/* Calculatrice de fractions : styles propres à l'outil. */
.o-fractions-modes { display: flex; flex-wrap: wrap; gap: 8px; }
.o-fractions-modes .btn { min-height: 42px; border-radius: 999px; font-weight: 600; }
.atelier .o-fractions-modes .btn[aria-pressed="true"], .atelier .o-fractions-ops .btn[aria-pressed="true"] { background: var(--marque); border-color: var(--marque); color: var(--sur-marque); }
.o-fractions-aide { margin: 12px 0; color: var(--texte-2); font-size: .92rem; }
.o-fractions-ligne { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 18px; padding: 8px 0; }
.o-fractions-saisie { margin: 0; padding: 0; border: 0; min-width: 0; }
.o-fractions-saisie legend { margin: 0 auto 6px; padding: 0; font-size: .85rem; font-weight: 600; color: var(--texte-2); text-align: center; }
.o-fractions-cases { display: flex; align-items: center; gap: 8px; }
.o-fractions-pile { display: flex; flex-direction: column; align-items: stretch; gap: 6px; width: 104px; }
.o-fractions-pile > i { display: block; height: 3px; border-radius: 2px; background: var(--texte); }
.o-fractions-ent { width: 64px; }
.o-fractions-cases input { width: 100%; min-height: 46px; padding-inline: 6px; text-align: center; font: 600 1.2rem var(--mono); }
.o-fractions-ent input { min-height: 54px; font-size: 1.35rem; }
.o-fractions-cases input::placeholder { font: 500 .78rem var(--police); color: var(--texte-2); opacity: .8; }
.o-fractions-ops { display: grid; grid-template-columns: repeat(2, 46px); gap: 6px; }
.o-fractions-ops .btn { min-height: 46px; padding: 0; font: 700 1.35rem var(--mono); }
.o-fractions-vs { font: 700 1.6rem var(--mono); color: var(--texte-2); }
.o-fractions-champ { display: flex; flex-direction: column; gap: 4px; margin-top: 14px; font-size: .88rem; color: var(--texte-2); }
.o-fractions-champ input { min-height: 48px; font: 600 1.25rem var(--mono); color: var(--texte); }
.o-fractions input[aria-invalid="true"] { border-color: var(--erreur-texte); outline: 1px solid var(--erreur-texte); }
.o-fractions input:focus-visible { outline: 3px solid var(--marque); outline-offset: 0; }
.o-fractions .o-fractions-erreur { margin: 10px 0 0; color: var(--erreur-texte); font-size: 1rem; }
.o-fractions .o-fractions-erreur:empty { display: none; }

/* Écriture fractionnaire */
.o-fractions-expr { display: inline-flex; flex-wrap: wrap; align-items: center; gap: .3em .4em; max-width: 100%; vertical-align: middle; }
.o-fractions-expr > span { overflow-wrap: anywhere; }
.o-fractions-nb { display: inline-flex; align-items: center; gap: .12em; }
.o-fractions-entier { margin-right: .1em; }
.o-fractions-f { display: inline-flex; flex-direction: column; align-items: center; line-height: 1.15; font-size: .92em; text-align: center; }
.o-fractions-f > span { padding: 0 .2em; overflow-wrap: anywhere; }
.o-fractions-f > .o-fractions-den { align-self: stretch; border-top: 2px solid currentColor; }
.o-fractions-op { font-weight: 700; }

.o-fractions-resultat { display: flex; flex-direction: column; gap: 6px; margin-top: 14px; padding: 12px 14px; border-radius: var(--rayon-petit); background: var(--ok-fond); color: var(--ok-texte); }
.o-fractions-resultat > span { font-size: .85rem; font-weight: 600; }
.o-fractions-resultat output { font: 700 1.4rem/1.4 var(--mono); overflow-wrap: anywhere; }
.o-fractions-resultat dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 8px 16px; margin: 4px 0 0; }
.o-fractions-resultat dl:empty { display: none; }
.o-fractions-resultat dt { font-size: .8rem; font-weight: 600; }
.o-fractions-resultat dd { margin: 2px 0 0; font: 600 1.05rem var(--mono); overflow-wrap: anywhere; }
.o-fractions-calcul { margin-top: 12px; padding: 12px 14px; border-radius: var(--rayon-petit); background: var(--surface-2); }
.o-fractions-calcul > strong { display: block; margin-bottom: 6px; font-size: .88rem; font-weight: 600; color: var(--texte-2); }
.o-fractions-calcul ol { margin: 0; padding-left: 1.5em; }
.o-fractions-calcul li { margin-bottom: 10px; }
.o-fractions-calcul li p { margin: 0 0 4px; font-size: .95rem; }
.o-fractions-calcul li .o-fractions-expr { display: flex; margin: 2px 0 6px; font: 600 1.05rem/1.4 var(--mono); }
.o-fractions-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 14px 0; }
.o-fractions-actions .btn-outline { min-height: 42px; }
.o-fractions .prereglages .btn { font-family: var(--mono); }
.o-fractions .o-fractions-prive { display: block; margin-top: 16px; }
@media (max-width: 640px) {
  .o-fractions-modes .btn { flex: 1 1 auto; padding-inline: 12px; }
  .o-fractions-ligne { gap: 10px; }
  .o-fractions-pile { width: 84px; }
  .o-fractions-ent { width: 52px; }
  .o-fractions-ops { grid-template-columns: repeat(4, 46px); order: -1; flex: 1 1 100%; justify-content: center; }
  .o-fractions-resultat output { font-size: 1.2rem; }
}