/* ==========================================================================
   Estilos de la Biblioteca de Canciones (Mis Tabs / Setlists Studio PRO)
   ========================================================================== */

.library-sidebar {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  width: 96%;
  max-width: 1800px;
  margin: 0 auto;
  padding: 16px 16px 140px 16px;
  background-color: transparent;
}

.library-header {
  padding: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle) !important;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.library-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.library-title-row h2 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  flex: 1;
  letter-spacing: -0.3px;
  margin: 0;
}

.lib-count-badge {
  font-size: 0.75rem;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(255, 87, 34, 0.2), rgba(0, 229, 255, 0.2));
  color: #00e5ff;
  border: 1px solid rgba(0, 229, 255, 0.4);
  padding: 3px 10px;
  border-radius: 12px;
}

/* Buscador */
.library-search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.library-search-box input {
  width: 100%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 10px 36px 10px 38px;
  border-radius: 10px;
  font-size: 0.88rem;
  outline: none;
  transition: all var(--transition-fast);
}

.library-search-box input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 16px var(--accent-primary-glow);
}

.btn-clear-search {
  position: absolute;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
}

/* Chips de Géneros Musicales */
.library-genre-chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.library-genre-chips::-webkit-scrollbar {
  display: none;
}

/* Chips de Géneros Musicales */
.library-genre-chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.library-genre-chips::-webkit-scrollbar {
  display: none;
}

.genre-chip {
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-subtle) !important;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

body.theme-ivory .genre-chip {
  background: #f0eee9;
  border-color: rgba(0, 0, 0, 0.12) !important;
  color: #2c3038;
}

.genre-chip:hover {
  background: var(--border-strong);
  color: var(--text-primary);
}

.genre-chip.active {
  background: var(--accent-primary) !important;
  color: #ffffff !important;
  border-color: var(--accent-primary) !important;
  box-shadow: 0 0 10px var(--accent-primary-glow);
}

/* Pestañas de Filtro */
.library-filter-tabs {
  display: flex;
  gap: 6px;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-subtle) !important;
  border-radius: 10px;
  padding: 4px;
}

body.theme-ivory .library-filter-tabs {
  background: #f0eee9;
  border-color: rgba(0, 0, 0, 0.12) !important;
}

.lib-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 7px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

body.theme-ivory .lib-tab {
  color: #474d57;
}

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

.lib-tab.active {
  background: var(--accent-primary) !important;
  color: #ffffff !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* Acciones de Importación */
.library-import-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.btn-import {
  flex: 1;
  background-color: var(--bg-surface-raised);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

body.theme-ivory .btn-import {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.15);
  color: #1a1a1a;
}

.btn-import:hover {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

.btn-demo-quick {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.15) 0%, rgba(0, 136, 255, 0.15) 100%);
  border-color: rgba(0, 229, 255, 0.4);
  color: var(--accent-secondary);
}

.btn-demo-quick:hover {
  background: var(--accent-secondary);
  color: var(--text-inverse);
}

/* Lista de Canciones */
.library-song-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (min-width: 800px) {
  .library-song-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 12px;
    align-content: start;
  }
}

.library-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  text-align: center;
  color: var(--text-muted);
  gap: 8px;
  grid-column: 1 / -1;
}

.empty-icon {
  font-size: 2.2rem;
  opacity: 0.4;
}

.empty-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Tarjetas de Canción en Biblioteca */
.song-card {
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle) !important;
  border-radius: 14px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

body.theme-ivory .song-card {
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.12) !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.song-card:hover {
  background: var(--bg-surface-raised);
  border-color: var(--accent-primary) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

body.theme-ivory .song-card:hover {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.song-card-active {
  border-color: var(--accent-secondary) !important;
  background: rgba(0, 229, 255, 0.08) !important;
  box-shadow: 0 0 16px var(--accent-secondary-glow) !important;
}

.song-card-main {
  flex: 1 1 auto;
  min-width: 0 !important;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  text-align: left;
  cursor: pointer;
  gap: 3px;
  overflow: hidden;
  font-family: inherit;
}

.song-card-title {
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.25;
  width: 100%;
  text-align: left;
  word-break: break-word;
}

.song-card-artist {
  font-size: 0.82rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}

.song-card-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.song-card-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  margin-left: 4px;
}

.btn-fav-song, .btn-del-song, .btn-add-setlist {
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-subtle) !important;
  cursor: pointer;
  font-size: 0.82rem;
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

body.theme-ivory .btn-fav-song,
body.theme-ivory .btn-del-song,
body.theme-ivory .btn-add-setlist {
  background: #f0eee9;
  border-color: rgba(0, 0, 0, 0.12) !important;
  color: #374151;
}

.btn-fav-song:hover {
  background: var(--accent-amber);
  color: var(--text-inverse);
}

.fav-active {
  background: var(--accent-amber);
  opacity: 1;
  border-color: #ffb300;
  color: #ffffff;
}

.btn-del-song:hover {
  background: #ff5252;
  border-color: #ff5252;
  color: #ffffff;
}

.setlist-card {
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle) !important;
  border-radius: 14px;
  padding: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  box-sizing: border-box;
  overflow: hidden;
}

body.theme-ivory .setlist-card {
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.12) !important;
}

.setlist-explainer-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-xs);
}

.setlist-explainer-card .explainer-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  color: var(--accent-secondary);
}

.setlist-explainer-card .explainer-body strong {
  font-size: 0.9rem;
  color: var(--text-primary);
  display: block;
  margin-bottom: 4px;
}

.setlist-explainer-card .explainer-body p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin: 0;
}

body.theme-ivory .setlist-explainer-card {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.08);
}

.setlist-card-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
}

.setlist-card-count {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.btn-play-setlist {
  background: var(--accent-primary);
  color: #ffffff;
  border: none;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
}

.home-song-card {
  min-width: 0 !important;
  background: var(--bg-surface-solid) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: 14px !important;
  padding: 14px 16px !important;
}

body.theme-ivory .home-song-card {
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.12) !important;
}

.home-song-card:hover {
  border-color: var(--accent-primary) !important;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3) !important;
}

/* Estados Vacíos Empáticos */
.library-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  gap: 12px;
  background: var(--bg-surface-raised);
  border: 1px dashed var(--border-strong);
  border-radius: 16px;
  margin: 16px 0;
  grid-column: 1 / -1;
  width: 100%;
}

.empty-icon {
  font-size: 2.4rem;
  margin-bottom: 4px;
}

.empty-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.empty-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 320px;
}

.empty-actions-row {
  margin-top: 8px;
}

.btn-empty-action {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-hover) 100%);
  color: var(--text-primary);
  border: none;
  font-size: 0.84rem;
  font-weight: 800;
  padding: 10px 20px;
  border-radius: 24px;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--accent-primary-glow);
  transition: all var(--transition-fast);
}

.btn-empty-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--accent-primary-glow);
}

/* ==========================================================================
   Chips de Búsqueda Rápida & Guía Rápida (Cero Curva de Aprendizaje)
   ========================================================================== */
.explore-quick-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 10px;
  width: 100%;
}

.quick-chip-label {
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quick-chip-btn {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.quick-chip-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--text-primary);
  color: var(--text-primary);
  transform: translateY(-1px);
}

body.theme-ivory .quick-chip-btn {
  background: #ffffff;
  border-color: var(--border-strong);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

body.theme-ivory .quick-chip-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--text-primary);
  color: var(--text-primary);
}

/* ==========================================================================
   Contenedor de Búsqueda con Filtro de Género Integrado & Recientes
   ========================================================================== */
.explore-search-container-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 900px;
  margin: 6px auto 0 auto;
  position: relative;
}

.explore-search-box {
  flex: 1;
  position: relative;
  min-width: 0;
}

.btn-genre-filter-toggle {
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 14px 18px;
  border-radius: 28px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.btn-genre-filter-toggle:hover,
.btn-genre-filter-toggle.active-filter {
  background: var(--bg-surface-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.explore-genre-dropdown-filter {
  width: 100%;
  max-width: 900px;
  margin: 10px auto 0 auto;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 12px 16px;
  box-shadow: var(--shadow-md);
  animation: slideDownFade 0.2s var(--ease-spring);
}

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

/* Panel Desplegable de Canciones y Búsquedas Recientes */
.explore-recents-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  animation: slideDownFade 0.18s var(--ease-spring);
}

body.theme-ivory .explore-recents-dropdown {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
}

.recents-dropdown-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.recents-song-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.recent-song-item-btn {
  background: transparent;
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
  color: var(--text-primary);
  width: 100%;
}

.recent-song-item-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--accent-primary);
}

.recent-song-title {
  font-weight: 700;
  font-size: 0.88rem;
}

.recent-song-artist {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.recents-chips-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.recents-empty-hint {
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 6px 0;
}

/* Acordeón Plegable de Tendencias */
.explore-trending-accordion {
  width: 100%;
  max-width: 900px;
  margin: 10px auto 0 auto;
}

.trending-summary-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
  user-select: none;
}

.trending-summary-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
  background: var(--bg-surface-hover);
}

.explore-trending-accordion[open] .summary-caret {
  transform: rotate(180deg);
}

.summary-caret {
  transition: transform 0.2s ease;
  display: inline-block;
  font-size: 0.8rem;
}

@media (max-width: 600px) {
  .explore-search-container-row {
    flex-direction: column;
    gap: 8px;
  }
  .btn-genre-filter-toggle {
    width: 100%;
    justify-content: center;
  }
}