/* ==========================================================================
   HOJA DE ESTILOS ESTILO JW.ORG - PWA BÍBLICA (TNM)
   ========================================================================== */

:root {
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Colores Púrpura Oficiales de JW.org */
    --jw-purple: #4a2c6d;
    --jw-purple-dark: #3a2254;
    --jw-purple-light: #5b3685;
    --jw-purple-bg-alpha: rgba(74, 44, 109, 0.08);
    
    --border-radius-sharp: 2px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
}

/* Variables del Tema Oscuro (Defecto) */
.theme-dark {
    --bg-base: #0f0d13;
    --bg-surface: #1e1b24;
    --bg-surface-card: #25222d;
    --border-color: #322e3d;
    --border-color-focus: #4a2c6d;
    
    --text-primary: #f5f5f7;
    --text-secondary: #a9a7b3;
    --text-muted: #6c6978;
    
    --book-bg: #322b3d;
    --book-bg-hover: #433952;
    --chapter-bg: #4c4a54;
    --chapter-bg-hover: #5d5b68;
    
    --link-color: #519aff;
    --accent: #fbbf24;
    
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.1);
}

/* Variables del Tema Claro */
.theme-light {
    --bg-base: #f4f3f6;
    --bg-surface: #ffffff;
    --bg-surface-card: #f9f9fb;
    --border-color: #e3e1e6;
    --border-color-focus: #4a2c6d;
    
    --text-primary: #111112;
    --text-secondary: #5f5d66;
    --text-muted: #9c9a9f;
    
    --book-bg: #ece9f0;
    --book-bg-hover: #dfdae8;
    --chapter-bg: #767676;
    --chapter-bg-hover: #555555;
    
    --link-color: #0056b3;
    --accent: #b45309;
    
    --danger: #dc2626;
    --danger-light: rgba(220, 38, 38, 0.08);
}

/* Reset Global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.playfair-font {
    font-family: 'Playfair Display', Georgia, serif;
}

/* Estructura del Layout (JW.org Style) */
.app-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* 1. Cabecera Principal Púrpura */
.app-header {
    background-color: var(--jw-purple);
    color: #ffffff;
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.app-branding {
    display: flex;
    flex-direction: column;
}

.app-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.app-subtitle {
    font-size: 0.8rem;
    opacity: 0.75;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-btn {
    background: none;
    border: none;
    color: #ffffff;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.header-btn:hover {
    background-color: rgba(255, 255, 255, 0.12);
}

.header-btn:active {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 2. Pestañas de Sub-Navegación Horizontal (Tabs) */
.sub-nav-tabs {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
    padding: 0 1.5rem;
    overflow-x: auto;
    flex-shrink: 0;
    scrollbar-width: none; /* Firefox */
}

.sub-nav-tabs::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.tab-item {
    background: none;
    border: none;
    padding: 0.9rem 1rem;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color var(--transition-fast);
}

.tab-item:hover {
    color: var(--text-primary);
}

.tab-item.active {
    color: var(--jw-purple);
    font-weight: 700;
}

.tab-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10%;
    width: 80%;
    height: 3px;
    background-color: var(--jw-purple);
    border-top-left-radius: 2px;
    border-top-right-radius: 2px;
}

/* 3. Área de Contenido Principal */
.content-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: 2rem 2.5rem;
    background-color: var(--bg-base);
}

/* Estilos de Vista (SPA) */
.app-view {
    display: none;
    animation: fadeIn 0.2s ease-out;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}

.app-view.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   VISTA: LIBROS (ESTILO JW.ORG - CUADRÍCULA DE DOBLE COLUMNA)
   ========================================================================== */
.books-directory-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2.5rem;
    width: 100%;
    align-items: start;
}

.bible-section-col {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.section-title-jw {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    letter-spacing: 0.5px;
}

/* Cuadrículas de libros */
.books-grid-jw {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 Columnas por defecto en Escrituras Hebreas */
    gap: 3px; /* Espaciado fino oficial */
    background-color: var(--border-color); /* Fondo del contenedor que simula bordes */
    border: 1px solid var(--border-color);
}

.bible-section-col:nth-child(2) .books-grid-jw {
    grid-template-columns: repeat(3, 1fr); /* 3 Columnas por defecto en Escrituras Griegas */
}

/* Ficha / Botón del Libro */
.book-btn-jw {
    background-color: var(--book-bg);
    border: none;
    color: var(--text-primary);
    padding: 0.85rem 0.75rem;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    min-height: 52px;
    display: flex;
    align-items: center;
    border-radius: var(--border-radius-sharp);
    transition: background-color var(--transition-fast);
}

.book-btn-jw:hover {
    background-color: var(--book-bg-hover);
}

/* Nombre del libro */
.book-title-text {
    flex-grow: 1;
    padding-right: 1.5rem; /* Margen para iconos */
}

/* Iconos de recursos en libros (auriculares, diamante, etc.) */
.book-meta-icons {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    gap: 4px;
    color: var(--text-muted);
}

.book-meta-icons svg {
    opacity: 0.65;
}

/* ==========================================================================
   VISTA: SELECCIÓN DE CAPÍTULOS (CUADRÍCULA NUMÉRICA)
   ========================================================================== */
.chapters-directory-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeIn var(--transition-normal);
}

.directory-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.text-link-btn {
    background: none;
    border: none;
    color: var(--link-color);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.text-link-btn:hover {
    text-decoration: underline;
}

.chapter-picker-title h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.chapter-picker-title span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Rejilla de cuadrados de capítulos */
.chapters-squares-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    gap: 6px;
    margin-top: 1rem;
}

.chapter-square-btn {
    aspect-ratio: 1; /* Cuadrado perfecto */
    background-color: var(--chapter-bg);
    border: 1px solid var(--border-color);
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--border-radius-sharp);
    transition: all var(--transition-fast);
}

.chapter-square-btn:hover {
    background-color: var(--chapter-bg-hover);
    transform: scale(1.03);
}

.chapter-square-btn.downloaded-chapter {
    border-color: var(--jw-purple);
    box-shadow: 0 0 0 1px var(--jw-purple);
}

/* ==========================================================================
   VISTA: LECTOR BÍBLICO (TEXTO INTEGRAL)
   ========================================================================== */
.reader-container-jw {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeIn var(--transition-normal);
}

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

.reader-header-left {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.reader-header-left h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2.25rem;
    color: var(--text-primary);
}

.reader-nav-arrows {
    display: flex;
    gap: 0.5rem;
}

.icon-nav-btn {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sharp);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-nav-btn:hover:not(:disabled) {
    background-color: var(--jw-purple-bg-alpha);
    border-color: var(--jw-purple);
    color: var(--jw-purple);
}

.icon-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.reader-text-body {
    font-size: 1.25rem;
    line-height: 1.85;
    color: var(--text-primary);
    text-align: justify;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.verse-block {
    display: inline;
    margin-right: 0.5rem;
    padding: 0.15rem 0.25rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.verse-block:hover {
    background-color: var(--jw-purple-bg-alpha);
}

.verse-number {
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    vertical-align: super;
    color: var(--jw-purple);
    margin-right: 0.2rem;
}

.verse-block.selected-highlight {
    background-color: var(--jw-purple-bg-alpha);
    border-bottom: 2px solid var(--jw-purple);
}

/* ==========================================================================
   VISTA: BUSCADOR INTELIGENTE (ESTILO JW.ORG)
   ========================================================================== */
.search-page-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}

.search-form-jw {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.search-input-box {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.search-input-box input {
    width: 100%;
    padding: 1rem 4.5rem 1rem 1.5rem;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1.05rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input-box input:focus {
    border-color: var(--jw-purple);
    box-shadow: 0 0 0 3px var(--jw-purple-bg-alpha);
}

.icon-clear-btn {
    position: absolute;
    right: 3rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
}
.icon-search-btn-box {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--jw-purple);
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}
.icon-search-btn-box:hover {
    color: var(--jw-purple-light);
}

.icon-clear-btn:hover {
    color: var(--text-primary);
}

.checkbox-container {
    display: inline-flex;
    align-items: center;
    position: relative;
    padding-left: 2rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--jw-purple);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--jw-purple);
    border-color: var(--jw-purple);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid #ffffff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Layout de búsqueda (Panel Historial / Panel Resultados) */
.search-results-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.search-history-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.panel-header h3 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.danger-text-btn {
    background: none;
    border: none;
    color: var(--danger);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.danger-text-btn:hover {
    text-decoration: underline;
}

.history-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.75rem;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.history-item:hover {
    border-color: var(--jw-purple);
    color: var(--jw-purple);
}

.delete-history-item {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
}

.delete-history-item:hover {
    color: var(--danger);
}

.empty-history {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 1rem;
}

.search-results-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.results-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-header-bar h2 {
    font-size: 1.15rem;
    color: var(--text-primary);
}

.search-results-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ==========================================================================
   TARJETA ESPECIAL DE BÚSQUEDA (ESTILO JW.ORG - RESULTADO DESTACADO)
   ========================================================================== */
.jw-result-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    padding: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.jw-result-card:hover {
    border-color: var(--jw-purple);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.jw-result-item-top {
    display: flex;
    gap: 1.25rem;
    align-items: center;
    position: relative;
    background-color: var(--bg-base);
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}
.jw-result-item-top:hover {
    background-color: var(--jw-purple-bg-alpha);
}

/* Miniatura de la Biblia de estudio (plata/azul con diamante) */
.jw-bible-thumbnail {
    width: 44px;
    height: 58px;
    background-color: #1a2f4c; /* Azul marino */
    border: 1.5px solid #dcdde1;
    border-radius: var(--border-radius-sharp);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e5c158; /* Color oro/plata */
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    flex-shrink: 0;
}

.jw-bible-thumbnail svg {
    filter: drop-shadow(0 1px 1px rgba(0,0,0,0.3));
}

.jw-result-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex-grow: 1;
    padding-right: 2rem; /* Margen para flecha */
}

/* Título de la Referencia en azul */
.jw-result-title {
    color: var(--link-color);
    font-size: 1.15rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
}

.jw-result-title:hover {
    text-decoration: underline;
}

.jw-result-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Flecha derecha de navegación oficial */
.jw-result-arrow {
    position: absolute;
    right: 1.25rem;
    color: var(--text-muted);
}

/* Texto del versículo destacado */
.jw-result-text-body {
    font-size: 1.15rem;
    line-height: 1.75;
    color: var(--text-primary);
    padding: 1.25rem;
    margin: 0;
}

.jw-result-text-body .v-num {
    font-weight: 700;
    color: var(--jw-purple);
    font-size: 0.85rem;
    vertical-align: super;
    margin-right: 0.25rem;
}

.jw-result-actions {
    display: flex;
    gap: 0.75rem;
    padding: 0 1.25rem 1.25rem 1.25rem;
    margin-top: -0.5rem; /* reducir espacio con el texto */
}

.jw-small-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    padding: 0.45rem 0.9rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}

.jw-small-btn:hover {
    border-color: var(--jw-purple);
    color: var(--jw-purple);
    background-color: var(--jw-purple-bg-alpha);
}

/* ==========================================================================
   VISTAS: AJUSTES, FAVORITOS Y NOTAS
   ========================================================================== */
.view-header-title {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.view-header-title h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.view-header-title p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.favorites-list-jw, .notes-list-jw {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.settings-grid-jw {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.settings-card h3 {
    font-size: 1.15rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
}

.settings-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 1.5rem;
}

.sync-actions-jw, .backup-actions-jw {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.db-status-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-row strong {
    color: var(--text-primary);
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--bg-base);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--jw-purple) 0%, var(--jw-purple-light) 100%);
    border-radius: 4px;
    width: 0%;
    transition: width 0.15s ease;
}

.progress-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 0.25rem;
}

/* Tarjeta específica para Notas guardadas */
.note-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.note-verse-ref {
    font-weight: 700;
    color: var(--link-color);
    cursor: pointer;
}

.note-verse-ref:hover {
    text-decoration: underline;
}

.note-verse-text {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    border-left: 3px solid var(--border-color);
    padding-left: 0.75rem;
    margin-bottom: 0.5rem;
}

.note-content-body {
    background-color: var(--bg-base);
    padding: 1rem;
    border-radius: var(--border-radius-sharp);
    border: 1px solid var(--border-color);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-primary);
    white-space: pre-wrap;
}

/* Vistas estáticas (Introducción, Apéndices) */
.static-content-body {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    padding: 2.5rem;
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-primary);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.static-content-body h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
    color: var(--jw-purple);
}

.static-content-body p {
    margin-bottom: 1.25rem;
    text-align: justify;
}

/* ==========================================================================
   CAJÓN DE ACCIONES (DRAWER) Y TOAST
   ========================================================================== */
.action-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 200;
    visibility: hidden;
    pointer-events: none;
    transition: visibility var(--transition-normal);
}

.action-drawer.open {
    visibility: visible;
    pointer-events: auto;
}

.drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.action-drawer.open .drawer-overlay {
    opacity: 1;
}

.drawer-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    max-height: 85%;
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
    box-shadow: 0 -10px 30px rgba(0,0,0,0.3);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
}

.action-drawer.open .drawer-content {
    transform: translateY(0);
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    padding-bottom: 0.5rem;
}

.drawer-header .bar {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background-color: var(--text-muted);
    opacity: 0.4;
    border-radius: 2px;
}

.drawer-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.icon-btn-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.icon-btn-close:hover {
    color: var(--text-primary);
}

.drawer-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

#drawer-verse-preview {
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-primary);
    background-color: var(--bg-base);
    padding: 1.25rem;
    border-radius: var(--border-radius-sharp);
    border-left: 4px solid var(--jw-purple);
}

.action-buttons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.drawer-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.drawer-btn:hover {
    border-color: var(--jw-purple);
    color: var(--jw-purple);
    background-color: var(--jw-purple-bg-alpha);
}

.drawer-btn svg {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.drawer-btn:hover svg {
    color: var(--jw-purple);
}

.drawer-btn.active-fav svg {
    color: var(--jw-purple);
}

.drawer-btn.active-fav {
    border-color: var(--jw-purple);
    background-color: var(--jw-purple-bg-alpha);
    color: var(--jw-purple);
}

.drawer-notes-editor {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.drawer-notes-editor h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.drawer-notes-editor textarea {
    width: 100%;
    height: 100px;
    padding: 0.75rem;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    resize: none;
    outline: none;
    transition: border-color var(--transition-fast);
}

.drawer-notes-editor textarea:focus {
    border-color: var(--jw-purple);
}

.editor-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

.btn-outline-danger {
    background-color: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
}

.btn-outline-danger:hover {
    background-color: var(--danger-light);
}

/* Toast flotante */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--jw-purple-dark);
    color: #ffffff;
    padding: 0.75rem 1.50rem;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
    border: 1px solid var(--jw-purple);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Pantalla de Carga (Splash Screen) */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #0f0d13;
    color: #f5f5f7;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    max-width: 300px;
    width: 100%;
}

.bible-logo-box {
    animation: pulse 2s infinite ease-in-out;
    background-color: #1a2f4c;
    border: 2px solid #ffffff;
    width: 72px;
    height: 96px;
    border-radius: var(--border-radius-sharp);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e5c158;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.85; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 0.85; }
}

.splash-content h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.75rem;
    color: #ffffff;
}

.splash-content p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==========================================================================
   DISEÑO RESPONSIVO (PÁGINAS FLUIDAS)
   ========================================================================== */

/* 1. TABLETS (Pantallas medianas < 1024px) */
@media (max-width: 1024px) {
    .books-directory-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .books-grid-jw {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .bible-section-col:nth-child(2) .books-grid-jw {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .content-container {
        padding: 1.5rem;
    }
}

/* 2. MÓVILES (Pantallas pequeñas < 768px) */
@media (max-width: 768px) {
    .app-header {
        padding: 0 0.75rem;
    }
    
    .app-title {
        font-size: 1rem;
    }
    
    .sub-nav-tabs {
        padding: 0 0.5rem;
    }
    
    .tab-item {
        padding: 0.8rem 0.6rem;
        font-size: 0.75rem;
    }
    
    .content-container {
        padding: 1rem;
    }
    
    .books-grid-jw {
        grid-template-columns: repeat(2, 1fr); /* 2 Columnas en móvil */
    }
    
    .bible-section-col:nth-child(2) .books-grid-jw {
        grid-template-columns: repeat(2, 1fr); /* 2 Columnas en móvil */
    }
    
    .chapters-squares-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .reader-header-left h2 {
        font-size: 1.75rem;
    }
    
    .reader-text-body {
        font-size: 1.15rem;
        line-height: 1.75;
    }
    
    .search-results-layout {
        grid-template-columns: 1fr;
    }
    
    .search-history-panel {
        display: none; /* Ocultar historial lateral en móviles */
    }
    
    .jw-result-card {
        padding: 1rem;
    }
    
    .jw-result-text-body {
        font-size: 1.05rem;
    }
    
    .action-buttons-grid {
        gap: 0.5rem;
    }
    
    .drawer-btn {
        padding: 0.6rem;
        font-size: 0.75rem;
    }
    
    .settings-grid-jw {
        grid-template-columns: 1fr;
    }
}

/* Personalización de Lectura y Copiado */
.personalization-settings-jw {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.setting-item-jw {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-item-jw label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.select-jw {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.select-jw:focus {
    border-color: var(--jw-purple);
}

.setting-item-jw.checkbox-row-jw {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    margin-top: 0.25rem;
}

.setting-item-jw.checkbox-row-jw input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--jw-purple);
    cursor: pointer;
}

.setting-item-jw.checkbox-row-jw label {
    cursor: pointer;
    margin-bottom: 0;
    user-select: none;
}

.font-size-controls-jw {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-small-jw {
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-small-jw:hover {
    border-color: var(--jw-purple);
    background-color: var(--jw-purple-bg-alpha);
    color: var(--jw-purple);
}

.font-size-val-jw {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 48px;
    text-align: center;
}

.copy-preview-box-jw {
    margin-top: 0.5rem;
    padding: 1.25rem;
    background-color: var(--bg-base);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-sharp);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    font-size: 1.15rem;
    line-height: 1.6;
    text-align: center;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-normal);
}

.settings-row-jw {
    display: flex;
    gap: 0.75rem;
    width: 100%;
}
.settings-row-jw > .setting-item-jw {
    flex: 1;
}
.settings-row-jw.align-center-jw {
    align-items: center;
    justify-content: space-between;
}
.setting-item-jw.inline-size-control-jw {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.25rem;
}

/* Pantalla de Login (Glassmorphic) */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at center, #2e1846 0%, #0f0d13 100%);
    z-index: 900;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
    overflow: hidden;
}

.login-card {
    background: rgba(37, 34, 45, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    animation: fadeIn 0.4s ease-out;
}

.login-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
}

.login-header h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.85rem;
    color: #ffffff;
    margin-top: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-group input {
    width: 100%;
    padding: 0.85rem 1rem;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sharp);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-group input:focus {
    border-color: var(--jw-purple);
    box-shadow: 0 0 0 3px var(--jw-purple-bg-alpha);
}

.login-error {
    color: var(--danger);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    background-color: var(--danger-light);
    padding: 0.5rem;
    border-radius: var(--border-radius-sharp);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.login-btn {
    width: 100%;
    padding: 0.9rem;
    font-size: 1rem;
    font-weight: 600;
    margin-top: 0.5rem;
}