/* ==========================================================================
   LANDING SOLAR - ECO-GREEN LIGHT DESIGN SYSTEM
   Luminous, Clean, Eco-Friendly & High-Contrast (Inspired by EcoApo / Green Tech)
   ========================================================================== */

:root {
  /* Color Palette - Eco Green Light Theme */
  --bg-body: #F8FAFC;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-hover: #FFFFFF;
  --bg-section-alt: #F1F5F9;
  
  --border-glass: rgba(15, 23, 42, 0.09);
  --border-glass-green: rgba(72, 167, 55, 0.35);
  --border-glass-gold: rgba(217, 119, 6, 0.3);
  
  /* Eco-Green Primary Palette */
  --primary-green: #48A737;
  --primary-green-hover: #39882B;
  --primary-green-light: #EBF7E8;
  --green-glow: rgba(72, 167, 55, 0.22);
  
  /* Gold / Sun Secondary Accent */
  --primary-gold: #D97706;
  --primary-gold-hover: #B45309;
  --gold-glow: rgba(217, 119, 6, 0.2);
  
  /* Typography Colors */
  --text-main: #0F172A;     /* Deep Slate / Charcoal */
  --text-muted: #475569;    /* Muted Slate Gray */
  --text-light: #FFFFFF;
  
  /* Typography & Layout */
  --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 0 1px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 45px -15px rgba(72, 167, 55, 0.22), 0 4px 20px rgba(0, 0, 0, 0.06);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base Styles */






/* Typography Utilities */


.gradient-text-green {
  background: linear-gradient(135deg, #48A737 0%, #2E7D32 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-gold {
  background: linear-gradient(135deg, #D97706 0%, #B45309 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Animated Mesh Gradient Background (Light Eco Version) */
.mesh-gradient-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 15% 15%, rgba(72, 167, 55, 0.12) 0%, transparent 45%),
              radial-gradient(circle at 85% 50%, rgba(56, 189, 248, 0.1) 0%, transparent 45%),
              radial-gradient(circle at 50% 85%, rgba(245, 158, 11, 0.08) 0%, transparent 50%);
  filter: blur(60px);
  z-index: 0;
  pointer-events: none;
  animation: meshFloat 18s ease-in-out infinite alternate;
}

@keyframes meshFloat {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.08) translate(-2%, 2%); }
  100% { transform: scale(1.04) translate(2%, -2%); }
}

/* Glassmorphism Card Effect (Light Theme) */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glass-green);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}



/* Floating WhatsApp Button */
@keyframes pulse-whatsapp {
  0% { transform: scale(1); box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.45); }
  50% { transform: scale(1.06); box-shadow: 0 15px 30px -5px rgba(37, 211, 102, 0.65); }
  100% { transform: scale(1); box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.45); }
}

.btn-whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 99;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: #25D366;
  color: #FFF;
  padding: 0.85rem 1.3rem;
  border-radius: var(--radius-full);
  font-weight: 800;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.45);
  transition: all var(--transition-normal);
  animation: pulse-whatsapp 2.5s infinite ease-in-out;
}

.btn-whatsapp-float:hover {
  animation-play-state: paused;
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(37, 211, 102, 0.65);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, var(--primary-green) 0%, #358A28 100%);
  color: #FFF;
  padding: 0.95rem 1.6rem;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 25px -5px var(--green-glow);
  transition: all var(--transition-normal);
  text-align: center;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px -5px rgba(72, 167, 55, 0.45);
  background: linear-gradient(135deg, #53BC40 0%, #358A28 100%);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: #FFFFFF;
  color: var(--text-main);
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid rgba(15, 23, 42, 0.15);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: all var(--transition-normal);
}

.btn-secondary:hover {
  background: var(--primary-green-light);
  border-color: var(--primary-green);
  color: var(--primary-green);
}

/* HERO SECTION (Video Background & High Contrast) */
.hero-section { position: relative; min-height: 65vh; height: auto; padding: 8rem 0 4rem 0; display: flex; align-items: center; overflow: hidden; background-color: #0F172A; }

.hero-bg-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.95) contrast(1.05);
  transform: scale(1.15) translate(4%, 4%); /* Aumenta tamaño y empuja el logo fuera de la pantalla abajo a la derecha */
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, 
              rgba(15, 23, 42, 0.75) 0%, 
              rgba(15, 23, 42, 0.55) 60%, 
              rgba(248, 250, 252, 1) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  background: rgba(72, 167, 55, 0.2);
  border: 1px solid rgba(72, 167, 55, 0.4);
  color: #48A737;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-title {
  font-size: 2.35rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  color: #FFFFFF;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #E2E8F0;
  font-weight: 500;
  margin-bottom: 2rem;
  max-width: 680px;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.4);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}



.stat-box {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border-glass-green);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
}

.stat-box .number {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--primary-green);
}

.stat-box .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* SECTION TITLES */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-header .tag {
  color: var(--primary-green);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.section-header .title {
  font-size: 2rem;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.section-header .description {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* 4 PILARES SECTION (VALUE PROPOSITION) */
.pillars-section {
  padding: 5rem 0;
  position: relative;
  background: var(--bg-body);
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.pillar-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
}

.pillar-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--primary-green-light);
  border: 1px solid rgba(72, 167, 55, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-green);
}

.pillar-icon-wrapper span {
  font-size: 1.75rem;
}

.pillar-card.gold-theme .pillar-icon-wrapper {
  background: rgba(217, 119, 6, 0.1);
  border-color: rgba(217, 119, 6, 0.3);
  color: var(--primary-gold);
}

.pillar-card .pillar-title {
  font-size: 1.35rem;
  color: var(--text-main);
}

.pillar-card .pillar-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.pillar-highlight {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-green);
  margin-top: auto;
}

/* CALCULATOR / ROI SIMULATOR SECTION */
.calculator-section {
  padding: 5rem 0;
  position: relative;
  background: var(--bg-section-alt);
}

.calc-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.calc-input-box {
  padding: 2.25rem;
  background: #FFFFFF;
}

.calc-slider-group {
  margin: 2rem 0;
}

.calc-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.calc-slider-label span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.calc-bill-value {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--primary-green);
}

.range-slider {
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: #E2E8F0;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-green);
  cursor: pointer;
  box-shadow: 0 0 15px var(--green-glow);
  border: 3px solid #FFF;
}

.calc-results-box {
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: linear-gradient(135deg, #FFFFFF 0%, var(--primary-green-light) 100%);
  border: 1px solid rgba(72, 167, 55, 0.3);
}

.result-stat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-b: 1px solid rgba(15, 23, 42, 0.08);
}

.result-stat-item:last-child {
  border-b: none;
  padding-bottom: 0;
}

.result-stat-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.result-stat-val {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
}

.result-stat-val.accent {
  color: var(--primary-green);
}

/* Interactive ROI Chart Mockup */
.chart-container {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-t: 1px solid rgba(15, 23, 42, 0.08);
}

.chart-header {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 140px;
  gap: 0.75rem;
  padding-top: 1rem;
}

.bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  height: 100%;
  justify-content: flex-end;
}

.bar-fill-wrapper {
  width: 100%;
  height: 100px;
  display: flex;
  align-items: flex-end;
  background: #E2E8F0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.bar-fill {
  width: 100%;
  background: linear-gradient(180deg, var(--primary-green) 0%, #358A28 100%);
  border-radius: var(--radius-sm);
  transition: height 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.bar-fill:hover {
  background: linear-gradient(180deg, #53BC40 0%, var(--primary-green) 100%);
  box-shadow: 0 0 15px var(--green-glow);
}

.bar-fill.cost-grid {
  background: linear-gradient(180deg, #EF4444 0%, #DC2626 100%);
}

.bar-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-muted);
}

/* COMPARISON SECTION (GRID VS SOLAR) */
.comparison-section {
  padding: 5rem 0;
  background: var(--bg-body);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.comp-card {
  padding: 2.25rem;
}

.comp-card.solar {
  border-color: rgba(72, 167, 55, 0.35);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--primary-green-light) 100%);
  box-shadow: var(--shadow-hover);
}

.comp-card.grid-power {
  border-color: rgba(239, 68, 68, 0.2);
  background: #FFFFFF;
}

.comp-card-badge {
  display: inline-block;
  background: rgba(72, 167, 55, 0.15);
  color: var(--primary-green);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  border: 1px solid rgba(72, 167, 55, 0.3);
}

.comp-card-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  margin-bottom: 1.5rem;
}

.comp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.comp-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.comp-item strong {
  color: var(--text-main);
}

.comp-item .icon {
  font-size: 1.35rem;
  margin-top: 0.05rem;
}

.comp-item.positive .icon { color: var(--primary-green); }
.comp-item.negative .icon { color: #EF4444; }

/* STRATEGIC ALLIANCE SECTION (SOLPER + IGG) */
.alliance-section {
  padding: 5rem 0;
  background: var(--bg-body);
  position: relative;
}

.alliance-hero-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass-green);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
}

.alliance-hero-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-green), #004dcc);
}

.alliance-logos-row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid #E2E8F0;
}

.alliance-logo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  text-align: center;
  min-width: 220px;
}

.alliance-logo-img-box {
  height: 80px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alliance-logo-card img.igg-logo-img {
  max-height: 68px;
  max-width: 220px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.04));
  transition: transform 0.3s ease;
}

.alliance-logo-card img.solper-logo-img {
  max-height: 62px;
  max-width: 62px;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

.alliance-logo-card img:hover {
  transform: scale(1.04);
}

.alliance-logo-role {
  margin-top: 1rem;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-main);
  white-space: nowrap;
}

.alliance-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  margin-bottom: 2rem;
}

.alliance-connector-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(72, 167, 55, 0.08);
  color: var(--primary-green);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(72, 167, 55, 0.25);
  box-shadow: 0 2px 8px rgba(72, 167, 55, 0.06);
}

.alliance-connector-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(72, 167, 55, 0.1);
  color: var(--primary-green);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(72, 167, 55, 0.25);
}

.alliance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.alliance-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid #E2E8F0;
  padding: 2rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.alliance-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 25px rgba(72, 167, 55, 0.1);
  border-color: rgba(72, 167, 55, 0.4);
}

.alliance-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(72, 167, 55, 0.1);
  color: var(--primary-green);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.alliance-card-icon .material-symbols-outlined {
  font-size: 1.75rem;
}

.alliance-card h4 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.alliance-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ESTHETICS & ARCHITECTURE SECTION */
.architecture-section {
  padding: 5rem 0;
  position: relative;
  background: var(--bg-section-alt);
}

.arch-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.arch-img-gallery {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-glass-green);
}

/* Carousel Base */
.arch-carousel {
  position: relative;
  width: 100%;
  height: 360px;
  overflow: hidden;
  touch-action: pan-y;
}

.carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease-in-out;
}

.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  cursor: zoom-in;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  /* Proteccion anti-descarga */
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

/* Carousel Controls */
.carousel-controls {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  transform: translateY(-50%);
  padding: 0 1rem;
  pointer-events: none;
  z-index: 10;
}

.carousel-btn {
  position: static;
  transform: none;
  background: rgba(15, 23, 42, 0.6);
  color: white;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.3s ease;
}

.carousel-btn:hover {
  background: var(--primary-green);
  transform: scale(1.1);
}

/* Indicators */
.carousel-indicators {
  position: absolute;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s ease;
}

.indicator.active {
  background: var(--primary-green);
  transform: scale(1.2);
}

/* Lightbox Overlay */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.95);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(5px);
}

.lightbox-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.3s ease;
  /* Proteccion anti-descarga */
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.lightbox-content img.loaded {
  opacity: 1;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  padding: 0;
}

.lightbox-loader {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--primary-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: none;
}

.lightbox-loader.active {
  display: block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.arch-badge {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-main);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  pointer-events: none; /* Para no interferir con clicks en el carrusel */
}

/* CONTACT & FORM SECTION */
.contact-section {
  padding: 5rem 0;
  position: relative;
  background: var(--bg-body);
  id: contacto;
}

/* CONTACT SPLIT GRID */
.contact-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: stretch; /* Cambio: stretch para igualar alturas */
}

.contact-info-col {
  padding-right: 2rem;
}

.direct-contact-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.direct-contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem;
  background: rgba(15, 23, 42, 0.03);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
  text-decoration: none;
  color: var(--text-main);
}

.direct-contact-card:hover {
  background: rgba(15, 23, 42, 0.06);
  border-color: rgba(15, 23, 42, 0.15);
  transform: translateY(-2px);
}

.direct-contact-card .icon {
  font-size: 2rem;
  background: var(--primary-green-light);
  padding: 0.75rem;
  border-radius: 50%;
  color: var(--primary-green);
}

.direct-contact-card .text-group {
  display: flex;
  flex-direction: column;
}

.direct-contact-card .label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.direct-contact-card .value {
  font-size: 1.1rem;
  font-weight: 800;
}

@media (max-width: 992px) {
  .contact-split-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .contact-info-col {
    padding-right: 0;
  }
}

.form-card {
  padding: 2.5rem;
  background: #FFFFFF;
  border: 1px solid var(--border-glass-green);
  box-shadow: 0 20px 50px -15px rgba(72, 167, 55, 0.15);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center; /* Centra el contenido verticalmente si sobra espacio */
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-main);
}



.form-control:focus {
  border-color: var(--primary-green);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px var(--primary-green-light);
}

.form-control::placeholder {
  color: #94A3B8;
}

/* SCROLL REVEAL ANIMATIONS */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* RESPONSIVE BREAKPOINTS */
@media (min-width: 768px) {
  .hero-title {
    font-size: 3.35rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .hero-actions {
    flex-direction: row;
  }
  
  .section-header .title {
    font-size: 2.35rem;
  }
  
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .calc-wrapper {
    grid-template-columns: 1fr 1fr;
  }
  
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .arch-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-container {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
  
  .footer-links {
    flex-direction: row;
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.85rem;
  }
  
  .pillars-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* FLOWCHART DIAGRAM STYLES */
.how-it-works-section {
  padding: 5rem 0;
  background: var(--bg-section-alt);
  position: relative;
}

.flow-diagram-container {
  padding: 2rem;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass-green);
  box-shadow: 0 15px 40px -10px rgba(15, 23, 42, 0.06);
}

.diagram-top-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary-green-light);
  color: var(--primary-green);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border-glass-green);
}

.diagram-flow-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 900px) {
  .diagram-flow-grid {
    display: grid;
    grid-template-columns: 1fr 140px 1fr;
    align-items: center;
    gap: 1.5rem;
  }
}

.flow-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* FLOW NODE (Diagram Element) */
.flow-node {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  transition: all var(--transition-normal);
}

.flow-node:hover {
  transform: translateY(-2px);
  border-color: var(--primary-green);
  box-shadow: var(--shadow-hover);
}

.node-primary {
  border-color: var(--border-glass-green);
  background: #FFFFFF;
}

.node-optional {
  border-style: dashed;
  border-color: var(--primary-gold);
  background: rgba(254, 243, 199, 0.25);
}

.node-badge {
  position: absolute;
  top: -10px;
  left: 1rem;
  width: 24px;
  height: 24px;
  background: var(--primary-green);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px var(--green-glow);
}

.badge-optional {
  background: var(--primary-gold);
  width: auto;
  padding: 0 0.5rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 6px var(--gold-glow);
}

.node-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-green-light);
  color: var(--primary-green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.node-icon .material-symbols-outlined {
  font-size: 1.6rem;
}

.icon-optional {
  background: #FEF3C7;
  color: var(--primary-gold);
}

.node-content h4 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

.node-content p {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ARROW CONNECTORS */
.flow-arrow-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.25rem 0;
}

.arrow-line {
  width: 2px;
  height: 20px;
  background: var(--primary-green);
}

.arrow-line.dashed {
  background: transparent;
  border-left: 2px dashed var(--primary-gold);
}

.arrow-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-body);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-top: 0.25rem;
  border: 1px solid var(--border-glass);
}

.optional-flow .arrow-label {
  color: var(--primary-gold);
  border-color: rgba(217, 119, 6, 0.3);
}

/* CENTER DIVIDER (AC TRANSFER) */
.flow-center-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 0;
}

.ac-transfer-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  background: linear-gradient(135deg, var(--primary-green) 0%, #358A28 100%);
  color: #FFFFFF;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 800;
  box-shadow: 0 4px 15px var(--green-glow);
  text-align: center;
}

.ac-transfer-badge .material-symbols-outlined {
  font-size: 1.5rem;
}

/* BOTTOM INTEGRATION ROW (Grupo Electrógeno) */
.flow-bottom-integration {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--border-glass-green);
}

.node-integration {
  background: var(--primary-green-light);
  border: 1px solid var(--border-glass-green);
}

.badge-sync {
  background: #0F172A;
  color: #FFF;
}

.icon-integration {
  background: #0F172A;
  color: #FFF;
}

/* 25-YEAR ROI CHART STYLES */
.roi-chart-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  height: 200px;
  margin-top: 1rem;
  padding-bottom: 0.5rem;
  border-left: 1px solid var(--border-glass-green);
  position: relative;
}

.y-axis-label {
  position: absolute;
  top: -15px;
  left: -20px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-green);
}

.roi-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  width: 100%;
  height: 100%;
  padding: 0 0.25rem;
  gap: 2px;
  position: relative;
}

.zero-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--border-glass-green);
  z-index: 0;
  transition: bottom 0.5s ease;
}

.roi-bar-group {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  flex: 1;
  height: 100%;
  position: relative;
  z-index: 1;
}

.roi-bar {
  width: 100%;
  position: absolute;
  left: 0;
  min-height: 2px;
  transition: height 0.5s ease, bottom 0.5s ease, top 0.5s ease;
}

.roi-bar.positive {
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, var(--primary-green) 0%, rgba(72, 167, 55, 0.4) 100%);
}

.roi-bar.negative {
  border-radius: 0 0 2px 2px;
  background: linear-gradient(0deg, #EF4444 0%, rgba(239, 68, 68, 0.4) 100%);
}

.roi-bar-label {
  position: absolute;
  bottom: -20px;
  font-size: 0.6rem;
  color: var(--text-muted);
}

.x-axis-label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

/* BRANDS MARQUEE */
.brands-marquee-section {
  padding: 4rem 0;
  background: var(--bg-section-alt);
  border-top: 1px solid rgba(15, 23, 42, 0.05);
  overflow: hidden;
}

.marquee-container {
  width: 100%;
  overflow: hidden;
  position: relative;
  display: flex;
}

.marquee-container::before,
.marquee-container::after {
  content: '';
  position: absolute;
  top: 0;
  width: 15%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}
.marquee-container::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-section-alt), transparent);
}
.marquee-container::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-section-alt), transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: scrollMarquee 28s linear infinite;
  will-change: transform;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.marquee-group {
  display: flex;
  align-items: center;
  gap: 4rem;
  padding-right: 4rem;
  flex-shrink: 0;
}

.brand-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
}

.brand-logo img {
  max-height: 48px;
  max-width: 160px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.6);
  transition: filter 0.4s ease, transform 0.4s ease;
  cursor: pointer;
}

.brand-logo img:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
}

@keyframes scrollMarquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Ocultar etiquetas intermedias en móvil para que no se superpongan */
@media (max-width: 768px) {
  .roi-bar-label.hide-mobile {
    display: none;
  }
  
  .result-stat-item {
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
  }

  .btn-whatsapp-float span {
    display: none;
  }
  
  .btn-whatsapp-float {
    padding: 0;
    width: 55px;
    height: 55px;
    justify-content: center;
    border-radius: 50%;
  }

  .alliance-logos-row {
    flex-direction: column;
    gap: 1.75rem;
    align-items: center;
  }

  .alliance-connector {
    margin-bottom: 0;
  }

  .alliance-logo-role {
    white-space: normal;
  }
}

/* ==========================================================================
   SEO & AIO OPTIMIZATIONS
   ========================================================================== */

/* SEO Kicker (Volanta del H1) */
.seo-kicker {
  display: block;
  font-size: 0.35em;
  color: var(--primary-gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

/* FAQ SECTION (AIO) */
.faq-section {
  padding: 5rem 0;
  background: var(--bg-body);
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.faq-item[open] {
  border-color: var(--primary-green);
  box-shadow: 0 10px 25px -5px rgba(72, 167, 55, 0.1);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  list-style: none; /* Oculta la flecha nativa */
}

/* Ocultar flecha en webkit */
.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  color: var(--primary-green);
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

details.faq-item .faq-answer,
.faq-accordion .faq-answer {
  max-height: none !important;
  overflow: visible !important;
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

details.faq-item:not([open]) .faq-answer {
  display: none !important;
}


.btn-whatsapp-float { display: none !important; }
.header { display: none !important; }
.mobile-menu-overlay { display: none !important; }