echo '<div style="background:#ffe; color:#000; padding:10px; border:1px solid #cc0; margin:20px 0;">';
echo "<h3>🔎 Debug: Aktuella grupper för turnering ID $tournament_id</h3>";

$stmt = $conn->prepare("
    SELECT groupNumber, player1_id, player2_id 
    FROM ttranking_matches 
    WHERE tournament_id = ? 
    ORDER BY groupNumber ASC, match_id ASC
");
$stmt->bind_param("i", $tournament_id);
$stmt->execute();
$res2 = $stmt->get_result();

$currentGroup = null;
while ($row = $res2->fetch_assoc()) {
    if ($row['groupNumber'] !== $currentGroup) {
        if ($currentGroup !== null) echo '</ul>';
        $currentGroup = $row['groupNumber'];
        echo "<strong>Pulje " . $currentGroup . "</strong><ul>";
    }
    echo "<li>Match mellan spelare ID " . $row['player1_id'] . " och " . $row['player2_id'] . "</li>";
}
if ($currentGroup !== null) echo '</ul>';

echo '</div>';
$stmt->close();