/* ==========================================================================
   FOGATA — Sistema de Diseño y Hoja de Estilos Principal
   Fase 0: Legibilidad Extrema, Modo Oscuro Puro, Columna Única, Preservación de Acordes
   Legacy Compatibility Targets: iOS 9.3+, Android 4.4/5+, Safari 9+, Chrome antiguo
   ========================================================================== */

:root {
  --bg-base: #0d0d0d;
  --bg-surface: #181818;
  --bg-surface-elevated: #222222;
  --bg-hover: #2a2a2a;
  
  --border-color: #303030;
  --border-focus: #ff9800;

  --text-main: #f5f5f5;
  --text-muted: #9e9e9e;
  --text-dim: #6e6e6e;

  --color-flame: #ff9800;
  --color-flame-light: #ffb74d;
  --color-flame-dark: #e65100;

  --color-success: #4caf50;
  --color-danger: #f44336;

  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --touch-min-height: 48px;
  --content-max-width: 840px;
}

/* Base */
body {
  background-color: #0d0d0d;
  background-color: var(--bg-base);
  color: #f5f5f5;
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-family: var(--font-system);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

/* Layout y Lectura en Columna Única */
.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 840px;
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
}

/* Cabecera Principal */
.site-header {
  background-color: #141414;
  background-color: var(--bg-surface);
  border-bottom: 1px solid #303030;
  border-bottom-color: var(--border-color);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.35rem;
  font-weight: 700;
  color: #ff9800;
  color: var(--color-flame);
  letter-spacing: -0.5px;
}

.site-brand .brand-logo {
  height: 34px;
  width: auto;
  max-width: 40px;
  vertical-align: middle;
}

.site-brand .brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  background-color: #2a2a2a;
  color: #9e9e9e;
  padding: 2px 6px;
  border-radius: 4px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #f5f5f5;
  color: var(--text-main);
  background-color: transparent;
  transition: background-color 0.15s ease;
  min-height: 48px;
  min-height: var(--touch-min-height);
  display: inline-flex;
  align-items: center;
}

.site-nav a:hover,
.site-nav a:focus {
  background-color: #262626;
  color: #ff9800;
}

.site-nav a.active {
  background-color: #262626;
  color: #ff9800;
}

/* Contenido Principal */
.main-content {
  flex: 1;
  padding-top: 24px;
  padding-bottom: 48px;
}

/* Títulos y Secciones */
.page-header {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 700;
  color: #f5f5f5;
  color: var(--text-main);
  line-height: 1.2;
}

.page-subtitle {
  font-size: 1rem;
  color: #9e9e9e;
  color: var(--text-muted);
}

/* Botones con Tamaño Táctil Generoso (Min 48px) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  min-height: var(--touch-min-height);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  background-color: #e65100;
  background-color: var(--color-flame-dark);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #ff9800;
  background-color: var(--color-flame);
  color: #000000;
}

.btn-secondary {
  background-color: #222222;
  background-color: var(--bg-surface-elevated);
  border-color: #383838;
  border-color: var(--border-color);
  color: #f5f5f5;
  color: var(--text-main);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: #2e2e2e;
  border-color: #4a4a4a;
}

.btn-danger {
  background-color: #2b1414;
  border-color: #612323;
  color: #ef9a9a;
}

.btn-danger:hover,
.btn-danger:focus {
  background-color: #b71c1c;
  color: #ffffff;
}

.btn-sm {
  min-height: 48px;
  min-height: var(--touch-min-height);
  padding: 8px 14px;
  font-size: 0.92rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Tarjetas y Contenedores de Lista */
.card {
  background-color: #181818;
  background-color: var(--bg-surface);
  border: 1px solid #303030;
  border-color: var(--border-color);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 16px;
}

.card-clickable {
  display: block;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.card-clickable:hover,
.card-clickable:focus {
  border-color: #ff9800;
  border-color: var(--color-flame);
  background-color: #202020;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f5f5f5;
  color: var(--text-main);
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 0.92rem;
  color: #9e9e9e;
  color: var(--text-muted);
}

.card-meta-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 0.85rem;
  color: #9e9e9e;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  background-color: #242424;
  color: #ff9800;
  border: 1px solid #3a3a3a;
}

/* Formularios Estándar (Accesibles y Robustos) */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #f5f5f5;
  color: var(--text-main);
}

.form-help {
  display: block;
  font-size: 0.82rem;
  color: #9e9e9e;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background-color: #141414;
  border: 1px solid #383838;
  border-color: var(--border-color);
  border-radius: 8px;
  color: #ffffff;
  padding: 12px 14px;
  font-size: 1rem;
  min-height: 48px;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: #ff9800;
  border-color: var(--border-focus);
}

.form-input-short {
  max-width: 160px;
}

.form-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.form-row .form-group {
  flex: 1;
  min-width: 140px;
}

.form-textarea {
  resize: vertical;
  min-height: 180px;
}

.font-mono {
  font-family: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !important;
  font-family: var(--font-mono) !important;
  line-height: 1.45;
  tab-size: 4;
}

/* ==========================================================================
   MODO MÚSICO / PANTALLA DE ATRIL (Criterios 2 y 3)
   - Tipografía monoespaciada
   - Preservación de espacios y saltos de línea (white-space: pre)
   - Evitar auto-wrapping para que los acordes no se desfasen de las sílabas
   - Lectura vertical en columna única (arriba -> abajo)
   ========================================================================== */

.atril-container {
  width: 100%;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
  padding: 12px 16px 80px 16px;
}

.atril-toolbar {
  position: sticky;
  top: 0;
  z-index: 90;
  background-color: #0d0d0d;
  background-color: var(--bg-base);
  border-bottom: 1px solid #282828;
  padding: 10px 0;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.atril-toolbar-left,
.atril-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.atril-meta-header {
  margin-bottom: 20px;
  border-bottom: 1px solid #222222;
  padding-bottom: 14px;
}

.atril-song-title {
  font-size: 1.95rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

.atril-song-artist {
  font-size: 1.15rem;
  color: #ff9800;
  color: var(--color-flame);
  margin-top: 4px;
}

.atril-tags-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.atril-tag {
  background-color: #1c1c1c;
  border: 1px solid #333333;
  color: #e0e0e0;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.atril-tag-highlight {
  border-color: #e65100;
  color: #ffb74d;
  background-color: #241407;
}

.atril-notas-box {
  background-color: #171717;
  border-left: 3px solid #ff9800;
  padding: 10px 14px;
  border-radius: 0 6px 6px 0;
  margin-top: 12px;
  font-size: 0.92rem;
  color: #cccccc;
}

/* Caja de Letra y Acordes en Modo Músico */
.letra-acordes-wrapper {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background-color: #121212;
  border: 1px solid #262626;
  border-radius: 8px;
  padding: 16px 20px;
  margin-top: 16px;
}

.letra-acordes-musico {
  font-family: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.45;
  color: #f5f5f5;
  color: var(--text-main);
  
  /* CRITERIO 2: white-space: pre estricto para preservar la relación espacial */
  white-space: pre;
  word-wrap: normal;
  overflow-wrap: normal;
}

/* Acordes identificados en naranja Fogata (Criterio 5 - Fase 1) */
.acorde {
  color: #ff9800;
  color: var(--color-flame);
  font-weight: 700;
}

/* Encabezados de sección ([Intro], [Coro], etc.) */
.seccion-musical {
  color: #ffb74d;
  color: var(--color-flame-light);
  font-weight: 700;
  opacity: 0.95;
}

/* Modo Invitado (solo letra, fluido y wrap normal) */
.letra-invitado {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-family: var(--font-system);
  font-size: 1.25rem;
  line-height: 1.7;
  color: #f5f5f5;
  white-space: pre-wrap; /* Permite wrap natural sin desfasar acordes porque no hay acordes */
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Controles de Zoom en Atril (Min 48px para accesibilidad táctil en atril) */
.zoom-controls {
  display: inline-flex;
  border: 1px solid #383838;
  border-radius: 8px;
  overflow: hidden;
  background-color: #1c1c1c;
}

.zoom-btn {
  background: transparent;
  border: none;
  color: #f5f5f5;
  padding: 8px 16px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  min-height: 48px;
  min-height: var(--touch-min-height);
  min-width: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.zoom-btn:hover,
.zoom-btn:focus {
  background-color: #2b2b2b;
  color: #ff9800;
}

.zoom-btn:active {
  background-color: #ff9800;
  color: #000;
}

.zoom-btn + .zoom-btn {
  border-left: 1px solid #333333;
}

/* Indicador y Botón de Wake Lock (Min 48px) */
.wakelock-btn {
  min-height: 48px;
  min-height: var(--touch-min-height);
  padding: 8px 14px;
  font-size: 0.88rem;
  border-radius: 6px;
  border: 1px solid #383838;
  background-color: #1c1c1c;
  color: #9e9e9e;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.wakelock-btn.active {
  background-color: #1a2a1a;
  border-color: #388e3c;
  color: #81c784;
}

/* Barra de Navegación de Sesión (Anterior / Siguiente) */
.sesion-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid #262626;
}

.sesion-nav-btn {
  flex: 1;
  max-width: 220px;
}

.sesion-indicator {
  font-size: 0.95rem;
  color: #9e9e9e;
  font-weight: 600;
}

/* Buscador Rápido */
.search-bar-form {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.search-input {
  flex: 1;
}

/* Tablas / Listas de Setlist */
.setlist-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.setlist-item {
  background-color: #181818;
  border: 1px solid #2e2e2e;
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.setlist-item-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 200px;
}

.setlist-order {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ff9800;
  width: 28px;
  text-align: center;
}

.setlist-info h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
}

.setlist-info p {
  font-size: 0.85rem;
  color: #9e9e9e;
}

.setlist-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Pantalla de Expiración Sobria (410) */
.expired-card {
  text-align: center;
  max-width: 540px;
  margin: 60px auto;
  padding: 36px 24px;
  background-color: #141414;
  border: 1px solid #2c2c2c;
  border-radius: 12px;
}

.expired-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.expired-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.expired-desc {
  font-size: 1rem;
  color: #9e9e9e;
  line-height: 1.5;
  margin-bottom: 24px;
}

/* Pie de Página */
.site-footer {
  border-top: 1px solid #222222;
  padding: 20px 0;
  font-size: 0.85rem;
  color: #666666;
  text-align: center;
  margin-top: auto;
}

/* Ajustes Responsive en Tablets (Manteniendo estricta COLUMNA ÚNICA) */
@media (min-width: 600px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
  
  .atril-container {
    padding-left: 32px;
    padding-right: 32px;
  }

  .letra-acordes-musico {
    font-size: 1.25rem;
  }
}

@media (min-width: 900px) {
  .atril-container {
    max-width: 880px; /* Margen cómodo, lectura siempre vertical */
  }
}

/* Optimización móvil en apaisado / atril horizontal */
@media (max-height: 500px) and (orientation: landscape) {
  .atril-toolbar {
    padding: 4px 0;
    margin-bottom: 8px;
  }
  .atril-meta-header {
    margin-bottom: 8px;
    padding-bottom: 6px;
  }
  .atril-song-title {
    font-size: 1.35rem;
  }
  .atril-container {
    padding-bottom: 90px;
  }
}

/* ==========================================================================
   BARRA FIJA DE CONTROLES EN MODO ATRIL (Fase 2: Auto-Scroll y Bloques)
   ========================================================================== */
.atril-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 95;
  background-color: #161616;
  background-color: rgba(22, 22, 22, 0.95);
  border-top: 1px solid #333333;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.65);
  padding: 8px 12px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
}

.atril-bottom-bar-inner {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.atril-bar-group {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: #121212;
  border: 1px solid #2e2e2e;
  border-radius: 8px;
  padding: 2px 4px;
}

.atril-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  min-height: 48px;
  background: transparent;
  border: none;
  color: #f5f5f5;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 6px;
  padding: 0;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.atril-bar-btn:active {
  background-color: #2c2c2c;
}

.atril-play-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 120px;
  min-height: 48px;
  padding: 0 16px;
  background-color: #e65100;
  background-color: var(--color-flame-dark);
  color: #ffffff;
  border: 1px solid #ff9800;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.atril-play-btn:hover,
.atril-play-btn:focus {
  background-color: #ff9800;
  background-color: var(--color-flame);
  color: #000000;
}

.atril-play-btn.is-playing {
  background-color: #242424;
  border-color: #4a4a4a;
  color: #ffb74d;
}

.atril-play-btn.is-playing:hover,
.atril-play-btn.is-playing:focus {
  background-color: #333333;
  color: #ffffff;
}

.atril-play-texto {
  font-size: 0.95rem;
}

.atril-vel-label {
  display: inline-block;
  min-width: 66px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: #ff9800;
  color: var(--color-flame);
  user-select: none;
}

/* Espaciador de seguridad inferior para que los últimos versos nunca queden tapados */
.atril-bottom-spacer {
  height: 120px;
  width: 100%;
}

@media (max-width: 400px) {
  .atril-play-texto {
    display: none;
  }
  .atril-play-btn {
    min-width: 52px;
    padding: 0 10px;
    font-size: 1.25rem;
  }
  .atril-vel-label {
    min-width: 52px;
    font-size: 0.78rem;
  }
}

/* =============================================================================
   Fase 3: Barra de Transposición, Notación y Edición Rápida de Acordes
   ============================================================================= */

/* Barra de Ajustes Musicales */
.atril-musical-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  background-color: #161616;
  border: 1px solid #282828;
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 14px;
}

.atril-transposicion-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.atril-musical-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: #a0a0a0;
  margin-right: 4px;
}

.atril-tono-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0 12px;
  background-color: #242424;
  border: 1px solid #3c3c3c;
  border-radius: 6px;
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.atril-tono-btn:hover,
.atril-tono-btn:focus {
  background-color: #333333;
  border-color: #ff9800;
  border-color: var(--color-flame);
  color: #ffffff;
  outline: none;
}

.atril-tono-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  background-color: #1a1a1a;
  border: 1px solid #333333;
  border-radius: 6px;
  color: #ff9800;
  color: var(--color-flame);
  font-size: 0.92rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.atril-tono-badge:hover,
.atril-tono-badge:focus {
  background-color: #262626;
  border-color: #4a4a4a;
  color: #ffb74d;
}

.atril-notacion-group {
  display: flex;
  align-items: center;
}

.atril-notacion-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  background-color: #242424;
  border: 1px solid #3c3c3c;
  border-radius: 6px;
  color: #e0e0e0;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.atril-notacion-btn:hover,
.atril-notacion-btn:focus {
  background-color: #333333;
  border-color: #ff9800;
  border-color: var(--color-flame);
  color: #ffffff;
  outline: none;
}

/* Acordes Utilizados de esta canción (Criterio 16) */
.atril-acordes-resumen {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.9rem;
  color: #9e9e9e;
}

.atril-acordes-label {
  font-weight: 600;
  color: #888888;
}

.atril-acordes-tokens {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #ffb74d;
  letter-spacing: 0.5px;
}

/* Acordes Editables en Ficha de Edición Rápida (Criterio 2) */
.acorde.acorde-editable {
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  border: 1px dashed rgba(255, 152, 0, 0.45);
  background-color: rgba(255, 152, 0, 0.08);
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.acorde.acorde-editable:hover,
.acorde.acorde-editable:focus {
  background-color: rgba(255, 152, 0, 0.25);
  border-color: var(--color-flame);
  color: #ffffff;
  transform: scale(1.05);
  outline: none;
}

.acorde.acorde-seleccionado {
  background-color: var(--color-flame) !important;
  color: #000000 !important;
  border-color: #ffffff !important;
  box-shadow: 0 0 8px rgba(255, 152, 0, 0.6);
}

.acorde-badge-display {
  display: inline-block;
  padding: 6px 14px;
  background-color: #242424;
  border: 1px solid #444444;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-flame);
}

/* Modal Flotante de Edición Rápida */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal-dialog {
  background-color: #1c1c1c;
  border: 1px solid #383838;
  border-radius: 10px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  animation: modalFadeIn 0.18s ease-out;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid #2d2d2d;
  background-color: #161616;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: #888888;
  font-size: 1.6rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.modal-close-btn:hover {
  color: #ffffff;
}

.modal-body {
  padding: 20px 18px;
}

/* Enlace e interactividad de acorde para diagramas (Criterio 14 - Fase 4) */
/* Debe ser estrictamente inline y no añadir espaciado que rompa la métrica monospace */
.acorde-link {
  display: inline;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
  font: inherit;
}

.acorde-link:hover .acorde,
.acorde-link:focus .acorde {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  color: #ffb74d;
}

.acorde-link:focus {
  outline: none;
}

/* ==========================================================================
   Modal de Diagrama de Acorde (Fase 4)
   ========================================================================== */
.modal-diagrama-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 16px;
  box-sizing: border-box;
}

.modal-diagrama-box {
  background: #181818;
  border: 1px solid #333333;
  border-radius: 12px;
  width: 100%;
  max-width: 320px;
  max-height: 90vh;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  animation: modalEntrada 0.15s ease-out;
}

@keyframes modalEntrada {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-diagrama-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid #2a2a2a;
}

.modal-diagrama-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
}

.modal-diagrama-close {
  background: transparent;
  border: none;
  color: #888888;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-diagrama-close:hover,
.modal-diagrama-close:focus {
  color: #ffffff;
}

.modal-diagrama-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.diagrama-alerta-afinacion {
  background: #2a2010;
  border: 1px solid #d97706;
  color: #fef3c7;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  margin-bottom: 12px;
  text-align: center;
  width: 100%;
  box-sizing: border-box;
}

.diagrama-svg-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.diagrama-svg-wrapper svg {
  max-width: 100%;
  height: auto;
}

.diagrama-mensaje-texto {
  color: #a3a3a3;
  font-size: 0.95rem;
  text-align: center;
  margin: 20px 0;
}

.modal-diagrama-footer {
  padding: 10px 16px;
  border-top: 1px solid #2a2a2a;
  display: flex;
  justify-content: flex-end;
}

/* =========================================================================
   Banner de Conectividad y Controles Offline PWA (Fase 5)
   ========================================================================= */

.banner-offline {
  background-color: #21160a;
  border-bottom: 1px solid #ff9800;
  color: #ffb74d;
  font-size: 0.88rem;
  font-weight: 500;
  width: 100%;
  box-sizing: border-box;
}

.panel-offline {
  background-color: #141414;
  border: 1px solid #2b2b2b;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 24px;
}

.panel-offline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.panel-offline-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-offline-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 4px;
  line-height: 1.4;
}

.offline-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
}

.offline-status-badge.saved {
  background-color: #1b2e1e;
  border: 1px solid #2e7d32;
  color: #81c784;
}

.offline-status-badge.not-saved {
  background-color: #1c1c1c;
  border: 1px solid #383838;
  color: #9e9e9e;
}

.offline-progress-bar {
  width: 100%;
  height: 4px;
  background-color: #2b2b2b;
  border-radius: 2px;
  margin-top: 10px;
  overflow: hidden;
}

.offline-progress-fill {
  height: 100%;
  background-color: #ff9800;
  width: 0%;
  transition: width 0.2s ease;
}