diff --git a/dist/index.html b/dist/index.html
index 6f862e5..4f682e2 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -4,7 +4,7 @@
     <head>
       <meta charset="UTF-8" />
       <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-      <title>new hamdast</title>
+      <title>همدست</title>
       <meta name="theme-color" content="#23183E" />
       <style>
         html,
@@ -16,7 +16,7 @@
           background: #23183E;
         }
       </style>
-      <script type="module" crossorigin src="/assets/index-Ccau0Eyo.js"></script>
+      <script type="module" crossorigin src="/assets/index-C0TqKym5.js"></script>
       <link rel="stylesheet" crossorigin href="/assets/index-xouV2fxu.css">
     </head>
 
diff --git a/dist/web.config b/dist/web.config
new file mode 100644
index 0000000..5fa1528
--- /dev/null
+++ b/dist/web.config
@@ -0,0 +1,17 @@
+﻿<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <system.webServer>
+    <rewrite>
+      <rules>
+        <rule name="SPA Routes" stopProcessing="true">
+          <match url=".*" />
+          <conditions logicalGrouping="MatchAll">
+            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
+            <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
+          </conditions>
+          <action type="Rewrite" url="/index.html" />
+        </rule>
+      </rules>
+    </rewrite>
+  </system.webServer>
+</configuration>
diff --git a/index.html b/index.html
index 8a6099d..52448ff 100644
--- a/index.html
+++ b/index.html
@@ -4,7 +4,7 @@
     <head>
       <meta charset="UTF-8" />
       <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-      <title>new hamdast</title>
+      <title>همدست</title>
       <meta name="theme-color" content="#23183E" />
       <style>
         html,
diff --git a/public/web.config b/public/web.config
new file mode 100644
index 0000000..5fa1528
--- /dev/null
+++ b/public/web.config
@@ -0,0 +1,17 @@
+﻿<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <system.webServer>
+    <rewrite>
+      <rules>
+        <rule name="SPA Routes" stopProcessing="true">
+          <match url=".*" />
+          <conditions logicalGrouping="MatchAll">
+            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
+            <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
+          </conditions>
+          <action type="Rewrite" url="/index.html" />
+        </rule>
+      </rules>
+    </rewrite>
+  </system.webServer>
+</configuration>
diff --git a/src/app/components/CommentsModal.tsx b/src/app/components/CommentsModal.tsx
index 98699d9..b26116d 100644
--- a/src/app/components/CommentsModal.tsx
+++ b/src/app/components/CommentsModal.tsx
@@ -196,7 +196,7 @@ export function CommentsModal({
               <span className="text-xs text-gray-400">{comment.timestamp}</span>
             </div>
 
-            <p className="text-sm text-white leading-relaxed mb-2">{comment.text}</p>
+            <p className="text-sm text-white leading-relaxed mb-2 whitespace-pre-line">{comment.text}</p>
 
             {/* Actions */}
             <div className="flex items-center gap-4">
diff --git a/src/app/components/LoginPage.tsx b/src/app/components/LoginPage.tsx
index 32aafdd..382388b 100644
--- a/src/app/components/LoginPage.tsx
+++ b/src/app/components/LoginPage.tsx
@@ -1,4 +1,4 @@
-import { AnimatePresence, motion } from "motion/react";
+﻿import { AnimatePresence, motion } from "motion/react";
 import { useState, useEffect, useRef } from "react";
 import { useNavigate, useLocation, Navigate } from "react-router-dom";
 import { ChevronDown, ChevronRight, ShieldCheck } from "lucide-react";
@@ -110,6 +110,20 @@ export function LoginPage() {
     return input.replace(/\d/g, (digit) => PERSIAN_NUMBERS[parseInt(digit, 10)]);
   };
 
+  const parsePhoneNumber = (input: string) => {
+    const digits = normalizeNumber(input).replace(/\D/g, "").slice(0, 11);
+
+    if (/^09\d{9}$/.test(digits)) {
+      return { error: "", serverMobile: digits };
+    }
+
+    if (/^9\d{9}$/.test(digits)) {
+      return { error: "", serverMobile: `0${digits}` };
+    }
+
+    return { error: "شماره موبایل معتبر نیست", serverMobile: "" };
+  };
+
   const clearTimer = () => {
     if (timerRef.current) {
       clearInterval(timerRef.current);
@@ -148,12 +162,16 @@ export function LoginPage() {
 
   const handleSendCode = async (e: React.FormEvent) => {
     e.preventDefault();
+    const { error: phoneError, serverMobile } = parsePhoneNumber(phoneNumber);
+    if (phoneError) {
+      setError(phoneError);
+      return;
+    }
     setIsLoading(true);
     setError("");
 
     try {
-      const normalizedPhone = normalizeNumber(phoneNumber);
-      const { response, result } = await requestSmsCode(normalizedPhone);
+      const { response, result } = await requestSmsCode(serverMobile);
 
       if (response.ok && result.state === 0) {
         setStep("code");
@@ -173,11 +191,15 @@ export function LoginPage() {
 
   const handleVerifyCode = async (e?: React.FormEvent) => {
     e?.preventDefault();
+    const { error: phoneError, serverMobile } = parsePhoneNumber(phoneNumber);
+    if (phoneError) {
+      setError(phoneError);
+      return;
+    }
     setIsLoading(true);
     setError("");
 
     try {
-      const normalizedPhone = normalizeNumber(phoneNumber);
       const normalizedCode = normalizeNumber(code);
 
       const response = await fetch(`${API_BASE_URL}/api/verifyloginbysms`, {
@@ -186,7 +208,7 @@ export function LoginPage() {
           "Content-Type": "application/json",
         },
         body: JSON.stringify({
-          mobile: normalizedPhone,
+          mobile: serverMobile,
           code: normalizedCode,
         }),
       });
@@ -223,12 +245,16 @@ export function LoginPage() {
   };
 
   const handleResendCode = async () => {
+    const { error: phoneError, serverMobile } = parsePhoneNumber(phoneNumber);
+    if (phoneError) {
+      setError(phoneError);
+      return;
+    }
     setIsLoading(true);
     setError("");
 
     try {
-      const normalizedPhone = normalizeNumber(phoneNumber);
-      const { response, result } = await requestSmsCode(normalizedPhone);
+      const { response, result } = await requestSmsCode(serverMobile);
 
       if (response.ok && result.state === 0) {
         setCode("");
@@ -394,7 +420,8 @@ export function LoginPage() {
                       inputMode="numeric"
                       autoFocus={step === "phone"}
                       value={toPersianNumber(phoneNumber)}
-                      onChange={(e) => setPhoneNumber(normalizeNumber(e.target.value))}
+                      onChange={(e) => { const nextValue = normalizeNumber(e.target.value).replace(/\D/g, "").slice(0, 11); setPhoneNumber(nextValue); if (error) setError(""); }}
+                      maxLength={11}
                       className="w-full bg-transparent text-left text-lg text-white outline-none placeholder:text-lg placeholder:text-white/45"
                       placeholder="۹۱۲ ۱۲۳ ۴۵۶۷"
                       required
@@ -535,3 +562,4 @@ export function LoginPage() {
     </div>
   );
 }
+
diff --git a/src/app/components/PostCard.tsx b/src/app/components/PostCard.tsx
index aebf2a2..2e99fcb 100644
--- a/src/app/components/PostCard.tsx
+++ b/src/app/components/PostCard.tsx
@@ -9,6 +9,7 @@ import { useNavigate } from "react-router-dom";
 import reactionIconShared from "../../assets/reaction-icon-shared.svg";
 import commentIconShared from "../../assets/comment-icon-shared.svg";
 import avatarFallbackImage from "../../assets/image 5.png";
+import { convertBrToNewlines } from "../../utils/textFormat";
 
 // PostCard با طراحی جدید - قسمت پایین بازطراحی شده + آیکون مشارکت‌کنندگان
 interface PostCardProps {
@@ -59,6 +60,7 @@ export function PostCard({
   teamMemberIds,
   preloadedTeamMembers,
 }: PostCardProps) {
+  const normalizedCaption = convertBrToNewlines(caption || "");
   const COMMENTS_PAGE_SIZE = 25;
   const postChromeStyle = {
     border: "1px solid transparent",
@@ -419,11 +421,12 @@ export function PostCard({
               WebkitLineClamp: expandedCaption ? "unset" : 4,
               WebkitBoxOrient: "vertical",
               overflow: "hidden",
+              whiteSpace: "pre-line",
             }}
           >
-            {caption}
+            {normalizedCaption}
           </p>
-          {caption.length > 150 && (
+          {normalizedCaption.length > 150 && (
             <button
               onClick={() => setExpandedCaption(!expandedCaption)}
               className="text-xs mt-1"
diff --git a/src/app/components/PublicChatPage.tsx b/src/app/components/PublicChatPage.tsx
index 4005e0a..0db82a5 100644
--- a/src/app/components/PublicChatPage.tsx
+++ b/src/app/components/PublicChatPage.tsx
@@ -126,7 +126,7 @@ export function PublicChatPage() {
 
   const handleSendMessage = async (message: string) => {
     const displayText = message.trim();
-    const serverText = displayText.replace(/\r?\n+/g, " ").trim();
+    const serverText = displayText;
 
     if (!serverText || isSending) return;
 
@@ -194,22 +194,8 @@ export function PublicChatPage() {
       const result = await loadChatList();
 
       if (result.success) {
-        const sortedItems = [...result.data].sort((a, b) => {
-          const timeA = Date.parse(a.datetime1 || "");
-          const timeB = Date.parse(b.datetime1 || "");
-
-          if (!Number.isNaN(timeA) && !Number.isNaN(timeB)) {
-            return timeB - timeA;
-          }
-
-          return 0;
-        });
-
-        const allDatesInvalid = sortedItems.every((item) =>
-          Number.isNaN(Date.parse(item.datetime1 || "")),
-        );
-
-        setHistoryItems(allDatesInvalid ? [...result.data].reverse() : sortedItems);
+        // Server returns oldest -> newest. UI should show newest first.
+        setHistoryItems([...result.data].reverse());
       } else {
         console.error("Failed to load chat list:", result.message);
         alert(result.message || "خطا در بارگذاری تاریخچه");
@@ -244,7 +230,13 @@ export function PublicChatPage() {
   }, [handleHistoryClick, isLoading, isSending]);
 
   return (
-    <div className="relative h-full min-h-0 overflow-hidden">
+    <div
+      className="relative h-full min-h-0 overflow-hidden"
+      style={{
+        overscrollBehaviorY: "none",
+        touchAction: "pan-y",
+      }}
+    >
       <div className="grid h-full min-h-0 grid-rows-[minmax(0,1fr)_auto]">
         <main className="relative min-h-0 overflow-hidden">
           {isLoading ? (
diff --git a/src/app/components/public-chat/ChatHistoryModal.tsx b/src/app/components/public-chat/ChatHistoryModal.tsx
index 4d2b398..38971a7 100644
--- a/src/app/components/public-chat/ChatHistoryModal.tsx
+++ b/src/app/components/public-chat/ChatHistoryModal.tsx
@@ -99,6 +99,9 @@ export function ChatHistoryModal({
                   "calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 180px)",
                 scrollbarWidth: "none",
                 msOverflowStyle: "none",
+                overscrollBehaviorY: "contain",
+                WebkitOverflowScrolling: "touch",
+                touchAction: "pan-y",
               }}
             >
               {isLoading ? (
diff --git a/src/app/components/public-chat/ChatMessages.tsx b/src/app/components/public-chat/ChatMessages.tsx
index 0c53392..4eb897d 100644
--- a/src/app/components/public-chat/ChatMessages.tsx
+++ b/src/app/components/public-chat/ChatMessages.tsx
@@ -54,8 +54,13 @@ export function ChatMessages({
   return (
     <div
       ref={containerRef}
-      className="flex-1 overflow-y-auto px-4 pb-20"
+      className="h-full min-h-0 overflow-y-auto px-4 pb-20"
       dir="rtl"
+      style={{
+        overscrollBehaviorY: "contain",
+        WebkitOverflowScrolling: "touch",
+        touchAction: "pan-y",
+      }}
     >
       <div className="space-y-3">
         {messages.map((message) => {
diff --git a/src/config/api.ts b/src/config/api.ts
index eaa7845..29a4ab7 100644
--- a/src/config/api.ts
+++ b/src/config/api.ts
@@ -1,3 +1,4 @@
 // API Configuration
 export const API_BASE_URL = "http://141.11.1.189";
+// export const API_BASE_URL = "https://localhost:44362";
 //export const API_BASE_URL = "https://hamdast-back2.sepehrdata.com";
\ No newline at end of file
diff --git a/src/hooks/useChatFlow.ts b/src/hooks/useChatFlow.ts
index 8d040e1..3d17032 100644
--- a/src/hooks/useChatFlow.ts
+++ b/src/hooks/useChatFlow.ts
@@ -50,7 +50,7 @@ export const useChatFlow = ({ workflowId, onMissionEnd }: UseChatFlowOptions): U
     });
 
     const displayMessage = messageText.trim();
-    const normalizedMessage = displayMessage.replace(/\r?\n+/g, " ").trim();
+    const normalizedMessage = displayMessage;
 
     if (!normalizedMessage || !workflowId) {
       console.log("sendMessage aborted:", {
diff --git a/src/services/feedService.ts b/src/services/feedService.ts
index 8e6623c..dbd63ad 100644
--- a/src/services/feedService.ts
+++ b/src/services/feedService.ts
@@ -1,4 +1,5 @@
 import { API_BASE_URL } from "../config/api";
+import { convertBrToNewlines, convertNewlinesToBr } from "../utils/textFormat";
 
 const AVATAR_CACHE_BUST_KEY = "avatarCacheBust";
 
@@ -82,7 +83,10 @@ const formatErrorMessage = (result: ApiResponse<any>): string => {
 const parseFeedData = (data: string): FeedItem[] => {
   try {
     const parsed = JSON.parse(data);
-    const feedArray = JSON.parse(parsed.feed || "[]");
+    const feedArray = JSON.parse(parsed.feed || "[]").map((item: FeedItem) => ({
+      ...item,
+      description: convertBrToNewlines(item.description || ""),
+    }));
     return feedArray;
   } catch (error) {
     console.error("Error parsing feed data:", error);
@@ -280,7 +284,7 @@ export const saveComment = async (
         save_comment_function: {
           mission_type: missionType,
           mission_done_workflowID: missionDoneWorkflowID,
-          text: text,
+          text: convertNewlinesToBr(text || ""),
           replay_workflowID: replayWorkflowID,
         },
       }),
@@ -373,7 +377,10 @@ export const loadComments = async (
 
     if (response.ok && result.state === 0) {
       const data = JSON.parse(result.data);
-      const comments = JSON.parse(data.comments);
+      const comments = JSON.parse(data.comments).map((comment: CommentData) => ({
+        ...comment,
+        comment_text: convertBrToNewlines(comment.comment_text || ""),
+      }));
       return { comments };
     } else {
       console.error("Error loading comments:", result.message);
@@ -519,7 +526,11 @@ export const startMission = async (
     if (response.ok && result.state === 0) {
       const data = JSON.parse(result.data);
       const doingMissionArray = JSON.parse(data.doing_mission);
-      const chatsArray = JSON.parse(data.chats);
+      const chatsArray = JSON.parse(data.chats).map((chat: ChatMessage) => ({
+        ...chat,
+        question: convertBrToNewlines(chat.question || ""),
+        answer: convertBrToNewlines(chat.answer || ""),
+      }));
       
       return {
         doing_mission: doingMissionArray.length > 0 ? doingMissionArray[0] : null,
@@ -561,7 +572,7 @@ export const sendChatMessage = async (
   try {
     const payload = {
       chat_service_function: {
-        user_message: userMessage,
+        user_message: convertNewlinesToBr(userMessage || ""),
         mission_done_workflowID: missionDoneWorkflowID,
       },
     };
@@ -587,7 +598,7 @@ export const sendChatMessage = async (
         const chatResponse = JSON.parse(data[keys[0]]);
         return { 
           success: true, 
-          message: chatResponse.message,
+          message: convertBrToNewlines(chatResponse.message || ""),
           actions: chatResponse.actions,
           is_mission_end: chatResponse.is_mission_end,
         };
@@ -760,7 +771,7 @@ export const submitMission = async (
         title: data.title || "",
         mission_type: data.mission_type || "",
         mission_done_workflowID: data.mission_done_workflowID || "",
-        description: data.description || "",
+        description: convertNewlinesToBr(data.description || ""),
         film: data.film || "",
         image: data.image || "",
         audio: data.audio || "",
diff --git a/src/services/profileService.ts b/src/services/profileService.ts
index 9cd047c..f660436 100644
--- a/src/services/profileService.ts
+++ b/src/services/profileService.ts
@@ -1,6 +1,7 @@
 // Profile Service - برای مدیریت پروفایل کاربر
 import { API_BASE_URL } from "../config/api";
 import { getAccessToken } from "../utils/auth";
+import { convertBrToNewlines } from "../utils/textFormat";
 
 export interface UserProfile {
   username: string;
@@ -242,8 +243,18 @@ export const getUserProfileData = async (): Promise<UserProfileData | null> => {
 
       return {
         challenges: parsedData.challenges ? JSON.parse(parsedData.challenges) : [],
-        coin_transaction: parsedData.coin_transaction ? JSON.parse(parsedData.coin_transaction) : [],
-        posts: parsedData.posts ? JSON.parse(parsedData.posts) : [],
+        coin_transaction: parsedData.coin_transaction
+          ? JSON.parse(parsedData.coin_transaction).map((item: ProfileCoinTransaction) => ({
+              ...item,
+              description: convertBrToNewlines(item.description || ""),
+            }))
+          : [],
+        posts: parsedData.posts
+          ? JSON.parse(parsedData.posts).map((post: ProfilePost) => ({
+              ...post,
+              description: convertBrToNewlines(post.description || ""),
+            }))
+          : [],
       };
     }
 
@@ -252,4 +263,4 @@ export const getUserProfileData = async (): Promise<UserProfileData | null> => {
     if (import.meta.env.DEV) console.warn("خطا در دریافت داده‌های پروفایل:", error);
     return null;
   }
-};
\ No newline at end of file
+};
diff --git a/src/services/publicChatService.ts b/src/services/publicChatService.ts
index 48f4794..fb1e221 100644
--- a/src/services/publicChatService.ts
+++ b/src/services/publicChatService.ts
@@ -1,4 +1,5 @@
 import { API_BASE_URL } from "../config/api";
+import { convertBrToNewlines, convertNewlinesToBr } from "../utils/textFormat";
 
 const getAuthToken = (): string | null => {
   const accessToken = localStorage.getItem("accessToken");
@@ -129,10 +130,15 @@ export const loadChat = async (
       // Parse the nested JSON string
       const parsedData = JSON.parse(result.data);
       const chats = JSON.parse(parsedData.chats);
+      const normalizedChats = chats.map((chat: PublicChatMessage) => ({
+        ...chat,
+        question: convertBrToNewlines(chat.question || ""),
+        answer: convertBrToNewlines(chat.answer || ""),
+      }));
 
       return {
         success: true,
-        data: chats,
+        data: normalizedChats,
       };
     } else {
       return {
@@ -177,7 +183,7 @@ export const sendPublicChatMessage = async (
       body: JSON.stringify({
         public_caht_function: {
           chatlist_workflowID: chatlistWorkflowID,
-          question: question,
+          question: convertNewlinesToBr(question || ""),
         },
       }),
     });
@@ -191,7 +197,7 @@ export const sendPublicChatMessage = async (
 
       return {
         success: true,
-        answer: messageData.answer,
+        answer: convertBrToNewlines(messageData.answer || ""),
         newChatlistWorkflowID: messageData.chatlist_workflowID2,
       };
     } else {
diff --git a/src/utils/feedMapper.ts b/src/utils/feedMapper.ts
index 2fbf905..046bb92 100644
--- a/src/utils/feedMapper.ts
+++ b/src/utils/feedMapper.ts
@@ -1,4 +1,5 @@
 import { FeedItem, getAvatarUrl, getFeedImageUrl, getVideoUrl, getAudioUrl, isOwnFeed, type TeamMember } from "../services/feedService";
+import { convertBrToNewlines } from "./textFormat";
 
 export interface PostCardModel {
   id: string;
@@ -63,7 +64,7 @@ export const mapFeedItemToPostCardModel = (
     authorAvatar: getAvatarUrl(item.person_stage_id),
     image: coverImage,
     title: item.title,
-    caption: item.description,
+    caption: convertBrToNewlines(item.description || ""),
     likes: item.like_count,
     dislikes: item.dislike_count,
     comments: item.comment_count,
diff --git a/src/utils/textFormat.ts b/src/utils/textFormat.ts
new file mode 100644
index 0000000..1ec5c89
--- /dev/null
+++ b/src/utils/textFormat.ts
@@ -0,0 +1,9 @@
+export const convertNewlinesToBr = (value: string): string => {
+  if (!value) return "";
+  return value.replace(/\r\n|\r|\n/g, "<br>");
+};
+
+export const convertBrToNewlines = (value: string): string => {
+  if (!value) return "";
+  return value.replace(/<br\s*\/?>/gi, "\n");
+};
