#intro {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #18124b  2%, #AA89D1 50%, #131034 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    overflow: hidden;
}

.logo-container {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-pulse {
    width: 150px;
    height: 150px;
    opacity: 0;
    position: relative;
    z-index: 2;
}

.pulse-glow {
    position: absolute;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgb(255, 255, 255) 40%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    filter: blur(20px);
    z-index: 1;
}

.intro-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(147, 185, 224, 0.1) 0%, transparent 50%);
    opacity: 0;
}

#mainContent {
    opacity: 0;
}

:root {
  --primary: #93B9E0;
  --lilac: #C4A2FC;
  --bg: #0A0A14;
  --text: #FFFFFF;
  --glass: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Montserrat', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  height: 100vh;
}

/* Audio Control */
.audio-control {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}

.audio-btn {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  color: var(--text);
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* Contenedor Principal Neuronal */
.neuron-main {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  perspective: 1000px;
}

#neuronCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Nodos de la Red Neuronal */
.neuron-node {
  position: absolute;
  top: var(--y);
  left: var(--x);
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 100;
  transition: var(--transition);
  filter: drop-shadow(0 0 10px rgba(147, 185, 224, 0.3));
  pointer-events: none;
}

.neuron-main:not(.zoomed) .neuron-node {
  pointer-events: auto;
}

.node-core {
  width: 60px;
  height: 60px;
  background: radial-gradient(circle, var(--primary) 0%, var(--lilac) 100%);
  border-radius: 50%;
  position: relative;
  transition: var(--transition);
  border: 2px solid transparent;
}

.node-core::before,
.node-core::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  opacity: 0;
  transition: var(--transition);
}

.node-core::before {
  width: 80px;
  height: 80px;
  border: 1px solid var(--lilac);
}

.node-core::after {
  width: 100px;
  height: 100px;
  border: 1px solid var(--primary);
}

.neuron-node:hover .node-core {
  transform: scale(1.2);
  border-color: var(--lilac);
}

.neuron-node:hover .node-core::before {
  opacity: 0.6;
  width: 100px;
  height: 100px;
}

.neuron-node:hover .node-core::after {
  opacity: 0.3;
  width: 120px;
  height: 120px;
}

.node-label {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--glass);
  backdrop-filter: blur(10px);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transition: var(--transition);
  border: 1px solid var(--glass-border);
}

.node-subtitle {
  position: absolute;
  top: calc(100% + 45px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  opacity: 0.7;
  white-space: nowrap;
  opacity: 0;
  transition: var(--transition);
}

.neuron-node:hover .node-label,
.neuron-node:hover .node-subtitle {
  opacity: 1;
  transform: translateX(-50%) translateY(10px);
}

/* Nodo Principal Centrado */
.main-node .node-core {
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, var(--lilac) 0%, var(--primary) 100%);
}

.main-node .node-label {
  font-size: 1.1rem;
  padding: 12px 24px;
}

/* Secciones de Contenido */
.content-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8) translateZ(-100px);
  transition: var(--transition);
  z-index: 50;
  pointer-events: none;
}

.content-section.active {
  opacity: 100;
  visibility: visible;
  transform: scale(1) translateZ(0);
  pointer-events: auto;
}

.section-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(10, 10, 20, 0.9) 0%, var(--bg) 70%);
  opacity: 100;
  transition: var(--transition);
}

.content-section.active .section-background {
  opacity: 100;
}

.content-wrapper {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 40px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Efectos de Zoom y Transición */
.neuron-main.zoomed .neuron-node {
  transform: translate(-50%, -50%) scale(0.95);
  pointer-events: none;
}

/* Atenuar solo los nodos que NO están seleccionados */
.neuron-node.dimmed {
  opacity: 0.25;
  transition: var(--transition);
  pointer-events: none; /* evita interacciones accidentales en nodos atenuados */
}

/* Nodo seleccionado: se fija en la esquina superior derecha y se hace más grande.
   Solo el nodo seleccionado recibe este estilo. */
.neuron-node.selected-node {
  position: fixed;
  top: 40px;
  right: 40px;
  left: auto !important;
  transform: translate(0, 0) scale(1.4) !important;
  z-index: 300;
  pointer-events: all;
}

/* Asegurar que las etiquetas del nodo seleccionado sean visibles */
.neuron-node.selected-node .node-label,
.neuron-node.selected-node .node-subtitle {
  opacity: 1;
  transform: translateX(-50%) translateY(10px);
}

/* Ocultar control de audio cuando un panel de nodo está abierto */
.audio-control.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px);
}

/* Asegurar transiciones suaves */
.neuron-node, .neuron-node .node-label, .neuron-node .node-subtitle {
  transition: var(--transition);
}

/* Botón de Regreso */
.back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 25px;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  border: none;
}

.back-btn.visible {
  opacity: 1;
  visibility: visible;
}

.back-btn:hover {
  background: var(--primary);
  transform: translateX(5px);
}

/* Estilos de Contenido Específico */
.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  padding: 12px 24px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
}

.btn.primary {
  background: var(--primary);
  color: var(--bg);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--glass-border);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* Hero Section */
.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--lilac) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  
}
/* Hero Section - Modificaciones específicas */
#hero-content .content-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start; /* Cambiado de center a flex-start */
  text-align: center;
  padding-top: 18vh; /* Añadido espacio en la parte superior */
  position: relative;
  z-index: 100;
}

.hero-text-container {
  position: relative;
  z-index: 105;
  text-align: center;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding-top: 60px; /* Espacio adicional para evitar el nodo */
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--lilac) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  line-height: 1.1;
  position: relative;
  z-index: 110;
  margin-top: 0;
}

.hero-subtitle {
  font-size: 1.5rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  font-weight: 300;
  text-align: center;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.4;
  position: relative;

  margin-top: 6rem; /* Espacio entre título y subtítulo */
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 0rem; /* Más espacio arriba de los botones */
  justify-content: center;
  position: relative;

}


/* En móviles, ajustar más el espaciado */
@media (max-width: 768px) {
  #hero-content .content-wrapper {
    padding-top: 15vh;
  }
  
  .hero-text-container {
    padding-top: 40px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
    margin-top: 1.5rem;
  }
  
  .hero-actions {
    margin-top: 2rem;
    flex-direction: column;
    align-items: center;
  }
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 3rem;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--lilac));
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  opacity: 0.5;
  transform: translateX(-20px);
  transition: var(--transition);
  cursor: pointer;
}

.timeline-item.active {
  opacity: 1;
  transform: translateX(0);
}

.timeline-marker {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  border: 3px solid var(--bg);
}

.timeline-item h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

/* Value Proposition */
.value-proposition {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 3rem 0;
  flex-wrap: wrap;
}

.value-pill {
  padding: 1rem 2rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
}

.value-pill:hover {
  background: var(--primary);
  color: var(--bg);
  transform: translateY(-2px);
}

/* Tech Grid */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.tech-item {
  padding: 2rem;
  background: var(--glass);
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.tech-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
}

/* Stories Grid */
.stories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.story-card {
  padding: 2.5rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.story-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
}

.story-role {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

.story-card blockquote {
  font-style: italic;
  font-size: 1.1rem;
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--lilac);
}

/* Heart Section */
.heart-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.heart-model-container {
  text-align: center;
}

.heart-3d {
  width: 300px;
  height: 300px;
  position: relative;
  margin: 0 auto;
  transform-style: preserve-3d;
  transition: transform 0.5s ease;
}

.heart-part {
  position: absolute;
  width: 80px;
  height: 80px;
  background: var(--primary);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  opacity: 0;
  transform: scale(0.8);
}

.heart-part:hover {
  border-color: var(--lilac);
  transform: scale(1.1);
}

.heart-part[data-part="camara-izquierda"] {
  top: 50px;
  left: 50px;
  background: #FF6B6B;
}

.heart-part[data-part="tejido-externo"] {
  top: 50px;
  right: 50px;
  background: #4ECDC4;
}

.heart-part[data-part="sistema-flujo"] {
  bottom: 50px;
  left: 50px;
  background: #45B7D1;
}

.heart-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.info-panel {
  padding: 2rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  display: none;
}

.info-panel.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.info-panel ul {
  margin-top: 1rem;
  padding-left: 1.5rem;
}

.info-panel li {
  margin-bottom: 0.5rem;
  position: relative;
}

.info-panel li::before {
  content: '▸';
  color: var(--primary);
  position: absolute;
  left: -1rem;
}

.model-controls {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.control-btn {
  padding: 10px 20px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text);
  border-radius: 25px;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Montserrat', sans-serif;
}

.control-btn:hover {
  background: var(--primary);
  color: var(--bg);
}

/* Scanner */
.scanner-container {
  text-align: center;
  margin-top: 2rem;
}

.body-outline {
  width: 200px;
  height: 400px;
  background: var(--glass);
  border-radius: 100px 100px 20px 20px;
  margin: 0 auto 2rem;
  position: relative;
  border: 2px solid var(--glass-border);
}

.organ-marker {
  position: absolute;
  width: 15px;
  height: 15px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}

.organ-marker[data-organ="heart"] {
  top: 30%;
  left: 50%;
  transform: translateX(-50%);
}

.organ-marker[data-organ="arm"] {
  top: 50%;
  left: 25%;
  transform: translateY(-50%);
}

.organ-marker[data-organ="leg"] {
  top: 70%;
  left: 50%;
  transform: translateX(-50%);
}

.organ-marker:hover {
  background: var(--lilac);
  transform: scale(1.5);
}

.scan-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: width 3s ease;
}

.scan-progress.scanning {
  opacity: 0.3;
  width: 100%;
}

.scanner-controls {
  margin-top: 2rem;
}

.scan-results {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--glass);
  border-radius: 15px;
  border: 1px solid var(--glass-border);
  display: none;
  text-align: left;
}

.scan-results.visible {
  display: block;
  animation: fadeIn 0.5s ease;
}

/* Glitch Effect */
.glitch-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, 
    rgba(147, 185, 224, 0.1) 0%, 
    rgba(196, 162, 252, 0.1) 50%, 
    rgba(147, 185, 224, 0.1) 100%);
  opacity: 0;
  pointer-events: none;
  z-index: 1000;
  transition: opacity 0.3s;
  mix-blend-mode: overlay;
}

.glitch-overlay.active {
  opacity: 1;
  animation: glitch 0.5s linear;
}

@keyframes glitch {
  0% { transform: translate(0); filter: hue-rotate(0deg); }
  20% { transform: translate(-2px, 2px); filter: hue-rotate(90deg); }
  40% { transform: translate(-2px, -2px); filter: hue-rotate(180deg); }
  60% { transform: translate(2px, 2px); filter: hue-rotate(270deg); }
  80% { transform: translate(2px, -2px); filter: hue-rotate(360deg); }
  100% { transform: translate(0); filter: hue-rotate(0deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heartbeat {
  0% { transform: scale(1); }
  25% { transform: scale(1.1); }
  50% { transform: scale(1); }
  75% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Responsive */
@media (max-width: 968px) {
  .heart-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .stories-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .neuron-node {
    transform: translate(-50%, -50%) scale(0.8);
  }
  
  .content-wrapper {
    padding: 80px 20px;
  }
  
  .value-proposition {
    flex-direction: column;
    align-items: center;
  }
  
  .value-pill {
    width: 100%;
    text-align: center;
  }
  
  .timeline::before {
    left: 15px;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }
}