diff --git a/loglens/parsers/apache_parser.py b/loglens/parsers/apache_parser.py
index c1c83f8..d67a719 100644
--- a/loglens/parsers/apache_parser.py
+++ b/loglens/parsers/apache_parser.py
@@ -1,15 +1,15 @@
-"""Apache/Nginx log parser."""
+'''Apache/Nginx log parser.'''
 
 import re
 from datetime import datetime
-from typing import Any, Dict, List, Match, Optional
-from urllib.parse import parse_qs, unquote
+from re import Match
+from typing import Any, Optional
 
 from loglens.parsers.base import LogParser, ParsedLogEntry
 
 
 class ApacheParser(LogParser):
-    """Parser for Apache and Nginx access/error logs."""
+    '''Parser for Apache and Nginx access/error logs.'''
 
     format_name = "apache"
 
@@ -26,7 +26,7 @@ class ApacheParser(LogParser):
     )
 
     ERROR_PATTERN = re.compile(
-        r'^\[[A-Z][a-z]{2}\s+[A-Z][a-z]{2}\s+\d{1,2}\s+\d{2}:\d{2}:\d{2}(?:\.\d+)?\s+\d{4})\]\s+\[([^\]:]+):([^\]]+)\]\s+(?:\[pid\s+(\d+)\]\s+)?(?P<message>.*)$'
+        r"^\[([A-Z][a-z]{2}\s+[A-Z][a-z]{2}\s+\d{1,2}\s+\d{2}:\d{2}:\d{2}(?:\.\d+)?\s+\d{4})\]\s+\[([^\]:]+):([^\]]+)\]\s+(?:\[pid\s+(\d+)\]\s+)?(?P<message>.*)$"
     )
 
     STATUS_CODES = {
@@ -34,7 +34,7 @@ class ApacheParser(LogParser):
         "2xx": "success",
         "3xx": "redirection",
         "4xx": "client_error",
-        "5xx": "server_error"
+        "5xx": "server_error",
     }
 
     def __init__(self, custom_format: Optional[str] = None):
@@ -42,20 +42,22 @@ class ApacheParser(LogParser):
         self._compile_custom_pattern(custom_format)
 
     def _compile_custom_pattern(self, format_str: Optional[str]) -> None:
-        """Compile custom log format pattern."""
+        '''Compile custom log format pattern.'''
         if not format_str:
             self.custom_pattern = None
             return
 
-        pattern_str = format_str.replace("%h", r"(?P<ip>\S+)") \
-                               .replace("%l", r"\S+") \
-                               .replace("%u", r"\S+") \
-                               .replace("%t", r"\[(?P<timestamp>.*?)\]") \
-                               .replace("%r", r'"(?P<method>\S+)\s+(?P<path>.*?)\s+(?P<protocol>\S+)"') \
-                               .replace("%s", r"(?P<status>\d{3})") \
-                               .replace("%b", r"(?P<size>\S+)") \
-                               .replace("%{Referer}i", r'"(?P<referer>.*?)"') \
-                               .replace("%{User-agent}i", r'"(?P<user_agent>.*?)"')
+        pattern_str = (
+            format_str.replace("%h", r"(?P<ip>\S+)")
+            .replace("%l", r"\S+")
+            .replace("%u", r"\S+")
+            .replace("%t", r"\[(?P<timestamp>.*?)\]")
+            .replace("%r", r'"(?P<method>\S+)\s+(?P<path>.*?)\s+(?P<protocol>\S+)"')
+            .replace("%s", r"(?P<status>\d{3})")
+            .replace("%b", r"(?P<size>\S+)")
+            .replace("%{Referer}i", r'"(?P<referer>.*?)"')
+            .replace("%{User-agent}i", r'"(?P<user_agent>.*?)"')
+        )
 
         try:
             self.custom_pattern = re.compile("^" + pattern_str)
@@ -63,7 +65,7 @@ class ApacheParser(LogParser):
             self.custom_pattern = None
 
     def can_parse(self, line: str) -> bool:
-        """Check if line matches Apache/Nginx format."""
+        '''Check if line matches Apache/Nginx format.'''
         line = line.strip()
         if not line:
             return False
@@ -82,15 +84,12 @@ class ApacheParser(LogParser):
         return False
 
     def parse(self, line: str, line_number: int = 0) -> Optional[ParsedLogEntry]:
-        """Parse an Apache/Nginx log line."""
+        '''Parse an Apache/Nginx log line.'''
         line = line.strip()
         if not line:
             return None
 
-        entry = ParsedLogEntry(
-            raw_line=line,
-            line_number=line_number
-        )
+        entry = ParsedLogEntry(raw_line=line, line_number=line_number)
 
         parsed = None
 
@@ -128,8 +127,8 @@ class ApacheParser(LogParser):
 
         return entry
 
-    def _extract_from_match(self, match: Match, line: str) -> Dict[str, Any]:
-        """Extract data from regex match."""
+    def _extract_from_match(self, match: Match, line: str) -> dict[str, Any]:
+        '''Extract data from regex match.'''
         result = {}
 
         groups = match.groupdict()
@@ -143,7 +142,7 @@ class ApacheParser(LogParser):
 
         if "request" in groups:
             request = groups["request"]
-            request_match = re.match(r'(?P<method>\S+)\s+(?P<path>.*)', request)
+            request_match = re.match(r"(?P<method>\S+)\s+(?P<path>.*)", request)
             if request_match:
                 result["method"] = request_match.group("method")
                 result["path"] = request_match.group("path")
@@ -174,8 +173,8 @@ class ApacheParser(LogParser):
 
         return result
 
-    def _extract_error_from_match(self, match: Match, line: str) -> Dict[str, Any]:
-        """Extract data from error log match."""
+    def _extract_error_from_match(self, match: Match, line: str) -> dict[str, Any]:
+        '''Extract data from error log match.'''
         groups = match.groupdict()
 
         result = {
@@ -193,7 +192,7 @@ class ApacheParser(LogParser):
         return result
 
     def _parse_timestamp(self, ts: str) -> Optional[datetime]:
-        """Parse Apache/Nginx timestamp format."""
+        '''Parse Apache/Nginx timestamp format.'''
         ts = ts.strip()
 
         formats = [
@@ -212,7 +211,7 @@ class ApacheParser(LogParser):
         return None
 
     def _infer_level_from_status(self, status: str) -> Optional[str]:
-        """Infer log level from HTTP status code."""
+        '''Infer log level from HTTP status code.'''
         if not status:
             return None