.playback-continuity-demo {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.playback-continuity-demo h2 {
  text-align: center;
  color: var(--text-primary, #333);
  margin-bottom: 30px;
}

.demo-section {
  background: var(--surface-color, #f8f9fa);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid var(--border-color, #e1e5e9);
}

.demo-section h3 {
  margin: 0 0 15px 0;
  color: var(--text-primary, #333);
  font-size: 18px;
  font-weight: 600;
}

/* Connection Controls */
.connection-controls {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.btn-offline,
.btn-online {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn-offline {
  background: #ff6b6b;
  color: white;
}

.btn-offline:hover {
  background: #ff5252;
}

.btn-online {
  background: #51cf66;
  color: white;
}

.btn-online:hover {
  background: #40c057;
}

/* Track Info */
.track-info {
  margin-bottom: 15px;
}

.track-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary, #333);
}

.track-artist {
  font-size: 14px;
  color: var(--text-secondary, #666);
}

/* Playback Controls */
.playback-controls {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.play-pause-btn {
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--accent-color, #007bff);
  color: white;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.play-pause-btn:hover {
  transform: scale(1.05);
}

.play-pause-btn.playing {
  background: #ff6b6b;
}

.position-control {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 200px;
}

.position-slider,
.volume-slider {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--border-color, #e1e5e9);
  outline: none;
  cursor: pointer;
}

.position-slider::-webkit-slider-thumb,
.volume-slider::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-color, #007bff);
  cursor: pointer;
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 120px;
}

/* Test Fallback */
.test-fallback-btn {
  padding: 10px 20px;
  background: var(--accent-color, #007bff);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.test-fallback-btn:hover {
  background: var(--accent-color-hover, #0056b3);
}

.fallback-result {
  margin-top: 10px;
  padding: 10px;
  background: var(--info-bg, #e3f2fd);
  border-radius: 6px;
  font-family: monospace;
  font-size: 13px;
  color: var(--info-text, #1565c0);
}

/* State Display */
.state-display {
  background: var(--code-bg, #f5f5f5);
  border-radius: 8px;
  padding: 15px;
}

.state-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.state-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color, #e1e5e9);
}

.state-item:last-child {
  border-bottom: none;
}

.state-item label {
  font-weight: 500;
  color: var(--text-secondary, #666);
}

.state-item span {
  font-family: monospace;
  color: var(--text-primary, #333);
}

.no-state {
  text-align: center;
  color: var(--text-secondary, #666);
  font-style: italic;
}

/* Offline Info */
.offline-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
}

.offline-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  background: var(--surface-secondary, white);
  border-radius: 6px;
  border: 1px solid var(--border-color, #e1e5e9);
}

.offline-item label {
  font-weight: 500;
  color: var(--text-secondary, #666);
}

.offline-item span {
  font-weight: 600;
  color: var(--text-primary, #333);
}

/* Connection Details */
.connection-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  background: var(--surface-secondary, white);
  border-radius: 6px;
  border: 1px solid var(--border-color, #e1e5e9);
}

.detail-item label {
  font-weight: 500;
  color: var(--text-secondary, #666);
}

.detail-item span {
  font-weight: 600;
}

.detail-item .online {
  color: #51cf66;
}

.detail-item .offline {
  color: #ff6b6b;
}

.detail-item .quality-excellent {
  color: #51cf66;
}

.detail-item .quality-good {
  color: #74c0fc;
}

.detail-item .quality-poor {
  color: #ffd43b;
}

.detail-item .quality-offline {
  color: #ff6b6b;
}

/* Responsive Design */
@media (max-width: 768px) {
  .playback-continuity-demo {
    padding: 15px;
  }
  
  .demo-section {
    padding: 15px;
  }
  
  .playback-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .position-control {
    min-width: auto;
  }
  
  .state-grid {
    grid-template-columns: 1fr;
  }
  
  .connection-details,
  .offline-info {
    grid-template-columns: 1fr;
  }
}