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Homepage (site/index.html): integration-v14 promoted, Writings section integrated with 33 pieces clustered by type (stories/essays/miscellany), Writings welcome lightbox, content frame at 98% opacity. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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+# Responsive Design Reference
+
+Detailed reference for implementing responsive, mobile-first designs.
+
+## Mobile-First Approach
+
+Always start with mobile design, then progressively enhance for larger screens.
+
+**Why Mobile-First:**
+- Forces focus on essential content
+- Easier to scale up than scale down
+- Better performance on mobile devices
+- Aligns with usage patterns (mobile-first web)
+
+## Breakpoint Strategy
+
+### Standard Breakpoints
+
+```css
+/* Mobile First Approach */
+/* Base styles: 0-640px (mobile) */
+
+/* Small tablets and large phones */
+@media (min-width: 640px) { }
+
+/* Tablets */
+@media (min-width: 768px) { }
+
+/* Small laptops */
+@media (min-width: 1024px) { }
+
+/* Desktops */
+@media (min-width: 1280px) { }
+
+/* Large desktops */
+@media (min-width: 1536px) { }
+```
+
+### Specific Breakpoint Ranges
+
+| Range | Pixels | Target Devices | Layout Strategy |
+|-------|--------|----------------|-----------------|
+| **XS** | 0-479px | Small phones (iPhone SE, older Android) | Single column, stacked navigation, large touch targets (min 44px) |
+| **SM** | 480-767px | Large phones (iPhone 14, most modern phones) | Single column, simplified UI, bottom navigation, reduced complexity |
+| **MD** | 768-1023px | Tablets (iPad, Android tablets) | 2 columns possible, sidebar navigation, some desktop features |
+| **LG** | 1024-1439px | Small laptops, landscape tablets | Multi-column layouts, full navigation, desktop UI patterns |
+| **XL** | 1440px+ | Desktop monitors, large screens | Max-width containers, multi-panel layouts, advanced features visible |
+
+**Mobile Simplification Examples:**
+
+- **Navigation**: Hamburger menu (mobile) → Full nav bar (desktop)
+- **Forms**: Stacked fields (mobile) → Side-by-side fields (desktop)
+- **Content**: Single column (mobile) → Multi-column grid (desktop)
+- **Actions**: Fixed bottom bar (mobile) → Inline buttons (desktop)
+- **Tables**: Collapsed cards (mobile) → Full data table (desktop)
+- **Sidebars**: Hidden/collapsible (mobile) → Always visible (desktop)
+- **Filters**: Modal/drawer (mobile) → Sidebar panel (desktop)
+
+### Tailwind Responsive Classes
+
+```tsx
+<div className="
+  w-full          // mobile: full width
+  sm:w-1/2        // small: half width
+  md:w-1/3        // medium: third width
+  lg:w-1/4        // large: quarter width
+">
+  Responsive width
+</div>
+```
+
+## Responsive Images
+
+### Using srcset for Responsive Images
+
+```tsx
+<img
+  src="image-800w.jpg"
+  srcSet="
+    image-400w.jpg 400w,
+    image-800w.jpg 800w,
+    image-1200w.jpg 1200w
+  "
+  sizes="
+    (max-width: 640px) 100vw,
+    (max-width: 1024px) 50vw,
+    33vw
+  "
+  alt="Descriptive alt text"
+  loading="lazy"
+/>
+```
+
+### Next.js Image Component
+
+```tsx
+import Image from 'next/image';
+
+<Image
+  src="/hero-image.jpg"
+  alt="Descriptive alt text"
+  width={1200}
+  height={600}
+  priority // for above-the-fold images
+  className="w-full h-auto"
+/>
+```
+
+## Responsive Typography
+
+### Fluid Typography with Tailwind
+
+```tsx
+<h1 className="
+  text-3xl      // mobile: 30px
+  sm:text-4xl   // small: 36px
+  md:text-5xl   // medium: 48px
+  lg:text-6xl   // large: 60px
+">
+  Responsive Headline
+</h1>
+```
+
+### Fluid Typography with CSS Clamp
+
+```css
+h1 {
+  /* min: 2rem (32px), preferred: 5vw, max: 4rem (64px) */
+  font-size: clamp(2rem, 5vw, 4rem);
+  line-height: 1.2;
+}
+
+p {
+  /* min: 1rem (16px), preferred: 2.5vw, max: 1.25rem (20px) */
+  font-size: clamp(1rem, 2.5vw, 1.25rem);
+  line-height: 1.6;
+}
+```
+
+## Responsive Layouts
+
+### CSS Grid Responsive Pattern
+
+```tsx
+<div className="
+  grid
+  grid-cols-1        // mobile: 1 column
+  sm:grid-cols-2     // small: 2 columns
+  md:grid-cols-3     // medium: 3 columns
+  lg:grid-cols-4     // large: 4 columns
+  gap-4              // consistent gap
+">
+  {items.map(item => (
+    <Card key={item.id}>{item.content}</Card>
+  ))}
+</div>
+```
+
+### Flexbox Responsive Pattern
+
+```tsx
+<div className="
+  flex
+  flex-col           // mobile: stack vertically
+  md:flex-row        // medium+: horizontal layout
+  gap-6
+  items-center
+">
+  <div className="w-full md:w-1/2">Content Left</div>
+  <div className="w-full md:w-1/2">Content Right</div>
+</div>
+```
+
+## Touch-Friendly Interfaces
+
+### Touch Target Sizing
+
+```tsx
+// Minimum 44x44px touch targets
+<button className="
+  min-w-[44px]
+  min-h-[44px]
+  px-4 py-2
+  rounded-lg
+  touch-manipulation // prevents 300ms tap delay
+">
+  Tap Me
+</button>
+```
+
+### Touch Gestures
+
+```tsx
+// Consider common mobile gestures
+<div className="
+  overflow-x-auto    // horizontal scroll
+  snap-x             // snap scrolling
+  snap-mandatory
+  overscroll-contain // prevent bounce on mobile
+">
+  {/* Scrollable content */}
+</div>
+```
+
+## Navigation Patterns
+
+### Mobile Menu Pattern
+
+```tsx
+import { useState } from 'react';
+import { List, X } from '@phosphor-icons/react';
+
+export function MobileNav() {
+  const [isOpen, setIsOpen] = useState(false);
+
+  return (
+    <>
+      {/* Mobile menu button */}
+      <button
+        onClick={() => setIsOpen(!isOpen)}
+        className="md:hidden p-2"
+        aria-label="Toggle menu"
+      >
+        {isOpen ? <X size={24} /> : <List size={24} />}
+      </button>
+
+      {/* Mobile menu overlay */}
+      {isOpen && (
+        <div className="
+          fixed inset-0 z-50 bg-white
+          md:hidden
+        ">
+          <nav className="p-6 space-y-4">
+            {/* Navigation items */}
+          </nav>
+        </div>
+      )}
+
+      {/* Desktop navigation */}
+      <nav className="hidden md:flex gap-6">
+        {/* Navigation items */}
+      </nav>
+    </>
+  );
+}
+```
+
+### Sticky Navigation
+
+```tsx
+<header className="
+  sticky top-0 z-40
+  bg-white/80
+  backdrop-blur-md
+  border-b border-slate-200
+">
+  <nav className="container mx-auto px-4 py-4">
+    {/* Navigation content */}
+  </nav>
+</header>
+```
+
+## Responsive Forms
+
+### Form Layout Pattern
+
+```tsx
+<form className="space-y-6">
+  {/* Full width on mobile, side-by-side on desktop */}
+  <div className="
+    grid
+    grid-cols-1
+    md:grid-cols-2
+    gap-4
+  ">
+    <div>
+      <label htmlFor="firstName" className="block text-sm font-medium mb-1">
+        First Name
+      </label>
+      <input
+        id="firstName"
+        type="text"
+        className="
+          w-full px-4 py-2
+          border border-slate-300
+          rounded-lg
+          focus:ring-2 focus:ring-blue-500
+          touch-manipulation
+        "
+      />
+    </div>
+
+    <div>
+      <label htmlFor="lastName" className="block text-sm font-medium mb-1">
+        Last Name
+      </label>
+      <input
+        id="lastName"
+        type="text"
+        className="
+          w-full px-4 py-2
+          border border-slate-300
+          rounded-lg
+          focus:ring-2 focus:ring-blue-500
+          touch-manipulation
+        "
+      />
+    </div>
+  </div>
+
+  {/* Full width textarea */}
+  <div>
+    <label htmlFor="message" className="block text-sm font-medium mb-1">
+      Message
+    </label>
+    <textarea
+      id="message"
+      rows={4}
+      className="
+        w-full px-4 py-2
+        border border-slate-300
+        rounded-lg
+        focus:ring-2 focus:ring-blue-500
+        touch-manipulation
+      "
+    />
+  </div>
+
+  <button
+    type="submit"
+    className="
+      w-full md:w-auto
+      px-8 py-3
+      bg-blue-600 text-white
+      rounded-lg
+      hover:bg-blue-700
+      transition-colors
+      touch-manipulation
+    "
+  >
+    Submit
+  </button>
+</form>
+```
+
+## Responsive Content Hiding
+
+### Show/Hide Based on Screen Size
+
+```tsx
+<div>
+  {/* Show only on mobile */}
+  <div className="block md:hidden">
+    Mobile content
+  </div>
+
+  {/* Show only on tablet and up */}
+  <div className="hidden md:block">
+    Desktop content
+  </div>
+
+  {/* Show only on desktop */}
+  <div className="hidden lg:block">
+    Large screen content
+  </div>
+</div>
+```
+
+## Performance Optimization
+
+### Lazy Loading Images
+
+```tsx
+<img
+  src="image.jpg"
+  alt="Description"
+  loading="lazy"
+  className="w-full h-auto"
+/>
+```
+
+### Responsive Video
+
+```tsx
+<div className="relative aspect-video">
+  <video
+    className="absolute inset-0 w-full h-full object-cover"
+    poster="thumbnail.jpg"
+    controls
+    preload="metadata"
+  >
+    <source src="video-mobile.mp4" media="(max-width: 640px)" />
+    <source src="video-desktop.mp4" />
+  </video>
+</div>
+```
+
+## Testing Responsive Designs
+
+### Browser DevTools
+
+1. Open Chrome/Firefox DevTools (F12)
+2. Toggle device toolbar (Ctrl+Shift+M)
+3. Test common breakpoints:
+   - iPhone SE (375px)
+   - iPhone 12 Pro (390px)
+   - iPad (768px)
+   - iPad Pro (1024px)
+   - Desktop (1280px+)
+
+### Real Device Testing
+
+**Essential devices to test:**
+- Small phone (iPhone SE, Android small)
+- Large phone (iPhone Pro Max, Android large)
+- Tablet (iPad, Android tablet)
+- Desktop (various resolutions)
+
+### Playwright Testing
+
+```typescript
+// Use playwright MCP to test responsive breakpoints
+await page.setViewportSize({ width: 375, height: 667 }); // iPhone SE
+await page.screenshot({ path: 'mobile.png' });
+
+await page.setViewportSize({ width: 768, height: 1024 }); // iPad
+await page.screenshot({ path: 'tablet.png' });
+
+await page.setViewportSize({ width: 1920, height: 1080 }); // Desktop
+await page.screenshot({ path: 'desktop.png' });
+```
+
+## Common Responsive Patterns
+
+### Card Grid
+
+```tsx
+<div className="
+  grid
+  grid-cols-1
+  sm:grid-cols-2
+  lg:grid-cols-3
+  xl:grid-cols-4
+  gap-6
+  p-4
+">
+  {items.map(item => (
+    <article
+      key={item.id}
+      className="
+        bg-white
+        rounded-lg
+        border border-slate-200
+        overflow-hidden
+        hover:shadow-lg
+        transition-shadow
+      "
+    >
+      <img
+        src={item.image}
+        alt={item.title}
+        className="w-full h-48 object-cover"
+        loading="lazy"
+      />
+      <div className="p-4">
+        <h3 className="text-lg font-semibold mb-2">{item.title}</h3>
+        <p className="text-slate-600">{item.description}</p>
+      </div>
+    </article>
+  ))}
+</div>
+```
+
+### Hero Section
+
+```tsx
+<section className="
+  relative
+  min-h-screen
+  flex items-center
+  px-4 sm:px-6 lg:px-8
+">
+  <div className="
+    max-w-7xl mx-auto w-full
+    grid grid-cols-1 lg:grid-cols-2
+    gap-12
+    items-center
+  ">
+    <div className="space-y-6">
+      <h1 className="
+        text-4xl sm:text-5xl lg:text-6xl
+        font-bold
+        tracking-tight
+      ">
+        Your Headline Here
+      </h1>
+      <p className="
+        text-lg sm:text-xl
+        text-slate-600
+        max-w-2xl
+      ">
+        Supporting description that works across all screen sizes.
+      </p>
+      <div className="
+        flex flex-col sm:flex-row
+        gap-4
+      ">
+        <button className="
+          px-8 py-3
+          bg-blue-600 text-white
+          rounded-lg
+          hover:bg-blue-700
+          transition-colors
+        ">
+          Primary Action
+        </button>
+        <button className="
+          px-8 py-3
+          border-2 border-slate-300
+          rounded-lg
+          hover:border-slate-400
+          transition-colors
+        ">
+          Secondary Action
+        </button>
+      </div>
+    </div>
+    <div className="
+      relative
+      aspect-square
+      rounded-2xl
+      overflow-hidden
+    ">
+      <img
+        src="hero-image.jpg"
+        alt="Hero"
+        className="w-full h-full object-cover"
+      />
+    </div>
+  </div>
+</section>
+```
+
+## Accessibility Considerations
+
+### Focus Management on Mobile
+
+```tsx
+<button
+  className="
+    focus:outline-none
+    focus:ring-4 focus:ring-blue-500
+    focus:ring-offset-2
+    rounded-lg
+  "
+  aria-label="Descriptive label"
+>
+  Action
+</button>
+```
+
+### Skip Links
+
+```tsx
+<a
+  href="#main-content"
+  className="
+    sr-only
+    focus:not-sr-only
+    focus:absolute
+    focus:top-4 focus:left-4
+    focus:z-50
+    focus:px-4 focus:py-2
+    focus:bg-blue-600 focus:text-white
+    focus:rounded-lg
+  "
+>
+  Skip to main content
+</a>
+```
+
+## Best Practices Summary
+
+✅ **Do:**
+- Start with mobile design first
+- Use relative units (rem, em, %) for flexibility
+- Test on real devices, not just emulators
+- Ensure touch targets are at least 44x44px
+- Use semantic HTML for better accessibility
+- Implement lazy loading for images and videos
+- Optimize assets for mobile networks
+- Use CSS Grid and Flexbox for flexible layouts
+- Provide adequate spacing between interactive elements
+
+❌ **Don't:**
+- Design for desktop first and scale down
+- Use fixed pixel widths for layout containers
+- Rely solely on browser DevTools for testing
+- Make touch targets too small
+- Forget keyboard navigation
+- Load all images eagerly
+- Use large unoptimized images on mobile
+- Use complex nested tables for layout
+- Place important actions in hard-to-reach areas