/* ==========================================================================
   VISUALIZADOR BILATERAL E LEITURA (reader.css)
   ========================================================================== */

#app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  background: var(--bg-book);
  position: relative;
  overflow: hidden;
}

/* Cabeçalho Principal */
.app-header {
  height: 60px;
  flex-shrink: 0;
  background: var(--bg-sidebar);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 2px solid var(--accent-sertao);
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-title-box h1 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFF;
  line-height: 1.2;
}

.header-title-box p {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.75);
}

.header-center-controls {
  display: flex;
  align-items: center;
  gap: 15px;
}

/* Seletor Toggle de Ortografia (Modo Duplo) */
.toggle-mode-container {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 30px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.toggle-btn {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background: var(--accent-sertao);
  color: #FFF;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.toggle-btn:hover:not(.active) {
  color: #FFF;
}

/* Controles de Acessibilidade e Leitura */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  background: rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: #FFF;
}

/* Área de Leitura Principal (Split Screen Bilateral) */
.reader-workspace {
  flex: 1;
  display: flex;
  height: calc(100vh - var(--header-height) - 45px);
  overflow: hidden;
  position: relative;
}

/* Painel Esquerdo: Visualizador de Manuscrito */
.pane-manuscript {
  flex: 1;
  background: #181512;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-right: 2px solid var(--border-color);
}

.manuscript-toolbar {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(31, 78, 91, 0.85);
  backdrop-filter: blur(4px);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  display: flex;
  gap: 6px;
  z-index: 10;
}

.manuscript-viewer-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  user-select: none;
  overflow: auto;
}

.manuscript-viewer-container:active {
  cursor: grabbing;
}

.manuscript-img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  border-radius: 4px;
  transition: transform 0.1s ease-out;
}

/* Painel Direito: Transcrição Dinâmica em Estilo Livro Profissional */
.pane-transcription {
  flex: 1;
  background: var(--bg-book);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 45px 60px;
  position: relative;
}

.transcription-header {
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chapter-badge {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-sertao-hover);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.page-indicator {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--text-muted);
}

@keyframes fadeInPage {
  from { opacity: 0.3; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.transcription-content.page-changing {
  animation: fadeInPage 0.25s ease-out;
}

.transcription-content {
  font-family: var(--font-body);
  font-size: 1.15rem;
  line-height: 1.85;
  color: var(--text-main);
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

/* Tipografia Estilo Livro Impresso */
.transcription-content h1.book-title-header {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-header);
  text-align: center;
  margin-bottom: 12px;
}

.transcription-content h2.book-subtitle-header {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 25px;
}

.transcription-content h2.chapter-title-inside {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--accent-header);
  text-align: center;
  margin: 20px 0 25px 0;
  position: relative;
}

.transcription-content h2.chapter-title-inside::after {
  content: '✦';
  display: block;
  font-size: 0.9rem;
  color: var(--accent-sertao);
  margin-top: 8px;
}

.transcription-content h3.page-chapter-subhead {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--accent-header);
  margin-bottom: 20px;
  border-left: 3px solid var(--accent-sertao);
  padding-left: 12px;
}

.transcription-content p {
  margin-bottom: 1.2em;
  text-indent: 1.5em;
  text-align: justify;
}

.transcription-content p.paragraph-lead {
  text-indent: 0;
}

.transcription-content p.paragraph-lead::first-letter {
  font-family: var(--font-heading);
  font-size: 2.6em;
  float: left;
  line-height: 0.8;
  margin-right: 10px;
  margin-top: 4px;
  color: var(--accent-header);
  font-weight: 700;
}

.book-author-tag {
  text-align: center;
  font-family: var(--font-ui);
  font-size: 1rem;
  color: var(--accent-sertao-hover);
  margin-bottom: 15px;
}

.book-intro-quote {
  font-style: italic;
  text-align: center !important;
  text-indent: 0 !important;
  color: var(--text-muted);
  margin: 20px 0;
}

/* Marcação de Texto Dual-Mode */

/* Modo 1: Fidelidade Histórica (Original) */
body.mode-original .palavra-adaptada .texto-corrigido {
  display: none !important;
}

body.mode-original .palavra-adaptada .texto-original {
  display: inline !important;
}

body.mode-original .texto-complemento {
  display: none !important;
}

/* Modo 2: Leitura Fluida (Corrigida) */
body.mode-corrected .palavra-adaptada .texto-original {
  display: none !important;
}

body.mode-corrected .palavra-adaptada .texto-corrigido {
  display: inline !important;
  color: var(--correction-red);
  font-weight: 700;
  position: relative;
  cursor: help;
  border-bottom: 1.5px dotted var(--correction-red);
}

body.mode-corrected .texto-complemento {
  color: var(--correction-red);
  font-weight: 600;
}

/* Tooltip Hover no Modo Corrigido */
body.mode-corrected .palavra-adaptada:hover::after {
  content: 'Original à mão: "' attr(data-original) '"';
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-main);
  color: #FFF;
  padding: 6px 12px;
  border-radius: 4px;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  z-index: 100;
  pointer-events: none;
}

body.mode-corrected .palavra-adaptada:hover::before {
  content: '';
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: var(--text-main) transparent transparent transparent;
  z-index: 100;
}

/* Barra de Navegação Inferior (Footer Controls Fixos) */
.reader-footer {
  height: 55px;
  flex-shrink: 0;
  background: #15353E;
  border-top: 2px solid var(--accent-sertao);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  font-family: var(--font-ui);
  z-index: 100;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.2);
}

/* Setas Flutuantes Laterais de Navegação */
.floating-nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-sertao);
  color: #FFF;
  font-size: 1.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 99;
  border: 2px solid rgba(255,255,255,0.4);
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  transition: all var(--transition-fast);
}

.floating-nav-arrow:hover {
  background: var(--accent-sertao-hover);
  transform: translateY(-50%) scale(1.12);
}

.floating-nav-arrow.arrow-left {
  left: 25px;
}

.floating-nav-arrow.arrow-right {
  right: 25px;
}

/* Modo Apenas Texto (Oculta Manuscrito e Expande Texto) */
body.layout-text-only .pane-manuscript {
  display: none !important;
}

body.layout-text-only .pane-transcription {
  flex: 1 !important;
  width: 100% !important;
  height: 100% !important;
  padding: 40px 60px;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFF;
  background: var(--accent-sertao);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  z-index: 101;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: all var(--transition-fast);
}

.nav-btn:hover {
  background: var(--accent-sertao-hover);
  transform: translateY(-1px);
}

/* Responsividade Mobile - Oculta Imagem do Manuscrito em Telas Pequenas */
@media (max-width: 900px) {
  .app-header {
    padding: 0 10px;
    height: auto;
    min-height: 65px;
    flex-wrap: wrap;
    gap: 8px;
    padding-bottom: 8px;
  }

  .header-brand {
    gap: 8px;
  }

  .header-title-box h1 {
    font-size: 1rem;
  }

  .header-title-box p {
    font-size: 0.7rem;
  }

  .header-center-controls {
    width: 100%;
    order: 3;
    justify-content: space-between;
    gap: 8px;
  }

  .toggle-mode-container {
    flex: 1;
    justify-content: center;
  }

  .toggle-btn {
    padding: 5px 10px;
    font-size: 0.75rem;
  }

  .audio-player-widget {
    padding: 6px 10px;
    gap: 8px;
  }

  .audio-details {
    display: none;
  }

  /* Ocultar Manuscrito em Telas Móbile como Solicitado */
  .pane-manuscript {
    display: none !important;
  }
  
  /* Transcrição Ocupa 100% da Tela */
  .pane-transcription {
    flex: 1;
    width: 100%;
    height: 100%;
    padding: 25px 20px;
  }

  .transcription-content {
    font-size: 1.05rem;
    line-height: 1.8;
  }

  .user-badge span {
    display: none;
  }

  .reader-footer {
    padding: 0 10px;
  }

  .nav-btn {
    padding: 6px 8px;
    font-size: 0.78rem;
  }
}