* Task/Ticket desktop dialogs — widened from 520 → 600dp, and tasks now uses SizedBox(width: 600) instead of ConstrainedBox(maxWidth:) which was the root cause of the "still small" issue (max-only never forced expansion)

* Pass Slip + Leave — both dialogs gained an isSheet flag; callers now branch on AppBreakpoints.tablet: bottom sheet on mobile, dialog on desktop

lib/providers/connectivity_provider.dart

@@ -1,5 +1,5 @@
 import 'dart:async';
-import 'package:flutter/foundation.dart' show debugPrint;
+import 'package:flutter/foundation.dart' show debugPrint, kIsWeb;
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:http/http.dart' as http;
 
@@ -46,6 +46,22 @@ final connectivityMonitorProvider = Provider.autoDispose<void>((ref) {
 /// Pings the app's own backend to determine online status.
 class ConnectivityMonitor {
   static Future<bool> check() async {
+    if (kIsWeb) {
+      // On web the browser enforces CORS: a HEAD request to an external domain
+      // (tasq.crmc.ph) is blocked even when online, making it look permanently
+      // offline. Instead probe the Supabase REST endpoint, which is already
+      // CORS-configured for this app's origin. Any HTTP response (including
+      // 401 without auth headers) proves the network is reachable.
+      try {
+        final restUrl = Supabase.instance.client.rest.url;
+        final res = await http
+            .head(Uri.parse(restUrl))
+            .timeout(const Duration(seconds: 5));
+        return res.statusCode < 500;
+      } catch (_) {
+        return false;
+      }
+    }
     try {
       final res = await http
           .head(Uri.parse('https://tasq.crmc.ph'))