/* Styles pour la gestion des groupes */

/* Section des groupes */
.groups {
  padding: 2rem 0;
  min-height: 60vh;
}

.groups-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.groups-header h2 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
}

.groups-subtitle {
  margin: 0.5rem 0 0;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.groups-header-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

/* Statistiques des groupes */
.groups-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
  perspective: 1000px;
  perspective-origin: 50% 50%;
}

.groups-stats .stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: transform 0.5s ease, box-shadow 0.5s ease, background-position 0.6s ease, border-color 0.3s ease;
  transform-style: preserve-3d;
  background-image: linear-gradient(135deg, transparent 18.75%, rgba(255,255,255,0.03) 0 31.25%, transparent 0),
                    repeating-linear-gradient(45deg, rgba(255,255,255,0.03) -6.25% 6.25%, rgba(255,255,255,0.05) 0 18.75%);
  background-size: 60px 60px;
  background-position: 0 0, 0 0;
  background-color: var(--color-surface);
}

.groups-stats .stat-card:hover {
  background-position: -100px 100px, -100px 100px;
  transform: rotate3d(0.5, 1, 0, 12deg) translateY(-4px);
  box-shadow: 0 30px 30px -10px rgba(0, 0, 0, 0.25);
  border-color: var(--color-button);
}

.groups-stats .stat-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-button), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-button-text);
  font-size: 1.5rem;
}

.groups-stats .stat-content {
  flex: 1;
}

.groups-stats .stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-on-surface);
  line-height: 1;
  margin-bottom: 0.25rem;
  transform: translateZ(30px);
  transition: transform 0.5s ease;
}

.groups-stats .stat-card:hover .stat-number {
  transform: translateZ(45px);
}

.groups-stats .stat-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* Grille des groupes */
.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
  perspective: 1000px;
  perspective-origin: 50% 50%;
}

/* Cartes de groupe */
.group-card {
  background: var(--color-surface);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 30px 30px -10px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.15);
  border: 3px solid var(--color-border);
  transition: transform 0.5s ease-in-out, box-shadow 0.5s ease-in-out, border-color 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  min-height: auto;
  transform-style: preserve-3d;
  background-color: var(--color-surface);
}

.group-card:hover {
  transform: rotate3d(0.5, 1, 0, 12deg) translateY(-8px);
  box-shadow: 0 40px 40px -10px rgba(0, 0, 0, 0.4), 0 20px 40px rgba(0, 0, 0, 0.35);
  border-color: var(--color-button);
}

.group-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-button), var(--color-accent));
  opacity: 0;
  transition: all 0.5s ease-in-out;
  transform: translate3d(0px, 0px, 10px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.group-card:hover::before {
  opacity: 1;
  transform: translate3d(0px, 0px, 50px);
}

/* En-tête de la carte */
.group-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
  transform-style: preserve-3d;
}

.group-info {
  flex: 1;
  min-width: 0;
}

.group-name {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text-on-surface);
  margin-bottom: 0.75rem;
  line-height: 1.3;
  word-wrap: break-word;
  overflow-wrap: break-word;
  transform: translate3d(0px, 0px, 50px);
  transition: all 0.5s ease-in-out;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.group-card:hover .group-name {
  transform: translate3d(0px, 0px, 110px);
}

.group-name:hover {
  transform: translate3d(0px, 0px, 130px);
}

.group-visibility {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transform: translate3d(0px, 0px, 40px);
  transition: all 0.5s ease-in-out;
}

.group-card:hover .group-visibility {
  transform: translate3d(0px, 0px, 80px);
}

.group-visibility i {
  font-size: 0.75rem;
}

.group-members-count {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  background: var(--color-surface-alt);
  padding: 0.6rem 1rem;
  border-radius: 20px;
  font-weight: 500;
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.5s ease-in-out;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2), inset 0 -2px 4px rgba(0,0,0,0.08);
  transform: translate3d(0px, 0px, 60px);
}

.group-card:hover .group-members-count {
  transform: translate3d(0px, 0px, 120px);
}

.group-members-count:hover {
  background: var(--color-button);
  color: var(--color-button-text);
  transform: translate3d(0px, 0px, 140px) scale(1.06);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.3), inset 0 -2px 4px rgba(0,0,0,0.08);
}

/* Description du groupe */
.group-description {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-wrap: break-word;
  overflow-wrap: break-word;
  transform: translate3d(0px, 0px, 30px);
  transition: all 0.5s ease-in-out;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.group-card:hover .group-description {
  transform: translate3d(0px, 0px, 70px);
}

/* Statistiques du groupe */
.group-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem;
  background: var(--color-surface-alt);
  border-radius: 10px;
  transform-style: preserve-3d;
  box-shadow: inset 0 8px 16px rgba(0, 0, 0, 0.12), inset 0 -6px 12px rgba(0, 0, 0, 0.08);
  transform: translate3d(0px, 0px, 35px);
  transition: all 0.5s ease-in-out;
}

.group-card:hover .group-stats {
  transform: translate3d(0px, 0px, 85px);
}

.group-stat {
  text-align: center;
  cursor: pointer;
  padding: 0.4rem 0.2rem;
  border-radius: 8px;
  transition: all 0.5s ease-in-out;
  position: relative;
  overflow: hidden;
  min-width: 0;
  box-sizing: border-box;
  border: 2px solid transparent;
  transform: translate3d(0px, 0px, 45px);
}

.group-card:hover .group-stat {
  transform: translate3d(0px, 0px, 90px);
}

.group-stat:hover {
  background: var(--color-surface);
  transform: translate3d(0px, 0px, 110px) scale(1.03);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.group-stat:active {
  background: var(--color-surface-alt);
}

/* Styles spécifiques pour chaque type de statistique */
.group-stat[data-stat-type="quiz"]:hover {
  background: linear-gradient(135deg, var(--color-surface), #e3f2fd);
}

.group-stat[data-stat-type="notes"]:hover {
  background: linear-gradient(135deg, var(--color-surface), #f3e5f5);
}

.group-stat[data-stat-type="html"]:hover {
  background: linear-gradient(135deg, var(--color-surface), #e8f5e8);
}


/* Icône pour indiquer que c'est cliquable */
.group-stat-icon {
  position: absolute;
  top: 0.25rem;
  right: 0.25rem;
  font-size: 0.6rem;
  color: var(--color-button);
  opacity: 0;
  transition: all 0.2s ease;
}

.group-stat:hover .group-stat-icon {
  opacity: 1;
}

.group-stat-number {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-button);
  line-height: 1.2;
  word-break: break-word;
  transform: translate3d(0px, 0px, 55px);
  transition: all 0.5s ease-in-out;
  text-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.group-card:hover .group-stat-number {
  transform: translate3d(0px, 0px, 100px);
}

.group-stat-label {
  font-size: 0.5rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.2px;
  margin-top: 0.2rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transform: translate3d(0px, 0px, 50px);
  transition: all 0.5s ease-in-out;
}

.group-card:hover .group-stat-label {
  transform: translate3d(0px, 0px, 90px);
}

.group-stat:hover .group-stat-number {
  transform: translate3d(0px, 0px, 120px);
}

.group-stat:hover .group-stat-label {
  transform: translate3d(0px, 0px, 105px);
}

/* Actions du groupe */
.group-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  transform-style: preserve-3d;
  transform: translate3d(0px, 0px, 40px);
  transition: all 0.5s ease-in-out;
}

.group-card:hover .group-actions {
  transform: translate3d(0px, 0px, 80px);
}

.group-actions .btn {
  width: 36px;
  height: 36px;
  min-width: auto;
  padding: 0;
  border-radius: 8px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.25), inset 0 -4px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.5s ease-in-out;
  transform: translate3d(0px, 0px, 50px);
  transform-style: preserve-3d;
  position: relative;
  overflow: hidden;
}

.group-actions .btn i {
  margin: 0;
  font-size: 1rem;
  transition: all 0.5s ease-in-out;
  position: relative;
  z-index: 1;
}

/* Effet de base au survol de la carte - tous les boutons */
.group-card:hover .group-actions .btn {
  transform: translate3d(0px, 0px, 100px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35), inset 0 -4px 8px rgba(0, 0, 0, 0.1);
}

/* Effet au survol du bouton individuel - plus prononcé */
.group-card:hover .group-actions .btn:hover {
  transform: translate3d(0px, -4px, 150px) scale(1.1);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), inset 0 -4px 8px rgba(0, 0, 0, 0.15);
}

/* Effet de l'icône au survol de la carte */
.group-card:hover .group-actions .btn i {
  transform: translate3d(0px, 0px, 10px);
}

/* Effet de l'icône au survol du bouton individuel */
.group-card:hover .group-actions .btn:hover i {
  transform: translate3d(0px, 0px, 20px);
}

.group-actions .btn:active {
  transform: translate3d(0px, 0px, 110px) !important;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3), inset 0 -4px 8px rgba(0, 0, 0, 0.1);
}

.group-actions .btn span {
  display: none;
}

/* État vide */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-secondary);
}

.empty-state-icon {
  font-size: 4rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  opacity: 0.6;
}

.empty-state-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text-on-surface);
}

.empty-state-text {
  font-size: 1rem;
  line-height: 1.6;
  max-width: 400px;
  margin: 0 auto 2rem;
}

/* Modal des membres */
.members-list {
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 1.5rem;
}

.member-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 0.75rem;
  background: var(--color-surface-alt);
}

.member-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
}

.member-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-button);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-button-text);
  font-size: 1.25rem;
  overflow: hidden;
}

.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-details {
  flex: 1;
}

.member-name {
  font-weight: 600;
  color: var(--color-text-on-surface);
  margin-bottom: 0.25rem;
}

.member-email {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.member-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.member-role {
  font-size: 0.875rem;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-weight: 500;
}

.member-role.owner {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: white;
}

.member-role.member {
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
}

.member-role i {
  margin-right: 0.25rem;
}

/* Section d'ajout de membre */
.add-member-section {
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
}

.add-member-section h4 {
  margin-bottom: 1rem;
  color: var(--color-text-on-surface);
}

.add-member-form {
  display: flex;
  gap: 0.75rem;
}

.add-member-form input {
  flex: 1;
}

/* Loading state */
.groups-grid.loading {
  opacity: 0.6;
  pointer-events: none;
}

.groups-grid.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-button);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
  .groups-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .group-card {
    padding: 1.5rem;
    min-height: auto;
  }
  
  .group-card-header {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  
  .group-members-count {
    align-self: flex-start;
  }
  
  .group-actions {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .group-actions .btn {
    flex: none;
    min-width: auto;
    width: 100%;
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
  }
  
  .add-member-form {
    flex-direction: column;
  }
  
  .member-item {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  
  .member-actions {
    justify-content: space-between;
  }
}

@media (max-width: 480px) {
  .groups-header {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  
  .group-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
  
  .group-name {
    font-size: 1.2rem;
  }
  
  .group-description {
    font-size: 0.9rem;
  }
  
  .group-stat-number {
    font-size: 1rem;
  }
  
  .group-stat-label {
    font-size: 0.5rem;
  }
}

/* Thème sombre */
[data-theme="dark"] .group-card {
  background: var(--color-surface);
  border-color: var(--color-border);
}

[data-theme="dark"] .group-card:hover {
  border-color: var(--color-button);
}

[data-theme="dark"] .member-item {
  background: var(--color-surface-alt);
  border-color: var(--color-border);
}

[data-theme="dark"] .add-member-section {
  border-color: var(--color-border);
}

/* ===================================
   GROUP EXPLORER SIDEBAR
   =================================== */

.group-detail-content-wrapper {
  position: relative;
  display: flex;
  gap: 0;
  width: 100%;
}

.explorer-toggle-btn {
  background: var(--color-button);
  color: var(--color-button-text);
  border: none;
  border-radius: 10px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 1000;
}

.explorer-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  background: var(--color-accent);
}

.group-explorer-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: var(--color-surface);
  border-left: 2px solid var(--color-border);
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: right 0.3s ease;
  overflow-y: auto;
}

.group-explorer-sidebar.active {
  right: 0;
}

.explorer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.explorer-header h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-on-surface);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.explorer-header h3 i {
  color: var(--color-button);
}

.explorer-close-btn {
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0.5rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.explorer-close-btn:hover {
  background: var(--color-surface);
  color: var(--color-text-on-surface);
}

.explorer-content {
  padding: 1rem;
}

.explorer-loading {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-secondary);
}

.explorer-item {
  padding: 0.25rem 0;
  cursor: pointer;
  user-select: none;
}

.explorer-item-root {
  font-weight: 600;
  color: var(--color-button);
  padding: 0.75rem 0.5rem;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.explorer-item-root:hover {
  background: var(--color-surface-alt);
}

.explorer-item-icon {
  display: inline-block;
  width: 20px;
  margin-right: 0.5rem;
  text-align: center;
}

.explorer-folder {
  padding: 0.5rem;
  cursor: pointer;
  transition: background 0.2s ease;
  border-radius: 4px;
}

.explorer-folder:hover {
  background: var(--color-surface-alt);
}

.explorer-folder-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.explorer-folder-toggle {
  width: 16px;
  text-align: center;
  transition: transform 0.2s ease;
}

.explorer-folder.expanded .explorer-folder-toggle {
  transform: rotate(90deg);
}

.explorer-folder-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  font-size: 0.9rem;
  color: var(--color-text-on-surface);
}

.explorer-folder-count {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  background: var(--color-surface-alt);
  padding: 0.2rem 0.5rem;
  border-radius: 10px;
}

.explorer-folder-children {
  margin-left: 2rem;
  margin-top: 0.25rem;
  display: none;
}

.explorer-folder.expanded .explorer-folder-children {
  display: block;
}

.explorer-file {
  padding: 0.5rem;
  padding-left: 1.5rem;
  cursor: pointer;
  transition: background 0.2s ease;
  border-radius: 4px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-on-surface);
}

.explorer-file:hover {
  background: var(--color-surface-alt);
}

.explorer-file-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.explorer-file-badge {
  font-size: 0.75rem;
  background: var(--color-button);
  color: var(--color-button-text);
  padding: 0.2rem 0.5rem;
  border-radius: 8px;
}

/* Bouton d'explorateur de notes flottant */
.note-explorer-toggle {
  position: fixed !important;
  top: 80px;
  right: 20px;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15) !important;
}

.note-explorer-toggle:hover {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2) !important;
}

/* Responsive */
@media (max-width: 768px) {
  .group-explorer-sidebar {
    width: 100%;
    right: -100%;
  }
  
  .explorer-toggle-btn {
    padding: 0.6rem 0.8rem;
    font-size: 0.85rem;
  }
  
  .note-explorer-toggle {
    top: 70px;
    right: 15px;
  }
}