/* ==========================================================================
   SISTEMA DE DISEÑO INDUSTRIAL — LÍNEAS ELÉCTRICAS 13.8 kV A 230 kV
   Paleta: Azul Eléctrico, Gris Oscuro Industrial, Blanco Técnico y Ámbar Seguridad
   ========================================================================== */

:root {
  --bg-dark-950: #070c17;
  --bg-dark-900: #0b1324;
  --bg-dark-800: #111c33;
  --bg-dark-700: #1e293b;

  --bg-light-50: #f8fafc;
  --bg-light-100: #f1f5f9;
  --bg-white: #ffffff;

  --electric-600: #0066ff;
  --electric-500: #0ea5e9;
  --electric-400: #38bdf8;
  --electric-glow: rgba(14, 165, 233, 0.25);

  --amber-600: #ea580c;
  --amber-500: #f59e0b;
  --amber-400: #fbbf24;
  --amber-glow: rgba(245, 158, 11, 0.28);

  --text-dark-900: #0f172a;
  --text-dark-700: #334155;
  --text-dark-500: #64748b;

  --text-light-100: #f8fafc;
  --text-light-300: #cbd5e1;
  --text-light-400: #94a3b8;

  --border-dark: rgba(148, 163, 184, 0.16);
  --border-light: #e2e8f0;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(7, 12, 23, 0.12);
  --shadow-lg: 0 20px 45px rgba(7, 12, 23, 0.28);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-sans);
  color: var(--text-dark-900);
  background-color: var(--bg-light-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

ul {
  list-style: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ==========================================================================
   BARRA SUPERIOR TÉCNICA
   ========================================================================== */
.topbar {
  background-color: var(--bg-dark-950);
  color: var(--text-light-300);
  border-bottom: 1px solid var(--border-dark);
  font-size: 0.8125rem;
  padding: 0.45rem 0;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.topbar-slogan {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--amber-500);
  box-shadow: 0 0 8px var(--amber-500);
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.voltage-pills {
  display: inline-flex;
  gap: 0.35rem;
}

.v-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--electric-400);
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.28);
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-light-300);
}

.topbar-link:hover {
  color: var(--amber-400);
}

.btn-config-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(245, 158, 11, 0.14);
  color: var(--amber-400);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 4px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-config-brand:hover {
  background: rgba(245, 158, 11, 0.25);
}

/* ==========================================================================
   1. ENCABEZADO (HEADER)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 19, 36, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dark);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.18), rgba(245, 158, 11, 0.12));
  border: 1px solid rgba(56, 189, 248, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--bg-white);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--electric-400);
  letter-spacing: 0.02em;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  color: var(--text-light-300);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
}

.nav-link:hover,
.nav-link.active {
  color: var(--bg-white);
  background: rgba(255, 255, 255, 0.07);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-dark);
  color: var(--bg-white);
  padding: 0.45rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ==========================================================================
   BOTONES INDUSTRIALES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 0.975rem;
}

.btn-xl {
  padding: 1.05rem 1.9rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.btn-amber {
  background: linear-gradient(135deg, var(--amber-500), var(--amber-600));
  color: #ffffff;
  box-shadow: 0 6px 20px var(--amber-glow);
}

.btn-amber:hover {
  transform: translateY(-1px);
  filter: brightness(1.07);
  box-shadow: 0 10px 26px var(--amber-glow);
}

.btn-electric {
  background: linear-gradient(135deg, var(--electric-600), var(--electric-500));
  color: #ffffff;
  box-shadow: 0 6px 20px var(--electric-glow);
}

.btn-electric:hover {
  transform: translateY(-1px);
  filter: brightness(1.08);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.06);
  color: var(--bg-white);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: var(--bg-white);
}

.btn-outline-electric {
  background: rgba(14, 165, 233, 0.1);
  color: var(--electric-400);
  border-color: rgba(56, 189, 248, 0.45);
  padding: 0.75rem 1.2rem;
}

.btn-outline-electric:hover {
  background: var(--electric-600);
  color: var(--bg-white);
}

.btn-outline-dark {
  background: var(--bg-white);
  color: var(--text-dark-900);
  border-color: #cbd5e1;
}

.btn-outline-dark:hover {
  border-color: var(--text-dark-900);
  background: var(--bg-light-100);
}

.btn-whatsapp {
  background: #16a34a;
  color: #ffffff;
  padding: 0.8rem 1.2rem;
}

.btn-whatsapp:hover {
  background: #15803d;
}

/* ==========================================================================
   2. HERO PRINCIPAL
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 650px;
  display: flex;
  align-items: center;
  padding: 5rem 0;
  background-color: var(--bg-dark-950);
  color: var(--bg-white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('assets/hero-transmission.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  filter: contrast(1.06) brightness(0.68);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(7, 12, 23, 0.94) 0%,
    rgba(11, 19, 36, 0.84) 55%,
    rgba(7, 12, 23, 0.72) 100%
  );
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(56, 189, 248, 0.12) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.45;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 2.75rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(14, 165, 233, 0.14);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--electric-400);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.35rem;
}

.hero-title {
  font-size: clamp(2rem, 3.6vw, 3.15rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
}

.text-gradient-electric {
  background: linear-gradient(90deg, #38bdf8 0%, #fbbf24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.08rem;
  color: var(--text-light-300);
  max-width: 680px;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-metrics {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-dark);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--amber-400);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-light-400);
}

.metric-divider {
  width: 1px;
  height: 34px;
  background: var(--border-dark);
}

/* Tarjeta técnica derecha en Hero */
.hero-tech-card {
  background: rgba(17, 28, 51, 0.86);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
}

.tech-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.tech-tag {
  color: var(--amber-400);
  font-weight: 700;
}

.tech-indicator {
  color: var(--electric-400);
}

.tech-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.tech-card-desc {
  font-size: 0.875rem;
  color: var(--text-light-300);
  margin-bottom: 1.25rem;
}

.hero-voltage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.hv-selector {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  padding: 0.9rem;
  border-radius: var(--radius-md);
  background: rgba(7, 12, 23, 0.65);
  border: 1px solid var(--border-dark);
  color: var(--bg-white);
  cursor: pointer;
  transition: all 0.2s ease;
}

.hv-selector:hover {
  border-color: var(--electric-400);
  background: rgba(14, 165, 233, 0.14);
  transform: translateY(-2px);
}

.hv-kv {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--electric-400);
}

.hv-type {
  font-size: 0.78rem;
  color: var(--text-light-300);
  margin-top: 0.15rem;
}

.hv-arrow {
  font-size: 0.75rem;
  color: var(--amber-400);
  font-weight: 600;
  margin-top: 0.5rem;
}

.tech-card-footer {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  color: var(--text-light-300);
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-dark);
}

/* ==========================================================================
   ESTILOS GENERALES DE SECCIONES
   ========================================================================== */
.section {
  padding: 5.5rem 0;
}

.section-dark {
  background-color: var(--bg-dark-900);
  color: var(--bg-white);
}

.section-light {
  background-color: var(--bg-light-50);
  color: var(--text-dark-900);
}

.section-header {
  max-width: 760px;
  margin: 0 auto 3.25rem;
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--electric-500);
  margin-bottom: 0.6rem;
}

.section-dark .section-eyebrow {
  color: var(--amber-400);
}

.section-title {
  font-size: clamp(1.75rem, 2.8vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.85rem;
}

.section-description {
  font-size: 1.04rem;
  color: var(--text-dark-700);
}

.section-dark .section-description {
  color: var(--text-light-300);
}

/* ==========================================================================
   3. TARJETAS DE NIVELES DE TENSIÓN
   ========================================================================== */
.voltage-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.voltage-card {
  background: var(--bg-dark-800);
  border: 1px solid var(--border-dark);
  border-top: 4px solid var(--electric-500);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.voltage-card:nth-child(3),
.voltage-card:nth-child(4) {
  border-top-color: var(--amber-500);
}

.voltage-card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: var(--shadow-lg);
}

.vc-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.15rem;
}

.vc-kv {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--bg-white);
  line-height: 1.1;
}

.vc-category {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--electric-400);
  margin-top: 0.25rem;
}

.vc-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(14, 165, 233, 0.12);
  color: var(--amber-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vc-description {
  font-size: 0.94rem;
  color: var(--text-light-100);
  margin-bottom: 1.2rem;
  font-weight: 500;
}

.vc-highlights {
  border-top: 1px solid var(--border-dark);
  padding-top: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.vc-highlights li {
  font-size: 0.82rem;
  color: var(--text-light-300);
  position: relative;
  padding-left: 1rem;
}

.vc-highlights li::before {
  content: '▪';
  position: absolute;
  left: 0;
  color: var(--amber-400);
}

/* ==========================================================================
   4. PRODUCTOS Y ELEMENTOS SUMINISTRADOS
   ========================================================================== */
.product-filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.4rem;
}

.filter-chip {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  color: var(--text-dark-700);
  padding: 0.5rem 1.05rem;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-chip:hover,
.filter-chip.active {
  background: var(--bg-dark-900);
  color: var(--bg-white);
  border-color: var(--bg-dark-900);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.35rem;
  margin-bottom: 2.5rem;
}

.product-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  display: flex;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.product-card:hover {
  border-color: var(--electric-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pc-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(0, 102, 255, 0.08);
  color: var(--electric-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pc-body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pc-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-dark-900);
  margin-bottom: 0.4rem;
}

.pc-text {
  font-size: 0.865rem;
  color: var(--text-dark-700);
  margin-bottom: 0.9rem;
}

.pc-quote-btn {
  align-self: flex-start;
  background: transparent;
  border: 1px solid #cbd5e1;
  color: var(--electric-600);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
}

.pc-quote-btn:hover,
.pc-quote-btn.added {
  background: var(--electric-600);
  border-color: var(--electric-600);
  color: var(--bg-white);
}

.compliance-banner {
  background: linear-gradient(135deg, var(--bg-dark-900), var(--bg-dark-800));
  color: var(--bg-white);
  border-left: 5px solid var(--amber-500);
  border-radius: var(--radius-md);
  padding: 1.6rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: var(--shadow-md);
}

.cb-icon {
  color: var(--amber-400);
  flex-shrink: 0;
}

.cb-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light-100);
  flex: 1;
}

/* ==========================================================================
   5. CAMBIOS DE DIRECCIÓN (HORIZONTAL Y VERTICAL)
   ========================================================================== */
.direction-blocks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.direction-card {
  background: var(--bg-dark-800);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.direction-horizontal {
  border-top: 4px solid var(--electric-400);
}

.direction-vertical {
  border-top: 4px solid var(--amber-500);
}

.dir-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  margin-bottom: 0.6rem;
}

.dir-badge-blue {
  background: rgba(56, 189, 248, 0.14);
  color: var(--electric-400);
}

.dir-badge-amber {
  background: rgba(245, 158, 11, 0.16);
  color: var(--amber-400);
}

.dir-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1.2rem;
}

.dir-diagram {
  margin-bottom: 1.35rem;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.dir-main-text {
  background: rgba(7, 12, 23, 0.55);
  border-left: 3px solid var(--electric-400);
  padding: 0.95rem 1.1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.95rem;
  color: var(--text-light-100);
  margin-bottom: 1.35rem;
}

.direction-vertical .dir-main-text {
  border-left-color: var(--amber-500);
}

.dir-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-light-400);
  margin-bottom: 0.85rem;
}

.dir-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
  flex: 1;
}

.dir-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: var(--text-light-300);
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.16);
  color: var(--electric-400);
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.check-amber {
  background: rgba(245, 158, 11, 0.18);
  color: var(--amber-400);
}

/* ==========================================================================
   6. ESPECIFICACIONES TÉCNICAS Y FORMULARIO DE PROYECTO
   ========================================================================== */
.specs-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 2.25rem;
  align-items: start;
}

.specs-criteria-panel {
  background: var(--bg-dark-900);
  color: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.specs-panel-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.specs-panel-subtitle {
  font-size: 0.9rem;
  color: var(--text-light-300);
  margin-bottom: 1.5rem;
}

.specs-criteria-list {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}

.specs-criteria-list li {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--border-dark);
}

.specs-criteria-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.sc-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--amber-400);
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  flex-shrink: 0;
}

.sc-content strong {
  display: block;
  font-size: 0.93rem;
  color: var(--bg-white);
}

.sc-content span {
  display: block;
  font-size: 0.82rem;
  color: var(--text-light-400);
  margin-top: 0.1rem;
}

.specs-form-card,
.contact-form-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.1rem;
  box-shadow: var(--shadow-md);
}

.sfc-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.sfc-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--electric-600);
}

.sfc-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0.25rem 0;
}

.sfc-desc {
  font-size: 0.9rem;
  color: var(--text-dark-700);
}

/* ==========================================================================
   FORMULARIOS TÉCNICOS Y DROPZONE
   ========================================================================== */
.tech-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.38rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dark-900);
}

.req {
  color: var(--amber-600);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-sm);
  background: var(--bg-light-50);
  color: var(--text-dark-900);
  font-size: 0.92rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--electric-600);
  background: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.14);
}

.selected-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.selected-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(0, 102, 255, 0.1);
  color: var(--electric-600);
  border: 1px solid rgba(0, 102, 255, 0.28);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.selected-tag button {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-weight: 800;
}

.file-dropzone {
  position: relative;
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  background: var(--bg-light-50);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.file-dropzone:hover,
.file-dropzone.dragover {
  border-color: var(--electric-600);
  background: rgba(0, 102, 255, 0.04);
}

.file-input-hidden {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-dark-700);
  font-size: 0.88rem;
}

.dropzone-content small {
  font-size: 0.76rem;
  color: var(--text-dark-500);
}

.file-list {
  margin-top: 0.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
}

.file-list li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  color: var(--text-dark-900);
}

.form-actions-split {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.form-actions-split .btn {
  flex: 1;
}

.form-feedback {
  margin-top: 0.5rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
}

.form-feedback.success {
  background: #ecfdf5;
  border: 1px solid #10b981;
  color: #065f46;
}

.form-feedback.error {
  background: #fef2f2;
  border: 1px solid #ef4444;
  color: #991b1b;
}

/* ==========================================================================
   7. SERVICIOS Y 8. BENEFICIOS
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.service-card {
  background: var(--bg-dark-800);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--electric-400);
}

.srv-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(14, 165, 233, 0.14);
  color: var(--electric-400);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
}

.srv-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.55rem;
  color: var(--bg-white);
}

.srv-text {
  font-size: 0.9rem;
  color: var(--text-light-300);
}

/* 8. Beneficios */
.benefits-box {
  background: linear-gradient(145deg, rgba(17, 28, 51, 0.95), rgba(7, 12, 23, 0.95));
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
}

.benefits-header {
  text-align: center;
  margin-bottom: 2.25rem;
}

.benefits-title {
  font-size: 1.75rem;
  font-weight: 800;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.benefit-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-dark);
  padding: 1.25rem;
  border-radius: var(--radius-md);
}

.benefit-check {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--bg-dark-950);
  background: var(--amber-400);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  flex-shrink: 0;
}

.benefit-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--bg-white);
}

.benefit-item p {
  font-size: 0.86rem;
  color: var(--text-light-300);
}

/* ==========================================================================
   9. LLAMADO A LA ACCIÓN (CTA)
   ========================================================================== */
.cta-banner-section {
  background: linear-gradient(135deg, #0044b3 0%, #071936 100%);
  color: var(--bg-white);
  padding: 4rem 0;
  border-top: 3px solid var(--amber-500);
  border-bottom: 3px solid var(--amber-500);
}

.cta-banner-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--amber-400);
  margin-bottom: 0.5rem;
}

.cta-title {
  font-size: clamp(1.65rem, 2.6vw, 2.3rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.cta-text {
  font-size: 1.05rem;
  color: var(--text-light-100);
  max-width: 700px;
}

/* ==========================================================================
   10. CONTACTO
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 2rem;
  align-items: start;
}

.contact-info-card {
  background: var(--bg-dark-900);
  color: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2.1rem;
  box-shadow: var(--shadow-md);
}

.cic-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.cic-desc {
  font-size: 0.92rem;
  color: var(--text-light-300);
  margin-bottom: 1.6rem;
}

.cic-items {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  margin-bottom: 1.85rem;
}

.cic-item {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.cic-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(14, 165, 233, 0.14);
  color: var(--electric-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cic-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-light-400);
}

.cic-value {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--bg-white);
}

.cic-whatsapp-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.cic-whatsapp-box h4 {
  font-size: 0.98rem;
  margin-bottom: 0.35rem;
  color: var(--amber-400);
}

.cic-whatsapp-box p {
  font-size: 0.84rem;
  color: var(--text-light-300);
  margin-bottom: 1rem;
}

/* ==========================================================================
   11. PIE DE PÁGINA (FOOTER)
   ========================================================================== */
.site-footer {
  background-color: var(--bg-dark-950);
  color: var(--text-light-300);
  padding-top: 4rem;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.85fr 1fr 1.1fr;
  gap: 2.25rem;
  padding-bottom: 3rem;
}

.footer-logo {
  margin-bottom: 1rem;
}

.footer-slogan {
  font-weight: 700;
  color: var(--amber-400);
  font-size: 0.92rem;
  margin-bottom: 0.65rem;
}

.footer-seo-summary {
  font-size: 0.84rem;
  color: var(--text-light-400);
  margin-bottom: 1.25rem;
}

.footer-socials {
  display: flex;
  gap: 0.6rem;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-dark-800);
  border: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light-300);
}

.social-link:hover {
  background: var(--electric-600);
  color: var(--bg-white);
  border-color: var(--electric-500);
}

.footer-heading {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--bg-white);
  margin-bottom: 1rem;
}

.footer-links,
.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.875rem;
}

.footer-links a:hover,
.footer-contact-list a:hover {
  color: var(--electric-400);
}

.footer-contact-list strong {
  display: block;
  color: var(--bg-white);
  font-size: 0.8rem;
}

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding: 1.3rem 0;
  font-size: 0.84rem;
  color: var(--text-light-400);
  text-align: center;
}

/* ==========================================================================
   BOTÓN FLOTANTE DE WHATSAPP
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 95;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.42);
}

.whatsapp-float:hover {
  transform: scale(1.07);
  background: #1ebe5b;
}

.wa-pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25d366;
  animation: waPulse 2.2s infinite;
}

@keyframes waPulse {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.38);
    opacity: 0;
  }
}

.wa-tooltip {
  position: absolute;
  right: 70px;
  background: var(--bg-dark-900);
  color: var(--bg-white);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.whatsapp-float:hover .wa-tooltip {
  opacity: 1;
}

/* ==========================================================================
   MODALES DE ESPECIFICACIONES Y CONFIGURACIÓN
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(7, 12, 23, 0.78);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal-backdrop[hidden] {
  display: none !important;
}

.modal-dialog {
  background: var(--bg-dark-900);
  color: var(--bg-white);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-sm {
  max-width: 520px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border-dark);
}

.modal-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--amber-400);
  font-weight: 700;
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 800;
}

.modal-close {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--bg-white);
  width: 34px;
  height: 34px;
  border-radius: 6px;
  cursor: pointer;
}

.modal-body {
  padding: 1.6rem 1.75rem;
}

.modal-body .form-group label {
  color: var(--text-light-100);
}

.modal-helper-text {
  font-size: 0.88rem;
  color: var(--text-light-300);
  margin-bottom: 0.5rem;
}

.spec-modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.spec-modal-box {
  background: var(--bg-dark-800);
  border: 1px solid var(--border-dark);
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.spec-modal-box h4 {
  font-size: 0.88rem;
  color: var(--electric-400);
  margin-bottom: 0.45rem;
  text-transform: uppercase;
}

.spec-modal-box ul {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.86rem;
  color: var(--text-light-300);
}

.modal-footer,
.modal-footer-inline {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.2rem 1.75rem;
  border-top: 1px solid var(--border-dark);
}

.modal-footer-inline {
  padding: 1rem 0 0;
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLET Y CELULAR)
   ========================================================================== */
@media (max-width: 1100px) {
  .voltage-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid,
  .services-grid,
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-container,
  .specs-layout,
  .contact-layout,
  .direction-blocks-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .mobile-menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-dark-900);
    border-bottom: 1px solid var(--border-dark);
    padding: 1rem;
    display: none;
  }

  .main-nav.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-banner-card,
  .compliance-banner {
    flex-direction: column;
    text-align: center;
  }

  .form-row-2,
  .form-row-3,
  .spec-modal-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .voltage-cards-grid,
  .products-grid,
  .services-grid,
  .benefits-grid,
  .footer-grid,
  .hero-voltage-grid {
    grid-template-columns: 1fr;
  }

  .header-cta span {
    display: none;
  }

  .topbar-inner {
    justify-content: center;
    text-align: center;
  }
}