/* ===================================
   AIBRA EDUCACIÓN - STYLES
   Plataforma 100% Inclusiva
   =================================== */

/* ===================================
   CSS VARIABLES & DESIGN TOKENS
   =================================== */
:root {
  /* Colores principales */
  --primary: #2E7D32;
  --primary-light: #4CAF50;
  --primary-dark: #1B5E20;
  --secondary: #0277BD;
  --secondary-light: #03A9F4;
  --accent: #F57C00;
  --accent-light: #FF9800;
  
  /* Colores de fondo */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F5F5F5;
  --bg-dark: #1a1a2e;
  --bg-darker: #0f0f1a;
  
  /* Colores de texto */
  --text-primary: #212121;
  --text-secondary: #757575;
  --text-light: #FFFFFF;
  
  /* Gradientes */
  --gradient-hero: linear-gradient(135deg, #2E7D32 0%, #0277BD 100%);
  --gradient-inclusion: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 100%);
  --gradient-cta: linear-gradient(135deg, #F57C00 0%, #FF9800 100%);
  
  /* Glass effect */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  
  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.2);
  
  /* Tipografía */
  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-heading: 'Instrument Serif', 'Georgia', serif;
  --font-body: 'DM Sans', 'Helvetica', sans-serif;
  
  /* Tamaños de texto */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3rem;
  --text-6xl: 4rem;
  
  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Radios */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transiciones */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-toast: 600;
}

/* ===================================
   MODO DE ALTO CONTRASTE
   =================================== */
body.high-contrast {
  --bg-primary: #000000;
  --bg-secondary: #000000;
  --bg-dark: #000000;
  --text-primary: #FFFF00;
  --text-secondary: #FFFF00;
  --primary: #FFFF00;
  --primary-light: #FFFF00;
  --secondary: #FFFF00;
  --accent: #FFFF00;
}

body.high-contrast * {
  background-image: none !important;
  border-color: #FFFF00 !important;
}

body.high-contrast .feature-card,
body.high-contrast .level-card,
body.high-contrast .tech-item,
body.high-contrast .inclusion-card,
body.high-contrast .testimonial-card {
  background: #000000 !important;
  border: 3px solid #FFFF00 !important;
  color: #FFFF00 !important;
}

body.high-contrast button,
body.high-contrast a {
  background: #FFFF00 !important;
  color: #000000 !important;
  border: 2px solid #FFFF00 !important;
}

/* ===================================
   RESET Y BASE
   =================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===================================
   ACCESIBILIDAD
   =================================== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  z-index: 9999;
  font-weight: 600;
  border-radius: 0 0 var(--radius-md) 0;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--accent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible para teclado */
*:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ===================================
   BARRA DE ACCESIBILIDAD
   =================================== */
.accessibility-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(26, 26, 46, 0.98);
  backdrop-filter: blur(10px);
  padding: var(--spacing-sm) 5%;
  z-index: var(--z-fixed);
  border-bottom: 2px solid var(--primary);
  box-shadow: var(--shadow-md);
}

.accessibility-controls {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.acc-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.acc-btn:hover,
.acc-btn:focus {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-selector label {
  color: white;
  font-weight: 600;
  font-size: var(--text-sm);
}

.lang-selector select {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  border: 2px solid var(--primary);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  background: white;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lang-selector select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(245, 124, 0, 0.2);
}

/* ===================================
   NAVBAR
   =================================== */
.navbar {
  position: fixed;
  top: 50px;
  left: 0;
  right: 0;
  background: rgba(26, 26, 46, 0.98);
  backdrop-filter: blur(10px);
  padding: var(--spacing-md) 5%;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  padding: var(--spacing-sm) 5%;
  box-shadow: var(--shadow-xl);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  transition: transform var(--transition-base);
}

.logo:hover,
.logo:focus {
  transform: scale(1.05);
}

.logo-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-hero);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: var(--text-2xl);
  color: white;
  font-family: var(--font-display);
  box-shadow: var(--shadow-md);
}

.logo-text h1 {
  font-size: var(--text-2xl);
  color: white;
  font-family: var(--font-display);
  letter-spacing: 1px;
}

.logo-text p {
  font-size: var(--text-xs);
  color: var(--primary-light);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: var(--z-fixed);
}

.hamburger {
  display: block;
  width: 30px;
  height: 3px;
  background: white;
  position: relative;
  transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 3px;
  background: white;
  transition: all var(--transition-base);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: var(--text-base);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-light);
  transition: width var(--transition-base);
}

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

.nav-links a:hover,
.nav-links a:focus {
  color: var(--primary-light);
  background: rgba(76, 175, 80, 0.1);
}

.btn-login {
  background: var(--primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  font-weight: 700;
  font-size: var(--text-base);
  font-family: var(--font-body);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.btn-login:hover,
.btn-login:focus {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  margin-top: 130px;
  min-height: 90vh;
  background: var(--gradient-hero);
  padding: var(--spacing-3xl) 5%;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: var(--z-base);
}

.hero-text {
  color: white;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-family: var(--font-display);
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease backwards;
  letter-spacing: 1px;
}

.hero-title .highlight {
  color: var(--accent-light);
  display: inline-block;
  position: relative;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--accent);
  opacity: 0.3;
  border-radius: var(--radius-sm);
}

.hero-subtitle {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  line-height: 1.6;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-badges {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.8s ease 0.3s backwards;
}

.badge {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-full);
  border: 2px solid var(--glass-border);
  font-weight: 700;
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-base);
}

.badge:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.btn-primary,
.btn-secondary {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  border: none;
  font-size: var(--text-lg);
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
}

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

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--bg-secondary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 500px;
  animation: fadeIn 1s ease 0.5s backwards;
}

.floating-card {
  position: absolute;
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  animation: float 3s ease-in-out infinite;
}

.floating-card .card-icon {
  font-size: var(--text-4xl);
}

.floating-card .card-text {
  font-weight: 700;
  color: var(--primary);
  font-size: var(--text-lg);
}

.card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 40%;
  right: 10%;
  animation-delay: 1s;
}

.card-3 {
  bottom: 10%;
  left: 30%;
  animation-delay: 2s;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: white;
  opacity: 0.8;
  animation: fadeIn 1s ease 1s backwards;
}

.scroll-indicator span {
  font-size: var(--text-sm);
  font-weight: 600;
}

.scroll-arrow {
  width: 30px;
  height: 30px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg);
  animation: bounce 2s ease infinite;
}

/* ===================================
   SECTIONS COMUNES
   =================================== */
.section-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-family: var(--font-heading);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  line-height: 1.2;
}

.section-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===================================
   INCLUSIÓN
   =================================== */
.inclusion-section {
  background: var(--gradient-inclusion);
  color: white;
  padding: var(--spacing-3xl) 5%;
}

.inclusion-section .section-title,
.inclusion-section .section-subtitle {
  color: white;
}

.inclusion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.inclusion-card {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border: 2px solid var(--glass-border);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.inclusion-card:hover,
.inclusion-card:focus-within {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-10px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-xl);
}

.inclusion-card .card-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
}

.inclusion-icon {
  font-size: 4rem;
  display: block;
}

.inclusion-card h3 {
  font-size: var(--text-3xl);
  font-family: var(--font-heading);
  color: var(--primary-light);
}

.inclusion-card .card-body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: center;
}

.stat {
  font-size: var(--text-4xl);
  font-weight: 900;
  color: var(--accent-light);
  display: block;
  font-family: var(--font-display);
}

.inclusion-card p {
  font-size: var(--text-base);
  line-height: 1.7;
  opacity: 0.95;
}

.impact {
  font-size: var(--text-lg);
  color: var(--accent-light);
}

.inclusion-card .card-footer {
  margin-top: auto;
}

.btn-learn-more {
  background: var(--primary);
  color: white;
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition-base);
  width: 100%;
  font-size: var(--text-base);
}

.btn-learn-more:hover,
.btn-learn-more:focus {
  background: var(--primary-dark);
  transform: translateX(5px);
}

/* ===================================
   CARACTERÍSTICAS
   =================================== */
.features {
  background: var(--bg-secondary);
  padding: var(--spacing-3xl) 5%;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  border: 2px solid transparent;
}

.feature-card:hover,
.feature-card:focus-within {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.feature-icon {
  font-size: 3.5rem;
  display: block;
}

.feature-card h3 {
  font-size: var(--text-2xl);
  font-family: var(--font-heading);
  color: var(--primary);
}

.feature-card p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===================================
   NIVELES EDUCATIVOS
   =================================== */
.levels {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: var(--spacing-3xl) 5%;
}

.levels .section-title,
.levels .section-subtitle {
  color: white;
}

.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
}

.level-card {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border: 2px solid var(--glass-border);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  position: relative;
}

.level-card-featured {
  border-color: var(--accent-light);
  background: rgba(255, 255, 255, 0.15);
}

.featured-badge {
  position: absolute;
  top: -15px;
  right: var(--spacing-lg);
  background: var(--accent);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--text-sm);
  box-shadow: var(--shadow-md);
}

.level-card:hover,
.level-card:focus-within {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.03);
  box-shadow: var(--shadow-xl);
}

.level-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.level-badge {
  display: inline-block;
  background: var(--primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  width: fit-content;
}

.level-card h3 {
  font-size: var(--text-3xl);
  font-family: var(--font-heading);
}

.level-description {
  font-size: var(--text-base);
  line-height: 1.7;
  opacity: 0.95;
}

.course-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.course-list li {
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.course-list li:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(5px);
}

.course-name {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
}

.course-icon {
  font-size: var(--text-xl);
}

.course-hours {
  font-weight: 700;
  color: var(--accent-light);
  font-size: var(--text-sm);
}

.btn-enroll {
  background: var(--accent);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  width: 100%;
  margin-top: auto;
}

.btn-enroll:hover,
.btn-enroll:focus {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===================================
   TECNOLOGÍA
   =================================== */
.tech-platform {
  background: var(--bg-secondary);
  padding: var(--spacing-3xl) 5%;
}

.tech-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.tech-item {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  border: 2px solid transparent;
}

.tech-item:hover,
.tech-item:focus-within {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary);
}

.tech-icon {
  font-size: 3.5rem;
  display: block;
}

.tech-item h4 {
  font-size: var(--text-xl);
  font-family: var(--font-heading);
  color: var(--secondary);
}

.tech-item p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================
   TESTIMONIOS
   =================================== */
.testimonials {
  background: white;
  padding: var(--spacing-3xl) 5%;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.testimonial-card {
  background: var(--bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  border-left: 4px solid var(--primary);
}

.testimonial-card:hover,
.testimonial-card:focus-within {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-left-color: var(--accent);
}

.testimonial-card blockquote {
  font-size: var(--text-lg);
  font-style: italic;
  line-height: 1.7;
  color: var(--text-primary);
  margin: 0;
}

.testimonial-card blockquote::before {
  content: '"';
  font-size: 3rem;
  color: var(--primary);
  line-height: 0;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.testimonial-card footer {
  margin-top: auto;
}

.testimonial-card cite {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.testimonial-card cite strong {
  color: var(--primary);
  font-size: var(--text-lg);
}

.testimonial-card cite span {
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

/* ===================================
   CALL TO ACTION
   =================================== */
.cta-section {
  background: var(--gradient-cta);
  padding: var(--spacing-3xl) 5%;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta-container {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: var(--z-base);
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-family: var(--font-display);
  color: white;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.cta-subtitle {
  font-size: var(--text-xl);
  color: white;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--text-xl);
}

.cta-note {
  color: white;
  font-weight: 600;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: var(--spacing-3xl) 5% var(--spacing-xl);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
}

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

.footer-section h4 {
  color: var(--primary-light);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-md);
}

.footer-section p {
  line-height: 1.7;
  opacity: 0.9;
  margin-bottom: var(--spacing-sm);
}

.footer-badge {
  display: inline-block;
  background: var(--primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  margin-top: var(--spacing-sm);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: white;
  text-decoration: none;
  transition: color var(--transition-base);
  display: inline-block;
}

.footer-links a:hover,
.footer-links a:focus {
  color: var(--primary-light);
  transform: translateX(5px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  opacity: 0.8;
}

/* ===================================
   MODAL
   =================================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  z-index: var(--z-modal-backdrop);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: white;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  max-width: 700px;
  width: 100%;
  position: relative;
  z-index: var(--z-modal);
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.4s ease;
  max-height: 90vh;
  overflow-y: auto;
}

.close-modal {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 2.5rem;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.close-modal:hover,
.close-modal:focus {
  background: var(--bg-secondary);
  color: var(--primary);
  transform: rotate(90deg);
}

.modal-header {
  margin-bottom: var(--spacing-xl);
}

.modal-header h2 {
  font-size: var(--text-3xl);
  font-family: var(--font-heading);
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.modal-header p {
  color: var(--text-secondary);
  font-size: var(--text-base);
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-row {
  display: grid;
  gap: var(--spacing-md);
}

.form-row-2 {
  grid-template-columns: 1fr 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--text-base);
}

.required {
  color: var(--accent);
}

.form-group input,
.form-group select {
  padding: var(--spacing-md);
  border: 2px solid #ddd;
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: var(--font-body);
  transition: all var(--transition-base);
  background: white;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(46, 125, 50, 0.1);
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: var(--accent);
}

.btn-submit {
  background: var(--primary);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  margin-top: var(--spacing-md);
}

.btn-submit:hover,
.btn-submit:focus {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.form-note {
  text-align: center;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

/* ===================================
   POPUP DE LENGUAS
   =================================== */
.lang-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.lang-popup.active {
  display: flex;
}

.lang-popup-content {
  background: white;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  max-width: 650px;
  width: 100%;
  position: relative;
  z-index: var(--z-modal);
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.4s ease;
  max-height: 90vh;
  overflow-y: auto;
}

.lang-popup-content h3 {
  font-size: var(--text-2xl);
  font-family: var(--font-heading);
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.lang-subtitle {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: var(--text-base);
}

.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing-sm);
}

.lang-btn {
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border: 2px solid var(--primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-body);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  color: var(--text-primary);
}

.lang-btn:hover,
.lang-btn:focus {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.lang-note {
  text-align: center;
  color: var(--text-secondary);
  margin-top: var(--spacing-lg);
  font-size: var(--text-sm);
}

/* ===================================
   BOTÓN DE VOZ
   =================================== */
.voice-btn {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 70px;
  height: 70px;
  border-radius: var(--radius-full);
  background: var(--gradient-hero);
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  box-shadow: var(--shadow-xl);
  transition: all var(--transition-base);
  z-index: var(--z-fixed);
  display: flex;
  align-items: center;
  justify-content: center;
}

.voice-btn:hover,
.voice-btn:focus {
  transform: scale(1.15);
  box-shadow: 0 12px 40px rgba(46, 125, 50, 0.5);
}

.voice-btn.listening {
  animation: pulse 1.5s ease infinite;
  background: var(--gradient-cta);
}

/* ===================================
   TOAST NOTIFICATION
   =================================== */
.toast {
  display: none;
  position: fixed;
  bottom: calc(var(--spacing-xl) + 90px);
  right: var(--spacing-xl);
  background: var(--primary);
  color: white;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  max-width: 350px;
  animation: slideInRight 0.4s ease;
}

.toast.active {
  display: block;
}

.toast p {
  margin: 0;
  font-weight: 600;
  font-size: var(--text-base);
}

/* ===================================
   LOADING
   =================================== */
.loading {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  z-index: var(--z-toast);
  align-items: center;
  justify-content: center;
}

.loading.active {
  display: flex;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--bg-secondary);
  border-top-color: var(--primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateY(0) rotate(-45deg);
  }
  50% {
    transform: translateY(10px) rotate(-45deg);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(46, 125, 50, 0.7);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 20px rgba(46, 125, 50, 0);
  }
}

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

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-visual {
    height: 300px;
  }
  
  .floating-card {
    padding: var(--spacing-md);
  }
  
  .floating-card .card-icon {
    font-size: var(--text-3xl);
  }
  
  .floating-card .card-text {
    font-size: var(--text-base);
  }
}

@media (max-width: 768px) {
  :root {
    --text-6xl: 3rem;
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --spacing-3xl: 4rem;
  }
  
  .accessibility-bar {
    padding: var(--spacing-sm);
  }
  
  .accessibility-controls {
    gap: var(--spacing-xs);
    font-size: var(--text-xs);
  }
  
  .acc-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--text-xs);
  }
  
  .navbar {
    padding: var(--spacing-sm) 5%;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 130px;
    left: 0;
    right: 0;
    background: rgba(26, 26, 46, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--spacing-lg);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .hero {
    margin-top: 130px;
    padding: var(--spacing-2xl) 5%;
  }
  
  .hero-visual {
    display: none;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
  
  .inclusion-grid,
  .features-grid,
  .levels-grid,
  .tech-features,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row-2 {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .voice-btn {
    width: 60px;
    height: 60px;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: 1.5rem;
  }
  
  .toast {
    bottom: calc(var(--spacing-lg) + 80px);
    right: var(--spacing-lg);
    max-width: calc(100% - var(--spacing-xl));
  }
}

@media (max-width: 480px) {
  .modal-content,
  .lang-popup-content {
    padding: var(--spacing-lg);
  }
  
  .section-container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-badges {
    gap: var(--spacing-xs);
  }
  
  .badge {
    font-size: var(--text-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .lang-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  }
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
  .accessibility-bar,
  .navbar,
  .voice-btn,
  .toast,
  .modal,
  .lang-popup,
  .loading,
  .scroll-indicator,
  .hero-visual,
  .btn-primary,
  .btn-secondary,
  .btn-login,
  .btn-enroll,
  .btn-learn-more {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .hero {
    margin-top: 0;
    background: white;
    color: black;
  }
  
  .section-title {
    color: black;
  }
}

/* ===================================
   BRAILLE MODE
   =================================== */
body.braille-mode {
  font-family: 'Braille', 'DejaVu Sans', monospace !important;
  font-size: 32px !important;
  line-height: 2 !important;
  letter-spacing: 8px !important;
}

body.braille-mode * {
  font-family: 'Braille', 'DejaVu Sans', monospace !important;
}

.braille-overlay {
  position: fixed;
  top: 150px;
  right: 20px;
  background: rgba(0, 0, 0, 0.95);
  color: #fff;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  max-width: 400px;
  z-index: var(--z-toast);
  font-family: 'Braille', monospace;
  font-size: 28px;
  line-height: 1.8;
  letter-spacing: 6px;
  display: none;
  box-shadow: var(--shadow-xl);
}

.braille-overlay.active {
  display: block;
  animation: slideInRight 0.4s ease;
}

.braille-overlay p {
  margin: 0;
  word-break: break-word;
}

/* Current Language Indicator */
.current-language {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: inline-block;
  font-size: var(--text-base);
  animation: fadeInUp 0.8s ease 0.5s backwards;
}

.current-language strong {
  color: var(--accent-light);
  font-weight: 700;
}

/* Language transition effect */
[data-i18n] {
  transition: opacity 0.3s ease;
}

body.translating [data-i18n] {
  opacity: 0.5;
}

/* ===================================
   REDUCED MOTION
   =================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-arrow {
    animation: none;
  }
  
  .floating-card {
    animation: none;
  }
}