diff --git a/src/main/resources/logback-local.xml b/src/main/resources/logback-local.xml
index eb719dd..b6cc10e 100644
--- a/src/main/resources/logback-local.xml
+++ b/src/main/resources/logback-local.xml
@@ -7,7 +7,7 @@
     <!-- 콘솔 -->
     <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
         <encoder>
-            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+            <pattern>%clr(%d{HH:mm:ss.SSS}){faint} %clr(%5p) %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n</pattern>
         </encoder>
     </appender>
 
diff --git a/src/main/resources/logback-pjt.xml b/src/main/resources/logback-pjt.xml
index d22c31d..10a6864 100644
--- a/src/main/resources/logback-pjt.xml
+++ b/src/main/resources/logback-pjt.xml
@@ -4,37 +4,29 @@
     <!-- 로그 디렉토리 -->
     <property name="LOG_PATH" value="/logs" />
 
-    <!-- 콘솔 -->
-    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
-        <encoder>
-            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
-        </encoder>
-    </appender>
-
-    <!-- 파일 (운영에서 사용) -->
+    <!-- 파일 -->
     <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
 
-        <!-- 현재 로그는 고정 위치 (tail 편함) -->
-        <file>${LOG_PATH}/app.log</file>
+        <file>${LOG_PATH}/api.log</file>
 
-        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
 
-            <!-- 롤링 파일은 날짜 폴더(yyyy/MM) 하위로 저장 -->
+            <!-- 날짜/크기 기반 모두 적용 -->
             <fileNamePattern>
-                ${LOG_PATH}/%d{yyyy/MM}/app.%d{yyyy-MM-dd}.%i.log
+                ${LOG_PATH}/%d{yyyy/MM}/api.log-%d{yyyy-MM-dd-HHmmss}.%i
             </fileNamePattern>
 
-            <timeBasedFileNamingAndTriggeringPolicy
-                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
-                <maxFileSize>50MB</maxFileSize>
-            </timeBasedFileNamingAndTriggeringPolicy>
+            <!-- 파일 하나당 최대 크기 -->
+            <maxFileSize>50MB</maxFileSize>
 
+            <!-- 최대 180일 보관 -->
             <maxHistory>180</maxHistory>
+
             <cleanHistoryOnStart>true</cleanHistoryOnStart>
         </rollingPolicy>
 
         <encoder>
-            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger - %msg%n</pattern>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} | %-5level | %-15thread | %-40logger{40} | %msg%n</pattern>
         </encoder>
     </appender>