{
  "root": {
    "nodeId": "gen-project-shell",
    "kind": "project-shell",
    "pageIds": [
      "page-desktop",
      "page-desktop-settings",
      "page-mobile"
    ],
    "sharedRegions": [
      "brand css variables",
      "color palette",
      "glassmorphism mixin"
    ],
    "privateRegions": [],
    "mutableSlots": ["pageTitle", "viewportLayout"],
    "status": "generated",
    "children": [
      {
        "nodeId": "gen-page-desktop",
        "kind": "page-leaf",
        "pageIds": ["page-desktop"],
        "output": "pages/desktop.html",
        "sharedRegions": [],
        "privateRegions": [
          "sidebar with two-level nav",
          "search bar with engine selector",
          "link card grid"
        ],
        "mutableSlots": ["pageTitle"],
        "status": "generated",
        "children": []
      },
      {
        "nodeId": "gen-page-desktop-settings",
        "kind": "page-leaf",
        "pageIds": ["page-desktop-settings"],
        "output": "pages/desktop-settings.html",
        "sharedRegions": [],
        "privateRegions": [
          "settings popover panel",
          "theme switch (light/dark/auto)",
          "accent color picker",
          "background image picker"
        ],
        "mutableSlots": ["pageTitle"],
        "status": "generated",
        "children": []
      },
      {
        "nodeId": "gen-page-mobile",
        "kind": "page-leaf",
        "pageIds": ["page-mobile"],
        "output": "pages/mobile.html",
        "sharedRegions": [],
        "privateRegions": [
          "top row: hamburger + search + settings gear",
          "navigation drawer (avatar/profile relocated here)",
          "vertical link list",
          "FAB"
        ],
        "mutableSlots": ["pageTitle"],
        "status": "generated",
        "children": []
      }
    ]
  }
}