diff --git a/src/stores/CalendarStore.js b/src/stores/CalendarStore.js
index f9b91a2..8b08ac7 100644
--- a/src/stores/CalendarStore.js
+++ b/src/stores/CalendarStore.js
@@ -6,53 +6,20 @@ import {
   getLocaleWeekendDays,
 } from '@/utils/date'
 
-/**
- * Calendar configuration can be overridden via window.calendarConfig:
- * 
- * window.calendarConfig = {
- *   firstDay: 0,           // 0=Sunday, 1=Monday, etc. (default: 1)
- *   firstDay: 'auto',      // Use locale detection
- *   weekendDays: [true, false, false, false, false, false, true], // Custom weekend
- *   weekendDays: 'auto'    // Use locale detection (default)
- * }
- */
-
 const MIN_YEAR = 1900
 const MAX_YEAR = 2100
 
-// Helper function to determine first day with config override support
-function getConfiguredFirstDay() {
-  // Check for environment variable or global config
-  const configOverride = window?.calendarConfig?.firstDay
-  if (configOverride !== undefined) {
-    return configOverride === 'auto' ? getLocaleFirstDay() : Number(configOverride)
-  }
-  // Default to Monday (1) instead of locale
-  return 1
-}
-
-// Helper function to determine weekend days with config override support  
-function getConfiguredWeekendDays() {
-  // Check for environment variable or global config
-  const configOverride = window?.calendarConfig?.weekendDays
-  if (configOverride !== undefined) {
-    return configOverride === 'auto' ? getLocaleWeekendDays() : configOverride
-  }
-  // Default to locale-based weekend days
-  return getLocaleWeekendDays()
-}
-
 export const useCalendarStore = defineStore('calendar', {
   state: () => ({
     today: toLocalString(new Date()),
     now: new Date(),
     events: new Map(), // Map of date strings to arrays of events
-    weekend: getConfiguredWeekendDays(),
+    weekend: getLocaleWeekendDays(),
     config: {
       select_days: 1000,
       min_year: MIN_YEAR,
       max_year: MAX_YEAR,
-      first_day: getConfiguredFirstDay(),
+      first_day: getLocaleFirstDay(),
     },
   }),