/* ================================================================
   VARIABLES CSS Y CONFIGURACIÓN BASE
================================================================ */

:root {
  /* Gradientes principales */
  --primary-gradient: linear-gradient(135deg, #f59e0b 0%, #3b82f6 100%);
  --secondary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);

  /* Efectos de iluminación */
  --border-glow: 0 0 20px rgba(59, 130, 246, 0.3);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Transiciones estándar */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

/* Configuración base */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  min-height: 100vh;
  transition: all var(--transition-normal);
}

/* ================================================================
   MODO CLARO - FUNCIONAL Y COMPLETO
================================================================ */

body.light-theme {
  background: linear-gradient(
    135deg,
    #f8fafc 0%,
    #e0e7ff 50%,
    #dbeafe 100%
  ) !important;
  color: #1e293b !important;
}

/* Headers en modo claro */
.light-theme header {
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(16px);
  border-color: rgba(59, 130, 246, 0.2) !important;
}

.light-theme #sidebar {
  background: rgba(255, 255, 255, 0.8) !important;
  border-color: rgba(59, 130, 246, 0.2) !important;
}

/* Texto en modo claro */
.light-theme .text-slate-300,
.light-theme .text-slate-400,
.light-theme .text-slate-500 {
  color: #64748b !important;
}

.light-theme .text-slate-200 {
  color: #475569 !important;
}

/* Items de navegación en modo claro */
.light-theme .nav-item {
  color: #475569 !important;
}

.light-theme .nav-item:hover {
  background: rgba(59, 130, 246, 0.1) !important;
  color: #1e40af !important;
}

.light-theme .nav-item.active {
  background: rgba(59, 130, 246, 0.15) !important;
  color: #1e40af !important;
  border-left-color: #3b82f6 !important;
}

/* Elementos de contenido en modo claro */
.light-theme .bg-slate-800,
.light-theme .bg-slate-800\/50,
.light-theme .bg-slate-800\/30,
.light-theme .category-card {
  background: rgba(248, 250, 252, 0.8) !important;
  color: #1e293b !important;
  border-color: rgba(226, 232, 240, 0.5) !important;
}

/* Contenido Prose en modo claro */
.light-theme .prose {
  color: #1e293b;
}

.light-theme .prose h1,
.light-theme .prose h2,
.light-theme .prose h3,
.light-theme .prose h4 {
  color: #1e293b !important;
  background: linear-gradient(90deg, #f59e0b 0%, #3b82f6 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
}

.light-theme .prose code {
  background: #f1f5f9 !important;
  color: #3730a3 !important;
  border: 1px solid #e2e8f0;
}

.light-theme .prose pre {
  background: #f8fafc !important;
  color: #1e293b !important;
  border: 1px solid #cbd5e1 !important;
}

.light-theme .prose blockquote {
  background: #f0f9ff !important;
  color: #0f172a !important;
  border-left: 4px solid #3b82f6 !important;
}

/* ================================================================
   SCROLLBAR PERSONALIZADO
================================================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #3b82f6 0%, #6366f1 100%);
  border-radius: 4px;
  transition: all var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #2563eb 0%, #5b21b6 100%);
  box-shadow: var(--border-glow);
}

/* Scrollbar para modo claro */
.light-theme ::-webkit-scrollbar-track {
  background: rgba(241, 245, 249, 0.8);
}

/* ================================================================
   ANIMACIONES Y KEYFRAMES
================================================================ */

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

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.6),
      0 0 30px rgba(59, 130, 246, 0.3);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}
.animate-slide-down {
  animation: slideDown var(--transition-normal);
}
.animate-shimmer {
  animation: shimmer 2s infinite;
}
.animate-pulse-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

/* ================================================================
   NAVEGACIÓN - ITEMS MEJORADOS Y FUNCIONALES
================================================================ */

.nav-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  border-radius: 12px;
  color: #cbd5e1;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* Efecto shimmer al hacer hover */
.nav-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(59, 130, 246, 0.1),
    transparent
  );
  transition: left var(--transition-slow);
  z-index: 0;
}

.nav-item:hover::before {
  left: 100%;
}

/* Estado activo */
.nav-item.active {
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.2) 0%,
    rgba(99, 102, 241, 0.2) 100%
  );
  border-left: 4px solid #3b82f6;
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.nav-item.active i {
  color: #60a5fa;
  transform: scale(1.1);
  filter: drop-shadow(0 0 8px rgba(96, 165, 250, 0.5));
}

/* Hover */
.nav-item:hover {
  background: rgba(59, 130, 246, 0.15);
  transform: translateX(2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
  color: #93c5fd;
}

.nav-item:hover i {
  transform: scale(1.05);
}

.nav-item i {
  width: 1.25rem;
  text-align: center;
  margin-right: 0.75rem;
  transition: all var(--transition-normal);
  position: relative;
  z-index: 1;
}

.nav-item > div {
  position: relative;
  z-index: 1;
}

/* ================================================================
   PROSE - CONTENIDO MARKDOWN MEJORADO
================================================================ */

.prose {
  font-family: "Inter", system-ui, sans-serif;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #e2e8f0;
  max-width: none;
}

/* Títulos con gradientes */
.prose h1,
.prose h2,
.prose h3,
.prose h4 {
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #f59e0b 0%, #3b82f6 50%, #8b5cf6 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 2.5em;
  margin-bottom: 1em;
  position: relative;
  scroll-margin-top: 100px;
}

.prose h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}
.prose h2 {
  font-size: 2rem;
  line-height: 1.3;
}
.prose h3 {
  font-size: 1.5rem;
  line-height: 1.4;
}
.prose h4 {
  font-size: 1.25rem;
  line-height: 1.5;
}

/* Líneas decorativas bajo títulos */
.prose h1::after,
.prose h2::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

.prose h3::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--secondary-gradient);
  border-radius: 1px;
}

/* Párrafos y texto */
.prose p {
  margin-bottom: 1.5em;
  line-height: 1.8;
}

.prose strong {
  color: #f8fafc;
  font-weight: 700;
}

/* Enlaces con efectos hover */
.prose a {
  color: #38bdf8;
  text-decoration: none;
  position: relative;
  transition: all var(--transition-normal);
  background: linear-gradient(135deg, #38bdf8 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 500;
}

.prose a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #38bdf8 0%, #3b82f6 100%);
  transition: width var(--transition-normal);
}

.prose a:hover::after {
  width: 100%;
}

/* Código inline */
.prose code {
  background: linear-gradient(135deg, #1e293b 0%, #374151 100%);
  color: #7dd3fc;
  padding: 0.25em 0.6em;
  border-radius: 8px;
  font-size: 0.9em;
  font-family: "Fira Code", "SF Mono", "Monaco", monospace;
  border: 1px solid rgba(59, 130, 246, 0.2);
  font-weight: 500;
}

/* Bloques de código */
.prose pre {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 16px;
  padding: 1.5em;
  font-size: 0.95em;
  overflow-x: auto;
  margin: 2em 0;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: #e2e8f0;
}

/* Blockquotes */
.prose blockquote {
  border-left: 4px solid #3b82f6;
  background: linear-gradient(
    135deg,
    rgba(30, 41, 59, 0.8) 0%,
    rgba(51, 65, 85, 0.4) 100%
  );
  color: #a5b4fc;
  padding: 1.5em 2em;
  border-radius: 12px;
  margin: 2em 0;
  font-style: italic;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Listas */
.prose ul,
.prose ol {
  padding-left: 2em;
  margin-bottom: 1.2em;
}

.prose li {
  margin-bottom: 0.4em;
  line-height: 1.7;
}

/* Tablas */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5em;
}

.prose th,
.prose td {
  border: 1px solid #334155;
  padding: 0.6em 1em;
  text-align: left;
}

.prose th {
  background: #334155;
  color: #fbbf24;
}

.prose img {
  max-width: 100%;
  border-radius: 0.7em;
  margin: 1em 0;
  box-shadow: 0 2px 16px 0 rgba(0, 0, 0, 0.1);
}

/* ================================================================
   BOTONES CON EFECTOS PREMIUM
================================================================ */

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background: linear-gradient(135deg, #475569 0%, #64748b 100%);
  color: #f8fafc;
  box-shadow: 0 4px 15px rgba(71, 85, 105, 0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(71, 85, 105, 0.4);
}

/* ================================================================
   CARRUSEL DE IMÁGENES - COMPLETAMENTE FUNCIONAL
================================================================ */

.carrusel-container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1rem;
}

.carrusel-wrapper {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.carrusel-imagenes {
  position: relative;
  height: 350px;
}

.imagen-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  object-fit: contain; /* ← SOLUCIÓN: Mantiene proporciones */
  object-position: center;
  background: rgba(0, 0, 0, 0.1); /* Fondo sutil para espacios vacíos */
}

.imagen-slide.active {
  opacity: 1;
}

.imagen-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* ← SOLUCIÓN: Mantiene proporciones */
  object-position: center;
  background: rgba(0, 0, 0, 0.1); /* Fondo sutil para espacios vacíos */
}

.imagen-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: 2rem 1rem 1rem;
  font-size: 0.9rem;
  text-align: center;
}

.carrusel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border: none;
  padding: 1rem;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  font-size: 1.2rem;
}

.carrusel-btn:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: translateY(-50%) scale(1.1);
}

.carrusel-btn.prev {
  left: 1rem;
}

.carrusel-btn.next {
  right: 1rem;
}

.carrusel-indicadores {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
}

.indicador {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: rgba(148, 163, 184, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
}

.indicador.active,
.indicador:hover {
  background: #3b82f6;
  transform: scale(1.2);
}

/* ================================================================
   BÚSQUEDA Y OVERLAY
================================================================ */

#searchOverlay {
  z-index: 9999;
}

#searchOverlay .bg-slate-800 {
  background: rgba(30, 41, 59, 0.95) !important;
  backdrop-filter: blur(16px);
}

#searchInput {
  font-size: 1.2rem;
  padding: 0.5rem 0;
}

#searchResults {
  max-height: 300px;
}

.search-result-item {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  background: rgba(51, 65, 85, 0.5);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-result-item:hover {
  background: rgba(59, 130, 246, 0.2);
  transform: translateX(4px);
}

/* ================================================================
   CARDS DE CATEGORÍAS - FLEX CORREGIDO PARA RESPONSIVE
================================================================ */

.category-card {
  display: flex;
  flex-direction: column;
  min-height: 300px; /* Altura mínima consistente */
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-card h3 {
  flex-shrink: 0; /* Título no se comprime */
}

.category-card .text-slate-400 {
  flex-shrink: 0; /* Número de capítulos no se comprime */
}

.category-card .text-sm {
  flex-grow: 1; /* La descripción ocupa el espacio disponible */
  display: flex;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.category-card button {
  margin-top: auto; /* Botón siempre al final */
  flex-shrink: 0;
  text-align: left;
  white-space: normal;
  overflow-wrap: break-word;
  line-height: 1.4;
  padding: 0.5rem 0;
}

/* ================================================================
   RESPONSIVE DESIGN - SIDEBAR DESPLEGABLE EN MÓVILES
================================================================ */

@media (max-width: 480px) {
  /* Sidebar móvil desplegable */
  #sidebar {
    position: fixed;
    left: -320px;
    top: 64px;
    height: calc(100vh - 64px);
    width: 320px;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 50;
    box-shadow: var(--shadow-xl);
  }

  #sidebar.open {
    left: 0;
  }

  /* Contenido principal en móvil */
  main {
    padding: 1rem;
  }

  /* Tipografía responsive */
  .prose {
    font-size: 1rem;
  }

  .prose h1 {
    font-size: 2rem;
  }
  .prose h2 {
    font-size: 1.75rem;
  }
  .prose h3 {
    font-size: 1.5rem;
  }

  /* Carrusel responsive */
  .carrusel-imagenes {
    height: 220px;
  }

  .carrusel-btn {
    padding: 0.75rem;
    font-size: 1rem;
  }

  .imagen-caption {
    font-size: 0.8rem;
    padding: 1.5rem 0.75rem 0.75rem;
  }

  /* Grid responsive */
  .grid.md\\:grid-cols-3 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* Cards responsive mejoradas */
  .category-card {
    min-height: 260px;
  }

  .category-card .text-sm {
    font-size: 0.875rem;
    line-height: 1.5;
  }

  .category-card button {
    font-size: 0.8rem;
    margin-top: 1rem;
  }
}

@media (max-width: 480px) {
  /* Cards extra pequeñas */
  .category-card {
    min-height: 240px;
    padding: 1rem;
  }

  .category-card button {
    font-size: 0.75rem;
    line-height: 1.3;
  }

  .category-card .text-sm {
    font-size: 0.8rem;
  }

  /* Hero responsive */
  .text-5xl {
    font-size: 2.5rem !important;
    margin-bottom: 1.5rem !important; /* Aumentar separación del título */
    line-height: 1.1; /* Ajustar altura de línea para evitar solapamiento */
  }

  .text-xl {
    font-size: 1.1rem !important;
  }
}

/* ================================================================
   UTILIDADES Y ESTADOS
================================================================ */

.hidden {
  display: none !important;
}

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

/* Estado de carga */
.spinner {
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-radius: 50%;
  border-top: 3px solid #3b82f6;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

/* Modo claro para carrusel */
.light-theme .imagen-caption {
  background: linear-gradient(transparent, rgba(255, 255, 255, 0.9));
  color: #1e293b;
}

.light-theme .carrusel-btn {
  background: rgba(255, 255, 255, 0.8);
  color: #1e293b;
}

.light-theme .carrusel-btn:hover {
  background: rgba(255, 255, 255, 0.95);
}

.light-theme .indicador {
  background: rgba(71, 85, 105, 0.3);
}

/* Focus states para accesibilidad */
button:focus,
input:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Overlay para móvil */
.sidebar-overlay {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 30;
}

/* Estilos para impresión */
@media print {
  .no-print {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .prose {
    color: black !important;
  }
}

/* Mejoras adicionales para el flex en cards */
.category-card:hover {
  transform: translateY(-2px);
}

.category-card .w-12 {
  flex-shrink: 0;
}

/* Asegurar que el texto no se desborde */
.category-card * {
  word-wrap: break-word;
  overflow-wrap: break-word;
}