radix-tree.d2

# Flash Indexer: Radix Tree (with workers, depth gradient, edge labels added in post)
# Layout: ELK (better for pure tree structures; TALA places nodes non-deterministically)
...@theme.d2

direction: down

root: Root { class: neutral }

b0: "Block 0\nW0, W1, W2" { class: depth_0 }
b0p: "Block 0'\nW3" { class: depth_0 }

b1: "Block 1\nW0, W1, W2" { class: depth_1 }

b2: "Block 2\nW0, W1" { class: depth_2 }
b2p: "Block 2'\nW2" { class: depth_2 }

b3: "Block 3\nW0" { class: depth_3 }

root -> b0 { class: traversal }
root -> b0p { class: traversal }
b0 -> b1 { class: traversal }
b1 -> b2 { class: traversal }
b1 -> b2p { class: traversal }
b2 -> b3 { class: traversal }