AI Podcast Transcript Editor Web App Timeline

Build ai podcast transcript editor web app timeline as a production-ready interface, not a marketing mockup. Show waveform timeline, transcript blocks, AI cleanup suggestions, speaker labels, clip markers, and export options. Include waveform timeline, transcript blocks, AI cleanup suggestions, speaker labels, and clip markers while keeping the product useful for podcast producers. Make the hierarchy easy to scan, with meaningful labels, realistic microcopy, responsive spacing, hover or tap states, and accessible contrast. Add empty, loading, and error states where they would naturally appear, so the interface feels like a complete UI/UX case rather than a single decorative screen.