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<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <!-- Viewport Settings: Disables zoom, removes blue tap highlights on mobile devices -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover">
    <meta name="description" content="Arjun 2.O Ultimate Enterprise Artificial Intelligence System engineered by Abhay Kumar.">
    <meta name="theme-color" content="#FF9933">
    
    <title>Arjun 2.O - Professional Advanced AI</title>
    
    <!-- =========================================================================================
         [1] EXTERNAL RESOURCES, FONTS & LIBRARIES (बाहरी स्रोत)
         ========================================================================================= -->
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    
    <!-- Professional Typography: Inter for UI, Geist Mono for Code, Instrument Serif for Headers -->
    <link href="https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@300;400;500;600;700;800;900&family=Geist+Mono:wght@400;500;600;700&display=swap" rel="stylesheet">
    
    <!-- Syntax Highlighting (Atom One Dark for Workspace Environment) -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/atom-one-dark.min.css">
    
    <!-- Data Extraction & Rendering Utilities -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/mammoth/1.6.0/mammoth.browser.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/12.0.1/marked.min.js"></script>

    <!-- =========================================================================================
         [2] MASSIVE ENTERPRISE CSS ARCHITECTURE (विस्तृत और उन्नत स्टाइलिंग)
         ========================================================================================= -->
    <style>
        /* ---------------------------------------------------------------------------------------
           A. CSS VARIABLES, DESIGN TOKENS & TIRANGA BRANDING
           --------------------------------------------------------------------------------------- */
        :root {
            /* Brand Identity: Saffron, White, Green (Tiranga) */
            --brand-saffron: #FF9933;
            --brand-saffron-light: rgba(255, 153, 51, 0.12);
            --brand-saffron-dark: #e68a2e;
            --brand-saffron-glow: rgba(255, 153, 51, 0.4);
            
            --brand-white: #FFFFFF;
            --brand-white-glass: rgba(255, 255, 255, 0.88);
            
            --brand-green: #138808;
            --brand-green-light: rgba(19, 136, 8, 0.12);
            --brand-green-dark: #0f6e06;
            --brand-green-glow: rgba(19, 136, 8, 0.4);
            
            /* Structural Colors & Backgrounds */
            --bg-primary: #ffffff;
            --bg-secondary: #f8f9fa;
            --bg-tertiary: #f1f3f5;
            --bg-glass: rgba(255, 255, 255, 0.75);
            --bg-glass-heavy: rgba(255, 255, 255, 0.95);
            --bg-overlay: rgba(0, 0, 0, 0.5);
            
            /* Text & Typography Colors */
            --text-primary: #111827;
            --text-secondary: #4b5563;
            --text-tertiary: #9ca3af;
            --text-inverse: #ffffff;
            --text-error: #ef4444;
            
            /* Borders & Dividers */
            --border-light: rgba(0, 0, 0, 0.08);
            --border-medium: rgba(0, 0, 0, 0.15);
            --border-focus: rgba(255, 153, 51, 0.4);
            
            /* Shadows & Elevation */
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
            --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.05), 0 10px 10px -5px rgba(0,0,0,0.02);
            --shadow-inner: inset 0 2px 4px rgba(0,0,0,0.06);
            
            /* Font Families */
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --font-mono: 'Geist Mono', Consolas, Monaco, monospace;
            --font-serif: 'Instrument Serif', Georgia, serif;
            
            /* Radii */
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            
            /* Animation Easing */
            --ease-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --ease-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --ease-spring: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            
            /* Z-Indices */
            --z-ambient: -1;
            --z-base: 1;
            --z-header: 10;
            --z-dock: 20;
            --z-workspace: 25;
            --z-dropdown: 50;
            --z-sidebar: 100;
            --z-modal: 5000;
            --z-toast: 9000;
            --z-live: 9999;
        }

        /* ---------------------------------------------------------------------------------------
           B. GLOBAL RESET & ANTI-BLUE-HIGHLIGHT (सम्पूर्ण यूज़र इंटरफ़ेस फिक्स)
           --------------------------------------------------------------------------------------- */
        *, *::before, *::after { 
            box-sizing: border-box; 
            margin: 0; 
            padding: 0;
            /* CRITICAL: REMOVE BLUE TAP HIGHLIGHT ON MOBILE/BROWSERS */
            -webkit-tap-highlight-color: transparent !important;
            -webkit-touch-callout: none !important;
        }
        
        html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        
        body {
            height: 100dvh; 
            width: 100vw; 
            overflow: hidden;
            background-color: var(--bg-primary); 
            color: var(--text-primary);
            font-family: var(--font-sans); 
            line-height: 1.6;
            -webkit-font-smoothing: antialiased; 
            -moz-osx-font-smoothing: grayscale;
        }

        /* Remove default outlines and use custom focus states */
        *:focus { outline: none !important; }
        
        button, input, textarea, select { 
            font-family: inherit; 
            color: inherit; 
            border: none;
            background: transparent;
        }
        
        button { cursor: pointer; user-select: none; }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; height: auto; display: block; }
        svg { flex-shrink: 0; }

        /* Highly Customized Scrollbars */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 10px; transition: background var(--ease-smooth); }
        ::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.25); }

        /* ---------------------------------------------------------------------------------------
           C. AMBIENT BACKGROUND SYSTEM (प्रीमियम बैकग्राउंड इफ़ेक्ट्स)
           --------------------------------------------------------------------------------------- */
        .ambient-environment {
            position: fixed; inset: 0; z-index: var(--z-ambient); overflow: hidden; pointer-events: none;
            background: linear-gradient(135deg, var(--brand-saffron-light) 0%, var(--bg-primary) 50%, var(--brand-green-light) 100%);
        }
        .ambient-orb {
            position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.35;
            animation: orbFloat 40s ease-in-out infinite alternate; will-change: transform;
        }
        .orb-top-left { 
            width: 650px; height: 650px; 
            background: radial-gradient(circle, rgba(255,153,51,0.2) 0%, transparent 70%); 
            top: -200px; left: -150px; 
        }
        .orb-bottom-right { 
            width: 550px; height: 550px; 
            background: radial-gradient(circle, rgba(19,136,8,0.15) 0%, transparent 70%); 
            bottom: -150px; right: -100px; animation-delay: -20s; 
        }
        @keyframes orbFloat { 
            0% { transform: translate(0, 0) scale(1); } 
            33% { transform: translate(50px, 70px) scale(1.05); } 
            66% { transform: translate(-30px, 40px) scale(0.95); } 
            100% { transform: translate(60px, -20px) scale(1.1); } 
        }

        /* ---------------------------------------------------------------------------------------
           D. TOAST NOTIFICATION ENGINE (सुंदर और स्पष्ट सूचनाएं)
           --------------------------------------------------------------------------------------- */
        .toast-wrapper { 
            position: absolute; top: 24px; left: 50%; transform: translateX(-50%); 
            z-index: var(--z-toast); display: flex; flex-direction: column; gap: 12px; 
            pointer-events: none; width: 90%; max-width: 400px; align-items: center;
        }
        .toast-notification {
            background: var(--text-primary); color: var(--text-inverse); padding: 14px 24px;
            border-radius: var(--radius-full); font-size: 14px; font-weight: 600; box-shadow: var(--shadow-xl);
            animation: toastSlideIn var(--ease-spring) forwards, toastFadeOut 0.4s 3.5s forwards;
            display: flex; align-items: center; gap: 10px; width: fit-content; max-width: 100%; word-break: break-word;
            border: 1px solid rgba(255,255,255,0.1);
        }
        .toast-notification svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--brand-saffron); }
        @keyframes toastSlideIn { from { opacity: 0; transform: translateY(-30px) scale(0.9); } to { opacity: 1; transform: translateY(0) scale(1); } }
        @keyframes toastFadeOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(-20px); } }

        /* ---------------------------------------------------------------------------------------
           E. INITIAL WELCOME OVERLAY (स्वागत स्क्रीन)
           --------------------------------------------------------------------------------------- */
        .startup-overlay {
            position: fixed; inset: 0; background: var(--brand-white-glass);
            backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px); z-index: calc(var(--z-toast) + 100);
            display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 24px;
            transition: opacity var(--ease-smooth), visibility var(--ease-smooth);
        }
        .startup-overlay.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
        
        .startup-logo-container { position: relative; margin-bottom: 32px; animation: popIn var(--ease-spring) 0.3s both; }
        .startup-logo-container img { width: 140px; height: 140px; border-radius: var(--radius-xl); object-fit: cover; box-shadow: var(--shadow-xl); border: 4px solid var(--bg-primary); position: relative; z-index: 2; }
        .startup-logo-glow { position: absolute; inset: -20px; background: linear-gradient(135deg, var(--brand-saffron), var(--brand-green)); filter: blur(30px); opacity: 0.4; border-radius: var(--radius-full); z-index: 1; animation: pulseGlow 3s infinite alternate; }
        
        @keyframes pulseGlow { from { opacity: 0.3; transform: scale(0.95); } to { opacity: 0.6; transform: scale(1.05); } }
        @keyframes popIn { from { opacity: 0; transform: scale(0.8); } to { opacity: 1; transform: scale(1); } }
        
        .startup-title { font-family: var(--font-sans); font-size: 2.5rem; font-weight: 900; color: var(--text-primary); letter-spacing: -1px; margin-bottom: 16px; animation: slideUp var(--ease-smooth) 0.4s both; }
        .startup-desc { font-size: 1.1rem; color: var(--text-secondary); line-height: 1.6; max-width: 550px; margin-bottom: 40px; animation: slideUp var(--ease-smooth) 0.5s both; font-weight: 500; }
        
        .btn-startup-launch { padding: 18px 48px; background: var(--text-primary); color: var(--text-inverse); border: none; border-radius: var(--radius-xl); font-size: 1.125rem; font-weight: 700; cursor: pointer; transition: var(--ease-spring); box-shadow: 0 10px 25px rgba(0,0,0,0.15); animation: slideUp var(--ease-smooth) 0.6s both; display: flex; align-items: center; gap: 12px; position: relative; overflow: hidden; }
        .btn-startup-launch::before { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent); transform: skewX(-20deg); transition: 0.5s; }
        .btn-startup-launch:hover { background: #000000; transform: translateY(-4px) scale(1.02); box-shadow: 0 15px 35px rgba(0,0,0,0.25); }
        .btn-startup-launch:hover::before { left: 150%; }
        
        @keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

        /* ---------------------------------------------------------------------------------------
           F. CORE APPLICATION LAYOUT & SIDEBAR
           --------------------------------------------------------------------------------------- */
        .app-root { position: relative; z-index: var(--z-base); display: flex; height: 100dvh; width: 100vw; overflow: hidden; background: var(--bg-glass); backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px); }
        
        /* Sidebar Navigation System */
        .sidebar-container { width: 320px; display: flex; flex-direction: column; background: rgba(248, 249, 250, 0.85); border-right: 1px solid var(--border-light); flex-shrink: 0; z-index: var(--z-sidebar); transition: transform var(--ease-smooth), box-shadow var(--ease-smooth); backdrop-filter: blur(15px); }
        .sidebar-header { padding: 28px 24px; border-bottom: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; }
        
        .brand-identity { display: flex; align-items: center; gap: 14px; text-decoration: none; }
        .brand-identity img { width: 50px; height: 50px; border-radius: var(--radius-md); object-fit: cover; box-shadow: var(--shadow-sm); border: 2px solid var(--bg-primary); transition: transform var(--ease-spring); }
        .brand-identity:hover img { transform: scale(1.08) rotate(-3deg); }
        .brand-typography { display: flex; flex-direction: column; }
        .brand-name { font-family: var(--font-sans); font-weight: 900; font-size: 20px; color: var(--text-primary); letter-spacing: -0.5px; line-height: 1.1; }
        .brand-edition { font-size: 11px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; background: linear-gradient(90deg, var(--brand-saffron), var(--brand-green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-top: 4px; }
        
        .btn-mobile-close { display: none; background: rgba(0,0,0,0.05); border: none; width: 36px; height: 36px; border-radius: 50%; color: var(--text-primary); cursor: pointer; align-items: center; justify-content: center; transition: var(--ease-fast); }
        .btn-mobile-close:hover { background: rgba(239, 68, 68, 0.15); color: var(--text-error); transform: rotate(90deg); }
        
        .sidebar-body { flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 28px; }

        /* Advanced Auth Widget in Sidebar */
        .auth-widget { background: var(--bg-primary); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-sm); transition: var(--ease-smooth); }
        .auth-widget:hover { box-shadow: var(--shadow-md); border-color: var(--border-medium); }
        
        .btn-secure-connect { width: 100%; padding: 14px; background: var(--text-primary); color: var(--text-inverse); border: none; border-radius: var(--radius-md); font-size: 14px; font-weight: 700; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px; transition: var(--ease-fast); }
        .btn-secure-connect:hover { background: #000000; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        
        .user-profile-display { display: none; align-items: center; gap: 14px; }
        .avatar-badge { width: 46px; height: 46px; border-radius: var(--radius-full); background: linear-gradient(135deg, var(--brand-saffron), var(--brand-green)); color: var(--brand-white); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 18px; box-shadow: var(--shadow-sm); border: 2px solid var(--bg-primary); text-shadow: 0 1px 2px rgba(0,0,0,0.3); }
        .user-details { flex: 1; overflow: hidden; }
        .user-email-id { font-size: 14px; font-weight: 700; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .user-clearance-level { font-size: 11px; color: var(--brand-green); font-weight: 600; margin-top: 2px; display: flex; align-items: center; gap: 4px; }
        .user-clearance-level::before { content: ''; display: block; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-green); box-shadow: var(--shadow-glow-green); }
        .btn-system-logout { background: rgba(239, 68, 68, 0.08); color: var(--text-error); border: none; width: 38px; height: 38px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--ease-fast); }
        .btn-system-logout:hover { background: var(--text-error); color: #ffffff; transform: scale(1.05); }

        /* Developer Box with Tiranga Accent */
        .developer-credit-box { background: var(--bg-primary); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; box-shadow: var(--shadow-sm); margin-top: auto; position: relative; overflow: hidden; }
        .developer-credit-box::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--brand-saffron), var(--brand-white), var(--brand-green)); }
        .developer-credit-box img { width: 72px; height: 72px; border-radius: var(--radius-lg); object-fit: cover; margin-bottom: 16px; box-shadow: var(--shadow-md); border: 1px solid var(--border-light); margin-left: auto; margin-right: auto; transition: var(--ease-spring); }
        .developer-credit-box:hover img { transform: scale(1.05); }
        .dev-box-title { font-size: 18px; font-weight: 800; color: var(--text-primary); margin-bottom: 6px; }
        .dev-box-subtitle { font-size: 11px; font-weight: 800; color: var(--text-tertiary); letter-spacing: 1px; text-transform: uppercase; }
        
        /* Dangerous Action Button */
        .btn-erase-memory { width: 100%; padding: 16px; border-radius: var(--radius-md); background: var(--bg-primary); border: 1px solid var(--border-light); color: var(--text-secondary); font-size: 14px; font-weight: 700; cursor: pointer; transition: var(--ease-fast); display: flex; align-items: center; justify-content: center; gap: 10px; }
        .btn-erase-memory:hover { background: #fee2e2; color: var(--text-error); border-color: #fca5a5; }

        /* ---------------------------------------------------------------------------------------
           G. MAIN CHAT AREA & HEADER
           --------------------------------------------------------------------------------------- */
        .main-chat-wrapper { flex: 1; display: flex; flex-direction: column; position: relative; min-width: 320px; transition: width var(--ease-smooth); background: transparent; }
        
        .chat-top-bar { padding: 18px 32px; border-bottom: 1px solid var(--border-light); background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(15px); display: flex; align-items: center; justify-content: space-between; z-index: var(--z-header); }
        .top-bar-left { display: flex; align-items: center; gap: 16px; }
        .btn-hamburger { display: none; background: var(--bg-primary); border: 1px solid var(--border-light); cursor: pointer; color: var(--text-primary); width: 42px; height: 42px; border-radius: var(--radius-sm); align-items: center; justify-content: center; box-shadow: var(--shadow-sm); transition: var(--ease-fast); }
        .btn-hamburger:hover { background: var(--bg-secondary); }
        
        .system-status-pill { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; color: var(--text-primary); padding: 8px 18px; background: var(--bg-secondary); border-radius: var(--radius-full); border: 1px solid var(--border-light); }
        .pulse-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--brand-green); box-shadow: 0 0 0 3px rgba(19, 136, 8, 0.2); animation: statusPulse 2s infinite; }
        @keyframes statusPulse { 0% { box-shadow: 0 0 0 0 rgba(19,136,8,0.4); } 70% { box-shadow: 0 0 0 6px rgba(19,136,8,0); } 100% { box-shadow: 0 0 0 0 rgba(19,136,8,0); } }

        /* DYNAMIC LIVE MODE ACTIVATOR */
        .btn-activate-live { background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%); color: white; border: none; padding: 10px 22px; border-radius: var(--radius-full); font-size: 14px; font-weight: 800; display: flex; align-items: center; gap: 8px; cursor: pointer; box-shadow: 0 4px 15px rgba(239, 68, 68, 0.35); transition: var(--ease-spring); letter-spacing: 0.5px; }
        .btn-activate-live:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 8px 25px rgba(239, 68, 68, 0.45); }
        .btn-activate-live svg { width: 18px; height: 18px; animation: liveBlink 1.5s infinite; }
        @keyframes liveBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

        /* Chat Scrollable Area */
        .chat-scroll-area { flex: 1; overflow-y: auto; padding: 40px 10%; display: flex; flex-direction: column; gap: 36px; scroll-behavior: smooth; position: relative; }
        
        /* Internal Welcome Hero Box */
        .chat-hero-section { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 60px 20px; margin: auto; animation: slideUpFade 0.7s var(--ease-spring) both; max-width: 750px; }
        .hero-avatar-wrapper { position: relative; margin-bottom: 36px; }
        .hero-avatar-wrapper img { width: 100px; height: 100px; border-radius: var(--radius-xl); object-fit: cover; box-shadow: var(--shadow-xl); border: 3px solid var(--bg-primary); position: relative; z-index: 2; }
        .hero-avatar-glow { position: absolute; inset: -12px; background: linear-gradient(135deg, var(--brand-saffron), var(--brand-green)); filter: blur(25px); opacity: 0.35; border-radius: 40px; z-index: 1; animation: rotateGlow 10s linear infinite;}
        @keyframes rotateGlow { 100% { transform: rotate(360deg); } }
        
        .hero-greeting { font-size: 42px; font-weight: 900; letter-spacing: -1.5px; margin-bottom: 18px; color: var(--text-primary); }
        .hero-description { font-size: 17px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 40px; font-weight: 500; }
        
        /* RESTORED: GUEST BADGE LIMIT DISPLAY */
        .guest-warning-badge { font-size: 13px; font-weight: 700; color: var(--text-error); background: #fee2e2; padding: 10px 20px; border-radius: var(--radius-full); margin-bottom: 32px; display: none; align-items: center; gap: 8px; border: 1px solid #fca5a5; box-shadow: var(--shadow-sm); }
        .guest-warning-badge svg { width: 18px; height: 18px; }

        .prompt-suggestions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; width: 100%; }
        .prompt-card { background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(15px); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 24px; cursor: pointer; text-align: left; transition: var(--ease-smooth); box-shadow: var(--shadow-sm); position: relative; overflow: hidden; }
        .prompt-card::after { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--brand-saffron); opacity: 0; transition: var(--ease-fast); }
        .prompt-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--brand-saffron); background: rgba(255, 255, 255, 0.95); }
        .prompt-card:hover::after { opacity: 1; }
        .prompt-icon { font-size: 28px; margin-bottom: 14px; display: inline-block; background: var(--bg-tertiary); padding: 10px; border-radius: var(--radius-md); }
        .prompt-title { font-size: 15px; font-weight: 800; color: var(--text-primary); margin-bottom: 8px; }
        .prompt-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

        /* ---------------------------------------------------------------------------------------
           H. CHAT MESSAGE BUBBLES & PREVIEWS
           --------------------------------------------------------------------------------------- */
        .chat-message-row { display: flex; gap: 20px; max-width: 88%; animation: messagePopIn 0.5s var(--ease-spring) both; }
        @keyframes messagePopIn { from { opacity: 0; transform: translateY(25px) scale(0.97); } to { opacity: 1; transform: none; } }
        .chat-message-row.user-msg { flex-direction: row-reverse; align-self: flex-end; }
        .chat-message-row.bot-msg { align-self: flex-start; }
        
        .msg-avatar { width: 42px; height: 42px; border-radius: var(--radius-md); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; box-shadow: var(--shadow-sm); }
        .user-msg .msg-avatar { background: var(--text-primary); color: var(--brand-white); }
        .bot-msg .msg-avatar { background: var(--bg-primary); border: 1px solid var(--border-light); padding: 3px; }
        .bot-msg .msg-avatar img { width: 100%; height: 100%; border-radius: 8px; object-fit: cover; }
        
        .msg-content-column { display: flex; flex-direction: column; gap: 8px; max-width: 100%; min-width: 0; }
        .user-msg .msg-content-column { align-items: flex-end; }
        
        .file-badge { font-size: 11px; font-weight: 700; color: var(--brand-saffron-dark); background: var(--brand-saffron-light); padding: 4px 12px; border-radius: var(--radius-full); margin-bottom: 4px; display: inline-flex; align-items: center; gap: 6px; border: 1px solid rgba(255,153,51,0.2); }
        .file-badge svg { width: 12px; height: 12px; }

        /* In-Bubble File Previews */
        .chat-in-bubble-img { max-width: 320px; max-height: 320px; border-radius: var(--radius-md); object-fit: cover; border: 2px solid rgba(255,255,255,0.2); box-shadow: var(--shadow-md); margin-bottom: 12px; }
        .chat-file-card { display: flex; align-items: center; gap: 14px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); padding: 12px 18px; border-radius: var(--radius-md); margin-bottom: 12px; max-width: 350px; backdrop-filter: blur(10px); }
        .chat-file-card .icon { font-size: 24px; background: rgba(0,0,0,0.1); width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); }
        .chat-file-card .name { font-size: 14px; font-weight: 600; color: var(--brand-white); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

        .chat-bubble { padding: 18px 24px; font-size: 16px; line-height: 1.6; position: relative; word-wrap: break-word; overflow-wrap: anywhere; }
        .user-msg .chat-bubble { background: var(--text-primary); color: var(--text-inverse); border-radius: 24px 24px 6px 24px; box-shadow: var(--shadow-md); }
        .bot-msg .chat-bubble { background: var(--bg-primary); color: var(--text-primary); border: 1px solid var(--border-light); border-radius: 6px 24px 24px 24px; box-shadow: var(--shadow-sm); width: 100%; }

        /* Bot Action Buttons (Copy & TTS) */
        .bot-actions-row { display: flex; gap: 10px; margin-top: 8px; padding-left: 14px; opacity: 0; transition: opacity var(--ease-smooth); flex-wrap: wrap; }
        .bot-msg:hover .bot-actions-row { opacity: 1; }
        
        .btn-bot-action { background: var(--bg-secondary); border: 1px solid var(--border-light); color: var(--text-secondary); font-size: 13px; font-weight: 700; cursor: pointer; display: flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: var(--radius-full); transition: var(--ease-fast); }
        .btn-bot-action:hover { background: var(--bg-primary); color: var(--text-primary); transform: translateY(-2px); box-shadow: var(--shadow-sm); border-color: var(--border-medium); }
        .btn-bot-action svg { width: 16px; height: 16px; }
        
        .btn-bot-action.action-tts { color: var(--brand-green-dark); border-color: rgba(19, 136, 8, 0.25); background: var(--brand-green-light); }
        .btn-bot-action.action-tts:hover { background: rgba(19, 136, 8, 0.2); }

        /* Markdown Rendering inside Bubbles */
        .chat-bubble p { margin-bottom: 16px; }
        .chat-bubble p:last-child { margin-bottom: 0; }
        .chat-bubble strong { font-weight: 800; color: inherit; }
        .chat-bubble code { font-family: var(--font-mono); background: rgba(0,0,0,0.06); padding: 4px 8px; border-radius: 6px; font-size: 0.85em; color: #d946ef; font-weight: 600; border: 1px solid rgba(0,0,0,0.05); }
        .user-msg .chat-bubble code { background: rgba(255,255,255,0.2); color: var(--brand-white); border-color: rgba(255,255,255,0.1); }
        .chat-bubble img { max-width: 100%; border-radius: var(--radius-md); margin: 16px 0; box-shadow: var(--shadow-lg); border: 1px solid var(--border-light); display: block; }
        .chat-bubble pre { background: #282c34; color: #abb2bf; padding: 20px; border-radius: var(--radius-md); overflow-x: auto; margin: 20px 0; font-family: var(--font-mono); font-size: 14px; line-height: 1.6; border: 1px solid #181a1f; box-shadow: var(--shadow-inner); }
        .chat-bubble pre code { background: transparent; color: inherit; padding: 0; font-weight: 400; border: none; }
        
        /* Streaming Loading UI Component */
        .streaming-code-container { background: #1e1e2e; border-radius: var(--radius-md); border: 1px solid #313244; overflow: hidden; margin: 20px 0; box-shadow: var(--shadow-lg); }
        .streaming-code-header { background: #11111b; padding: 14px 20px; font-size: 12px; font-weight: 700; color: #a6adc8; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid #313244; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 1.5px; }
        .loading-ring { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.1); border-top-color: var(--brand-saffron); border-radius: 50%; animation: ringSpin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite; }
        @keyframes ringSpin { to { transform: rotate(360deg); } }
        .streaming-code-container pre { margin: 0; background: transparent; border: none; border-radius: 0; box-shadow: none; }

        /* Workspace Execute Card */
        .workspace-execute-card { background: var(--bg-secondary); border: 1px solid var(--border-light); border-radius: var(--radius-md); padding: 20px; margin: 20px 0; display: flex; align-items: center; justify-content: space-between; box-shadow: var(--shadow-sm); transition: var(--ease-smooth); }
        .workspace-execute-card:hover { border-color: var(--brand-saffron-light); box-shadow: var(--shadow-md); background: var(--bg-primary); }
        .ws-card-left { display: flex; align-items: center; gap: 16px; }
        .ws-card-icon-box { width: 54px; height: 54px; border-radius: var(--radius-sm); background: var(--bg-primary); display: flex; align-items: center; justify-content: center; font-size: 26px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); color: var(--text-primary); }
        .ws-card-icon-box svg { color: var(--brand-saffron); }
        .ws-card-details h4 { font-size: 16px; font-weight: 800; margin-bottom: 4px; color: var(--text-primary); }
        .ws-card-details p { font-size: 12px; color: var(--text-secondary); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
        .btn-launch-workspace { padding: 12px 24px; background: var(--text-primary); color: var(--brand-white); border: none; border-radius: var(--radius-sm); font-size: 14px; font-weight: 700; cursor: pointer; transition: var(--ease-spring); box-shadow: var(--shadow-sm); }
        .btn-launch-workspace:hover { transform: scale(1.05); background: var(--brand-saffron); box-shadow: 0 6px 15px rgba(255,153,51,0.35); }

        /* ---------------------------------------------------------------------------------------
           I. BOTTOM INPUT DOCK & TOOLS
           --------------------------------------------------------------------------------------- */
        .input-dock { flex-shrink: 0; padding: 0 40px 32px; background: transparent; position: relative; z-index: var(--z-dock); }
        .input-master-container { display: flex; flex-direction: column; background: var(--bg-glass); backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px); border: 1px solid var(--border-light); border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); transition: var(--ease-smooth); }
        .input-master-container:focus-within { border-color: var(--brand-saffron); box-shadow: 0 20px 40px -5px rgba(255,153,51,0.15), 0 0 0 4px var(--brand-saffron-light); }

        /* Upload Preview Header (Non-Technical Vocabulary) */
        .upload-preview-bar { display: none; padding: 20px 28px 0; align-items: center; gap: 16px; }
        .upload-preview-bar.visible { display: flex; animation: fadeIn 0.3s ease; }
        .upload-thumb { width: 52px; height: 52px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--border-light); display: flex; justify-content: center; align-items: center; background: var(--bg-tertiary); font-size: 24px; box-shadow: var(--shadow-sm); }
        .upload-meta { flex: 1; }
        .upload-filename { font-size: 14px; font-weight: 700; color: var(--text-primary); max-width: 250px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .upload-status-text { font-size: 12px; color: var(--brand-green); font-weight: 600; margin-top: 2px; display: flex; align-items: center; gap: 6px; }
        .upload-status-text svg { width: 14px; height: 14px; }
        
        .btn-discard-upload { background: rgba(239, 68, 68, 0.1); border: none; width: 32px; height: 32px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--text-error); transition: var(--ease-fast); }
        .btn-discard-upload:hover { background: var(--text-error); color: #fff; }

        .input-tools-row { display: flex; align-items: flex-end; gap: 12px; padding: 14px 20px 14px 24px; }
        
        .main-textarea { flex: 1; border: none; outline: none; background: transparent; font-family: var(--font-sans); font-size: 16px; color: var(--text-primary); line-height: 1.5; resize: none; max-height: 200px; min-height: 24px; padding: 12px 0; margin: 0 8px; font-weight: 500; }
        .main-textarea::placeholder { color: var(--text-tertiary); font-weight: 400; }

        /* Attachment Menu Dropdown */
        .attachment-module { position: relative; }
        .btn-tool-icon { width: 44px; height: 44px; border-radius: var(--radius-md); background: transparent; border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text-secondary); transition: var(--ease-fast); }
        .btn-tool-icon:hover { background: var(--bg-tertiary); color: var(--text-primary); }
        .btn-tool-icon svg { width: 24px; height: 24px; stroke-width: 2; }
        
        .attachment-dropdown { position: absolute; bottom: 60px; left: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 10px; box-shadow: var(--shadow-xl); display: none; flex-direction: column; gap: 6px; z-index: var(--z-dropdown); min-width: 240px; transform: translateY(15px) scale(0.95); opacity: 0; transition: all var(--ease-fast); transform-origin: bottom left; }
        .attachment-dropdown.visible { display: flex; transform: translateY(0) scale(1); opacity: 1; }
        .dropdown-item { display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-radius: var(--radius-sm); cursor: pointer; font-size: 15px; font-weight: 600; color: var(--text-primary); transition: var(--ease-fast); }
        .dropdown-item:hover { background: var(--bg-tertiary); color: var(--brand-saffron-dark); }
        .dropdown-item svg { width: 20px; height: 20px; color: var(--text-secondary); }
        .dropdown-item:hover svg { color: var(--brand-saffron); }
        .stealth-input { display: none; }

        /* Smart Language Toggle & Mic */
        .language-toggle-chip { font-size: 13px; font-weight: 800; color: var(--text-secondary); border: 2px solid var(--border-light); background: var(--bg-primary); border-radius: 10px; padding: 6px 12px; cursor: pointer; transition: var(--ease-smooth); display: flex; align-items: center; gap: 6px; user-select: none; }
        .language-toggle-chip:hover { background: var(--brand-saffron-light); color: var(--brand-saffron-dark); border-color: var(--brand-saffron); }
        .language-toggle-chip.hindi-active { background: var(--brand-green-light); color: var(--brand-green-dark); border-color: var(--brand-green); }
        .language-toggle-chip svg { width: 16px; height: 16px; }

        .btn-mic-tool.active-listening { color: #ffffff; background: var(--text-error); animation: recordPulse 1.5s infinite; border-radius: var(--radius-full); }
        @keyframes recordPulse { 0% { box-shadow: 0 0 0 0 rgba(239,68,68,0.5); } 70% { box-shadow: 0 0 0 12px rgba(239,68,68,0); } 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); } }

        /* Master Send Button */
        .btn-master-send { width: 48px; height: 48px; border-radius: 16px; border: none; background: linear-gradient(135deg, var(--brand-saffron) 0%, var(--brand-green) 100%); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--ease-spring); box-shadow: 0 6px 20px rgba(19, 136, 8, 0.25); }
        .btn-master-send svg { width: 20px; height: 20px; fill: white; transition: transform 0.2s; }
        .btn-master-send:hover { transform: translateY(-3px); box-shadow: 0 10px 25px rgba(255, 153, 51, 0.4); }
        .btn-master-send:hover svg { transform: translate(2px, -2px); }
        .btn-master-send:disabled { opacity: 0.4; cursor: not-allowed; filter: grayscale(100%); transform: none; box-shadow: none; }

        .bottom-branding-text { text-align: center; font-size: 12px; color: var(--text-tertiary); margin-top: 16px; font-weight: 600; letter-spacing: 0.5px; }

        /* ---------------------------------------------------------------------------------------
           J. WORKSPACE PRO (VS-CODE LIKE EDITOR PANEL)
           --------------------------------------------------------------------------------------- */
        .code-workspace-panel { width: 0; background: #1e1e1e; border-left: 1px solid var(--border-light); display: flex; flex-direction: column; transition: width var(--ease-smooth); overflow: hidden; box-shadow: -15px 0 40px rgba(0,0,0,0.15); z-index: var(--z-workspace); }
        .code-workspace-panel.expanded { width: 55%; }
        
        .workspace-header-bar { padding: 16px 24px; border-bottom: 1px solid #333; background: #252526; display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; }
        .workspace-title-group { font-size: 14px; font-weight: 700; display: flex; align-items: center; gap: 10px; color: #abb2bf; font-family: var(--font-mono); letter-spacing: 0.5px;}
        .workspace-tools { display: flex; gap: 10px; }
        
        .btn-workspace-tool { padding: 8px 16px; border-radius: var(--radius-sm); background: #3e4451; border: 1px solid #181a1f; cursor: pointer; display: flex; align-items: center; gap: 8px; color: #fff; transition: var(--ease-fast); font-size: 13px; font-weight: 600; }
        .btn-workspace-tool:hover { background: #4b5263; }
        
        .btn-workspace-tool.close { padding: 8px; background: transparent; border-color: transparent; color: #abb2bf; }
        .btn-workspace-tool.close:hover { color: #e06c75; background: rgba(224, 108, 117, 0.1); }
        
        .workspace-editor-surface { flex: 1; overflow-y: auto; background: #282c34; padding: 24px; position: relative; }
        .workspace-editor-surface pre { margin: 0; padding: 0; background: transparent; font-family: var(--font-mono); font-size: 15px; line-height: 1.6; overflow-x: auto; color: #abb2bf; border: none; box-shadow: none;}

        /* ---------------------------------------------------------------------------------------
           K. LIVE MODE FULLSCREEN OVERLAY
           --------------------------------------------------------------------------------------- */
        .live-mode-viewport { position: fixed; inset: 0; background: rgba(255, 255, 255, 0.98); z-index: var(--z-live); display: flex; flex-direction: column; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity var(--ease-smooth); }
        .live-mode-viewport.active { opacity: 1; pointer-events: auto; }
        .btn-close-live { position: absolute; top: 40px; right: 40px; background: rgba(0,0,0,0.04); border: none; width: 56px; height: 56px; border-radius: 50%; font-size: 24px; cursor: pointer; transition: var(--ease-spring); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); }
        .btn-close-live:hover { background: rgba(239, 68, 68, 0.15); color: var(--text-error); transform: rotate(90deg); }
        
        .pulsing-orb-wrapper { position: relative; width: 250px; height: 250px; display: flex; align-items: center; justify-content: center; margin-bottom: 50px; }
        .energy-core { width: 120px; height: 120px; border-radius: 50%; background: linear-gradient(135deg, var(--brand-saffron), var(--brand-green)); box-shadow: 0 0 50px rgba(19, 136, 8, 0.5); position: relative; z-index: 2; transition: transform 0.15s ease-out; }
        .energy-core.speaking { animation: coreSpeak 0.5s infinite alternate; }
        @keyframes coreSpeak { 0% { transform: scale(1); box-shadow: 0 0 30px rgba(19,136,8,0.4); } 100% { transform: scale(1.1); box-shadow: 0 0 60px rgba(255,153,51,0.6); } }
        
        .energy-ring { position: absolute; inset: 0; border: 3px solid var(--brand-saffron); border-radius: 50%; opacity: 0; animation: energyRipple 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite; }
        .energy-ring:nth-child(2) { animation-delay: 0.8s; border-color: var(--brand-green); }
        .energy-ring:nth-child(3) { animation-delay: 1.6s; border-color: var(--text-primary); }
        @keyframes energyRipple { 0% { transform: scale(0.4); opacity: 1; border-width: 6px; } 100% { transform: scale(1.6); opacity: 0; border-width: 1px; } }
        
        .live-feedback-status { font-size: 28px; font-weight: 900; color: var(--text-primary); margin-bottom: 16px; font-family: var(--font-sans); letter-spacing: -0.5px; }
        .live-feedback-text { font-size: 18px; color: var(--text-secondary); max-width: 700px; text-align: center; line-height: 1.6; min-height: 60px; font-weight: 500; padding: 0 20px; }
        
        .live-control-deck { display: flex; gap: 24px; margin-top: 50px; }
        .btn-live-deck { width: 80px; height: 80px; border-radius: 50%; border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: var(--shadow-lg); transition: var(--ease-spring); }
        .btn-live-deck.mic-control { background: var(--bg-primary); border: 3px solid var(--border-light); color: var(--text-primary); }
        .btn-live-deck.mic-control:hover { transform: translateY(-6px); border-color: var(--brand-saffron); color: var(--brand-saffron); box-shadow: var(--shadow-xl); }
        .btn-live-deck.mic-control.is-recording { background: var(--text-error); color: white; border-color: var(--text-error); animation: pulseMicLive 1.2s infinite; }
        @keyframes pulseMicLive { 0% { box-shadow: 0 0 0 0 rgba(239,68,68,0.6); } 70% { box-shadow: 0 0 0 20px rgba(239,68,68,0); } 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0); } }

        /* Scroll Trigger Button */
        .btn-scroll-trigger { position: absolute; bottom: 150px; left: 50%; width: 48px; height: 48px; border-radius: 50%; background: var(--bg-glass); backdrop-filter: blur(15px); border: 1px solid var(--border-light); box-shadow: var(--shadow-lg); display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text-secondary); opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(20px); transition: var(--ease-smooth); z-index: 20; }
        .btn-scroll-trigger.visible { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }
        .btn-scroll-trigger:hover { background: var(--text-primary); color: var(--text-inverse); transform: translateX(-50%) translateY(-5px); box-shadow: var(--shadow-xl); }

        /* ---------------------------------------------------------------------------------------
           L. AUTHENTICATION SECURE GATEWAY (MODAL)
           --------------------------------------------------------------------------------------- */
        .secure-modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(10px); z-index: var(--z-modal); display: none; justify-content: center; align-items: center; animation: fadeIn 0.3s ease; }
        .secure-modal-surface { background: var(--bg-primary); padding: 44px; border-radius: var(--radius-xl); width: 90%; max-width: 460px; box-shadow: var(--shadow-xl); position: relative; border: 1px solid rgba(255,255,255,0.4); }
        .btn-modal-dismiss { position: absolute; top: 24px; right: 24px; background: var(--bg-secondary); border: none; width: 36px; height: 36px; border-radius: 50%; font-size: 18px; color: var(--text-secondary); cursor: pointer; transition: 0.2s; display: flex; align-items: center; justify-content: center; }
        .btn-modal-dismiss:hover { background: #fee2e2; color: var(--text-error); }
        .modal-brand-header { text-align: center; margin-bottom: 36px; font-family: var(--font-sans); font-size: 28px; font-weight: 900; color: var(--text-primary); letter-spacing: -0.5px; }
        
        .auth-tab-switch { display: flex; background: var(--bg-secondary); padding: 6px; border-radius: var(--radius-md); margin-bottom: 28px; }
        .auth-tab-item { flex: 1; padding: 14px; text-align: center; border-radius: var(--radius-sm); font-size: 15px; font-weight: 800; color: var(--text-secondary); cursor: pointer; transition: var(--ease-fast); }
        .auth-tab-item.active { background: var(--bg-primary); color: var(--text-primary); box-shadow: var(--shadow-sm); }
        
        .auth-form-view { display: none; flex-direction: column; animation: slideIn 0.3s ease; }
        .auth-form-view.active { display: flex; }
        
        .auth-input-element { width: 100%; padding: 18px; border: 2px solid var(--border-light); border-radius: var(--radius-md); font-size: 16px; outline: none; background: var(--bg-secondary); transition: var(--ease-fast); font-family: var(--font-sans); margin-bottom: 20px; font-weight: 500; }
        .auth-input-element:focus { border-color: var(--brand-saffron); background: var(--bg-primary); box-shadow: 0 0 0 4px var(--brand-saffron-light); }
        
        .btn-auth-execute { width: 100%; padding: 18px; background: var(--text-primary); color: var(--brand-white); border: none; border-radius: var(--radius-md); font-size: 16px; font-weight: 800; cursor: pointer; transition: var(--ease-fast); margin-top: 10px; }
        .btn-auth-execute:hover { background: #000000; transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-auth-return { width: 100%; padding: 14px; background: transparent; color: var(--text-tertiary); border: none; font-size: 15px; font-weight: 700; cursor: pointer; margin-top: 10px; transition: 0.2s; }
        .btn-auth-return:hover { color: var(--text-primary); }

        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
        @keyframes slideIn { from { opacity: 0; transform: translateX(25px); } to { opacity: 1; transform: none; } }
        
        /* Cursor & Loading UI */
        .typing-cursor { display: inline-block; width: 10px; height: 18px; background: var(--brand-saffron); margin-left: 4px; animation: cursorBlink 1s step-end infinite; vertical-align: middle; }
        @keyframes cursorBlink { 50% { opacity: 0; } }
        
        .loading-dots-container { display: flex; align-items: center; gap: 6px; padding: 6px; }
        .loading-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-tertiary); opacity: 0.4; animation: dotBounce 1.4s infinite ease-in-out both; }
        .loading-dot:nth-child(1) { animation-delay: -0.32s; } .loading-dot:nth-child(2) { animation-delay: -0.16s; }
        @keyframes dotBounce { 0%, 80%, 100% { transform: scale(0); } 40% { transform: scale(1); } }

        /* ---------------------------------------------------------------------------------------
           M. RESPONSIVE DESIGN (MOBILE & TABLET ADAPTATIONS)
           --------------------------------------------------------------------------------------- */
        @media (max-width: 1024px) {
            .code-workspace-panel.expanded { width: 100%; position: absolute; top: 0; left: 0; height: 100%; z-index: 2000; }
        }
        
        @media (max-width: 900px) {
            .sidebar-container { position: absolute; left: -320px; z-index: 1000; height: 100%; box-shadow: var(--shadow-float); }
            .sidebar-container.active { left: 0; }
            .btn-hamburger { display: flex; }
            .btn-mobile-close { display: flex; }
            
            .chat-scroll-area { padding: 24px 15px; }
            .input-dock { padding: 10px 15px 20px; }
            
            .chat-message-row { max-width: 98%; }
            .btn-scroll-trigger { bottom: 130px; }
            
            .hero-greeting { font-size: 32px; }
            .prompt-suggestions-grid { grid-template-columns: 1fr; }
            
            .input-tools-row { flex-wrap: wrap; }
            .main-textarea { min-width: 100%; order: -1; margin-bottom: 10px; }
        }
    </style>
</head>
<body>

    <!-- =========================================================================================
         DOM STRUCTURE: NOTIFICATIONS
         ========================================================================================= -->
    <div id="toast-container" class="toast-wrapper"></div>

    <!-- =========================================================================================
         DOM STRUCTURE: STARTUP OVERLAY
         ========================================================================================= -->
    <div class="startup-overlay" id="welcomeOverlay">
        <div class="startup-logo-container">
            <div class="startup-logo-glow"></div>
            <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Core Identity">
        </div>
        <h1 class="startup-title">Welcome to Arjun 2.O</h1>
        <p class="startup-desc">Professional Enterprise Edition. Experience secure workspace logic generation, high-fidelity visual rendering, and zero-latency live conversational mode.</p>
        <button class="btn-startup-launch" id="btnLaunchSystem">
            Initialize System
            <svg viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="currentColor" stroke-width="2.5"><line x1="5" y1="12" x2="19" y2="12"></line><polyline points="12 5 19 12 12 19"></polyline></svg>
        </button>
    </div>

    <!-- =========================================================================================
         DOM STRUCTURE: LIVE MODE FULLSCREEN OVERLAY
         ========================================================================================= -->
    <div class="live-mode-viewport" id="liveOverlay">
        <button class="btn-close-live" id="btnExitLiveMode" title="Exit Live Mode">
            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
        </button>
        
        <div class="pulsing-orb-wrapper">
            <div class="energy-ring"></div>
            <div class="energy-ring"></div>
            <div class="energy-ring"></div>
            <div class="energy-core" id="liveOrb"></div>
        </div>
        
        <div class="live-feedback-status" id="liveStatusText">Initializing Audio Stream...</div>
        <div class="live-feedback-text" id="liveTranscriptText">Speak directly to Arjun. Natural language processing active.</div>
        
        <div class="live-control-deck">
            <button class="btn-live-deck mic-control" id="liveMicBtn">
                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2a3 3 0 0 0-3 3v7a3 3 0 0 0 6 0V5a3 3 0 0 0-3-3Z"></path><path d="M19 10v2a7 7 0 0 1-14 0v-2"></path><line x1="12" x2="12" y1="19" y2="22"></line></svg>
            </button>
        </div>
    </div>

    <!-- =========================================================================================
         DOM STRUCTURE: AMBIENT BACKGROUND
         ========================================================================================= -->
    <div class="ambient-environment">
        <div class="ambient-orb orb-top-left"></div>
        <div class="ambient-orb orb-bottom-right"></div>
    </div>

    <!-- =========================================================================================
         DOM STRUCTURE: MASTER APPLICATION CONTAINER
         ========================================================================================= -->
    <div class="app-root">
        
        <!-- A. NAVIGATION SIDEBAR -->
        <aside class="sidebar-container" id="sidebar">
            <div class="sidebar-header">
                <a href="#" class="brand-identity">
                    <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Logo">
                    <div class="brand-typography">
                        <span class="brand-name">ARJUN 2.O</span>
                        <span class="brand-edition">Professional</span>
                    </div>
                </a>
                <button class="btn-mobile-close" id="btnSidebarClose">
                    <svg viewBox="0 0 24 24" width="20" height="20" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
                </button>
            </div>
            
            <div class="sidebar-body">
                <!-- Authentication Widget -->
                <div class="auth-widget">
                    <button id="loginPromptBtn" class="btn-secure-connect">
                        <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.5"><rect x="3" y="11" width="18" height="11" rx="2" ry="2"></rect><path d="M7 11V7a5 5 0 0 1 10 0v4"></path></svg>
                        Secure Login
                    </button>
                    
                    <div id="userProfile" class="user-profile-display">
                        <div class="avatar-badge" id="uAvatar">U</div>
                        <div class="user-details">
                            <div class="user-email-id" id="uEmail">user@network.com</div>
                            <div class="user-clearance-level">Verified Clearance</div>
                        </div>
                        <button class="btn-system-logout" id="btnLogout" title="Terminate Session">
                            <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.5"><path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4"></path><polyline points="16 17 21 12 16 7"></polyline><line x1="21" y1="12" x2="9" y2="12"></line></svg>
                        </button>
                    </div>
                </div>

                <!-- Branding Box -->
                <div class="developer-credit-box">
                    <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Core Image">
                    <h3 class="dev-box-title">Arjun Intelligence</h3>
                    <p class="dev-box-subtitle">ENGINEERED BY ABHAY KUMAR</p>
                </div>
                
                <!-- Wipe Memory Button -->
                <button class="btn-erase-memory" id="btnClearMemory">
                    <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="3 6 5 6 21 6"></polyline><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path></svg>
                    Wipe Memory Context
                </button>
            </div>
        </aside>

        <!-- B. MAIN CHAT ENGINE INTERFACE -->
        <main class="main-chat-wrapper">
            
            <!-- Top Status Bar -->
            <header class="chat-top-bar">
                <div class="top-bar-left">
                    <button class="btn-hamburger" id="btnSidebarOpen">
                        <svg viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" stroke-width="2.5" fill="none"><line x1="3" y1="12" x2="21" y2="12"></line><line x1="3" y1="6" x2="21" y2="6"></line><line x1="3" y1="18" x2="21" y2="18"></line></svg>
                    </button>
                    <div class="system-status-pill">
                        <div class="pulse-dot"></div>
                        System Online
                    </div>
                </div>
                
                <!-- LIVE MODE ACTIVATOR -->
                <button class="btn-activate-live" id="btnStartLiveMode">
                    <svg viewBox="0 0 24 24" stroke="currentColor" stroke-width="2.5" fill="none"><circle cx="12" cy="12" r="10"></circle><circle cx="12" cy="12" r="4" fill="currentColor"></circle></svg>
                    LIVE MODE
                </button>
            </header>

            <!-- Scrollable Conversation Area -->
            <div class="chat-scroll-area" id="msgs">
                
                <!-- Internal Welcome / Guest Warning State -->
                <div class="chat-hero-section" id="welcomeState">
                    <div class="hero-avatar-wrapper">
                        <div class="hero-avatar-glow"></div>
                        <img src="https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png" alt="Arjun Logo Large">
                    </div>
                    <h2 class="hero-greeting">How can I assist you today?</h2>
                    <p class="hero-description">Experience next-generation reasoning, seamless multi-file analysis, and secure workspace code generation engineered by Abhay Kumar.</p>
                    
                    <!-- GUEST BADGE LIMIT DISPLAY -->
                    <div id="guestBadge" class="guest-warning-badge">
                        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><path d="M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z"></path><line x1="12" y1="9" x2="12" y2="13"></line><line x1="12" y1="17" x2="12.01" y2="17"></line></svg>
                        Guest Mode Active: <span id="guestCountDisplay">0</span>/3 Queries Used. Please login.
                    </div>

                    <div class="prompt-suggestions-grid">
                        <div class="prompt-card" id="suggCodeBtn">
                            <span class="prompt-icon">💻</span>
                            <div class="prompt-title">Generate Production Code</div>
                            <div class="prompt-desc">Create secure, workspace-ready architecture instantly.</div>
                        </div>
                        <div class="prompt-card" id="suggImgBtn">
                            <span class="prompt-icon">🎨</span>
                            <div class="prompt-title">Render Stunning Visions</div>
                            <div class="prompt-desc">Utilize advanced AI to paint your imagination.</div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Floating Scroll Down Button -->
            <button class="btn-scroll-trigger" id="scrollTriggerBtn">
                <svg viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="6 9 12 15 18 9"></polyline></svg>
            </button>

            <!-- Bottom Input Dock -->
            <div class="input-dock">
                <div class="input-master-container">
                    
                    <!-- File Preview Component -->
                    <div class="upload-preview-bar" id="filePreviewBar">
                        <img class="upload-thumb" id="previewImgThumb" src="" style="display:none;">
                        <div class="upload-thumb" id="previewDocIcon" style="display:none;">📄</div>
                        <div class="upload-meta">
                            <div class="upload-filename" id="previewFileName">document.pdf</div>
                            <div class="upload-status-text">
                                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3"><polyline points="20 6 9 17 4 12"></polyline></svg>
                                File ready to be transmitted
                            </div>
                        </div>
                        <button class="btn-discard-upload" id="btnDiscardFile">
                            <svg viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" stroke-width="2.5"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
                        </button>
                    </div>

                    <!-- Main Tool & Input Row -->
                    <div class="input-tools-row">
                        
                        <!-- Attachment Dropdown Module -->
                        <div class="attachment-module">
                            <button class="btn-tool-icon" id="btnAttachMenuToggle" title="Attach File">
                                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"><path d="M21.44 11.05l-9.19 9.19a6 6 0 0 1-8.49-8.49l9.19-9.19a4 4 0 0 1 5.66 5.66l-9.2 9.19a2 2 0 0 1-2.83-2.83l8.49-8.48"></path></svg>
                            </button>
                            
                            <div class="attachment-dropdown" id="attachDropdownMenu">
                                <div class="dropdown-item" id="opt-image">
                                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect><circle cx="8.5" cy="8.5" r="1.5"></circle><polyline points="21 15 16 10 5 21"></polyline></svg>
                                    High-Res Image
                                </div>
                                <div class="dropdown-item" id="opt-video">
                                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polygon points="23 7 16 12 23 17 23 7"></polygon><rect x="1" y="5" width="15" height="14" rx="2" ry="2"></rect></svg>
                                    Video Media
                                </div>
                                <div class="dropdown-item" id="opt-audio">
                                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M9 18V5l12-2v13"></path><circle cx="6" cy="18" r="3"></circle><circle cx="18" cy="16" r="3"></circle></svg>
                                    Audio Track
                                </div>
                                <div class="dropdown-item" id="opt-document">
                                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"></path><polyline points="14 2 14 8 20 8"></polyline><line x1="16" y1="13" x2="8" y2="13"></line><line x1="16" y1="17" x2="8" y2="17"></line><polyline points="10 9 9 9 8 9"></polyline></svg>
                                    Document / Code
                                </div>
                            </div>
                            
                            <!-- Hidden File Inputs -->
                            <input type="file" id="sys-inp-image" class="stealth-input" accept="image/*">
                            <input type="file" id="sys-inp-video" class="stealth-input" accept="video/*">
                            <input type="file" id="sys-inp-audio" class="stealth-input" accept="audio/*">
                            <input type="file" id="sys-inp-document" class="stealth-input" accept=".pdf,.doc,.docx,.txt,.md,.csv,.json,.py,.js,.html,.css,.cpp,.c,.java">
                        </div>
                        
                        <!-- Smart Language Toggle Button (Bilingual STT logic) -->
                        <button class="language-toggle-chip" id="smartLangToggle" title="Toggle Voice Engine Language">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"></circle><line x1="2" y1="12" x2="22" y2="12"></line><path d="M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z"></path></svg>
                            <span id="langDisplayBadge">EN</span>
                        </button>

                        <!-- Voice Dictation Button -->
                        <button class="btn-tool-icon btn-mic-tool" id="masterVoiceBtn" title="Voice Dictation">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2a3 3 0 0 0-3 3v7a3 3 0 0 0 6 0V5a3 3 0 0 0-3-3Z"></path><path d="M19 10v2a7 7 0 0 1-14 0v-2"></path><line x1="12" x2="12" y1="19" y2="22"></line></svg>
                        </button>

                        <!-- Expanding Text Area -->
                        <textarea class="main-textarea" id="mainChatInput" placeholder="Message Arjun Intelligence..." rows="1"></textarea>
                        
                        <!-- Master Send Button -->
                        <button class="btn-master-send" id="masterSendBtn">
                            <svg viewBox="0 0 24 24"><path d="M2.01 21L23 12 2.01 3 2 10l15 2-15 2z"/></svg>
                        </button>
                    </div>
                </div>
                <div class="bottom-branding-text">Secured by Arjun Core Architecture • Developed by Abhay Kumar</div>
            </div>
        </main>

        <!-- C. WORKSPACE CODE EDITOR PANEL -->
        <aside class="code-workspace-panel" id="workspacePanel">
            <div class="workspace-header-bar">
                <div class="workspace-title-group">
                    <svg viewBox="0 0 24 24" width="20" height="20" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="16 18 22 12 16 6"></polyline><polyline points="8 6 2 12 8 18"></polyline></svg>
                    <span id="wsTitleText">Workspace Logic</span>
                </div>
                <div class="workspace-tools">
                    <button class="btn-workspace-tool" id="btnWsCopy">
                        <svg viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" stroke-width="2.5"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"></rect><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path></svg>
                        Copy Source
                    </button>
                    <button class="btn-workspace-tool close" id="btnWsClose" title="Close Editor">
                        <svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2.5"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
                    </button>
                </div>
            </div>
            <div class="workspace-editor-surface">
                <pre><code id="workspaceCodeBlock" class="hljs"></code></pre>
            </div>
        </aside>
    </div>

    <!-- =========================================================================================
         DOM STRUCTURE: SECURE AUTHENTICATION MODAL
         ========================================================================================= -->
    <div class="secure-modal-backdrop" id="secureAuthModal">
        <div class="secure-modal-surface">
            <button class="btn-modal-dismiss" id="btnAuthClose">
                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
            </button>
            <div class="modal-brand-header">Arjun Network</div>
            
            <div class="auth-tab-switch">
                <div class="auth-tab-item active" id="btn-tab-login">Connect</div>
                <div class="auth-tab-item" id="btn-tab-register">Enroll</div>
            </div>
            
            <!-- Login Flow -->
            <div id="auth-flow-login">
                <div class="auth-form-view active" id="auth-log-phase-1">
                    <input type="email" class="auth-input-element" id="authLogEmail" placeholder="Authorized Email Address">
                    <button class="btn-auth-execute" id="btn-fire-log-otp">Generate Secure Token (OTP)</button>
                </div>
                <div class="auth-form-view" id="auth-log-phase-2">
                    <input type="number" class="auth-input-element" id="authLogOTP" placeholder="Validation Code (OTP)">
                    <button class="btn-auth-execute" id="btn-fire-log-verify">Authenticate Session</button>
                    <button class="btn-auth-return" id="btnLogBack">← Return</button>
                </div>
            </div>
            
            <!-- Register Flow -->
            <div id="auth-flow-register" style="display:none;">
                <div class="auth-form-view active" id="auth-reg-phase-1">
                    <input type="text" class="auth-input-element" id="authRegName" placeholder="Full Legal Name">
                    <input type="email" class="auth-input-element" id="authRegEmail" placeholder="Communication Email">
                    <button class="btn-auth-execute" id="btn-fire-reg-otp">Verify Identity</button>
                </div>
                <div class="auth-form-view" id="auth-reg-phase-2">
                    <input type="number" class="auth-input-element" id="authRegOTP" placeholder="Identity Token (OTP)">
                    <button class="btn-auth-execute" id="btn-fire-reg-verify">Initialize Account</button>
                    <button class="btn-auth-return" id="btnRegBack">← Return</button>
                </div>
            </div>
        </div>
    </div>

    <!-- =========================================================================================
         [3] MASSIVE ENTERPRISE JAVASCRIPT ARCHITECTURE
         ========================================================================================= -->
    <script>
        // =======================================================================================
        // 1. CONFIGURATION & STATE MANAGEMENT
        // =======================================================================================
        const Config = {
            GAS_URL: "https://script.google.com/macros/s/AKfycbzTsXGoVh97JjtFAAG825GF4WUZqf7FDB3Zbxyf0nrLXt_1HjJSSqA829UcdoamRPvg0A/exec",
            LOGO_URL: "https://i.ibb.co/0y2sdbq6/PT-20260523-133251-0000.png",
            PDF_WORKER: 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.worker.min.js',
            API_ENDPOINT: '/api/chat', // Uses relative path to connect to Flask App.py
        };

        // Initialize PDF worker
        pdfjsLib.GlobalWorkerOptions.workerSrc = Config.PDF_WORKER;

        const AppState = {
            currentUser: localStorage.getItem('arjun_user') || null,
            guestCount: parseInt(localStorage.getItem('arjun_guest') || '0', 10),
            history: [],
            pendingAttachment: null,
            isProcessing: false,
            isUserScrolling: false,
            generatedCodeBlocks: [],
            currentWorkspaceId: null,
            isStreamingActive: false,
            isLiveModeEngaged: false,
            gradioClient: null,
            isMicRecording: false,
            // NEW: Add flags to track speech recognition state
            isProcessingSpeech: false,
            lastProcessedText: "",
            // NEW: Track live mode speech processing
            isLiveProcessing: false
        };

        // Initialize Gradio Client Dynamically (Fixes the Module Bug)
        window.initGradioEngine = async function() {
            try {
                const module = await import("https://cdn.jsdelivr.net/npm/@gradio/client/dist/index.min.js");
                AppState.gradioClient = await module.Client.connect("Vedika66/Edge-TTS");
                console.log("Neural TTS Engine connected successfully to Gradio.");
            } catch(err) {
                console.error("Gradio Connection Error:", err);
            }
        };
        window.initGradioEngine();

        // =======================================================================================
        // 2. UTILITY ENGINE (Robust Copy, Notifications, and Text Cleaners)
        // =======================================================================================
        const Utils = {
            showToast: (message) => {
                const container = document.getElementById('toast-container');
                const toast = document.createElement('div');
                toast.className = 'toast-notification';
                toast.innerHTML = `<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="20 6 9 17 4 12"></polyline></svg> ${message}`;
                container.appendChild(toast);
                setTimeout(() => toast.remove(), 3000);
            },
            
            escapeHTML: (str) => {
                return str.replace(/&/g,'&').replace(//g,'>');
            },

            // ✨ CRITICAL FIX: Intelligent Text Cleaner for TTS (Ignores code, links, images)
            cleanTextForVoice: (rawText) => {
                if(!rawText) return "";
                let cleaned = rawText;
                
                // 1. Remove Markdown Code Blocks (``` ... ```)
                cleaned = cleaned.replace(/```[\s\S]*?```/g, '');
                // 2. Remove Inline Code (`...`)
                cleaned = cleaned.replace(/`.*?`/g, '');
                // 3. Remove Markdown Images (![alt](url))
                cleaned = cleaned.replace(/!\[.*?\]\(.*?\)/g, '');
                // 4. Remove Markdown Links ([text](url)) - Extract just the text
                cleaned = cleaned.replace(/\[(.*?)\]\(.*?\)/g, '$1'); 
                // 5. Remove Think Tags (<think>...</think>)
                cleaned = cleaned.replace(/<think>[\s\S]*?<\/think>/gi, '');
                // 6. Remove URLs/HTTP links explicitly
                cleaned = cleaned.replace(/https?:\/\/[^\s]+/g, '');
                // 7. Remove stray Markdown formatting symbols
                cleaned = cleaned.replace(/[*_~#]/g, '');
                
                return cleaned.trim();
            },

            // Robust Fallback Copy Mechanism
            executeFallbackCopy: (text, btnElement) => {
                const textArea = document.createElement("textarea");
                textArea.value = text;
                textArea.style.top = "0"; textArea.style.left = "0"; textArea.style.position = "fixed";
                document.body.appendChild(textArea);
                textArea.focus(); textArea.select();
                
                try {
                    const successful = document.execCommand('copy');
                    if (successful) {
                        const originalHTML = btnElement.innerHTML;
                        btnElement.innerHTML = `<svg viewBox="0 0 24 24" width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="20 6 9 17 4 12"></polyline></svg> Copied Successfully`;
                        setTimeout(() => { btnElement.innerHTML = originalHTML; }, 2500);
                    } else {
                        Utils.showToast("Clipboard access denied by browser.");
                    }
                } catch (err) {
                    Utils.showToast("System error copying text.");
                }
                document.body.removeChild(textArea);
            },

            copyToClipboard: (btnElement, textToCopy) => {
                if (!navigator.clipboard) {
                    Utils.executeFallbackCopy(textToCopy, btnElement);
                    return;
                }
                navigator.clipboard.writeText(textToCopy).then(() => {
                    const originalHTML = btnElement.innerHTML;
                    btnElement.innerHTML = `<svg viewBox="0 0 24 24" width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="20 6 9 17 4 12"></polyline></svg> Copied Successfully`;
                    setTimeout(() => { btnElement.innerHTML = originalHTML; }, 2500);
                }).catch((err) => {
                    console.warn('Modern API failed, utilizing fallback...', err);
                    Utils.executeFallbackCopy(textToCopy, btnElement);
                });
            }
        };

        // =======================================================================================
        // 3. AUTHENTICATION & SYNC MANAGER (Robust Fetch)
        // =======================================================================================
        const AuthManager = {
            initUI: () => {
                const promptBtn = document.getElementById('loginPromptBtn');
                const profileCard = document.getElementById('userProfile');
                const guestBadge = document.getElementById('guestBadge');
                
                if (AppState.currentUser) {
                    promptBtn.style.display = 'none';
                    profileCard.style.display = 'flex';
                    document.getElementById('uEmail').innerText = AppState.currentUser;
                    document.getElementById('uAvatar').innerText = AppState.currentUser.charAt(0).toUpperCase();
                    if(guestBadge) guestBadge.style.display = 'none';
                } else {
                    promptBtn.style.display = 'flex';
                    profileCard.style.display = 'none';
                    if(guestBadge) {
                        guestBadge.style.display = 'inline-flex';
                        document.getElementById('guestCountDisplay').innerText = AppState.guestCount;
                    }
                }
            },

            openModal: () => { document.getElementById('secureAuthModal').style.display = 'flex'; },
            closeModal: () => { document.getElementById('secureAuthModal').style.display = 'none'; },
            
            switchTab: (tabName) => {
                document.querySelectorAll('.auth-tab-item').forEach(el => el.classList.remove('active'));
                document.getElementById(tabName === 'login' ? 'btn-tab-login' : 'btn-tab-register').classList.add('active');
                document.getElementById('auth-flow-login').style.display = tabName === 'login' ? 'block' : 'none';
                document.getElementById('auth-flow-register').style.display = tabName === 'register' ? 'block' : 'none';
            },

            switchPhase: (currentId, nextId) => {
                document.getElementById(currentId).classList.remove('active');
                document.getElementById(nextId).classList.add('active');
            },

            // ✨ FIXED GAS SYNC LOGIC
            process: async (actionType) => {
                const payload = { action: actionType };
                let buttonId = '';

                if (actionType === 'register_send_otp') {
                    payload.name = document.getElementById('authRegName').value.trim();
                    payload.email = document.getElementById('authRegEmail').value.trim();
                    payload.phone = "0000000000"; payload.organization = "Arjun Base";
                    if (!payload.email || !payload.name) return Utils.showToast("Identification details required.");
                    buttonId = 'btn-fire-reg-otp';
                } 
                else if (actionType === 'login_send_otp') {
                    payload.email = document.getElementById('authLogEmail').value.trim();
                    if (!payload.email) return Utils.showToast("Email required for validation.");
                    buttonId = 'btn-fire-log-otp';
                } 
                else if (actionType === 'register_verify' || actionType === 'login_verify') {
                    payload.email = document.getElementById(actionType === 'register_verify' ? 'authRegEmail' : 'authLogEmail').value.trim();
                    payload.otp = document.getElementById(actionType === 'register_verify' ? 'authRegOTP' : 'authLogOTP').value.trim();
                    if (!payload.otp) return Utils.showToast("Security token required.");
                    buttonId = actionType === 'register_verify' ? 'btn-fire-reg-verify' : 'btn-fire-log-verify';
                }

                const triggerBtn = document.getElementById(buttonId);
                const originalText = triggerBtn.innerHTML;
                triggerBtn.disabled = true;
                triggerBtn.innerText = 'Establishing Connection...';

                try {
                    // mode: 'cors' handles redirect issues from GAS effectively
                    const response = await fetch(Config.GAS_URL, { 
                        method: 'POST', 
                        mode: 'cors',
                        headers: { 'Content-Type': 'text/plain;charset=utf-8' },
                        body: JSON.stringify(payload) 
                    });
                    
                    const result = await response.json();
                    
                    if (result.status === 'success') {
                        Utils.showToast(result.message);
                        if (actionType === 'register_send_otp') AuthManager.switchPhase('auth-reg-phase-1', 'auth-reg-phase-2');
                        else if (actionType === 'login_send_otp') AuthManager.switchPhase('auth-log-phase-1', 'auth-log-phase-2');
                        else if (actionType === 'register_verify' || actionType === 'login_verify') {
                            AppState.currentUser = payload.email;
                            localStorage.setItem('arjun_user', AppState.currentUser);
                            AuthManager.closeModal();
                            AuthManager.initUI();
                            ChatEngine.syncHistoryFromCloud();
                        }
                    } else {
                        Utils.showToast(result.message);
                    }
                } catch (error) {
                    console.error("Auth Network Error: ", error);
                    Utils.showToast("Encrypted gateway error. Check network.");
                }
                
                triggerBtn.disabled = false;
                triggerBtn.innerHTML = originalText;
            },

            logout: () => {
                localStorage.removeItem('arjun_user');
                location.reload();
            }
        };

        // =======================================================================================
        // 4. UI & DOM MANAGER
        // =======================================================================================
        const UIManager = {
            toggleSidebar: () => { document.getElementById('sidebar').classList.toggle('active'); },

            checkScrollState: () => {
                const msgArea = document.getElementById('msgs');
                const isAtBottom = Math.abs((msgArea.scrollHeight - msgArea.scrollTop) - msgArea.clientHeight) < 80;
                AppState.isUserScrolling = !isAtBottom;
                const scrollBtn = document.getElementById('scrollTriggerBtn');
                if (AppState.isUserScrolling) scrollBtn.classList.add('visible');
                else scrollBtn.classList.remove('visible');
            },

            forceScrollDown: () => {
                const msgArea = document.getElementById('msgs');
                msgArea.scrollTo({ top: msgArea.scrollHeight, behavior: 'smooth' });
                AppState.isUserScrolling = false;
                document.getElementById('scrollTriggerBtn').classList.remove('visible');
            },

            autoScroll: () => {
                if (!AppState.isUserScrolling) {
                    const msgArea = document.getElementById('msgs');
                    msgArea.scrollTop = msgArea.scrollHeight;
                }
            },

            autoGrowTextArea: (element) => {
                element.style.height = 'auto';
                element.style.height = Math.min(element.scrollHeight, 200) + 'px';
            },

            toggleAttachMenu: () => {
                document.getElementById('attachDropdownMenu').classList.toggle('visible');
            }
        };

        // =======================================================================================
        // 5. SPEECH & TTS ENGINE (Bilingual STT + Gradio Edge-TTS + Smart Cleaner)
        // =======================================================================================
        const VoiceEngine = {
            recognition: null,
            currentLanguage: 'en-IN',
            
            init: () => {
                const SR = window.SpeechRecognition || window.webkitSpeechRecognition;
                if (!SR) return;

                VoiceEngine.recognition = new SR();
                // FIX: Setting continuous to false to prevent multiple recognitions
                VoiceEngine.recognition.continuous = false;
                VoiceEngine.recognition.interimResults = true;
                VoiceEngine.recognition.lang = VoiceEngine.currentLanguage;

                VoiceEngine.recognition.onstart = () => {
                    AppState.isMicRecording = true;
                    // NEW: Set processing flag to prevent duplicate processing
                    AppState.isProcessingSpeech = true;
                    document.getElementById('masterVoiceBtn').classList.add('active-listening');
                    if (AppState.isLiveModeEngaged) {
                        document.getElementById('liveMicBtn').classList.add('is-recording');
                        document.getElementById('liveStatusText').innerText = "Listening...";
                        document.getElementById('liveOrb').classList.remove('speaking');
                        document.getElementById('liveOrb').style.transform = "scale(1.25)";
                    }
                };

                VoiceEngine.recognition.onresult = (event) => {
                    let finalTranscript = '';
                    let interimTranscript = '';
                    
                    for (let i = event.resultIndex; i < event.results.length; ++i) {
                        if (event.results[i].isFinal) {
                            finalTranscript += event.results[i][0].transcript;
                        } else {
                            interimTranscript += event.results[i][0].transcript;
                        }
                    }

                    if (finalTranscript.trim().length > 0) {
                        let formattedText = finalTranscript.trim();
                        // NEW: Check if this text has already been processed to avoid duplication
                        if (formattedText === AppState.lastProcessedText) {
                            return;
                        }
                        AppState.lastProcessedText = formattedText;
                        
                        formattedText = formattedText.charAt(0).toUpperCase() + formattedText.slice(1);
                        if (!/[.!?।]$/.test(formattedText)) formattedText += '.';
                        
                        if (AppState.isLiveModeEngaged) {
                            document.getElementById('liveTranscriptText').innerText = `"${formattedText}"`;
                            document.getElementById('liveStatusText').innerText = "Synthesizing Response...";
                            document.getElementById('mainChatInput').value = formattedText;
                            
                            // NEW: Set live processing flag to prevent duplicate dispatches
                            if (!AppState.isLiveProcessing) {
                                AppState.isLiveProcessing = true;
                                // Stop mic manually to trigger dispatch in Live Mode
                                VoiceEngine.recognition.stop();
                                ChatEngine.initiateDispatch();
                            }
                        } else {
                            const inputField = document.getElementById('mainChatInput');
                            inputField.value = (inputField.value + ' ' + formattedText + ' ').trim();
                            UIManager.autoGrowTextArea(inputField);
                        }
                    }
                };

                VoiceEngine.recognition.onend = () => {
                    AppState.isMicRecording = false;
                    // NEW: Reset processing flags when recognition ends
                    AppState.isProcessingSpeech = false;
                    if (AppState.isLiveModeEngaged) {
                        AppState.isLiveProcessing = false;
                    }
                    document.getElementById('masterVoiceBtn').classList.remove('active-listening');
                    
                    if (AppState.isLiveModeEngaged && !AppState.isProcessing) {
                        document.getElementById('liveMicBtn').classList.remove('is-recording');
                        document.getElementById('liveStatusText').innerText = "Tap mic to interact";
                        document.getElementById('liveOrb').style.transform = "scale(1)";
                    }
                };

                VoiceEngine.recognition.onerror = (event) => {
                    AppState.isMicRecording = false;
                    // NEW: Reset processing flags on error
                    AppState.isProcessingSpeech = false;
                    if (AppState.isLiveModeEngaged) {
                        AppState.isLiveProcessing = false;
                    }
                    if(event.error !== 'no-speech') {
                        Utils.showToast("Voice module error: " + event.error);
                    }
                    document.getElementById('masterVoiceBtn').classList.remove('active-listening');
                    if (AppState.isLiveModeEngaged) {
                        document.getElementById('liveMicBtn').classList.remove('is-recording');
                        document.getElementById('liveStatusText').innerText = "Audio Failure. Retry.";
                    }
                };
            },

            switchLanguage: () => {
                const btn = document.getElementById('smartLangToggle');
                const badge = document.getElementById('langDisplayBadge');
                
                if (VoiceEngine.currentLanguage === 'en-IN') {
                    VoiceEngine.currentLanguage = 'hi-IN';
                    badge.innerText = 'हि';
                    btn.classList.add('hindi-active');
                    Utils.showToast("Listening Protocol: Hindi (देवनागरी)");
                } else {
                    VoiceEngine.currentLanguage = 'en-IN';
                    badge.innerText = 'EN';
                    btn.classList.remove('hindi-active');
                    Utils.showToast("Listening Protocol: English");
                }
                
                if (VoiceEngine.recognition) {
                    VoiceEngine.recognition.lang = VoiceEngine.currentLanguage;
                    if(AppState.isMicRecording) {
                        VoiceEngine.recognition.stop();
                        setTimeout(() => { VoiceEngine.recognition.start(); }, 400);
                    }
                }
            },

            toggleDictation: () => {
                if (!VoiceEngine.recognition) return Utils.showToast("Hardware dictation unsupported.");
                try {
                    if(AppState.isMicRecording) {
                        VoiceEngine.recognition.stop();
                    } else {
                        VoiceEngine.recognition.start();
                    }
                } catch (e) { console.error("Mic Start Error", e); }
            },

            // ✨ GRADIO TTS INTEGRATION WITH SMART CLEANER
            executeTTS: async (rawText) => {
                // Apply smart text cleaner so AI doesn't read code or image links
                const cleanSpeechText = Utils.cleanTextForVoice(rawText);
                
                if(!cleanSpeechText.trim()) {
                    Utils.showToast("No readable text found.");
                    return;
                }

                Utils.showToast("🔊 Linking with Neural Voice Matrix...");
                if (AppState.isLiveModeEngaged) {
                    document.getElementById('liveOrb').classList.add('speaking');
                }

                try {
                    if(!AppState.gradioClient) {
                        // Fallback dynamically import if not connected
                        const module = await import("https://cdn.jsdelivr.net/npm/@gradio/client/dist/index.min.js");
                        AppState.gradioClient = await module.Client.connect("Vedika66/Edge-TTS");
                    }
                    
                    const result = await AppState.gradioClient.predict("/smart_hybrid_tts", {
                        text: cleanSpeechText,
                        voice_type: "प्रभात (भारी और प्राकृतिक आवाज़ - हिंग्लिश के लिए)"
                    });

                    if (result.data && result.data[0]) {
                        const audioUrl = typeof result.data[0] === 'string' ? result.data[0] : result.data[0].url;
                        const audio = new Audio(audioUrl);
                        
                        audio.onended = () => {
                            if (AppState.isLiveModeEngaged) {
                                document.getElementById('liveOrb').classList.remove('speaking');
                                document.getElementById('liveStatusText').innerText = "Tap mic to respond";
                            }
                        };

                        audio.play();
                    } else {
                        throw new Error("No audio payload returned.");
                    }
                } catch (error) {
                    Utils.showToast("Voice Neural Matrix is currently overloaded.");
                    console.error("Gradio TTS Error:", error);
                    if (AppState.isLiveModeEngaged) {
                        document.getElementById('liveOrb').classList.remove('speaking');
                    }
                }
            }
        };

        /**
         * Live Mode Controller
         */
        const LiveModeController = {
            initialize: () => {
                AppState.isLiveModeEngaged = true;
                document.getElementById('liveOverlay').classList.add('active');
                if (VoiceEngine.recognition && !AppState.isMicRecording) {
                    setTimeout(() => { 
                        try { VoiceEngine.recognition.start(); } catch(e){} 
                    }, 500);
                }
            },
            terminate: () => {
                AppState.isLiveModeEngaged = false;
                document.getElementById('liveOverlay').classList.remove('active');
                if (VoiceEngine.recognition && AppState.isMicRecording) {
                    try { VoiceEngine.recognition.stop(); } catch(e){}
                }
            }
        };

        // =======================================================================================
        // 6. FILE & DOCUMENT PROCESSOR (Non-Technical Vocabulary)
        // =======================================================================================
        const FileProcessor = {
            triggerFileSelector: (type) => {
                document.getElementById('attachDropdownMenu').classList.remove('visible');
                document.getElementById('sys-inp-' + type).click();
            },

            processFile: async (inputElement, typeContext) => {
                const file = inputElement.files[0];
                if (!file) return;
                
                const fName = file.name.toLowerCase();
                const mime = file.type;
                
                if (typeContext === 'image' && !mime.startsWith('image/')) { Utils.showToast("Visual media required."); inputElement.value=''; return; }
                if (typeContext === 'video' && !mime.startsWith('video/')) { Utils.showToast("Video media required."); inputElement.value=''; return; }
                if (typeContext === 'audio' && !mime.startsWith('audio/')) { Utils.showToast("Audio media required."); inputElement.value=''; return; }

                Utils.showToast(`Uploading your file...`);
                
                const thumbImg = document.getElementById('previewImgThumb');
                const docIcon = document.getElementById('previewDocIcon');
                
                thumbImg.style.display = 'none';
                docIcon.style.display = 'none';
                document.getElementById('previewFileName').innerText = file.name;
                document.getElementById('filePreviewBar').classList.add('visible');

                const fileReader = new FileReader();

                if (typeContext === 'image') {
                    fileReader.onload = (e) => {
                        AppState.pendingAttachment = { type: 'image', data: e.target.result.split(',')[1], name: file.name };
                        thumbImg.src = e.target.result;
                        thumbImg.style.display = 'flex';
                    };
                    fileReader.readAsDataURL(file);
                } 
                else if (typeContext === 'video' || typeContext === 'audio') {
                    fileReader.onload = (e) => {
                        AppState.pendingAttachment = { type: typeContext, data: e.target.result.split(',')[1], name: file.name };
                        docIcon.innerText = typeContext === 'video' ? '🎥' : '🎵';
                        docIcon.style.display = 'flex';
                    };
                    fileReader.readAsDataURL(file);
                } 
                else if (typeContext === 'document') {
                    docIcon.innerText = '📄';
                    docIcon.style.display = 'flex';
                    
                    if (fName.endsWith('.pdf')) {
                        fileReader.onload = async function() {
                            try {
                                const typedArray = new Uint8Array(this.result);
                                const pdfDoc = await pdfjsLib.getDocument(typedArray).promise;
                                let extractedText = "";
                                for (let i = 1; i <= pdfDoc.numPages; i++) {
                                    const page = await pdfDoc.getPage(i);
                                    const content = await page.getTextContent();
                                    extractedText += content.items.map(s => s.str).join(' ') + "\n";
                                }
                                AppState.pendingAttachment = { type: 'text', data: extractedText.trim() || "No readable text found.", name: file.name };
                                Utils.showToast("Your PDF is ready!");
                            } catch (e) {
                                Utils.showToast("PDF parsing encountered an error.");
                                FileProcessor.discardFile();
                            }
                        };
                        fileReader.readAsArrayBuffer(file);
                    } 
                    else if (fName.endsWith('.docx') || fName.endsWith('.doc')) {
                        fileReader.onload = async function() {
                            try {
                                const buffer = this.result;
                                const resultData = await mammoth.extractRawText({ arrayBuffer: buffer });
                                AppState.pendingAttachment = { type: 'text', data: resultData.value.trim() || "No readable text found.", name: file.name };
                                Utils.showToast("Your Word document is ready!");
                            } catch(e) {
                                Utils.showToast("Document parsing encountered an error.");
                                FileProcessor.discardFile();
                            }
                        };
                        fileReader.readAsArrayBuffer(file);
                    } 
                    else {
                        fileReader.onload = (e) => {
                            AppState.pendingAttachment = { type: 'text', data: e.target.result, name: file.name };
                            Utils.showToast("Your file is ready!");
                        };
                        fileReader.readAsText(file);
                    }
                }
                inputElement.value = '';
            },

            discardFile: () => {
                AppState.pendingAttachment = null;
                document.getElementById('filePreviewBar').classList.remove('visible');
            }
        };

        // =======================================================================================
        // 7. WORKSPACE ENGINE & MARKDOWN RENDERING
        // =======================================================================================
        const WorkspaceEngine = {
            launch: (codeBlockId) => {
                AppState.currentWorkspaceId = codeBlockId;
                const codeData = AppState.generatedCodeBlocks[codeBlockId];
                
                document.getElementById('wsTitleText').innerText = codeData.lang ? `Generated ${codeData.lang.toUpperCase()}` : "Compiled Code";
                const blockDisplay = document.getElementById('workspaceCodeBlock');
                blockDisplay.className = `hljs language-${codeData.lang || 'plaintext'}`;
                blockDisplay.textContent = codeData.code;
                
                hljs.highlightElement(blockDisplay);
                document.getElementById('workspacePanel').classList.add('expanded');
                
                if (window.innerWidth <= 1024) {
                    document.getElementById('sidebar').classList.remove('active');
                }
            },
            
            closePanel: () => { document.getElementById('workspacePanel').classList.remove('expanded'); },

            executeCopy: (btnElement) => {
                if (AppState.currentWorkspaceId !== null) {
                    const srcCode = AppState.generatedCodeBlocks[AppState.currentWorkspaceId].code;
                    Utils.copyToClipboard(btnElement, srcCode);
                }
            }
        };

        const MD_Renderer = new marked.Renderer();
        MD_Renderer.code = function(token) {
            const rawCode = typeof token === 'string' ? token : (token.text || '');
            const langClass = typeof token === 'string' ? arguments[1] : (token.lang || '');
            
            if (AppState.isStreamingActive) {
                return `
                <div class="streaming-code-container">
                    <div class="streaming-code-header">
                        <div class="loading-ring"></div>
                        Generating Architecture...
                    </div>
                    <pre><code class="language-${langClass}">${Utils.escapeHTML(rawCode)}</code></pre>
                </div>`;
            }
            
            const internalId = AppState.generatedCodeBlocks.length;
            AppState.generatedCodeBlocks.push({ code: rawCode, lang: langClass });
            
            return `
            <div class="workspace-execute-card">
                <div class="ws-card-left">
                    <div class="ws-card-icon-box">
                        <svg viewBox="0 0 24 24" width="28" height="28" fill="none" stroke="currentColor" stroke-width="2.5"><polyline points="16 18 22 12 16 6"></polyline><polyline points="8 6 2 12 8 18"></polyline></svg>
                    </div>
                    <div class="ws-card-details">
                        <h4>Code Module Compiled</h4>
                        <p>${langClass || 'Syntax Detected'}