Refactor roadmap.mmd for clarity and structure

Author: rmcmillan34

roadmap/personas/core/roadmap.mmd

@@ -1,8 +1,7 @@
 flowchart TB
 
 %% ============================================================
-%% Quant Core Spine (Levels 0–2)
-%% Domains: Math, Computer Science, Data Science, Finance
+%% Quant Core Spine — Domain Columns, Levels 0–2
 %% ============================================================
 
 %% ---------- LEVEL 0 ----------
@@ -35,7 +34,7 @@ end
 subgraph L1CS["Computer Science"]
 direction TB
 CS1["Python Programming (Foundations)<br/>(CS50P-level)"]
-CS2["Computational Tools & Workflow<br/>(Unix · CLI · Git · automation)<br/>(MIT Missing Semester)"]
+CS2["Computational Tools & Workflow<br/>(Unix · CLI · Git)<br/>(MIT Missing Semester)"]
 end
 
 subgraph L1DS["Data Science"]
@@ -45,7 +44,7 @@ end
 
 subgraph L1F["Finance"]
 direction TB
-F1["Intro to Finance<br/>(Markets & Instruments)<br/>(MIT 15.401 / Yale / CFA L1-equiv)"]
+F1["Intro to Finance<br/>(Markets & Instruments)"]
 end
 
 end
@@ -64,71 +63,46 @@ end
 subgraph L2CS["Computer Science"]
 direction TB
 CS3["Data Structures & Algorithms"]
-CS4["Software Engineering Fundamentals<br/>(testing · modularity · reproducibility)"]
+CS4["Software Engineering Fundamentals"]
 end
 
 subgraph L2DS["Data Science"]
 direction TB
 DS2["Statistical Inference"]
-DS3["Time Series Analysis (Foundations)"]
+DS3["Time Series Analysis"]
 end
 
 subgraph L2F["Finance"]
 direction TB
 F2["Risk & Return"]
-F3["Intro Portfolio Theory (Conceptual)"]
+F3["Intro Portfolio Theory"]
 end
 
 end
 
-%% ============================================================
-%% Prerequisite Links (core spine)
-%% ============================================================
-
-%% Level 0 -> Level 1
-M0 --> M1
-M0 --> M2
-M0 --> M3
-CS0 --> CS1
-CS0 --> CS2
-
-%% Level 1 -> Level 2 (Math)
-M3 --> M4
-M2 --> M5
+%% ---------- Vertical Progression (per domain only) ----------
+M0 --> M1 --> M4
+M0 --> M2 --> M5
+M0 --> M3 --> M4
 M1 --> M6
 
-%% Level 1 -> Level 2 (CS)
-CS1 --> CS3
-CS2 --> CS4
-CS1 --> CS4
+CS0 --> CS1 --> CS3
+CS0 --> CS2 --> CS4
 
-%% Level 1 -> Level 2 (DS)
 DS1 --> DS2
 DS1 --> DS3
-M2 --> DS2
-M2 --> DS3
 
-%% Level 1 -> Level 2 (Finance)
 F1 --> F2
 F1 --> F3
-M3 --> F3
-DS1 --> F2
-
-%% Cross-domain helpful links (still core)
-CS1 --> DS1
-M3 --> DS2
-M4 --> DS3
-F2 --> DS3
 
 %% ============================================================
 %% Styling by Domain
-%% (Adjust these hex codes to match your repo palette)
 %% ============================================================
 
-classDef math fill:#2E3A8C,stroke:#1C245A,color:#ffffff;
-classDef cs fill:#1F6AA1,stroke:#11405F,color:#ffffff;
-classDef ds fill:#2A9D8F,stroke:#1B6259,color:#ffffff;
-classDef fin fill:#E09F3E,stroke:#8A5A12,color:#111111;
+classDef math fill:#C0392B,stroke:#7B241C,color:#ffffff;
+classDef cs fill:#2874A6,stroke:#1B4F72,color:#ffffff;
+classDef ds fill:#F1C40F,stroke:#9A7D0A,color:#111111;
+classDef fin fill:#27AE60,stroke:#1E8449,color:#ffffff;
 
 class M0,M1,M2,M3,M4,M5,M6 math;
 class CS0,CS1,CS2,CS3,CS4 cs;