[
  {
    "id": "hard-001",
    "url": "https://www.paulgraham.com/",
    "tier": "hard",
    "notes": "1996 nested-table/font typography"
  },
  {
    "id": "hard-002",
    "url": "https://news.ycombinator.com/",
    "tier": "hard",
    "notes": "dense table layout"
  },
  {
    "id": "hard-003",
    "url": "https://en.wikipedia.org/wiki/Cascading_Style_Sheets",
    "tier": "hard",
    "notes": "heavy nested DOM article"
  },
  {
    "id": "hard-004",
    "url": "https://tailwindcss.com/",
    "tier": "hard",
    "notes": "dense component showcase"
  },
  {
    "id": "hard-005",
    "url": "https://developer.mozilla.org/en-US/",
    "tier": "hard",
    "notes": "dense docs"
  },
  {
    "id": "hard-006",
    "url": "https://stripe.com/",
    "tier": "hard",
    "notes": "dense, gradients, complex"
  },
  {
    "id": "hard-007",
    "url": "https://github.com/",
    "tier": "hard",
    "notes": "dense landing"
  },
  {
    "id": "hard-008",
    "url": "https://www.apple.com/",
    "tier": "hard",
    "notes": "complex typography, scroll anim"
  },
  {
    "id": "hard-009",
    "url": "https://www.engadget.com/",
    "tier": "hard",
    "notes": "tech news, dense"
  },
  {
    "id": "hard-010",
    "url": "https://www.theregister.com/",
    "tier": "hard",
    "notes": "tech news, dense"
  },
  {
    "id": "hard-011",
    "url": "https://react.dev/",
    "tier": "hard",
    "notes": "docs, dense"
  },
  {
    "id": "hard-012",
    "url": "https://www.netlify.com/",
    "tier": "hard",
    "notes": "dense marketing"
  },
  {
    "id": "hard-013",
    "url": "https://www.smashingmagazine.com/",
    "tier": "hard",
    "notes": "dense editorial"
  },
  {
    "id": "hard-014",
    "url": "https://css-tricks.com/",
    "tier": "hard",
    "notes": "dense content"
  },
  {
    "id": "hard-015",
    "url": "https://www.sitepoint.com/",
    "tier": "hard",
    "notes": "editorial, dense"
  },
  {
    "id": "hard-016",
    "url": "https://dev.to/",
    "tier": "hard",
    "notes": "dense content feed"
  },
  {
    "id": "hard-017",
    "url": "https://www.producthunt.com/",
    "tier": "hard",
    "notes": "dense product feed"
  },
  {
    "id": "hard-018",
    "url": "https://www.awwwards.com/",
    "tier": "hard",
    "notes": "design gallery"
  },
  {
    "id": "hard-019",
    "url": "https://medium.com/",
    "tier": "hard",
    "notes": "editorial typography"
  },
  {
    "id": "hard-020",
    "url": "https://hackernoon.com/",
    "tier": "hard",
    "notes": "editorial feed, dense"
  },
  {
    "id": "hard-021",
    "url": "https://www.gov.uk/",
    "tier": "hard",
    "notes": "dense govt, static"
  },
  {
    "id": "hard-022",
    "url": "https://blog.cloudflare.com/",
    "tier": "hard",
    "notes": "dense technical blog"
  },
  {
    "id": "hard-023",
    "url": "https://www.nasa.gov/",
    "tier": "hard",
    "notes": "dense, many media assets"
  },
  {
    "id": "hard-024",
    "url": "https://www.mozilla.org/en-US/",
    "tier": "hard",
    "notes": "dense marketing"
  },
  {
    "id": "hard-025",
    "url": "https://web.dev/",
    "tier": "hard",
    "notes": "dense docs/articles"
  },
  {
    "id": "hard-026",
    "url": "https://www.nike.com/",
    "tier": "hard",
    "notes": "ecommerce; dense, popups"
  },
  {
    "id": "hard-027",
    "url": "https://www.zara.com/",
    "tier": "hard",
    "notes": "ecommerce; minimalist complex grid"
  },
  {
    "id": "hard-028",
    "url": "https://www.ssense.com/",
    "tier": "hard",
    "notes": "ecommerce; editorial luxury, dense"
  },
  {
    "id": "hard-029",
    "url": "https://www.gymshark.com/",
    "tier": "hard",
    "notes": "ecommerce; Shopify DTC, popups"
  },
  {
    "id": "hard-030",
    "url": "https://www.sephora.com/",
    "tier": "hard",
    "notes": "ecommerce; very dense, popups"
  },
  {
    "id": "hard-031",
    "url": "https://www.etsy.com/",
    "tier": "hard",
    "notes": "ecommerce; dense product grid"
  },
  {
    "id": "hard-032",
    "url": "https://www.uniqlo.com/us/en/",
    "tier": "hard",
    "notes": "ecommerce; dense, complex"
  }
]