if(isset($_POST['save']) && $_SESSION['role'] === 'admin') {
    $id = $_POST['id'] ?? null;
    $title = $_POST['title'];
    $content = $_POST['content'];
    $image = $_POST['image_url'];

    if($id) {
        $stmt = $pdo->prepare("UPDATE news SET title=?, content=?, image_url=?, updated_at=NOW() WHERE id=?");
        $stmt->execute([$title, $content, $image, $id]);
    } else {
        $stmt = $pdo->prepare("INSERT INTO news (title, content, image_url) VALUES (?, ?, ?)");
        $stmt->execute([$title, $content, $image]);
    }

    // Обновляем HTML-файлы
    include 'generate_news_html.php';

    header('Location: admin.php');
    exit;
}