/* Variables de colores */
:root {
  --primary-blue: #4f46e5;
  --primary-purple: #7c3aed;
  --primary-pink: #ec4899;
  --primary-orange: #f97316;
  --primary-green: #10b981;
  --primary-teal: #14b8a6;
  --primary-red: #ef4444;
  --primary-yellow: #f59e0b;
  
  --secondary-blue: #3b82f6;
  --secondary-purple: #8b5cf6;
  --secondary-pink: #f472b6;
  --secondary-orange: #fb923c;
  --secondary-green: #34d399;
  --secondary-teal: #5eead4;
  
  --light-blue: #dbeafe;
  --light-purple: #ede9fe;
  --light-pink: #fce7f3;
  --light-orange: #fed7aa;
  --light-green: #d1fae5;
  --light-teal: #ccfbf1;
  
  --dark-gray: #1f2937;
  --medium-gray: #6b7280;
  --light-gray: #f9fafb;
  --white: #ffffff;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-purple) 50%, var(--light-pink) 100%);
  min-height: 100vh;
}

/* Header con gradiente multicolor */
header {
  background: linear-gradient(135deg, 
    var(--primary-blue) 0%, 
    var(--primary-purple) 25%, 
    var(--primary-pink) 50%, 
    var(--primary-orange) 75%, 
    var(--primary-teal) 100%);
  color: var(--white);
  padding: 3rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, 
    transparent 30%, 
    rgba(255,255,255,0.1) 50%, 
    transparent 70%);
  animation: shimmer 3s ease-in-out infinite;
}

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

header h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  font-weight: 800;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  position: relative;
  z-index: 1;
}

.subtitle {
  font-size: 1.3rem;
  opacity: 0.95;
  font-weight: 400;
  position: relative;
  z-index: 1;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

/* Navegación con efectos coloridos */
nav {
  background: linear-gradient(90deg, 
    var(--light-blue) 0%, 
    var(--light-purple) 50%, 
    var(--light-pink) 100%);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
  border-bottom: 3px solid var(--primary-blue);
}

nav a {
  color: var(--primary-purple);
  text-decoration: none;
  margin: 0 1.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
}

nav a:hover {
  color: var(--white);
  background: linear-gradient(45deg, var(--primary-pink), var(--primary-orange));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Navegación principal con tarjetas coloridas */
.main-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.nav-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: var(--dark-gray);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
}

.nav-card:nth-child(1) {
  border-left: 6px solid var(--primary-blue);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
}

.nav-card:nth-child(2) {
  border-left: 6px solid var(--primary-purple);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-purple) 100%);
}

.nav-card:nth-child(3) {
  border-left: 6px solid var(--primary-pink);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-pink) 100%);
}

.nav-card:nth-child(4) {
  border-left: 6px solid var(--primary-teal);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-teal) 100%);
}

.nav-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, 
    transparent, 
    rgba(255,255,255,0.3), 
    transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.nav-card:hover::before {
  transform: translateX(100%);
}

.nav-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
  text-decoration: none;
  color: var(--dark-gray);
}

.nav-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.nav-card:nth-child(1) h3 { color: var(--primary-blue); }
.nav-card:nth-child(2) h3 { color: var(--primary-purple); }
.nav-card:nth-child(3) h3 { color: var(--primary-pink); }
.nav-card:nth-child(4) h3 { color: var(--primary-teal); }

.nav-card p {
  color: var(--medium-gray);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* Contenido principal */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

section {
  background: var(--white);
  margin-bottom: 2.5rem;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  border-top: 4px solid var(--primary-blue);
}

section:nth-child(even) {
  border-top-color: var(--primary-purple);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-purple) 100%);
}

section:nth-child(odd) {
  border-top-color: var(--primary-teal);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-teal) 100%);
}

section h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border-bottom: 3px solid var(--light-blue);
  padding-bottom: 0.8rem;
}

section h3 {
  color: var(--primary-pink);
  margin-bottom: 1rem;
  margin-top: 2rem;
  font-size: 1.4rem;
  font-weight: 600;
}

/* Fórmulas con diseño colorido */
.formula {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-purple) 100%);
  border: 3px solid var(--primary-blue);
  border-radius: 15px;
  padding: 1.5rem;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 1.4rem;
  text-align: center;
  margin: 1.5rem 0;
  color: var(--primary-purple);
  font-weight: 700;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.formula::before {
  content: '📐';
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 1.2rem;
  opacity: 0.3;
}

/* Listas con colores */
ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

li {
  margin-bottom: 0.8rem;
  position: relative;
  padding-left: 0.5rem;
}

li::before {
  content: '▶';
  color: var(--primary-orange);
  font-weight: bold;
  position: absolute;
  left: -1.5rem;
}

/* Grid de objetivos con colores vibrantes */
.objectives-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.objective {
  padding: 2rem;
  border-radius: 15px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.objective:nth-child(1) {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--secondary-blue) 100%);
  border-left: 5px solid var(--primary-blue);
}

.objective:nth-child(2) {
  background: linear-gradient(135deg, var(--light-green) 0%, var(--secondary-green) 100%);
  border-left: 5px solid var(--primary-green);
}

.objective:nth-child(3) {
  background: linear-gradient(135deg, var(--light-pink) 0%, var(--secondary-pink) 100%);
  border-left: 5px solid var(--primary-pink);
}

.objective:nth-child(4) {
  background: linear-gradient(135deg, var(--light-orange) 0%, var(--secondary-orange) 100%);
  border-left: 5px solid var(--primary-orange);
}

.objective:hover {
  transform: translateY(-5px);
}

.objective h3 {
  margin-bottom: 0.8rem;
  margin-top: 0;
  font-size: 1.3rem;
  font-weight: 700;
}

.objective:nth-child(1) h3 { color: var(--primary-blue); }
.objective:nth-child(2) h3 { color: var(--primary-green); }
.objective:nth-child(3) h3 { color: var(--primary-pink); }
.objective:nth-child(4) h3 { color: var(--primary-orange); }

/* Estilos de quiz coloridos */
.quiz-question {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-purple) 100%);
  border-radius: 15px;
  padding: 2rem;
  margin-bottom: 2rem;
  border-left: 6px solid var(--primary-blue);
  box-shadow: var(--shadow-md);
  position: relative;
}

.quiz-question::before {
  content: '❓';
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 1.5rem;
}

.quiz-question h4 {
  color: var(--dark-gray);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
}

.quiz-options {
  list-style: none;
  margin-left: 0;
}

.quiz-options li {
  margin-bottom: 1rem;
}

.quiz-options li::before {
  display: none;
}

.quiz-options label {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 1rem;
  border-radius: 10px;
  transition: all 0.3s ease;
  background: var(--white);
  border: 2px solid transparent;
  font-weight: 500;
}

.quiz-options label:hover {
  background: linear-gradient(135deg, var(--light-pink) 0%, var(--light-orange) 100%);
  border-color: var(--primary-pink);
  transform: translateX(5px);
}

.quiz-options input[type="radio"] {
  margin-right: 1rem;
  transform: scale(1.3);
  accent-color: var(--primary-purple);
}

.quiz-feedback {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

.quiz-feedback.correct {
  background: linear-gradient(135deg, var(--light-green) 0%, var(--secondary-green) 100%);
  color: var(--primary-green);
  border: 2px solid var(--primary-green);
}

.quiz-feedback.correct::before {
  content: '✅ ';
  font-size: 1.2rem;
}

.quiz-feedback.incorrect {
  background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
  color: var(--primary-red);
  border: 2px solid var(--primary-red);
}

.quiz-feedback.incorrect::before {
  content: '❌ ';
  font-size: 1.2rem;
}

.quiz-submit {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-purple) 100%);
  color: var(--white);
  border: none;
  padding: 1rem 2.5rem;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.quiz-submit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.quiz-submit:hover::before {
  left: 100%;
}

.quiz-submit:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.quiz-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  background: var(--medium-gray);
}

/* Footer colorido */
footer {
  background: linear-gradient(135deg, var(--dark-gray) 0%, var(--primary-purple) 100%);
  color: var(--white);
  text-align: center;
  padding: 3rem;
  margin-top: 4rem;
  box-shadow: var(--shadow-xl);
}

/* GeoGebra container mejorado */
#ggb-pitagoras, #ggb-thales, #ggb-areas, #ggb-geometria {
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--primary-teal);
}

/* Responsive design */
@media (max-width: 768px) {
  header h1 {
    font-size: 2.2rem;
  }
  
  .subtitle {
    font-size: 1.1rem;
  }
  
  .main-nav {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 1.5rem;
  }
  
  main {
    padding: 1rem;
  }
  
  section {
    padding: 1.5rem;
  }
  
  nav a {
    display: block;
    margin: 0.5rem 0;
  }
  
  .objectives-grid {
    grid-template-columns: 1fr;
  }
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

section {
  animation: fadeInUp 0.8s ease-out;
}

.nav-card:hover {
  animation: pulse 2s infinite;
}

/* Efectos de scroll */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}



/* Estilos para visualizaciones interactivas */
.visualizacion-wrapper {
  background: var(--white);
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--primary-teal);
}

.visualizacion-canvas {
  width: 100%;
  max-width: 600px;
  height: 400px;
  display: block;
  margin: 0 auto 1.5rem auto;
  border-radius: 10px;
  box-shadow: var(--shadow-md);
}

.visualizacion-controles {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-purple) 100%);
  padding: 1.5rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  border: 2px solid var(--primary-blue);
}

.control-group {
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.control-group label {
  font-weight: 600;
  color: var(--dark-gray);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-group input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: var(--light-gray);
  outline: none;
  -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-purple));
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

.control-group input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-purple));
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md);
}

.control-group select {
  padding: 0.5rem;
  border: 2px solid var(--primary-blue);
  border-radius: 8px;
  background: var(--white);
  font-weight: 500;
  color: var(--dark-gray);
}

.control-group input[type="checkbox"] {
  transform: scale(1.2);
  accent-color: var(--primary-purple);
}

.visualizacion-info {
  background: linear-gradient(135deg, var(--light-green) 0%, var(--light-teal) 100%);
  padding: 1.5rem;
  border-radius: 10px;
  border: 2px solid var(--primary-green);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
}

.visualizacion-info p {
  margin-bottom: 0.5rem;
  color: var(--dark-gray);
}

.visualizacion-info strong {
  color: var(--primary-teal);
}

/* Responsive para visualizaciones */
@media (max-width: 768px) {
  .visualizacion-canvas {
    height: 300px;
  }
  
  .visualizacion-controles {
    padding: 1rem;
  }
  
  .control-group {
    margin-bottom: 0.8rem;
  }
  
  .control-group label {
    font-size: 0.9rem;
  }
}

/* Animaciones para controles */
.control-group input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.control-group select:focus,
.control-group input[type="range"]:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* Efectos de transición */
.visualizacion-wrapper {
  transition: all 0.3s ease;
}

.visualizacion-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}



/* Estilos para Simulador Avanzado de Geometría */
.simulador-wrapper {
  background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  border: 3px solid var(--primary-teal);
  margin: 1rem 0;
}

.simulador-header {
  text-align: center;
  margin-bottom: 2rem;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-purple) 100%);
  color: var(--white);
  border-radius: 15px;
  box-shadow: var(--shadow-md);
}

.simulador-header h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.simulador-header p {
  margin: 0;
  opacity: 0.9;
  font-size: 1rem;
}

.simulador-controles {
  background: linear-gradient(135deg, var(--light-purple) 0%, var(--light-pink) 100%);
  padding: 1.5rem;
  border-radius: 15px;
  margin-bottom: 1.5rem;
  border: 2px solid var(--primary-purple);
}

.selector-figura {
  margin-bottom: 1.5rem;
}

.selector-figura label {
  display: block;
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.figura-select {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid var(--primary-blue);
  border-radius: 10px;
  background: var(--white);
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark-gray);
  cursor: pointer;
  transition: all 0.3s ease;
}

.figura-select:focus {
  outline: none;
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.figura-select optgroup {
  font-weight: 700;
  color: var(--primary-blue);
  background: var(--light-blue);
}

.figura-select option {
  padding: 0.5rem;
  font-weight: 500;
}

.controles-dimensiones {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.control-item {
  background: var(--white);
  padding: 1rem;
  border-radius: 10px;
  border: 2px solid var(--primary-teal);
  box-shadow: var(--shadow-sm);
}

.control-item label {
  display: block;
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 0.8rem;
  font-size: 1rem;
}

.control-item input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--light-teal) 0%, var(--primary-teal) 100%);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.control-item input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-teal), var(--primary-blue));
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.control-item input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: var(--shadow-lg);
}

.control-item input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-teal), var(--primary-blue));
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md);
}

.simulador-visual {
  background: var(--white);
  border-radius: 15px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 2px solid var(--primary-green);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.area-visual {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.area-visual svg {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.svg-label {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  fill: var(--dark-gray);
}

.simulador-resultados {
  background: linear-gradient(135deg, var(--light-green) 0%, var(--light-teal) 100%);
  border-radius: 15px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 2px solid var(--primary-green);
  box-shadow: var(--shadow-md);
}

.resultados-panel h4 {
  margin: 0 0 1rem 0;
  color: var(--primary-green);
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
}

.resultado-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem;
  margin-bottom: 0.5rem;
  background: var(--white);
  border-radius: 8px;
  border-left: 4px solid var(--primary-green);
  box-shadow: var(--shadow-sm);
}

.resultado-item.area {
  border-left-color: var(--primary-blue);
}

.resultado-item.volumen {
  border-left-color: var(--primary-purple);
}

.resultado-item.perimetro {
  border-left-color: var(--primary-orange);
}

.resultado-item.superficie {
  border-left-color: var(--primary-pink);
}

.resultado-label {
  font-weight: 600;
  color: var(--dark-gray);
  font-size: 1rem;
}

.resultado-valor {
  font-weight: 700;
  color: var(--primary-green);
  font-size: 1.1rem;
  font-family: 'JetBrains Mono', monospace;
}

.simulador-formulas {
  background: linear-gradient(135deg, var(--light-orange) 0%, var(--light-pink) 100%);
  border-radius: 15px;
  padding: 1.5rem;
  border: 2px solid var(--primary-orange);
  box-shadow: var(--shadow-md);
}

.formulas-panel h4 {
  margin: 0 0 1rem 0;
  color: var(--primary-orange);
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
}

.formula-item {
  background: var(--white);
  padding: 1rem;
  margin-bottom: 0.8rem;
  border-radius: 8px;
  border-left: 4px solid var(--primary-orange);
  box-shadow: var(--shadow-sm);
}

.formula-tipo {
  display: block;
  font-weight: 600;
  color: var(--primary-orange);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.formula-codigo {
  display: block;
  background: linear-gradient(135deg, var(--light-gray) 0%, var(--light-blue) 100%);
  padding: 0.8rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--dark-gray);
  border: 1px solid var(--primary-blue);
  font-weight: 500;
}

/* Animaciones para el simulador */
.simulador-wrapper {
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.resultado-item,
.formula-item {
  transition: all 0.3s ease;
}

.resultado-item:hover,
.formula-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

/* Responsive para simulador */
@media (max-width: 768px) {
  .simulador-wrapper {
    padding: 1rem;
  }
  
  .controles-dimensiones {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }
  
  .control-item {
    padding: 0.8rem;
  }
  
  .simulador-header h3 {
    font-size: 1.3rem;
  }
  
  .simulador-header p {
    font-size: 0.9rem;
  }
  
  .area-visual svg {
    padding: 0.5rem;
  }
  
  .resultado-item,
  .formula-item {
    padding: 0.6rem;
  }
}

/* Estados de carga */
.simulador-wrapper.loading {
  opacity: 0.7;
  pointer-events: none;
}

.simulador-wrapper.loading::after {
  content: '⚙️ Calculando...';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--white);
  padding: 1rem 2rem;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  color: var(--primary-blue);
}


/* Estilos para Calculadora Avanzada */
.caracteristicas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.caracteristica {
  background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
  padding: 1.5rem;
  border-radius: 15px;
  border: 2px solid var(--primary-blue);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.caracteristica:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.caracteristica h3 {
  color: var(--primary-blue);
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 700;
}

.caracteristica ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.caracteristica li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--light-gray);
  color: var(--dark-gray);
  font-weight: 500;
}

.caracteristica li:last-child {
  border-bottom: none;
}

.caracteristica li::before {
  content: '✓';
  color: var(--primary-green);
  font-weight: bold;
  margin-right: 0.5rem;
}

.aplicaciones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.aplicacion {
  background: linear-gradient(135deg, var(--light-green) 0%, var(--light-teal) 100%);
  padding: 1.5rem;
  border-radius: 15px;
  border: 2px solid var(--primary-green);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.aplicacion:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.aplicacion h3 {
  color: var(--primary-green);
  margin-bottom: 1rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.aplicacion p {
  color: var(--dark-gray);
  line-height: 1.6;
  margin: 0;
  font-weight: 500;
}

/* Estilos mejorados para nav-card */
.nav-card:nth-child(5) {
  background: linear-gradient(135deg, var(--primary-orange) 0%, var(--primary-pink) 100%);
  border: 3px solid var(--primary-orange);
  position: relative;
  overflow: hidden;
}

.nav-card:nth-child(5)::before {
  content: '⭐';
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 1.5rem;
  animation: sparkle 2s infinite;
}

@keyframes sparkle {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.2) rotate(180deg); }
}

.nav-card:nth-child(5) h3 {
  color: var(--white);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.nav-card:nth-child(5) p {
  color: rgba(255,255,255,0.9);
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

/* Efectos adicionales para simulador */
.simulador-wrapper:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.control-item:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-md);
}

.figura-select:hover {
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

/* Animaciones de entrada */
.caracteristica,
.aplicacion {
  animation: slideInUp 0.6s ease-out;
}

.caracteristica:nth-child(2) {
  animation-delay: 0.1s;
}

.caracteristica:nth-child(3) {
  animation-delay: 0.2s;
}

.aplicacion:nth-child(2) {
  animation-delay: 0.1s;
}

.aplicacion:nth-child(3) {
  animation-delay: 0.2s;
}

.aplicacion:nth-child(4) {
  animation-delay: 0.3s;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive mejorado */
@media (max-width: 768px) {
  .caracteristicas-grid,
  .aplicaciones-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .caracteristica,
  .aplicacion {
    padding: 1rem;
  }
  
  .caracteristica h3,
  .aplicacion h3 {
    font-size: 1rem;
  }
}

/* Estados de interacción mejorados */
.resultado-item:hover .resultado-valor {
  color: var(--primary-blue);
  transform: scale(1.05);
}

.formula-item:hover .formula-codigo {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-purple) 100%);
  border-color: var(--primary-purple);
}

/* Indicadores visuales */
.simulador-wrapper.active {
  border-color: var(--primary-green);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.control-item.changed {
  border-color: var(--primary-orange);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-orange) 100%);
}

/* Tooltips para fórmulas */
.formula-codigo:hover {
  cursor: help;
  position: relative;
}

.formula-codigo:hover::after {
  content: 'Haz clic para copiar';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dark-gray);
  color: var(--white);
  padding: 0.5rem;
  border-radius: 5px;
  font-size: 0.8rem;
  white-space: nowrap;
  z-index: 1000;
}


/* Estilos para Simulador Optimizado para Moodle */
.moodle-simulador {
  background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
  border: 3px solid #14b8a6;
  border-radius: 20px;
  padding: 2rem;
  margin: 1rem 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.simulador-header-moodle {
  text-align: center;
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: white;
  padding: 1.5rem;
  border-radius: 15px;
  margin-bottom: 2rem;
  box-shadow: 0 5px 15px rgba(79, 70, 229, 0.3);
}

.simulador-header-moodle h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.simulador-header-moodle p {
  margin: 0;
  opacity: 0.9;
  font-size: 1rem;
}

.controles-principales {
  background: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
  padding: 1.5rem;
  border-radius: 15px;
  margin-bottom: 2rem;
  border: 2px solid #f59e0b;
}

.selector-figura-moodle {
  margin-bottom: 1.5rem;
}

.selector-figura-moodle label {
  display: block;
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.figura-dropdown {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid #4f46e5;
  border-radius: 10px;
  background: white;
  font-size: 1rem;
  font-weight: 500;
  color: #374151;
  cursor: pointer;
  transition: all 0.3s ease;
}

.figura-dropdown:focus {
  outline: none;
  border-color: #7c3aed;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.controles-dimensiones-moodle {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.control-moodle {
  background: white;
  padding: 1rem;
  border-radius: 10px;
  border: 2px solid #14b8a6;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.control-moodle label {
  display: block;
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.8rem;
  font-size: 0.95rem;
}

.control-moodle input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: linear-gradient(90deg, #a7f3d0 0%, #14b8a6 100%);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.control-moodle input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(45deg, #14b8a6, #4f46e5);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}

.control-moodle input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.resultados-moodle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.area-visual-moodle {
  background: white;
  border: 2px solid #10b981;
  border-radius: 15px;
  padding: 1.5rem;
  text-align: center;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 15px rgba(16, 185, 129, 0.1);
}

.area-visual-moodle svg {
  max-width: 100%;
  height: auto;
}

.svg-text {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  fill: #374151;
}

.figura-placeholder {
  width: 150px;
  height: 100px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #374151;
  margin: 0 auto;
}

.calculos-moodle {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
  border: 2px solid #10b981;
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: 0 5px 15px rgba(16, 185, 129, 0.1);
}

.calculos-moodle h4 {
  margin: 0 0 1rem 0;
  color: #10b981;
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
}

.resultado-moodle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem;
  margin-bottom: 0.5rem;
  background: white;
  border-radius: 8px;
  border-left: 4px solid #10b981;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.resultado-moodle .etiqueta {
  font-weight: 600;
  color: #374151;
}

.resultado-moodle .valor {
  font-weight: 700;
  color: #10b981;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
}

.formulas-moodle {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 2px solid #f59e0b;
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: 0 5px 15px rgba(245, 158, 11, 0.1);
}

.formulas-moodle h4 {
  margin: 0 0 1rem 0;
  color: #f59e0b;
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
}

.formula-moodle {
  background: white;
  padding: 1rem;
  margin-bottom: 0.8rem;
  border-radius: 8px;
  border-left: 4px solid #f59e0b;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.formula-moodle code {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.95rem;
  color: #374151;
  font-weight: 500;
}

/* Animaciones */
.moodle-simulador {
  animation: fadeInScale 0.8s ease-out;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.resultado-moodle,
.formula-moodle {
  transition: all 0.3s ease;
}

.resultado-moodle:hover,
.formula-moodle:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Responsive para Moodle */
@media (max-width: 768px) {
  .moodle-simulador {
    padding: 1rem;
  }
  
  .resultados-moodle {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .controles-dimensiones-moodle {
    grid-template-columns: 1fr;
  }
  
  .simulador-header-moodle h3 {
    font-size: 1.3rem;
  }
  
  .area-visual-moodle {
    min-height: 150px;
  }
}

/* Estados especiales para Moodle */
.moodle-simulador.cargando {
  opacity: 0.7;
}

.moodle-simulador.cargando::after {
  content: '⚙️ Inicializando...';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: 1rem 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  font-weight: 600;
  color: #4f46e5;
  z-index: 1000;
}

/* Compatibilidad con temas de Moodle */
.moodle-simulador * {
  box-sizing: border-box;
}

.moodle-simulador input,
.moodle-simulador select {
  font-family: inherit;
}

/* Mejoras de accesibilidad */
.control-moodle input[type="range"]:focus {
  outline: 2px solid #4f46e5;
  outline-offset: 2px;
}

.figura-dropdown:focus {
  outline: 2px solid #4f46e5;
  outline-offset: 2px;
}


/* Estilos para el nombre del autor */
.author-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: #7c3aed;
  margin: 0.5rem 0;
  text-align: center;
  font-style: italic;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Estilos para imágenes de fórmulas */
.formula-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  margin: 1rem 0;
  border: 2px solid #14b8a6;
}

.formula-container {
  text-align: center;
  margin: 2rem 0;
  padding: 1rem;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-radius: 15px;
  border: 2px solid #0ea5e9;
}

.formula-container h4 {
  color: #0ea5e9;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

/* Estilos para imágenes de aplicaciones */
.application-image {
  max-width: 100%;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  margin: 1.5rem 0;
  border: 3px solid #f59e0b;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.application-image:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 35px rgba(0,0,0,0.2);
}

.application-container {
  text-align: center;
  margin: 2rem 0;
  padding: 1.5rem;
  background: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
  border-radius: 20px;
  border: 3px solid #f59e0b;
}

.application-container h4 {
  color: #f59e0b;
  margin-bottom: 1rem;
  font-size: 1.4rem;
  font-weight: 700;
}

.application-container p {
  color: #374151;
  font-size: 1rem;
  line-height: 1.6;
  margin-top: 1rem;
}

/* Grid para aplicaciones */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

/* Responsive para imágenes */
@media (max-width: 768px) {
  .author-name {
    font-size: 1rem;
  }
  
  .applications-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .application-container,
  .formula-container {
    padding: 1rem;
  }
}