom: 10px; }
.service-card p { color: var(--text-dim); font-size: .95rem; }

/* ============================ 11. ESPECIALIDADES ============================ */
.spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.spec__col {
  padding: 0; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.spec__col:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-2); }
.spec__col--featured { border-color: rgba(255,210,0,.4); }
.spec__top { display: flex; align-items: center; gap: 14px; padding: 26px 28px; background: linear-gradient(120deg, rgba(0,123,255,.18), rgba(10,31,68,.2)); border-bottom: 1px solid var(--border); }
.spec__col--featured .spec__top { background: linear-gradient(120deg, rgba(255,210,0,.18), rgba(10,31,68,.2)); }
.spec__ico { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; background: rgba(255,255,255,.08); color: var(--amarillo); }
.spec__col--featured .spec__ico { color: var(--amarillo); }
.spec__top h3 { font-family: var(--f-title); font-weight: 800; font-size: 1.35rem; color: var(--blanco); }
.spec__list { padding: 22px 28px 30px; display: grid; gap: 12px; }
.spec__list li { display: flex; align-items: center; gap: 12px; color: var(--text-dim); }
.spec__list li::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, var(--azul-electrico), var(--amarillo)); flex-shrink: 0; transform: rotate(45deg); }

/* ============================ 12. PROYECTOS ============================ */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.project-card {
  padding: 28px 26px; border-radius: var(--radius); position: relative; overflow: hidden;
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.project-card:hover { transform: translateY(-6px); border-color: rgba(255,210,0,.4); box-shadow: var(--shadow); }
.project-card__tag { display: inline-block; font-family: var(--f-ui); font-weight: 600; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--azul-oscuro); background: var(--amarillo); padding: 5px 12px; border-radius: 999px; margin-bottom: 16px; }
.project-card h3 { font-family: var(--f-title); font-weight: 700; font-size: 1.15rem; color: var(--blanco); margin-bottom: 10px; }
.project-card p { color: var(--text-dim); font-size: .95rem; }

/* Banda de indicadores */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; padding: 34px; border-radius: var(--radius); background: linear-gradient(120deg, rgba(0,123,255,.14), rgba(255,210,0,.06)); border: 1px solid var(--border); }
.stat { text-align: center; }
.stat__num, .stat__txt { font-family: var(--f-title); font-weight: 900; font-size: clamp(1.8rem, 4vw, 2.6rem); color: var(--blanco); line-height: 1; }
.stat__txt { font-size: clamp(1.3rem, 3vw, 1.8rem); color: var(--amarillo); }
.stat__suf { font-family: var(--f-title); font-weight: 900; font-size: clamp(1.4rem, 3vw, 2rem); color: var(--amarillo); }
.stat p { margin-top: 10px; color: var(--text-dim); font-size: .9rem; }

/* ============================ 13. RESPALDO (split) ============================ */
.split__inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; }
.split .section__head { text-align: left; margin: 0 0 0; }
.split__text .eyebrow { margin-bottom: 18px; }
.split__text .section__title { text-align: left; }

.check-list { display: grid; gap: 13px; margin: 26px 0 30px; }
.check-list li { display: flex; align-items: flex-start; gap: 13px; color: var(--text); }
.check-list li::before { content: "⚡"; flex-shrink: 0; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; background: rgba(255,210,0,.14); color: var(--amarillo); font-size: .9rem; }

/* Panel tipo tablero */
.panel { padding: 30px; border-radius: var(--radius); background: linear-gradient(160deg, #0e1a36, #0a1226); border: 1px solid var(--border-2); box-shadow: var(--shadow); position: relative; }
.panel::before { content: ""; position: absolute; inset: 0; border-radius: var(--radius); padding: 1px; background: linear-gradient(135deg, rgba(0,123,255,.5), transparent 40%, rgba(255,210,0,.4)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }
.panel__row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--border); font-family: var(--f-ui); color: var(--text-dim); }
.panel__row b { margin-left: auto; color: var(--blanco); }
.panel__led { width: 11px; height: 11px; border-radius: 50%; flex-shrink: 0; }
.panel__led--on { background: #29e07a; box-shadow: 0 0 10px #29e07a; animation: pulse-led 1.8s infinite; }
.panel__led--blue { background: var(--azul-electrico); box-shadow: 0 0 10px var(--azul-electrico); }
@keyframes pulse-led { 0%,100%{ opacity: 1;} 50%{ opacity: .35;} }
.panel__bar { height: 10px; border-radius: 999px; background: rgba(255,255,255,.08); margin: 20px 0 12px; overflow: hidden; }
.panel__bar span { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo)); }
.panel__caption { font-family: var(--f-ui); font-size: .9rem; color: var(--amarillo); text-align: center; }

/* ============================ 14. SOLAR ============================ */
.solar-card {
  display: flex; align-items: center; gap: 18px;
  padding: 24px 26px; border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.solar-card:hover { transform: translateY(-6px); border-color: rgba(255,210,0,.4); box-shadow: var(--glow-yellow); }
.solar-card__ico { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 14px; background: linear-gradient(135deg, rgba(255,210,0,.22), rgba(0,123,255,.12)); color: var(--amarillo); flex-shrink: 0; border: 1px solid var(--border); }
.solar-card h3 { font-family: var(--f-title); font-weight: 700; font-size: 1.05rem; color: var(--blanco); }

/* ============================ 15. PROCESO ============================ */
.process { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; position: relative; }
.process__line { position: absolute; top: 30px; left: 8%; right: 8%; height: 2px; background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo)); opacity: .4; z-index: 0; }
.step { position: relative; z-index: 1; text-align: center; padding: 0 8px; }
.step__num { display: inline-grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; font-family: var(--f-title); font-weight: 800; font-size: 1.4rem; color: var(--azul-oscuro); background: linear-gradient(135deg, var(--amarillo), #ffc107); box-shadow: 0 10px 26px -10px rgba(255,210,0,.6); margin-bottom: 18px; border: 4px solid var(--bg); }
.step h3 { font-family: var(--f-title); font-weight: 700; font-size: 1.05rem; color: var(--blanco); margin-bottom: 8px; }
.step p { color: var(--text-dim); font-size: .92rem; }

/* ============================ 16. POR QUÉ ELEGIRNOS ============================ */
.benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.benefit {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 22px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
  font-family: var(--f-ui); font-weight: 500; color: var(--text);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.benefit:hover { transform: translateX(6px); border-color: rgba(0,123,255,.45); background: rgba(0,123,255,.08); }
.benefit__ico { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg, var(--azul-electrico), #36b3ff); color: #fff; font-weight: 700; flex-shrink: 0; }

/* ============================ 17. CTA ============================ */
.cta { position: relative; padding: 100px 0; overflow: hidden; text-align: center; background: linear-gradient(135deg, var(--azul-oscuro), #061027); }
.cta__bg { position: absolute; inset: 0; z-index: 0; }
.cta__bg::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(138,143,152,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(138,143,152,.06) 1px, transparent 1px); background-size: 50px 50px; mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 75%); -webkit-mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 75%); }
.cta__glow { position: absolute; top: 50%; left: 50%; width: 600px; height: 300px; transform: translate(-50%,-50%); background: radial-gradient(circle, rgba(0,123,255,.4), transparent 60%); filter: blur(80px); }
.cta__inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
.cta__inner h2 { font-family: var(--f-title); font-weight: 800; font-size: clamp(1.8rem, 4vw, 2.8rem); color: var(--blanco); line-height: 1.15; }
.cta__inner p { margin-top: 18px; color: var(--text-dim); font-size: 1.08rem; }
.cta__actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-top: 34px; }

/* ============================ 18. CONTACTO ============================ */
.contact { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: start; }
.contact__form {
  padding: 34px; border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-family: var(--f-ui); font-weight: 500; font-size: .9rem; color: var(--text-dim); margin-bottom: 8px; }
.field__opt { color: var(--text-mute); font-weight: 400; font-size: .82rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px; border-radius: 11px;
  background: rgba(255,255,255,.04); border: 1.5px solid var(--border-2); color: var(--text);
  font-size: .98rem; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input::placeholder, .field textarea::placeholder { color: #6b7384; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--azul-electrico); box-shadow: 0 0 0 4px rgba(0,123,255,.16); background: rgba(0,123,255,.05); }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238A8F98' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 44px; }
.field select option { background: #0c1730; color: var(--text); }
.field input:invalid:not(:placeholder-shown) { border-color: rgba(255,90,90,.6); }
.contact__note { margin-top: 14px; font-size: .9rem; min-height: 1.2em; }
.contact__note.is-ok { color: #29e07a; }
.contact__note.is-error { color: #ff7a7a; }

/* Info de contacto */
.contact__info { padding: 34px; border-radius: var(--radius); background: linear-gradient(160deg, rgba(0,123,255,.1), var(--surface)); border: 1px solid var(--border); }
.contact__info h3 { font-family: var(--f-title); font-weight: 700; font-size: 1.25rem; color: var(--blanco); margin-bottom: 22px; }
.info-item { display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border); color: var(--text-dim); }
.info-item:last-of-type { border-bottom: none; }
.info-item b { color: var(--blanco); font-family: var(--f-ui); }
.info-item__ico { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: rgba(255,255,255,.06); color: var(--azul-electrico); flex-shrink: 0; }
a.info-item:hover .info-item__ico { background: var(--azul-electrico); color: #fff; }
a.info-item:hover b { color: var(--amarillo); }
.contact__cta-box { margin-top: 24px; padding-top: 22px; border-top: 1px dashed var(--border-2); }
.contact__cta-box p { margin-bottom: 12px; color: var(--text-dim); font-size: .95rem; }

/* ============================ 19. FOOTER ============================ */
.footer { background: var(--bg-2); border-top: 1px solid var(--border); padding-top: 64px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 50px; }
.brand--footer { margin-bottom: 16px; }
.brand--footer .brand__ren { font-size: 1.7rem; }
.footer__title { font-family: var(--f-title); font-weight: 700; font-size: 1.1rem; color: var(--blanco); }
.footer__slogan { color: var(--amarillo); font-family: var(--f-ui); font-size: .92rem; margin-top: 6px; }
.footer__col h4 { font-family: var(--f-title); font-weight: 700; font-size: 1rem; color: var(--blanco); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer__col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo)); }
.footer__col ul { display: grid; gap: 11px; }
.footer__col a, .footer__col li { color: var(--text-dim); font-size: .95rem; transition: color .2s ease; }
.footer__col a:hover { color: var(--amarillo); }
.footer__bottom { border-top: 1px solid var(--border); padding: 22px 0; }
.footer__bottom p { text-align: center; color: var(--text-mute); font-size: .88rem; }

/* ============================ 20. WHATSAPP FLOTANTE + VOLVER ARRIBA ============================ */
.whatsapp-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center; color: #fff;
  background: var(--whatsapp); box-shadow: 0 12px 30px -8px rgba(37,211,102,.6);
  transition: transform .25s ease, box-shadow .25s ease;
}
.whatsapp-float::before { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--whatsapp); animation: ring 2.4s ease-out infinite; }
@keyframes ring { 0%{ transform: scale(1); opacity: .7;} 100%{ transform: scale(1.7); opacity: 0;} }
.whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 16px 40px -8px rgba(37,211,102,.8); }

.back-to-top {
  position: fixed; right: 24px; bottom: 90px; z-index: 190;
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center; color: var(--azul-oscuro);
  background: var(--amarillo); box-shadow: var(--glow-yellow);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); }

/* Oculta los botones flotantes mientras el menú móvil está abierto
   (así no se superponen por encima del menú/capa oscura) */
body.menu-open .whatsapp-float,
body.menu-open .back-to-top { opacity: 0; visibility: hidden; pointer-events: none; }

/* ============================ 20b. MEJORAS (progreso · confianza · cobertura · FAQ) ============================ */

/* Barra de progreso de lectura */
.scroll-progress {
  position: fixed; top: 0; left: 0; width: 100%; height: 3px; z-index: 300;
  transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo));
  box-shadow: 0 0 12px rgba(0,123,255,.5);
}

/* Enlace de acento */
.link-accent { color: var(--amarillo); font-weight: 600; }
.link-accent:hover { text-decoration: underline; }

/* Franja de confianza */
.trustband { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.trustband__inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust { display: flex; align-items: center; gap: 16px; padding: 26px 24px; position: relative; }
.trust + .trust::before { content: ""; position: absolute; left: 0; top: 22%; bottom: 22%; width: 1px; background: var(--border); }
.trust__ico { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 13px; flex-shrink: 0; color: var(--amarillo); background: linear-gradient(135deg, rgba(0,123,255,.2), rgba(255,210,0,.12)); border: 1px solid var(--border); }
.trust__txt { display: flex; flex-direction: column; line-height: 1.3; }
.trust__txt b { font-family: var(--f-ui); color: var(--blanco); font-size: 1rem; }
.trust__txt span { color: var(--text-dim); font-size: .86rem; }

/* Cobertura / zona de servicio */
.coverage { max-width: 920px; margin: 0 auto; text-align: center; }
.coverage__list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.coverage__list li {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--f-ui); font-weight: 500; font-size: .95rem; color: var(--text);
  padding: 11px 18px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.coverage__list li::before {
  content: ""; width: 9px; height: 9px; border-radius: 50% 50% 50% 0; transform: rotate(45deg);
  background: linear-gradient(135deg, var(--azul-electrico), var(--amarillo)); flex-shrink: 0;
}
.coverage__list li:hover { transform: translateY(-4px); border-color: rgba(0,123,255,.45); background: rgba(0,123,255,.08); }
.coverage__note { margin-top: 26px; color: var(--text-dim); }

/* Preguntas frecuentes (acordeón con <details>) */
.faq { max-width: 840px; margin: 0 auto; display: grid; gap: 14px; }
.faq__item { border: 1px solid var(--border); border-radius: var(--radius-sm); background: linear-gradient(170deg, var(--surface-2), var(--surface)); overflow: hidden; transition: border-color .25s ease; }
.faq__item[open] { border-color: rgba(0,123,255,.45); }
.faq__item summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 20px 22px; font-family: var(--f-ui); font-weight: 600; font-size: 1.02rem; color: var(--blanco);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; flex-shrink: 0; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px;
  font-size: 1.45rem; font-weight: 400; line-height: 1; color: var(--azul-oscuro);
  background: linear-gradient(135deg, var(--amarillo), #ffc107); transition: transform .3s ease;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item summary:hover { color: var(--amarillo); }
.faq__a { padding: 0 22px 22px; color: var(--text-dim); }
.faq__item[open] .faq__a { animation: faqOpen .35s ease; }
@keyframes faqOpen { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

/* Enlace "Saltar al contenido" (accesibilidad por teclado) */
.skip-link {
  position: fixed; top: -64px; left: 16px; z-index: 400;
  background: var(--amarillo); color: var(--azul-oscuro);
  font-family: var(--f-ui); font-weight: 600; padding: 10px 18px; border-radius: 10px;
  transition: top .25s ease;
}
.skip-link:focus { top: 16px; outline: none; }

/* Etiqueta del botón flotante de WhatsApp (aparece al pasar el mouse) */
.whatsapp-float__label {
  position: absolute; right: 70px; top: 50%; transform: translateY(-50%) translateX(10px);
  background: var(--grafito); color: #fff; font-family: var(--f-ui); font-weight: 600;
  font-size: .85rem; white-space: nowrap; padding: 9px 14px; border-radius: 10px;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.whatsapp-float__label::after { content: ""; position: absolute; right: -5px; top: 50%; transform: translateY(-50%) rotate(45deg); width: 10px; height: 10px; background: var(--grafito); }
.whatsapp-float:hover .whatsapp-float__label { opacity: 1; transform: translateY(-50%) translateX(0); }

/* Franja en movimiento (ticker de servicios) */
.marquee { overflow: hidden; background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 18px 0; }
.marquee__track { display: flex; align-items: center; width: max-content; animation: marquee 38s linear infinite; }
.marquee__track span { display: inline-flex; align-items: center; font-family: var(--f-ui); font-weight: 600; font-size: .92rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-mute); }
.marquee__track span::after { content: "⚡"; color: var(--amarillo); margin: 0 28px; font-size: .8rem; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============================ 20c. IMÁGENES / MARCOS ============================ */

/* Marco de imagen reutilizable (borde eléctrico arriba + degradado abajo + zoom al hover) */
.media-frame { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-2); box-shadow: var(--shadow); }
.media-frame img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.media-frame:hover img { transform: scale(1.05); }
.media-frame::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; z-index: 2; background: linear-gradient(90deg, var(--azul-electrico), var(--amarillo)); }
.media-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(7,13,28,.55)); pointer-events: none; }

/* Banner horizontal de sección (Nosotros, Solar) */
.section-banner { margin-top: 44px; height: clamp(240px, 34vw, 420px); }

/* Imagen del bloque split (Respaldo) + leyenda */
.split__media { height: clamp(300px, 40vw, 460px); }
.media-frame__cap { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 16px 20px; font-family: var(--f-ui); font-weight: 600; color: var(--blanco); font-size: .98rem; display: flex; align-items: center; gap: 10px; }
.media-frame__cap::before { content: "⚡"; color: var(--amarillo); }

/* Tarjetas de proyecto con imagen superior */
.project-card { padding: 0; }
.project-card__img { position: relative; height: 190px; overflow: hidden; }
.project-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.project-card:hover .project-card__img img { transform: scale(1.06); }
.project-card__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(11,18,38,.8)); }
.project-card__img .project-card__tag { position: absolute; top: 14px; left: 14px; z-index: 2; margin: 0; }
.project-card__body { padding: 22px 24px 26px; }

/* ============================ 21. RESPONSIVE ============================ */

/* Tablet grande / laptops pequeñas */
@media (max-width: 1080px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  /* El proceso de 5 pasos se reorganiza a 3 columnas y se oculta la línea conectora */
  .process { grid-template-columns: repeat(3, 1fr); gap: 34px 24px; }
  .process__line { display: none; }
}

/* Tablet — se activa el menú hamburguesa */
@media (max-width: 960px) {
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(330px, 86vw);
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0;
    background: var(--bg-2); border-left: 1px solid var(--border);
    padding: calc(var(--header-h) + 24px) 26px 30px; z-index: 95;
    transform: translateX(100%); transition: transform .35s cubic-bezier(.4,0,.2,1);
    box-shadow: -20px 0 60px -20px rgba(0,0,0,.8); overflow-y: auto;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav__link { display: block; padding: 14px 12px; font-size: 1.05rem; border-bottom: 1px solid var(--border); }
  .nav__link::after { display: none; }
  .nav__cta-mobile { display: inline-flex; margin-top: 22px; }
  .header__cta { display: none; }
  .hamburger { display: flex; }

  /* Capa oscura detrás del menú */
  .nav-overlay { position: fixed; inset: 0; background: rgba(3,6,15,.65); backdrop-filter: blur(2px); z-index: 90; opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease; }
  .nav-overlay.is-open { opacity: 1; visibility: visible; }

  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__cards { max-width: 520px; margin: 0 auto; }
  .split__inner { grid-template-columns: 1fr; gap: 36px; }
  .contact { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .process__line { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .topbar__contacts { flex-wrap: wrap; gap: 16px; }
}

/* Tablet vertical / móviles grandes */
@media (max-width: 760px) {
  .section { padding: 70px 0; }
  .topbar__meta { display: none; }
  .topbar__inner { justify-content: center; }
  .mvv, .spec, .projects, .cards-grid--3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .benefits { grid-template-columns: 1fr; }
  .brand__name { display: none; }
  /* Franja de confianza: 2 columnas con separadores finos */
  .trustband__inner { grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); }
  .trust { background: var(--bg-2); }
  .trust + .trust::before { display: none; }
}

/* Móviles */
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .section__head { max-width: 100%; margin-bottom: 40px; }
  .cards-grid { grid-template-columns: 1fr; }
  .hero__cards { grid-template-columns: 1fr; }
  .hero__actions .btn, .cta__actions .btn { width: 100%; }
  .field-row { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .contact__form, .contact__info { padding: 24px; }
  .topbar__contacts { gap: 14px; font-size: .78rem; }
  .trustband__inner { grid-template-columns: 1fr; }
  .faq__item summary { font-size: .96rem; padding: 18px; }
  .footer__grid { grid-template-columns: 1fr; }
  .brand__mark { width: 40px; height: 40px; }
  .brand__ren { font-size: 1.3rem; }
  .brand__img { height: 54px; }
  .brand__img--footer { height: 100px; }
}

/* ============================ 23. EFECTOS ELÉCTRICOS ============================ */

/* Aurora de energía del hero (resplandor que respira y se desplaza) */
.hero__aurora {
  position: absolute; left: -10%; right: -10%; top: -15%; height: 78%; pointer-events: none;
  background:
    radial-gradient(40% 60% at 22% 30%, rgba(0,123,255,.40), transparent 70%),
    radial-gradient(38% 55% at 80% 22%, rgba(255,210,0,.20), transparent 70%),
    radial-gradient(45% 65% at 60% 65%, rgba(0,180,255,.26), transparent 72%);
  filter: blur(46px); opacity: .6;
  animation: auroraMove 16s ease-in-out infinite alternate;
}
@keyframes auroraMove {
  0%   { transform: translate3d(-4%, -2%, 0) scale(1); }
  50%  { transform: translate3d(5%, 3%, 0) scale(1.1); }
  100% { transform: translate3d(-2%, 1%, 0) scale(1.03); }
}

/* Los halos del hero ahora laten */
.hero__glow--blue { animation: glowPulse 9s ease-in-out infinite; }
.hero__glow--yellow { animation: glowPulse 11s ease-in-out infinite reverse; }
@keyframes glowPulse { 0%, 100% { opacity: .45; transform: scale(1); } 50% { opacity: .72; transform: scale(1.14); } }

/* Cables con pulso de corriente recorriéndolos */
.hero__wires { position: absolute; inset: 0; pointer-events: none; }
.wire { position: absolute; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(0,123,255,.28), transparent); }
.wire i {
  position: absolute; top: 50%; transform: translateY(-50%); width: 90px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, transparent, #36b3ff, #ffffff, transparent); box-shadow: 0 0 14px 1px #36b3ff;
  animation: wireFlow 5.5s linear infinite;
}
.wire:nth-child(2) i { background: linear-gradient(90deg, transparent, var(--amarillo), #fff, transparent); box-shadow: 0 0 14px 1px var(--amarillo); animation-duration: 7.5s; animation-delay: 1.2s; }
.wire:nth-child(3) i { animation-duration: 6.4s; animation-delay: 2.4s; }
@keyframes wireFlow { from { left: -12%; } to { left: 112%; } }

/* Chispas flotantes de energía */
.hero__sparks { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero__sparks span {
  position: absolute; bottom: 26%; width: 4px; height: 4px; border-radius: 50%;
  background: var(--amarillo); box-shadow: 0 0 9px 1px var(--amarillo); opacity: 0;
  animation: sparkFloat 7s ease-in-out infinite;
}
.hero__sparks span:nth-child(even) { background: #36b3ff; box-shadow: 0 0 9px 1px #36b3ff; width: 3px; height: 3px; }
@keyframes sparkFloat {
  0%   { transform: translateY(40px) scale(.5); opacity: 0; }
  15%  { opacity: 1; }
  85%  { opacity: .7; }
  100% { transform: translateY(-190px) scale(1); opacity: 0; }
}

/* Resplandor en el título degradado */
.text-grad { filter: drop-shadow(0 0 22px rgba(0,123,255,.40)); }

/* Divisores eléctricos: la luz recorre la línea */
.section--alt::before, .section--alt::after {
  background: linear-gradient(90deg, transparent, rgba(0,123,255,.12) 18%, rgba(0,180,255,.85) 47%, rgba(255,210,0,.95) 52%, rgba(0,123,255,.12) 82%, transparent);
  background-size: 250% 100%;
  animation: dividerFlow 7s linear infinite;
}
@keyframes dividerFlow { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* Resplandor eléctrico que sigue al cursor (escritorio) */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 480px; height: 480px; margin: -240px 0 0 -240px; border-radius: 50%;
  pointer-events: none; z-index: 50; mix-blend-mode: screen; opacity: 0; transition: opacity .5s ease; will-change: transform;
  background: radial-gradient(circle, rgba(0,123,255,.12), rgba(0,123,255,.05) 45%, transparent 70%);
}
.cursor-glow.is-active { opacity: 1; }

/* ============================ 22. ACCESIBILIDAD / MOVIMIENTO ============================ */
/* Respeta a usuarios que prefieren menos animación */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* Foco visible para navegación por teclado */
:focus-visible { outline: 3px solid var(--amarillo); outline-offset: 3px; border-radius: 6px; }