/* Boutons de tranche latéraux flottants (Google Play Livres) */
.lesson-edge-paddle {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 64px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  z-index: 20;
  color: var(--school-text);
  font-size: 20px;
  transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
  backdrop-filter: blur(4px);
}

.lesson-edge-paddle:hover:not(:disabled) {
  background: var(--school-primary);
  color: #ffffff;
  width: 48px;
  box-shadow: 0 6px 20px rgba(15, 118, 110, 0.3);
}

.lesson-edge-paddle.paddle-prev {
  left: -22px;
}

.lesson-edge-paddle.paddle-next {
  right: -22px;
}

.lesson-edge-paddle:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.lesson-page-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
}

.lesson-page-nav .school-btn {
  max-width: 48%;
}

.lesson-sidebar-toggle {
  display: none;
}

@media (max-width: 767.98px) {
  .lesson-book-layout {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }

  .lesson-sidebar {
    position: static;
    max-height: none;
    width: 100%;
    flex-basis: auto;
    padding: 12px 14px;
  }

  /* Sommaire replié par défaut : la fiche passe avant la table des matières */
  .lesson-sidebar-toggle {
    display: inline-flex;
    margin-left: auto;
    border: 1px solid var(--school-border);
    background: var(--school-surface-alt);
    color: var(--school-primary-dark);
    border-radius: var(--school-radius-pill);
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 700;
    text-transform: none;
    letter-spacing: 0;
  }

  .lesson-sidebar:not(.open) .lesson-sidebar-title {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .lesson-sidebar:not(.open) .lesson-chapter {
    display: none;
  }

  .lesson-edge-paddle {
    display: none;
  }

  .lesson-flip-book-wrapper,
  .lesson-flip-book {
    min-height: 0;
  }

  .lesson-flip-book-wrapper {
    padding: 0;
  }

  /* Place en haut de page pour les encarts « Cliquer ici » */
  .lesson-flip-page-inner {
    padding: 52px 16px 24px;
  }

  .lesson-book-footer {
    justify-content: center !important;
  }

  .lesson-book-footer span:first-child,
  .lesson-book-footer span:last-child {
    display: none;
  }
}

/* --- Mythologie (arbre généalogique) --- */
.myth-tree {
  position: relative;
}

.myth-connectors {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 0;
}

.myth-row {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 64px;
}

.myth-card {
  background: var(--school-surface-alt, #f5f7fb);
  border: 1px solid var(--school-border);
  border-radius: var(--school-radius-md);
  padding: 14px 10px;
  text-align: center;
  width: 164px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.myth-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.myth-avatar {
  width: 116px;
  height: 180px;
  margin: 0 auto 8px;
  display: block;
  object-fit: cover;
  border-radius: 10px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.myth-name {
  font-weight: 800;
  color: var(--school-primary-dark);
}

.myth-parent-note {
  font-size: 0.72rem;
  color: var(--school-text-muted, #5a6472);
  font-style: italic;
}

.myth-epithet {
  font-size: 0.82rem;
  color: var(--school-text-muted, #5a6472);
  margin-top: 4px;
}

.myth-source {
  font-size: 0.72rem;
  color: var(--school-text-muted, #5a6472);
  margin-top: 8px;
  font-style: italic;
}

.myth-source-link {
  font-size: 0.72rem;
  color: var(--school-primary-dark);
  margin-top: 8px;
  font-style: italic;
  background: none;
  border: none;
  padding: 0;
  text-decoration: underline;
  cursor: pointer;
}

.myth-source-link:hover {
  color: var(--school-primary, #14b8a6);
}

/* --- Fabrique ton quiz --- */
.custom-quiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.custom-quiz-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--school-surface-alt, #f5f7fb);
  border-radius: var(--school-radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}

.quiz-theme-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  margin: 4px 4px 4px 0;
  border-radius: 9999px;
  background: var(--school-surface-alt, #f5f7fb);
  font-size: 0.84rem;
  cursor: pointer;
  border: 1px solid var(--school-border, #e2e8f0);
  transition: all 0.2s ease;
  user-select: none;
}

.quiz-theme-badge:hover {
  background: var(--school-primary-soft, #e0f2fe);
  border-color: var(--school-primary, #0284c7);
  color: var(--school-primary-dark, #0369a1);
}

.quiz-theme-badge.active {
  background: var(--school-primary, #0284c7);
  border-color: var(--school-primary, #0284c7);
  color: #ffffff;
  font-weight: 600;
}

/* --- Sidebar --- */
.school-sidebar {
  width: 280px;
  flex-shrink: 0;
  padding: 20px 14px;
}

.school-content-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.school-breadcrumb {
  padding: 14px 32px 0;
  font-size: 0.84rem;
  color: var(--school-text-muted);
}

.school-breadcrumb a {
  color: var(--school-text-muted);
  text-decoration: none;
}

.school-breadcrumb a:hover {
  color: var(--school-primary-dark);
  text-decoration: underline;
}

.school-breadcrumb .crumb-current {
  color: var(--school-text);
  font-weight: 700;
}

.sidebar-toggle-btn,
.theme-toggle-btn {
  background: var(--school-surface-alt);
  border: 1px solid var(--school-border);
  border-radius: var(--school-radius-md);
  width: 38px;
  height: 38px;
  font-size: 1.05rem;
  cursor: pointer;
  color: var(--school-text);
}

.sidebar-toggle-btn:hover,
.theme-toggle-btn:hover {
  background: var(--school-primary-soft);
}

.dyslexia-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--school-surface-alt);
  border: 1.5px solid var(--school-border);
  color: var(--school-text);
  border-radius: var(--school-radius-pill);
  padding: 6px 14px;
  height: 38px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.18s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
  white-space: nowrap;
  user-select: none;
}

.dyslexia-toggle-btn:hover {
  border-color: var(--school-primary);
  color: var(--school-primary-dark);
  background: var(--school-primary-soft);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.2);
}

.dyslexia-toggle-btn:active {
  transform: translateY(0);
}

.dyslexia-toggle-btn.active {
  background: var(--school-primary) !important;
  border-color: var(--school-primary) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.4) !important;
}

.dyslexia-toggle-btn.active:hover {
  background: var(--school-primary-dark) !important;
  border-color: var(--school-primary-dark) !important;
}

.dyslexia-toggle-btn .dyslexia-icon {
  font-size: 1.05rem;
  line-height: 1;
}

@media (max-width: 767.98px) {
  .dyslexia-toggle-btn .dyslexia-label {
    display: none;
  }
  .dyslexia-toggle-btn {
    padding: 0;
    width: 38px;
    justify-content: center;
  }
}

/* --- Infobulles et termes clés du glossaire --- */
.glossary-term {
  border: none !important;
  background: transparent !important;
  font-family: inherit !important;
  font-size: inherit !important;
  font-weight: 600 !important;
  line-height: inherit !important;
  text-align: inherit !important;
  color: #0284c7 !important;
  text-decoration: underline !important;
  text-decoration-style: dashed !important;
  text-decoration-color: #0284c7 !important;
  text-underline-offset: 3px;
  cursor: pointer;
  border-radius: 4px;
  padding: 0 2px;
  margin: 0;
  transition: all 0.15s ease;
  display: inline;
  vertical-align: baseline;
  -webkit-appearance: none;
  appearance: none;
}

[data-bs-theme="dark"] .glossary-term {
  color: #38bdf8 !important;
  text-decoration-color: #38bdf8 !important;
}

.glossary-term:hover,
.glossary-term:focus {
  background: rgba(2, 132, 199, 0.12) !important;
  color: #0369a1 !important;
  text-decoration-style: solid !important;
  outline: none;
}

[data-bs-theme="dark"] .glossary-term:hover,
[data-bs-theme="dark"] .glossary-term:focus {
  background: rgba(56, 189, 248, 0.2);
  color: #7dd3fc !important;
}