flowchart TD
  classDef terminator fill:#4338ca,stroke:#312e81,stroke-width:2px,color:#fff,font-weight:700;
  classDef decision   fill:#fef3c7,stroke:#d97706,stroke-width:2.5px,color:#78350f,font-weight:700;
  classDef process    fill:#ffffff,stroke:#475569,stroke-width:1.5px,color:#0f172a;
  classDef processReq fill:#ffffff,stroke:#475569,stroke-width:1.5px,color:#0f172a,font-weight:600;
  classDef input      fill:#cffafe,stroke:#0891b2,stroke-width:1.8px,color:#164e63;
  classDef inputReq   fill:#cffafe,stroke:#0891b2,stroke-width:1.8px,color:#164e63,font-weight:600;
  classDef decisionReq fill:#fef3c7,stroke:#d97706,stroke-width:2.5px,color:#78350f,font-weight:700;
  classDef chOk      fill:#dcfce7,stroke:#16a34a,color:#14532d;
  classDef chWarn    fill:#fef3c7,stroke:#d97706,color:#78350f;
  classDef chRisk    fill:#fee2e2,stroke:#dc2626,color:#7f1d1d;
  linkStyle default stroke:#94a3b8,stroke-width:1.6px;

  START(["🟢 문진 시작: 코골이·수면무호흡 문진"]):::terminator
  RESULT(["🏁 결과 산출"]):::terminator

  S220["섹션 1: 증상<br/>(9)"]:::process
  START --> S220
  S221["섹션 2: 위험요인<br/>(8)"]:::process
  S220 --> S221
  S359["섹션 3: 수면 증상 상세<br/>(8)"]:::process
  S221 --> S359
  S360["섹션 4: 구조·유발<br/>(7)"]:::process
  S359 --> S360
  S361["섹션 5: 영향<br/>(4)"]:::process
  S360 --> S361
  S361 --> RESULT