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Update templates/index.html

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@@ -1,1092 +1,439 @@
 <!DOCTYPE html>
 <html lang="fr">
 <head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>Mariam AI</title>
-  <!-- Tailwind CSS via CDN -->
-  <script src="https://cdn.tailwindcss.com?plugins=forms,typography"></script>
-  <!-- Font Awesome pour les icônes -->
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-  <!-- Google Fonts -->
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
-  <!-- Favicon (Emoji amélioré) -->
-  <link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>✨</text></svg>">
-  <script>
-    tailwind.config = {
-      darkMode: 'class',
-      theme: {
-        extend: {
-          fontFamily: {
-            sans: ['Inter', 'system-ui', 'sans-serif'],
-            mono: ['"JetBrains Mono"', 'monospace']
-          },
-          colors: {
-            primary: { 50: '#f0f9ff', 100: '#e0f2fe', 200: '#bae6fd', 300: '#7dd3fc', 400: '#38bdf8', 500: '#0ea5e9', 600: '#0284c7', 700: '#0369a1', 800: '#075985', 900: '#0c4a6e' },
-            secondary: { 50: '#f8fafc', 100: '#f1f5f9', 200: '#e2e8f0', 300: '#cbd5e1', 400: '#94a3b8', 500: '#64748b', 600: '#475569', 700: '#334155', 800: '#1e293b', 900: '#0f172a' },
-            accent: { 50: '#fdf4ff', 100: '#fae8ff', 200: '#f5d0fe', 300: '#f0abfc', 400: '#e879f9', 500: '#d946ef', 600: '#c026d3', 700: '#a21caf', 800: '#86198f', 900: '#701a75' }
-          },
-          animation: { 'bounce-slow': 'bounce 2s infinite', 'pulse-slow': 'pulse 3s infinite', 'typing': 'typing 1.2s steps(3) infinite' },
-          keyframes: { typing: { '0%': { width: '0.15em' }, '50%': { width: '0.7em' }, '100%': { width: '0.15em' } } }
         }
-      }
-    }
-  </script>
-  <style>
-    html {
-      scroll-behavior: smooth;
-      overflow-x: hidden; /* Empêche le scroll horizontal global */
-    }
-    body {
-      font-family: 'Inter', sans-serif;
-      transition: background-color 0.3s ease, color 0.3s ease;
-      overflow-x: hidden; /* Empêche le scroll horizontal du body */
-    }
-    .chat-layout {
-      min-height: calc(100vh - 64px);
-      display: grid;
-      grid-template-rows: 1fr auto;
-    }
-    ::-webkit-scrollbar {
-      width: 5px;
-      height: 5px;
-    }
-    ::-webkit-scrollbar-track {
-      background: transparent;
-    }
-    ::-webkit-scrollbar-thumb {
-      background: #cbd5e1;
-      border-radius: 5px;
-    }
-    .dark ::-webkit-scrollbar-thumb {
-      background: #475569;
-    }
-    ::-webkit-scrollbar-thumb:hover {
-      background: #94a3b8;
-    }
-    .dark ::-webkit-scrollbar-thumb:hover {
-      background: #64748b;
-    }
-    .message-bubble {
-      position: relative;
-      max-width: 85%;
-      border-radius: 1rem;
-      padding: 0.875rem 1rem;
-      line-height: 1.5;
-      animation: message-fade-in 0.3s ease-out;
-      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
-      transition: transform 0.2s ease, box-shadow 0.2s ease;
-    }
-    .message-bubble:hover {
-      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
-    }
-    .dark .message-bubble {
-      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
-    }
-    .dark .message-bubble:hover {
-      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2), 0 1px 3px rgba(0, 0, 0, 0.3);
-    }
-    .user-message {
-      border-bottom-right-radius: 0.125rem;
-      align-self: flex-end;
-      background: linear-gradient(to bottom right, #3b82f6, #2563eb);
-      color: white;
-    }
-    .assistant-message {
-      border-bottom-left-radius: 0.125rem;
-      align-self: flex-start;
-    }
-    .dark .assistant-message {
-      background-color: #1e293b;
-      color: #e2e8f0;
-      border-color: #334155;
-    }
-    @keyframes message-fade-in {
-      from { opacity: 0; transform: translateY(10px); }
-      to { opacity: 1; transform: translateY(0); }
-    }
-    @keyframes pulse-fade {
-      0%, 100% { opacity: 0.5; }
-      50% { opacity: 1; }
-    }
-    .typing-indicator {
-      display: inline-flex;
-      align-items: center;
-      margin-left: 0.5rem;
-    }
-    .typing-dot {
-      width: 0.5rem;
-      height: 0.5rem;
-      border-radius: 50%;
-      background-color: currentColor;
-      opacity: 0.7;
-      margin: 0 0.1rem;
-    }
-    .typing-dot:nth-child(1) { animation: pulse-fade 1.2s 0s infinite; }
-    .typing-dot:nth-child(2) { animation: pulse-fade 1.2s 0.2s infinite; }
-    .typing-dot:nth-child(3) { animation: pulse-fade 1.2s 0.4s infinite; }
-    .dark body {
-      background-color: #0f172a;
-      color: #e2e8f0;
-    }
-    .tooltip {
-      position: relative;
-    }
-    .tooltip .tooltip-text {
-      visibility: hidden;
-      width: max-content;
-      max-width: 200px;
-      background-color: #1e293b;
-      color: #f8fafc;
-      text-align: center;
-      border-radius: 6px;
-      padding: 0.375rem 0.625rem;
-      position: absolute;
-      z-index: 1;
-      bottom: 125%;
-      left: 50%;
-      transform: translateX(-50%);
-      opacity: 0;
-      transition: opacity 0.3s, visibility 0.3s;
-      font-size: 0.75rem;
-      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
-      pointer-events: none;
-    }
-    .dark .tooltip .tooltip-text {
-      background-color: #475569;
-      color: #f1f5f9;
-    }
-    .tooltip .tooltip-text::after {
-      content: "";
-      position: absolute;
-      top: 100%;
-      left: 50%;
-      margin-left: -5px;
-      border-width: 5px;
-      border-style: solid;
-      border-color: #1e293b transparent transparent transparent;
-    }
-    .dark .tooltip .tooltip-text::after {
-      border-color: #475569 transparent transparent transparent;
-    }
-    .tooltip:hover .tooltip-text {
-      visibility: visible;
-      opacity: 1;
-    }
-    .copy-btn {
-      position: absolute;
-      top: 0.5rem;
-      right: 0.5rem;
-      opacity: 0;
-      transition: opacity 0.2s ease, background-color 0.2s ease;
-      z-index: 2;
-    }
-    .message-bubble:hover .copy-btn {
-      opacity: 1;
-    }
-    .file-preview {
-      max-width: 300px;
-      margin: 0.5rem auto;
-      position: relative;
-      overflow: hidden;
-      border-radius: 0.5rem;
-      transition: transform 0.2s ease;
-    }
-    .file-preview:hover {
-      transform: scale(1.02);
-    }
-    .file-preview img {
-      width: 100%;
-      height: auto;
-      display: block;
-      object-fit: cover;
-    }
-    .chip {
-      display: inline-flex;
-      align-items: center;
-      background: #e0f2fe;
-      border-radius: 9999px;
-      padding: 0.25rem 0.75rem;
-      font-size: 0.75rem;
-      font-weight: 500;
-      color: #0369a1;
-      transition: all 0.2s ease;
-    }
-    .chip .chip-icon { margin-right: 0.25rem; }
-    .chip .chip-close {
-      margin-left: 0.25rem;
-      cursor: pointer;
-      opacity: 0.7;
-      transition: opacity 0.2s ease;
-    }
-    .chip .chip-close:hover { opacity: 1; }
-    .dark .chip {
-      background: #0c4a6e;
-      color: #7dd3fc;
-    }
-    .toggle-switch {
-      position: relative;
-      display: inline-block;
-      width: 2.5rem;
-      height: 1.25rem;
-    }
-    .toggle-switch input {
-      opacity: 0;
-      width: 0;
-      height: 0;
-    }
-    .toggle-slider {
-      position: absolute;
-      cursor: pointer;
-      top: 0;
-      left: 0;
-      right: 0;
-      bottom: 0;
-      background-color: #cbd5e1;
-      transition: .4s;
-      border-radius: 1.25rem;
-    }
-    .toggle-slider:before {
-      position: absolute;
-      content: "";
-      height: 0.875rem;
-      width: 0.875rem;
-      left: 0.25rem;
-      bottom: 0.1875rem;
-      background-color: white;
-      transition: .4s;
-      border-radius: 50%;
-    }
-    input:checked + .toggle-slider {
-      background-color: #0ea5e9;
-    }
-    input:focus + .toggle-slider {
-      box-shadow: 0 0 1px #0ea5e9;
-    }
-    input:checked + .toggle-slider:before {
-      transform: translateX(1.125rem);
-    }
-    .dark .toggle-slider {
-      background-color: #475569;
-    }
-    .dark input:checked + .toggle-slider {
-      background-color: #38bdf8;
-    }
-    .chat-input {
-      transition: all 0.3s ease;
-      border-color: #e2e8f0;
-    }
-    .chat-input:focus {
-      border-color: #38bdf8;
-      box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
-    }
-    .dark .chat-input {
-      background-color: #1e293b;
-      color: #f1f5f9;
-      border-color: #334155;
-    }
-    .dark .chat-input:focus {
-      border-color: #38bdf8;
-      box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
-    }
-    pre {
-      position: relative;
-      background-color: #f8fafc;
-      border-radius: 0.5rem;
-      margin: 1rem 0;
-      padding: 1.25rem 1rem;
-      overflow-x: auto;
-    }
-    .dark pre {
-      background-color: #1e293b;
-      color: #e2e8f0;
-    }
-    code {
-      font-family: 'JetBrains Mono', monospace;
-      font-size: 0.875rem;
-    }
-    .code-copy-btn {
-      position: absolute;
-      top: 0.5rem;
-      right: 0.5rem;
-      opacity: 0;
-      transition: opacity 0.2s ease;
-    }
-    pre:hover .code-copy-btn {
-      opacity: 0.7;
-    }
-    /* Amélioration de l'affichage des tableaux Markdown */
-    .table-wrapper {
-      width: 100%;
-      overflow-x: auto;
-      margin: 1rem 0;
-      border: 1px solid #e2e8f0;
-      border-radius: 0.5rem;
-    }
-    .dark .table-wrapper {
-      border-color: #334155;
-    }
-    .prose table {
-      width: 100%;
-      min-width: 100%;
-      border-collapse: collapse;
-      margin: 0;
-    }
-    .prose table th,
-    .prose table td {
-      border: 1px solid #e2e8f0;
-      padding: 0.5rem 0.75rem;
-      text-align: left;
-      border-top: none;
-      border-left: none;
-      border-right: none;
-    }
-    .prose table th {
-      border-bottom-width: 2px;
-    }
-    .dark .prose table th,
-    .dark .prose table td {
-      border-color: #334155;
-    }
-    .prose table thead {
-      background-color: #f8fafc;
-      font-weight: 600;
-    }
-    .dark .prose table thead {
-      background-color: #1e293b;
-    }
-    .prose table tbody tr:nth-child(even) {
-      background-color: #f8fafc;
-    }
-    .dark .prose table tbody tr:nth-child(even) {
-      background-color: #1e293b;
-    }
-    /* Pour le textarea qui s'adapte au contenu */
-    .chat-textarea {
-      resize: none;
-      min-height: 44px;
-      max-height: 200px;
-      overflow-y: auto;
-      line-height: 1.5;
-      width: 100%;
-      border-radius: 9999px;
-      padding-top: 0.625rem;
-      padding-bottom: 0.625rem;
-      padding-left: 1rem;
-      padding-right: 3rem;
-      box-sizing: border-box;
-    }
-    /* Ajustements responsive */
-    @media (max-width: 640px) {
-      .message-bubble {
-        max-width: 90%;
-        padding: 0.75rem 0.875rem;
-      }
-      .chat-textarea {
-        max-height: 120px;
-        font-size: 0.95rem;
-        min-height: 40px;
-        padding-top: 0.5rem;
-        padding-bottom: 0.5rem;
-      }
-      .prose table {
-        min-width: 0;
-        font-size: 0.85rem;
-      }
-      .prose table th,
-      .prose table td {
-        padding: 0.375rem 0.5rem;
-      }
-      .send-button-wrapper {
-        padding-right: 0.25rem;
-      }
-      .chat-textarea {
-        padding-right: 2.75rem;
-      }
-      #send-button {
-        width: 32px;
-        height: 32px;
-        padding: 0;
-        display: inline-flex;
-        align-items: center;
-        justify-content: center;
-      }
-      #send-button i {
-        font-size: 0.9rem;
-      }
-    }
-    /* Container pour le textarea et le bouton */
-    .input-wrapper {
-      position: relative;
-      display: flex;
-      align-items: flex-end;
-    }
-    .send-button-wrapper {
-      position: absolute;
-      right: 0.5rem;
-      bottom: 0.5rem;
-    }
-  </style>
-</head>
-<body class="bg-gray-50 text-gray-900 antialiased">
-  <!-- Header -->
-  <header class="bg-gradient-to-r from-primary-600 to-primary-800 text-white py-3 px-4 shadow-md sticky top-0 z-10">
-    <div class="max-w-4xl mx-auto flex justify-between items-center">
-      <!-- Logo & Titre -->
-      <div class="flex items-center space-x-2">
-        <img src="https://mariam-241.vercel.app/static/image/logoboma.png" alt="Logo Mariam AI" class="h-8 sm:h-10 object-contain">
-        <h1 class="text-xl font-bold">Mariam AI</h1>
-      </div>
-      <!-- Actions -->
-      <div class="flex items-center space-x-2 sm:space-x-4">
-        <button id="theme-toggle" class="p-2 rounded-full hover:bg-primary-700/50 transition-colors duration-200 tooltip" aria-label="Changer de thème">
-          <i class="fa-solid fa-moon dark:hidden"></i>
-          <i class="fa-solid fa-sun hidden dark:inline"></i>
-          <span class="tooltip-text">Mode clair/sombre</span>
-        </button>
-        <form action="/clear" method="POST" id="clear-form">
-          <button type="submit" class="flex items-center bg-red-500 hover:bg-red-600 text-white text-xs font-semibold py-1.5 px-3 rounded-full transition duration-200 focus:outline-none focus:ring-2 focus:ring-red-400 focus:ring-opacity-75 tooltip">
-            <i class="fa-solid fa-trash-can mr-1.5"></i>
-            <span class="hidden sm:inline">Effacer</span>
-            <span class="tooltip-text">Effacer la conversation</span>
-          </button>
-        </form>
-      </div>
-    </div>
-  </header>
-  <!-- Main Container -->
-  <main class="max-w-4xl mx-auto chat-layout">
-    <!-- Conteneur des messages -->
-    <section id="chat-messages" class="flex flex-col space-y-6 p-4 overflow-y-auto">
-      <!-- Chargement de l'historique -->
-      <div id="history-loading" class="text-center py-10">
-        <div class="inline-flex items-center px-4 py-2 bg-primary-50 text-primary-700 rounded-lg dark:bg-primary-900/30 dark:text-primary-300">
-          <svg class="animate-spin h-5 w-5 mr-3" viewBox="0 0 24 24">
-            <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
-            <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
-          </svg>
-          <span>Chargement de la conversation...</span>
-        </div>
-      </div>
-      <!-- Indicateur de chargement pour les réponses -->
-      <div id="loading-indicator" class="flex items-start space-x-2 hidden">
-        <div class="w-8 h-8 rounded-full bg-primary-100 flex items-center justify-center flex-shrink-0 dark:bg-primary-900/50">
-          <span class="text-lg">✨</span>
-        </div>
-        <div class="message-bubble assistant-message bg-secondary-50 text-secondary-900 border border-secondary-200 flex items-center">
-          <span>Mariam réfléchit</span>
-          <div class="typing-indicator">
-            <span class="typing-dot"></span>
-            <span class="typing-dot"></span>
-            <span class="typing-dot"></span>
-          </div>
-        </div>
-      </div>
-    </section>
-    <!-- Conteneur du bas -->
-    <div class="border-t border-gray-200 dark:border-gray-700">
-      <!-- Zone d'erreur -->
-      <div id="error-message" class="bg-red-100 border-l-4 border-red-500 text-red-700 p-4 dark:bg-red-900/30 dark:text-red-300 dark:border-red-600 hidden" role="alert">
-        <div class="flex">
-          <div class="flex-shrink-0"><i class="fa-solid fa-circle-exclamation"></i></div>
-          <div class="ml-3"><p class="text-sm font-medium" id="error-text">Le message d'erreur détaillé ira ici.</p></div>
-          <button class="ml-auto" id="dismiss-error"><i class="fa-solid fa-xmark"></i></button>
-        </div>
-      </div>
-      <!-- Zone de prévisualisation -->
-      <div id="preview-area" class="px-4 py-2 bg-gray-50 dark:bg-gray-800/50 hidden">
-        <div id="file-preview" class="hidden"></div>
-      </div>
-      <!-- Barre d'options -->
-      <div class="flex items-center justify-between flex-wrap gap-y-2 px-4 py-2 bg-gray-100 dark:bg-gray-800/80 text-sm text-gray-600 dark:text-gray-300">
-         <div class="flex items-center space-x-4 flex-wrap gap-y-2">
-           <label class="flex items-center cursor-pointer tooltip">
-             <span class="mr-2 text-xs sm:text-sm font-medium"><i class="fa-solid fa-globe mr-1.5"></i><span class="hidden sm:inline">Recherche Web</span></span>
-             <span class="toggle-switch">
-               <input type="checkbox" id="web_search_toggle" name="web_search" value="true">
-               <span class="toggle-slider"></span>
-             </span>
-             <span class="tooltip-text">Activer la recherche web</span>
-           </label>
-           <label class="flex items-center cursor-pointer tooltip">
-             <span class="mr-2 text-xs sm:text-sm font-medium text-accent-700 dark:text-accent-300">
-               <i class="fa-solid fa-brain mr-1.5"></i>
-               <span class="hidden sm:inline">Avancé</span>
-               <span id="advanced-cooldown-timer" class="text-xs ml-1 hidden"></span>
-             </span>
-             <span class="toggle-switch">
-               <input type="checkbox" id="advanced_reasoning_toggle" name="advanced_reasoning" value="true">
-               <span class="toggle-slider"></span>
-             </span>
-             <span class="tooltip-text">Raisonnement avancé (1 fois/min)</span>
-           </label>
-         </div>
-         <div class="flex items-center space-x-2">
-           <label for="file_upload" class="cursor-pointer flex items-center text-primary-600 hover:text-primary-700 dark:text-primary-400 dark:hover:text-primary-300 tooltip">
-             <i class="fa-solid fa-paperclip"></i>
-             <span class="ml-1.5 hidden sm:inline">Fichier</span>
-             <input type="file" id="file_upload" name="file" class="hidden" accept=".txt,.pdf,.png,.jpg,.jpeg">
-             <span class="tooltip-text">Joindre (txt, pdf, image)</span>
-           </label>
-           <div id="file-chip" class="chip hidden">
-             <i class="fa-solid fa-file chip-icon"></i>
-             <span id="file-name" class="truncate max-w-[100px] sm:max-w-[120px]"></span>
-             <i id="clear-file" class="fa-solid fa-xmark chip-close"></i>
-           </div>
-         </div>
-      </div>
-      <!-- Formulaire de chat -->
-      <form id="chat-form" class="p-3 sm:p-4 bg-white dark:bg-gray-900">
-        <div class="input-wrapper">
-          <textarea
-            id="prompt"
-            name="prompt"
-            class="chat-input chat-textarea w-full border focus:outline-none text-sm sm:text-base"
-            placeholder="Posez votre question à Mariam..."
-            autocomplete="off"
-            rows="1"></textarea>
-          <div class="send-button-wrapper">
-            <button
-              type="submit"
-              id="send-button"
-              class="bg-primary-500 hover:bg-primary-600 disabled:bg-primary-300 text-white rounded-full p-2 transition focus:outline-none focus:ring-2 focus:ring-primary-400 flex items-center justify-center"
-              title="Envoyer le message">
-              <i class="fa-solid fa-paper-plane text-sm"></i>
-            </button>
-          </div>
-        </div>
-        <div class="text-xs text-center mt-2 text-gray-400 dark:text-gray-500">
-          Appuyez sur <kbd class="px-1.5 py-0.5 bg-gray-100 dark:bg-gray-800 rounded border border-gray-300 dark:border-gray-700">Entrée</kbd>
-          <span class="hidden sm:inline"> pour envoyer</span>
-          <span class="sm:hidden"> pour une nouvelle ligne</span>
-          •
-          <kbd class="px-1.5 py-0.5 bg-gray-100 dark:bg-gray-800 rounded border border-gray-300 dark:border-gray-700">Shift+Entrée</kbd>
-          <span class="hidden sm:inline"> pour une nouvelle ligne</span>
-          <span class="sm:hidden"> pour envoyer</span>
-        </div>
-      </form>
-    </div>
-  </main>
-  <!-- Scripts -->
-  <script>
-    document.addEventListener('DOMContentLoaded', () => {
-      // Sélection des éléments
-      const chatForm = document.getElementById('chat-form');
-      const promptInput = document.getElementById('prompt');
-      const chatMessages = document.getElementById('chat-messages');
-      const loadingIndicator = document.getElementById('loading-indicator');
-      const historyLoadingIndicator = document.getElementById('history-loading');
-      const errorMessageDiv = document.getElementById('error-message');
-      const errorTextP = document.getElementById('error-text');
-      const dismissErrorBtn = document.getElementById('dismiss-error');
-      const webSearchToggle = document.getElementById('web_search_toggle');
-      const fileUpload = document.getElementById('file_upload');
-      const fileChip = document.getElementById('file-chip');
-      const fileNameSpan = document.getElementById('file-name');
-      const clearFileButton = document.getElementById('clear-file');
-      const filePreview = document.getElementById('file-preview');
-      const previewArea = document.getElementById('preview-area');
-      const sendButton = document.getElementById('send-button');
-      const clearForm = document.getElementById('clear-form');
-      const advancedToggle = document.getElementById('advanced_reasoning_toggle');
-      const advancedCooldownTimerSpan = document.getElementById('advanced-cooldown-timer');
-      const themeToggleBtn = document.getElementById('theme-toggle');
-      const API_CHAT_ENDPOINT = '/api/chat';
-      const API_HISTORY_ENDPOINT = '/api/history';
-      const CLEAR_ENDPOINT = '/clear';
-      const COOLDOWN_DURATION = 60 * 1000;
-      const MOBILE_BREAKPOINT = 640;
-      let advancedToggleCooldownEndTime = 0;
-      let isComposing = false;
-      // Gestion du thème
-      function initializeTheme() {
-        if (localStorage.theme === 'dark' || (!('theme' in localStorage) && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
-          document.documentElement.classList.add('dark');
-        } else {
-          document.documentElement.classList.remove('dark');
-        }
-      }
-      function toggleTheme() {
-        if (document.documentElement.classList.contains('dark')) {
-          document.documentElement.classList.remove('dark');
-          localStorage.theme = 'light';
-        } else {
-          document.documentElement.classList.add('dark');
-          localStorage.theme = 'dark';
         }
-      }
-      themeToggleBtn.addEventListener('click', toggleTheme);
-      initializeTheme();
-      // Ajuster la hauteur du textarea
-      function adjustTextareaHeight(textarea) {
-        textarea.style.height = 'auto';
-        const style = window.getComputedStyle(textarea);
-        const maxHeight = parseInt(style.maxHeight, 10);
-        const newHeight = Math.min(maxHeight || 200, textarea.scrollHeight);
-        textarea.style.height = newHeight + 'px';
-      }
-      // Défilement vers le bas
-      function scrollToBottom(smooth = true) {
-        setTimeout(() => {
-          chatMessages.scrollTo({ top: chatMessages.scrollHeight, behavior: smooth ? 'smooth' : 'auto' });
-        }, 50);
-      }
-      // Affichage de l'indicateur de chargement
-      function showLoading(show) {
-        if (show) {
-          loadingIndicator.classList.remove('hidden');
-          chatMessages.appendChild(loadingIndicator);
-          scrollToBottom();
-        } else {
-          loadingIndicator.classList.add('hidden');
         }
-        sendButton.disabled = show;
-        promptInput.disabled = show;
-        fileUpload.disabled = show;
-        if (show) {
-          clearFileButton.style.pointerEvents = 'none';
-          clearFileButton.style.opacity = '0.5';
-        } else {
-          clearFileButton.style.pointerEvents = 'auto';
-          clearFileButton.style.opacity = '0.7';
         }
-      }
-      // Affichage des erreurs
-      function displayError(message) {
-        errorTextP.textContent = message || "Une erreur inconnue est survenue.";
-        errorMessageDiv.classList.remove('hidden');
-      }
-      dismissErrorBtn.addEventListener('click', () => { errorMessageDiv.classList.add('hidden'); });
-      // Ajout d'un message dans le chat
-      function addMessageToChat(role, content, isHtml = false) {
-        errorMessageDiv.classList.add('hidden');
-        const messageWrapper = document.createElement('div');
-        messageWrapper.classList.add('flex', 'w-full', role === 'user' ? 'justify-end' : 'justify-start');
-        let messageContentHtml = '';
-        if (isHtml) {
-          messageContentHtml = content;
-        } else {
-          messageContentHtml = `<p class="text-sm sm:text-base whitespace-pre-wrap">${escapeHtml(content)}</p>`;
         }
-        let bubbleHtml = '';
-        if (role === 'user') {
-          bubbleHtml = `
-            <div class="message-bubble user-message">
-              ${messageContentHtml}
-            </div>
-          `;
-        } else {
-          bubbleHtml = `
-            <div class="flex items-start space-x-2 max-w-[85%]">
-              <div class="w-8 h-8 rounded-full bg-primary-100 flex items-center justify-center flex-shrink-0 dark:bg-primary-900/50">
-                <span class="text-lg">✨</span>
-              </div>
-              <div class="message-bubble assistant-message bg-secondary-50 text-secondary-900 border border-secondary-200 relative">
-                <div class="prose prose-sm sm:prose-base max-w-none dark:prose-invert">
-                  ${messageContentHtml}
-                </div>
-                <button class="copy-btn text-xs bg-white/90 dark:bg-gray-800/90 hover:bg-gray-100 dark:hover:bg-gray-700 py-1 px-2 rounded text-gray-600 dark:text-gray-300 flex items-center">
-                  <i class="fa-regular fa-copy mr-1"></i> Copier
-                </button>
-              </div>
-            </div>
-          `;
         }
-        messageWrapper.innerHTML = bubbleHtml;
-        // Activation du bouton de copie
-        const copyBtns = messageWrapper.querySelectorAll('.copy-btn');
-        copyBtns.forEach(btn => {
-          btn.addEventListener('click', function() {
-            const textToCopy = this.closest('.message-bubble').querySelector('.prose').innerText || this.closest('.message-bubble').innerText;
-            navigator.clipboard.writeText(textToCopy).then(() => {
-              const originalText = this.innerHTML;
-              this.innerHTML = '<i class="fa-solid fa-check mr-1"></i> Copié';
-              setTimeout(() => { this.innerHTML = originalText; }, 2000);
-            }).catch(err => console.error('Copy failed:', err));
-          });
-        });
-        // Activation de la copie pour les blocs de code
-        const codeBlocks = messageWrapper.querySelectorAll('pre');
-        codeBlocks.forEach(pre => {
-          const code = pre.querySelector('code');
-          if (!code) return;
-          if (pre.querySelector('.code-copy-btn')) return;
-          const copyButton = document.createElement('button');
-          copyButton.innerHTML = '<i class="fa-regular fa-copy"></i>';
-          copyButton.className = 'code-copy-btn p-1.5 bg-gray-200/50 dark:bg-gray-700/50 rounded text-gray-600 dark:text-gray-300 hover:bg-gray-300/70 dark:hover:bg-gray-600/70 tooltip';
-          copyButton.setAttribute('aria-label', 'Copier le code');
-          const tooltipText = document.createElement('span');
-          tooltipText.className = 'tooltip-text !text-xs';
-          tooltipText.textContent = 'Copier le code';
-          copyButton.appendChild(tooltipText);
-          copyButton.addEventListener('click', () => {
-            navigator.clipboard.writeText(code.innerText).then(() => {
-              tooltipText.textContent = 'Copié!';
-              copyButton.innerHTML = '<i class="fa-solid fa-check"></i>';
-              setTimeout(() => {
-                copyButton.innerHTML = '<i class="fa-regular fa-copy"></i>';
-                copyButton.appendChild(tooltipText);
-                tooltipText.textContent = 'Copier le code';
-              }, 2000);
-            }).catch(err => {
-              tooltipText.textContent = 'Erreur copie';
-              console.error('Failed to copy code: ', err);
-              setTimeout(() => { tooltipText.textContent = 'Copier le code'; }, 2000);
-            });
-          });
-          pre.appendChild(copyButton);
-        });
-        chatMessages.insertBefore(messageWrapper, loadingIndicator);
-        scrollToBottom();
-      }
-      function escapeHtml(unsafe) {
-        return unsafe
-          .replace(/&/g, "&amp;")
-          .replace(/</g, "&lt;")
-          .replace(/>/g, "&gt;")
-          .replace(/"/g, "&quot;")
-          .replace(/'/g, "&#039;");
-      }
-      // Gestion du cooldown pour le raisonnement avancé
-      function startAdvancedCooldownTimer() {
-        advancedToggle.disabled = true;
-        advancedToggleCooldownEndTime = Date.now() + COOLDOWN_DURATION;
-        const intervalId = setInterval(() => {
-          const now = Date.now();
-          if (now >= advancedToggleCooldownEndTime) {
-            clearInterval(intervalId);
-            advancedCooldownTimerSpan.classList.add('hidden');
-            advancedToggle.disabled = false;
-            advancedToggleCooldownEndTime = 0;
-          } else {
-            const remainingSeconds = Math.ceil((advancedToggleCooldownEndTime - now) / 1000);
-            advancedCooldownTimerSpan.textContent = `(${remainingSeconds}s)`;
-            advancedCooldownTimerSpan.classList.remove('hidden');
-          }
-        }, 1000);
-        const remainingSeconds = Math.ceil((advancedToggleCooldownEndTime - Date.now()) / 1000);
-        advancedCooldownTimerSpan.textContent = `(${remainingSeconds}s)`;
-        advancedCooldownTimerSpan.classList.remove('hidden');
-      }
-      // Chargement de l'historique du chat
-      async function loadChatHistory() {
-        historyLoadingIndicator.style.display = 'flex';
-        try {
-          const response = await fetch(API_HISTORY_ENDPOINT);
-          if (!response.ok) {
-            let errorMsg = `Erreur serveur (${response.status})`;
-            try {
-              const errData = await response.json();
-              errorMsg = errData.error || errorMsg;
-            } catch (e) {}
-            throw new Error(errorMsg);
-          }
-          const data = await response.json();
-          const messagesToRemove = chatMessages.querySelectorAll(':scope > *:not(#loading-indicator)');
-          messagesToRemove.forEach(el => el.remove());
-          loadingIndicator.classList.add('hidden');
-          if (data.success && Array.isArray(data.history)) {
-            if (data.history.length === 0) {
-              addMessageToChat('assistant', "Bonjour ! Je suis Mariam, votre assistant IA. Comment puis-je vous aider aujourd'hui ?", true);
-            } else {
-              data.history.forEach(message => {
-                const isAssistantHtml = message.role === 'assistant';
-                addMessageToChat(message.role, message.text, isAssistantHtml);
-              });
             }
-            scrollToBottom(false);
-          } else {
-            throw new Error(data.error || "Format de réponse invalide pour l'historique.");
-          }
-        } catch (error) {
-          displayError(`Impossible de charger l'historique: ${error.message}`);
-          if (chatMessages.querySelectorAll(':scope > *:not(#loading-indicator):not(#history-loading)').length === 0) {
-            addMessageToChat('assistant', "Bonjour ! Je suis Mariam. Je n'ai pas pu charger notre conversation précédente. Comment puis-je vous aider ?", true);
-          }
-        } finally {
-          historyLoadingIndicator.remove();
-          promptInput.focus();
-          adjustTextareaHeight(promptInput);
         }
-      }
-      // Gestion des fichiers
-      function clearFileInput() {
-        fileUpload.value = '';
-        fileChip.classList.add('hidden');
-        fileNameSpan.textContent = '';
-        fileNameSpan.title = '';
-        filePreview.innerHTML = '';
-        filePreview.classList.add('hidden');
-        previewArea.classList.add('hidden');
-      }
-      fileUpload.addEventListener('change', () => {
-        if (fileUpload.files.length > 0) {
-          const file = fileUpload.files[0];
-          const name = file.name;
-          fileNameSpan.textContent = name;
-          fileNameSpan.title = name;
-          fileChip.classList.remove('hidden');
-          filePreview.innerHTML = '';
-          if (file.type.startsWith('image/')) {
-            const reader = new FileReader();
-            reader.onload = (e) => {
-              filePreview.innerHTML = `
-                <div class="file-preview">
-                  <img src="${e.target.result}" alt="Prévisualisation: ${escapeHtml(name)}">
-                </div>`;
-              filePreview.classList.remove('hidden');
-              previewArea.classList.remove('hidden');
-            };
-            reader.onerror = () => {
-              filePreview.innerHTML = `<p class="text-red-500 text-xs text-center p-2">Erreur lecture image</p>`;
-              filePreview.classList.remove('hidden');
-              previewArea.classList.remove('hidden');
-            };
-            reader.readAsDataURL(file);
-          } else {
-            filePreview.innerHTML = `
-              <div class="flex items-center justify-center p-3">
-                <div class="bg-gray-100 dark:bg-gray-800 p-3 rounded-lg text-center">
-                  <i class="fa-solid ${getFileIcon(file.type)} text-3xl text-gray-500 dark:text-gray-400 mb-2"></i>
-                  <p class="text-xs text-gray-500 dark:text-gray-400">${formatFileSize(file.size)}</p>
                 </div>
-              </div>`;
-            filePreview.classList.remove('hidden');
-            previewArea.classList.remove('hidden');
-          }
-        } else {
-          clearFileInput();
         }
-      });
-      function getFileIcon(fileType) {
-        if (!fileType) return 'fa-file';
-        if (fileType.includes('pdf')) return 'fa-file-pdf';
-        if (fileType.includes('text')) return 'fa-file-lines';
-        return 'fa-file';
-      }
-      function formatFileSize(bytes) {
-        if (bytes === 0) return '0 octets';
-        const k = 1024;
-        const sizes = ['octets', 'Ko', 'Mo', 'Go', 'To'];
-        const i = Math.floor(Math.log(bytes) / Math.log(k));
-        return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + ' ' + sizes[i];
-      }
-      clearFileButton.addEventListener('click', clearFileInput);
-      // Événements pour le textarea
-      promptInput.addEventListener('input', () => {
-        adjustTextareaHeight(promptInput);
-      });
-      promptInput.addEventListener('keydown', (e) => {
-        if (isComposing) return;
-        const isMobile = window.innerWidth < MOBILE_BREAKPOINT;
-        if (e.key === 'Enter') {
-          if (isMobile && !e.shiftKey) {
-            setTimeout(() => adjustTextareaHeight(promptInput), 0);
-          } else if (!isMobile && !e.shiftKey) {
-            e.preventDefault();
-            if (!sendButton.disabled && (promptInput.value.trim() || fileUpload.files.length > 0)) {
-              chatForm.dispatchEvent(new Event('submit', { bubbles: true, cancelable: true }));
-            }
-          } else if (e.shiftKey) {
-            setTimeout(() => adjustTextareaHeight(promptInput), 0);
-            if (isMobile) {
-              e.preventDefault();
-              if (!sendButton.disabled && (promptInput.value.trim() || fileUpload.files.length > 0)) {
-                chatForm.dispatchEvent(new Event('submit', { bubbles: true, cancelable: true }));
-              }
             }
-          }
         }
-      });
-      promptInput.addEventListener('compositionstart', () => { isComposing = true; });
-      promptInput.addEventListener('compositionend', () => {
-        isComposing = false;
-        setTimeout(() => adjustTextareaHeight(promptInput), 0);
-      });
-      adjustTextareaHeight(promptInput);
-      // Soumission du formulaire
-      chatForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        const prompt = promptInput.value.trim();
-        const file = fileUpload.files[0];
-        const useWebSearch = webSearchToggle.checked;
-        const useAdvanced = advancedToggle.checked;
-        if (sendButton.disabled) return;
-        if (!prompt && !file) {
-          promptInput.focus();
-          return;
-        }
-        errorMessageDiv.classList.add('hidden');
-        if (useAdvanced) {
-          const now = Date.now();
-          if (advancedToggleCooldownEndTime > 0 && now < advancedToggleCooldownEndTime) {
-            const remainingSeconds = Math.ceil((advancedToggleCooldownEndTime - now) / 1000);
-            displayError(`Le raisonnement avancé est disponible dans ${remainingSeconds} seconde(s).`);
-            return;
-          }
-        }
-        let userMessageText = prompt;
-        if (file && file.name) {
-          userMessageText = prompt ? `${prompt}\n[Fichier: ${file.name}]` : `[Fichier joint: ${file.name}]`;
-        }
-        addMessageToChat('user', userMessageText);
-        const formData = new FormData();
-        formData.append('prompt', prompt);
-        formData.append('web_search', useWebSearch);
-        formData.append('advanced_reasoning', useAdvanced);
-        if (file) {
-          formData.append('file', file);
-        }
-        promptInput.value = '';
-        adjustTextareaHeight(promptInput);
-        clearFileInput();
-        if (useAdvanced) {
-          startAdvancedCooldownTimer();
-          advancedToggle.checked = false;
-        }
-        webSearchToggle.checked = false;
-        showLoading(true);
-        try {
-          const response = await fetch(API_CHAT_ENDPOINT, { method: 'POST', body: formData });
-          const data = await response.json();
-          if (!response.ok) {
-            throw new Error(data.error || `Erreur serveur: ${response.status} ${response.statusText}`);
-          }
-          if (data.success && data.message) {
-            addMessageToChat('assistant', data.message, true);
-          } else {
-            throw new Error(data.error || "Réponse invalide ou vide du serveur.");
-          }
-        } catch (error) {
-          console.error("Chat Error:", error);
-          addMessageToChat('assistant', `<p class="text-red-600 dark:text-red-400">Désolé, une erreur est survenue :<br>${escapeHtml(error.message)}</p>`, true);
-        } finally {
-          showLoading(false);
-          promptInput.focus();
-        }
-      });
-      // Effacement de la conversation
-      clearForm.addEventListener('submit', async (e) => {
-        e.preventDefault();
-        const confirmDialog = document.createElement('div');
-        confirmDialog.className = 'fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4';
-        confirmDialog.innerHTML = `
-          <div class="bg-white dark:bg-gray-800 p-6 rounded-lg shadow-xl max-w-sm w-full animate-[message-fade-in_0.2s_ease-out]">
-            <h3 class="text-lg font-semibold mb-3 text-gray-900 dark:text-gray-100">Confirmer l'effacement</h3>
-            <p class="text-sm text-gray-600 dark:text-gray-300 mb-5">Êtes-vous sûr de vouloir effacer toute la conversation ? Cette action est irréversible.</p>
-            <div class="flex justify-end space-x-3">
-              <button type="button" id="cancel-clear" class="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 bg-gray-100 dark:bg-gray-700 rounded hover:bg-gray-200 dark:hover:bg-gray-600 transition-colors focus:outline-none focus:ring-2 focus:ring-gray-400">
-                Annuler
-              </button>
-              <button type="button" id="confirm-clear" class="px-4 py-2 text-sm font-medium text-white bg-red-600 rounded hover:bg-red-700 transition-colors focus:outline-none focus:ring-2 focus:ring-red-500">
-                Effacer
-              </button>
-            </div>
-          </div>
-        `;
-        const closeModal = () => {
-          if (document.body.contains(confirmDialog)) {
-            document.body.removeChild(confirmDialog);
-            document.body.style.overflow = '';
-          }
-        };
-        confirmDialog.querySelector('#cancel-clear').addEventListener('click', closeModal);
-        confirmDialog.querySelector('#confirm-clear').addEventListener('click', async () => {
-          closeModal();
-          const clearButton = e.target.querySelector('button[type="submit"]');
-          const originalButtonContent = clearButton.innerHTML;
-          clearButton.disabled = true;
-          clearButton.innerHTML = '<i class="fa-solid fa-spinner fa-spin mr-1.5"></i><span class="hidden sm:inline">Effacement...</span>';
-          try {
-            const response = await fetch(CLEAR_ENDPOINT, {
-              method: 'POST',
-              headers: {
-                'X-Requested-With': 'XMLHttpRequest'
-              }
-            });
-            const data = await response.json();
-            if (response.ok && data.success) {
-              const messagesToRemove = chatMessages.querySelectorAll(':scope > *:not(#loading-indicator)');
-              messagesToRemove.forEach(el => el.remove());
-              addMessageToChat('assistant', "Conversation effacée. Comment puis-je vous aider maintenant ?", true);
-              errorMessageDiv.classList.add('hidden');
             } else {
-              throw new Error(data.error || "Impossible d'effacer la conversation.");
             }
-          } catch (error) {
-            console.error("Clear Error:", error);
-            displayError(`Erreur lors de l'effacement: ${error.message}`);
-          } finally {
-            clearButton.innerHTML = originalButtonContent;
-            clearButton.disabled = false;
-            promptInput.focus();
-          }
-        });
-        document.body.appendChild(confirmDialog);
-        document.body.style.overflow = 'hidden';
-        confirmDialog.querySelector('#cancel-clear').focus();
-      });
-      // Initialisation
-      loadChatHistory();
-      // Observer pour les tableaux Markdown
-      const observeMarkdownTables = () => {
-        const observer = new MutationObserver(mutations => {
-          mutations.forEach(mutation => {
-            if (mutation.addedNodes.length) {
-              mutation.addedNodes.forEach(node => {
-                if (node.nodeType === 1) {
-                  const tables = node.matches('.prose table') ? [node] : node.querySelectorAll('.prose table');
-                  tables.forEach(table => {
-                    if (!table.closest('.table-wrapper')) {
-                      const wrapper = document.createElement('div');
-                      wrapper.className = 'table-wrapper';
-                      table.parentNode.insertBefore(wrapper, table);
-                      wrapper.appendChild(table);
-                    }
-                  });
                 }
-              });
             }
-          });
-        });
-        observer.observe(chatMessages, { childList: true, subtree: true });
-      };
-      observeMarkdownTables();
-      // Gestion du changement de thème selon le système
-      const prefersDarkScheme = window.matchMedia('(prefers-color-scheme: dark)');
-      const handleSchemeChange = (e) => {
-        if (!localStorage.getItem('theme')) {
-          if (e.matches) {
-            document.documentElement.classList.add('dark');
-          } else {
-            document.documentElement.classList.remove('dark');
-          }
         }
-      };
-      prefersDarkScheme.addEventListener('change', handleSchemeChange);
-    });
-  </script>
 </body>
-</html>

 <!DOCTYPE html>
 <html lang="fr">
 <head>
+    <meta charset="UTF-8">
+    <!-- Méta-données pour une optimisation mobile profonde -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <title>Gemini AI - Universe UI</title>
+    <style>
+        :root {
+            --bg-deep-space: #0a041c;
+            --bg-glass: rgba(18, 12, 44, 0.5);
+            --primary-glow: #00f7ff;
+            --secondary-glow: #be29ec;
+            --text-color: #e0e0e0;
+            --border-color: rgba(0, 247, 255, 0.2);
+            --safe-area-top: env(safe-area-inset-top, 0px);
+            --safe-area-bottom: env(safe-area-inset-bottom, 0px);
         }
+        /* --- RESET ET CONFIGURATION GLOBALE --- */
+        * { margin: 0; padding: 0; box-sizing: border-box; }
+        html { scroll-behavior: smooth; }
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+            background-color: var(--bg-deep-space);
+            color: var(--text-color);
+            min-height: 100vh;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            padding: 0;
+            /* Fond étoilé subtil et performant */
+            background-image:
+                radial-gradient(white, rgba(255,255,255,0) 1px, transparent 20px),
+                radial-gradient(white, rgba(255,255,255,0) 1px, transparent 30px),
+                radial-gradient(white, rgba(255,255,255,0.2) 1px, transparent 20px);
+            background-size: 550px 550px, 350px 350px, 250px 250px;
+            background-position: 0 0, 40px 60px, 130px 270px;
         }
+        /* --- CONTENEUR PRINCIPAL DU CHAT --- */
+        .chat-container {
+            width: 100%;
+            max-width: 800px;
+            height: 100vh;
+            background-color: transparent;
+            display: flex;
+            flex-direction: column;
+            overflow: hidden;
+        }
+        /* --- EN-TÊTE --- */
+        .header {
+            background-color: var(--bg-glass);
+            backdrop-filter: blur(10px);
+            padding: 20px 20px 15px;
+            text-align: center;
+            border-bottom: 1px solid var(--border-color);
+            flex-shrink: 0;
+            padding-top: calc(20px + var(--safe-area-top)); /* Sécurité pour encoche */
+        }
+        .header h1 {
+            font-size: 22px;
+            font-weight: 600;
+            color: var(--primary-glow);
+            text-shadow: 0 0 8px rgba(0, 247, 255, 0.5);
+            margin-bottom: 5px;
         }
+        /* --- ZONE DES MESSAGES --- */
+        .messages {
+            flex: 1;
+            overflow-y: auto;
+            padding: 20px 15px;
+            display: flex;
+            flex-direction: column;
+            gap: 15px;
         }
+        .message {
+            max-width: 85%;
+            padding: 12px 18px;
+            border-radius: 18px;
+            font-size: 16px;
+            line-height: 1.5;
+            animation: fadeIn 0.4s ease-out;
+            border: 1px solid;
+            background-color: rgba(10, 4, 28, 0.6);
+        }
+        .message.user {
+            color: var(--text-color);
+            align-self: flex-end;
+            border-bottom-right-radius: 4px;
+            border-color: var(--primary-glow);
+            box-shadow: 0 0 15px rgba(0, 247, 255, 0.15);
+        }
+        .message.assistant {
+            color: var(--text-color);
+            align-self: flex-start;
+            border-bottom-left-radius: 4px;
+            border-color: var(--secondary-glow);
+            box-shadow: 0 0 15px rgba(190, 41, 236, 0.15);
         }
+        .message ul { margin-top: 10px; padding-left: 20px; }
+        .message strong { color: var(--primary-glow); font-weight: 600; }
+        .message code { background: rgba(0,0,0,0.3); padding: 2px 5px; border-radius: 4px; }
+        /* --- ZONE DE SAISIE --- */
+        .input-container {
+            background-color: var(--bg-glass);
+            backdrop-filter: blur(10px);
+            padding: 15px;
+            border-top: 1px solid var(--border-color);
+            flex-shrink: 0;
+            padding-bottom: calc(15px + var(--safe-area-bottom)); /* Sécurité pour barre de gestes */
+        }
+        /* VISUALISATION D'IMAGE */
+        .file-preview { margin-bottom: 10px; display: none; }
+        .image-preview-wrapper {
+            position: relative;
+            display: inline-block;
+        }
+        .image-preview-wrapper img {
+            max-height: 80px;
+            border-radius: 8px;
+            border: 1px solid var(--border-color);
+        }
+        .remove-file-btn {
+            position: absolute;
+            top: -8px;
+            right: -8px;
+            background: #000;
+            color: var(--primary-glow);
+            border: 1px solid var(--primary-glow);
+            border-radius: 50%;
+            width: 24px;
+            height: 24px;
+            cursor: pointer;
+            font-size: 14px;
+            display: flex;
+            align-items: center;
+            justify-content: center;
         }
+        .input-row { display: flex; gap: 10px; align-items: flex-end; }
+        .input-wrapper { flex: 1; position: relative; }
+        .message-input {
+            width: 100%;
+            min-height: 48px;
+            padding: 12px 55px 12px 20px;
+            border: 1px solid var(--border-color);
+            border-radius: 24px;
+            font-size: 16px;
+            resize: none;
+            outline: none;
+            transition: border-color 0.2s ease, box-shadow 0.2s ease;
+            font-family: inherit;
+            background-color: var(--bg-deep-space);
+            color: var(--text-color);
+        }
+        .message-input::placeholder { color: #888; }
+        .message-input:focus {
+            border-color: var(--primary-glow);
+            box-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
+        }
+        .action-button {
+            background: transparent;
+            border: 1px solid var(--border-color);
+            color: var(--primary-glow);
+            height: 48px;
+            width: 48px;
+            border-radius: 50%;
+            cursor: pointer;
+            font-size: 20px;
+            transition: all 0.2s ease;
+            flex-shrink: 0;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+        }
+        .action-button:hover:not(:disabled) {
+            border-color: var(--primary-glow);
+            background-color: rgba(0, 247, 255, 0.1);
+            box-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
+        }
+        .send-button {
+            position: absolute;
+            right: 4px;
+            top: 50%;
+            transform: translateY(-50%);
+            width: 40px;
+            height: 40px;
+            border: none;
+            background: transparent;
+        }
+        .send-button:disabled { color: #555; cursor: not-allowed; }
+        /* --- INDICATEUR DE FRAPPE --- */
+        .typing-indicator {
+            display: none; align-items: center; gap: 8px;
+            color: var(--secondary-glow); padding: 0 15px 10px; font-style: italic;
+        }
+        .typing-dots span {
+            width: 8px; height: 8px; border-radius: 50%;
+            background: var(--secondary-glow);
+            animation: typing 1.4s infinite ease-in-out;
+            box-shadow: 0 0 8px var(--secondary-glow);
+        }
+        .typing-dots span:nth-child(1) { animation-delay: 0s; }
+        .typing-dots span:nth-child(2) { animation-delay: 0.2s; }
+        .typing-dots span:nth-child(3) { animation-delay: 0.4s; }
+        /* --- ANIMATIONS --- */
+        @keyframes typing {
+            0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
+            30% { transform: translateY(-4px); opacity: 1; }
+        }
+        @keyframes fadeIn {
+            from { opacity: 0; transform: translateY(10px); }
+            to { opacity: 1; transform: translateY(0); }
+        }
+        /* --- MEDIA QUERIES pour DESKTOP --- */
+        @media (min-width: 768px) {
+            body { padding: 20px; }
+            .chat-container {
+                height: 90vh;
+                border-radius: 12px;
+                border: 1px solid var(--border-color);
             }
         }
+    </style>
+</head>
+<body>
+    <div class="chat-container">
+        <div class="header">
+            <h1>🤖 Gemini Universe</h1>
+        </div>
+        <div class="messages" id="messages">
+             <div class="message assistant">
+                <div>👋 Bonjour ! Je suis votre assistant IA Gemini.</div>
+                <div style="margin-top: 10px;">Posez votre question pour commencer une nouvelle exploration.</div>
+            </div>
+        </div>
+        <div class="typing-indicator" id="typingIndicator">
+            <span>Connexion en cours...</span>
+            <div class="typing-dots"><span></span><span></span><span></span></div>
+        </div>
+        <div class="input-container">
+            <div class="file-preview" id="filePreview"></div>
+            <div class="input-row">
+                <input type="file" id="fileInput" class="file-input" hidden accept="image/*,video/*,.pdf,.txt,.csv,.json" onchange="handleFileSelect(event)">
+                <button class="action-button" onclick="document.getElementById('fileInput').click()" title="Joindre un fichier">📎</button>
+                <div class="input-wrapper">
+                    <textarea id="messageInput" class="message-input" placeholder="Envoyer un message..." rows="1" onkeydown="handleKeyDown(event)" oninput="autoResize(this)"></textarea>
+                    <button class="action-button send-button" id="sendButton" onclick="sendMessage()" title="Envoyer">➤</button>
                 </div>
+            </div>
+        </div>
+    </div>
+    <!-- SCRIPT FONCTIONNEL AVEC PRÉVISUALISATION D'IMAGE -->
+    <script>
+        let currentFile = null;
+        let conversationId = 'session_' + Date.now();
+        function autoResize(textarea) {
+            textarea.style.height = 'auto';
+            textarea.style.height = Math.min(textarea.scrollHeight, 150) + 'px';
         }
+        function handleKeyDown(event) {
+            if (event.key === 'Enter' && !event.shiftKey) {
+                event.preventDefault();
+                sendMessage();
             }
         }
+        function handleFileSelect(event) {
+            const file = event.target.files[0];
+            if (!file) return;
+            const filePreview = document.getElementById('filePreview');
+            // Afficher une miniature pour les images
+            if (file.type.startsWith('image/')) {
+                const reader = new FileReader();
+                reader.onload = function(e) {
+                    filePreview.innerHTML = `
+                        <div class="image-preview-wrapper">
+                            <img src="${e.target.result}" alt="Aperçu du fichier">
+                            <button class="remove-file-btn" onclick="removeFile()">✕</button>
+                        </div>
+                    `;
+                    filePreview.style.display = 'block';
+                }
+                reader.readAsDataURL(file);
             } else {
+                // Afficher le nom du fichier pour les autres types
+                filePreview.innerHTML = `
+                    <div class="image-preview-wrapper">
+                        <span>📎 ${file.name}</span>
+                        <button class="remove-file-btn" onclick="removeFile()">✕</button>
+                    </div>
+                `;
+                filePreview.style.display = 'block';
             }
+            // Envoyer le fichier au backend
+            const formData = new FormData();
+            formData.append('file', file);
+            fetch('/upload', { method: 'POST', body: formData })
+            .then(response => response.json())
+            .then(data => {
+                if (data.success) {
+                    currentFile = data;
+                } else {
+                    showError('Erreur lors du téléchargement: ' + data.error);
+                    removeFile();
                 }
+            })
+            .catch(error => {
+                showError('Erreur réseau lors du téléchargement: ' + error.message);
+                removeFile();
+            });
+        }
+        function removeFile() {
+            currentFile = null;
+            document.getElementById('filePreview').style.display = 'none';
+            document.getElementById('filePreview').innerHTML = '';
+            document.getElementById('fileInput').value = '';
+        }
+        function sendMessage() {
+            const messageInput = document.getElementById('messageInput');
+            const message = messageInput.value.trim();
+            if (!message && !currentFile) return;
+            addMessage('user', message);
+            const typingIndicator = document.getElementById('typingIndicator');
+            typingIndicator.style.display = 'flex';
+            messageInput.value = '';
+            autoResize(messageInput);
+            messageInput.disabled = true;
+            document.getElementById('sendButton').disabled = true;
+            const endpoint = currentFile ? '/chat_with_file' : '/chat';
+            const payload = {
+                message: message || 'Analyse ce fichier',
+                conversation_id: conversationId
+            };
+            if (currentFile) {
+                payload.file_data = currentFile;
             }
+            fetch(endpoint, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify(payload)
+            })
+            .then(response => {
+                if (!response.ok) throw new Error(`Erreur réseau: ${response.status}`);
+                const reader = response.body.getReader();
+                const decoder = new TextDecoder();
+                let buffer = '';
+                let messageElement = addMessage('assistant', '');
+                function processStream() {
+                    return reader.read().then(({ done, value }) => {
+                        if (done) {
+                            typingIndicator.style.display = 'none';
+                            messageInput.disabled = false;
+                            document.getElementById('sendButton').disabled = false;
+                            messageInput.focus();
+                            removeFile();
+                            return;
+                        }
+                        buffer += decoder.decode(value, { stream: true });
+                        // Remplacer le contenu de l'élément au lieu d'ajouter pour un rendu plus fluide
+                        messageElement.innerHTML = formatMessage(buffer);
+                        const messagesContainer = document.getElementById('messages');
+                        messagesContainer.scrollTop = messagesContainer.scrollHeight;
+                        return processStream();
+                    });
+                }
+                return processStream();
+            })
+            .catch(error => {
+                typingIndicator.style.display = 'none';
+                messageInput.disabled = false;
+                document.getElementById('sendButton').disabled = false;
+                addMessage('assistant', `Désolé, une erreur est survenue : ${error.message}`);
+                messageInput.focus();
+            });
+        }
+        function addMessage(role, content) {
+            const messagesContainer = document.getElementById('messages');
+            const messageDiv = document.createElement('div');
+            messageDiv.className = `message ${role}`;
+            messageDiv.innerHTML = formatMessage(content);
+            messagesContainer.appendChild(messageDiv);
+            messagesContainer.scrollTop = messagesContainer.scrollHeight;
+            return messageDiv;
+        }
+        function formatMessage(content) {
+            // Échapper le HTML pour la sécurité
+            let escapedContent = content.replace(/</g, "&lt;").replace(/>/g, "&gt;");
+            // Appliquer le formatage Markdown
+            return escapedContent
+                .replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>')
+                .replace(/\*(.*?)\*/g, '<em>$1</em>')
+                .replace(/`(.*?)`/g, '<code>$1</code>')
+                .replace(/\n/g, '<br>');
         }
+    </script>
 </body>
+</html>