@if($resultsGrouped->isEmpty())
    <div class="alert alert-warning">No results found for this exam.</div>
@else
    <div class="table-responsive">
        <table class="table table-bordered table-striped">
            <thead>
                <tr>
                    <th>Student</th>
                    <th>Subject</th>
                    <th>Obtained</th>
                    <th>Grade</th>
                    <th>Grade Point</th>
                    <th>Remarks</th>
                </tr>
            </thead>
            <tbody>
                @foreach($resultsGrouped as $studentId => $rows)
                    @php
                        $first = true;
                        $student = $rows->first()->student; // may be null safety
                    @endphp

                    @foreach($rows as $row)
                        <tr>
                            @if($first)
                                <td rowspan="{{ $rows->count() }}" class="text-start">
                                    <div class="student-name">{{ $student->full_name ?? 'Student #'.$studentId }}</div>
                                    <div class="small">Roll: {{ $student->roll ?? '-' }}</div>
                                </td>
                                @php $first = false; @endphp
                            @endif

                            <td class="text-start">{{ $row->subject->name ?? '—' }}</td>
                            <td>{{ $row->total_obtained ?? '-' }}</td>
                            <td>{{ $row->grade ?? '-' }}</td>
                            <td>{{ $row->grade_point ?? '-' }}</td>
                            <td>{{ $row->remarks ?? '-' }}</td>
                        </tr>
                    @endforeach
                @endforeach
            </tbody>
        </table>
    </div>
@endif