diff --git a/docker/nginx.frontend.conf b/docker/nginx.frontend.conf
index 79fd959..67620cd 100644
--- a/docker/nginx.frontend.conf
+++ b/docker/nginx.frontend.conf
@@ -3,9 +3,14 @@ server {
   server_name _;
 
   root /usr/share/nginx/html;
-  index index.html;
+  index index.csr.html;
+
+  # Angular SSR static browser build uses index.csr.html as the SPA entrypoint.
+  location = /index.html {
+    try_files /index.csr.html =404;
+  }
 
   location / {
-    try_files $uri $uri/ /index.html;
+    try_files $uri $uri/ /index.csr.html;
   }
 }
diff --git a/docs/DEPLOY_VPS.md b/docs/DEPLOY_VPS.md
index b6fdbd1..d03d03c 100644
--- a/docs/DEPLOY_VPS.md
+++ b/docs/DEPLOY_VPS.md
@@ -88,6 +88,25 @@ cd ~/apps/line-gestao-api
 docker compose -f docker-compose.domain.yml up -d caddy
 ```
 
+
+## 404 no domínio após build (caso comum neste projeto)
+
+Se o container `frontend-nginx` subir, mas `https://linegestao.inglinesystems.com.br` continuar em 404, valide:
+
+```bash
+# 1) arquivo de entrada do build Angular SSR
+ls -lah ~/apps/line-gestao-frontend/dist/line-gestao-frontend/browser/index.csr.html
+
+# 2) recarregar Nginx do front após atualizar config
+cd ~/apps/line-gestao-frontend
+docker compose -f docker-compose.frontend.yml up -d --force-recreate frontend-nginx
+
+# 3) testar origem do Nginx localmente no VPS
+curl -i http://127.0.0.1:8081/
+```
+
+Neste repositório, o Nginx do front deve apontar para `index.csr.html` (e não `index.html`).
+
 ---
 
 ## Bloco C — validação (curl + navegador)