/* ============================================================
   Tuto-CRPE — engine.css
   Styles du moteur d'exercices (francais-exercices.html,
   maths-exercices.html) : configuration, question, feedback,
   écran de fin. S'appuie sur les variables de base.css.
   ============================================================ */

/* ============================ CONFIGURATION ============================ */
.cfg-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.cfg-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 28px;
}
@media (max-width: 720px) { .cfg-grid { grid-template-columns: 1fr; } }

.cfg-field label {
  display: block;
  font-weight: 600;
  font-size: .92rem;
  margin-bottom: 8px;
}
.cfg-field select {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 14px;
  width: 100%;
}
.cfg-field select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--ring);
}

.cfg-examen {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--warn-soft);
  border: 1px solid color-mix(in srgb, var(--warn) 25%, transparent);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: .92rem;
  color: var(--warn-soft-text);
}
.cfg-examen input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--warn);
  flex: none;
}

.cfg-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: .9rem;
  color: var(--muted);
}
.cfg-meta strong { color: var(--text); }

/* ============================ SESSION / QUESTION ============================ */
.q-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.q-count { font-weight: 700; font-size: .95rem; }
.q-badges { display: inline-flex; gap: 6px; flex-wrap: wrap; }
.q-score { font-weight: 700; color: var(--primary-soft-text); }

.badge-diff {
  background: var(--accent-soft);
  color: var(--accent-soft-text);
}

.q-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-bottom: 20px;
}
.q-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--gradient);
  border-radius: 999px;
  transition: width .3s ease;
}

.q-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 640px) { .q-card { padding: 20px; } }

.q-enonce {
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.q-phrase {
  font-size: 1.25rem;
  line-height: 2.1;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 8px;
}
.q-phrase mark {
  background: var(--accent-soft);
  color: var(--accent-soft-text);
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 700;
}
.q-note {
  font-size: .9rem;
  color: var(--warn-soft-text);
  margin: 8px 0 0;
}

/* --- QCM --- */
.opts { display: grid; gap: 10px; margin-top: 18px; }
.opt {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  cursor: pointer;
  font-size: .98rem;
  transition: border-color .15s ease, background .15s ease;
}
.opt:hover { border-color: var(--primary); background: var(--primary-soft); }
.opt input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  flex: none;
}
.opt-bonne {
  border-color: var(--success) !important;
  background: var(--success-soft) !important;
}
.opt input:disabled + span { opacity: .85; }

/* --- Saisie --- */
.saisie { margin-top: 18px; }
.saisie input {
  font: inherit;
  font-size: 1.15rem;
  color: var(--text);
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 4px;
  padding: 14px 18px;
  width: 100%;
  max-width: 480px;
}
.saisie input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--ring);
}
.saisie-ok { border-color: var(--success) !important; background: var(--success-soft); }
.saisie-kof { border-color: var(--danger) !important; background: var(--danger-soft); }
.indice {
  font-size: .9rem;
  color: var(--muted);
  margin: 10px 0 0;
}

/* --- Vrai / Faux --- */
.vf-list { margin-top: 18px; display: grid; gap: 10px; }
.vf-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.vf-texte { font-size: .98rem; }
.vf-btns { display: inline-flex; gap: 6px; }
.vf-btn {
  font: inherit;
  font-size: .88rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.vf-btn:hover { border-color: var(--primary); }
.vf-btn.on[data-val="vrai"] {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.vf-btn.on[data-val="faux"] {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.vf-row.vf-bonne { border-color: var(--success); background: var(--success-soft); }
.vf-row.vf-mauvaise { border-color: var(--danger); background: var(--danger-soft); }

/* --- Clic-mot --- */
.clic-note { font-size: .9rem; color: var(--muted); margin-top: 14px; }
.word-btn {
  font: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  padding: 2px 4px;
  margin: 0 1px;
  border-radius: 2px;
  border-bottom: 2px dashed color-mix(in srgb, var(--primary) 45%, transparent);
  transition: background .15s ease;
}
.word-btn:hover { background: var(--primary-soft); }
.word-btn.sel {
  background: var(--primary-soft);
  border-bottom-style: solid;
  font-weight: 700;
  color: var(--primary-soft-text);
}

/* --- Actions & feedback --- */
.q-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}
.q-feedback { margin-top: 18px; }
.fb {
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: .95rem;
}
.fb strong { display: inline-block; margin-bottom: 4px; }
.fb p { margin: 8px 0 0; }
.fb-ok {
  background: var(--success-soft);
  color: var(--success-soft-text);
  border: 1px solid color-mix(in srgb, var(--success) 25%, transparent);
}
.fb-kof {
  background: var(--danger-soft);
  color: var(--danger-soft-text);
  border: 1px solid color-mix(in srgb, var(--danger) 25%, transparent);
}
.fb-attend {
  background: var(--warn-soft);
  color: var(--warn-soft-text);
  border: 1px solid color-mix(in srgb, var(--warn) 25%, transparent);
}
.fb-votre { font-size: .9rem; margin-top: 6px; }
.fb-exp { font-weight: 400; }
.fb-lecon {
  display: inline-flex;
  margin-top: 10px;
  font-weight: 700;
  font-size: .92rem;
}

/* ============================ ÉCRAN DE FIN ============================ */
.fin-score {
  text-align: center;
  padding: 32px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
}
.fin-medal { font-size: 3.2rem; line-height: 1; margin-bottom: 12px; }
.fin-score h2 { margin-bottom: 8px; }
.fin-pct { font-size: 1.5rem; font-weight: 800; color: var(--primary-soft-text); margin-bottom: 6px; }
.fin-pct span { font-size: 1rem; color: var(--muted); font-weight: 600; }
.fin-msg { color: var(--muted); margin-bottom: 10px; }
.fin-best { font-size: .95rem; }

.fin-recaps { margin-bottom: 28px; }
.fin-recaps h3, .fin-table-wrap h3 { margin-bottom: 14px; }
.recaps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.recap-card {
  background: var(--primary-soft);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-sm);
}
.recap-card::before {
  content: ' À RETENIR';
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--primary-soft-text);
  display: block;
  margin-bottom: 8px;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--primary);
}
.recap-card h4 { margin: 0; font-size: 1rem; }
.recap-points {
  margin: 0;
  padding-left: 20px;
  font-size: .9rem;
  display: grid;
  gap: 4px;
}
.recap-astuce { margin: 0; font-size: .88rem; }
.recap-lien { align-self: flex-start; margin-top: 4px; }

.fin-table-wrap { margin-bottom: 28px; overflow-x: auto; }
.fin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.fin-table th, .fin-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.fin-table thead th {
  background: var(--surface);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
}
.fin-table tbody tr:last-child td { border-bottom: none; }
.td-num { font-weight: 700; white-space: nowrap; }
.td-pts { white-space: nowrap; font-weight: 600; }
.td-ok { color: var(--success-soft-text); }
.td-kof { color: var(--danger-soft-text); }
.row-kof .td-q { color: var(--danger-soft-text); }
.row-ok .td-q { color: var(--success-soft-text); }
.td-q { font-size: .88rem; }
.td-ans { min-width: 150px; font-size: .88rem; }
.td-exp { min-width: 220px; font-size: .88rem; }

/* ============================ CONFETTIS ============================ */
.confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  width: 10px;
  height: 20px;
  border-radius: 2px;
  animation: confetti-fall 1.5s ease-out forwards;
}
@keyframes confetti-fall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}
@keyframes applause-bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

/* ============================ CALCULATRICE ============================ */
.calc-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s ease, transform .15s ease;
}
.calc-toggle:hover { background: var(--primary-hover); transform: scale(1.05); }
.calc-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 1000;
  display: none;
}
.calc-overlay.open { display: block; }
.calc-panel {
  position: fixed;
  bottom: 0;
  right: 0;
  width: 320px;
  max-width: 90vw;
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  border-right: none;
  border-radius: var(--radius-lg) 0 0 0;
  padding: 20px;
  z-index: 1001;
  display: none;
  box-shadow: var(--shadow);
}
.calc-panel.open { display: block; }
.calc-display {
  width: 100%;
  font-size: 1.5rem;
  text-align: right;
  padding: 12px;
  margin-bottom: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'Courier New', monospace;
}
.calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.calc-btn {
  padding: 14px;
  font-size: 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: background .15s ease;
  font-weight: 600;
}
.calc-btn:hover { background: var(--primary-soft); }
.calc-btn.op {
  background: var(--primary-soft);
  color: var(--primary-soft-text);
  border-color: var(--primary);
}
.calc-btn.op:hover { background: var(--primary);
  color: white;
}
.calc-btn.close-calc {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  padding: 0;
  font-size: 1.2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--muted);
  border-radius: 50%;
}
.calc-btn.close-calc:hover { background: var(--danger-soft); color: var(--danger); }

/* ============================ MODE LISTE ============================ */
.liste-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  text-align: center;
}
.liste-header h3 { margin: 0 0 8px; font-size: 1.2rem; }
.liste-info {
  color: var(--muted);
  font-size: .92rem;
  margin-bottom: 16px;
}
.liste-score {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
  margin: 12px 0;
}
.liste-score-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-soft-text);
}
.liste-score-pct {
  font-size: 1.1rem;
  color: var(--muted);
  font-weight: 600;
}
.liste-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.liste-card:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.liste-card.fait { border-color: var(--success); background: var(--success-soft); }
.liste-card.verifiee { background: var(--surface); }
.liste-card-head {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.liste-card-num {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary-soft-text);
  min-width: 32px;
}
.liste-card-body {
  margin-bottom: 16px;
}
.liste-card-feedback {
  margin-top: 12px;
}
.liste-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.btn-lg {
  font-size: 1.1rem;
  padding: 14px 28px;
}
@keyframes orca-swim {
  0%, 100% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(20vw) translateY(-20px); }
  50% { transform: translateX(40vw) translateY(10px); }
  75% { transform: translateX(60vw) translateY(-10px); }
}

.fin-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  padding-bottom: 24px;
}

/* ============================================================
   Ajouts 2026-10-31 : moteur réécrit
   ============================================================ */
.opt.opt-sel { border-color: var(--primary); }
.opt-mauvaise {
  border-color: var(--danger) !important;
  background: var(--danger-soft) !important;
}
.word-btn.opt-bonne { background: var(--success-soft); color: inherit; border-bottom-color: var(--success); font-weight: 700; }
.word-btn.opt-mauvaise { background: var(--danger-soft); color: inherit; border-bottom-color: var(--danger); }
.vf-btn.vf-attendu { outline: 2px solid var(--success); outline-offset: 2px; }
.liste-card.card-ok { border-color: var(--success); }
.liste-card.card-kof { border-color: var(--danger); }
.liste-avert { width: 100%; margin: 4px 0 0; color: var(--warn); font-weight: 600; font-size: .95rem; }
.liste-avert:empty { display: none; }
.td-phrase { color: var(--muted); font-style: italic; }
.q-phrase mark { padding: 0 .2em; border-radius: 4px; }
.fin-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.liste-header .fin-actions { margin-top: 12px; }
#btn-start:disabled { opacity: .5; cursor: not-allowed; }
.liste-progression { margin-top: 10px; font-weight: 700; color: var(--primary); }
.liste-score-bas { width: 100%; text-align: center; font-size: 1.1rem; margin-bottom: 8px; }
.liste-card .q-actions { margin-top: 12px; }