/* =============================================================================
   YouTube Playlists Section - Estilos Aislados
   ============================================================================= */

/* Namespace: .youtube-playlists-section para evitar conflictos */
.youtube-playlists-section {
  /* Variables CSS específicas de esta sección */
  --playlist-primary-color: #dc2626;
  --playlist-primary-hover: #b91c1c;
  --playlist-secondary-color: #fed7d7;
  --playlist-accent-color: #fef2f2;
  --playlist-text-primary: #1f2937;
  --playlist-text-secondary: #6b7280;
  --playlist-text-muted: #9ca3af;
  --playlist-border-color: #e5e7eb;
  --playlist-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --playlist-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --playlist-border-radius: 0.75rem;
  --playlist-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Contenedor principal de la sección */
.youtube-playlists-section {
  padding: 4rem 0 6rem 0;
  background: linear-gradient(135deg, var(--playlist-accent-color) 0%, #fff7ed 100%);
  position: relative;
  isolation: isolate;
  /* Habilitar container queries para adaptar la grilla al ancho real */
  container-type: inline-size;
}

@media (min-width: 1024px) {
  .youtube-playlists-section {
    padding: 6rem 0;
  }
}

/* Header de la sección */
.youtube-playlists-section .section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.youtube-playlists-section .section-badge {
  display: inline-flex;
  align-items: center;
  background-color: var(--playlist-primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  box-shadow: var(--playlist-shadow);
  transition: var(--playlist-transition);
}

.youtube-playlists-section .section-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--playlist-shadow-hover);
}

.youtube-playlists-section .section-badge svg {
  width: 1rem;
  height: 1rem;
  margin-right: 0.5rem;
  flex-shrink: 0;
}

.youtube-playlists-section .section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--playlist-text-primary);
  margin-bottom: 1.25rem;
  line-height: 1.2;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: -0.005em;
  text-wrap: balance;
}

@media (min-width: 1024px) {
  .youtube-playlists-section .section-title {
    font-size: 2.25rem;
  }
}

.youtube-playlists-section .section-title .highlight {
  color: var(--playlist-primary-color);
}

.youtube-playlists-section .section-description {
  font-size: 1.125rem;
  color: var(--playlist-text-secondary);
  max-width: 48rem;
  margin: 0 auto 2.5rem auto;
  line-height: 1.8;
  text-wrap: pretty;
}

@media (min-width: 1024px) {
  .youtube-playlists-section .section-description {
    font-size: 1.25rem;
  }
}

/* Loading spinner */
.youtube-playlists-section .loading-container {
  text-align: center;
  padding: 3rem 0;
}

.youtube-playlists-section .loading-spinner {
  display: inline-flex;
  align-items: center;
  padding: 1.5rem 1.5rem;
  font-weight: 600;
  font-size: 1.125rem;
  box-shadow: var(--playlist-shadow-hover);
  border-radius: var(--playlist-border-radius);
  color: var(--playlist-primary-color);
  background-color: white;
  border: 2px solid var(--playlist-secondary-color);
  transition: var(--playlist-transition);
}

.youtube-playlists-section .loading-spinner svg {
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.75rem;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Grid de playlists */
.youtube-playlists-section .playlists-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  align-items: stretch;
}

/* Ajustes progresivos según el ancho del contenedor de la sección */
@container (min-width: 720px) {
  .youtube-playlists-section .playlists-grid {
    gap: 2.25rem;
  }
}

@container (min-width: 1024px) {
  .youtube-playlists-section .playlists-grid {
    gap: 2.5rem;
  }
}

/* Tarjeta individual de playlist */
.youtube-playlists-section .playlist-card {
  background-color: white;
  border-radius: var(--playlist-border-radius);
  box-shadow: var(--playlist-shadow);
  border: 1px solid var(--playlist-border-color);
  overflow: hidden;
  transition: var(--playlist-transition);
  position: relative;
}

.youtube-playlists-section .playlist-card:hover {
  box-shadow: var(--playlist-shadow-hover);
  transform: translateY(-4px) scale(1.02);
}

/* Miniatura de la playlist */
.youtube-playlists-section .playlist-thumbnail {
  position: relative;
  aspect-ratio: 16/9;
  background-color: #f3f4f6;
  overflow: hidden;
}

.youtube-playlists-section .playlist-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--playlist-transition);
}

.youtube-playlists-section .playlist-card:hover .playlist-thumbnail img {
  transform: scale(1.05);
}

/* Overlay de la miniatura */
.youtube-playlists-section .playlist-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.youtube-playlists-section .playlist-overlay-content {
  color: white;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.youtube-playlists-section .playlist-video-count {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 500;
}

.youtube-playlists-section .playlist-video-count svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
}

.youtube-playlists-section .playlist-badge {
  background-color: rgba(0, 0, 0, 0.5);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  backdrop-filter: blur(4px);
}

/* Contenido de la tarjeta */
.youtube-playlists-section .playlist-content {
  padding: 1.5rem;
}

.youtube-playlists-section .playlist-title {
  font-weight: 700;
  color: var(--playlist-text-primary);
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.youtube-playlists-section .playlist-description {
  color: var(--playlist-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Preview de videos */
.youtube-playlists-section .videos-preview {
  margin-bottom: 1rem;
}

.youtube-playlists-section .videos-preview-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--playlist-text-primary);
  margin-bottom: 0.5rem;
}

.youtube-playlists-section .videos-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.youtube-playlists-section .video-item {
  display: flex;
  align-items: center;
  font-size: 0.75rem;
  color: var(--playlist-text-secondary);
}

.youtube-playlists-section .video-number {
  width: 1rem;
  height: 1rem;
  background-color: #e5e7eb;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.5rem;
  color: var(--playlist-text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.youtube-playlists-section .video-title {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.youtube-playlists-section .more-videos {
  font-size: 0.75rem;
  color: var(--playlist-text-muted);
  font-style: italic;
  margin-top: 0.25rem;
}

/* Botón de acción */
.youtube-playlists-section .playlist-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  background-color: var(--playlist-primary-color);
  color: white;
  font-weight: 600;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: var(--playlist-transition);
  box-shadow: 0 4px 6px -1px rgba(220, 38, 38, 0.2);
}

.youtube-playlists-section .playlist-button:hover {
  background-color: var(--playlist-primary-hover);
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 10px 15px -3px rgba(220, 38, 38, 0.3);
}

.youtube-playlists-section .playlist-button svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
}

/* Call to Action final */
.youtube-playlists-section .cta-container {
  text-align: center;
  margin-top: 4rem;
}

.youtube-playlists-section .cta-card {
  background-color: white;
  border-radius: var(--playlist-border-radius);
  padding: 2rem;
  box-shadow: var(--playlist-shadow);
  border: 1px solid var(--playlist-secondary-color);
}

@media (min-width: 1024px) {
  .youtube-playlists-section .cta-card {
    padding: 3rem;
  }
}

.youtube-playlists-section .cta-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--playlist-text-primary);
  margin-bottom: 1rem;
}

@media (min-width: 1024px) {
  .youtube-playlists-section .cta-title {
    font-size: 1.875rem;
  }
}

.youtube-playlists-section .cta-description {
  font-size: 1.125rem;
  color: var(--playlist-text-secondary);
  margin-bottom: 2rem;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.youtube-playlists-section .cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .youtube-playlists-section .cta-buttons {
    flex-direction: row;
  }
}

.youtube-playlists-section .cta-button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background-color: var(--playlist-primary-color);
  color: white;
  font-weight: 600;
  font-size: 1.125rem;
  border-radius: 0.5rem;
  text-decoration: none;
  box-shadow: var(--playlist-shadow);
  transition: var(--playlist-transition);
}

.youtube-playlists-section .cta-button-primary:hover {
  background-color: var(--playlist-primary-hover);
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--playlist-shadow-hover);
}

.youtube-playlists-section .cta-button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border: 2px solid var(--playlist-primary-color);
  color: var(--playlist-primary-color);
  background-color: transparent;
  font-weight: 600;
  font-size: 1.125rem;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: var(--playlist-transition);
}

.youtube-playlists-section .cta-button-secondary:hover {
  background-color: var(--playlist-secondary-color);
}

.youtube-playlists-section .cta-button-primary span,
.youtube-playlists-section .cta-button-secondary span {
  margin-right: 0.5rem;
}

/* Features grid */
.youtube-playlists-section .features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--playlist-text-secondary);
}

@media (min-width: 640px) {
  .youtube-playlists-section .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.youtube-playlists-section .feature-item {
  display: flex;
  align-items: center;
  justify-content: center;
}

.youtube-playlists-section .feature-item svg {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
  color: #10b981;
}

/* Fallback styles */
.youtube-playlists-section .fallback-container {
  text-align: center;
  margin-top: 2rem;
  padding: 1.5rem;
  background-color: #dbeafe;
  border-radius: var(--playlist-border-radius);
  border: 1px solid #bfdbfe;
}

.youtube-playlists-section .fallback-title {
  color: #1e40af;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.youtube-playlists-section .fallback-description {
  color: #2563eb;
  font-size: 0.875rem;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .youtube-playlists-section {
    padding: 2rem 0 3rem 0;
  }
  
  .youtube-playlists-section .section-header {
    margin-bottom: 2rem;
  }
  
  .youtube-playlists-section .section-title {
    font-size: 1.5rem;
  }
  
  .youtube-playlists-section .section-description {
    font-size: 1rem;
  }
  
  .youtube-playlists-section .playlist-content {
    padding: 1rem;
  }
  
  .youtube-playlists-section .cta-card {
    padding: 1.5rem;
  }
}