/* ============================================================
   activite.css — Page activité de découverte
   Centralisé : /styles/activite.css
   Compatible avec tous les niveaux (6e, 5e, 4e, 3e)
   ============================================================ */

/* --- Variables (surchargeables par niveau) --- */
:root {
  --act-accent:       #e07b2a;
  --act-accent-light: #fef3e8;
  --act-accent-dark:  #b85e18;
  --act-success:      #2e9e60;
  --act-success-bg:   #edfaf3;
  --act-error:        #c0392b;
  --act-error-bg:     #fdf0ef;
  --act-pouce:        #2980b9;
  --act-pouce-bg:     #ebf5fb;
  --act-solution:     #7b3fa0;
  --act-solution-bg:  #f5eefb;
  --act-card-bg:      #ffffff;
  --act-page-bg:      #f7f5f2;
  --act-border:       #e0dbd4;
  --act-text:         #2c2825;
  --act-text-light:   #6b635a;
  --act-radius:       12px;
  --act-shadow:       0 2px 12px rgba(0,0,0,0.08);
  --act-shadow-md:    0 4px 20px rgba(0,0,0,0.12);
}

/* --- Layout principal --- */
.activite-page {
  background: var(--act-page-bg);
  min-height: 100vh;
  padding-bottom: 4rem;
}

.activite-hero {
  background: linear-gradient(135deg, var(--act-accent) 0%, var(--act-accent-dark) 100%);
  color: #fff;
  padding: 2.5rem 2rem 3rem;
  position: relative;
  overflow: hidden;
}

.activite-hero::before {
  content: '';
  position: absolute;
  right: -4rem;
  top: -4rem;
  width: 14rem;
  height: 14rem;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}

.activite-hero::after {
  content: '';
  position: absolute;
  right: 2rem;
  bottom: -2rem;
  width: 8rem;
  height: 8rem;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
}

.activite-hero-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.activite-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.activite-hero h1 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 800;
  margin: 0 0 0.6rem;
  line-height: 1.2;
}

.activite-hero-desc {
  font-size: 1rem;
  opacity: 0.88;
  margin: 0;
  max-width: 600px;
}

/* --- Conteneur principal --- */
.activite-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Navigation items (onglets) --- */
.items-nav {
  display: flex;
  gap: 0.5rem;
  padding: 1.5rem 0 0;
  overflow-x: auto;
  scrollbar-width: none;
  flex-wrap: wrap;
}

.items-nav::-webkit-scrollbar { display: none; }

.item-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  border: 2px solid var(--act-border);
  background: var(--act-card-bg);
  color: var(--act-text-light);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.item-nav-btn:hover {
  border-color: var(--act-accent);
  color: var(--act-accent);
}

.item-nav-btn.active {
  background: var(--act-accent);
  border-color: var(--act-accent);
  color: #fff;
}

.item-nav-btn .nav-check {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
}

.item-nav-btn.done .nav-check {
  background: var(--act-success);
}

/* --- Section item --- */
.item-section {
  display: none;
  animation: fadeIn 0.25s ease;
}

.item-section.visible { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Carte situation --- */
.situation-card {
  background: var(--act-card-bg);
  border-radius: var(--act-radius);
  box-shadow: var(--act-shadow);
  padding: 1.8rem 2rem;
  margin: 1.5rem 0 1rem;
  border-left: 5px solid var(--act-accent);
}

.situation-card h2 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--act-text);
  margin: 0 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.situation-card h2 .item-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: var(--act-accent-light);
  color: var(--act-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.situation-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--act-accent);
  margin-bottom: 0.8rem;
}

.situation-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--act-text);
}

.situation-text p { margin: 0 0 0.6rem; }
.situation-text p:last-child { margin-bottom: 0; }

/* --- Carte question --- */
.question-card {
  background: var(--act-card-bg);
  border-radius: var(--act-radius);
  box-shadow: var(--act-shadow);
  padding: 1.6rem 2rem;
  margin-bottom: 1.2rem;
  border-top: 3px solid var(--act-border);
  transition: box-shadow 0.2s ease;
}

.question-card:hover {
  box-shadow: var(--act-shadow-md);
}

.question-card.correct  { border-top-color: var(--act-success); }
.question-card.incorrect { border-top-color: var(--act-error); }

.question-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.question-num {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--act-accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.question-enonce {
  flex: 1;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--act-text);
}

.question-enonce p  { margin: 0 0 0.4rem; }
.question-enonce strong { color: var(--act-accent-dark); }

/* --- Zone de réponse --- */
.answer-zone {
  margin-top: 1rem;
}

.answer-input {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.answer-input input[type="text"],
.answer-input input[type="number"] {
  flex: 0 1 200px;
  padding: 0.6rem 1rem;
  border: 2px solid var(--act-border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--act-text);
  background: #fff;
  transition: border-color 0.18s;
}

.answer-input input:focus {
  outline: none;
  border-color: var(--act-accent);
}

.answer-input input.valid   { border-color: var(--act-success); background: var(--act-success-bg); }
.answer-input input.invalid { border-color: var(--act-error);   background: var(--act-error-bg); }

.answer-textarea textarea {
  width: 100%;
  min-height: 80px;
  padding: 0.75rem 1rem;
  border: 2px solid var(--act-border);
  border-radius: 8px;
  font-size: 0.97rem;
  font-family: inherit;
  line-height: 1.6;
  color: var(--act-text);
  resize: vertical;
  box-sizing: border-box;
  transition: border-color 0.18s;
}

.answer-textarea textarea:focus {
  outline: none;
  border-color: var(--act-accent);
}

/* QCM */
.qcm-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.qcm-btn {
  padding: 0.55rem 1.2rem;
  border: 2px solid var(--act-border);
  border-radius: 8px;
  background: #fff;
  color: var(--act-text);
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
}

.qcm-btn:hover   { border-color: var(--act-accent); color: var(--act-accent); }
.qcm-btn.correct { border-color: var(--act-success); background: var(--act-success-bg); color: var(--act-success); }
.qcm-btn.wrong   { border-color: var(--act-error);   background: var(--act-error-bg);   color: var(--act-error); }
.qcm-btn.selected { border-color: var(--act-accent); background: var(--act-accent-light); color: var(--act-accent-dark); }

/* Bouton valider */
.btn-valider {
  padding: 0.55rem 1.4rem;
  background: var(--act-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.18s;
}

.btn-valider:hover { background: var(--act-accent-dark); }

/* --- Feedback --- */
.feedback {
  margin-top: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}

.feedback.show { display: block; }
.feedback.success { background: var(--act-success-bg); color: var(--act-success); }
.feedback.error   { background: var(--act-error-bg);   color: var(--act-error); }

/* --- Coup de pouce & Solution --- */
.helps-zone {
  margin-top: 1.2rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn-pouce,
.btn-solution {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border-radius: 8px;
  border: 2px solid;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.18s ease;
}

.btn-pouce {
  border-color: var(--act-pouce);
  color: var(--act-pouce);
  background: #fff;
}

.btn-pouce:hover { background: var(--act-pouce-bg); }

.btn-solution {
  border-color: var(--act-solution);
  color: var(--act-solution);
  background: #fff;
}

.btn-solution:hover { background: var(--act-solution-bg); }

.pouce-content,
.solution-content {
  margin-top: 0.75rem;
  padding: 1rem 1.2rem;
  border-radius: 8px;
  font-size: 0.93rem;
  line-height: 1.65;
  display: none;
}

.pouce-content.show    { display: block; background: var(--act-pouce-bg);    border-left: 4px solid var(--act-pouce); }
.solution-content.show { display: block; background: var(--act-solution-bg); border-left: 4px solid var(--act-solution); }

.pouce-content strong    { color: var(--act-pouce); }
.solution-content strong { color: var(--act-solution); }

.solution-content .solution-steps {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

.solution-content .solution-steps li {
  margin-bottom: 0.4rem;
}

/* --- Barre de progression globale --- */
.progress-bar-wrap {
  background: var(--act-card-bg);
  box-shadow: var(--act-shadow);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: var(--act-radius);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.progress-bar-wrap span {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--act-text-light);
  white-space: nowrap;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--act-border);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--act-accent), var(--act-accent-dark));
  border-radius: 999px;
  transition: width 0.5s ease;
  width: 0%;
}

/* --- Navigation fin d'item --- */
.item-nav-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 2rem 0 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-prev,
.btn-next {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.18s ease;
  border: 2px solid var(--act-accent);
}

.btn-prev {
  background: #fff;
  color: var(--act-accent);
}

.btn-prev:hover { background: var(--act-accent-light); }

.btn-next {
  background: var(--act-accent);
  color: #fff;
}

.btn-next:hover { background: var(--act-accent-dark); border-color: var(--act-accent-dark); }

.btn-prev:disabled,
.btn-next:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* --- État vide / chargement --- */
.activite-loading {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--act-text-light);
  font-size: 1rem;
}

.activite-loading .spinner {
  width: 2.5rem;
  height: 2.5rem;
  border: 3px solid var(--act-border);
  border-top-color: var(--act-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Breadcrumb --- */
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.breadcrumb a { color: rgba(255,255,255,0.85); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: #fff; font-weight: 600; }

/* --- Responsive --- */
@media (max-width: 640px) {
  .activite-hero { padding: 1.8rem 1.2rem 2.2rem; }
  .activite-container { padding: 0 1rem; }
  .situation-card,
  .question-card { padding: 1.2rem 1.3rem; }
  .item-nav-actions { flex-direction: column; }
  .btn-prev, .btn-next { width: 100%; justify-content: center; }
}