diff --git a/backend/app/main.py b/backend/app/main.py
index bc54904..e63fa35 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -1,3 +1,46 @@
+
+# ============= LOGO CONFIGURABLE =============
+from fastapi import FastAPI, Form
+app = FastAPI()
+
+@app.post("/api/config/logo", response_model=dict)
+async def upload_logo(
+    file: UploadFile = File(...),
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user)
+):
+    """Sube un logo y lo guarda en MinIO, actualiza la configuración."""
+    if current_user.role != "admin":
+        raise HTTPException(status_code=403, detail="Solo administradores pueden cambiar el logo")
+
+    # Subir imagen a MinIO
+    file_extension = file.filename.split(".")[-1]
+    now = datetime.now()
+    folder = f"logo"
+    file_name = f"logo_{now.strftime('%Y%m%d_%H%M%S')}.{file_extension}"
+    s3_key = f"{folder}/{file_name}"
+    s3_client.upload_fileobj(file.file, S3_IMAGE_BUCKET, s3_key, ExtraArgs={"ContentType": file.content_type})
+    logo_url = f"{S3_ENDPOINT}/{S3_IMAGE_BUCKET}/{s3_key}"
+
+    # Guardar en configuración (puedes tener una tabla Config o usar AIConfiguration)
+    config = db.query(models.AIConfiguration).filter(models.AIConfiguration.is_active == True).first()
+    if config:
+        config.logo_url = logo_url
+        db.commit()
+        db.refresh(config)
+    # Si no hay config, solo retorna la url
+    return {"logo_url": logo_url}
+
+# Endpoint para obtener el logo
+@app.get("/api/config/logo", response_model=dict)
+def get_logo_url(
+    db: Session = Depends(get_db)
+):
+    config = db.query(models.AIConfiguration).filter(models.AIConfiguration.is_active == True).first()
+    if config and getattr(config, "logo_url", None):
+        return {"logo_url": config.logo_url}
+    # Default logo (puedes poner una url por defecto)
+    return {"logo_url": f"{S3_ENDPOINT}/{S3_IMAGE_BUCKET}/logo/default_logo.png"}
 from fastapi import FastAPI, Depends, HTTPException, status, UploadFile, File
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 3ab3461..62ca7f3 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -45,6 +45,20 @@ function LoginPage({ setUser }) {
   const [password, setPassword] = useState('')
   const [error, setError] = useState('')
   const [loading, setLoading] = useState(false)
+  const [logoUrl, setLogoUrl] = useState(null);
+  useEffect(() => {
+    const fetchLogo = async () => {
+      try {
+        const API_URL = import.meta.env.VITE_API_URL || '';
+        const res = await fetch(`${API_URL}/api/config/logo`);
+        if (res.ok) {
+          const data = await res.json();
+          setLogoUrl(data.logo_url);
+        }
+      } catch {}
+    };
+    fetchLogo();
+  }, []);
 
   const handleLogin = async (e) => {
     e.preventDefault()
@@ -86,22 +100,11 @@ function LoginPage({ setUser }) {
         {/* Header con Logo */}
         <div className="bg-gradient-to-r from-indigo-600 to-purple-600 px-8 py-10 text-center">
           <div className="flex justify-center mb-4">
-            {/* Logo S de Syntria */}
-            <div className="w-24 h-24 bg-white rounded-2xl flex items-center justify-center shadow-lg transform hover:scale-105 transition-transform">
-              <svg viewBox="0 0 100 100" className="w-16 h-16">
-                <path
-                  d="M 30 25 Q 20 25 20 35 Q 20 45 30 45 L 50 45 Q 60 45 60 55 Q 60 65 50 65 L 30 65 Q 20 65 20 75 Q 20 85 30 85 L 70 85 Q 80 85 80 75 Q 80 65 70 65 L 50 65 Q 40 65 40 55 Q 40 45 50 45 L 70 45 Q 80 45 80 35 Q 80 25 70 25 Z"
-                  fill="url(#gradient)"
-                  stroke="none"
-                />
-                <defs>
-                  <linearGradient id="gradient" x1="0%" y1="0%" x2="100%" y2="100%">
-                    <stop offset="0%" style={{ stopColor: '#6366f1', stopOpacity: 1 }} />
-                    <stop offset="100%" style={{ stopColor: '#a855f7', stopOpacity: 1 }} />
-                  </linearGradient>
-                </defs>
-              </svg>
-            </div>
+            {logoUrl ? (
+              <img src={logoUrl} alt="Logo" className="w-24 h-24 object-contain bg-white rounded-2xl shadow-lg" />
+            ) : (
+              <div className="w-24 h-24 bg-white rounded-2xl flex items-center justify-center shadow-lg text-gray-400">Sin logo</div>
+            )}
           </div>
           <h1 className="text-4xl font-bold text-white mb-2">Syntria</h1>
           <p className="text-indigo-100 text-sm">Sistema Inteligente de Inspecciones</p>
@@ -174,6 +177,20 @@ function DashboardPage({ user, setUser }) {
   const [activeTab, setActiveTab] = useState('checklists')
   const [activeInspection, setActiveInspection] = useState(null)
   const [sidebarOpen, setSidebarOpen] = useState(true)
+  const [logoUrl, setLogoUrl] = useState(null);
+  useEffect(() => {
+    const fetchLogo = async () => {
+      try {
+        const API_URL = import.meta.env.VITE_API_URL || '';
+        const res = await fetch(`${API_URL}/api/config/logo`);
+        if (res.ok) {
+          const data = await res.json();
+          setLogoUrl(data.logo_url);
+        }
+      } catch {}
+    };
+    fetchLogo();
+  }, []);
 
   useEffect(() => {
     loadData()
@@ -273,21 +290,11 @@ function DashboardPage({ user, setUser }) {
             <div className="flex items-center justify-between">
               {/* Logo y Nombre del Sistema */}
               <div className="flex items-center gap-3">
-                <div className="w-12 h-12 bg-white rounded-xl flex items-center justify-center shadow-lg">
-                  <svg viewBox="0 0 100 100" className="w-8 h-8">
-                    <path
-                      d="M 30 25 Q 20 25 20 35 Q 20 45 30 45 L 50 45 Q 60 45 60 55 Q 60 65 50 65 L 30 65 Q 20 65 20 75 Q 20 85 30 85 L 70 85 Q 80 85 80 75 Q 80 65 70 65 L 50 65 Q 40 65 40 55 Q 40 45 50 45 L 70 45 Q 80 45 80 35 Q 80 25 70 25 Z"
-                      fill="url(#headerGradient)"
-                      stroke="none"
-                    />
-                    <defs>
-                      <linearGradient id="headerGradient" x1="0%" y1="0%" x2="100%" y2="100%">
-                        <stop offset="0%" style={{ stopColor: '#6366f1', stopOpacity: 1 }} />
-                        <stop offset="100%" style={{ stopColor: '#a855f7', stopOpacity: 1 }} />
-                      </linearGradient>
-                    </defs>
-                  </svg>
-                </div>
+                {logoUrl ? (
+                  <img src={logoUrl} alt="Logo" className="w-12 h-12 object-contain bg-white rounded-xl shadow-lg" />
+                ) : (
+                  <div className="w-12 h-12 bg-white rounded-xl flex items-center justify-center shadow-lg text-gray-400">Sin logo</div>
+                )}
                 <div>
                   <h1 className="text-2xl font-bold text-white">Syntria</h1>
                   <p className="text-xs text-indigo-200">Sistema Inteligente de Inspecciones</p>
@@ -363,65 +370,106 @@ function DashboardPage({ user, setUser }) {
 }
 
 function SettingsTab({ user }) {
-  const [aiConfig, setAiConfig] = useState(null)
-  const [availableModels, setAvailableModels] = useState([])
-  const [loading, setLoading] = useState(true)
-  const [saving, setSaving] = useState(false)
+  // Estado para el logo
+  const [logoUrl, setLogoUrl] = useState(null);
+  const [logoUploading, setLogoUploading] = useState(false);
+  const [aiConfig, setAiConfig] = useState(null);
+  const [availableModels, setAvailableModels] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [saving, setSaving] = useState(false);
   const [formData, setFormData] = useState({
     provider: 'openai',
     api_key: '',
     model_name: 'gpt-4o'
-  })
+  });
 
   useEffect(() => {
-    loadSettings()
-  }, [])
+    const fetchLogo = async () => {
+      try {
+        const API_URL = import.meta.env.VITE_API_URL || '';
+        const token = localStorage.getItem('token');
+        const res = await fetch(`${API_URL}/api/config/logo`, {
+          headers: { 'Authorization': `Bearer ${token}` }
+        });
+        if (res.ok) {
+          const data = await res.json();
+          setLogoUrl(data.logo_url);
+        }
+      } catch {}
+    };
+    fetchLogo();
+  }, []);
+
+  useEffect(() => {
+    loadSettings();
+  }, []);
 
   const loadSettings = async () => {
     try {
-      const token = localStorage.getItem('token')
-      const API_URL = import.meta.env.VITE_API_URL || ''
-      
+      const token = localStorage.getItem('token');
+      const API_URL = import.meta.env.VITE_API_URL || '';
       // Cargar modelos disponibles
       const modelsRes = await fetch(`${API_URL}/api/ai/models`, {
         headers: { 'Authorization': `Bearer ${token}` }
-      })
-      
+      });
       if (modelsRes.ok) {
-        const models = await modelsRes.json()
-        setAvailableModels(models)
+        const models = await modelsRes.json();
+        setAvailableModels(models);
       }
-      
       // Cargar configuración actual
       const configRes = await fetch(`${API_URL}/api/ai/configuration`, {
         headers: { 'Authorization': `Bearer ${token}` }
-      })
-      
+      });
       if (configRes.ok) {
-        const config = await configRes.json()
-        setAiConfig(config)
+        const config = await configRes.json();
+        setAiConfig(config);
         setFormData({
           provider: config.provider,
           api_key: config.api_key,
           model_name: config.model_name
-        })
+        });
       }
-      
-      setLoading(false)
+      setLoading(false);
     } catch (error) {
-      console.error('Error loading settings:', error)
-      setLoading(false)
+      console.error('Error loading settings:', error);
+      setLoading(false);
     }
-  }
+  };
+
+  const handleLogoUpload = async (e) => {
+    const file = e.target.files[0];
+    if (!file) return;
+    setLogoUploading(true);
+    try {
+      const API_URL = import.meta.env.VITE_API_URL || '';
+      const token = localStorage.getItem('token');
+      const formDataLogo = new FormData();
+      formDataLogo.append('file', file);
+      const res = await fetch(`${API_URL}/api/config/logo`, {
+        method: 'POST',
+        headers: { 'Authorization': `Bearer ${token}` },
+        body: formDataLogo
+      });
+      if (res.ok) {
+        const data = await res.json();
+        setLogoUrl(data.logo_url);
+        alert('Logo actualizado correctamente');
+      } else {
+        alert('Error al subir el logo');
+      }
+    } catch {
+      alert('Error al subir el logo');
+    } finally {
+      setLogoUploading(false);
+    }
+  };
 
   const handleSave = async (e) => {
-    e.preventDefault()
-    setSaving(true)
-    
+    e.preventDefault();
+    setSaving(true);
     try {
-      const token = localStorage.getItem('token')
-      const API_URL = import.meta.env.VITE_API_URL || ''
-      
+      const token = localStorage.getItem('token');
+      const API_URL = import.meta.env.VITE_API_URL || '';
       const response = await fetch(`${API_URL}/api/ai/configuration`, {
         method: 'POST',
         headers: {
@@ -429,168 +477,119 @@ function SettingsTab({ user }) {
           'Content-Type': 'application/json',
         },
         body: JSON.stringify(formData),
-      })
-
+      });
       if (response.ok) {
-        alert('Configuración guardada correctamente')
-        loadSettings()
+        alert('Configuración guardada correctamente');
+        loadSettings();
       } else {
-        alert('Error al guardar configuración')
+        alert('Error al guardar configuración');
       }
     } catch (error) {
-      console.error('Error:', error)
-      alert('Error al guardar configuración')
+      console.error('Error:', error);
+      alert('Error al guardar configuración');
     } finally {
-      setSaving(false)
+      setSaving(false);
     }
-  }
+  };
 
-  const filteredModels = availableModels.filter(m => m.provider === formData.provider)
+  const filteredModels = availableModels.filter(m => m.provider === formData.provider);
 
   return (
     <div className="max-w-4xl">
-      <div className="mb-6">
-        <h2 className="text-xl font-bold text-gray-900">Configuración de IA</h2>
-        <p className="text-sm text-gray-600 mt-1">
-          Configura el proveedor y modelo de IA para análisis de imágenes
-        </p>
-      </div>
-
-      {loading ? (
-        <div className="text-center py-12">
-          <div className="text-gray-500">Cargando configuración...</div>
-        </div>
-      ) : (
-        <form onSubmit={handleSave} className="space-y-6">
-          {/* Provider Selection */}
-          <div className="bg-white border border-gray-200 rounded-lg p-6">
-            <h3 className="text-lg font-semibold text-gray-900 mb-4">Proveedor de IA</h3>
-            
-            <div className="grid grid-cols-2 gap-4">
-              <button
-                type="button"
-                onClick={() => {
-                  setFormData({ ...formData, provider: 'openai', model_name: 'gpt-4o' })
-                }}
-                className={`p-4 border-2 rounded-lg transition ${
-                  formData.provider === 'openai'
-                    ? 'border-blue-500 bg-blue-50'
-                    : 'border-gray-300 hover:border-gray-400'
-                }`}
-              >
-                <div className="text-4xl mb-2">🤖</div>
-                <div className="font-semibold">OpenAI</div>
-                <div className="text-xs text-gray-600 mt-1">GPT-4, GPT-4 Vision</div>
-              </button>
-              
-              <button
-                type="button"
-                onClick={() => {
-                  setFormData({ ...formData, provider: 'gemini', model_name: 'gemini-1.5-pro' })
-                }}
-                className={`p-4 border-2 rounded-lg transition ${
-                  formData.provider === 'gemini'
-                    ? 'border-blue-500 bg-blue-50'
-                    : 'border-gray-300 hover:border-gray-400'
-                }`}
-              >
-                <div className="text-4xl mb-2">✨</div>
-                <div className="font-semibold">Google Gemini</div>
-                <div className="text-xs text-gray-600 mt-1">Gemini Pro, Flash</div>
-              </button>
-            </div>
-          </div>
-
-          {/* API Key */}
-          <div className="bg-white border border-gray-200 rounded-lg p-6">
-            <h3 className="text-lg font-semibold text-gray-900 mb-4">API Key</h3>
-            
+      <form onSubmit={handleSave}>
+        <div className="mb-6">
+          <h2 className="text-xl font-bold text-gray-900">Logo del Sistema</h2>
+          <div className="flex items-center gap-6 mt-2">
+            {logoUrl ? (
+              <img src={logoUrl} alt="Logo" className="h-20 w-auto rounded-xl border shadow" />
+            ) : (
+              <div className="h-20 w-20 bg-gray-200 rounded-xl flex items-center justify-center text-gray-400">Sin logo</div>
+            )}
             <div>
-              <label className="block text-sm font-medium text-gray-700 mb-2">
-                {formData.provider === 'openai' ? 'OpenAI API Key' : 'Google AI API Key'}
-              </label>
-              <input
-                type="password"
-                value={formData.api_key}
-                onChange={(e) => setFormData({ ...formData, api_key: e.target.value })}
-                className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-transparent"
-                placeholder={formData.provider === 'openai' ? 'sk-...' : 'AIza...'}
-                required
-              />
-              <p className="text-xs text-gray-500 mt-2">
-                {formData.provider === 'openai' ? (
-                  <>Obtén tu API key en <a href="https://platform.openai.com/api-keys" target="_blank" className="text-blue-600 hover:underline">OpenAI Platform</a></>
-                ) : (
-                  <>Obtén tu API key en <a href="https://makersuite.google.com/app/apikey" target="_blank" className="text-blue-600 hover:underline">Google AI Studio</a></>
-                )}
-              </p>
+              <input type="file" accept="image/*" onChange={handleLogoUpload} disabled={logoUploading} />
+              {logoUploading && <span className="ml-2 text-blue-600">Subiendo...</span>}
             </div>
           </div>
-
-          {/* Model Selection */}
-          <div className="bg-white border border-gray-200 rounded-lg p-6">
-            <h3 className="text-lg font-semibold text-gray-900 mb-4">Modelo de IA</h3>
-            
-            <div className="space-y-3">
-              {filteredModels.map((model) => (
-                <label
-                  key={model.id}
-                  className={`flex items-start p-4 border-2 rounded-lg cursor-pointer transition ${
-                    formData.model_name === model.id
-                      ? 'border-blue-500 bg-blue-50'
-                      : 'border-gray-200 hover:border-gray-300'
-                  }`}
-                >
-                  <input
-                    type="radio"
-                    name="model"
-                    value={model.id}
-                    checked={formData.model_name === model.id}
-                    onChange={(e) => setFormData({ ...formData, model_name: e.target.value })}
-                    className="mt-1 mr-3"
-                  />
-                  <div className="flex-1">
-                    <div className="font-semibold text-gray-900">{model.name}</div>
-                    <div className="text-sm text-gray-600 mt-1">{model.description}</div>
-                  </div>
-                </label>
-              ))}
-            </div>
-          </div>
-
-          {/* Current Status */}
-          {aiConfig && (
-            <div className="bg-green-50 border border-green-200 rounded-lg p-4">
-              <div className="flex items-start gap-3">
-                <span className="text-green-600 text-xl">✓</span>
-                <div>
-                  <div className="font-semibold text-green-900">Configuración Activa</div>
-                  <div className="text-sm text-green-700 mt-1">
-                    Proveedor: <strong className="capitalize">{aiConfig.provider}</strong> | 
-                    Modelo: <strong>{aiConfig.model_name}</strong>
-                  </div>
-                  <div className="text-xs text-green-600 mt-1">
-                    Configurado el {new Date(aiConfig.created_at).toLocaleDateString('es-ES')}
-                  </div>
-                </div>
-              </div>
-            </div>
-          )}
-
-          {/* Save Button */}
-          <div className="flex gap-3">
+          <p className="text-xs text-gray-500 mt-2">El logo se mostrará en el login y en la página principal.</p>
+        </div>
+        <div className="mb-6">
+          <h2 className="text-xl font-bold text-gray-900">Configuración de IA</h2>
+          <p className="text-sm text-gray-600 mt-1">Configura el proveedor y modelo de IA para análisis de imágenes</p>
+          <div className="flex gap-4 mt-4">
             <button
-              type="submit"
-              className="flex-1 px-6 py-3 bg-gradient-to-r from-indigo-600 to-purple-600 text-white rounded-lg hover:from-indigo-700 hover:to-purple-700 transition-all transform hover:scale-105 shadow-lg disabled:opacity-50 disabled:transform-none"
-              disabled={saving}
+              type="button"
+              onClick={() => setFormData({ ...formData, provider: 'openai', model_name: 'gpt-4o' })}
+              className={`p-4 border-2 rounded-lg transition ${formData.provider === 'openai' ? 'border-indigo-500 bg-indigo-50' : 'border-gray-300 hover:border-gray-400'}`}
             >
-              {saving ? 'Guardando...' : 'Guardar Configuración'}
+              <div className="text-4xl mb-2">🤖</div>
+              <div className="font-semibold">OpenAI</div>
+              <div className="text-xs text-gray-600 mt-1">GPT-4, GPT-4 Vision</div>
+            </button>
+            <button
+              type="button"
+              onClick={() => setFormData({ ...formData, provider: 'gemini', model_name: 'gemini-1.5-pro' })}
+              className={`p-4 border-2 rounded-lg transition ${formData.provider === 'gemini' ? 'border-blue-500 bg-blue-50' : 'border-gray-300 hover:border-gray-400'}`}
+            >
+              <div className="text-4xl mb-2">✨</div>
+              <div className="font-semibold">Google Gemini</div>
+              <div className="text-xs text-gray-600 mt-1">Gemini Pro, Flash</div>
             </button>
           </div>
-        </form>
-      )}
+        </div>
+        <div className="bg-white border border-gray-200 rounded-lg p-6 mb-6">
+          <h3 className="text-lg font-semibold text-gray-900 mb-4">API Key</h3>
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-2">
+              {formData.provider === 'openai' ? 'OpenAI API Key' : 'Google AI API Key'}
+            </label>
+            <input
+              type="password"
+              value={formData.api_key}
+              onChange={(e) => setFormData({ ...formData, api_key: e.target.value })}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+              placeholder={formData.provider === 'openai' ? 'sk-...' : 'AIza...'}
+              required
+            />
+            <p className="text-xs text-gray-500 mt-2">
+              {formData.provider === 'openai' ? (
+                <>Obtén tu API key en <a href="https://platform.openai.com/api-keys" target="_blank" className="text-blue-600 hover:underline">OpenAI Platform</a></>
+              ) : (
+                <>Obtén tu API key en <a href="https://makersuite.google.com/app/apikey" target="_blank" className="text-blue-600 hover:underline">Google AI Studio</a></>
+              )}
+            </p>
+          </div>
+        </div>
+        <div className="bg-white border border-gray-200 rounded-lg p-6 mb-6">
+          <h3 className="text-lg font-semibold text-gray-900 mb-4">Modelo de IA</h3>
+          <div className="space-y-3">
+            {filteredModels.map((model) => (
+              <label key={model.model_name} className={`flex items-center gap-3 p-3 border rounded-lg cursor-pointer transition ${formData.model_name === model.model_name ? 'border-indigo-500 bg-indigo-50' : 'border-gray-300 hover:border-gray-400'}`}>
+                <input
+                  type="radio"
+                  name="model_name"
+                  value={model.model_name}
+                  checked={formData.model_name === model.model_name}
+                  onChange={() => setFormData({ ...formData, model_name: model.model_name })}
+                  className="form-radio text-indigo-600"
+                />
+                <span className="font-semibold">{model.model_name}</span>
+                <span className="text-xs text-gray-500">{model.description}</span>
+              </label>
+            ))}
+          </div>
+        </div>
+        <div className="flex gap-3">
+          <button
+            type="submit"
+            className="flex-1 px-6 py-3 bg-gradient-to-r from-indigo-600 to-purple-600 text-white rounded-lg hover:from-indigo-700 hover:to-purple-700 transition-all transform hover:scale-105 shadow-lg disabled:opacity-50 disabled:transform-none"
+            disabled={saving}
+          >
+            {saving ? 'Guardando...' : 'Guardar Configuración'}
+          </button>
+        </div>
+      </form>
     </div>
-  )
+  );
 }
 
 function APITokensTab({ user }) {