{{-- Choix unique presente en cartes (voir contrat : name="reponses[<cle>]"). --}}
@php
    $cle = $champ['cle'] ?? '';
    $valeur = old("reponses.{$cle}");
    $aErreur = $errors->has("reponses.{$cle}");
@endphp
<fieldset class="formulaire-public__champ" data-champ="{{ $cle }}">
    <legend class="formulaire-public__legende">
        {{ $champ['label'] ?? $cle }}@if ($champ['obligatoire'] ?? false)<span class="formulaire-public__req"> *</span>@endif
    </legend>
    <div class="formulaire-public__options-cartes">
        @foreach ((array) ($champ['options'] ?? []) as $index => $option)
            <label class="formulaire-public__carte-choix">
                <input
                    type="radio"
                    name="reponses[{{ $cle }}]"
                    value="{{ $option['valeur'] ?? '' }}"
                    @checked($valeur === ($option['valeur'] ?? null))
                    @if (($champ['obligatoire'] ?? false) && $index === 0) required @endif
                    @if ($aErreur) aria-invalid="true" aria-describedby="champ-{{ $cle }}-erreur" @endif
                >
                <span>{{ $option['libelle'] ?? ($option['valeur'] ?? '') }}</span>
            </label>
        @endforeach
    </div>
    @if (! empty($champ['aide']))
        <span class="formulaire-public__aide">{{ $champ['aide'] }}</span>
    @endif
    @error("reponses.{$cle}")<span id="champ-{{ $cle }}-erreur" class="formulaire-public__erreur" role="alert">{{ $message }}</span>@enderror
</fieldset>