feat: update slide deck

skills/baoyu-slide-deck/references/styles/minimal.md

@@ -1,29 +1,64 @@
 # minimal
 
-Ultra-clean, zen-like, focused
+Ultra-clean keynote style with maximum whitespace and zen-like simplicity
 
 ## Design Aesthetic
 
-Maximum whitespace, single focal points, elegant typography
+Maximum whitespace with minimal elements. Zen-like simplicity where every element earns its place. Premium, refined aesthetic suitable for executive audiences. Less is more - remove until nothing more can be taken away.
 
-## Color Palette
+## Background
 
-- Background: Pure white (#FFFFFF)
-- Primary Text: Pure black (#000000)
-- Accent: Single accent (content-derived)
+- Color: Pure White (#FFFFFF)
+- Texture: None - absolute clean, no grain or patterns
 
 ## Typography
 
-- Primary Font: Helvetica Neue (headlines)
-- Secondary Font: Garamond (body)
+### Primary Font (Headlines)
+
+Clean geometric sans-serif like SF Pro Display, Inter, or Helvetica Neue. Light to medium weight for elegant restraint. Generous letter-spacing. Large scale for impact without boldness.
+
+### Secondary Font (Body)
+
+Same family as headlines in lighter weight. Minimal size contrast. Clean, airy feeling throughout.
+
+## Color Palette
+
+| Role | Color | Hex | Usage |
+|------|-------|-----|-------|
+| Background | Pure White | #FFFFFF | Primary background |
+| Primary Text | Near Black | #1A1A1A | Headlines, body |
+| Secondary Text | Medium Gray | #6B7280 | Captions, metadata |
+| Accent | Single Brand Color | #2563EB | One accent only, sparingly |
+| Dividers | Light Gray | #E5E7EB | Subtle separators |
 
 ## Visual Elements
 
-- Maximum whitespace
-- Single focal points
-- Hairline rules
-- Elegant typography
+- Single accent color used sparingly
+- Thin hairline rules for separation
+- Generous margins (minimum 15% on all sides)
+- Center or left-aligned layouts
+- Simple geometric shapes only when necessary
+- No decorative elements
+- Data visualizations in single color or grayscale
+
+## Style Rules
+
+### Do
+
+- Embrace empty space as a design element
+- Use single accent color only
+- Keep text minimal (10 words or less per slide)
+- Create breathing room between elements
+- Use scale to create hierarchy
+
+### Don't
+
+- Fill empty space with decoration
+- Use multiple accent colors
+- Add icons or illustrations unless essential
+- Create dense information layouts
+- Add slide numbers, footers, or logos
 
 ## Best For
 
-Keynotes, philosophical content, product launches
+Executive briefings, keynote presentations, premium brand communications, minimalist products, investor meetings, high-level strategy