Email Header Banner — Campaign

Create a professional email marketing header banner:

Brand: [BRAND_NAME], Industry: [INDUSTRY], Colors: [BRAND_COLORS]
Email type: [EMAIL_TYPE] (newsletter / promotional / welcome / seasonal)
Dimensions: 600px wide × 200-250px tall (standard email header)

Content:
- Hero headline: "[HEADLINE]" — large, bold, instantly readable
- Subheadline: "[SUBHEADLINE]" — supporting context
- CTA element (optional): "[CTA_TEXT]" — contrasting color button

Background: [BACKGROUND] (photographic with gradient scrim / illustrated pattern / clean gradient / bold solid)
Brand compliance: Logo placement top-left or top-center, brand font, color palette adherence
Seasonal elements: Subtle, tasteful [SEASON] accents — avoid generic clip art
Technical: Dark mode compatible (avoid pure white backgrounds), text readable without images loading
Mobile: Critical info in top 150px (preview-pane safe)

[Highlighted] words are yours to fill in.