/* Boîte à outils interactive commune - Exercices Cycle 4
   Réutilise les variables --exo-* définies dans exercice-style.css.
   Fournit : indices progressifs, rappel de cours, tooltips, droite graduée
   cliquable, choix cliquables, glisser-déposer. */

/* --- Indices progressifs --- */
.exoi-hints { margin: 15px 0; }
.exoi-hint-btn {
    display: inline-flex; align-items: center; gap: 6px; min-height: var(--jm-cible);
    padding: 8px 16px; border: 2px solid var(--exo-warning);
    background: #fff8e1; color: #b26a00; border-radius: 20px;
    font-weight: 600; font-size: 0.85em; cursor: pointer;
    transition: all 0.2s;
}
.exoi-hint-btn:hover, .exoi-hint-btn:active  { background: var(--exo-warning); color: white; }
.exoi-hint-btn:disabled { opacity: 0.4; cursor: default; }
.exoi-hint-panel {
    display: none; margin-top: 10px; padding: 12px 16px;
    background: #fff8e1; border-left: 4px solid var(--exo-warning);
    border-radius: 8px; color: #6b4700; font-size: 0.95em;
}
.exoi-hint-panel.show { display: block; animation: exoiFadeIn 0.25s ease; }

/* --- Rappel de cours --- */
.exoi-course-btn {
    display: inline-flex; align-items: center; gap: 6px; min-height: var(--jm-cible);
    padding: 8px 16px; border: 2px solid var(--exo-primary);
    background: #eef0fd; color: var(--exo-primary); border-radius: 20px;
    font-weight: 600; font-size: 0.85em; cursor: pointer;
    transition: all 0.2s;
}
.exoi-course-btn:hover, .exoi-course-btn:active  { background: var(--exo-primary); color: white; }
.exoi-course-btn.active { background: var(--exo-primary); color: white; }
.exoi-course-panel {
    display: none; margin-top: 12px; padding: 18px 20px;
    background: #f8f9ff; border: 2px solid var(--exo-primary);
    border-radius: 12px; animation: exoiFadeIn 0.2s ease;
}
.exoi-course-panel.show { display: block; }
.exoi-course-body h4 { color: var(--exo-primary); margin-top: 15px; }
.exoi-course-body h4:first-child { margin-top: 0; }
.exoi-course-example {
    background: #f8f9fa; border-radius: 8px; padding: 10px 15px;
    margin: 8px 0; font-family: 'Courier New', monospace;
}

/* --- Tooltips (vocabulaire) --- */
.exoi-tooltip-term {
    border-bottom: 2px dotted var(--exo-primary);
    cursor: help; color: var(--exo-primary-dark); font-weight: 600;
}

/* --- Choix cliquables (QCM / sélection) --- */
.exoi-choices { display: flex; flex-wrap: wrap; gap: 10px; margin: 15px 0; }
.exoi-choice {
    min-height: var(--jm-cible);
    padding: 12px 20px; border: 2px solid #e0e0e0; border-radius: 10px;
    background: white; cursor: pointer; font-weight: 600; font-size: 1em;
    transition: all 0.15s; user-select: none;
}
.exoi-choice:hover, .exoi-choice:active  { border-color: var(--exo-primary); background: #f5f6ff; }
.exoi-choice.selected { border-color: var(--exo-primary); background: var(--exo-gradient); color: white; }
.exoi-choice.correct { border-color: var(--exo-success); background: #e8f5e9; color: #2e7d32; }
.exoi-choice.incorrect { border-color: var(--exo-danger); background: #ffebee; color: #c62828; }

/* --- Droite graduée cliquable --- */
.exoi-numberline-wrap { padding: 30px 10px 40px; overflow-x: auto; }
.exoi-numberline { position: relative; height: 60px; min-width: 100%; }
.exoi-numberline-axis {
    position: absolute; top: 30px; left: 0; right: 0; height: 3px;
    background: #333; border-radius: 2px;
}
.exoi-numberline-point {
    position: absolute; top: 15px; width: 32px; height: 32px;
    margin-left: -16px; border-radius: 50%; background: white;
    border: 3px solid #999; cursor: pointer; transition: all 0.15s;
    display: flex; align-items: center; justify-content: center;
}
.exoi-numberline-point:hover, .exoi-numberline-point:active  { border-color: var(--exo-primary); transform: scale(1.15); }
.exoi-numberline-point.selected { border-color: var(--exo-primary); background: var(--exo-gradient); }
.exoi-numberline-point.correct { border-color: var(--exo-success); background: var(--exo-success); }
.exoi-numberline-point.incorrect { border-color: var(--exo-danger); background: var(--exo-danger); }
.exoi-numberline-label {
    position: absolute; top: 46px; font-size: 0.8em; color: var(--jm-soft);
    transform: translateX(-50%); white-space: nowrap;
}
.exoi-numberline-tick {
    position: absolute; top: 26px; width: 2px; height: 10px;
    margin-left: -1px; background: #999;
}

/* --- Glisser-déposer --- */
.exoi-draggable {
    padding: 10px 18px; border-radius: 10px; background: var(--exo-gradient);
    color: white; font-weight: 700; cursor: grab; display: inline-block;
    user-select: none; touch-action: none;
}
.exoi-draggable.dragging { opacity: 0.5; }
.exoi-dropzone {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 70px; min-height: 44px; border: 3px dashed #ccc;
    border-radius: 10px; margin: 0 4px; transition: all 0.15s;
}
.exoi-dropzone.dragover { border-color: var(--exo-primary); background: #eef0fd; }
.exoi-dropzone.filled { border-style: solid; border-color: var(--exo-primary); }

/* --- Saisie au clavier : toujours visible, c'est la réponse par défaut --- */
.exoi-answer-input {
    width: 140px; padding: 10px 14px; border: 2px solid #ddd; border-radius: 8px;
    font-size: 1.1em; font-weight: 600; text-align: center;
}
.exoi-answer-input:focus { border-color: var(--exo-primary); outline: none; }
/* Masque les flèches +/- natives du navigateur (input type=number) : pas utiles ici */
.exoi-answer-input::-webkit-outer-spin-button,
.exoi-answer-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.exoi-answer-input[type=number] { -moz-appearance: textfield; }

@keyframes exoiFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Tableau de proportionnalité à trou --- */
.exoi-tableau-trous { border-collapse: collapse; margin: 10px 0 15px; }
.exoi-tableau-trous th, .exoi-tableau-trous td {
    border: 2px solid #e0e0e0; padding: 10px 16px; text-align: center;
}
.exoi-tableau-trous th {
    background: #f8f9fa; text-align: left; font-weight: 700; color: #555; white-space: nowrap;
}
.exoi-tableau-trous td { font-weight: 700; font-size: 1.1em; color: var(--exo-primary-dark); }
.exoi-tableau-trous .exoi-answer-input { width: 90px; }

/* --- Historique des sessions précédentes (sur la page de l'exercice) --- */
/* ------------------------------------------------------- historique des sessions
   Replié par défaut et placé en bas du contenu : un élève qui ouvre un exercice doit voir
   la question, pas son propre passé. Le dépliage est natif (<details>) et non piloté par
   JavaScript, parce que quarante des soixante-seize pages d'exercice ne chargent pas
   js/exercice_interactif.js — les boutons y étaient morts. */
.exoi-historique {
    margin-top: 30px;
    padding-top: 14px;
    border-top: 1px solid #e6e6e6;
}
.exoi-historique > summary {
    cursor: pointer;
    padding: 6px 2px;
    font-size: .97em;
    font-weight: 600;
    color: var(--jm-soft);
}
.exoi-historique > summary:hover, .exoi-historique > summary:active  { color: #222; }
.exoi-historique[open] > summary { margin-bottom: 8px; }
.exoi-histo-compte { font-size: .86em; color: var(--jm-soft); margin: 0 0 10px; }

.exoi-histo-session {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #fafafa;
    margin-bottom: 10px;
}
.exoi-histo-session > summary {
    cursor: pointer;
    padding: 9px 12px;
    font-size: .92em;
    color: #444;
}
.exoi-histo-session > summary:hover, .exoi-histo-session > summary:active  { background: #f1f1f1; }
.exoi-histo-session[open] > summary { border-bottom: 1px solid #e0e0e0; background: #f5f5f5; }
.exoi-histo-session > .qcard { margin: 10px; }
.exoi-histo-sansdetail { margin: 12px; font-size: .88em; color: var(--jm-soft); font-style: italic; }
/* Une carte sans verdict connu : ni verte ni rouge. Dire « faux » sans le savoir serait
   pire que ne rien dire. */
.exoi-histo-session > .qcard:not(.correct):not(.incorrect) {
    border-left: 4px solid #ccc;
    background: #f7f7f7;
}

.exoi-historique-title { font-size: 1.05em; color: #555; margin-bottom: 10px; }
.exoi-histo-btn {
    display: block; width: 100%; text-align: left;
    padding: 10px 16px; margin-bottom: 6px; border: 2px solid #e0e0e0;
    background: white; border-radius: 10px; font-weight: 600; color: #444;
    cursor: pointer; transition: all 0.15s;
}
.exoi-histo-btn:hover, .exoi-histo-btn:active  { border-color: var(--exo-primary); }
.exoi-histo-btn.active { border-color: var(--exo-primary); background: #eef0fd; }
.exoi-historique .exoi-course-panel { border-color: #ddd; background: white; margin-bottom: 14px; }

/* --- Détail question par question (réutilisé de session_detail.php) --- */
.qcard { background: #f8f9fa; border-radius: 10px; padding: 18px; margin-bottom: 12px; border-left: 4px solid var(--exo-primary); }
.qcard.correct { border-left-color: var(--exo-success); }
.qcard.incorrect { border-left-color: var(--exo-danger); }
.qcard .qtitle { font-weight: bold; margin-bottom: 10px; display: flex; justify-content: space-between; gap: 10px; }
.qcard .qreponses { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.qcard .qbox { padding: 10px; border-radius: 8px; background: white; }
.qcard.correct .qbox.eleve { background: #c8e6c9; }
.qcard.incorrect .qbox.eleve { background: #ffcdd2; }
@media (max-width: 600px) { .qcard .qreponses { grid-template-columns: 1fr; } }

/* --- Légende diagramme circulaire --- */
.exoi-legende { display: flex; flex-direction: column; gap: 6px; }
.exoi-legende-item { font-size: 0.95em; color: #333; }
.exoi-legende-pastille { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 6px; vertical-align: middle; }

/* --- Avertissement "toutes les reponses ne sont pas remplies" (initAnswerFormGuard) --- */
.exoi-form-warning {
    display: none; background: #fff3cd; color: #856404; border: 1px solid #ffe69c;
    border-radius: 10px; padding: 10px 16px; margin-bottom: 16px; font-weight: 600;
}
.exoi-form-warning.show { display: block; animation: exoiWarnPulse 0.3s ease; }
@keyframes exoiWarnPulse { from { transform: scale(0.97); opacity: 0.5; } to { transform: scale(1); opacity: 1; } }

/* ==================================================================
   CONFORT TACTILE ET BRIQUES DE JEU                    (2026-08-15)
   Ajouts issus de la refonte du Compte est Bon, versés ici pour que
   les 34 exercices existants en bénéficient sans être modifiés.
   Chargée après exercice-style.css : ces règles priment.
   ================================================================== */

:root {
    --exo-relief:      4px;     /* épaisseur du relief des boutons */
    --exo-tuile:       96px;    /* taille d'une tuile manipulable */
    --exo-rayon:       16px;
    --exo-gris:        #eeecf8;
    --exo-gris-bord:   #cdc9e6;
    --exo-violet-pale: #e4e1f7;
    --exo-encre:       #4a5568;
    --exo-vert-fonce:  #2f855a;
    --exo-orange-fonce:#dd6b20;
    --exo-primary-fonce:var(--jm-accent-dark);
}

/* Sans cela, un bouton en width:100% avec du padding deborde de sa carte */
.exo-body *, .exo-card * { box-sizing: border-box; }

/* --- En-tete d'exercice : titre a gauche, indicateur a droite --- */
.exoi-entete {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; margin-bottom: 18px; flex-wrap: wrap;
}
.exoi-titre { color: var(--exo-primary); font-size: 1.5em; margin: 0; }

/* --- Champs de saisie : utilisables au doigt --- */
.exoi-answer-input {
    width: 160px; padding: 16px 14px;
    border: 2px solid var(--exo-gris-bord); border-radius: 12px;
    font-size: 1.35em; font-weight: 700;
}
.exoi-answer-input:focus {
    border-color: var(--exo-primary);
    box-shadow: 0 0 0 3px rgba(var(--jm-accent-rgb),.18);
}
.exoi-answer-input.juste { border-color: var(--exo-success); background: #e8f8ee; }
.exoi-answer-input.faux  { border-color: var(--exo-danger);  background: #fdecec; }

/* --- Boutons en relief : ils s'enfoncent au toucher --- */
.exo-submit-btn, .exo-nav-btn, .exoi-btn {
    border-radius: var(--exo-rayon);
    padding: 18px 24px; font-size: 1.15em; font-weight: 700;
    border: none; cursor: pointer; font-family: inherit;
    box-shadow: 0 var(--exo-relief) 0 var(--exo-gris-bord);
    transition: transform .12s, background .12s;
}
.exo-submit-btn:active, .exo-nav-btn:active, .exoi-btn:active {
    transform: translateY(2px); box-shadow: 0 2px 0 var(--exo-gris-bord);
}
.exoi-btn            { background: var(--exo-gris); color: var(--exo-encre); display: block; width: 100%; text-align: center; text-decoration: none; }
.exoi-btn--principal { background: var(--exo-primary); color: #fff; box-shadow: 0 var(--exo-relief) 0 var(--exo-primary-fonce); }
.exoi-btn--valider   { background: var(--exo-success); color: #fff; box-shadow: 0 var(--exo-relief) 0 var(--exo-vert-fonce); font-size: 1.3em; }
.exoi-btn--attention { background: var(--exo-warning); color: #fff; box-shadow: 0 var(--exo-relief) 0 var(--exo-orange-fonce); }
.exoi-btn:disabled, .exoi-btn.exoi-inactif { opacity: .4; cursor: default; }
.exoi-actions { display: grid; gap: 12px; }
.exoi-duo  { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.exoi-duo--solo { grid-template-columns: 1fr; }

/* --- Tuiles manipulables (nombres, plaques) --- */
.exoi-tuiles { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 18px; }
.exoi-tuile {
    width: var(--exo-tuile); height: var(--exo-tuile);
    border: none; border-radius: 20px;
    background: linear-gradient(180deg, #808bec, var(--exo-primary));
    color: #fff; font-size: 2.1em; font-weight: 800; font-family: inherit;
    display: flex; align-items: center; justify-content: center; cursor: pointer;
    box-shadow: 0 var(--exo-relief) 0 var(--exo-primary-fonce), inset 0 2px 0 rgba(255,255,255,.38);
    transition: transform .12s, box-shadow .12s, background .12s;
}
.exoi-tuile--resultat  { background: linear-gradient(180deg, #4cb87e, var(--exo-success)); box-shadow: 0 var(--exo-relief) 0 var(--exo-vert-fonce), inset 0 2px 0 rgba(255,255,255,.38); }
.exoi-tuile--selection { background: linear-gradient(180deg, #ff9a5c, var(--jm-warn)); box-shadow: 0 8px 0 #b84d05, inset 0 2px 0 rgba(255,255,255,.4); transform: translateY(-8px) scale(1.07); }
.exoi-tuile:active     { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0,0,0,.25); }
@keyframes exoiApparait { from { transform: scale(.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.exoi-tuile--neuve { animation: exoiApparait .28s ease-out; }

/* --- Grille d'opérateurs --- */
.exoi-operateurs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.exoi-op {
    height: 78px; border: none; border-radius: var(--exo-rayon);
    background: var(--exo-violet-pale); color: var(--exo-primary-fonce);
    font-size: 2.1em; font-weight: 800; font-family: inherit; cursor: pointer;
    box-shadow: 0 var(--exo-relief) 0 var(--exo-gris-bord);
    transition: background .12s, transform .12s;
}
.exoi-op--actif { background: var(--exo-warning); color: #fff; box-shadow: 0 var(--exo-relief) 0 var(--exo-orange-fonce); transform: translateY(-3px); }
.exoi-op:active { transform: translateY(2px); box-shadow: 0 2px 0 var(--exo-gris-bord); }

/* --- Ardoise : zone de travail en pointillés --- */
.exoi-ardoise {
    display: flex; align-items: center; justify-content: center; gap: 12px;
    background: #faf9fd; border: 2px dashed var(--exo-gris-bord); border-radius: var(--exo-rayon);
    padding: 14px; margin-bottom: 16px; min-height: 74px;
    font-size: 2em; font-weight: 800; color: var(--exo-encre);
    font-variant-numeric: tabular-nums;
    transition: min-height .18s, padding .18s, font-size .18s;
}
.exoi-ardoise--repos { min-height: 0; padding: 9px; font-size: 1.05em; font-weight: 600; color: var(--jm-soft); }
.exoi-vide { color: var(--exo-gris-bord); }

/* --- Encarts d'information (cible, meilleur score…) --- */
.exoi-bandeau { display: flex; gap: 14px; margin-bottom: 20px; }
.exoi-encart {
    flex: 1; background: var(--exo-gris); padding: 18px; border-radius: 18px;
    text-align: center; display: flex; flex-direction: column; justify-content: center;
}
.exoi-encart--vedette { flex: 2; color: #fff; background: linear-gradient(135deg, var(--jm-accent), var(--jm-accent-dark)); }
.exoi-encart--gagne   { background: #c6f6d5; }
.exoi-encart--gagne .exoi-encart-valeur { color: #22543d; }
.exoi-encart-label  { font-size: .9em; color: var(--jm-soft); }
.exoi-encart--vedette .exoi-encart-label  { color: #fff; opacity: .95; }
.exoi-encart-valeur { font-size: 2em; font-weight: 800; color: var(--exo-encre); line-height: 1.1; }
.exoi-encart--vedette .exoi-encart-valeur { font-size: 3.4em; color: #fff; }
.exoi-encart-note   { font-size: .85em; color: var(--jm-soft); }

/* --- Messages --- */
.exoi-message { padding: 14px; border-radius: 14px; margin-bottom: 16px; text-align: center; font-size: 1.05em; font-weight: 600; }
.exoi-message--info   { background: #bee3f8; color: #2a4365; }
.exoi-message--souci  { background: #fed7d7; color: #822727; }
.exoi-message--gagne  { background: #c6f6d5; color: #22543d; }
.exoi-message--alerte { background: #feebc8; color: #7b341e; }

/* --- Écran de résultat --- */
.exoi-score { font-size: 4.4em; font-weight: 800; color: var(--exo-primary); line-height: 1; text-align: center; }
.exoi-score span { font-size: .4em; color: var(--jm-soft); }
.exoi-verdict { font-size: 1.5em; font-weight: 700; margin: 16px 0; padding: 16px; border-radius: var(--exo-rayon); text-align: center; }
.exoi-verdict--parfait { background: #c6f6d5; color: #22543d; }
.exoi-verdict--bien    { background: #fefcbf; color: #744210; }
.exoi-verdict--moyen   { background: #feebc8; color: #7b341e; }
.exoi-recap { display: flex; justify-content: center; gap: 26px; margin: 20px 0; flex-wrap: wrap; }
.exoi-recap-cle    { font-size: .85em; color: var(--jm-soft); }
.exoi-recap-valeur { font-size: 1.9em; font-weight: 800; color: var(--exo-encre); }

/* --- Sélecteur de niveau --- */
.exoi-niveaux { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.exoi-niveau { min-height: var(--jm-cible); display: flex; align-items: center; justify-content: center; padding: 12px 8px; border-radius: 14px; background: var(--exo-gris); color: var(--exo-encre); text-decoration: none; text-align: center; font-weight: 700; font-size: .95em; }
.exoi-niveau--actif { background: var(--exo-primary); color: #fff; }

/* --- Utilitaires --- */
.exoi-cache { display: none !important; }
@keyframes exoiTriomphe { 0% { transform: scale(1); } 35% { transform: scale(1.14); } 60% { transform: scale(.97); } 100% { transform: scale(1); } }
.exoi-triomphe { animation: exoiTriomphe .5s ease-out; }

@media (max-width: 560px) {
    :root { --exo-tuile: 74px; }
    .exoi-bandeau { flex-direction: column; }
    .exoi-tuile { font-size: 1.7em; border-radius: 16px; }
    .exoi-duo { grid-template-columns: 1fr; }
    .exoi-encart--vedette .exoi-encart-valeur { font-size: 2.8em; }
}

/* --- Bloc de liste (historique de calculs, correction) --- */
.exoi-bloc { background: #faf9fd; border-radius: var(--exo-rayon); padding: 18px; margin-bottom: 16px; text-align: left; }
.exoi-bloc h3 { font-size: .95em; color: var(--exo-primary); margin: 0 0 10px; text-transform: uppercase; letter-spacing: .04em; }
.exoi-bloc ul { margin: 0; padding: 0; }
.exoi-bloc li { list-style: none; font-size: 1.3em; font-weight: 700; color: var(--exo-encre); padding: 5px 0; font-variant-numeric: tabular-nums; }
.exoi-chrono { font-size: 1.15em; font-weight: 700; color: var(--jm-soft); font-variant-numeric: tabular-nums; }
.exoi-sous-titre { font-size: .9em; color: var(--jm-soft); font-weight: 600; margin-bottom: 8px; }

/* Variante large : pour les exercices qui embarquent un outil (GeoGebra, canvas étendu) */
.exo-container--large { max-width: 1040px; }