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Docfile commited on Apr 4

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c7c58b1

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1 Parent(s): 12c36e4

Update templates/index.html

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templates/index.html +912 -272

templates/index.html CHANGED Viewed

@@ -3,218 +3,658 @@
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>Mariam AI!</title>
-  <!-- Tailwind CSS via CDN (inclut le plugin Forms) -->
-  <script src="https://cdn.tailwindcss.com?plugins=forms"></script>
-  <!-- Favicon (Emoji simple) -->
-  <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>">
   <style>
-    html, body {
-      min-height: 100vh;
-      margin: 0;
-      padding: 0;
     }
     body {
-      display: flex;
-      flex-direction: column;
-      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
     }
-    #chat-container {
-      display: flex;
-      flex-direction: column;
-      flex-grow: 1;
-      min-height: 0;
-    }
-    #chat-messages {
-      flex-grow: 1;
-      overflow-y: auto;
-      min-height: 0;
     }
     ::-webkit-scrollbar {
-      width: 8px;
     }
     ::-webkit-scrollbar-track {
-      background: #f1f1f1;
-      border-radius: 10px;
     }
     ::-webkit-scrollbar-thumb {
-      background: #a8a8a8;
-      border-radius: 10px;
     }
     ::-webkit-scrollbar-thumb:hover {
-      background: #7a7a7a;
-    }
-    /* Styles pour le rendu Markdown dans le chat */
-    #chat-messages .prose code:not(pre code) {
-      background-color: #e5e7eb;
-      padding: 0.2em 0.4em;
-      font-size: 85%;
-      border-radius: 4px;
-      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
-    }
-    #chat-messages .prose pre {
-      background-color: #f3f4f6;
-      padding: 0.8em 1em;
-      border-radius: 6px;
-      overflow-x: auto;
-      font-size: 0.875rem;
     }
-    #chat-messages .prose pre code {
-      background-color: transparent;
-      padding: 0;
-      font-size: inherit;
-      border-radius: 0;
-      color: inherit;
     }
-    #chat-messages .prose blockquote {
-      border-left-color: #9ca3af;
-      color: #4b5563;
     }
-    #chat-messages .prose strong {
-      color: #1f2937;
     }
-    #chat-messages .prose a {
-      color: #2563eb;
-      text-decoration: underline;
-      text-decoration-color: #93c5fd;
-      transition: color 0.2s ease;
     }
-    #chat-messages .prose a:hover {
-      color: #1d4ed8;
-      text-decoration-color: #60a5fa;
     }
-    #history-loading {
-      padding: 20px;
       text-align: center;
-      color: #6b7280;
-      font-style: italic;
     }
-    /* Zone de prévisualisation des images */
-    #file-preview {
-      margin-top: 8px;
     }
-    #file-preview img {
-      max-width: 100%;
-      max-height: 150px;
-      border: 1px solid #ddd;
-      border-radius: 4px;
-      padding: 4px;
     }
-    /* Bouton de copie (positionné en haut à droite de la bulle de réponse) */
     .copy-btn {
       position: absolute;
-      top: 4px;
-      right: 4px;
-      background: rgba(255, 255, 255, 0.8);
-      border: none;
-      border-radius: 4px;
-      padding: 2px 4px;
-      cursor: pointer;
-      font-size: 0.75rem;
-      display: none;
     }
-    /* Afficher le bouton au survol de la bulle */
-    .message-wrapper:hover .copy-btn {
       display: block;
     }
   </style>
 </head>
-<body class="bg-gray-100 flex flex-col min-h-screen">
-  <!-- En-tête fixe -->
-  <header class="bg-gradient-to-r from-cyan-500 to-blue-500 text-white p-3 sm:p-4 shadow-md flex justify-between items-center sticky top-0 z-10 flex-shrink-0">
-    <h1 class="text-xl sm:text-2xl font-bold">Mariam AI!</h1>
-    <form action="/clear" method="POST" id="clear-form">
-      <button type="submit" title="Effacer la conversation actuelle" class="bg-red-500 hover:bg-red-600 text-white text-xs font-semibold py-1 px-3 rounded-full transition duration-200 focus:outline-none focus:ring-2 focus:ring-red-400 focus:ring-opacity-75">
-        Effacer
-      </button>
-    </form>
   </header>
-  <!-- Conteneur Principal du Chat -->
-  <div id="chat-container" class="max-w-4xl w-full mx-auto bg-white shadow-xl rounded-b-lg flex flex-col flex-grow">
-    <!-- Zone d'affichage des messages -->
-    <div id="chat-messages" class="flex-grow overflow-y-auto p-4 sm:p-6 space-y-4 scroll-smooth">
-      <div id="history-loading">
-        <div class="flex justify-center items-center space-x-2">
-          <svg class="animate-spin h-5 w-5 text-blue-500" xmlns="http://www.w3.org/2000/svg" fill="none" 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 l'historique...</span>
         </div>
       </div>
-      <div id="loading-indicator" class="text-center text-gray-500 italic py-4" style="display: none;">
-        <div class="flex justify-center items-center space-x-2">
-          <svg class="animate-spin h-5 w-5 text-blue-500" xmlns="http://www.w3.org/2000/svg" fill="none" 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>Mariam réfléchit...</span>
         </div>
       </div>
-    </div>
-    <!-- Zone d'erreur -->
-    <div id="error-message" class="bg-red-100 border-l-4 border-red-500 text-red-700 px-4 py-2 rounded mx-4 my-2 flex-shrink-0" role="alert" style="display: none;">
-      <p class="font-bold mr-2">Erreur:</p>
-      <p id="error-text">Le message d'erreur détaillé ira ici.</p>
-    </div>
-    <!-- Barre d'options, d'upload et de prévisualisation -->
-    <div class="bg-gray-50 border-t border-gray-200 px-4 py-2 flex-shrink-0">
-      <div class="flex items-center justify-between text-sm">
-        <label for="web_search_toggle" class="flex items-center space-x-2 cursor-pointer text-gray-600 hover:text-gray-800 select-none" title="Activer/Désactiver la recherche web pour le prochain message">
-          <input type="checkbox" id="web_search_toggle" name="web_search" value="true" class="form-checkbox h-4 w-4 rounded text-blue-600 focus:ring-blue-500 focus:ring-offset-0 border-gray-300">
-          <span class="hidden sm:inline">Recherche Web</span>
-          <span class="sm:hidden">Web</span>
-        </label>
-        <label for="advanced_reasoning_toggle" class="flex items-center space-x-2 cursor-pointer text-purple-600 hover:text-purple-800 select-none" title="Utiliser le raisonnement avancé Pro - 1 fois/min)">
-          <input type="checkbox" id="advanced_reasoning_toggle" name="advanced_reasoning" value="true" class="form-checkbox h-4 w-4 rounded text-purple-600 focus:ring-purple-500 focus:ring-offset-0 border-gray-300">
-          <span class="hidden sm:inline">Raisonnement Avancé</span>
-          <span class="sm:hidden">Avancé</span>
-          <span id="advanced-cooldown-timer" class="text-xs text-gray-500 ml-1" style="display: none;"></span>
-        </label>
-        <div class="flex items-center space-x-2">
-          <label for="file_upload" class="cursor-pointer text-blue-600 hover:text-blue-700 font-medium flex items-center" title="Joindre un fichier (txt, pdf, png, jpg)">
-            <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 mr-1" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
-              <path stroke-linecap="round" stroke-linejoin="round" d="M15.172 7l-6.586 6.586a2 2 0 102.828 2.828l6.414-6.586a4 4 0 00-5.656-5.656l-6.415 6.585a6 6 0 108.486 8.486L20.5 13" />
-            </svg>
-            <span class="hidden sm:inline">Fichier</span>
             <input type="file" id="file_upload" name="file" class="hidden" accept=".txt,.pdf,.png,.jpg,.jpeg">
           </label>
-          <span id="file-name" class="text-gray-500 text-xs truncate max-w-[150px]" title=""></span>
-          <button id="clear-file" class="text-red-500 hover:text-red-700 text-xs p-0.5 rounded focus:outline-none focus:ring-1 focus:ring-red-400" title="Retirer le fichier" style="display: none;">
-            <svg xmlns="http://www.w3.org/2000/svg" class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="3">
-              <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
-            </svg>
-          </button>
         </div>
       </div>
-      <!-- Zone de prévisualisation des images -->
-      <div id="file-preview"></div>
     </div>
-    <!-- Formulaire d'entrée du message -->
-    <form id="chat-form" class="bg-gray-100 p-3 sm:p-4 border-t border-gray-200 rounded-b-lg flex-shrink-0">
-      <div class="flex items-center space-x-2 sm:space-x-3">
-        <input type="text" id="prompt" name="prompt" class="flex-grow form-input px-4 py-2 border border-gray-300 rounded-full focus:outline-none focus:ring-2 focus:ring-blue-400 shadow-sm text-sm sm:text-base" placeholder="Posez votre question à Mariam..." autocomplete="off">
-        <button type="submit" id="send-button" title="Envoyer le message" class="bg-blue-500 hover:bg-blue-600 disabled:opacity-50 disabled:cursor-not-allowed text-white font-bold p-2 rounded-full transition duration-200 flex items-center justify-center shadow-md w-10 h-10 flex-shrink-0 focus:outline-none focus:ring-2 focus:ring-blue-400 focus:ring-opacity-75">
-          <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">
-            <path d="M10.894 2.553a1 1 0 00-1.788 0l-7 14a1 1 0 001.169 1.409l5-1.429A1 1 0 009 15.571V11a1 1 0 112 0v4.571a1 1 0 00.725.962l5 1.428a1 1 0 001.17-1.408l-7-14z" />
-          </svg>
-        </button>
-      </div>
-    </form>
-  </div>
-  <!-- Script JavaScript pour l'interaction -->
   <script>
     document.addEventListener('DOMContentLoaded', () => {
       const chatForm = document.getElementById('chat-form');
       const promptInput = document.getElementById('prompt');
       const chatMessages = document.getElementById('chat-messages');
@@ -222,134 +662,212 @@
       const historyLoadingIndicator = document.getElementById('history-loading');
       const errorMessageDiv = document.getElementById('error-message');
       const errorTextP = document.getElementById('error-text');
       const webSearchToggle = document.getElementById('web_search_toggle');
       const fileUpload = document.getElementById('file_upload');
       const fileNameSpan = document.getElementById('file-name');
       const clearFileButton = document.getElementById('clear-file');
       const filePreview = document.getElementById('file-preview');
       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 API_CHAT_ENDPOINT = '/api/chat';
       const API_HISTORY_ENDPOINT = '/api/history';
       const CLEAR_ENDPOINT = '/clear';
-      function scrollToBottom() {
         setTimeout(() => {
-          chatMessages.scrollTop = chatMessages.scrollHeight;
         }, 50);
       }
-      let advancedToggleCooldownEndTime = 0; // Timestamp when cooldown ends
-      const COOLDOWN_DURATION = 60 * 1000; // 60 seconds in milliseconds
       function showLoading(show) {
-        const currentlyLoading = loadingIndicator.style.display !== 'none';
-        if (show && !currentlyLoading) {
-          loadingIndicator.style.display = 'block';
           chatMessages.appendChild(loadingIndicator);
           scrollToBottom();
-        } else if (!show && currentlyLoading) {
-          loadingIndicator.style.display = 'none';
         }
         sendButton.disabled = show;
         promptInput.disabled = show;
         fileUpload.disabled = show;
         clearFileButton.disabled = show;
-        // Don't disable advanced toggle during loading, only during cooldown
       }
       function displayError(message) {
         errorTextP.textContent = message || "Une erreur inconnue est survenue.";
-        errorMessageDiv.style.display = 'flex';
         errorMessageDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
       }
-      function addMessageToChat(role, text, isHtml = false) {
-        errorMessageDiv.style.display = 'none';
         const messageWrapper = document.createElement('div');
-        messageWrapper.classList.add('message-wrapper', 'flex', role === 'user' ? 'justify-end' : 'justify-start', 'mb-4');
-        const bubbleDiv = document.createElement('div');
-        bubbleDiv.classList.add('p-3', 'rounded-lg', 'max-w-[85%]', 'sm:max-w-[75%]', 'shadow-md', 'relative');
         if (role === 'user') {
-          bubbleDiv.classList.add('bg-blue-500', 'text-white', 'rounded-br-none');
-          const paragraph = document.createElement('p');
-          paragraph.classList.add('text-sm', 'sm:text-base', 'break-words');
-          paragraph.textContent = text;
-          bubbleDiv.appendChild(paragraph);
         } else {
-          bubbleDiv.classList.add('bg-gray-100', 'text-gray-800', 'rounded-bl-none', 'border', 'border-gray-200');
-          const proseDiv = document.createElement('div');
-          proseDiv.classList.add('prose', 'prose-sm', 'sm:prose-base', 'max-w-none', 'text-gray-800', 'prose-headings:font-semibold', 'prose-headings:text-gray-800', 'prose-a:text-blue-600', 'prose-a:no-underline', 'hover:prose-a:underline', 'prose-strong:text-gray-800', 'prose-code:text-red-600', 'prose-code:font-mono', 'prose-blockquote:text-gray-600', 'break-words');
-          if (isHtml) {
-            proseDiv.innerHTML = text;
-          } else {
-            proseDiv.textContent = text;
           }
-          bubbleDiv.appendChild(proseDiv);
-          // Ajout du bouton de copie
-          const copyBtn = document.createElement('button');
-          copyBtn.textContent = 'Copier';
-          copyBtn.classList.add('copy-btn');
-          copyBtn.title = "Copier la réponse";
           copyBtn.addEventListener('click', (e) => {
             e.stopPropagation();
             e.preventDefault();
-            // Copier le texte sans le bouton
-            let textToCopy = '';
-            if (isHtml) {
-              textToCopy = proseDiv.innerText;
-            } else {
-              textToCopy = text;
-            }
-            navigator.clipboard.writeText(textToCopy)
               .then(() => {
-                copyBtn.textContent = 'Copié';
                 setTimeout(() => {
-                  copyBtn.textContent = 'Copier';
                 }, 2000);
-              })
-              .catch(err => {
-                console.error('Erreur lors de la copie :', err);
               });
           });
-          bubbleDiv.appendChild(copyBtn);
         }
-        messageWrapper.appendChild(bubbleDiv);
-        chatMessages.insertBefore(messageWrapper, loadingIndicator);
         if (historyLoadingIndicator.parentNode !== chatMessages) {
           scrollToBottom();
         }
       }
       function startAdvancedCooldownTimer() {
-        advancedToggle.disabled = true; // Disable toggle during cooldown
         advancedToggleCooldownEndTime = Date.now() + COOLDOWN_DURATION;
         const updateTimer = () => {
-            const now = Date.now();
-            if (now >= advancedToggleCooldownEndTime) {
-                clearInterval(intervalId);
-                advancedCooldownTimerSpan.style.display = 'none';
-                advancedToggle.disabled = false;
-                advancedToggleCooldownEndTime = 0; // Reset cooldown end time
-            } else {
-                const remainingSeconds = Math.ceil((advancedToggleCooldownEndTime - now) / 1000);
-                advancedCooldownTimerSpan.textContent = `(${remainingSeconds}s)`;
-                advancedCooldownTimerSpan.style.display = 'inline';
-            }
         };
         const intervalId = setInterval(updateTimer, 1000);
-        updateTimer(); // Initial call to display immediately
       }
       async function loadChatHistory() {
         historyLoadingIndicator.style.display = 'block';
         try {
@@ -359,44 +877,49 @@
             try {
               const errData = await response.json();
               errorMsg = errData.error || errorMsg;
-            } catch (e) { }
             throw new Error(errorMsg);
           }
           const data = await response.json();
           if (data.success && Array.isArray(data.history)) {
             chatMessages.innerHTML = '';
             chatMessages.appendChild(loadingIndicator);
-            loadingIndicator.style.display = 'none';
             if (data.history.length === 0) {
-              addMessageToChat('assistant', "Bonjour ! Comment puis-je vous aider aujourd'hui ?");
             } else {
               data.history.forEach(message => {
                 const isAssistantHtml = message.role === 'assistant';
                 addMessageToChat(message.role, message.text, isAssistantHtml);
               });
             }
-            scrollToBottom();
           } else {
             throw new Error(data.error || "Format de réponse de l'historique invalide.");
           }
         } catch (error) {
           chatMessages.innerHTML = '';
           chatMessages.appendChild(loadingIndicator);
-          loadingIndicator.style.display = 'none';
           displayError(`Impossible de charger l'historique: ${error.message}`);
         } finally {
-          if (historyLoadingIndicator.parentNode === chatMessages) {
-            historyLoadingIndicator.remove();
-          }
           promptInput.focus();
         }
       }
       function clearFileInput() {
         fileUpload.value = '';
-        fileNameSpan.textContent = '';
-        fileNameSpan.title = '';
-        clearFileButton.style.display = 'none';
         filePreview.innerHTML = '';
       }
@@ -404,28 +927,62 @@
         if (fileUpload.files.length > 0) {
           const file = fileUpload.files[0];
           const name = file.name;
-          fileNameSpan.textContent = name.length > 20 ? name.substring(0, 17) + '...' : name;
           fileNameSpan.title = name;
-          clearFileButton.style.display = 'inline-block';
-          // Si le fichier est une image, afficher la prévisualisation
           if (file.type.startsWith('image/')) {
             const reader = new FileReader();
             reader.onload = (e) => {
-              filePreview.innerHTML = `<img src="${e.target.result}" alt="Prévisualisation de l'image">`;
             };
             reader.readAsDataURL(file);
           } else {
-            filePreview.innerHTML = '';
           }
         } else {
           clearFileInput();
         }
       });
       clearFileButton.addEventListener('click', () => {
         clearFileInput();
       });
       chatForm.addEventListener('submit', async (e) => {
         e.preventDefault();
         const prompt = promptInput.value.trim();
@@ -438,52 +995,59 @@
           promptInput.focus();
           return;
         }
-        errorMessageDiv.style.display = 'none';
-        // --- Cooldown Check for Advanced Reasoning ---
         if (useAdvanced) {
-            const now = Date.now();
-            if (now < advancedToggleCooldownEndTime) {
-                const remainingSeconds = Math.ceil((advancedToggleCooldownEndTime - now) / 1000);
-                displayError(`Le raisonnement avancé est disponible dans ${remainingSeconds} seconde(s).`);
-                return; // Stop submission
-            }
-            // If check passes, cooldown will be started AFTER successful submission trigger
         }
-        // --- End Cooldown Check ---
         let userMessageText = prompt;
         if (file && file.name) {
-          userMessageText = prompt ? `[${file.name}] ${prompt}` : `[${file.name}]`;
         }
         addMessageToChat('user', userMessageText);
         const formData = new FormData();
         formData.append('prompt', prompt);
         formData.append('web_search', useWebSearch);
         if (file) {
-            formData.append('file', file);
         }
-        // Add the advanced reasoning flag
         formData.append('advanced_reasoning', useAdvanced);
         showLoading(true);
         promptInput.value = '';
         clearFileInput();
-        // Reset toggles for next message (Web Search stays, Advanced resets and starts cooldown if used)
-        // webSearchToggle.checked = false; // Decide if you want this to reset
-        advancedToggle.checked = false; // Always reset advanced toggle
-        if (useAdvanced) startAdvancedCooldownTimer(); // Start cooldown *now* as we are sending the request
         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}`);
           }
           if (data.success && data.message) {
             addMessageToChat('assistant', data.message, true);
           } else {
@@ -491,19 +1055,51 @@
           }
         } catch (error) {
           displayError(error.message);
-          if (useAdvanced) { /* Maybe revert cooldown if API fails? */ } // Optional: more complex error handling
         } finally {
           showLoading(false);
           promptInput.focus();
         }
       });
       clearForm.addEventListener('submit', async (e) => {
         e.preventDefault();
-        if (confirm("Êtes-vous sûr de vouloir effacer toute la conversation ?")) {
-          const originalButtonText = e.target.querySelector('button').textContent;
-          e.target.querySelector('button').textContent = '...';
           e.target.querySelector('button').disabled = true;
           try {
             const response = await fetch(CLEAR_ENDPOINT, {
               method: 'POST',
@@ -511,27 +1107,71 @@
                 'X-Requested-With': 'XMLHttpRequest'
               }
             });
             const data = await response.json();
             if (response.ok && data.success) {
               chatMessages.innerHTML = '';
               chatMessages.appendChild(loadingIndicator);
-              loadingIndicator.style.display = 'none';
-              addMessageToChat('assistant', "Conversation effacée. Comment puis-je vous aider ?");
-              errorMessageDiv.style.display = 'none';
             } else {
               throw new Error(data.error || "Impossible d'effacer côté serveur.");
             }
           } catch (error) {
             displayError(`Erreur lors de l'effacement du chat: ${error.message}`);
           } finally {
-            e.target.querySelector('button').textContent = originalButtonText;
             e.target.querySelector('button').disabled = false;
             promptInput.focus();
           }
         }
       });
       loadChatHistory();
     });
   </script>
 </body>

 <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>
+    // Configuration avancée de Tailwind
+    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>
+    /* Base styles */
+    html {
+      scroll-behavior: smooth;
     }
     body {
+      font-family: 'Inter', sans-serif;
+      transition: background-color 0.3s ease, color 0.3s ease;
     }
+    /* Layout */
+    .chat-layout {
+      min-height: calc(100vh - 64px);
+      display: grid;
+      grid-template-rows: 1fr auto;
     }
+    /* Scrollbar styling */
     ::-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 bubbles */
+    .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;
     }
+    /* Message bubble arrow */
+    .user-message::after {
+      content: '';
+      position: absolute;
+      bottom: -0.5rem;
+      right: 0.125rem;
+      width: 0.75rem;
+      height: 0.75rem;
+      background: #2563eb;
+      clip-path: polygon(0 0, 100% 0, 100% 100%);
+    }
+    .assistant-message::after {
+      content: '';
+      position: absolute;
+      bottom: -0.5rem;
+      left: 0.125rem;
+      width: 0.75rem;
+      height: 0.75rem;
+      background: #f8fafc;
+      clip-path: polygon(0 0, 100% 0, 0 100%);
+    }
+    .dark .assistant-message::after {
+      background: #1e293b;
+    }
+    /* Animations */
+    @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;
+    }
+    /* Style spécifique pour le mode sombre */
+    .dark body {
+      background-color: #0f172a;
+      color: #e2e8f0;
+    }
+    /* Tooltip custom */
+    .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;
+    }
+    /* Bouton de copie */
     .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 */
+    .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 style */
+    .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;
+    }
+    /* Switch toggle style */
+    .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;
+    }
+    /* Input styling */
+    .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);
+    }
+    /* Code block styling */
+    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 block copy button */
+    .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;
+    }
+    pre:hover .code-copy-btn:hover {
+      opacity: 1;
     }
   </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 & Title -->
+      <div class="flex items-center space-x-2">
+        <span class="text-2xl">✨</span>
+        <h1 class="text-xl font-bold">Mariam AI</h1>
+      </div>
+      <!-- Actions -->
+      <div class="flex items-center space-x-2 sm:space-x-4">
+        <!-- Thème sombre/clair -->
+        <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>
+        <!-- Bouton d'effacement -->
+        <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">
+    <!-- Chat Messages Container -->
+    <section id="chat-messages" class="flex flex-col space-y-6 p-4 overflow-y-auto">
+      <!-- Message de 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 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>
+    <!-- Bottom Container -->
+    <div class="border-t border-gray-200 dark:border-gray-700">
+      <!-- Error Message -->
+      <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>
+      <!-- Preview Area -->
+      <div id="preview-area" class="px-4 py-2 bg-gray-50 dark:bg-gray-800/50 hidden">
+        <!-- File Preview -->
+        <div id="file-preview" class="hidden"></div>
+      </div>
+      <!-- Options Bar -->
+      <div class="flex items-center justify-between px-4 py-2 bg-gray-100 dark:bg-gray-800/80 text-sm text-gray-600 dark:text-gray-300">
+        <!-- Options du chat -->
+        <div class="flex items-center space-x-4">
+          <!-- Web Search Toggle -->
+          <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 pour Mariam</span>
+          </label>
+          <!-- Advanced Reasoning Toggle -->
+          <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">Activer le raisonnement avancé (1 fois/min)</span>
+          </label>
+        </div>
+        <!-- Upload Button -->
+        <div>
+          <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 un fichier (txt, pdf, image)</span>
           </label>
+          <!-- File Chip (apparaît quand un fichier est sélectionné) -->
+          <div id="file-chip" class="chip mt-2 hidden">
+            <i class="fa-solid fa-file chip-icon"></i>
+            <span id="file-name" class="truncate max-w-[120px]"></span>
+            <i id="clear-file" class="fa-solid fa-xmark chip-close"></i>
+          </div>
         </div>
       </div>
+      <!-- Chat Input Form -->
+      <form id="chat-form" class="p-3 sm:p-4 bg-white dark:bg-gray-900">
+        <div class="relative">
+          <input
+            type="text"
+            id="prompt"
+            name="prompt"
+            class="chat-input w-full pl-4 pr-12 py-3 rounded-full border focus:outline-none text-sm sm:text-base"
+            placeholder="Posez votre question à Mariam..."
+            autocomplete="off"
+          >
+          <button
+            type="submit"
+            id="send-button"
+            class="absolute right-2 top-1/2 transform -translate-y-1/2 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"
+            title="Envoyer le message"
+          >
+            <i class="fa-solid fa-paper-plane"></i>
+          </button>
+        </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> pour envoyer • <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> pour une nouvelle ligne
+        </div>
+      </form>
     </div>
+  </main>
+  <!-- Scripts -->
   <script>
     document.addEventListener('DOMContentLoaded', () => {
+      // Elements
       const chatForm = document.getElementById('chat-form');
       const promptInput = document.getElementById('prompt');
       const chatMessages = document.getElementById('chat-messages');
       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');
+      // API endpoints
       const API_CHAT_ENDPOINT = '/api/chat';
       const API_HISTORY_ENDPOINT = '/api/history';
       const CLEAR_ENDPOINT = '/clear';
+      // Constantes
+      const COOLDOWN_DURATION = 60 * 1000; // 60 secondes
+      // Variables
+      let advancedToggleCooldownEndTime = 0;
+      let isComposing = false; // Pour la composition (pour les langues qui utilisent IME)
+      // Thème
+      function initializeTheme() {
+        // Vérifier les préférences locales ou systèmes
+        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();
+      // Fonction de défilement vers le bas
+      function scrollToBottom(smooth = true) {
         setTimeout(() => {
+          chatMessages.scrollTo({
+            top: chatMessages.scrollHeight,
+            behavior: smooth ? 'smooth' : 'auto'
+          });
         }, 50);
       }
+      // Gestion du 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;
         clearFileButton.disabled = show;
       }
+      // Gestion des erreurs
       function displayError(message) {
         errorTextP.textContent = message || "Une erreur inconnue est survenue.";
+        errorMessageDiv.classList.remove('hidden');
         errorMessageDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
       }
+      // Fermer le message d'erreur
+      dismissErrorBtn.addEventListener('click', () => {
+        errorMessageDiv.classList.add('hidden');
+      });
+      // Ajouter un message au chat
+      function addMessageToChat(role, content, isHtml = false) {
+        errorMessageDiv.classList.add('hidden');
         const messageWrapper = document.createElement('div');
+        messageWrapper.classList.add('flex', role === 'user' ? 'justify-end' : 'justify-start');
+        let html = '';
         if (role === 'user') {
+          // Message utilisateur
+          html = `
+            <div class="flex items-start space-x-2 max-w-[85%]">
+              <div class="message-bubble user-message">
+                <p class="text-sm sm:text-base whitespace-pre-wrap break-words">${escapeHtml(content)}</p>
+              </div>
+            </div>
+          `;
         } else {
+          // Message assistant
+          html = `
+            <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">
+                  ${isHtml ? content : escapeHtml(content)}
+                </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 = html;
+        chatMessages.insertBefore(messageWrapper, loadingIndicator);
+        // Activer les boutons de copie pour les blocs de code
+        const preTags = messageWrapper.querySelectorAll('pre');
+        preTags.forEach(pre => {
+          if (!pre.querySelector('.code-copy-btn')) {
+            const codeBtn = document.createElement('button');
+            codeBtn.className = 'code-copy-btn bg-white/90 dark:bg-gray-800/90 text-xs p-1 rounded text-gray-600 dark:text-gray-300';
+            codeBtn.innerHTML = '<i class="fa-regular fa-copy"></i>';
+            codeBtn.title = 'Copier le code';
+            codeBtn.addEventListener('click', () => {
+              const code = pre.querySelector('code')?.innerText || pre.innerText;
+              navigator.clipboard.writeText(code)
+                .then(() => {
+                  codeBtn.innerHTML = '<i class="fa-solid fa-check"></i>';
+                  setTimeout(() => {
+                    codeBtn.innerHTML = '<i class="fa-regular fa-copy"></i>';
+                  }, 2000);
+                });
+            });
+            pre.appendChild(codeBtn);
           }
+        });
+        // Activer les boutons de copie pour les messages
+        const copyBtn = messageWrapper.querySelector('.copy-btn');
+        if (copyBtn) {
           copyBtn.addEventListener('click', (e) => {
             e.stopPropagation();
             e.preventDefault();
+            const textContent = messageWrapper.querySelector('.prose').innerText;
+            navigator.clipboard.writeText(textContent)
               .then(() => {
+                copyBtn.innerHTML = '<i class="fa-solid fa-check mr-1"></i> Copié';
                 setTimeout(() => {
+                  copyBtn.innerHTML = '<i class="fa-regular fa-copy mr-1"></i> Copier';
                 }, 2000);
               });
           });
         }
         if (historyLoadingIndicator.parentNode !== chatMessages) {
           scrollToBottom();
         }
       }
+      // Échappement HTML pour éviter les injections XSS
+      function escapeHtml(unsafe) {
+        return unsafe
+          .replace(/&/g, "&amp;")
+          .replace(/</g, "&lt;")
+          .replace(/>/g, "&gt;")
+          .replace(/"/g, "&quot;")
+          .replace(/'/g, "&#039;");
+      }
+      // Gestion du cooldown du mode avancé
       function startAdvancedCooldownTimer() {
+        advancedToggle.disabled = true;
         advancedToggleCooldownEndTime = Date.now() + COOLDOWN_DURATION;
         const updateTimer = () => {
+          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');
+          }
         };
         const intervalId = setInterval(updateTimer, 1000);
+        updateTimer();
       }
+      // Chargement de l'historique de chat
       async function loadChatHistory() {
         historyLoadingIndicator.style.display = 'block';
         try {
             try {
               const errData = await response.json();
               errorMsg = errData.error || errorMsg;
+            } catch (e) {}
             throw new Error(errorMsg);
           }
           const data = await response.json();
           if (data.success && Array.isArray(data.history)) {
+            // Vider le conteneur et préparer les nouvelles entrées
             chatMessages.innerHTML = '';
             chatMessages.appendChild(loadingIndicator);
+            loadingIndicator.classList.add('hidden');
             if (data.history.length === 0) {
+              // Message d'accueil
+              addMessageToChat('assistant', "Bonjour ! Je suis Mariam, votre assistant IA. Comment puis-je vous aider aujourd'hui ?", true);
             } else {
+              // Afficher l'historique
               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 de l'historique invalide.");
           }
         } catch (error) {
           chatMessages.innerHTML = '';
           chatMessages.appendChild(loadingIndicator);
+          loadingIndicator.classList.add('hidden');
           displayError(`Impossible de charger l'historique: ${error.message}`);
         } finally {
+          historyLoadingIndicator.remove();
           promptInput.focus();
         }
       }
+      // Gestion des fichiers
       function clearFileInput() {
         fileUpload.value = '';
+        fileChip.classList.add('hidden');
+        filePreview.classList.add('hidden');
+        previewArea.classList.add('hidden');
         filePreview.innerHTML = '';
       }
         if (fileUpload.files.length > 0) {
           const file = fileUpload.files[0];
           const name = file.name;
+          // Mettre à jour le chip de fichier
+          fileNameSpan.textContent = name;
           fileNameSpan.title = name;
+          fileChip.classList.remove('hidden');
+          // Si c'est une image, créer une prévisualisation
           if (file.type.startsWith('image/')) {
             const reader = new FileReader();
             reader.onload = (e) => {
+              filePreview.innerHTML = `
+                <div class="file-preview">
+                  <img src="${e.target.result}" alt="Prévisualisation de l'image">
+                </div>
+              `;
+              filePreview.classList.remove('hidden');
+              previewArea.classList.remove('hidden');
             };
             reader.readAsDataURL(file);
           } else {
+            // Afficher une icône pour les autres types de fichiers
+            filePreview.innerHTML = `
+              <div class="flex items-center justify-center py-4">
+                <div class="bg-gray-100 dark:bg-gray-800 p-4 rounded-lg text-center">
+                  <i class="fa-solid ${getFileIcon(file.type)} text-3xl text-gray-600 dark:text-gray-300 mb-2"></i>
+                  <p class="text-sm text-gray-500 dark:text-gray-400">${formatFileSize(file.size)}</p>
+                </div>
+              </div>
+            `;
+            filePreview.classList.remove('hidden');
+            previewArea.classList.remove('hidden');
           }
         } else {
           clearFileInput();
         }
       });
+      // Obtenir l'icône en fonction du type de fichier
+      function getFileIcon(fileType) {
+        if (fileType.includes('pdf')) return 'fa-file-pdf';
+        if (fileType.includes('text')) return 'fa-file-lines';
+        return 'fa-file';
+      }
+      // Formater la taille du fichier
+      function formatFileSize(bytes) {
+        if (bytes < 1024) return bytes + ' octets';
+        if (bytes < 1048576) return (bytes / 1024).toFixed(1) + ' Ko';
+        return (bytes / 1048576).toFixed(1) + ' Mo';
+      }
       clearFileButton.addEventListener('click', () => {
         clearFileInput();
       });
+      // Soumission du formulaire
       chatForm.addEventListener('submit', async (e) => {
         e.preventDefault();
         const prompt = promptInput.value.trim();
           promptInput.focus();
           return;
         }
+        errorMessageDiv.classList.add('hidden');
+        // Vérification du cooldown pour le mode avancé
         if (useAdvanced) {
+          const now = Date.now();
+          if (now < advancedToggleCooldownEndTime) {
+            const remainingSeconds = Math.ceil((advancedToggleCooldownEndTime - now) / 1000);
+            displayError(`Le raisonnement avancé est disponible dans ${remainingSeconds} seconde(s).`);
+            return;
+          }
         }
+        // Construire le message utilisateur
         let userMessageText = prompt;
         if (file && file.name) {
+          userMessageText = prompt ? `${prompt}` : `[Fichier joint: ${file.name}]`;
         }
         addMessageToChat('user', userMessageText);
+        // Préparer les données
         const formData = new FormData();
         formData.append('prompt', prompt);
         formData.append('web_search', useWebSearch);
         if (file) {
+          formData.append('file', file);
         }
         formData.append('advanced_reasoning', useAdvanced);
+        // Afficher le chargement et nettoyer le formulaire
         showLoading(true);
         promptInput.value = '';
         clearFileInput();
+        // Réinitialiser les options
+        advancedToggle.checked = false;
+        if (useAdvanced) startAdvancedCooldownTimer();
         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}`);
           }
           if (data.success && data.message) {
             addMessageToChat('assistant', data.message, true);
           } else {
           }
         } catch (error) {
           displayError(error.message);
         } finally {
           showLoading(false);
           promptInput.focus();
         }
       });
+      // Effacement de la conversation
       clearForm.addEventListener('submit', async (e) => {
         e.preventDefault();
+        // Demander confirmation
+        const confirmDialog = document.createElement('div');
+        confirmDialog.className = 'fixed inset-0 bg-black/50 flex items-center justify-center z-50';
+        confirmDialog.innerHTML = `
+          <div class="bg-white dark:bg-gray-800 p-6 rounded-lg shadow-xl max-w-sm mx-4 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-gray-600 dark:text-gray-300 mb-4">Êtes-vous sûr de vouloir effacer toute la conversation ?</p>
+            <div class="flex justify-end space-x-3">
+              <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">
+                Annuler
+              </button>
+              <button id="confirm-clear" class="px-4 py-2 text-sm font-medium text-white bg-red-500 rounded hover:bg-red-600 transition-colors">
+                Effacer
+              </button>
+            </div>
+          </div>
+        `;
+        document.body.appendChild(confirmDialog);
+        document.body.classList.add('overflow-hidden');
+        // Gérer les boutons
+        document.getElementById('cancel-clear').addEventListener('click', () => {
+          document.body.removeChild(confirmDialog);
+          document.body.classList.remove('overflow-hidden');
+        });
+        document.getElementById('confirm-clear').addEventListener('click', async () => {
+          document.body.removeChild(confirmDialog);
+          document.body.classList.remove('overflow-hidden');
+          const originalButtonText = e.target.querySelector('button').innerHTML;
+          e.target.querySelector('button').innerHTML = '<i class="fa-solid fa-spinner fa-spin"></i>';
           e.target.querySelector('button').disabled = true;
           try {
             const response = await fetch(CLEAR_ENDPOINT, {
               method: 'POST',
                 'X-Requested-With': 'XMLHttpRequest'
               }
             });
             const data = await response.json();
             if (response.ok && data.success) {
               chatMessages.innerHTML = '';
               chatMessages.appendChild(loadingIndicator);
+              loadingIndicator.classList.add('hidden');
+              addMessageToChat('assistant', "Conversation effacée. Comment puis-je vous aider ?", true);
+              errorMessageDiv.classList.add('hidden');
             } else {
               throw new Error(data.error || "Impossible d'effacer côté serveur.");
             }
           } catch (error) {
             displayError(`Erreur lors de l'effacement du chat: ${error.message}`);
           } finally {
+            e.target.querySelector('button').innerHTML = originalButtonText;
             e.target.querySelector('button').disabled = false;
             promptInput.focus();
           }
+        });
+      });
+      // Raccourcis clavier
+      promptInput.addEventListener('keydown', (e) => {
+        // Ignorer pendant la composition IME
+        if (isComposing) return;
+        // Shift+Enter pour nouvelle ligne, Enter pour envoyer
+        if (e.key === 'Enter' && !e.shiftKey) {
+          e.preventDefault();
+          if (!sendButton.disabled) {
+            chatForm.dispatchEvent(new Event('submit'));
+          }
         }
       });
+      // Support IME pour les langues asiatiques
+      promptInput.addEventListener('compositionstart', () => {
+        isComposing = true;
+      });
+      promptInput.addEventListener('compositionend', () => {
+        isComposing = false;
+      });
+      // Démarrer le chargement
       loadChatHistory();
+      // Activer l'ajustement automatique de la hauteur du textarea
+      const resizeInput = () => {
+        // Pour une implémentation future si on change l'input en textarea
+      };
+      // Vérifier les préréglages du navigateur pour le thème sombre
+      const prefersDarkScheme = window.matchMedia('(prefers-color-scheme: dark)');
+      prefersDarkScheme.addEventListener('change', (e) => {
+        if (!localStorage.theme) { // Seulement si l'utilisateur n'a pas explicitement choisi
+          if (e.matches) {
+            document.documentElement.classList.add('dark');
+          } else {
+            document.documentElement.classList.remove('dark');
+          }
+        }
+      });
     });
   </script>
 </body>