---
style:
  layers:
    - id: admin4-boundary
      type: line
      filter:
        - all
        - - any
          - [==, [get, "admin_level"], "4"]
      line-cap: round
      line-color: "#f63c"
      line-width: 4

    - id: admin6-boundary
      type: line
      filter:
        - all
        - - any
          - [==, [get, "admin_level"], "6"]
      line-cap: round
      line-color: "#f63c"
      line-width: 3

    - id: gravel-tracks
      type: line
      filter:
        - all
        - [==, [get, highway], track]
      line-cap: round
      line-width:
        - case
        - - all
          - [==, [get, tracktype], grade3]
          - [==, [get, surface], compacted]
          - [==, [get, smoothness], bad]
        - 3
        - - match
          - [get, tracktype]
          - grade2
          - 3
          - grade3
          - 2
          - 1
        
      line-color:
        - case
        - - all
          - [==, [get, tracktype], grade3]
          - [==, [get, surface], compacted]
          - [==, [get, smoothness], bad]
        - "#448"
        - - match
          - [get, tracktype]
          - grade2
          - "#448"
          - grade3
          - "#66a"
          - "#0004"
---

rel(62376) -> .outer;

(
  .outer;
);


out geom;

.outer map_to_area -> .boundary;

// Select all tracks, apply styles conditionally later:
way(area.boundary)["highway"="track"];

out geom;