feat(timesheet): improve inline edit autosave

src/api/contact.ts

@@ -0,0 +1,41 @@
+import { buildApiError, buildApiUrl } from "./client"
+
+const normalizeDigits = (value: string) =>
+  value
+    .replace(/[۰-۹]/g, (digit) => String("۰۱۲۳۴۵۶۷۸۹".indexOf(digit)))
+    .replace(/[٠-٩]/g, (digit) => String("٠١٢٣٤٥٦٧٨٩".indexOf(digit)))
+
+export interface ContactSubmissionPayload {
+  first_name: string
+  last_name: string
+  email: string
+  mobile: string
+  message: string
+}
+
+export interface ContactSubmissionResponse extends ContactSubmissionPayload {
+  id: string
+  status: string
+  created_at: string
+}
+
+export const submitContactForm = async (
+  payload: ContactSubmissionPayload,
+): Promise<ContactSubmissionResponse> => {
+  const response = await fetch(buildApiUrl("/api/contact/"), {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({
+      ...payload,
+      mobile: normalizeDigits(payload.mobile),
+    }),
+  })
+
+  if (!response.ok) {
+    throw await buildApiError(response)
+  }
+
+  return response.json()
+}

src/components/CreateClientModal.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState } from "react";
+import { useEffect, useState, type FormEvent } from "react";
 import { toast } from "sonner";
 import { createClient } from "../api/clients";
 import { useTranslation } from "../hooks/useTranslation";
@@ -48,8 +48,9 @@ export default function CreateClientModal({ isOpen, onClose, onSuccess, workspac
     setThumbnailFile(file);
   };
 
-  const handleSubmit = async () => {
-    if (!name.trim()) return;
+  const handleSubmit = async (event?: FormEvent<HTMLFormElement>) => {
+    event?.preventDefault();
+    if (!name.trim()) return;
     setIsLoading(true);
     try {
       await createClient(workspaceId, { name, notes, thumbnail: thumbnailFile });
@@ -72,15 +73,15 @@ export default function CreateClientModal({ isOpen, onClose, onSuccess, workspac
       <Button variant="outline" onClick={onClose} disabled={isLoading}>
         {t.actions?.cancel}
       </Button>
-      <Button onClick={handleSubmit} disabled={isLoading || !name.trim()}>
-        {isLoading ? "..." : t.clients.create}
-      </Button>
+      <Button type="submit" form="create-client-form" disabled={isLoading || !name.trim()}>
+        {isLoading ? "..." : t.clients.create}
+      </Button>
     </>
   );
 
-  return (
-    <Modal isOpen={isOpen} onClose={onClose} title={t.clients.modalTitle} footer={footer}>
-      <div className="space-y-4">
+  return (
+    <Modal isOpen={isOpen} onClose={onClose} title={t.clients.modalTitle} footer={footer}>
+      <form id="create-client-form" onSubmit={handleSubmit} className="space-y-4">
         <div>
           <label className="block text-sm font-medium mb-1 text-slate-700 dark:text-slate-300">
             {t.workspace?.thumbnailLabel || "Thumbnail"}
@@ -117,7 +118,7 @@ export default function CreateClientModal({ isOpen, onClose, onSuccess, workspac
             placeholder={t.clients.notesPlaceholder}
           />
         </div>
-      </div>
-    </Modal>
-  );
+      </form>
+    </Modal>
+  );
 }

src/components/DeleteClientModal.tsx

@@ -1,4 +1,4 @@
-import { useState } from "react";
+import { useState, type FormEvent } from "react";
 import { toast } from "sonner";
 import { type Client } from "../types/client";
 import { deleteClient } from "../api/clients";
@@ -17,8 +17,9 @@ export default function DeleteClientModal({ isOpen, onClose, onSuccess, client }
   const { t } = useTranslation();
   const [isLoading, setIsLoading] = useState(false);
 
-  const handleDelete = async () => {
-    if (!client) return;
+  const handleDelete = async (event?: FormEvent<HTMLFormElement>) => {
+    event?.preventDefault();
+    if (!client) return;
     setIsLoading(true);
     try {
       await deleteClient(client.id);
@@ -38,11 +39,12 @@ export default function DeleteClientModal({ isOpen, onClose, onSuccess, client }
       <Button variant="outline" onClick={onClose} disabled={isLoading}>
         {t.actions?.cancel}
       </Button>
-      <Button 
-        variant="destructive"
-        onClick={handleDelete} 
-        disabled={isLoading}
-      >
+      <Button
+        type="submit"
+        form="delete-client-form"
+        variant="destructive"
+        disabled={isLoading}
+      >
         {isLoading ? "..." : t.clients.delete}
       </Button>
     </>
@@ -55,10 +57,12 @@ export default function DeleteClientModal({ isOpen, onClose, onSuccess, client }
       title={t.clients.deleteConfirmTitle} 
       footer={footer}
       maxWidth="max-w-sm"
-    >
-      <p className="text-slate-500 dark:text-slate-400">
-        {client ? t.clients.deleteConfirmMessage(client.name) : ""}
-      </p>
-    </Modal>
-  );
-}
+    >
+      <form id="delete-client-form" onSubmit={handleDelete}>
+        <p className="text-slate-500 dark:text-slate-400">
+        {client ? t.clients.deleteConfirmMessage(client.name) : ""}
+        </p>
+      </form>
+    </Modal>
+  );
+}

src/components/EditClientModal.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect } from "react";
+import { useState, useEffect, type FormEvent } from "react";
 import { toast } from "sonner";
 import { type Client } from "../types/client";
 import { updateClient } from "../api/clients";
@@ -59,8 +59,9 @@ export default function EditClientModal({ isOpen, onClose, onSuccess, client }:
     setClearThumbnail(false);
   };
 
-  const handleSubmit = async () => {
-    if (!client || !name.trim()) return;
+  const handleSubmit = async (event?: FormEvent<HTMLFormElement>) => {
+    event?.preventDefault();
+    if (!client || !name.trim()) return;
     setIsLoading(true);
     try {
       await updateClient(client.id, { name, notes, thumbnail: thumbnailFile, clear_thumbnail: clearThumbnail });
@@ -80,15 +81,15 @@ export default function EditClientModal({ isOpen, onClose, onSuccess, client }:
       <Button variant="outline" onClick={onClose} disabled={isLoading}>
         {t.actions?.cancel}
       </Button>
-      <Button onClick={handleSubmit} disabled={isLoading || !name.trim()}>
-        {isLoading ? "..." : t.clients.saveChanges}
-      </Button>
+      <Button type="submit" form="edit-client-form" disabled={isLoading || !name.trim()}>
+        {isLoading ? "..." : t.clients.saveChanges}
+      </Button>
     </>
   );
 
-  return (
-    <Modal isOpen={isOpen} onClose={onClose} title={t.clients.editClient} footer={footer}>
-      <div className="space-y-4">
+  return (
+    <Modal isOpen={isOpen} onClose={onClose} title={t.clients.editClient} footer={footer}>
+      <form id="edit-client-form" onSubmit={handleSubmit} className="space-y-4">
         <div>
           <label className="block text-sm font-medium mb-1 text-slate-700 dark:text-slate-300">
             {t.workspace?.thumbnailLabel || "Thumbnail"}
@@ -138,7 +139,7 @@ export default function EditClientModal({ isOpen, onClose, onSuccess, client }:
             placeholder={t.clients.notesPlaceholder}
           />
         </div>
-      </div>
-    </Modal>
-  );
+      </form>
+    </Modal>
+  );
 }

src/components/Modal.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect } from "react";
+import React, { useEffect, useRef } from "react";
 import { X } from "lucide-react";
 import { Card } from "./ui/card";
 import { Button } from "./ui/button";
@@ -23,16 +23,44 @@ export const Modal: React.FC<ModalProps> = ({
   footer,
   maxWidth = "max-w-lg",
 }) => {
-  useEffect(() => {
-    if (isOpen) {
-      document.body.style.overflow = "hidden";
-    } else {
-      document.body.style.overflow = "unset";
-    }
-    return () => {
-      document.body.style.overflow = "unset";
-    };
-  }, [isOpen]);
+  const cardRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key === "Escape") {
+        onClose();
+      }
+    };
+
+    if (isOpen) {
+      document.body.style.overflow = "hidden";
+      document.addEventListener("keydown", handleKeyDown);
+    } else {
+      document.body.style.overflow = "unset";
+    }
+    return () => {
+      document.body.style.overflow = "unset";
+      document.removeEventListener("keydown", handleKeyDown);
+    };
+  }, [isOpen, onClose]);
+
+  useEffect(() => {
+    if (!isOpen) return;
+
+    const focusTimer = window.setTimeout(() => {
+      const activeElement = document.activeElement;
+      if (activeElement instanceof HTMLElement && cardRef.current?.contains(activeElement)) {
+        return;
+      }
+
+      const firstTextInput = cardRef.current?.querySelector<HTMLElement>(
+        'input:not([type]), input[type="text"], input[type="search"], input[type="email"], input[type="tel"], input[type="password"], input[type="number"], textarea',
+      );
+      firstTextInput?.focus();
+    }, 0);
+
+    return () => window.clearTimeout(focusTimer);
+  }, [isOpen]);
 
   if (!isOpen) return null;
 
@@ -42,6 +70,7 @@ export const Modal: React.FC<ModalProps> = ({
       onClick={onClose}
     >
       <Card 
+        ref={cardRef}
         className={`flex max-h-[calc(100vh-2rem)] w-full flex-col ${maxWidth} bg-white dark:bg-slate-900 text-slate-900 dark:text-slate-100 border-0 shadow-xl overflow-hidden rounded-2xl`}
         onClick={(e) => e.stopPropagation()}
       >

src/components/projects/ProjectCreateModal.tsx

@@ -100,7 +100,7 @@ export const ProjectCreateModal: React.FC<ProjectCreateModalProps> = ({ isOpen,
       <button onClick={onClose} type="button" className="px-4 py-2 text-sm font-medium text-slate-700 bg-white border border-slate-300 rounded-lg hover:bg-slate-50 dark:bg-slate-800 dark:text-slate-300 dark:border-slate-600 dark:hover:bg-slate-700">
         {t.actions?.cancel || "Cancel"}
       </button>
-      <button onClick={handleSubmit} disabled={loading || !formData.name} type="button" className="px-4 py-2 text-sm font-medium text-white bg-blue-600 rounded-lg hover:bg-blue-700 disabled:opacity-50">
+      <button form="create-project-form" disabled={loading || !formData.name} type="submit" className="px-4 py-2 text-sm font-medium text-white bg-blue-600 rounded-lg hover:bg-blue-700 disabled:opacity-50">
         {loading ? "..." : t.projects?.create}
       </button>
     </>
@@ -110,7 +110,7 @@ export const ProjectCreateModal: React.FC<ProjectCreateModalProps> = ({ isOpen,
 
   return (
     <Modal isOpen={isOpen} onClose={onClose} title={t.projects?.createProject} footer={footer}>
-      <form onSubmit={handleSubmit} className="space-y-4">
+      <form id="create-project-form" onSubmit={handleSubmit} className="space-y-4">
         {/* ردیف اول: عنوان و انتخاب رنگ */}
         <div className="flex items-end gap-3">
           <div className="flex-1">

src/components/projects/ProjectEditModal.tsx

@@ -154,7 +154,7 @@ export const ProjectEditModal: React.FC<ProjectEditModalProps> = ({ isOpen, onCl
         <button onClick={onClose} type="button" className="px-4 py-2 text-sm font-medium text-slate-700 bg-white border border-slate-300 rounded-lg hover:bg-slate-50 dark:bg-slate-800 dark:text-slate-300 dark:border-slate-600">
           {t.actions?.cancel || "Cancel"}
         </button>
-        <button onClick={handleSubmit} disabled={loading || !formData.name} type="button" className="px-4 py-2 text-sm font-medium text-white bg-blue-600 rounded-lg hover:bg-blue-700 disabled:opacity-50">
+        <button form="edit-project-form" disabled={loading || !formData.name} type="submit" className="px-4 py-2 text-sm font-medium text-white bg-blue-600 rounded-lg hover:bg-blue-700 disabled:opacity-50">
           {loading ? "..." : t.save || "Save"}
         </button>
       </div>
@@ -165,7 +165,7 @@ export const ProjectEditModal: React.FC<ProjectEditModalProps> = ({ isOpen, onCl
 
   return (
     <Modal isOpen={isOpen} onClose={onClose} title={t.projects.editProject} footer={footer}>
-      <form onSubmit={handleSubmit} className="space-y-4 mb-6">
+      <form id="edit-project-form" onSubmit={handleSubmit} className="space-y-4 mb-6">
         <div className="flex items-end gap-3">
           <div className="flex-1">
             <label className="block mb-1 text-sm font-medium text-slate-700 dark:text-slate-300">

src/components/ui/JalaliDatePicker.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from "react"
+import React, { useEffect, useRef, useState } from "react"
 import DatePicker, { DateObject } from "react-multi-date-picker"
 import persian from "react-date-object/calendars/persian"
 import persian_fa from "react-date-object/locales/persian_fa"
@@ -16,8 +16,10 @@ interface JalaliDatePickerProps {
 }
 
 export default function JalaliDatePicker({ value, onChange, label, disabled, inputClassName = "", placeholder }: JalaliDatePickerProps) {
-  const isFa = document.documentElement.dir === 'rtl'
-  const [isDark, setIsDark] = useState(document.documentElement.classList.contains('dark'))
+  const isFa = document.documentElement.dir === 'rtl'
+  const [isDark, setIsDark] = useState(document.documentElement.classList.contains('dark'))
+  const containerRef = useRef<HTMLDivElement>(null)
+  const [calendarPosition, setCalendarPosition] = useState("bottom-right")
 
   // Listen for dark mode changes dynamically (optional but good for UX)
   useEffect(() => {
@@ -28,17 +30,28 @@ export default function JalaliDatePicker({ value, onChange, label, disabled, inp
     return () => observer.disconnect()
   }, [])
 
-  const handleChange = (date: DateObject | null) => {
+  const handleChange = (date: DateObject | null) => {
     if (!date) {
       onChange("")
     } else {
       // Always output standard Gregorian "YYYY-MM-DD" for backend
       onChange(date.convert(gregorian, gregorian_en).format("YYYY-MM-DD"))
     }
-  }
-
-  return (
-    <div className="w-full">
+  }
+
+  const updateCalendarPosition = () => {
+    const rect = containerRef.current?.getBoundingClientRect()
+    if (!rect) return
+
+    const estimatedHeight = 340
+    const hasMoreSpaceAbove = rect.top > window.innerHeight - rect.bottom
+    const shouldOpenTop = window.innerHeight - rect.bottom < estimatedHeight && hasMoreSpaceAbove
+    const horizontal = isFa ? "left" : "right"
+    setCalendarPosition(`${shouldOpenTop ? "top" : "bottom"}-${horizontal}`)
+  }
+
+  return (
+    <div ref={containerRef} className="w-full">
       {label && (
         <label className="text-sm font-medium dark:text-slate-300 mb-1 block">
           {label}
@@ -52,13 +65,14 @@ export default function JalaliDatePicker({ value, onChange, label, disabled, inp
         format="YYYY/MM/DD"
         placeholder={placeholder || "YYYY/MM/DD"}
         onOpenPickNewDate={false}
+        onOpen={updateCalendarPosition}
         inputClass={`w-full rounded-md border border-slate-300 bg-transparent px-3 py-2 text-sm dark:border-slate-700 dark:text-white focus:outline-none focus:ring-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed ${inputClassName}`}
         containerClassName="w-full"
         className={isDark ? "bg-dark" : ""}
-        calendarPosition="bottom-right"
-        fixMainPosition
-        disabled={disabled}
-      />
+        calendarPosition={calendarPosition}
+        fixMainPosition
+        disabled={disabled}
+      />
     </div>
   )
 }

src/content/about.json

@@ -64,6 +64,52 @@
       "Project access and user roles help limit what each person can see or use.",
       "Exports and logs are designed to make review easier, not to hide important details."
     ],
+    "contact": {
+      "eyebrow": "Contact",
+      "title": "Need help or want to talk about Qlockify?",
+      "description": "Send a note or reach out through the support channels below. Contact form submissions are stored securely so the team can review and follow up.",
+      "formTitle": "Send a note",
+      "fields": {
+        "firstName": "First name",
+        "lastName": "Last name",
+        "email": "Email",
+        "mobile": "Mobile",
+        "message": "Message"
+      },
+      "placeholders": {
+        "firstName": "Your first name",
+        "lastName": "Your last name",
+        "email": "you@example.com",
+        "mobile": "09...",
+        "message": "Tell us what you need help with..."
+      },
+      "submit": "Send message",
+      "submitting": "Sending...",
+      "success": "Your message was saved. We will contact you soon.",
+      "error": "Could not send your message. Please try again.",
+      "channels": [
+        {
+          "label": "Telegram support",
+          "value": "qlockify_support",
+          "href": "https://t.me/qlockify_support"
+        },
+        {
+          "label": "Telegram channel",
+          "value": "qlockify",
+          "href": "https://t.me/qlockify"
+        },
+        {
+          "label": "Support email",
+          "value": "qlockify@gmail.com",
+          "href": "mailto:qlockify@gmail.com"
+        },
+        {
+          "label": "Mobile (message or call)",
+          "value": "09938228438",
+          "href": "tel:09938228438"
+        }
+      ]
+    },
     "cta": {
       "title": "Start with one workspace and make time easier to explain.",
       "description": "Open Qlockify, track a real workday, and compare the report with the way your team reviews work today.",
@@ -135,6 +181,52 @@
       "دسترسی پروژه و نقش کاربران کمک می‌کند هر فرد فقط چیزی را ببیند یا استفاده کند که باید.",
       "خروجی‌ها و لاگ‌ها برای ساده‌تر کردن بررسی طراحی شده‌اند، نه برای پنهان کردن جزئیات مهم."
     ],
+    "contact": {
+      "eyebrow": "تماس",
+      "title": "کمک می‌خواهید یا می‌خواهید درباره Qlockify صحبت کنیم؟",
+      "description": "یک پیام بفرستید یا از مسیرهای پشتیبانی زیر با ما در ارتباط باشید. پیام‌های فرم تماس ذخیره می‌شوند تا تیم بتواند آن‌ها را بررسی و پیگیری کند.",
+      "formTitle": "ارسال پیام",
+      "fields": {
+        "firstName": "نام",
+        "lastName": "نام خانوادگی",
+        "email": "ایمیل",
+        "mobile": "موبایل",
+        "message": "پیام"
+      },
+      "placeholders": {
+        "firstName": "نام شما",
+        "lastName": "نام خانوادگی شما",
+        "email": "you@example.com",
+        "mobile": "09...",
+        "message": "بگویید برای چه چیزی به کمک نیاز دارید..."
+      },
+      "submit": "ارسال پیام",
+      "submitting": "در حال ارسال...",
+      "success": "پیام شما ثبت شد. به‌زودی با شما تماس می‌گیریم.",
+      "error": "ارسال پیام انجام نشد. لطفا دوباره تلاش کنید.",
+      "channels": [
+        {
+          "label": "پشتیبانی تلگرام",
+          "value": "qlockify_support",
+          "href": "https://t.me/qlockify_support"
+        },
+        {
+          "label": "کانال تلگرام",
+          "value": "qlockify",
+          "href": "https://t.me/qlockify"
+        },
+        {
+          "label": "ایمیل پشتیبانی",
+          "value": "qlockify@gmail.com",
+          "href": "mailto:qlockify@gmail.com"
+        },
+        {
+          "label": "موبایل (پیام یا تماس)",
+          "value": "09938228438",
+          "href": "tel:09938228438"
+        }
+      ]
+    },
     "cta": {
       "title": "با یک ورک‌اسپیس شروع کنید و توضیح زمان را ساده‌تر کنید.",
       "description": "Qlockify را باز کنید، یک روز کاری واقعی را ثبت کنید و گزارش آن را با روش فعلی مرور کار در تیم مقایسه کنید.",

src/locales/en.ts

@@ -698,10 +698,14 @@ export const en = {
     searchTagsLabel: "Search tags...",
     noTagsFoundLabel: "No tags found.",
     searchProjectsLabel: "Search projects...",
-    noProjectsFoundLabel: "No projects found.",
-    deletedProjectLabel: "Deleted project",
-    deletedTagLabel: "Deleted tag",
-  },
+    noProjectsFoundLabel: "No projects found.",
+    deletedProjectLabel: "Deleted project",
+    deletedTagLabel: "Deleted tag",
+    startRequiredError: "Start date and time are required.",
+    endRequiredError: "End date and time must both be filled.",
+    invalidEndTimeError: "End time is invalid.",
+    endBeforeStartError: "End must be after start.",
+  },
 
   reports: {
     title: "Reports",

src/locales/fa.ts

@@ -695,10 +695,14 @@ export const fa = {
     searchTagsLabel: "جست‌وجوی تگ‌ها...",
     noTagsFoundLabel: "تگی پیدا نشد.",
     searchProjectsLabel: "جست‌وجوی پروژه‌ها...",
-    noProjectsFoundLabel: "پروژه‌ای پیدا نشد.",
-    deletedProjectLabel: "پروژه حذف‌شده",
-    deletedTagLabel: "تگ حذف‌شده",
-  },
+    noProjectsFoundLabel: "پروژه‌ای پیدا نشد.",
+    deletedProjectLabel: "پروژه حذف‌شده",
+    deletedTagLabel: "تگ حذف‌شده",
+    startRequiredError: "تاریخ و زمان شروع الزامی است.",
+    endRequiredError: "تاریخ و زمان پایان باید هر دو وارد شوند.",
+    invalidEndTimeError: "زمان پایان معتبر نیست.",
+    endBeforeStartError: "پایان باید بعد از شروع باشد.",
+  },
   reports: {
     title: "گزارش‌ها",
     description: (workspaceName: string) => `مرور گزارش فعالیت برای ${workspaceName}`,

src/pages/About.tsx

@@ -1,7 +1,10 @@
+import { useState, type FormEvent } from "react"
 import { Link, useNavigate } from "react-router-dom"
+import { toast } from "sonner"
 import {
   ArrowLeft,
   ArrowRight,
+  AtSign,
   BarChart3,
   CheckCircle2,
   Command,
@@ -9,7 +12,11 @@ import {
   Globe2,
   Layers3,
   LockKeyhole,
+  Mail,
+  MessageCircle,
   Moon,
+  Phone,
+  Send,
   ShieldCheck,
   Sparkles,
   Sun,
@@ -19,8 +26,11 @@ import {
 } from "lucide-react"
 
 import { Button } from "../components/ui/button"
+import { Input } from "../components/ui/input"
+import { TextAreaInput } from "../components/ui/TextAreaInput"
 import { useTheme } from "../components/ThemeProvider"
 import { useTranslation } from "../hooks/useTranslation"
+import { submitContactForm } from "../api/contact"
 import aboutContent from "../content/about.json"
 import { cn } from "../lib/utils"
 
@@ -29,11 +39,20 @@ type AboutContent = typeof aboutContent.en
 const sectionIcons = [Sparkles, ShieldCheck, Layers3]
 const principleIcons = [TimerReset, Waypoints, BarChart3]
 const capabilityIcons = [TimerReset, Users, FileText, LockKeyhole]
+const contactIcons = [MessageCircle, MessageCircle, Mail, Phone]
 
 export default function About() {
   const navigate = useNavigate()
   const { t, lang, setLanguage } = useTranslation()
   const { theme, setTheme } = useTheme()
+  const [contactForm, setContactForm] = useState({
+    firstName: "",
+    lastName: "",
+    email: "",
+    mobile: "",
+    message: "",
+  })
+  const [isContactSubmitting, setIsContactSubmitting] = useState(false)
 
   const content = aboutContent[lang] as AboutContent
   const isAuthenticated = typeof window !== "undefined" && !!localStorage.getItem("accessToken")
@@ -42,6 +61,36 @@ export default function About() {
     (theme === "system" && document.documentElement.classList.contains("dark"))
   const ctaTarget = isAuthenticated ? "/timesheet" : "/auth"
 
+  const updateContactField = (field: keyof typeof contactForm, value: string) => {
+    setContactForm((current) => ({ ...current, [field]: value }))
+  }
+
+  const handleContactSubmit = async (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault()
+    setIsContactSubmitting(true)
+    try {
+      await submitContactForm({
+        first_name: contactForm.firstName.trim(),
+        last_name: contactForm.lastName.trim(),
+        email: contactForm.email.trim(),
+        mobile: contactForm.mobile.trim(),
+        message: contactForm.message.trim(),
+      })
+      setContactForm({
+        firstName: "",
+        lastName: "",
+        email: "",
+        mobile: "",
+        message: "",
+      })
+      toast.success(content.contact.success)
+    } catch (error) {
+      toast.error(error instanceof Error ? error.message : content.contact.error)
+    } finally {
+      setIsContactSubmitting(false)
+    }
+  }
+
   return (
     <div className="scroll-smooth min-h-screen overflow-x-hidden bg-[radial-gradient(circle_at_top,#e0f2fe_0%,#f8fafc_36%,#eef2ff_100%)] text-slate-950 dark:bg-[radial-gradient(circle_at_top,#082f49_0%,#020617_40%,#020617_100%)] dark:text-slate-50">
       <div className="landing-aurora pointer-events-none fixed inset-0 opacity-80" />
@@ -67,13 +116,13 @@ export default function About() {
           <nav className="hidden items-center gap-2 md:flex">
             <Link
               to="/"
-              className="rounded-full px-4 py-2 text-sm font-medium text-slate-600 transition hover:bg-slate-100 hover:text-slate-950 dark:text-slate-300 dark:hover:bg-slate-900 dark:hover:text-white"
+              className="rounded-full px-4 py-2 text-sm font-medium text-slate-600 transition dark:text-slate-200 dark:hover:text-white"
             >
               {lang === "fa" ? "خانه" : "Home"}
             </Link>
             <Link
               to="/about"
-              className="rounded-full bg-slate-950 px-4 py-2 text-sm font-medium text-white shadow-sm dark:bg-white dark:text-slate-950"
+              className="rounded-ful px-4 py-2 text-sm text-white shadow-sm font-bold"
             >
               {lang === "fa" ? "درباره ما" : "About us"}
             </Link>
@@ -291,6 +340,133 @@ export default function About() {
             </div>
           </section>
 
+          <section className="grid gap-6 py-8 lg:grid-cols-[0.95fr_1.05fr]">
+            <div className="animate-landing-rise rounded-[2rem] border border-white/70 bg-white/80 p-7 shadow-[0_30px_80px_-50px_rgba(15,23,42,0.6)] backdrop-blur-xl dark:border-white/10 dark:bg-slate-950/65">
+              <div className="text-sm font-semibold uppercase tracking-[0.2em] text-cyan-700 dark:text-cyan-300">
+                {content.contact.eyebrow}
+              </div>
+              <h2 className="mt-4 text-4xl font-semibold tracking-[-0.05em] text-slate-950 dark:text-white">
+                {content.contact.title}
+              </h2>
+              <p className="mt-4 text-base leading-8 text-slate-600 dark:text-slate-300">
+                {content.contact.description}
+              </p>
+
+              <div className="mt-7 grid gap-3">
+                {content.contact.channels.map((channel, index) => {
+                  const Icon = contactIcons[index] ?? AtSign
+
+                  return (
+                    <a
+                      key={channel.label}
+                      href={channel.href}
+                      target={channel.href.startsWith("http") ? "_blank" : undefined}
+                      rel={channel.href.startsWith("http") ? "noreferrer" : undefined}
+                      className="group flex items-center justify-between gap-4 rounded-2xl border border-slate-200/80 bg-white/80 p-4 text-start shadow-sm transition hover:border-cyan-300 hover:bg-cyan-50/70 dark:border-slate-800 dark:bg-slate-900/75 dark:hover:border-cyan-500/40 dark:hover:bg-cyan-950/30"
+                    >
+                      <span className="flex min-w-0 items-center gap-3">
+                        <span className="flex h-10 w-10 shrink-0 items-center justify-center rounded-2xl bg-slate-950 text-white dark:bg-cyan-400 dark:text-slate-950">
+                          <Icon className="h-5 w-5" />
+                        </span>
+                        <span className="min-w-0">
+                          <span className="block text-sm font-semibold text-slate-950 dark:text-white">
+                            {channel.label}
+                          </span>
+                          <span className="block truncate text-sm text-slate-600 dark:text-slate-300">
+                            {channel.value}
+                          </span>
+                        </span>
+                      </span>
+                      {lang === "fa" ? (
+                        <ArrowLeft className="h-4 w-4 shrink-0 text-slate-400 transition group-hover:text-cyan-600 dark:group-hover:text-cyan-300" />
+                      ) : (
+                        <ArrowRight className="h-4 w-4 shrink-0 text-slate-400 transition group-hover:text-cyan-600 dark:group-hover:text-cyan-300" />
+                      )}
+                    </a>
+                  )
+                })}
+              </div>
+            </div>
+
+            <form
+              onSubmit={handleContactSubmit}
+              className="animate-landing-rise rounded-[2rem] border border-white/70 bg-white/85 p-7 shadow-[0_30px_80px_-50px_rgba(15,23,42,0.6)] backdrop-blur-xl dark:border-white/10 dark:bg-slate-950/70"
+            >
+              <div className="mb-6 flex items-center gap-3">
+                <span className="flex h-11 w-11 items-center justify-center rounded-2xl bg-slate-950 text-white dark:bg-cyan-400 dark:text-slate-950">
+                  <Send className="h-5 w-5" />
+                </span>
+                <h2 className="text-2xl font-semibold tracking-[-0.04em] text-slate-950 dark:text-white">
+                  {content.contact.formTitle}
+                </h2>
+              </div>
+
+              <div className="grid gap-4 sm:grid-cols-2">
+                <label className="text-sm font-medium text-slate-700 dark:text-slate-300">
+                  {content.contact.fields.firstName}
+                  <Input
+                    value={contactForm.firstName}
+                    onChange={(event) => updateContactField("firstName", event.target.value)}
+                    placeholder={content.contact.placeholders.firstName}
+                    className="mt-2 h-12 rounded-2xl"
+                    required
+                  />
+                </label>
+                <label className="text-sm font-medium text-slate-700 dark:text-slate-300">
+                  {content.contact.fields.lastName}
+                  <Input
+                    value={contactForm.lastName}
+                    onChange={(event) => updateContactField("lastName", event.target.value)}
+                    placeholder={content.contact.placeholders.lastName}
+                    className="mt-2 h-12 rounded-2xl"
+                    required
+                  />
+                </label>
+                <label className="text-sm font-medium text-slate-700 dark:text-slate-300">
+                  {content.contact.fields.email}
+                  <Input
+                    type="email"
+                    value={contactForm.email}
+                    onChange={(event) => updateContactField("email", event.target.value)}
+                    placeholder={content.contact.placeholders.email}
+                    className="mt-2 h-12 rounded-2xl"
+                    required
+                  />
+                </label>
+                <label className="text-sm font-medium text-slate-700 dark:text-slate-300">
+                  {content.contact.fields.mobile}
+                  <Input
+                    value={contactForm.mobile}
+                    onChange={(event) => updateContactField("mobile", event.target.value)}
+                    placeholder={content.contact.placeholders.mobile}
+                    className="mt-2 h-12 rounded-2xl"
+                    required
+                  />
+                </label>
+              </div>
+
+              <label className="mt-4 block text-sm font-medium text-slate-700 dark:text-slate-300">
+                {content.contact.fields.message}
+                <TextAreaInput
+                  value={contactForm.message}
+                  onChange={(event) => updateContactField("message", event.target.value)}
+                  placeholder={content.contact.placeholders.message}
+                  className="mt-2 min-h-40 rounded-2xl"
+                  required
+                />
+              </label>
+
+              <Button
+                type="submit"
+                disabled={isContactSubmitting}
+                className="mt-6 h-14 w-full rounded-full bg-slate-950 px-7 text-base text-white hover:bg-slate-800 dark:bg-cyan-400 dark:text-slate-950 dark:hover:bg-cyan-300"
+              >
+                <Send className="me-2 h-4 w-4" />
+                {isContactSubmitting ? content.contact.submitting : content.contact.submit}
+              </Button>
+            </form>
+          </section>
+
           <section className="py-8">
             <div className="relative overflow-hidden rounded-[2.5rem] border border-slate-950/5 bg-slate-950 px-6 py-10 text-white shadow-[0_40px_100px_-40px_rgba(15,23,42,0.8)] dark:border-white/10 sm:px-10">
               <div className="pointer-events-none absolute inset-y-0 right-0 w-[45%] bg-[radial-gradient(circle_at_top_right,rgba(34,211,238,0.35),transparent_55%),radial-gradient(circle_at_bottom_right,rgba(16,185,129,0.24),transparent_45%)]" />

src/pages/Landing.tsx

@@ -131,10 +131,10 @@ export default function Landing() {
           </button>
 
           <div className="hidden items-center gap-2 md:flex">
-            <Link to="/" className="rounded-full bg-slate-950 px-4 py-2 text-sm font-medium text-white shadow-sm dark:bg-white dark:text-slate-950">
+            <Link to="/" className="rounded-ful px-4 py-2 text-sm text-white shadow-sm font-bold">
               {lang === "fa" ? "خانه" : "Home"}
             </Link>
-            <Link to="/about" className="rounded-full px-4 py-2 text-sm font-medium text-slate-600 transition hover:bg-slate-100 hover:text-slate-950 dark:text-slate-300 dark:hover:bg-slate-900 dark:hover:text-white">
+            <Link to="/about" className="rounded-full px-4 py-2 text-sm font-medium text-slate-600 transition dark:text-slate-200 dark:hover:text-white">
               {t.landing.nav.about}
             </Link>
           </div>

src/pages/NotFound.tsx

@@ -1,70 +1,48 @@
-import { Link, useLocation } from "react-router-dom"
-import { ArrowLeft, ArrowRight, Command, Compass, Home } from "lucide-react"
+import { useNavigate } from "react-router-dom"
+import { ArrowLeft, ArrowRight, Home } from "lucide-react"
 
 import { Button } from "../components/ui/button"
 import { useTranslation } from "../hooks/useTranslation"
-import { cn } from "../lib/utils"
 
 export default function NotFound() {
-  const location = useLocation()
-  const { lang, t } = useTranslation()
+  const navigate = useNavigate()
+  const { lang } = useTranslation()
   const isFa = lang === "fa"
 
   return (
-    <div className="min-h-screen overflow-hidden bg-[radial-gradient(circle_at_top,#e0f2fe_0%,#f8fafc_36%,#eef2ff_100%)] text-slate-950 dark:bg-[radial-gradient(circle_at_top,#082f49_0%,#020617_40%,#020617_100%)] dark:text-slate-50">
-      <div className="landing-aurora pointer-events-none fixed inset-0 opacity-80" />
-      <div className="landing-hero-grid pointer-events-none fixed inset-0 opacity-70 dark:opacity-40" />
-
-      <main className="relative mx-auto flex min-h-screen max-w-5xl items-center px-4 py-12 sm:px-6 lg:px-8">
-        <div className="animate-landing-rise w-full overflow-hidden rounded-[2.5rem] border border-white/70 bg-white/80 p-6 shadow-[0_45px_110px_-48px_rgba(15,23,42,0.6)] backdrop-blur-2xl dark:border-white/10 dark:bg-slate-950/70 sm:p-10">
-          <div className="flex flex-col gap-8 lg:flex-row lg:items-end lg:justify-between">
-            <div className="max-w-3xl">
-              <div className="mb-5 inline-flex items-center gap-2 rounded-full border border-cyan-200/70 bg-cyan-50/80 px-4 py-2 text-sm font-semibold text-cyan-900 dark:border-cyan-500/20 dark:bg-cyan-500/10 dark:text-cyan-100">
-                <Compass className="h-4 w-4" />
-                {isFa ? "مسیر پیدا نشد" : "Route not found"}
-              </div>
-              <h1 className="text-5xl font-semibold tracking-[-0.06em] text-slate-950 sm:text-7xl dark:text-white">
-                404
-              </h1>
-              <p className="mt-5 text-xl leading-9 text-slate-600 dark:text-slate-300">
-                {isFa
-                  ? "این آدرس در رابط کاربری Qlockify تعریف نشده است."
-                  : "This endpoint is not defined in the Qlockify interface."}
-              </p>
-              <div className="mt-6 rounded-2xl border border-slate-200 bg-slate-50 px-4 py-3 font-mono text-sm text-slate-700 dark:border-slate-800 dark:bg-slate-900 dark:text-slate-200">
-                {location.pathname}
-              </div>
-            </div>
-
-            <div className="flex flex-col gap-3 sm:flex-row lg:flex-col">
-              <Button
-                asChild
-                className="h-14 rounded-full bg-slate-950 px-7 text-base text-white hover:bg-slate-800 dark:bg-cyan-400 dark:text-slate-950 dark:hover:bg-cyan-300"
-              >
-                <Link to="/">
-                  <Home className="me-2 h-4 w-4" />
-                  {isFa ? "بازگشت به خانه" : "Back home"}
-                </Link>
-              </Button>
-              <Button
-                asChild
-                variant="outline"
-                className="h-14 rounded-full border-slate-200 bg-white/85 px-7 text-base text-slate-800 shadow-sm backdrop-blur hover:bg-white dark:border-slate-800 dark:bg-slate-950/70 dark:text-slate-100 dark:hover:bg-slate-900"
-              >
-                <Link to="/about">
-                  <Command className="me-2 h-4 w-4" />
-                  {isFa ? "درباره Qlockify" : "About Qlockify"}
-                  {isFa ? (
-                    <ArrowLeft className="ms-2 h-4 w-4" />
-                  ) : (
-                    <ArrowRight className={cn("ms-2 h-4 w-4")} />
-                  )}
-                </Link>
-              </Button>
-            </div>
-          </div>
+    <main className="flex min-h-screen items-center justify-center bg-[radial-gradient(circle_at_top,#e0f2fe_0%,#f8fafc_42%,#eef2ff_100%)] px-4 text-center text-slate-950 dark:bg-[radial-gradient(circle_at_top,#082f49_0%,#020617_44%,#020617_100%)] dark:text-slate-50">
+      <section className="mx-auto max-w-2xl">
+        <div className="text-[7rem] font-semibold leading-none tracking-[-0.08em] text-slate-950 sm:text-[10rem] dark:text-white">
+          404
         </div>
-      </main>
-    </div>
+        <h1 className="mt-5 text-3xl font-semibold tracking-[-0.04em] sm:text-5xl">
+          {isFa ? "صفحه پیدا نشد" : "Page not found"}
+        </h1>
+        <p className="mx-auto mt-5 max-w-xl text-base leading-8 text-slate-600 sm:text-lg dark:text-slate-300">
+          {isFa
+            ? "این صفحه وجود ندارد یا آدرس آن تغییر کرده است."
+            : "This page does not exist or its address has changed."}
+        </p>
+        <div className="mt-9 flex flex-col justify-center gap-3 sm:flex-row">
+          <Button
+            type="button"
+            variant="outline"
+            onClick={() => navigate(-1)}
+            className="h-14 rounded-full border-slate-200 bg-white/80 px-7 text-base text-slate-800 backdrop-blur hover:bg-white dark:border-slate-800 dark:bg-slate-950/70 dark:text-slate-100 dark:hover:bg-slate-900"
+          >
+            {isFa ? <ArrowRight className="me-2 h-4 w-4" /> : <ArrowLeft className="me-2 h-4 w-4" />}
+            {isFa ? "بازگشت" : "Go back"}
+          </Button>
+          <Button
+            type="button"
+            onClick={() => navigate("/")}
+            className="h-14 rounded-full bg-slate-950 px-7 text-base text-white hover:bg-slate-800 dark:bg-cyan-400 dark:text-slate-950 dark:hover:bg-cyan-300"
+          >
+            <Home className="me-2 h-4 w-4" />
+            {isFa ? "صفحه اصلی" : "Home page"}
+          </Button>
+        </div>
+      </section>
+    </main>
   )
 }

src/pages/Projects.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useMemo, useState } from "react";
+import React, { useEffect, useMemo, useState, type FormEvent } from "react";
 import { useSearchParams } from "react-router-dom";
 import { useTranslation } from "../hooks/useTranslation";
 import { getProjects, deleteProject, type Project } from "../api/projects";
@@ -149,7 +149,8 @@ export const Projects: React.FC = () => {
     };
   }, [activeWorkspace?.id, currentPage, limit, search, isArchived, ordering, selectedClientIdsKey]);
 
-  const confirmDelete = async () => {
+  const confirmDelete = async (event?: FormEvent<HTMLFormElement>) => {
+    event?.preventDefault();
     if (!deleteModal.project) return;
     try {
       const deletedId = deleteModal.project.id;
@@ -543,7 +544,8 @@ export const Projects: React.FC = () => {
               <Button 
                 variant="destructive"
                 disabled={deleteInput !== deleteModal.project.name}
-                onClick={confirmDelete} 
+                type="submit"
+                form="delete-project-form"
                 className="rounded-xl font-semibold"
               >
                 {t.actions?.delete || 'Delete'}
@@ -551,7 +553,7 @@ export const Projects: React.FC = () => {
             </>
           }
         >
-          <div className="flex flex-col gap-4">
+          <form id="delete-project-form" onSubmit={confirmDelete} className="flex flex-col gap-4">
             <p className="text-slate-600 dark:text-slate-400 text-sm leading-relaxed">
               {t.projects?.deleteWarning || 'To confirm deletion, please type the project name:'} <strong className="text-slate-900 dark:text-white select-all">{deleteModal.project.name}</strong>
             </p>
@@ -562,7 +564,7 @@ export const Projects: React.FC = () => {
               onChange={(e) => setDeleteInput(e.target.value)}
               placeholder={deleteModal.project.name}
             />
-          </div>
+          </form>
         </Modal>
       )}
 

src/pages/Tags.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState } from "react";
+import { useEffect, useState, type FormEvent } from "react";
 import { useSearchParams } from "react-router-dom";
 import { Edit2, Plus, Tag as TagIcon, Trash2 } from "lucide-react";
 import { toast } from "sonner";
@@ -105,7 +105,8 @@ export default function Tags() {
     setFormColor(DEFAULT_COLOR);
   };
 
-  const handleSubmit = async () => {
+  const handleSubmit = async (event?: FormEvent<HTMLFormElement>) => {
+    event?.preventDefault();
     if (!activeWorkspace?.id || !formName.trim()) return;
 
     try {
@@ -284,13 +285,13 @@ export default function Tags() {
             <Button variant="secondary" onClick={closeModal}>
               {t.actions?.cancel || "Cancel"}
             </Button>
-            <Button onClick={() => void handleSubmit()} disabled={isSaving || !formName.trim()}>
+            <Button type="submit" form="tag-form" disabled={isSaving || !formName.trim()}>
               {isSaving ? "..." : (editingTag ? (t.save || "Save") : (t.create || "Create"))}
             </Button>
           </>
         }
       >
-        <div className="space-y-4">
+        <form id="tag-form" onSubmit={handleSubmit} className="space-y-4">
           <div>
             <label className="block text-sm font-medium text-slate-700 dark:text-slate-300 mb-1">
               {t.tags?.nameLabel || "Tag name"}
@@ -304,7 +305,7 @@ export default function Tags() {
             </label>
             <input type="color" value={formColor} onChange={(event) => setFormColor(event.target.value)} className="h-10 w-14 cursor-pointer rounded-md border border-slate-200 dark:border-slate-700 bg-transparent" />
           </div>
-        </div>
+        </form>
       </Modal>
 
       {deleteModal.tag && (
@@ -320,21 +321,28 @@ export default function Tags() {
               </Button>
               <Button
                 variant="destructive"
-                onClick={() => {
-                  if (!deleteModal.tag) return;
-                  void handleDelete(deleteModal.tag);
-                  setDeleteModal({ isOpen: false, tag: null });
-                }}
+                type="submit"
+                form="delete-tag-form"
               >
                 {t.actions?.delete || "Delete"}
               </Button>
             </>
           }
         >
-          <p className="text-sm leading-relaxed text-slate-600 dark:text-slate-400">
-            {(t.tags?.deleteConfirmMessage as ((name: string) => string) | undefined)?.(deleteModal.tag.name) ||
-              `Are you sure you want to delete "${deleteModal.tag.name}"?`}
-          </p>
+          <form
+            id="delete-tag-form"
+            onSubmit={(event) => {
+              event.preventDefault();
+              if (!deleteModal.tag) return;
+              void handleDelete(deleteModal.tag);
+              setDeleteModal({ isOpen: false, tag: null });
+            }}
+          >
+            <p className="text-sm leading-relaxed text-slate-600 dark:text-slate-400">
+              {(t.tags?.deleteConfirmMessage as ((name: string) => string) | undefined)?.(deleteModal.tag.name) ||
+                `Are you sure you want to delete "${deleteModal.tag.name}"?`}
+            </p>
+          </form>
         </Modal>
       )}
     </div>

src/pages/Workspaces.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState } from 'react';
+import { useEffect, useState, type FormEvent } from 'react';
 import { useNavigate, useSearchParams } from 'react-router-dom';
 import { Plus, Trash2, Pencil, Eye, LayoutDashboard } from 'lucide-react';
 import { toast } from 'sonner';
@@ -94,8 +94,9 @@ export default function Workspaces() {
     }
   };
 
-  const confirmDelete = async () => {
-    if (!deleteModal.workspace) return;
+  const confirmDelete = async (event?: FormEvent<HTMLFormElement>) => {
+    event?.preventDefault();
+    if (!deleteModal.workspace) return;
     try {
       const deletedId = deleteModal.workspace.id;
       await deleteWorkspace(deletedId);
@@ -275,15 +276,16 @@ export default function Workspaces() {
               <Button 
                 variant="destructive"
                 disabled={deleteInput !== deleteModal.workspace.name}
-                onClick={confirmDelete} 
-                className="rounded-xl font-semibold"
+                type="submit"
+                form="delete-workspace-form"
+                className="rounded-xl font-semibold"
               >
                 {t.actions?.delete || 'Delete'}
               </Button>
             </>
           }
         >
-          <div className="flex flex-col gap-4">
+          <form id="delete-workspace-form" onSubmit={confirmDelete} className="flex flex-col gap-4">
             <p className="text-slate-600 dark:text-slate-400 text-sm leading-relaxed">
               {t.workspace?.deleteWarning || 'To confirm deletion, please type the workspace name:'} <strong className="text-slate-900 dark:text-white select-all">{deleteModal.workspace.name}</strong>
             </p>
@@ -294,7 +296,7 @@ export default function Workspaces() {
               onChange={(e) => setDeleteInput(e.target.value)}
               placeholder={deleteModal.workspace.name}
             />
-          </div>
+          </form>
         </Modal>
       )}
     </div>