/* TechnicalGroup - Landing Page Optimizada */
:root {
  /* Colores Institucionales */
  --color-primary: #000000;
  --color-background: #ffffff;
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  --color-success: #22c55e;
  --color-error: #ef4444;
  
  /* Sistema de diseño */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;
  
  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Bordes y sombras */
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  
  /* Transiciones */
  --transition-fast: 150ms ease-out;
  --transition-base: 220ms ease-out;
}

/* Reset y base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-gray-600);
}

button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}

ul {
  list-style: none;
}

/* Utilidades */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container { padding: 0 var(--space-6); }
}

@media (min-width: 1024px) {
  .container { padding: 0 var(--space-8); }
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-gray-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid var(--color-gray-200);
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

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

.btn-primary:hover {
  background-color: var(--color-gray-800);
  border-color: var(--color-gray-800);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-full {
  width: 100%;
}

/* Navegación */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-200);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .nav-container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .nav-container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo-container {
  width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1);
}

.logo {
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
}

.brand-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.nav-menu {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .nav-menu { display: flex; }
}

.nav-link {
  color: var(--color-gray-600);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-fast);
}

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

.nav-cta {
  display: none;
}

@media (min-width: 768px) {
  .nav-cta { display: block; }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-2);
}

@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

.nav-toggle span {
  width: 1.5rem;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

.hero-gradient {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    var(--color-background) 0%, 
    var(--color-background) 50%, 
    var(--color-gray-50) 100%);
}

.hero-content {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text {
  text-align: center;
}

@media (min-width: 1024px) {
  .hero-text { text-align: left; }
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .hero-title { font-size: var(--font-size-5xl); }
}

@media (min-width: 768px) {
  .hero-title { font-size: var(--font-size-6xl); }
}

@media (min-width: 1024px) {
  .hero-title { font-size: var(--font-size-7xl); }
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
  line-height: 1.7;
  max-width: 600px;
}

@media (min-width: 1024px) {
  .hero-description { font-size: var(--font-size-xl); }
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .hero-actions { justify-content: flex-start; }
}

.trust-indicators {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .trust-indicators { justify-content: flex-start; }
}

.trust-item {
  text-align: center;
}

.trust-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.trust-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* DNA Animation */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  order: -1;
}

@media (min-width: 1024px) {
  .hero-visual { order: 1; }
}

.dna-container {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
}

.dna-canvas {
  width: 100%;
  height: 100%;
}

.ai-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0.6;
}

.particle-1 { top: 20%; left: 20%; animation: float 4s ease-in-out infinite; }
.particle-2 { top: 80%; left: 80%; animation: float 5s ease-in-out infinite 0.5s; }
.particle-3 { top: 50%; left: 10%; animation: float 6s ease-in-out infinite 1s; }
.particle-4 { top: 10%; left: 60%; animation: float 4.5s ease-in-out infinite 1.5s; }
.particle-5 { top: 70%; left: 30%; animation: float 5.5s ease-in-out infinite 2s; }
.particle-6 { top: 30%; left: 70%; animation: float 6.5s ease-in-out infinite 2.5s; }

/* Elementos flotantes */
.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-element {
  position: absolute;
  font-family: 'Courier New', monospace;
  font-size: var(--font-size-sm);
  color: var(--color-gray-300);
  opacity: 0.5;
  user-select: none;
}

.float-1 {
  top: 10%;
  left: 5%;
  animation: floatY 4s ease-in-out infinite;
}

.float-2 {
  bottom: 15%;
  right: 5%;
  animation: floatY 5s ease-in-out infinite 1s;
}

.float-3 {
  top: 20%;
  right: 15%;
  animation: floatX 3s ease-in-out infinite 2s;
}

/* Secciones genéricas */
section {
  padding: var(--space-20) 0;
}

@media (min-width: 1024px) {
  section { padding: var(--space-24) 0; }
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

@media (min-width: 768px) {
  .section-title { font-size: var(--font-size-4xl); }
}

@media (min-width: 1024px) {
  .section-title { font-size: var(--font-size-5xl); }
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Servicios */
.services {
  background: var(--color-gray-50);
}

.services-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
  background: var(--color-background);
  padding: var(--space-8);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.service-icon {
  width: 4rem;
  height: 4rem;
  background: var(--color-primary);
  color: var(--color-background);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  transition: transform var(--transition-base);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}

.service-description {
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* Tecnología */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .tech-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) {
  .tech-grid { grid-template-columns: repeat(4, 1fr); }
}

.tech-item {
  background: var(--color-background);
  padding: var(--space-4);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-gray-200);
  text-align: center;
  font-family: 'Courier New', monospace;
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all var(--transition-base);
  cursor: pointer;
}

.tech-item:hover {
  transform: scale(1.05);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

/* Seguridad */
.security {
  background: var(--color-gray-50);
}

.security-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .security-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .security-grid { grid-template-columns: repeat(3, 1fr); }
}

.security-card {
  background: var(--color-background);
  padding: var(--space-6);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-200);
  display: flex;
  gap: var(--space-4);
  transition: all var(--transition-base);
}

.security-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.security-icon {
  width: 3rem;
  height: 3rem;
  background: var(--color-primary);
  color: var(--color-background);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.security-content {
  flex: 1;
}

.security-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-primary);
}

.security-description {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* Contacto */
.contact-card {
  background: var(--color-background);
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .contact-card { grid-template-columns: 1fr 1fr; }
}

.contact-content {
  padding: var(--space-12);
  text-align: center;
}

@media (min-width: 1024px) {
  .contact-content { text-align: left; }
}

.contact-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

@media (min-width: 768px) {
  .contact-title { font-size: var(--font-size-4xl); }
}

.contact-description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .contact-actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .contact-actions { justify-content: flex-start; }
}

.contact-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .contact-features {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .contact-features { justify-content: flex-start; }
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

/* Formulario */
.contact-form {
  background: var(--color-gray-50);
  padding: var(--space-12);
}

.form-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-6);
  text-align: center;
  color: var(--color-primary);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-gray-700);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: inherit;
  background: var(--color-background);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Alertas */
.alert {
  padding: var(--space-4);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
}

.alert-error {
  background: #fef2f2;
  color: var(--color-error);
  border: 1px solid #fecaca;
}

.alert-success {
  background: #f0fdf4;
  color: var(--color-success);
  border: 1px solid #bbf7d0;
}

/* Footer */
.footer {
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
  padding: var(--space-12) 0 var(--space-8);
  margin-top: auto;
}

.footer-content {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .footer-content { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer-content { grid-template-columns: repeat(4, 1fr); }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-brand { grid-column: span 2; }
}

@media (min-width: 1024px) {
  .footer-brand {
    grid-column: span 1;
    align-items: flex-start;
    text-align: left;
  }
}

.footer-description {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin-top: var(--space-4);
  line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-list li {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.footer-list li:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-200);
  padding-top: var(--space-8);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
}

/* Efectos especiales */
.ai-glow {
  position: relative;
  overflow: hidden;
}

.ai-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(0, 0, 0, 0.1), 
    transparent);
  animation: aiGlow 3s ease-in-out infinite;
}

.cyber-badge {
  position: relative;
  overflow: hidden;
}

.cyber-badge::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(0, 0, 0, 0.2), 
    transparent);
  animation: cyberScan 3s ease-in-out infinite;
}

/* Animaciones */
@keyframes float {
  0%, 100% {
    transform: translateY(0px) scale(1);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-10px) scale(1.2);
    opacity: 1;
  }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes floatX {
  0%, 100% { transform: translateX(0px); }
  50% { transform: translateX(20px); }
}

@keyframes aiGlow {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

@keyframes cyberScan {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

/* Responsive */
@media (max-width: 767px) {
  .hero {
    padding-top: 6rem;
    min-height: auto;
    padding-bottom: var(--space-16);
  }
  
  .hero-content { gap: var(--space-8); }
  
  .trust-indicators { gap: var(--space-6); }
  
  .contact-form { padding: var(--space-8); }
}

/* Accesibilidad */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html { scroll-behavior: auto; }
}

.btn:focus-visible,
.nav-link:focus-visible,
.form-input:focus-visible,
.form-textarea:focus-visible,
.tech-item:focus-visible,
.service-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Formulario errores */
.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.field-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.field-error::before {
  content: '⚠';
  font-size: var(--font-size-base);
}

/* Loading dots */
.loading-dots {
  display: flex;
  gap: 2px;
}

.loading-dots span {
  width: 4px;
  height: 4px;
  background: currentColor;
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% { transform: translateY(0); }
  40%, 43% { transform: translateY(-10px); }
  70% { transform: translateY(-5px); }
  90% { transform: translateY(-2px); }
}

/* Menú móvil */
.nav-menu.active {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-background);
  flex-direction: column;
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--color-gray-200);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

body.menu-open {
  overflow: hidden;
}