File size: 38,099 Bytes
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<!DOCTYPE html>
<html lang="fa" dir="rtl">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=0.8, maximum-scale=0.8, user-scalable=no">
  <title>پیام رسان شیشه‌ای | GlassChat</title>

  <!-- Tailwind CSS -->
  <script src="https://cdn.tailwindcss.com"></script>

  <!-- Font Awesome -->
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">

  <!-- Google Fonts: Vazirmatn for Persian -->
  <link href="https://fonts.googleapis.com/css2?family=Vazirmatn:wght@100;300;400;500;700;900&display=swap"
    rel="stylesheet">

  <!-- Confetti for effects -->
  <script src="https://cdn.jsdelivr.net/npm/canvas-confetti@1.6.0/dist/confetti.browser.min.js"></script>

  <script>
    tailwind.config = {
            theme: {
                extend: {
                    fontFamily: {
                        sans: ['Vazirmatn', 'sans-serif'],
                    },
                    colors: {
                        glass: {
                            100: 'rgba(255, 255, 255, 0.1)',
                            200: 'rgba(255, 255, 255, 0.2)',
                            300: 'rgba(255, 255, 255, 0.3)',
                            400: 'rgba(255, 255, 255, 0.4)',
                            500: 'rgba(255, 255, 255, 0.5)',
                        },
                        ios: {
                            blue: '#007AFF',
                            indigo: '#5856D6',
                            purple: '#AF52DE',
                            pink: '#FF2D55',
                            red: '#FF3B30',
                            orange: '#FF9500',
                            yellow: '#FFCC00',
                            green: '#34C759',
                            teal: '#5AC8FA',
                            gray: '#8E8E93',
                            bg: '#F2F2F7'
                        }
                    },
                    animation: {
                        'fade-in': 'fadeIn 0.5s ease-out',
                        'slide-up': 'slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1)',
                        'float': 'float 6s ease-in-out infinite',
                        'pulse-slow': 'pulse 4s cubic-bezier(0.4, 0, 0.6, 1) infinite',
                        'blob': 'blob 7s infinite',
                    },
                    keyframes: {
                        fadeIn: {
                            '0%': { opacity: '0' },
                            '100%': { opacity: '1' },
                        },
                        slideUp: {
                            '0%': { transform: 'translateY(30px)', opacity: '0' },
                            '100%': { transform: 'translateY(0)', opacity: '1' },
                        },
                        float: {
                            '0%, 100%': { transform: 'translateY(0)' },
                            '50%': { transform: 'translateY(-20px)' },
                        },
                        blob: {
                            '0%': { transform: 'translate(0px, 0px) scale(1)' },
                            '33%': { transform: 'translate(30px, -50px) scale(1.1)' },
                            '66%': { transform: 'translate(-20px, 20px) scale(0.9)' },
                            '100%': { transform: 'translate(0px, 0px) scale(1)' },
                        }
                    }
                }
            }
        }
  </script>

  <style>
    /* iOS Glassmorphism Base Styles */
    body {
      font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      background-attachment: fixed;
      overflow: hidden;
    }

    /* Animated Background Blobs */
    .blob {
      position: absolute;
      filter: blur(80px);
      z-index: 0;
      opacity: 0.6;
      animation: blob 7s infinite;
    }
    
    .blob-1 { top: 0; left: 0; width: 300px; height: 300px; background: #ff006e; animation-delay: 0s; }
    .blob-2 { top: 0; right: 0; width: 400px; height: 400px; background: #8338ec; animation-delay: 2s; }
    .blob-3 { bottom: 0; left: 20%; width: 350px; height: 350px; background: #3a86ff; animation-delay: 4s; }
    .blob-4 { bottom: 10%; right: 10%; width: 250px; height: 250px; background: #fb5607; animation-delay: 6s; }

    /* iOS Glass Utility Classes */
    .ios-glass {
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.3);
      box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    }
    
    .ios-glass-strong {
      background: rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(30px);
      -webkit-backdrop-filter: blur(30px);
      border: 1px solid rgba(255, 255, 255, 0.4);
      box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    }
    
    .ios-glass-dark {
      background: rgba(0, 0, 0, 0.3);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .ios-button {
      background: rgba(255, 255, 255, 0.3);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.4);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .ios-button:hover {
      background: rgba(255, 255, 255, 0.5);
      transform: translateY(-2px);
      box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
    
    .ios-button:active {
      transform: translateY(0);
    }

    .ios-input {
      background: rgba(255, 255, 255, 0.2);
      border: 1px solid rgba(255, 255, 255, 0.3);
      backdrop-filter: blur(10px);
      transition: all 0.3s;
    }
    
    .ios-input:focus {
      background: rgba(255, 255, 255, 0.35);
      border-color: rgba(255, 255, 255, 0.6);
      box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
    }

    /* Custom Scrollbar - iOS Style */
    ::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    ::-webkit-scrollbar-track {
      background: transparent;
    }
    ::-webkit-scrollbar-thumb {
      background: rgba(255, 255, 255, 0.3);
      border-radius: 10px;
    }
    ::-webkit-scrollbar-thumb:hover {
      background: rgba(255, 255, 255, 0.5);
    }

    /* Message Bubbles - Glass Style */
    .message-bubble-me {
      background: linear-gradient(135deg, rgba(0, 122, 255, 0.8), rgba(88, 86, 214, 0.8));
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.3);
      box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
    }
    
    .message-bubble-other {
      background: rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.4);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    }

    /* Animations */
    .message-enter {
      animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }
    
    @keyframes popIn {
      from { opacity: 0; transform: scale(0.8) translateY(10px); }
      to { opacity: 1; transform: scale(1) translateY(0); }
    }

    /* Glass Card Hover Effect */
    .glass-card {
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      transform: translateY(-5px);
      background: rgba(255, 255, 255, 0.25);
      box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }

    /* iOS Toggle Switch */
    .ios-toggle {
      appearance: none;
      width: 50px;
      height: 30px;
      background: rgba(255,255,255,0.3);
      border-radius: 30px;
      position: relative;
      cursor: pointer;
      border: 1px solid rgba(255,255,255,0.4);
    }
    .ios-toggle::after {
      content: '';
      position: absolute;
      width: 26px;
      height: 26px;
      background: white;
      border-radius: 50%;
      top: 1px;
      right: 1px;
      transition: transform 0.3s;
      box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    }
    .ios-toggle:checked::after {
      transform: translateX(-20px);
    }
    .ios-toggle:checked {
      background: #34C759;
    }

    /* Responsive Adjustments */
    @media (max-width: 768px) {
      .ios-glass, .ios-glass-strong {
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
      }
    }

    /* Loading Spinner */
    .ios-spinner {
      width: 20px;
      height: 20px;
      border: 2px solid rgba(255,255,255,0.3);
      border-top-color: white;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
    }
    
    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    /* Tab Animation */
    .tab-active {
      background: rgba(255, 255, 255, 0.4);
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
  </style>
</head>

<body class="text-white h-screen overflow-hidden selection:bg-white/30 selection:text-white">

  <!-- Animated Background -->
  <div class="blob blob-1"></div>
  <div class="blob blob-2"></div>
  <div class="blob blob-3"></div>
  <div class="blob blob-4"></div>

  <!-- Toast Notification Container -->
  <div id="toast-container"
    class="fixed top-5 left-1/2 transform -translate-x-1/2 z-50 flex flex-col gap-3 w-full max-w-sm px-4 pointer-events-none">
  </div>

  <!-- ================= AUTHENTICATION VIEW ================= -->
  <div id="auth-view" class="h-full w-full flex items-center justify-center relative z-10 p-4">
    
    <div class="ios-glass-strong p-8 rounded-3xl shadow-2xl w-full max-w-md animate-slide-up mx-4 relative overflow-hidden">
      <!-- Decorative shine effect -->
      <div class="absolute top-0 left-0 right-0 h-1/2 bg-gradient-to-b from-white/20 to-transparent pointer-events-none"></div>
      
      <div class="text-center mb-8 relative">
        <div class="w-20 h-20 ios-glass rounded-3xl mx-auto flex items-center justify-center text-white text-3xl shadow-lg mb-4 rotate-3 hover:rotate-6 transition-transform duration-500 border border-white/40">
          <i class="fa-solid fa-comments"></i>
        </div>
        <h1 class="text-3xl font-bold text-white drop-shadow-lg">پیام رسان شیشه‌ای</h1>
        <p class="text-white/80 mt-2 text-sm font-light">بدون نیاز به سرور، فقط با مرورگر</p>
      </div>

      <!-- Tabs -->
      <div class="flex bg-black/10 p-1.5 rounded-2xl mb-6 backdrop-blur-sm border border-white/10">
        <button onclick="switchAuthTab('login')" id="tab-login" class="flex-1 py-3 rounded-xl text-sm font-bold transition-all duration-300 tab-active text-white">ورود</button>
        <button onclick="switchAuthTab('register')" id="tab-register" class="flex-1 py-3 rounded-xl text-sm font-medium text-white/70 hover:text-white transition-all duration-300">ثبت نام</button>
      </div>

      <!-- Login Form -->
      <form id="login-form" class="space-y-4" onsubmit="handleLogin(event)">
        <div class="group">
          <label class="block text-xs font-bold text-white/80 mb-2 mr-1">شماره موبایل</label>
          <div class="relative">
            <i class="fa-solid fa-phone absolute right-4 top-3.5 text-white/60"></i>
            <input type="tel" id="login-phone" placeholder="09XXXXXXXXX" class="w-full ios-input rounded-2xl py-3.5 pr-12 pl-4 text-white placeholder-white/40 focus:outline-none" required>
          </div>
        </div>
        <div class="group">
          <label class="block text-xs font-bold text-white/80 mb-2 mr-1">رمز عبور</label>
          <div class="relative">
            <i class="fa-solid fa-lock absolute right-4 top-3.5 text-white/60"></i>
            <input type="password" id="login-password" placeholder="••••••••" class="w-full ios-input rounded-2xl py-3.5 pr-12 pl-4 text-white placeholder-white/40 focus:outline-none" required>
          </div>
        </div>
        <button type="submit" class="w-full bg-white/20 hover:bg-white/30 text-white font-bold py-4 rounded-2xl shadow-lg border border-white/40 transition-all transform hover:scale-[1.02] active:scale-95 backdrop-blur-sm mt-6">
          ورود به حساب
        </button>
      </form>

      <!-- Register Form (Hidden by default) -->
      <form id="register-form" class="space-y-4 hidden" onsubmit="handleRegister(event)">
        <div>
          <label class="block text-xs font-bold text-white/80 mb-2 mr-1">نام کامل</label>
          <div class="relative">
            <i class="fa-solid fa-user absolute right-4 top-3.5 text-white/60"></i>
            <input type="text" id="reg-name" placeholder="مثلا: علی احمدی" class="w-full ios-input rounded-2xl py-3.5 pr-12 pl-4 text-white placeholder-white/40 focus:outline-none" required>
          </div>
        </div>
        <div>
          <label class="block text-xs font-bold text-white/80 mb-2 mr-1">شماره موبایل</label>
          <div class="relative">
            <i class="fa-solid fa-phone absolute right-4 top-3.5 text-white/60"></i>
            <input type="tel" id="reg-phone" placeholder="09XXXXXXXXX" class="w-full ios-input rounded-2xl py-3.5 pr-12 pl-4 text-white placeholder-white/40 focus:outline-none" required>
          </div>
        </div>
        <div>
          <label class="block text-xs font-bold text-white/80 mb-2 mr-1">رمز عبور</label>
          <div class="relative">
            <i class="fa-solid fa-lock absolute right-4 top-3.5 text-white/60"></i>
            <input type="password" id="reg-password" placeholder="حداقل 4 کاراکتر" class="w-full ios-input rounded-2xl py-3.5 pr-12 pl-4 text-white placeholder-white/40 focus:outline-none" required>
          </div>
        </div>
        <button type="submit" class="w-full bg-white/20 hover:bg-white/30 text-white font-bold py-4 rounded-2xl shadow-lg border border-white/40 transition-all transform hover:scale-[1.02] active:scale-95 backdrop-blur-sm mt-6">
          ایجاد حساب کاربری
        </button>
      </form>

      <div class="mt-8 text-center">
        <p class="text-xs text-white/60">
          Built with <a href="https://huggingface.co/spaces/akhaliq/anycoder" target="_blank"
            class="text-white hover:text-white/80 underline decoration-white/30">anycoder</a>
        </p>
      </div>
    </div>
  </div>

  <!-- ================= DASHBOARD VIEW ================= -->
  <div id="dashboard-view" class="hidden h-full w-full flex flex-col md:flex-row relative z-10">

    <!-- Sidebar -->
    <aside class="w-full md:w-80 ios-glass border-l border-white/20 flex flex-col z-20 shadow-2xl md:shadow-none h-full">
      <!-- User Profile Header -->
      <div class="p-6 border-b border-white/10 bg-white/5">
        <div class="flex items-center gap-4">
          <div class="relative">
            <div class="w-14 h-14 rounded-full bg-gradient-to-tr from-ios-blue to-ios-purple flex items-center justify-center text-white text-xl font-bold shadow-lg border-2 border-white/30">
              <span id="user-avatar-initial">U</span>
            </div>
            <div class="absolute bottom-0 right-0 w-4 h-4 bg-ios-green border-2 border-white rounded-full shadow-sm"></div>
          </div>
          <div class="flex-1">
            <h2 id="user-name-display" class="font-bold text-white text-lg drop-shadow-md">کاربر</h2>
            <p id="user-phone-display" class="text-xs text-white/70 font-mono">09--------</p>
          </div>
          <button onclick="logout()" class="text-white/60 hover:text-white hover:bg-white/20 p-2 rounded-full transition-all" title="خروج">
            <i class="fa-solid fa-power-off text-lg"></i>
          </button>
        </div>
      </div>

      <!-- Create Room Section -->
      <div class="p-6 border-b border-white/10">
        <div class="flex justify-between items-center mb-4">
          <h3 class="font-bold text-white drop-shadow-sm">اتاق های من</h3>
          <span id="room-count-badge" class="ios-glass text-white text-xs font-bold px-3 py-1 rounded-full border border-white/30">0/3</span>
        </div>
        <button onclick="openCreateRoomModal()" id="btn-create-room" class="w-full py-3 border-2 border-dashed border-white/30 text-white/90 rounded-2xl hover:bg-white/20 hover:border-white/50 transition-all flex items-center justify-center gap-2 font-medium text-sm backdrop-blur-sm">
          <i class="fa-solid fa-plus"></i> ساخت اتاق جدید
        </button>
        <p id="room-limit-msg" class="text-xs text-red-300 mt-3 hidden text-center font-medium drop-shadow">شما به حداکثر تعداد اتاق رسیدید.</p>
      </div>

      <!-- Room List -->
      <div class="flex-1 overflow-y-auto p-3 space-y-2" id="room-list-container">
        <!-- Rooms injected via JS -->
        <div class="text-center mt-10 text-white/50 text-sm flex flex-col items-center">
          <div class="w-16 h-16 ios-glass rounded-full flex items-center justify-center mb-3 border border-white/20">
            <i class="fa-regular fa-folder-open text-2xl"></i>
          </div>
          <p>هنوز اتاقی نساختید</p>
        </div>
      </div>
    </aside>

    <!-- Main Content Area -->
    <main class="flex-1 flex flex-col h-full relative">
      <!-- Top Bar -->
      <header class="h-16 ios-glass border-b border-white/10 flex items-center justify-between px-6 shadow-sm z-10">
        <div class="flex items-center gap-3">
          <div class="md:hidden text-white/80 cursor-pointer hover:bg-white/20 p-2 rounded-full transition-all">
            <i class="fa-solid fa-bars text-xl"></i>
          </div>
          <h1 class="font-bold text-xl text-white drop-shadow-md hidden md:block">داشبورد</h1>
        </div>
        <div class="flex items-center gap-4">
          <a href="https://huggingface.co/spaces/akhaliq/anycoder" target="_blank"
            class="text-xs ios-glass hover:bg-white/30 text-white px-4 py-2 rounded-full transition-all border border-white/20 shadow-sm">
            Built with anycoder
          </a>
        </div>
      </header>

      <!-- Dashboard Content / Welcome -->
      <div id="welcome-screen" class="flex-1 flex flex-col items-center justify-center p-8 text-center overflow-y-auto">
        <div class="w-32 h-32 ios-glass rounded-full flex items-center justify-center mb-6 relative border border-white/30 shadow-2xl">
          <i class="fa-solid fa-rocket text-4xl text-white/80 drop-shadow-lg"></i>
          <div class="absolute inset-0 border-2 border-white/30 border-dashed rounded-full animate-spin-slow" style="animation-duration: 15s;"></div>
        </div>
        <h2 class="text-3xl font-bold text-white mb-3 drop-shadow-lg">به پیام رسان خوش آمدید</h2>
        <p class="text-white/80 max-w-md mb-10 text-lg leading-relaxed">یک اتاق جدید بسازید یا از لیست سمت راست یکی را انتخاب کنید تا گفتگو را شروع کنید.</p>

        <div class="grid grid-cols-1 md:grid-cols-3 gap-4 w-full max-w-3xl text-right">
          <div class="glass-card ios-glass p-5 rounded-2xl border border-white/20 cursor-pointer group">
            <div class="w-12 h-12 rounded-2xl bg-ios-blue/30 flex items-center justify-center mb-4 text-white text-xl border border-white/20 shadow-lg group-hover:scale-110 transition-transform">
              <i class="fa-solid fa-bolt"></i>
            </div>
            <h4 class="font-bold text-white mb-2 text-lg drop-shadow-md">سریع و آنی</h4>
            <p class="text-sm text-white/70 leading-relaxed">بدون نیاز به سرور، داده ها در مرورگر شما ذخیره می شوند.</p>
          </div>
          
          <div class="glass-card ios-glass p-5 rounded-2xl border border-white/20 cursor-pointer group">
            <div class="w-12 h-12 rounded-2xl bg-ios-purple/30 flex items-center justify-center mb-4 text-white text-xl border border-white/20 shadow-lg group-hover:scale-110 transition-transform">
              <i class="fa-solid fa-link"></i>
            </div>
            <h4 class="font-bold text-white mb-2 text-lg drop-shadow-md">اشتراک گذاری</h4>
            <p class="text-sm text-white/70 leading-relaxed">لینک اتاق را کپی کنید و برای دوستانتان بفرستید.</p>
          </div>
          
          <div class="glass-card ios-glass p-5 rounded-2xl border border-white/20 cursor-pointer group">
            <div class="w-12 h-12 rounded-2xl bg-ios-green/30 flex items-center justify-center mb-4 text-white text-xl border border-white/20 shadow-lg group-hover:scale-110 transition-transform">
              <i class="fa-solid fa-shield-halved"></i>
            </div>
            <h4 class="font-bold text-white mb-2 text-lg drop-shadow-md">امنیت محلی</h4>
            <p class="text-sm text-white/70 leading-relaxed">هیچ داده ای به سرور ارسال نمی شود. کاملا خصوصی.</p>
          </div>
        </div>
      </div>

      <!-- Chat Interface (Hidden initially) -->
      <div id="chat-interface" class="hidden flex-col h-full absolute inset-0 bg-transparent z-20 animate-fade-in backdrop-blur-sm">
        <!-- Chat Header -->
        <div class="h-16 ios-glass border-b border-white/10 flex items-center justify-between px-4 shadow-lg">
          <div class="flex items-center gap-3">
            <button onclick="closeChat()" class="md:hidden w-10 h-10 flex items-center justify-center rounded-full hover:bg-white/20 text-white transition-all">
              <i class="fa-solid fa-arrow-right"></i>
            </button>
            <div class="w-10 h-10 rounded-full bg-gradient-to-br from-ios-indigo to-ios-blue flex items-center justify-center text-white font-bold shadow-md border border-white/30">
              <i class="fa-solid fa-hashtag"></i>
            </div>
            <div>
              <h3 id="chat-room-name" class="font-bold text-white drop-shadow-md">نام اتاق</h3>
              <div class="flex items-center gap-2 text-xs text-white/70">
                <span class="w-2 h-2 bg-ios-green rounded-full shadow-sm animate-pulse"></span>
                <span id="chat-user-count">2 عضو آنلاین</span>
              </div>
            </div>
          </div>
          <div class="flex items-center gap-2">
            <button onclick="copyRoomLink()" class="p-3 text-white/70 hover:text-white hover:bg-white/20 rounded-full transition-all" title="کپی لینک">
              <i class="fa-solid fa-share-nodes"></i>
            </button>
            <button onclick="closeChat()" class="hidden md:block p-3 text-white/70 hover:text-white hover:bg-white/20 rounded-full transition-all" title="بستن">
              <i class="fa-solid fa-xmark"></i>
            </button>
          </div>
        </div>

        <!-- Messages Area -->
        <div id="messages-container" class="flex-1 overflow-y-auto p-4 space-y-4">
          <!-- Messages injected via JS -->
        </div>

        <!-- Input Area -->
        <div class="p-4 ios-glass border-t border-white/10 backdrop-blur-xl">
          <form onsubmit="sendMessage(event)" class="flex gap-3 items-center">
            <input type="text" id="message-input" placeholder="پیام خود را بنویسید..." class="flex-1 ios-input rounded-full px-6 py-3.5 text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/30" autocomplete="off">
            <button type="submit" class="bg-white/20 hover:bg-white/30 text-white w-12 h-12 rounded-full flex items-center justify-center shadow-lg border border-white/40 transition-all transform active:scale-95 hover:rotate-12">
              <i class="fa-solid fa-paper-plane"></i>
            </button>
          </form>
        </div>
      </div>
    </main>
  </div>

  <!-- Create Room Modal -->
  <div id="create-room-modal" class="fixed inset-0 z-50 hidden">
    <div class="absolute inset-0 bg-black/40 backdrop-blur-sm transition-opacity" onclick="closeCreateRoomModal()"></div>
    <div class="absolute top-1/2 left-1/2 transform -translate-x-1/2 -translate-y-1/2 w-full max-w-md p-4">
      <div class="ios-glass-strong rounded-3xl shadow-2xl p-6 animate-slide-up border border-white/40">
        <div class="flex justify-between items-center mb-6">
          <h3 class="text-xl font-bold text-white drop-shadow-md">ساخت اتاق جدید</h3>
          <button onclick="closeCreateRoomModal()" class="text-white/70 hover:text-white hover:bg-white/20 w-8 h-8 rounded-full flex items-center justify-center transition-all">
            <i class="fa-solid fa-xmark text-xl"></i>
          </button>
        </div>
        <form onsubmit="handleCreateRoom(event)">
          <div class="mb-6">
            <label class="block text-sm font-bold text-white/80 mb-2 mr-1">نام اتاق</label>
            <input type="text" id="new-room-name" class="w-full ios-input rounded-2xl px-4 py-3.5 text-white placeholder-white/40 focus:outline-none" placeholder="مثلا: گروه دوستان" required>
          </div>
          <div class="flex gap-3">
            <button type="button" onclick="closeCreateRoomModal()" class="flex-1 py-3.5 rounded-2xl border border-white/30 text-white font-bold hover:bg-white/20 transition-all backdrop-blur-sm">انصراف</button>
            <button type="submit" class="flex-1 py-3.5 rounded-2xl bg-white/20 hover:bg-white/30 text-white font-bold border border-white/40 shadow-lg transition-all transform hover:scale-[1.02] active:scale-95 backdrop-blur-sm">ساختن</button>
          </div>
        </form>
      </div>
    </div>
  </div>

  <script>
    // --- DATA & STATE MANAGEMENT ---
        
        // Simulating a database using LocalStorage
        const DB_KEYS = {
            USERS: 'chat_app_users',
            ROOMS: 'chat_app_rooms',
            MESSAGES: 'chat_app_messages',
            SESSION: 'chat_app_session'
        };

        let currentUser = null;
        let currentRoomId = null;

        // --- INITIALIZATION ---

        document.addEventListener('DOMContentLoaded', () => {
            checkSession();
            
            // Check URL for room invite
            const urlParams = new URLSearchParams(window.location.search);
            const inviteRoomId = urlParams.get('room');
            if (inviteRoomId) {
                // If user is logged in, try to join. If not, store intent.
                // For this simple version, we just show a toast if they are logged in.
                if(currentUser) {
                    joinRoomById(inviteRoomId);
                } else {
                    showToast('لطفا ابتدا وارد شوید تا بتوانید به اتاق دعوت شده بپیوندید.', 'info');
                }
            }
        });

        function checkSession() {
            const session = localStorage.getItem(DB_KEYS.SESSION);
            if (session) {
                currentUser = JSON.parse(session);
                showDashboard();
            } else {
                showAuth();
            }
        }

        // --- AUTHENTICATION LOGIC ---

        function switchAuthTab(tab) {
            const loginForm = document.getElementById('login-form');
            const registerForm = document.getElementById('register-form');
            const loginTab = document.getElementById('tab-login');
            const registerTab = document.getElementById('tab-register');

            if (tab === 'login') {
                loginForm.classList.remove('hidden');
                registerForm.classList.add('hidden');
                loginTab.classList.add('tab-active', 'text-white');
                loginTab.classList.remove('text-white/70');
                registerTab.classList.remove('tab-active', 'text-white');
                registerTab.classList.add('text-white/70');
            } else {
                loginForm.classList.add('hidden');
                registerForm.classList.remove('hidden');
                registerTab.classList.add('tab-active', 'text-white');
                registerTab.classList.remove('text-white/70');
                loginTab.classList.remove('tab-active', 'text-white');
                loginTab.classList.add('text-white/70');
            }
        }

        function handleRegister(e) {
            e.preventDefault();
            const name = document.getElementById('reg-name').value;
            const phone = document.getElementById('reg-phone').value;
            const password = document.getElementById('reg-password').value;

            let users = JSON.parse(localStorage.getItem(DB_KEYS.USERS) || '[]');

            if (users.find(u => u.phone === phone)) {
                showToast('این شماره قبلا ثبت نام شده است.', 'error');
                return;
            }

            const newUser = {
                id: Date.now().toString(),
                name,
                phone,
                password, // In a real app, hash this!
                createdAt: new Date().toISOString()
            };

            users.push(newUser);
            localStorage.setItem(DB_KEYS.USERS, JSON.stringify(users));
            
            // Auto login
            currentUser = { id: newUser.id, name: newUser.name, phone: newUser.phone };
            localStorage.setItem(DB_KEYS.SESSION, JSON.stringify(currentUser));
            
            confetti({
                particleCount: 100,
                spread: 70,
                origin: { y: 0.6 },
                colors: ['#ffffff', '#rgba(255,255,255,0.8)', '#rgba(255,255,255,0.5)']
            });

            showToast('ثبت نام با موفقیت انجام شد!', 'success');
            showDashboard();
        }

        function handleLogin(e) {
            e.preventDefault();
            const phone = document.getElementById('login-phone').value;
            const password = document.getElementById('login-password').value;

            const users = JSON.parse(localStorage.getItem(DB_KEYS.USERS) || '[]');
            const user = users.find(u => u.phone === phone && u.password === password);

            if (user) {
                currentUser = { id: user.id, name: user.name, phone: user.phone };
                localStorage.setItem(DB_KEYS.SESSION, JSON.stringify(currentUser));
                showToast(`خوش آمدید ${user.name}`, 'success');
                showDashboard();
            } else {
                showToast('شماره یا رمز عبور اشتباه است.', 'error');
            }
        }

        function logout() {
            localStorage.removeItem(DB_KEYS.SESSION);
            currentUser = null;
            showAuth();
            showToast('از حساب کاربری خارج شدید.', 'info');
        }

        // --- VIEW MANAGEMENT ---

        function showAuth() {
            document.getElementById('auth-view').classList.remove('hidden');
            document.getElementById('dashboard-view').classList.add('hidden');
        }

        function showDashboard() {
            document.getElementById('auth-view').classList.add('hidden');
            document.getElementById('dashboard-view').classList.remove('hidden');
            
            // Update Profile Info
            document.getElementById('user-name-display').innerText = currentUser.name;
            document.getElementById('user-phone-display').innerText = currentUser.phone;
            document.getElementById('user-avatar-initial').innerText = currentUser.name.charAt(0);

            renderRoomList();
        }

        // --- ROOM MANAGEMENT ---

        function renderRoomList() {
            const allRooms = JSON.parse(localStorage.getItem(DB_KEYS.ROOMS) || '[]');
            // Filter rooms created by current user OR rooms where user is a member
            // For this demo, we show rooms user created + rooms they joined via link (simplified logic)
            const myRooms = allRooms.filter(r => r.creatorId === currentUser.id || (r.members && r.members.includes(currentUser.id)));
            
            const container = document.getElementById('room-list-container');
            const countBadge = document.getElementById('room-count-badge');
            const createBtn = document.getElementById('btn-create-room');
            const limitMsg = document.getElementById('room-limit-msg');

            // Update Badge
            const createdCount = allRooms.filter(r => r.creatorId === currentUser.id).length;
            countBadge.innerText = `${createdCount}/3`;

            // Handle Limit
            if (createdCount >= 3) {
                createBtn.disabled = true;
                createBtn.classList.add('opacity-50', 'cursor-not-allowed');
                limitMsg.classList.remove('hidden');
            } else {
                createBtn.disabled = false;
                createBtn.classList.remove('opacity-50', 'cursor-not-allowed');
                limitMsg.classList.add('hidden');
            }

            // Render List
            if (myRooms.length === 0) {
                container.innerHTML = `
                    <div class="text-center mt-10 text-white/50 text-sm flex flex-col items-center">
                        <div class="w-16 h-16 ios-glass rounded-full flex items-center justify-center mb-3 border border-white/20 shadow-lg">
                            <i class="fa-regular fa-folder-open text-2xl"></i>
                        </div>
                        <p>هنوز اتاقی نساختید</p>
                    </div>`;
                return;
            }

            container.innerHTML = myRooms.map(room => `
                <div onclick="openRoom('${room.id}')" class="group p-3 rounded-2xl hover:bg-white/20 cursor-pointer border border-transparent hover:border-white/20 transition-all flex items-center justify-between glass-card mb-2">
                    <div class="flex items-center gap-3">
                        <div class="w-10 h-10 rounded-xl ios-glass flex items-center justify-center font-bold text-white shadow-md border border-white/20 group-hover:scale-110 transition-transform">
                            ${room.name.charAt(0)}
                        </div>
                        <div>
                            <h4 class="font-bold text-white text-sm drop-shadow-sm">${room.name}</h4>
                            <p class="text-xs text-white/60">ایجاد شده در ${new Date(room.createdAt).toLocaleDateString('fa-IR')}</p>
                        </div>
                    </div>
                    <i class="fa-solid fa-chevron-left text-white/40 text-xs group-hover:text-white group-hover:translate-x-1 transition-all"></i>
                </div>
            `).join('');
        }

        function openCreateRoomModal() {
            document.getElementById('create-room-modal').classList.remove('hidden');
        }

        function closeCreateRoomModal() {
            document.getElementById('create-room-modal').classList.add('hidden');
        }

        function handleCreateRoom(e) {
            e.preventDefault();
            const name = document.getElementById('new-room-name').value;
            
            const rooms = JSON.parse(localStorage.getItem(DB_KEYS.ROOMS) || '[]');
            const myRoomCount = rooms.filter(r => r.creatorId === currentUser.id).length;

            if (myRoomCount >= 3) {
                showToast('شما نمی توانید بیش از 3 اتاق بسازید.', 'error');
                return;
            }

            const newRoom = {
                id: 'room_' + Date.now(),
                name: name,
                creatorId: currentUser.id,
                members: [currentUser.id], // Creator is first member
                createdAt: new Date().toISOString()
            };

            rooms.push(newRoom);
            localStorage.setItem(DB_KEYS.ROOMS, JSON.stringify(rooms));

            closeCreateRoomModal();
            document.getElementById('new-room-name').value = '';
            renderRoomList();
            showToast('اتاق با موفقیت ساخته شد!', 'success');
            
            // Auto open
            openRoom(newRoom.id);
        }

        function joinRoomById(roomId) {
            const rooms = JSON.parse(localStorage.getItem(DB_KEYS.ROOMS) || '[]');
            const roomIndex = rooms.findIndex(r => r.id === roomId);

            if (roomIndex === -1) {
                showToast('اتاق مورد نظر یافت نشد.', 'error');
                return;
            }

            // Add user to members if not already
            if (!rooms[roomIndex].members) rooms[roomIndex].members = [];
            if (!rooms[roomIndex].members.includes(currentUser.id)) {
                rooms[roomIndex].members.push(currentUser.id);
                localStorage.setItem(DB_KEYS.ROOMS, JSON.stringify(rooms));
                showToast('شما به اتاق پیوستید!', 'success');
                renderRoomList();
            }
            
            openRoom(roomId);
        }

        // --- CHAT LOGIC ---

        function openRoom(roomId) {
            currentRoomId = roomId;
            const rooms = JSON.parse(localStorage.getItem(DB_KEYS.ROOMS) || '[]');
            const room = rooms.find(r => r.id === roomId);

            if (!room) return;

            // UI Updates
            document.getElementById('welcome-screen').classList.add('hidden');
            document.getElementById('chat-interface').classList.remove('hidden');
            document.getElementById('chat-interface').classList.add('flex');
            
            document.getElementById('chat-room-name').innerText = room.name;
            document.getElementById('chat-user-count').innerText = `${room.members ? room.members.length : 1} عضو`;

            loadMessages();
            
            // Focus input
            setTimeout(() => document.getElementById('message-input').focus(), 100);
        }

        function closeChat() {
            document.getElementById('chat-interface').classList.add('hidden');
            document.getElementBy