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f7de637

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1 Parent(s): 7bde1db

Update templates/index.html

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templates/index.html +773 -330

templates/index.html CHANGED Viewed

@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="fr" class="">
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
@@ -8,10 +8,10 @@
   <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 (Lexend pour le corps, JetBrains Mono pour le code) -->
   <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=Lexend: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>
@@ -20,8 +20,7 @@
       theme: {
         extend: {
           fontFamily: {
-            // Utilisation de la nouvelle police Lexend
-            sans: ['Lexend', 'system-ui', 'sans-serif'],
             mono: ['"JetBrains Mono"', 'monospace']
           },
           colors: {
@@ -29,12 +28,8 @@
             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' }
           },
-          // Ajout d'une animation pour le modal
-          animation: { 'bounce-slow': 'bounce 2s infinite', 'pulse-slow': 'pulse 3s infinite', 'typing': 'typing 1.2s steps(3) infinite', 'dialog-show': 'dialog-show 0.2s ease-out forwards' },
-          keyframes: {
-            typing: { '0%': { width: '0.15em' }, '50%': { width: '0.7em' }, '100%': { width: '0.15em' } },
-            'dialog-show': { from: { opacity: 0, transform: 'scale(0.95)' }, to: { opacity: 1, transform: 'scale(1)' } }
-          }
         }
       }
     }
@@ -42,272 +37,538 @@
   <style>
     html {
       scroll-behavior: smooth;
     }
     body {
-      font-family: 'Lexend', sans-serif;
       transition: background-color 0.3s ease, color 0.3s ease;
-      background-color: #f8fafc;
-      color: #1e293b;
     }
-    .dark body {
-      background-color: #020617; /* Fond plus sombre pour un meilleur contraste */
-      color: #e2e8f0;
     }
-    /* Nouvelle structure de layout pour le chat */
-    .chat-container {
-      display: flex;
-      flex-direction: column;
-      height: 100vh;
-      width: 100%;
     }
-    .chat-messages {
-      flex-grow: 1;
-      overflow-y: auto;
-      padding-bottom: 1rem; /* Espace pour ne pas être collé au composer */
-    }
-    ::-webkit-scrollbar { width: 6px; height: 6px; }
-    ::-webkit-scrollbar-track { background: transparent; }
-    ::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 6px; }
-    .dark ::-webkit-scrollbar-thumb { background: #475569; }
-    ::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
-    .dark ::-webkit-scrollbar-thumb:hover { background: #64748b; }
-    /* Bulles de message améliorées */
     .message-bubble {
       max-width: 85%;
-      border-radius: 1.25rem; /* Coins plus arrondis */
-      padding: 0.75rem 1.125rem;
-      line-height: 1.6;
       animation: message-fade-in 0.3s ease-out;
-      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
       transition: transform 0.2s ease, box-shadow 0.2s ease;
     }
-    .dark .message-bubble { box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15); }
-    .message-wrapper { display: flex; max-width: 100%; gap: 0.75rem; }
-    .user-message-wrapper { justify-content: flex-end; }
     .user-message {
-      background-color: #0ea5e9; /* Couleur primaire solide */
       color: white;
     }
     .assistant-message {
-      background-color: #e2e8f0;
-      color: #1e293b;
     }
     .dark .assistant-message {
       background-color: #1e293b;
       color: #e2e8f0;
     }
-    /* Avatars pour les messages */
-    .avatar {
-      width: 2rem;
-      height: 2rem;
-      border-radius: 9999px;
-      display: flex;
-      align-items: center;
-      justify-content: center;
-      flex-shrink: 0;
-      font-size: 1.125rem;
-    }
-    .assistant-avatar { background-color: #e0f2fe; color: #0284c7; }
-    .dark .assistant-avatar { background-color: #0c4a6e; color: #7dd3fc; }
-    .user-avatar { background-color: #dbeafe; color: #1d4ed8; }
-    .dark .user-avatar { background-color: #1e3a8a; color: #93c5fd; }
     @keyframes message-fade-in {
-      from { opacity: 0; transform: translateY(10px) scale(0.98); }
-      to { opacity: 1; transform: translateY(0) scale(1); }
     }
     @keyframes pulse-fade {
       0%, 100% { opacity: 0.5; }
       50% { opacity: 1; }
     }
-    .typing-indicator { display: inline-flex; align-items: center; }
-    .typing-dot { width: 0.4rem; height: 0.4rem; 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; }
-    /* Tooltip amélioré */
-    .tooltip { position: relative; }
-    .tooltip .tooltip-text { visibility: hidden; width: max-content; background-color: #1e293b; color: #f8fafc; text-align: center; border-radius: 6px; padding: 0.375rem 0.625rem; position: absolute; z-index: 10; bottom: 125%; left: 50%; transform: translateX(-50%); opacity: 0; transition: opacity 0.3s, visibility 0.3s; font-size: 0.75rem; font-weight: 500; pointer-events: none; }
-    .dark .tooltip .tooltip-text { background-color: #e2e8f0; color: #1e293b; }
-    .tooltip:hover .tooltip-text { visibility: visible; opacity: 1; }
-    /* Bouton de copie amélioré */
-    .copy-btn { position: absolute; top: 0.5rem; right: 0.5rem; opacity: 0; transition: all 0.2s ease; z-index: 2; transform: scale(0.9); }
-    .message-bubble:hover .copy-btn { opacity: 1; transform: scale(1); }
-    /* Composer (zone de saisie) */
-    .chat-composer {
       background-color: white;
-      border-top: 1px solid #e2e8f0;
-      transition: background-color 0.3s ease, border-color 0.3s ease;
     }
-    .dark .chat-composer {
-      background-color: #0f172a;
-      border-top-color: #1e293b;
     }
     .chat-textarea {
-      resize: none; min-height: 48px; max-height: 200px; line-height: 1.5;
-      background-color: transparent; border: none;
-    }
-    .chat-textarea:focus { box-shadow: none; ring: 0; }
-    /* Toggle Switch */
-    .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; }
-    .dark .toggle-slider { background-color: #475569; }
-    .dark input:checked + .toggle-slider { background-color: #38bdf8; }
-    input:checked + .toggle-slider:before { transform: translateX(1.125rem); }
-    /* Styles pour le code et les tableaux */
-    pre { position: relative; background-color: #f1f5f9; border-radius: 0.5rem; margin: 1rem 0; padding: 1.25rem 1rem; overflow-x: auto; }
-    .dark pre { background-color: #0f172a; }
-    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; }
-    .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; }
-    .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; }
     /* Ajustements responsive */
     @media (max-width: 640px) {
-      .message-bubble { padding: 0.625rem 1rem; }
-      .chat-textarea { max-height: 120px; font-size: 1rem; min-height: 44px; }
-      .prose table { font-size: 0.85rem; }
-      .prose table th, .prose table td { padding: 0.375rem 0.5rem; }
     }
   </style>
 </head>
-<body class="antialiased">
-  <div class="chat-container max-w-4xl mx-auto">
-    <!-- Header amélioré -->
-    <header class="bg-white/80 dark:bg-secondary-900/80 backdrop-blur-sm py-3 px-4 border-b border-secondary-200 dark:border-secondary-800 sticky top-0 z-20">
-      <div class="flex justify-between items-center">
-        <!-- Logo & Titre -->
-        <div class="flex items-center space-x-3">
-          <img src="https://mariam-241.vercel.app/static/image/logoboma.png" alt="Logo Mariam AI" class="h-8 sm:h-9 object-contain">
-          <h1 class="text-xl font-bold text-secondary-800 dark:text-secondary-100">Mariam AI</h1>
-        </div>
-        <!-- Actions -->
-        <div class="flex items-center space-x-1 sm:space-x-2">
-          <button id="theme-toggle" class="p-2 w-10 h-10 rounded-full text-secondary-600 dark:text-secondary-300 hover:bg-secondary-100 dark:hover:bg-secondary-800 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">Thème</span>
           </button>
-          <form action="/clear" method="POST" id="clear-form">
-            <button type="submit" class="p-2 w-10 h-10 rounded-full text-red-500 hover:bg-red-500/10 transition-colors duration-200 focus:outline-none focus:ring-2 focus:ring-red-400 focus:ring-opacity-50 tooltip">
-              <i class="fa-solid fa-trash-can"></i>
-              <span class="tooltip-text">Effacer</span>
-            </button>
-          </form>
-        </div>
       </div>
-    </header>
-    <!-- Main Content -->
-    <main class="flex-grow flex flex-col">
-      <!-- Conteneur des messages -->
-      <section id="chat-messages" class="chat-messages flex flex-col space-y-5 p-4">
-        <!-- 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="message-wrapper hidden">
-            <div class="avatar assistant-avatar">✨</div>
-            <div class="message-bubble assistant-message flex items-center">
-              <div class="typing-indicator">
-                <span class="typing-dot"></span>
-                <span class="typing-dot"></span>
-                <span class="typing-dot"></span>
-              </div>
-            </div>
         </div>
-      </section>
-    </main>
-    <!-- Nouveau "Composer" unifié et sticky -->
-    <div class="chat-composer sticky bottom-0 z-10 w-full">
-      <div class="max-w-4xl mx-auto">
-        <!-- Zone d'erreur -->
-        <div id="error-message" class="bg-red-100 border-t-4 border-red-500 text-red-700 px-4 py-3 dark:bg-red-900/30 dark:text-red-300 dark:border-red-600 hidden" role="alert">
-          <div class="flex items-center">
-            <div class="flex-shrink-0"><i class="fa-solid fa-circle-exclamation mr-2"></i></div>
-            <p class="text-sm font-medium" id="error-text">Le message d'erreur détaillé ira ici.</p>
-            <button class="ml-auto -mr-1 p-1" 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 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 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 opacity-70"></i><span class="hidden sm:inline">Web</span></span>
-               <span class="toggle-switch"><input type="checkbox" id="web_search_toggle"><span class="toggle-slider"></span></span>
-               <span class="tooltip-text">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"><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 text-lg"></i>
-               <input type="file" id="file_upload" name="file" class="hidden" accept=".txt,.pdf,.png,.jpg,.jpeg">
-               <span class="tooltip-text">Joindre un fichier</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">
-          <div class="relative flex items-end bg-secondary-100 dark:bg-secondary-800 rounded-2xl">
-            <textarea
-              id="prompt"
-              name="prompt"
-              class="chat-textarea w-full pl-4 pr-12 focus:outline-none text-sm sm:text-base text-secondary-800 dark:text-secondary-100 placeholder-secondary-500 dark:placeholder-secondary-400"
-              placeholder="Posez votre question à Mariam..."
-              autocomplete="off"
-              rows="1"></textarea>
             <button
               type="submit"
               id="send-button"
-              class="absolute right-2 bottom-2 bg-primary-500 hover:bg-primary-600 disabled:bg-primary-300 disabled:cursor-not-allowed text-white rounded-full w-9 h-9 flex items-center justify-center transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-primary-400"
-              title="Envoyer">
               <i class="fa-solid fa-paper-plane text-sm"></i>
             </button>
           </div>
-        </form>
-      </div>
     </div>
-  </div>
   <!-- Scripts -->
   <script>
     document.addEventListener('DOMContentLoaded', () => {
@@ -349,8 +610,13 @@
         }
       }
       function toggleTheme() {
-        document.documentElement.classList.toggle('dark');
-        localStorage.theme = document.documentElement.classList.contains('dark') ? 'dark' : 'light';
       }
       themeToggleBtn.addEventListener('click', toggleTheme);
       initializeTheme();
@@ -373,16 +639,23 @@
       // Affichage de l'indicateur de chargement
       function showLoading(show) {
-        loadingIndicator.classList.toggle('hidden', !show);
         if (show) {
-            chatMessages.appendChild(loadingIndicator);
-            scrollToBottom();
         }
         sendButton.disabled = show;
         promptInput.disabled = show;
         fileUpload.disabled = show;
-        clearFileButton.style.pointerEvents = show ? 'none' : 'auto';
-        clearFileButton.style.opacity = show ? '0.5' : '0.7';
       }
       // Affichage des erreurs
@@ -396,54 +669,67 @@
       function addMessageToChat(role, content, isHtml = false) {
         errorMessageDiv.classList.add('hidden');
         const messageWrapper = document.createElement('div');
-        messageWrapper.className = `message-wrapper ${role === 'user' ? 'user-message-wrapper' : ''}`;
-        let messageContentHtml = isHtml ? content : `<p class="whitespace-pre-wrap">${escapeHtml(content)}</p>`;
-        const avatarClass = role === 'user' ? 'user-avatar' : 'assistant-avatar';
-        const avatarIcon = role === 'user' ? '<i class="fa-regular fa-user"></i>' : '✨';
-        const messageBubbleClass = role === 'user' ? 'user-message' : 'assistant-message';
-        const bubbleHtml = `
-            <div class="avatar ${avatarClass}">${avatarIcon}</div>
-            <div class="message-bubble ${messageBubbleClass} relative">
                 <div class="prose prose-sm sm:prose-base max-w-none dark:prose-invert">
-                    ${messageContentHtml}
                 </div>
-                ${role === 'assistant' ? `
-                <button class="copy-btn text-xs bg-white/70 dark:bg-gray-800/70 backdrop-blur-sm hover:bg-gray-200/70 dark:hover:bg-gray-700/70 py-1 px-2 rounded-full text-gray-600 dark:text-gray-300 flex items-center shadow">
-                    <i class="fa-regular fa-copy mr-1.5"></i> Copier
-                </button>` : ''}
             </div>
-        `;
         messageWrapper.innerHTML = bubbleHtml;
-        // Activation du bouton de copie (si assistant)
-        const copyBtn = messageWrapper.querySelector('.copy-btn');
-        if (copyBtn) {
-          copyBtn.addEventListener('click', function() {
-            const textToCopy = this.closest('.message-bubble').querySelector('.prose').innerText;
             navigator.clipboard.writeText(textToCopy).then(() => {
               const originalText = this.innerHTML;
-              this.innerHTML = '<i class="fa-solid fa-check mr-1.5"></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 || 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-lg 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';
           copyButton.appendChild(tooltipText);
           copyButton.addEventListener('click', () => {
             navigator.clipboard.writeText(code.innerText).then(() => {
@@ -452,8 +738,12 @@
               setTimeout(() => {
                 copyButton.innerHTML = '<i class="fa-regular fa-copy"></i>';
                 copyButton.appendChild(tooltipText);
-                tooltipText.textContent = 'Copier';
               }, 2000);
             });
           });
           pre.appendChild(copyButton);
@@ -463,7 +753,12 @@
         scrollToBottom();
       }
       function escapeHtml(unsafe) {
-        return unsafe.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """).replace(/'/g, "'");
       }
       // Gestion du cooldown pour le raisonnement avancé
@@ -483,22 +778,36 @@
             advancedCooldownTimerSpan.classList.remove('hidden');
           }
         }, 1000);
       }
       // Chargement de l'historique du chat
       async function loadChatHistory() {
         historyLoadingIndicator.style.display = 'flex';
         try {
           const response = await fetch(API_HISTORY_ENDPOINT);
-          if (!response.ok) throw new Error(`Erreur serveur (${response.status})`);
           const data = await response.json();
-          chatMessages.innerHTML = ''; // Clear everything including loading indicator template
-          chatMessages.appendChild(loadingIndicator);
           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 => addMessageToChat(message.role, message.text, message.role === 'assistant'));
             }
             scrollToBottom(false);
           } else {
@@ -506,8 +815,8 @@
           }
         } catch (error) {
           displayError(`Impossible de charger l'historique: ${error.message}`);
-          if (chatMessages.querySelectorAll('.message-wrapper').length === 0) {
-            addMessageToChat('assistant', "Bonjour ! Je suis Mariam. Je n'ai pas pu charger notre conversation précédente.", true);
           }
         } finally {
           historyLoadingIndicator.remove();
@@ -516,134 +825,268 @@
         }
       }
-      // ... le reste du JS pour la gestion des fichiers, la soumission du formulaire, etc. reste très similaire
-      // et fonctionnera avec la nouvelle structure. Je vais juste recopier la partie pertinente du script original
-      // en m'assurant que les sélecteurs sont toujours corrects.
       // Gestion des fichiers
       function clearFileInput() {
-        fileUpload.value = ''; fileChip.classList.add('hidden'); fileNameSpan.textContent = ''; fileNameSpan.title = ''; filePreview.innerHTML = ''; filePreview.classList.add('hidden'); previewArea.classList.add('hidden');
       }
       fileUpload.addEventListener('change', () => {
         if (fileUpload.files.length > 0) {
-          const file = fileUpload.files[0]; const name = file.name; fileNameSpan.textContent = name; fileNameSpan.title = name; fileChip.classList.remove('hidden'); filePreview.innerHTML = '';
           if (file.type.startsWith('image/')) {
             const reader = new FileReader();
-            reader.onload = (e) => { filePreview.innerHTML = `<div class="file-preview"><img src="${e.target.result}" alt="Prévisualisation: ${escapeHtml(name)}"></div>`; filePreview.classList.remove('hidden'); previewArea.classList.remove('hidden'); };
             reader.readAsDataURL(file);
           } else {
-            filePreview.innerHTML = `<div class="flex items-center justify-center p-3"><div class="bg-gray-100 dark:bg-gray-800 p-3 rounded-lg text-center"><i class="fa-solid fa-file text-3xl text-gray-500 dark:text-gray-400 mb-2"></i><p class="text-xs text-gray-500 dark:text-gray-400">${name}</p></div></div>`;
-            filePreview.classList.remove('hidden'); previewArea.classList.remove('hidden');
           }
-        } else { clearFileInput(); }
       });
       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' && !e.shiftKey && !isMobile) {
             e.preventDefault();
-            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];
-        if (sendButton.disabled || (!prompt && !file)) return;
         errorMessageDiv.classList.add('hidden');
-        if (advancedToggle.checked && advancedToggleCooldownEndTime > 0 && Date.now() < advancedToggleCooldownEndTime) {
-          const remaining = Math.ceil((advancedToggleCooldownEndTime - Date.now()) / 1000);
-          displayError(`Le raisonnement avancé est disponible dans ${remaining}s.`); return;
         }
         let userMessageText = prompt;
-        if (file && file.name) { userMessageText = prompt ? `${prompt}\n[Fichier: ${file.name}]` : `[Fichier joint: ${file.name}]`; }
         addMessageToChat('user', userMessageText);
         const formData = new FormData();
-        formData.append('prompt', prompt); formData.append('web_search', webSearchToggle.checked); formData.append('advanced_reasoning', advancedToggle.checked);
-        if (file) formData.append('file', file);
-        promptInput.value = ''; adjustTextareaHeight(promptInput); clearFileInput();
-        if (advancedToggle.checked) { 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: ${response.status}`);
-          if (data.success && data.message) addMessageToChat('assistant', data.message, true);
-          else throw new Error(data.error || "Réponse invalide du serveur.");
         } catch (error) {
           console.error("Chat Error:", error);
           addMessageToChat('assistant', `<p class="text-red-600 dark:text-red-400">Désolé, une erreur est survenue :<br>${escapeHtml(error.message)}</p>`, true);
         } finally {
-          showLoading(false); promptInput.focus();
         }
       });
       // Effacement de la conversation
-      clearForm.addEventListener('submit', (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-dialog-show"><h3 class="text-lg font-semibold mb-3">Confirmer l'effacement</h3><p class="text-sm text-gray-600 dark:text-gray-300 mb-5">Voulez-vous vraiment 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 bg-gray-100 dark:bg-gray-700 rounded hover:bg-gray-200 dark:hover:bg-gray-600">Annuler</button><button id="confirm-clear" class="px-4 py-2 text-sm font-medium text-white bg-red-600 rounded hover:bg-red-700">Effacer</button></div></div>`;
-        const closeModal = () => document.body.contains(confirmDialog) && document.body.removeChild(confirmDialog);
         confirmDialog.querySelector('#cancel-clear').addEventListener('click', closeModal);
         confirmDialog.querySelector('#confirm-clear').addEventListener('click', async () => {
           closeModal();
           const clearButton = e.target.querySelector('button[type="submit"]');
           clearButton.disabled = true;
           try {
-            const response = await fetch(CLEAR_ENDPOINT, { method: 'POST', headers: { 'X-Requested-With': 'XMLHttpRequest' } });
             const data = await response.json();
             if (response.ok && data.success) {
-              chatMessages.innerHTML = ''; chatMessages.appendChild(loadingIndicator);
-              addMessageToChat('assistant', "Conversation effacée. Comment puis-je vous aider ?", true);
             } else {
-              throw new Error(data.error || "Impossible d'effacer.");
             }
-          } catch (error) { displayError(`Erreur: ${error.message}`);
-          } finally { clearButton.disabled = false; }
         });
         document.body.appendChild(confirmDialog);
       });
       // Initialisation
       loadChatHistory();
       // Observer pour les tableaux Markdown
-      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);
-                  }
-                });
-              }
-            });
-          }
         });
-      }).observe(chatMessages, { childList: true, subtree: true });
-      // Gestion du thème système
-      window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', e => {
         if (!localStorage.getItem('theme')) {
-            document.documentElement.classList.toggle('dark', e.matches);
         }
-      });
     });
   </script>
 </body>
-</html>

 <!DOCTYPE html>
+<html lang="fr">
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <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>
       theme: {
         extend: {
           fontFamily: {
+            sans: ['Inter', 'system-ui', 'sans-serif'],
             mono: ['"JetBrains Mono"', 'monospace']
           },
           colors: {
             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' } } }
         }
       }
     }
   <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', () => {
         }
       }
       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();
       // 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 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(() => {
               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);
         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
             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 {
           }
         } catch (error) {
           displayError(`Impossible de charger l'historique: ${error.message}`);
+          if (chatMessages.querySelectorAll(':scope > *:not(#loading-indicator):not(#history-loading)').length === 0) {
+            addMessageToChat('assistant', "Bonjour ! Je suis Mariam. Je n'ai pas pu charger notre conversation précédente. Comment puis-je vous aider ?", true);
           }
         } finally {
           historyLoadingIndicator.remove();
         }
       }
       // Gestion des fichiers
       function clearFileInput() {
+        fileUpload.value = '';
+        fileChip.classList.add('hidden');
+        fileNameSpan.textContent = '';
+        fileNameSpan.title = '';
+        filePreview.innerHTML = '';
+        filePreview.classList.add('hidden');
+        previewArea.classList.add('hidden');
       }
       fileUpload.addEventListener('change', () => {
         if (fileUpload.files.length > 0) {
+          const file = fileUpload.files[0];
+          const name = file.name;
+          fileNameSpan.textContent = name;
+          fileNameSpan.title = name;
+          fileChip.classList.remove('hidden');
+          filePreview.innerHTML = '';
           if (file.type.startsWith('image/')) {
             const reader = new FileReader();
+            reader.onload = (e) => {
+              filePreview.innerHTML = `
+                <div class="file-preview">
+                  <img src="${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>