diff --git a/app/Views/claim_files_upload.php b/app/Views/claim_files_upload.php
index 84597f2f..4a8380b7 100644
--- a/app/Views/claim_files_upload.php
+++ b/app/Views/claim_files_upload.php
@@ -163,22 +163,6 @@
 </div>
 
 <script>
-
-    const MAX_UPLOAD_PAYLOAD_BYTES = 25 * 1024 * 1024; // 25 MB
-
-    function getSelectedUploadPayloadSize() {
-        let totalBytes = 0;
-        $('#drive_file_upload_form input[type=file]').each(function () {
-            if (!this.files || !this.files.length) {
-                return;
-            }
-            for (let i = 0; i < this.files.length; i++) {
-                totalBytes += this.files[i].size || 0;
-            }
-        });
-        return totalBytes;
-    }
-
     $(document).ready(function(){
         let ticket_id = $('#ticket_master_id').val();
         $('#ticket_id_url').val(ticket_id);
@@ -218,9 +202,7 @@
             return;
         }
 
-        const selectedPayloadBytes = getSelectedUploadPayloadSize();
-        if (selectedPayloadBytes > MAX_UPLOAD_PAYLOAD_BYTES) {
-            toastr.warning('Total selected file size must not exceed 25 MB.', 'Validation');
+        if (typeof window.validateGlobalUploadPayload === 'function' && !window.validateGlobalUploadPayload(this)) {
             return;
         }
 
diff --git a/app/Views/client_basic_info.php b/app/Views/client_basic_info.php
index ce8b0735..efbbb33a 100755
--- a/app/Views/client_basic_info.php
+++ b/app/Views/client_basic_info.php
@@ -257,7 +257,7 @@ input:checked + .slider:before {
                                     placeholder="Enter Client Name"
                                     value="<?= isset($client['client_name']) ? $client['client_name'] : '' ?>" name="client_name"
                                     required maxlength="45" data-parsley-minlength="2" data-parsley-maxlength="45"
-                                    data-parsley-pattern="^[a-zA-Z0-9\\s_-]+$"
+                                    data-parsley-pattern="^[a-zA-Z0-9\s_-]+$"
                                     data-parsley-pattern-message="Only letters, numbers, spaces, underscore (_) and hyphen (-) are allowed.">
                             </div>
                             <div class="form-group col-md-4">
diff --git a/app/Views/client_branch.php b/app/Views/client_branch.php
index 1912b009..fd00a267 100755
--- a/app/Views/client_branch.php
+++ b/app/Views/client_branch.php
@@ -263,7 +263,7 @@ input:checked + .slider-branch-contact:before {
                                 <label for="first_name">Name<span class="text-danger">*</span></label>
                                 <input value="" type="text" class="form-control" placeholder="Enter Contact Name"
                                     name="name[]" id="name" required
-                                    data-parsley-pattern="^[A-Za-z\\s]+$"
+                                    data-parsley-pattern="^[A-Za-z\s]+$"
                                     data-parsley-pattern-message="Contact name may contain only letters and spaces.">
                             </div>
                             <div class="form-group col-md-6">
@@ -282,7 +282,7 @@ input:checked + .slider-branch-contact:before {
                                 <label for="last_name">Email<span class="text-danger">*</span></label>
                                 <input value="" type="text" class="form-control" placeholder="Enter Contact Email"
                                     name="email[]" id="email" data-parsley-trigger="change"
-                                    data-parsley-pattern="^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$"
+                                    data-parsley-pattern="^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"
                                     data-parsley-pattern-message="Please enter a valid email format (e.g., name@domain.com)."
                                     onchange="validateDuplicateByClientBranch(this, 'email','branchBtnSubmit')" required>
                             </div>
diff --git a/app/Views/layout/footer.php b/app/Views/layout/footer.php
index 70834f7d..3851bb0e 100755
--- a/app/Views/layout/footer.php
+++ b/app/Views/layout/footer.php
@@ -274,6 +274,99 @@
         "closeButton": true,
     };
 </script>
+<script>
+    (function (window, document) {
+        var MAX_GLOBAL_UPLOAD_BYTES = 25 * 1024 * 1024; // 25 MB
+
+        function formatBytesToMb(bytes) {
+            return (bytes / (1024 * 1024)).toFixed(2);
+        }
+
+        function getFilesSizeFromInput(input) {
+            if (!input || !input.files || !input.files.length) {
+                return 0;
+            }
+            var total = 0;
+            for (var i = 0; i < input.files.length; i++) {
+                total += input.files[i].size || 0;
+            }
+            return total;
+        }
+
+        function getAllFileInputsScope(source) {
+            if (!source) {
+                return [];
+            }
+            if (source.matches && source.matches('form')) {
+                return source.querySelectorAll('input[type="file"]');
+            }
+            if (source.form) {
+                return source.form.querySelectorAll('input[type="file"]');
+            }
+            return document.querySelectorAll('input[type="file"]');
+        }
+
+        function getTotalPayloadBytes(source) {
+            var inputs = getAllFileInputsScope(source);
+            var total = 0;
+            for (var i = 0; i < inputs.length; i++) {
+                total += getFilesSizeFromInput(inputs[i]);
+            }
+            return total;
+        }
+
+        function showGlobalFileWarning(message) {
+            if (window.toastr && typeof window.toastr.warning === 'function') {
+                window.toastr.warning(message, 'Validation');
+            } else {
+                window.alert(message);
+            }
+        }
+
+        function validateGlobalUploadPayload(source) {
+            var totalPayloadBytes = getTotalPayloadBytes(source);
+            if (totalPayloadBytes > MAX_GLOBAL_UPLOAD_BYTES) {
+                showGlobalFileWarning(
+                    'Total selected file size is ' +
+                        formatBytesToMb(totalPayloadBytes) +
+                        ' MB. Allowed maximum is 25 MB.'
+                );
+                return false;
+            }
+            return true;
+        }
+
+        window.validateGlobalUploadPayload = validateGlobalUploadPayload;
+
+        document.addEventListener('change', function (event) {
+            var target = event.target;
+            if (!target || !target.matches || !target.matches('input[type="file"]')) {
+                return;
+            }
+            if (!validateGlobalUploadPayload(target)) {
+                target.value = '';
+            }
+        });
+
+        document.addEventListener(
+            'submit',
+            function (event) {
+                var form = event.target;
+                if (!form || !form.matches || !form.matches('form')) {
+                    return;
+                }
+                if (!form.querySelector('input[type="file"]')) {
+                    return;
+                }
+                if (!validateGlobalUploadPayload(form)) {
+                    event.preventDefault();
+                    event.stopPropagation();
+                }
+            },
+            true
+        );
+    })(window, document);
+</script>
 <script>
     window.__navPageName = "<?= esc($page_name ?? '') ?>";
     window.__navUserName = "<?= esc(get_session_userdata()->first_name ?? 'NOT SET') ?>";