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diff --git a/buscador_inventario.php b/buscador_inventario.php
new file mode 100644
index 0000000..48f4856
--- /dev/null
+++ b/buscador_inventario.php
@@ -0,0 +1,145 @@
+<?php
+session_start();
+if (!isset($_SESSION['user_id'])) {
+    header('Location: login.php');
+    exit;
+}
+require_once 'db/config.php';
+require_once 'layout_header.php';
+
+$codigo_unico_buscado = isset($_GET['codigo_unico']) ? trim($_GET['codigo_unico']) : '';
+$unidad_info = null;
+$error_message = '';
+
+if (!empty($codigo_unico_buscado)) {
+    try {
+        $db = db();
+        $stmt = $db->prepare(
+            "\n            SELECT 
+                ui.codigo_unico,
+                ui.estado,
+                ui.fecha_creacion,
+                ui.fecha_ingreso,
+                ui.fecha_salida,
+                ui.pedido_id,
+                p.nombre AS producto_nombre,
+                p.sku AS producto_sku
+            FROM unidades_inventario ui
+            JOIN products p ON ui.producto_id = p.id
+            WHERE ui.codigo_unico = :codigo_unico
+        ");
+        $stmt->bindParam(':codigo_unico', $codigo_unico_buscado, PDO::PARAM_STR);
+        $stmt->execute();
+        $unidad_info = $stmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$unidad_info) {
+            $error_message = "No se encontró ninguna unidad de inventario con el código \"" . htmlspecialchars($codigo_unico_buscado) . "\".";
+        }
+    } catch (PDOException $e) {
+        $error_message = "Error en la base de datos: " . $e->getMessage();
+    }
+}
+?>
+
+<div class="container mt-4">
+    <h1 class="mb-4">Buscador de Unidades de Inventario</h1>
+    <p>Ingresa o escanea el código de barras de una unidad individual para ver su historial y estado actual.</p>
+
+    <div class="card shadow-sm mb-4">
+        <div class="card-body">
+            <form action="buscador_inventario.php" method="GET" class="mb-3">
+                <div class="input-group">
+                    <input type="text" class="form-control form-control-lg" id="codigo_unico" name="codigo_unico" placeholder="Ej: AFS-0035" value="<?php echo htmlspecialchars($codigo_unico_buscado); ?>" required autofocus>
+                    <button class="btn btn-primary" type="submit">
+                        <i class="fas fa-search"></i> Buscar
+                    </button>
+                </div>
+            </form>
+        </div>
+    </div>
+
+    <?php if ($error_message): ?>
+        <div class="alert alert-warning">
+            <?php echo $error_message; ?>
+        </div>
+    <?php endif; ?>
+
+    <?php if ($unidad_info): ?>
+        <div class="card shadow-sm">
+            <div class="card-header">
+                <h5 class="mb-0">Resultados para: <?php echo htmlspecialchars($unidad_info['codigo_unico']); ?></h5>
+            </div>
+            <div class="card-body">
+                <div class="row">
+                    <div class="col-md-6">
+                        <h4>Información del Producto</h4>
+                        <table class="table table-bordered">
+                            <tr>
+                                <th style="width: 30%;">Nombre</th>
+                                <td><?php echo htmlspecialchars($unidad_info['producto_nombre']); ?></td>
+                            </tr>
+                            <tr>
+                                <th>SKU</th>
+                                <td><?php echo htmlspecialchars($unidad_info['producto_sku']); ?></td>
+                            </tr>
+                        </table>
+                    </div>
+                    <div class="col-md-6">
+                        <h4>Trazabilidad de la Unidad</h4>
+                        <table class="table table-bordered">
+                            <tr>
+                                <th style="width: 30%;">Estado Actual</th>
+                                <td>
+                                    <?php 
+                                    $estado = htmlspecialchars($unidad_info['estado']);
+                                    $badge_class = 'secondary';
+                                    if ($estado == 'En Almacén') $badge_class = 'success';
+                                    if ($estado == 'Vendido') $badge_class = 'danger';
+                                    if ($estado == 'Generado') $badge_class = 'info';
+                                    echo "<span class=\"badge bg-$badge_class\">$estado</span>";
+                                    ?>
+                                </td>
+                            </tr>
+                             <tr>
+                                <th>Pedido ID</th>
+                                <td>
+                                    <?php if ($unidad_info['pedido_id']): ?>
+                                        <a href="info_producto.php?id=<?php echo $unidad_info['pedido_id']; // Asumiendo que esta es la página de detalle de pedido ?>">
+                                            <?php echo $unidad_info['pedido_id']; ?>
+                                        </a>
+                                    <?php else: ?>
+                                        N/A
+                                    <?php endif; ?>
+                                </td>
+                            </tr>
+                        </table>
+                    </div>
+                </div>
+                 <div class="row">
+                    <div class="col-md-12">
+                        <h4>Historial de Fechas</h4>
+                        <table class="table table-sm table-bordered">
+                           <thead>
+                               <tr>
+                                   <th>Creación (Etiqueta)</th>
+                                   <th>Ingreso a Almacén</th>
+                                   <th>Salida (Venta)</th>
+                               </tr>
+                           </thead>
+                           <tbody>
+                               <tr>
+                                   <td><?php echo $unidad_info['fecha_creacion'] ? date('d/m/Y H:i:s', strtotime($unidad_info['fecha_creacion'])) : 'N/A'; ?></td>
+                                   <td><?php echo $unidad_info['fecha_ingreso'] ? date('d/m/Y H:i:s', strtotime($unidad_info['fecha_ingreso'])) : 'N/A'; ?></td>
+                                   <td><?php echo $unidad_info['fecha_salida'] ? date('d/m/Y H:i:s', strtotime($unidad_info['fecha_salida'])) : 'N/A'; ?></td>
+                               </tr>
+                           </tbody>
+                        </table>
+                    </div>
+                </div>
+            </div>
+        </div>
+    <?php endif; ?>
+
+</div>
+
+<?php require_once 'layout_footer.php'; ?>
diff --git a/layout_header.php b/layout_header.php
index 4215687..99c7a4c 100644
--- a/layout_header.php
+++ b/layout_header.php
@@ -97,6 +97,12 @@ $navItems = [
                     'text' => 'Inventario General',
                     'roles' => ['Administrador', 'admin', 'Control Logistico']
                 ],
+                'buscador_inventario' => [
+                    'url' => 'buscador_inventario.php',
+                    'icon' => 'fa-search-dollar',
+                    'text' => 'Buscador de Unidades',
+                    'roles' => ['Administrador', 'admin', 'Control Logistico', 'Asesor', 'Soporte Logistico']
+                ],
                 'inventario_por_sede' => [
                     'url' => 'inventario_por_sede.php',
                     'icon' => 'fa-search-location',