/* ============================================
   CERO1 - Sistema de Diseño
   Dark Mode | Green Tech Aesthetic
   ============================================ */

/* ============================================
   Variables CSS
   ============================================ */
:root {
  /* Colores principales */
  --dark-teal: #0a1f1f;
  --dark-gray: #1a1a1a;
  --lime-green: #a4d65e;
  --accent-teal: #2cc27a;

  /* Neutros */
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e0e0e0;
  --gray-300: #b0b0b0;
  --gray-800: #2a2a2a;
  --black: #0a0a0a;

  /* Tipografía */
  --font-heading: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Espaciado */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-xxl: 8rem;

  /* Bordes */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Transiciones */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================
   Reset y Base
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--dark-gray);
  color: var(--gray-100);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  zoom: 0.9;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ============================================
   Tipografía
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.7;
  color: var(--gray-200);
}

.text-large {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.6;
}

.text-small {
  font-size: 0.875rem;
  color: var(--gray-300);
}

.text-highlight {
  color: var(--lime-green);
  font-weight: 600;
}

.text-italic {
  font-style: italic;
  color: var(--lime-green);
}

/* ============================================
   Header / Navegación
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 31, 31, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(164, 213, 94, 0.1);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  height: 40px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--gray-200);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a:hover {
  color: var(--lime-green);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--lime-green);
  transition: var(--transition-fast);
}

.nav-links a:hover::after {
  width: 100%;
}

.lang-selector {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
}

.lang-btn {
  padding: 0.25rem 0.75rem;
  color: var(--gray-300);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 4px;
  transition: var(--transition-fast);
}

.lang-btn:hover {
  color: var(--lime-green);
}

.lang-btn.active {
  background: var(--lime-green);
  color: var(--dark-teal);
}

.btn-cta-header {
  padding: 0.75rem 1.5rem;
  background: var(--lime-green);
  color: var(--dark-teal);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-cta-header:hover {
  background: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(164, 213, 94, 0.3);
}

/* Menú móvil */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 0.5rem;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--lime-green);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ============================================
   Contenedor y Layout
   ============================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: var(--space-xxl) 0;
  position: relative;
}

.section-dark-teal {
  background: var(--dark-teal);
}

.section-dark-gray {
  background: var(--dark-gray);
}

/* Sección problema con fondo de imagen */
#problema {
  position: relative;
  background-image: url('../Imagenes/burocracia.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#problema::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(30, 10, 10, 0.95);
  z-index: 1;
}

/* Sección formulario de contacto con fondo de imagen */
#contacto-form {
  position: relative;
  background-image: url('../Imagenes/future.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#contacto-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(10, 31, 31, 0.95) 0%, rgba(10, 31, 31, 0.75) 50%, rgba(10, 31, 31, 0.85) 100%);
  z-index: 1;
}

/* Contacto: reducir espaciado */
.contacto-header {
  padding-top: calc(var(--space-xxl) * 0.7);
  padding-bottom: 0.7rem;
}

.contacto-header .section-header {
  margin-bottom: 0;
}

#contacto-form {
  padding-top: 3rem;
}

#contacto-form .container {
  position: relative;
  z-index: 2;
}

#problema .container {
  position: relative;
  z-index: 2;
}

/* Sección ecosistema con fondo de imagen */
#ecosistema {
  position: relative;
  background-image: url('../Imagenes/LATAM.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#ecosistema::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 15, 30, 0.8);
  z-index: 1;
}

#ecosistema .container {
  position: relative;
  z-index: 2;
}

/* Colores azules para sección ecosistema GDI */
#ecosistema .area-title {
  color: var(--white);
}

#ecosistema .area-item {
  border-color: rgba(26, 25, 168, 0.3);
}

#ecosistema .area-item:hover {
  border-color: #1A19A8;
  box-shadow: 0 8px 30px rgba(26, 25, 168, 0.3);
}

#ecosistema .quote-block {
  color: var(--white);
  border-left: 4px solid #1A19A8;
}

/* Botón CONOCER GDI en azul */
#ecosistema .btn-secondary {
  background: #1A19A8;
  color: var(--white);
  border: 2px solid #1A19A8;
}

#ecosistema .btn-secondary:hover {
  background: #2828D8;
  color: var(--white);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(26, 25, 168, 0.5);
}

/* Sección casos de uso con fondo de imagen */
#casos {
  position: relative;
  background-image: url('../Imagenes/revolucionar.PNG');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#casos::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 35, 20, 0.9);
  z-index: 1;
}

#casos .container {
  position: relative;
  z-index: 2;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 120px;
  padding-bottom: 80px;
  background-image: url('../Imagenes/change.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 31, 31, 0.75);
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1000px;
}

.hero-image {
  max-width: 400px;
  margin: 0 auto var(--space-lg);
  opacity: 0.9;
}

.hero h1 {
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  margin-bottom: var(--space-lg);
  color: var(--gray-200);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.03);
  border: 2px solid rgba(164, 213, 94, 0.2);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}

.metric-label {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gray-300);
}

.metric-arrow {
  font-size: 2rem;
  color: var(--lime-green);
}

.metric-value {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--lime-green);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

/* ============================================
   Botones / CTAs
   ============================================ */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
}

.btn-primary {
  background: var(--lime-green);
  color: var(--dark-teal);
}

.btn-primary:hover {
  background: var(--white);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(164, 213, 94, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--lime-green);
  border: 2px solid var(--lime-green);
}

.btn-secondary:hover {
  background: var(--lime-green);
  color: var(--dark-teal);
}

.btn-large {
  padding: 1.25rem 3rem;
  font-size: 1.125rem;
}

.btn-demo {
  background: var(--lime-green);
  color: var(--dark-teal);
  padding: 1.5rem 4rem;
  font-size: 1.5rem;
  font-weight: 900;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 25px rgba(164, 213, 94, 0.4);
  transition: var(--transition-fast);
}

.btn-demo:hover {
  background: var(--white);
  transform: translateY(-6px) scale(1.05);
  box-shadow: 0 16px 40px rgba(164, 213, 94, 0.6);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-icon::after {
  content: '→';
  font-size: 1.5rem;
  transition: var(--transition-fast);
}

.btn-icon:hover::after {
  transform: translateX(4px);
}

/* ============================================
   Grid / Cards
   ============================================ */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--gray-800);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(164, 213, 94, 0.1);
  transition: var(--transition-normal);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--lime-green);
  box-shadow: 0 12px 40px rgba(164, 213, 94, 0.2);
}

.card-header {
  margin-bottom: var(--space-sm);
}

.card-title {
  color: var(--lime-green);
  margin-bottom: var(--space-xs);
}

.card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1.375rem;
}

.card-list li::before {
  content: '✓';
  color: var(--lime-green);
  font-weight: 700;
  flex-shrink: 0;
}

.card-list li.negative::before {
  content: '❌';
}

/* ============================================
   Secciones específicas
   ============================================ */

/* Problema - Laberinto */
.problema-visual {
  max-width: 900px;
  margin: var(--space-lg) auto;
  padding: var(--space-md);
  background: var(--gray-800);
  border-radius: var(--radius-lg);
  border: 2px solid rgba(255, 100, 100, 0.3);
}

.problema-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.problema-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  border-left: 3px solid #ff6b6b;
}

.problema-icon {
  font-size: 1.5rem;
}

.problema-text h4 {
  color: #ff6b6b;
  margin-bottom: 0.5rem;
  font-size: 1.375rem;
}

.problema-text p {
  font-size: 1.125rem;
}

.closing-statement {
  text-align: center;
  font-size: 1.5rem;
  font-style: italic;
  color: var(--lime-green);
  margin-top: var(--space-lg);
}

/* Solución */
.solucion-visual {
  max-width: 1400px;
  margin: var(--space-lg) auto;
}

.solucion-visual img {
  width: 100%;
  height: auto;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: var(--space-md) 0;
}

.feature-item {
  padding: 1rem;
  background: rgba(164, 213, 94, 0.1);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--lime-green);
  font-weight: 600;
  color: var(--white);
  text-align: center;
}

/* IA Intro */
/* Sección IA con fondo de imagen - Home */
#ia {
  position: relative;
  background-image: url('../Imagenes/IA.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#ia::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 20, 0.85);
  z-index: 1;
}

#ia .container {
  position: relative;
  z-index: 2;
}

/* Sección IA con fondo de imagen - Página IA */
#ia-intro {
  position: relative;
  background-image: url('../Imagenes/IA.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#ia-intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 20, 0.85);
  z-index: 1;
}

#ia-intro .container {
  position: relative;
  z-index: 2;
}

.ia-intro {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.ia-intro-text {
  margin: var(--space-lg) 0;
  line-height: 1.8;
}

/* Casos de uso - Before/After */
.casos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.caso-card {
  background: var(--gray-800);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(164, 213, 94, 0.1);
}

.caso-header {
  text-align: center;
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid rgba(164, 213, 94, 0.2);
  margin-bottom: var(--space-md);
}

.caso-before, .caso-after {
  margin-bottom: var(--space-sm);
}

.caso-before h4 {
  color: #ff6b6b;
  margin-bottom: 1rem;
}

.caso-after h4 {
  color: var(--lime-green);
  margin-bottom: 1rem;
}

/* Tarjeta única de casos con 2 columnas */
.caso-card-single {
  background: var(--gray-800);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(164, 213, 94, 0.1);
  max-width: 1200px;
  margin: var(--space-lg) auto;
}

.caso-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-md);
}

.caso-column {
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
  .caso-columns {
    grid-template-columns: 1fr;
  }
}

/* Planes preview */
.planes-preview {
  background: var(--gray-800);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 800px;
  margin: var(--space-md) auto;
}

.planes-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin: var(--space-md) 0;
  text-align: left;
}

.plan-preview-item {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--lime-green);
}

.plan-preview-item h4 {
  color: var(--lime-green);
  margin-bottom: 0.5rem;
}

/* Ecosistema GDI */
.ecosistema-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.ecosistema-areas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.area-item {
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(164, 213, 94, 0.2);
  transition: var(--transition-normal);
}

.area-item:hover {
  transform: scale(1.05);
  border-color: var(--lime-green);
  box-shadow: 0 8px 30px rgba(164, 213, 94, 0.2);
}

.area-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.area-title {
  color: var(--lime-green);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.quote-block {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  font-style: italic;
  color: var(--lime-green);
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: rgba(164, 213, 94, 0.05);
  border-left: 4px solid var(--lime-green);
  border-radius: var(--radius-sm);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--dark-teal);
  padding: var(--space-xl) 0 var(--space-md);
  border-top: 1px solid rgba(164, 213, 94, 0.1);
}

.footer-cta {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(164, 213, 94, 0.1);
}

.footer-cta h2 {
  margin-bottom: var(--space-sm);
}

.footer-cta p {
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-section h4 {
  color: var(--lime-green);
  margin-bottom: var(--space-sm);
}

.footer-section p,
.footer-section a {
  color: var(--gray-300);
  margin-bottom: 0.5rem;
  display: block;
}

.footer-section a:hover {
  color: var(--lime-green);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(164, 213, 94, 0.1);
  color: var(--gray-300);
  font-size: 0.875rem;
}

.footer-logo {
  height: 50px;
  margin-bottom: var(--space-sm);
}

/* ============================================
   Página IA Detallada
   ============================================ */
.ia-page {
  padding-top: 100px;
}

.ia-page .section {
  padding: var(--space-lg) 0;
}

.ia-section {
  margin-bottom: var(--space-md);
}

.ia-section-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.ia-section-image {
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(164, 213, 94, 0.2);
}

.ia-section:nth-child(even) .ia-section-content {
  grid-template-columns: 1fr 1fr;
}

.ia-section:nth-child(even) .ia-section-image {
  order: -1;
}

/* ============================================
   Página Planes Detallada
   ============================================ */
.planes-page {
  padding-top: 100px;
}

.planes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.plan-card {
  background: var(--gray-800);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 2px solid rgba(164, 213, 94, 0.2);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

.plan-card:hover {
  transform: translateY(-8px);
  border-color: var(--lime-green);
  box-shadow: 0 16px 50px rgba(164, 213, 94, 0.3);
}

.plan-card.featured {
  border-color: var(--lime-green);
  background: linear-gradient(135deg, var(--gray-800) 0%, rgba(164, 213, 94, 0.1) 100%);
}

.plan-header {
  text-align: center;
  padding-bottom: var(--space-md);
  border-bottom: 2px solid rgba(164, 213, 94, 0.2);
  margin-bottom: var(--space-md);
}

.plan-name {
  font-size: 2rem;
  color: var(--lime-green);
  margin-bottom: 0.5rem;
}

.plan-volume {
  font-size: 1.125rem;
  color: var(--gray-200);
}

.plan-ideal {
  margin-bottom: var(--space-md);
}

.plan-ideal h4 {
  color: var(--lime-green);
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.plan-includes {
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

.plan-includes h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.plan-cta {
  margin-top: auto;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 5rem;
    --space-xxl: 6rem;
  }

  .ia-section-content {
    grid-template-columns: 1fr;
  }

  .ia-section:nth-child(even) .ia-section-image {
    order: 0;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-links.mobile-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(10, 31, 31, 0.98);
    padding: 2rem;
    border-top: 1px solid rgba(164, 213, 94, 0.2);
  }

  .container {
    padding: 0 1rem;
  }

  .section {
    padding: var(--space-lg) 0;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 90vh;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 3.5rem;
    --space-xxl: 4rem;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .hero-metric {
    padding: var(--space-sm);
  }
}

/* ============================================
   Formulario de Contacto
   ============================================ */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

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

.form-group label {
  font-weight: 600;
  color: var(--lime-green);
  font-size: 1rem;
}

.form-group input,
.form-group textarea {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(164, 213, 94, 0.2);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--lime-green);
  background: rgba(255, 255, 255, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-300);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

/* ============================================
   Animaciones y efectos
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(164, 213, 94, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(164, 213, 94, 0.6);
  }
}

.glow {
  animation: glow 2s ease-in-out infinite;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.6s ease;
}

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