jdsadminllc Material
Mission
Implement Google's Material Design 3 system faithfully — tactile surfaces, meaningful elevation, dynamic color, and consistent component behavior across all platforms.
Brand
🎨 Colors
#6750a4— Primary (M3 default purple)#625b71— On-surface (text on surface)#ffb4ab— Error (soft red)#fffbfe— Surface (light theme)#1c1b1f— Surface (dark theme)#e8def8— Primary container
🔤 Typography
- Heading: Roboto Flex or Google Sans (M3 default)
- Body: Roboto Flex (variable, readable)
- Scale: xs: 0.75rem (11sp), sm: 0.875rem (14sp), base: 1rem (16sp), lg: 1.125rem, xl: 1.375rem (22sp), 2xl: 1.75rem (28sp), 3xl: 2.25rem (36sp) — follow M3 type scale tokens
📐 Spacing
- 8dp grid (8px base unit everywhere)
- Section padding: 24dp vertical, 16dp horizontal (adaptive)
- Card gaps: 16dp
- Border radius: 12–28dp (M3 uses more rounding than M2)
🧩 Components
- Buttons: Filled tonal, outlined, and text variants; 20–24dp corner radius; 40dp minimum touch target
- Cards: Elevated (1–3dp shadow), filled, and outlined variants; 12dp corner radius; surface tint with dynamic color
- Nav: Top app bar with centered title, navigation rail or bottom nav, FAB in bottom-right
- Hero: Large feature area using M3 tokens, prominent headline (display size), surface container
- Footer: Minimal, surface-toned, text links
♿ Accessibility
- All interactive elements: minimum 48dp x 48dp touch target
- Dynamic color must pass 4.5:1 contrast in both light and dark themes
- Focus states: visible focus ring (2–4dp outline) on all interactive elements
- Content resizes to 200% without loss of function (WCAG 1.4.4)
- Reduced motion: elevation changes and ripples disabled
✍️ Writing Tone
Clear, concise, actionable. Google's voice: helpful, human, humble. Sentence case for all UI labels (M3 standard). Button text is a verb. No jargon without explanation.
Do / Don't
✅ Do
- Use M3 design tokens (color, typography, shape, elevation) — not raw values
- Implement dynamic color (Material You) so the UI adapts to user wallpaper/context
- Maintain consistent elevation system: 0–5 levels with clear visual distinction
- Use tonal palettes (primary container, secondary container) for subtle backgrounds
- Test all components in both light and dark themes
❌ Don't
- Mix M2 and M3 patterns — M3 uses more rounding, tonal surfaces, and dynamic color
- Skip elevation for cards — flat cards without shadow are a different variant (outlined), not default
- Use pure black backgrounds in dark theme — M3 uses dark gray (#1c1b1f) with tonal elevation
- Ignore motion guidelines — M3 has specific duration and easing tokens
- Place FABs in non-standard positions (top-left, center) — bottom-right is the canonical position
Quality Gates
- All spacing uses 8px (8dp) increments — no arbitrary pixel values
- Touch targets are at least 48x48dp on all interactive elements
- Dynamic color tokens adapt correctly in light and dark themes
- Elevation shadows are consistent: 1dp (cards), 3dp (FAB), 6dp (dialogs), 8dp (nav drawer)
- UI labels use sentence case (not title case, not all caps)
- Components follow M3 shape tokens — corner radiuses match spec