/* ============================================================
   AGORA MATHS — compléments au design AGORA (styles.css)
   Spécifique maths : KaTeX, formulaire, cartes méthode, bandeau démo.
   ============================================================ */

/* ---------- KaTeX : tailles cohérentes avec le design ---------- */
.katex { font-size: 1.05em; }
.q-card .question .katex { font-size: 1.25em; }
.opt .katex, .opt-body .katex { font-size: 1.05em; }
.flash-answer .katex { font-size: 1.7em; }
.formulaire .katex { font-size: 1em; }
/* évite le débordement horizontal des formules sur mobile */
.katex-display { overflow-x: auto; overflow-y: hidden; padding: 2px 0; }
.opt-body { display: inline-block; }

/* ---------- logo / nav ---------- */
.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--blue);
  color: var(--paper);
  padding: 0.15rem 0.4rem;
  align-self: center;
  transform: rotate(-3deg);
}
.cross-link {
  text-decoration: none;
  color: var(--ink);
  border: 2px solid var(--ink);
  padding: 0.2rem 0.55rem;
  font-weight: 600;
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
}
.cross-link:hover { background: var(--blue); color: var(--paper); }

/* ---------- compteur J− ---------- */
.countdown {
  display: inline-flex;
  align-items: center;
  color: var(--red);
  border: 2px dashed var(--red);
  padding: 0.35rem 0.7rem;
  margin-left: 0.6rem;
}

/* ---------- bandeau démo ---------- */
.demo-band {
  background: var(--gold);
  color: var(--ink);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  text-align: center;
  padding: 0.7rem 1rem;
  letter-spacing: 0.04em;
  text-transform: none;
  font-size: 0.8rem;
}
.demo-band strong { font-weight: 700; }

/* ---------- cartes spéciales ---------- */
.chap-card .pictogram { font-size: 1.8rem; }
.mix-card { background: var(--blue); color: var(--paper); }
.mix-card .num, .mix-card .best { color: var(--paper); opacity: 0.9; }
.mix-card p { opacity: 0.92; }
.soon-card {
  opacity: 0.7;
  cursor: default;
  border-style: dashed;
}
.soon-card:hover { transform: none; box-shadow: var(--shadow); }

/* ---------- bandeau des 4 types de jeu ---------- */
.game-type-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
  margin: 1.6rem 0 0.4rem;
}
.game-type {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 2px solid var(--ink);
  background: #fbf7ec;
  padding: 0.4rem 0.8rem;
  box-shadow: var(--shadow-sm);
}

/* ---------- boutons de jeu dans la fiche ---------- */
.fiche-games {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.2rem;
}

/* ---------- formulaire (tableaux) ---------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
}
.form-h {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  color: var(--blue);
}
.formulaire {
  width: 100%;
  border-collapse: collapse;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  background: #fbf7ec;
}
.formulaire th {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.5rem 0.8rem;
  text-align: left;
}
.formulaire td {
  padding: 0.5rem 0.8rem;
  border-top: 1px solid rgba(23, 20, 14, 0.18);
}
.formulaire td:first-child { border-right: 1px solid rgba(23, 20, 14, 0.18); }
.formulaire tr:nth-child(even) td { background: rgba(34, 48, 212, 0.04); }

/* ---------- cartes méthode ---------- */
.methode-card {
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  background: #fbf7ec;
  padding: 1.1rem 1.3rem;
  margin-bottom: 1.1rem;
}
.methode-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}
.methode-steps { margin: 0; padding-left: 1.3rem; }
.methode-steps li { margin-bottom: 0.35rem; line-height: 1.5; }

/* ---------- flashcard maths ---------- */
.flash-answer {
  font-family: var(--font-display);
  line-height: 1.3;
}
.flash-tip { margin-top: 0.4rem; }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%) translateY(140%);
  background: var(--ink);
  color: var(--paper);
  padding: 0.7rem 1.1rem;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
  font-size: 0.9rem;
  z-index: 1000;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 88vw;
  text-align: center;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; gap: 1.4rem; }
  .cross-link { font-size: 0.78rem; padding: 0.15rem 0.4rem; }
  .countdown { margin-left: 0; margin-top: 0.6rem; }
  .cta { flex-wrap: wrap; }
  .q-card .question .katex { font-size: 1.1em; }
}