/* ===== LENGUAJE MEDIA - SISTEMA DE DISEÑO PREMIUM ===== */
/* Autor: Profesor Francisco Conuva */
/* Fecha: Noviembre 2025 */
/* Objetivo: Elevar calidad visual al nivel de Matemática Media */

/* ===== VARIABLES CSS ===== */
:root {
  /* Colores por Dominio */
  --color-literario: #6f42c1;
  --color-literario-light: #e7d9ff;
  --color-literario-dark: #4a2c7d;
  
  --color-no-literario: #0d6efd;
  --color-no-literario-light: #cfe2ff;
  --color-no-literario-dark: #084298;
  
  --color-coherencia: #198754;
  --color-coherencia-light: #d1e7dd;
  --color-coherencia-dark: #0a3622;
  
  --color-adecuacion: #20c997;
  --color-adecuacion-light: #d1f4ea;
  --color-adecuacion-dark: #0c5e49;
  
  --color-pedagogia: #fd7e14;
  --color-pedagogia-light: #ffe5d0;
  --color-pedagogia-dark: #984c0c;
  
  --color-casos: #dc3545;
  --color-casos-light: #f8d7da;
  --color-casos-dark: #721c24;
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-literario: linear-gradient(135deg, #6f42c1 0%, #4a2c7d 100%);
  --gradient-no-literario: linear-gradient(135deg, #0d6efd 0%, #084298 100%);
  --gradient-coherencia: linear-gradient(135deg, #198754 0%, #0a3622 100%);
  --gradient-adecuacion: linear-gradient(135deg, #20c997 0%, #0c5e49 100%);
  --gradient-pedagogia: linear-gradient(135deg, #fd7e14 0%, #984c0c 100%);
  --gradient-casos: linear-gradient(135deg, #dc3545 0%, #721c24 100%);
  
  /* Sombras */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.20);
  
  /* Bordes */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  
  /* Transiciones */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Espaciado */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  color: #2d3748;
  background-color: #f7fafc;
}

/* ===== CARDS PREMIUM ===== */
.card-premium {
  border: none;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  overflow: hidden;
  background: white;
}

.card-premium:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-premium.hover-lift:hover {
  transform: translateY(-8px) scale(1.02);
}

.card-header-gradient {
  background: var(--gradient-primary);
  border: none;
  padding: 1.5rem;
  color: white;
}

.card-header-literario {
  background: var(--gradient-literario);
  color: white;
}

.card-header-no-literario {
  background: var(--gradient-no-literario);
  color: white;
}

.card-header-coherencia {
  background: var(--gradient-coherencia);
  color: white;
}

.card-header-adecuacion {
  background: var(--gradient-adecuacion);
  color: white;
}

.card-header-pedagogia {
  background: var(--gradient-pedagogia);
  color: white;
}

.card-header-casos {
  background: var(--gradient-casos);
  color: white;
}

/* ===== TABLAS ESTILIZADAS ===== */
.table-premium {
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
}

.table-premium thead {
  background: var(--gradient-primary);
  color: white;
}

.table-premium thead th {
  border: none;
  padding: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

.table-premium tbody tr {
  transition: var(--transition-smooth);
}

.table-premium tbody tr:nth-child(even) {
  background-color: #f8f9fa;
}

.table-premium tbody tr:hover {
  background-color: #e9ecef;
  transform: scale(1.01);
}

.table-premium tbody td {
  padding: 0.875rem 1rem;
  border-color: #e2e8f0;
  vertical-align: middle;
}

/* ===== ACORDEONES MEJORADOS ===== */
.accordion-premium .accordion-item {
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--border-radius-sm) !important;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  overflow: hidden;
}

.accordion-premium .accordion-item:hover {
  box-shadow: var(--shadow-md);
}

.accordion-premium .accordion-button {
  font-weight: 600;
  background-color: #f8f9fa;
  border-radius: var(--border-radius-sm) !important;
  padding: 1rem 1.25rem;
  transition: var(--transition-smooth);
}

.accordion-premium .accordion-button:not(.collapsed) {
  background: var(--gradient-primary);
  color: white;
  box-shadow: none;
}

.accordion-premium .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
  border-color: transparent;
}

.accordion-premium .accordion-body {
  padding: 1.5rem;
  background: white;
}

/* ===== BADGES MEJORADOS ===== */
.badge-xl {
  font-size: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-weight: 600;
}

.badge-lg {
  font-size: 0.875rem;
  padding: 0.4rem 0.8rem;
  border-radius: 50px;
}

.badge-outline {
  border: 2px solid currentColor;
  background: transparent;
  font-weight: 600;
}

.badge-gradient {
  background: var(--gradient-primary);
  border: none;
  color: white;
}

/* ===== BOTONES PREMIUM ===== */
.btn-premium {
  font-weight: 600;
  border-radius: 50px;
  padding: 0.75rem 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
}

.btn-premium:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-premium:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

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

.btn-gradient-primary:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
  color: white;
}

/* ===== ALERTS CON ICONOS ===== */
.alert-icon {
  display: flex;
  align-items: start;
  border-radius: var(--border-radius-md);
  border-left: 4px solid;
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-sm);
}

.alert-icon i {
  font-size: 1.5rem;
  margin-right: 1rem;
  flex-shrink: 0;
}

.alert-info.alert-icon {
  border-left-color: #0dcaf0;
  background-color: #cff4fc;
}

.alert-success.alert-icon {
  border-left-color: #198754;
  background-color: #d1e7dd;
}

.alert-warning.alert-icon {
  border-left-color: #ffc107;
  background-color: #fff3cd;
}

.alert-danger.alert-icon {
  border-left-color: #dc3545;
  background-color: #f8d7da;
}

/* ===== BREADCRUMBS MEJORADOS ===== */
.breadcrumb-premium {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: var(--border-radius-sm);
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
}

.breadcrumb-premium .breadcrumb-item {
  font-weight: 500;
  font-size: 0.875rem;
}

.breadcrumb-premium .breadcrumb-item a {
  color: #4a5568;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.breadcrumb-premium .breadcrumb-item a:hover {
  color: #2d3748;
  text-decoration: underline;
}

.breadcrumb-premium .breadcrumb-item.active {
  color: #1a202c;
  font-weight: 600;
}

/* ===== SECCIÓN HEADER ===== */
.section-header {
  background: var(--gradient-primary);
  color: white;
  padding: 3rem 0;
  margin-bottom: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.section-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.section-header > * {
  position: relative;
  z-index: 1;
}

/* ===== STATS CARDS ===== */
.stat-card {
  text-align: center;
  padding: 2rem;
  border-radius: var(--border-radius-md);
  background: white;
  box-shadow: var(--shadow-md);
  transition: var(--transition-bounce);
  border: 1px solid rgba(0,0,0,0.05);
}

.stat-card:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: var(--shadow-xl);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #6c757d;
  font-weight: 600;
}

/* ===== EJEMPLOS CON SINTAXIS ===== */
.ejemplo-box {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-left: 4px solid var(--color-literario);
  padding: 1.5rem;
  border-radius: var(--border-radius-sm);
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.ejemplo-box:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.ejemplo-numero {
  display: inline-block;
  background: var(--gradient-primary);
  color: white;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  border-radius: 50%;
  font-weight: 700;
  margin-right: 0.5rem;
  box-shadow: var(--shadow-sm);
}

/* ===== ICONOS MEJORADOS ===== */
.icon-circle {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
}

.icon-circle:hover {
  transform: rotate(5deg) scale(1.1);
  box-shadow: var(--shadow-lg);
}

.icon-circle i {
  color: white;
  font-size: 1.5rem;
}

/* ===== NAVEGACIÓN FLOTANTE ===== */
.nav-floating {
  position: sticky;
  top: 80px;
  z-index: 100;
}

.nav-floating .nav-link {
  color: #4a5568;
  padding: 0.75rem 1rem;
  border-left: 3px solid transparent;
  transition: var(--transition-smooth);
  font-weight: 500;
}

.nav-floating .nav-link:hover {
  background-color: #f7fafc;
  border-left-color: var(--color-literario);
  color: var(--color-literario);
}

.nav-floating .nav-link.active {
  background: linear-gradient(90deg, rgba(102, 126, 234, 0.1) 0%, transparent 100%);
  border-left-color: var(--color-literario);
  color: var(--color-literario);
  font-weight: 600;
}

/* ===== PROGRESS BAR DE LECTURA ===== */
.progress-reading {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: var(--gradient-primary);
  z-index: 9999;
  transition: width 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.5);
}

/* ===== TOOLTIPS PERSONALIZADOS ===== */
.tooltip-custom {
  font-size: 0.875rem;
  background: #1a202c;
  border-radius: var(--border-radius-sm);
  padding: 0.5rem 0.75rem;
  box-shadow: var(--shadow-lg);
}

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

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-in {
  animation: slideIn 0.6s ease-out;
}

.bounce {
  animation: bounce 0.8s ease-in-out;
}

/* ===== SCROLL REVEAL ===== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== DIVIDERS ===== */
.divider-gradient {
  height: 4px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 2px;
  margin: 2rem 0;
  opacity: 0.3;
}

/* ===== MARK/HIGHLIGHT ===== */
mark {
  background: linear-gradient(120deg, #ffd54f 0%, #ffca28 100%);
  padding: 0.125rem 0.25rem;
  border-radius: 3px;
}

/* ===== BLOCKQUOTE MEJORADO ===== */
blockquote {
  border-left: 4px solid var(--color-literario);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-radius: var(--border-radius-sm);
  font-style: italic;
  color: #4a5568;
  box-shadow: var(--shadow-sm);
}

blockquote::before {
  content: '"';
  font-size: 3rem;
  color: var(--color-literario);
  opacity: 0.2;
  line-height: 0;
  margin-right: 0.5rem;
}

/* ===== CÓDIGO INLINE ===== */
code {
  background: #f1f5f9;
  color: #dc3545;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.875em;
  font-family: 'Fira Code', 'Monaco', monospace;
}

/* ===== LISTAS MEJORADAS ===== */
.list-premium {
  list-style: none;
  padding-left: 0;
}

.list-premium li {
  padding: 0.5rem 0;
  padding-left: 2rem;
  position: relative;
}

.list-premium li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-coherencia);
  font-weight: 700;
  width: 1.5rem;
  text-align: center;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .card-premium {
    margin-bottom: 1.5rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .section-header {
    padding: 2rem 1rem;
    border-radius: var(--border-radius-sm);
  }
  
  .table-premium {
    font-size: 0.875rem;
  }
  
  .breadcrumb-premium {
    padding: 0.75rem 1rem;
  }
  
  .btn-premium {
    padding: 0.625rem 1.5rem;
    font-size: 0.8125rem;
  }
  
  .badge-xl {
    font-size: 0.875rem;
    padding: 0.4rem 0.8rem;
  }
}

@media (max-width: 576px) {
  .stat-number {
    font-size: 1.75rem;
  }
  
  .stat-label {
    font-size: 0.75rem;
  }
  
  .icon-circle {
    width: 40px;
    height: 40px;
  }
  
  .icon-circle i {
    font-size: 1.25rem;
  }
}

/* ===== IMPRESIÓN ===== */
@media print {
  .btn-premium,
  .nav-floating,
  .progress-reading,
  .breadcrumb-premium {
    display: none !important;
  }
  
  .card-premium {
    box-shadow: none;
    border: 1px solid #dee2e6;
  }
  
  .section-header {
    background: white;
    color: black;
    border: 2px solid #000;
  }
  
  .table-premium {
    box-shadow: none;
  }
}

/* ===== ACCESIBILIDAD ===== */
.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 navegación por teclado */
*:focus-visible {
  outline: 3px solid rgba(102, 126, 234, 0.5);
  outline-offset: 2px;
}

/* ===== ELEMENTOS VISUALES PERSONALIZADOS ===== */

/* Pirámide visual */
.pyramid-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 800px;
  margin: 0 auto;
}

.pyramid-level {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin: 0 auto;
}

.pyramid-level:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2) !important;
}

/* Hover lift effect */
.hover-lift {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15) !important;
}

/* Icon circles */
.icon-circle {
  transition: all 0.3s ease;
}

.hover-lift:hover .icon-circle {
  transform: scale(1.1) rotate(5deg);
}

/* ===== DARK MODE (preparación) ===== */
@media (prefers-color-scheme: dark) {
  /* Variables dark mode se pueden agregar aquí */
}