@php
    $customer = $customer ?? new \App\Models\Customer();
    $months = [
        1 => 'January', 2 => 'February', 3 => 'March', 4 => 'April',
        5 => 'May', 6 => 'June', 7 => 'July', 8 => 'August',
        9 => 'September', 10 => 'October', 11 => 'November', 12 => 'December',
    ];
@endphp
<div class="col-12">
    <label class="form-label fw-semibold"><i class="fas fa-birthday-cake me-1 text-warning"></i> Birthday</label>
    <div class="row g-2">
        <div class="col-md-3">
            <select name="birth_day" class="form-select @error('birth_day') is-invalid @enderror">
                <option value="">Day</option>
                @for($d = 1; $d <= 31; $d++)
                <option value="{{ $d }}" {{ (int) old('birth_day', $customer->birth_day ?? '') === $d ? 'selected' : '' }}>{{ $d }}</option>
                @endfor
            </select>
        </div>
        <div class="col-md-4">
            <select name="birth_month" class="form-select @error('birth_month') is-invalid @enderror">
                <option value="">Month</option>
                @foreach($months as $num => $label)
                <option value="{{ $num }}" {{ (int) old('birth_month', $customer->birth_month ?? '') === $num ? 'selected' : '' }}>{{ $label }}</option>
                @endforeach
            </select>
        </div>
        <div class="col-md-3">
            <input type="number" name="birth_year" class="form-control @error('birth_year') is-invalid @enderror"
                   value="{{ old('birth_year', $customer->birth_year ?? '') }}" placeholder="Year (optional)" min="1900" max="{{ date('Y') }}">
        </div>
    </div>
    @error('birth_day')<div class="text-danger small mt-1">{{ $message }}</div>@enderror
    <div class="form-text">Day + Month required. Year optional — Customer Insights reminder-এ use হবে।</div>
</div>