/* ==========================================================================
   ESTILOS PREMIUM - WEB E-READER MINIMALISTA
   Hecho por Aitecnic para "El Camino del Destino"
   ========================================================================== */

/* Importación de tipografías premium desde Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Inter:wght@300;400;500;600;700&family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Playfair+Display:ital,wght@0,500;0,600;0,700;1,400&display=swap');

/* ==========================================================================
   VARIABLES DE DISEÑO Y TEMAS
   ========================================================================== */
:root {
  /* Tema Predeterminado: Crema Elegante (Papel Editorial) */
  --bg-color: #faf6ee;
  --bg-rgb: 250, 246, 238;
  --text-color: #2a2825;
  --text-secondary: #6b665e;
  --accent-color: #8b5cf6;       /* Violeta Real */
  --accent-light: #ddd6fe;
  --accent-hover: #7c3aed;
  --accent-glow: rgba(139, 92, 246, 0.25);
  --border-color: rgba(42, 40, 37, 0.08);
  --card-bg: rgba(255, 255, 255, 0.5);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 12px 32px rgba(42, 40, 37, 0.08);
  --shadow-lg: 0 20px 48px rgba(42, 40, 37, 0.12);
  
  /* Fuentes */
  --font-serif: 'Lora', 'Merriweather', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Cinzel', 'Playfair Display', serif;
  --font-ui: 'Inter', sans-serif;
  
  /* Layout y Lectura */
  --reader-width: 68ch;
  --reader-font-size: 1.2rem;
  --reader-line-height: 1.8;
  --header-height: 70px;
  
  /* Transiciones */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* Tema Noche Profunda (Oscuro Sofisticado) */
body.theme-dark {
  --bg-color: #0e0f12;
  --bg-rgb: 14, 15, 18;
  --text-color: #e2e4e9;
  --text-secondary: #9ba1ad;
  --accent-color: #a78bfa;
  --accent-light: #4c1d95;
  --accent-hover: #c4b5fd;
  --accent-glow: rgba(167, 139, 250, 0.35);
  --border-color: rgba(226, 228, 233, 0.08);
  --card-bg: rgba(22, 24, 30, 0.6);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.5);
}

/* Tema Día Limpio (Blanco Puro) */
body.theme-white {
  --bg-color: #ffffff;
  --bg-rgb: 255, 255, 255;
  --text-color: #1a1a1a;
  --text-secondary: #666666;
  --accent-color: #6d28d9;
  --accent-light: #ede9fe;
  --accent-hover: #5b21b6;
  --accent-glow: rgba(109, 40, 217, 0.2);
  --border-color: rgba(0, 0, 0, 0.08);
  --card-bg: rgba(248, 250, 252, 0.7);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.08);
}

/* Niveles de tamaño de fuente del lector */
body.size-1 { --reader-font-size: 1.05rem; }
body.size-2 { --reader-font-size: 1.2rem; }
body.size-3 { --reader-font-size: 1.35rem; }
body.size-4 { --reader-font-size: 1.5rem; }
body.size-5 { --reader-font-size: 1.65rem; }

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-sans);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background-color 0.5s ease, color 0.5s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  color: var(--accent-hover);
}

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

/* ==========================================================================
   DISEÑO ESTRUCTURAL (SPA VIEWS)
   ========================================================================== */
.view-section {
  display: none;
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  flex: 1;
}

.view-section.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   1. VISTA DE INICIO (HOME)
   ========================================================================== */
.home-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  min-height: calc(100vh - 140px);
}

@media (max-width: 968px) {
  .home-container {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 40px 20px;
    text-align: center;
  }
}

.home-cover-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.home-cover-card {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 2 / 3;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 30px 60px rgba(0, 0, 0, 0.15);
  transform: rotateY(-8deg) rotateX(5deg);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s ease;
  position: relative;
  background-color: var(--card-bg);
}

.home-cover-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 15px;
  height: 100%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 100%);
  z-index: 2;
}

.home-cover-card:hover {
  transform: rotateY(0deg) rotateX(0deg) scale(1.03);
  box-shadow: var(--shadow-lg), 0 40px 80px var(--accent-glow);
}

.home-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.home-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

@media (max-width: 968px) {
  .home-info {
    align-items: center;
  }
}

.book-badge {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-color);
  padding: 6px 16px;
  background-color: var(--accent-light);
  border-radius: 30px;
  align-self: flex-start;
  transition: var(--transition-smooth);
}

body.theme-dark .book-badge {
  background-color: rgba(167, 139, 250, 0.15);
}

@media (max-width: 968px) {
  .book-badge {
    align-self: center;
  }
}

.book-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  line-height: 1.15;
  font-weight: 700;
  color: var(--text-color);
}

@media (max-width: 640px) {
  .book-title {
    font-size: 2.5rem;
  }
}

.book-author {
  font-family: var(--font-ui);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-top: -12px;
}

.book-synopsis {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 540px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 36px;
  background-color: var(--accent-color);
  color: #ffffff !important;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: var(--transition-smooth);
  width: fit-content;
  border: 1px solid transparent;
}

.cta-button:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.cta-button svg {
  transition: transform 0.3s ease;
}

.cta-button:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   2. BARRA DE CABECERA Y LECTURA (READER NAV & BAR)
   ========================================================================== */
.reader-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(var(--bg-rgb), 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  transition: background-color 0.5s ease, border-bottom 0.5s ease;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-header {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  color: var(--text-color);
  transition: var(--transition-smooth);
}

.btn-header:hover {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.reader-book-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 250px;
}

@media (max-width: 640px) {
  .reader-book-title {
    display: none;
  }
}

/* Barra de Progreso de Lectura */
.progress-container {
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--border-color);
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-color) 0%, #a855f7 100%);
  transition: width 0.1s ease;
}

/* Panel de Ajustes del E-Reader */
.reader-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.controls-dropdown {
  position: relative;
}

.controls-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 320px;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 24px;
  display: none;
  flex-direction: column;
  gap: 20px;
  z-index: 110;
  transform: translateY(10px);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.controls-dropdown.open .controls-menu {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

/* Ajustes de Tema */
.theme-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.btn-theme {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-color);
  background-color: var(--card-bg);
}

.btn-theme.active {
  border-color: var(--accent-color);
  background-color: var(--accent-light);
  color: var(--accent-color);
}

body.theme-dark .btn-theme.active {
  background-color: rgba(167, 139, 250, 0.15);
}

.theme-preview {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.theme-preview.preview-cream { background-color: #faf6ee; }
.theme-preview.preview-dark { background-color: #0e0f12; }
.theme-preview.preview-white { background-color: #ffffff; }

/* Ajustes de Tamaño */
.size-selector {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  background-color: var(--card-bg);
}

.btn-size {
  flex: 1;
  padding: 10px;
  text-align: center;
  font-weight: 600;
  color: var(--text-color);
}

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

.size-display {
  flex: 1.5;
  text-align: center;
  font-size: 0.85rem;
  font-family: var(--font-ui);
  border-left: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  color: var(--text-secondary);
}

/* Ajustes de Tipografía */
.font-selector {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.btn-font-switch {
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-color);
  background-color: var(--card-bg);
}

.btn-font-switch.active {
  border-color: var(--accent-color);
  color: var(--accent-color);
  font-weight: 600;
}

.font-serif-preview { font-family: var(--font-serif); }
.font-sans-preview { font-family: var(--font-sans); }

/* ==========================================================================
   3. AREA DE CONTENIDO DE LECTURA (READER BODY)
   ========================================================================== */
.reader-container {
  width: 100%;
  max-width: var(--reader-width);
  margin: 0 auto;
  padding: 60px 24px 80px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

@media (max-width: 640px) {
  .reader-container {
    padding-top: 40px;
    padding-bottom: 60px;
    padding-left: 18px;
    padding-right: 18px;
  }
}

/* Cabecera del Capítulo */
.chapter-header-area {
  margin-bottom: 48px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 32px;
}

.chapter-title-top {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-color);
  margin-bottom: 12px;
}

.chapter-subtitle-top {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-secondary);
}

/* Cuerpo del Capítulo */
.reader-content {
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
  color: var(--text-color);
  text-align: justify;
  transition: font-size 0.3s ease;
}

/* Estilos de alineamiento óptimo para lectura digital en móviles */
@media (max-width: 640px) {
  .reader-content {
    text-align: left; /* En pantallas pequeñas es más cómodo la alineación izquierda */
  }
}

.reader-content p {
  margin-bottom: 1.7em;
  text-indent: 0;
}

/* La primera letra de un capítulo es gigante y hermosa (Drop Cap) */
.drop-cap {
  font-family: var(--font-display);
  font-size: 4em;
  line-height: 0.85;
  float: left;
  margin-top: 0.1em;
  margin-right: 0.1em;
  padding-right: 0.05em;
  font-weight: 700;
  color: var(--accent-color);
}

/* Estructura para Citas / Epígrafes */
.epigraph {
  margin: 0 auto 36px auto;
  max-width: 85%;
}

.reader-content blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1em;
  line-height: 1.6;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent-color);
  padding-left: 20px;
  margin: 32px 0;
}

.reader-content blockquote cite {
  display: block;
  font-family: var(--font-ui);
  font-style: normal;
  font-size: 0.8em;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 8px;
  color: var(--text-secondary);
}

.reader-content h3 {
  font-family: var(--font-display);
  font-size: 1.4em;
  margin-top: 2em;
  margin-bottom: 0.8em;
  color: var(--text-color);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   4. NAVEGACIÓN ENTRE CAPÍTULOS (NEXT/PREV)
   ========================================================================== */
.chapter-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 60px;
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
}

@media (max-width: 480px) {
  .chapter-navigation {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.btn-nav-chapter {
  display: flex;
  flex-direction: column;
  padding: 20px 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  text-align: left;
  transition: var(--transition-smooth);
}

.btn-nav-chapter.next {
  text-align: right;
  align-items: flex-end;
}

.btn-nav-chapter:hover {
  border-color: var(--accent-color);
  background-color: var(--bg-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-nav-chapter.disabled {
  opacity: 0.4;
  pointer-events: none;
  cursor: not-allowed;
}

.nav-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.nav-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* ==========================================================================
   5. MENU DE ÍNDICE DINÁMICO (DRAWER)
   ========================================================================== */
.index-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.index-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.index-drawer {
  position: fixed;
  top: 0;
  left: -380px;
  width: 380px;
  max-width: 100%;
  height: 100vh;
  background-color: var(--bg-color);
  box-shadow: var(--shadow-lg);
  z-index: 160;
  display: flex;
  flex-direction: column;
  transition: left 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 480px) {
  .index-drawer {
    left: -100%;
    width: 100%;
  }
}

.index-drawer.open {
  left: 0;
}

.drawer-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-color);
}

.btn-close-drawer {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

.btn-close-drawer:hover {
  background-color: var(--border-color);
}

.drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.index-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.index-item {
  width: 100%;
}

.index-link {
  display: flex;
  flex-direction: column;
  padding: 14px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  text-align: left;
  transition: var(--transition-fast);
}

.index-link:hover {
  background-color: var(--card-bg);
  border-color: var(--border-color);
}

.index-link.active {
  background-color: var(--accent-light);
  border-color: transparent;
}

body.theme-dark .index-link.active {
  background-color: rgba(167, 139, 250, 0.15);
}

.index-link.active .index-chapter-title {
  color: var(--accent-color);
  font-weight: 600;
}

.index-chapter-num {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.index-chapter-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--text-color);
  transition: var(--transition-fast);
}

/* ==========================================================================
   6. VISTA DE CIERRE (BACK COVER / CREDITS)
   ========================================================================== */
.closing-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
  min-height: calc(100vh - 140px);
}

@media (max-width: 968px) {
  .closing-container {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 40px 20px;
    text-align: center;
  }
}

.closing-cover-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.closing-cover-card {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 2 / 3;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 30px 60px rgba(0, 0, 0, 0.15);
  transform: rotateY(8deg) rotateX(5deg); /* Rotación opuesta a la portada */
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s ease;
  position: relative;
  background-color: var(--card-bg);
}

.closing-cover-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0; /* Lomo virtual al lado derecho para la contraportada */
  width: 15px;
  height: 100%;
  background: linear-gradient(270deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 100%);
  z-index: 2;
}

.closing-cover-card:hover {
  transform: rotateY(0deg) rotateX(0deg) scale(1.03);
  box-shadow: var(--shadow-lg), 0 40px 80px var(--accent-glow);
}

.closing-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.closing-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

@media (max-width: 968px) {
  .closing-info {
    align-items: center;
  }
}

.closing-section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-color);
}

.closing-description {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 580px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 500px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  transition: var(--transition-fast);
}

.contact-item:hover {
  border-color: var(--accent-color);
  transform: translateX(4px);
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--accent-light);
  color: var(--accent-color);
}

body.theme-dark .contact-icon {
  background-color: rgba(167, 139, 250, 0.15);
}

.contact-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.contact-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.contact-value {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-color);
}

/* ==========================================================================
   7. PIE DE PÁGINA (FOOTER Y CRÉDITOS A AITECNIC)
   ========================================================================== */
.main-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border-color);
  text-align: center;
  background-color: rgba(var(--bg-rgb), 0.5);
  transition: background-color 0.5s ease, border-top 0.5s ease;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-text {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Crédito destacado y sumamente elegante a Aitecnic */
.aitecnic-credit {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 20px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.aitecnic-credit a {
  font-weight: 700;
  color: var(--text-color);
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
}

.aitecnic-credit a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), #a855f7);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.aitecnic-credit:hover {
  transform: translateY(-2px);
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.aitecnic-credit:hover a {
  color: var(--accent-color);
}

.aitecnic-credit:hover a::after {
  transform: scaleX(1);
  transform-origin: left;
}

.aitecnic-heart {
  color: #ef4444;
  display: inline-block;
  animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   ELEMENTOS ADICIONALES Y UTILIDADES DE DISEÑO
   ========================================================================== */
.floating-index-trigger {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--accent-color);
  color: #ffffff;
  box-shadow: 0 8px 24px var(--accent-glow);
  transition: var(--transition-smooth);
}

.floating-index-trigger:hover {
  background-color: var(--accent-hover);
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 32px var(--accent-glow);
}

.hidden {
  display: none !important;
}

/* Tarjeta de Próximamente (Placeholders de Capítulos) */
.coming-soon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 48px 32px;
  border-radius: 16px;
  border: 1px dashed var(--border-color);
  background-color: var(--card-bg);
  box-shadow: var(--shadow-sm);
  margin: 40px auto;
  max-width: 580px;
}

.coming-soon-badge {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-color);
  background-color: var(--accent-light);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 20px;
}

body.theme-dark .coming-soon-badge {
  background-color: rgba(167, 139, 250, 0.15);
}

.coming-soon-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-top: 0;
  margin-bottom: 12px;
}

.coming-soon-card p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.coming-soon-note {
  font-size: 0.9rem !important;
  font-style: italic;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  margin-top: 8px;
  width: 100%;
}

/* Bloque de Consejo Editorial (Callout) */
.editorial-advice {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-color);
  border-radius: 12px;
  padding: 24px 30px;
  margin: 48px auto;
  max-width: 90%;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.editorial-advice:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.editorial-advice-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-color);
  margin-top: 0;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.editorial-advice-content {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  font-style: italic;
  color: var(--text-secondary);
  margin: 0;
}

/* Bloque de Meditación Editorial (Callout Oro) */
.editorial-meditation {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-left: 4px solid #f59e0b; /* Oro / Ámbar */
  border-radius: 12px;
  padding: 24px 30px;
  margin: 48px auto;
  max-width: 90%;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.editorial-meditation:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.editorial-meditation-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #d97706;
  margin-top: 0;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

body.theme-dark .editorial-meditation-title {
  color: #fbbf24;
}

body.theme-dark .editorial-meditation {
  border-left-color: #fbbf24;
}

.editorial-meditation-content {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  font-style: italic;
  color: var(--text-secondary);
  margin: 0;
}