Make my social posts accessible with alt text and captions

Make my social media content accessible. Post copy: [PASTE] Images or video: [DESCRIBE EACH IMAGE or paste a video transcript] Platform: [LIST] Purpose of each visual: [e.g. "chart showing growth", "team photo at event"] Do this: 1. Write alt text for each image: describe what matters for the post's purpose, under ~125 characters where possible, no "image of", include any text that appears in the image. For charts, state the key takeaway and the main data points. 2. Rewrite the caption for screen readers: hashtags in CamelCase (#ContentMarketing), emojis kept to a few and not in the middle of sentences, no fancy Unicode fonts, line breaks for scannability. 3. For video: confirm captions, write on-screen text for key points, and draft an audio description note if visuals carry meaning not spoken aloud. 4. If I've shared the image itself, check color contrast and how much text is baked into the graphic; otherwise give me a quick contrast and on-image-text checklist to run myself. 5. Flag flashing content or anything that could trigger photosensitivity. Return: the revised post, alt text per image, and a short checklist I can reuse for future posts.