diff --git a/proiect-nutritie-java/src/main/webapp/index.html b/proiect-nutritie-java/src/main/webapp/index.html
index 884f8fe..ef12d41 100644
--- a/proiect-nutritie-java/src/main/webapp/index.html
+++ b/proiect-nutritie-java/src/main/webapp/index.html
@@ -3,204 +3,133 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>NutriAI Ultra - Elite Coaching</title>
+    <title>NutriAI Elite v4.0</title>
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
-    <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap" rel="stylesheet">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
     <style>
         :root {
-            --bg-dark: #0f172a;
-            --card-bg: #1e293b;
-            --accent-green: #10b981;
-            --accent-blue: #3b82f6;
-            --text-main: #f8fafc;
-            --text-muted: #94a3b8;
+            --primary: #3b82f6; --bg: #0f172a; --card: #1e293b; --text: #f8fafc;
         }
+        
+        /* Teme de culoare */
+        body.light-theme { --bg: #f1f5f9; --card: #ffffff; --text: #1e293b; }
+        body.blue-theme { --bg: #1e3a8a; --card: #1e40af; --text: #ffffff; }
 
         body { 
-            background-color: var(--bg-dark); 
-            font-family: 'Poppins', sans-serif; 
-            color: var(--text-main);
-            overflow-x: hidden;
+            background-color: var(--bg); color: var(--text); 
+            font-family: 'Outfit', sans-serif; transition: 0.4s;
         }
 
         .sidebar {
-            background: rgba(30, 41, 59, 0.9);
-            backdrop-filter: blur(15px);
-            border-right: 1px solid rgba(255,255,255,0.1);
-            min-height: 100vh;
-            padding: 30px 20px;
+            background: var(--card); border-right: 1px solid rgba(255,255,255,0.1);
+            min-height: 100vh; padding: 2rem;
         }
 
-        .glass-card {
-            background: var(--card-bg);
-            border-radius: 20px;
-            border: 1px solid rgba(255,255,255,0.1);
-            padding: 25px;
-            margin-bottom: 25px;
+        .glass-input {
+            background: rgba(0,0,0,0.2) !important; border: 1px solid rgba(255,255,255,0.1) !important;
+            color: var(--text) !important; border-radius: 12px; padding: 10px;
         }
 
-        /* Chat Window îmbunătățit */
-        .chat-container {
-            height: 65vh;
-            overflow-y: auto;
-            padding: 25px;
-            background: #020617;
-            border-radius: 20px;
-            margin-bottom: 20px;
-            border: 1px solid #1e293b;
+        .kcal-hub {
+            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
+            border-radius: 20px; padding: 2rem; text-align: center; box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
         }
 
-        /* Bule Chat mai mari și mai lizibile */
-        .ai-msg {
-            background: #1e293b;
-            color: #f1f5f9;
-            padding: 25px;
-            border-radius: 20px 20px 20px 5px;
-            margin-bottom: 25px;
-            border-left: 6px solid var(--accent-blue);
-            font-size: 1.15rem; /* Text mai mare */
-            line-height: 1.7;
-            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
+        .chat-area { height: 60vh; overflow-y: auto; padding: 20px; border-radius: 20px; background: rgba(0,0,0,0.1); }
+        
+        .msg { padding: 1.5rem; border-radius: 1.5rem; margin-bottom: 1.5rem; max-width: 85%; font-size: 1.1rem; line-height: 1.6; }
+        .ai { background: var(--card); border-left: 5px solid #3b82f6; }
+        .user { background: #10b981; margin-left: auto; color: white; font-weight: 500; }
+
+        .theme-selector { position: fixed; top: 20px; right: 20px; z-index: 1000; }
+        .input-bar { 
+            background: var(--card); border-radius: 50px; padding: 10px 25px; 
+            box-shadow: 0 4px 20px rgba(0,0,0,0.2); border: 1px solid rgba(255,255,255,0.1);
         }
-
-        .user-msg {
-            background: var(--accent-green);
-            color: white;
-            padding: 15px 25px;
-            border-radius: 20px 20px 5px 20px;
-            margin-bottom: 25px;
-            margin-left: 20%;
-            font-weight: 600;
-            font-size: 1.1rem;
-            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
-        }
-
-        .kcal-badge-ultra {
-            background: linear-gradient(135deg, #10b981 0%, #059669 100%);
-            padding: 30px;
-            border-radius: 25px;
-            text-align: center;
-            box-shadow: 0 0 25px rgba(16, 185, 129, 0.5);
-        }
-
-        .form-control, .form-select {
-            background: #334155 !important;
-            border: 1px solid #475569 !important;
-            color: white !important;
-            padding: 14px;
-            font-size: 1rem;
-        }
-
-        .input-group-custom {
-            background: #1e293b;
-            border-radius: 50px;
-            padding: 8px 15px;
-            border: 2px solid #334155;
-            transition: 0.3s;
-        }
-
-        .input-group-custom:focus-within {
-            border-color: var(--accent-blue);
-            box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
-        }
-
-        #userInput {
-            background: transparent !important;
-            border: none !important;
-            font-size: 1.2rem;
-            color: white !important;
-        }
-
-        #userInput::placeholder { color: #64748b; }
-
-        .btn-send {
-            background: var(--accent-blue);
-            border-radius: 50%;
-            width: 55px;
-            height: 55px;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            border: none;
-            color: white;
-            transition: 0.3s;
-        }
-
-        .btn-send:hover { transform: scale(1.1); background: #2563eb; }
-
-        pre { font-size: 1.1rem; color: #e2e8f0; font-family: 'Poppins', sans-serif; white-space: pre-wrap; }
     </style>
 </head>
 <body>
 
+<div class="theme-selector dropdown">
+    <button class="btn btn-dark rounded-pill px-4 shadow dropdown-toggle" data-bs-toggle="dropdown">
+        <i class="fas fa-palette me-2"></i>Aspect
+    </button>
+    <ul class="dropdown-menu">
+        <li><a class="dropdown-item" href="#" onclick="setTheme('dark')">Dark Mode</a></li>
+        <li><a class="dropdown-item" href="#" onclick="setTheme('light')">Light Mode</a></li>
+        <li><a class="dropdown-item" href="#" onclick="setTheme('blue')">Ocean Blue</a></li>
+    </ul>
+</div>
+
 <div class="container-fluid">
     <div class="row">
-        <div class="col-lg-3 sidebar shadow-lg">
-            <h2 class="fw-bold mb-5 text-center"><i class="fas fa-heartbeat text-primary me-2"></i>Nutri<span class="text-primary">AI</span></h2>
+        <div class="col-lg-3 sidebar">
+            <h3 class="fw-bold mb-4"><i class="fas fa-dna me-2 text-primary"></i>Profil Bio</h3>
             
-            <div class="glass-card">
-                <h6 class="text-uppercase small fw-bold text-primary mb-3"><i class="fas fa-user-circle me-2"></i>Date Biometrice</h6>
-                <div class="row g-3">
-                    <div class="col-6">
-                        <label class="small text-muted mb-1">Greutate (kg)</label>
-                        <input type="number" id="greutate" class="form-control" value="85">
-                    </div>
-                    <div class="col-6">
-                        <label class="small text-muted mb-1">Înălțime (cm)</label>
-                        <input type="number" id="inaltime" class="form-control" value="180">
-                    </div>
-                    <div class="col-12">
-                        <label class="small text-muted mb-1">Nivel Activitate</label>
-                        <select id="activitate" class="form-select">
-                            <option value="1.2">Sedentar</option>
-                            <option value="1.55">Moderat</option>
-                            <option value="1.75">Sportiv</option>
-                        </select>
-                    </div>
+            <div class="row g-3 mb-4">
+                <div class="col-6">
+                    <label class="small opacity-75">Vârstă</label>
+                    <input type="number" id="varsta" class="form-control glass-input" value="30">
+                </div>
+                <div class="col-6">
+                    <label class="small opacity-75">Sex</label>
+                    <select id="sex" class="form-select glass-input">
+                        <option value="masculin">Masculin</option>
+                        <option value="feminin">Feminin</option>
+                    </select>
+                </div>
+                <div class="col-6">
+                    <label class="small opacity-75">Înălțime (cm)</label>
+                    <input type="number" id="inaltime" class="form-control glass-input" value="180">
+                </div>
+                <div class="col-6">
+                    <label class="small opacity-75">Greutate (kg)</label>
+                    <input type="number" id="greutate" class="form-control glass-input" value="85">
+                </div>
+                <div class="col-12">
+                    <label class="small opacity-75">Nivel Activitate</label>
+                    <select id="activitate" class="form-select glass-input">
+                        <option value="1.2">Sedentar (Birou)</option>
+                        <option value="1.375">Ușor Activ (1-2 zile sport)</option>
+                        <option value="1.55">Moderat Activ (3-5 zile sport)</option>
+                        <option value="1.725">Foarte Activ (Zilnic/Fizic)</option>
+                    </select>
                 </div>
             </div>
 
-            <div class="glass-card">
-                <h6 class="text-uppercase small fw-bold text-primary mb-3"><i class="fas fa-bullseye me-2"></i>Ajustare Obiectiv</h6>
-                <input type="range" class="form-range" id="kcalAdjust" min="-800" max="800" step="50" value="0">
-                <div class="d-flex justify-content-between mt-2 fw-bold text-info">
-                    <span>Slăbire</span>
-                    <span id="sliderLabel">0 kcal</span>
-                    <span>Masă</span>
-                </div>
+            <div class="mb-4">
+                <label class="fw-bold d-flex justify-content-between">
+                    Obiectiv <span><span id="objLabel">0</span> kcal</span>
+                </label>
+                <input type="range" class="form-range" id="kcalAdjust" min="-1000" max="1000" step="50" value="0">
             </div>
 
-            <div class="kcal-badge-ultra">
-                <span class="text-uppercase small fw-bold opacity-75">Necesar Zilnic</span>
-                <h1 class="fw-bold mb-0" id="totalKcal">2500</h1>
-                <span class="fw-bold">KCAL / ZI</span>
+            <div class="kcal-hub shadow-lg">
+                <small class="text-uppercase opacity-75">Ținta ta calorică</small>
+                <h1 class="fw-bold display-5 mb-0" id="totalKcal">2500</h1>
+                <span class="small fw-bold">KCAL / ZI</span>
             </div>
 
-            <button onclick="calculateAndSync()" class="btn btn-primary w-100 mt-4 py-3 fw-bold rounded-pill shadow">
-                <i class="fas fa-sync-alt me-2"></i>RECALCULEAZĂ
+            <button onclick="updateProfile()" class="btn btn-primary w-100 mt-4 py-3 fw-bold rounded-pill">
+                <i class="fas fa-sync-alt me-2"></i>ACTUALIZEAZĂ DATE
             </button>
         </div>
 
-        <div class="col-lg-9 p-md-5 p-3">
-            <div class="d-flex align-items-center mb-4">
-                <div class="flex-grow-1">
-                    <h1 class="fw-bold mb-1">Asistent Nutriție Elite</h1>
-                    <p class="text-muted"><i class="fas fa-bolt text-warning me-2"></i>Procesare ultra-rapidă prin Groq Llama 3.3</p>
+        <div class="col-lg-9 p-5">
+            <h2 class="fw-bold mb-4">Asistent Personalizat AI</h2>
+            <div id="chatBox" class="chat-area shadow-inner">
+                <div class="msg ai shadow-sm">
+                    <h5 class="fw-bold">Sistem Gata.</h5>
+                    Salut! Sunt antrenorul tău digital. Am preluat toate detaliile tale biometrice. <br>
+                    <strong>Cu ce începem?</strong> Îmi poți cere un meniu saptamanal sau un plan de antrenament.
                 </div>
             </div>
 
-            <div id="chatBox" class="chat-container shadow-2xl">
-                <div class="ai-msg">
-                    <h4 class="fw-bold mb-3"><i class="fas fa-robot me-2"></i>Sistemul este pregătit.</h4>
-                    Salut! Am configurat profilul tău pentru <strong id="kcalTag">2500</strong> calorii. <br>
-                    <strong>Ce dorești să facem?</strong> Poți cere un meniu pe o zi, pe o săptămână sau chiar o rețetă specifică.
-                </div>
-            </div>
-
-            <div class="input-group-custom d-flex align-items-center mt-4 shadow-lg">
-                <input type="text" id="userInput" class="form-control" placeholder="Scrie aici mesajul tău și apasă ENTER...">
-                <button onclick="sendToGroq()" class="btn btn-send shadow">
+            <div class="input-bar d-flex align-items-center mt-4">
+                <input type="text" id="userInput" class="form-control bg-transparent border-0 text-white" 
+                       placeholder="Scrie aici și apasă ENTER..." style="font-size: 1.2rem;">
+                <button onclick="sendToGroq()" class="btn btn-primary rounded-circle p-3 ms-2" style="width: 55px; height: 55px;">
                     <i class="fas fa-paper-plane"></i>
                 </button>
             </div>
@@ -208,80 +137,61 @@
     </div>
 </div>
 
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
 <script>
-    const GROQ_API_KEY = "AICI_PUI_CHEIA_TA_GROQ";
+    const GROQ_API_KEY = "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";
     let currentKcal = 0;
 
-    // --- FUNCȚIA ENTER KEY ---
-    document.getElementById('userInput').addEventListener('keypress', function (e) {
-        if (e.key === 'Enter') {
-            sendToGroq();
-        }
-    });
+    function setTheme(theme) {
+        document.body.className = theme + '-theme';
+    }
 
-    document.getElementById('kcalAdjust').addEventListener('input', function() {
-        document.getElementById('sliderLabel').innerText = (this.value > 0 ? '+' : '') + this.value + " kcal";
-        calculateAndSync();
-    });
+    document.getElementById('userInput').addEventListener('keypress', (e) => { if(e.key === 'Enter') sendToGroq(); });
 
-    function calculateAndSync() {
-        const g = parseFloat(document.getElementById('greutate').value);
+    function updateProfile() {
+        const v = parseFloat(document.getElementById('varsta').value);
+        const s = document.getElementById('sex').value;
         const i = parseFloat(document.getElementById('inaltime').value);
+        const g = parseFloat(document.getElementById('greutate').value);
         const act = parseFloat(document.getElementById('activitate').value);
         const adj = parseInt(document.getElementById('kcalAdjust').value);
 
-        let bmr = (10 * g) + (6.25 * i) - (5 * 30) + 5;
+        let bmr = (s === 'masculin') ? (10 * g) + (6.25 * i) - (5 * v) + 5 : (10 * g) + (6.25 * i) - (5 * v) - 161;
         currentKcal = Math.round((bmr * act) + adj);
         
         document.getElementById('totalKcal').innerText = currentKcal;
-        document.getElementById('kcalTag').innerText = currentKcal;
+        document.getElementById('objLabel').innerText = (adj > 0 ? '+' : '') + adj;
     }
 
     async function sendToGroq() {
         const input = document.getElementById('userInput');
-        const userText = input.value.trim();
-        if(!userText) return;
+        const text = input.value.trim();
+        if(!text) return;
 
-        addMessage("user", userText);
+        addMsg('user', text);
         input.value = "";
-
-        const loadingId = "loading-" + Date.now();
-        addMessage("ai", '<div class="spinner-border spinner-border-sm text-info me-2"></div> Se generează răspunsul...', loadingId);
+        const loadId = 'load-' + Date.now();
+        addMsg('ai', '<div class="spinner-border spinner-border-sm text-primary"></div> Gândesc...', loadId);
 
         try {
-            const response = await fetch("https://api.groq.com/openai/v1/chat/completions", {
-                method: "POST",
-                headers: {
-                    "Authorization": `Bearer ${GROQ_API_KEY}`,
-                    "Content-Type": "application/json"
-                },
+            const resp = await fetch("https://api.groq.com/openai/v1/chat/completions", {
+                method: "POST", headers: { "Authorization": `Bearer ${GROQ_API_KEY}`, "Content-Type": "application/json" },
                 body: JSON.stringify({
                     model: "llama-3.3-70b-versatile",
-                    messages: [
-                        {
-                            role: "system", 
-                            content: `Ești un nutriționist de top. Ținta utilizatorului este de ${currentKcal} kcal. Răspunde exclusiv în ROMÂNĂ. Folosește Markdown (tabele, liste) pentru claritate maximă.`
-                        },
-                        { role: "user", content: userText }
-                    ]
+                    messages: [{ role: "system", content: `Ești un nutriționist expert. Profil utilizator: ${currentKcal} kcal/zi. Răspunde în ROMÂNĂ cu meniuri și sfaturi saptamanale.` }, { role: "user", content: text }]
                 })
             });
-
-            const data = await response.json();
-            const text = data.choices[0].message.content;
-            document.getElementById(loadingId).innerHTML = `<pre>${text}</pre>`;
-        } catch (error) {
-            document.getElementById(loadingId).innerText = "Eroare la conexiunea cu AI-ul!";
-        }
+            const data = await resp.json();
+            document.getElementById(loadId).innerHTML = `<div style="white-space: pre-wrap">${data.choices[0].message.content}</div>`;
+        } catch(e) { document.getElementById(loadId).innerText = "Eroare de conexiune!"; }
     }
 
-    function addMessage(type, msg, id = null) {
-        const box = document.getElementById('chatBox');
-        box.innerHTML += `<div class="${type}-msg" ${id ? `id="${id}"` : ''}>${msg}</div>`;
-        box.scrollTop = box.scrollHeight;
+    function addMsg(type, content, id = null) {
+        const b = document.getElementById('chatBox');
+        b.innerHTML += `<div class="msg ${type} shadow-sm" ${id ? `id="${id}"` : ''}>${content}</div>`;
+        b.scrollTop = b.scrollHeight;
     }
-
-    calculateAndSync();
+    updateProfile();
 </script>
 </body>
 </html>
\ No newline at end of file
