Neuphorism Design System

A soft, tactile design system featuring extruded shadows, pressed states, and muted color palettes that create depth through light simulation rather than hard borders.

Core Aesthetic

Neuphorism creates UI that appears carved from the surface:

• Elements "extrude" with dual shadows (dark bottom-right, light top-left)
• Interactive elements "press" into the surface on activation
• Soft, muted backgrounds with subtle gradients
• Clean Inter typography at light-to-medium weights
• Generous spacing and rounded corners

Quick Reference

Shadows (The Heart of Neuphorism)

/* Extruded - default raised state */
box-shadow: 12px 12px 24px #c5c8ce, -12px -12px 24px #ffffff;

/* Pressed - active/focused state */
box-shadow: inset 6px 6px 12px #c5c8ce, inset -6px -6px 12px #ffffff;

/* Elevated - hover state */
box-shadow: 16px 16px 32px #c5c8ce, -16px -16px 32px #ffffff;

Color Palette

Typography

font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
/* Weights: 300 (light), 400 (regular), 500 (medium) */

Spacing Scale

4px → 8px → 12px → 16px → 24px → 32px → 48px → 64px

Border Radius

• Small: 8px (inputs, small buttons)
• Medium: 12px (buttons, cards)
• Large: 20px (containers, heroes)

Implementation Patterns

Pattern 1: CSS Variables (Vanilla/Any Framework)

Include at document root for consistent theming:

:root {
  --neu-bg: #e6e8ed;
  --neu-shadow-dark: #c5c8ce;
  --neu-shadow-light: #ffffff;
  --neu-text: #4a5568;
  --neu-heading: #2d3748;
  --neu-accent: #667eea;
  --neu-radius: 12px;
  --neu-extruded: 12px 12px 24px var(--neu-shadow-dark), -12px -12px 24px var(--neu-shadow-light);
  --neu-pressed: inset 6px 6px 12px var(--neu-shadow-dark), inset -6px -6px 12px var(--neu-shadow-light);
}

Pattern 2: Component States

Every interactive element needs three shadow states:

.neu-element {
  box-shadow: var(--neu-extruded);
  transition: box-shadow 250ms ease, transform 250ms ease;
}
.neu-element:hover {
  box-shadow: 16px 16px 32px var(--neu-shadow-dark), -16px -16px 32px var(--neu-shadow-light);
  transform: translateY(-2px);
}
.neu-element:active, .neu-element:focus {
  box-shadow: var(--neu-pressed);
  transform: translateY(0);
}

Pattern 3: Dark Mode

Toggle via data-theme="dark" on root element:

:root[data-theme="dark"] {
  --neu-bg: #2d3748;
  --neu-shadow-dark: #1a202c;
  --neu-shadow-light: #3d4a5c;
  --neu-text: #e2e8f0;
  --neu-heading: #f7fafc;
}

Component Reference

See references/components.md for complete component CSS (buttons, cards, inputs, navigation, heroes).

See references/tailwind-config.md for Tailwind CSS configuration.

Accessibility Notes

1. Focus visibility: Add visible ring on :focus-visible:

   cssCopy

   .neu-element:focus-visible {
     box-shadow: var(--neu-pressed), 0 0 0 3px rgba(102, 126, 234, 0.3);
   }
   

2. Reduced motion: Wrap animations in media query:

   cssCopy

   @media (prefers-reduced-motion: no-preference) {
     .neu-element { transition: all 250ms ease; }
   }
   

3. Touch targets: Ensure minimum 44×44px for mobile.

4. Contrast: All text colors pass WCAG AA against backgrounds.

Usage Workflow

1. Set background to #e6e8ed (light) or #2d3748 (dark)
2. Apply CSS variables at :root
3. Import Inter font (weights 300, 400, 500)
4. Use extruded shadow for raised elements
5. Use pressed shadow for inputs and active states
6. Apply transitions for smooth state changes