/* Exercice noté de prompting — utilisable dans Atelier 1 (chat-ia) et Atelier 2 (atelier-prompting-avance) */
.exo {
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 12px;
  background: var(--surface-2, #f5f8f7);
}
.exo-head {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.exo-head-titles { flex: 1; min-width: 200px; }
.exo-best-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(33, 96, 90, 0.10), rgba(33, 96, 90, 0.18));
  border: 1px solid rgba(33, 96, 90, 0.30);
  font-size: 0.85rem;
  color: var(--ink, #1a1a1a);
  white-space: nowrap;
}
.exo-best-badge-score {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent, #21605a);
  font-variant-numeric: tabular-nums;
}
.exo-best-badge-meta { color: var(--ink-muted, #777); font-size: 0.8rem; }
.exo-best-badge.is-new {
  animation: exo-pulse 0.6s ease;
}
@keyframes exo-pulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.08); background: linear-gradient(135deg, rgba(33,96,90,0.20), rgba(33,96,90,0.30)); }
  100% { transform: scale(1); }
}
.exo-kicker {
  display: inline-block;
  font-family: var(--font-mono, 'IBM Plex Mono', monospace);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent, #21605a);
  margin-bottom: 0.25rem;
}
.exo-title {
  font-family: var(--font-display, 'Cormorant Garamond', serif);
  font-size: 1.5rem;
  margin: 0;
}
.exo-consigne { margin: 0 0 1rem; line-height: 1.55; }
.exo-prompt-naif {
  display: flex; flex-direction: column; gap: 0.25rem;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--danger, #a64632);
  background: rgba(166, 70, 50, 0.06);
  border-radius: 0 6px 6px 0;
  margin-bottom: 1rem;
  font-style: italic;
}
.exo-prompt-naif-label {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--danger, #a64632); font-weight: 600; font-style: normal;
}
.exo-textarea-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.exo-textarea {
  width: 100%;
  min-height: 110px;
  padding: 0.75rem 0.9rem;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  border: 1px solid var(--border, #d0d8d6);
  border-radius: 8px;
  background: var(--surface, #fff);
  box-sizing: border-box;
  resize: vertical;
}
.exo-textarea:focus {
  outline: none;
  border-color: var(--accent, #21605a);
  box-shadow: 0 0 0 3px rgba(33, 96, 90, 0.12);
}
.exo-actions {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-top: 0.75rem;
}
.exo-status {
  font-size: 0.85rem; color: var(--ink-muted, #777);
}
.exo-status.is-error { color: var(--danger, #a64632); }
.exo-result {
  margin-top: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #d0d8d6);
  border-radius: 8px;
}
.exo-result-text {
  font-size: 0.95rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.exo-result-text h2 {
  font-family: var(--font-body, 'Sora', sans-serif);
  font-size: 1rem;
  font-weight: 600;
  margin: 1.1rem 0 0.4rem;
  color: var(--accent, #21605a);
}
.exo-result-text h2:first-child { margin-top: 0; }
.exo-result-text h2.is-note {
  font-size: 1.4rem;
  color: var(--ink, #1a1a1a);
}
.exo-result-text ul { margin: 0.4rem 0 0.6rem 1.2rem; padding: 0; }
.exo-result-text li { margin: 0.2rem 0; }
.exo-result-text strong { color: var(--ink, #1a1a1a); }
.exo-result.is-streaming::after {
  content: '▌';
  animation: exo-blink 1s step-end infinite;
  color: var(--accent, #21605a);
}
@keyframes exo-blink { 50% { opacity: 0; } }

/* ── Résultat structuré : note, étoiles, barème, version repliée ── */
.exo-attente { margin: 0; font-style: italic; color: var(--ink-soft); }
.exo-score { display: flex; align-items: center; gap: 0.6rem 1.1rem; flex-wrap: wrap; margin-bottom: 0.9rem; }
.exo-score__note { font-family: var(--serif); line-height: 1; color: var(--ink-strong); }
.exo-score__note strong { font-size: 2.6rem; font-weight: 600; }
.exo-score__note span { font-size: 1.1rem; color: var(--ink-soft); }
.exo-score__etoiles { font-size: 1.4rem; letter-spacing: 0.12em; color: var(--accent); }
.exo-score__msg { flex: 1 1 14rem; margin: 0; font-size: 0.92rem; color: var(--ink-strong); }
.exo-score__delta { display: inline-block; font-family: var(--mono); font-size: 0.74rem; border-radius: 999px; padding: 0.1rem 0.55rem; margin-left: 0.25rem; }
.exo-score__delta.is-plus { color: var(--ok); background: #e8f4ee; }
.exo-score__delta.is-moins { color: var(--danger); background: #fbeae6; }
.exo-result-text .exo-bareme { list-style: none; margin: 0 0 0.6rem; padding: 0; display: grid; gap: 0.45rem; }
.exo-result-text .exo-bareme li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(4rem, 8rem) 2.6rem; gap: 0.2rem 0.7rem; align-items: center; margin: 0; font-size: 0.86rem; }
.exo-bareme__label { color: var(--ink-strong); }
.exo-bareme__jauge { height: 8px; border-radius: 999px; background: rgba(44,69,79,0.12); overflow: hidden; }
.exo-bareme__jauge i { display: block; height: 100%; border-radius: 999px; background: var(--ok); }
.exo-bareme__pts { font-family: var(--mono); font-size: 0.76rem; color: var(--ink-soft); text-align: right; }
.exo-bareme small { grid-column: 1 / -1; font-size: 0.78rem; color: var(--ink-soft); }
.exo-version { margin-top: 0.9rem; border: 1px dashed var(--line); border-radius: var(--radius-sm); padding: 0.55rem 0.8rem; }
.exo-version summary { cursor: pointer; font-weight: 600; font-size: 0.86rem; color: var(--accent-deep); }
.exo-version__texte { margin-top: 0.5rem; white-space: pre-wrap; font-size: 0.9rem; }
.exo-ameliorer[hidden] { display: none; }
@media (max-width: 560px) {
  .exo-result-text .exo-bareme li { grid-template-columns: minmax(0, 1fr) 2.6rem; }
  .exo-bareme__jauge { grid-column: 1 / -1; order: 3; }
}
.exo-best-badge[hidden] { display: none; }