<?php
session_start();

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $password = $_POST['password'];

    // Verificar la contraseña
    if ($password === 'tu_contraseña_segura') {
        $_SESSION['authenticated'] = true;
        header('Location: protected.php');
        exit;
    } else {
        $error = "Contraseña incorrecta.";
    }
}
?>

<!DOCTYPE html>
<html lang="es">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Acceso Protegido</title>
</head>
<body>

    <h2>Ingrese la contraseña</h2>
    <?php if (isset($error)) echo "<p style='color:red;'>$error</p>"; ?>

    <form method="post" action="login.php">
        <label for="password">Contraseña:</label>
        <input type="password" id="password" name="password" required>
        <button type="submit">Acceder</button>
    </form>

</body>
</html>
