/**
 * Components.css - Composants UI Réutilisables
 * =============================================
 * Tous les éléments d'interface réutilisables
 * Boutons, Inputs, Cards, Modales, etc.
 */

/* ===========================================
   1. BUTTONS
   Styles de boutons avec variantes
   =========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  min-height: var(--btn-height-md);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-border-hover);
}

.btn:active {
  background-color: var(--color-surface-active);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Bouton Primary - Style moderne 2026 avec gradient subtil */
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  border-color: transparent;
  box-shadow: 0 2px 4px rgba(32, 105, 119, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-hover) 0%, var(--color-primary-active) 100%);
  box-shadow: 0 4px 12px rgba(32, 105, 119, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(32, 105, 119, 0.3);
}

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

.btn-success:hover {
  background-color: var(--color-success-hover);
  border-color: var(--color-success-hover);
}

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

.btn-danger:hover {
  background-color: var(--color-danger-hover);
  border-color: var(--color-danger-hover);
}

.btn-warning {
  color: var(--color-text-inverse);
  background-color: var(--color-warning);
  border-color: var(--color-warning);
}

.btn-warning:hover {
  background-color: var(--color-warning-hover);
  border-color: var(--color-warning-hover);
}

/* Variantes outline (fond transparent) */
.btn-outline-primary {
  color: var(--color-primary);
  background-color: transparent;
  border-color: var(--color-primary);
}

.btn-outline-primary:hover {
  color: #fff;
  background-color: var(--color-primary);
}

.btn-outline-danger {
  color: var(--color-danger);
  background-color: transparent;
  border-color: var(--color-danger);
}

.btn-outline-danger:hover {
  color: #fff;
  background-color: var(--color-danger);
}

/* Variantes ghost (très subtile) */
.btn-ghost {
  background-color: transparent;
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--color-surface-hover);
}

/* Ghost avec couleur danger (icone rouge) */
.btn-ghost.btn-danger,
.btn-ghost.btn-danger svg,
.btn-icon.btn-ghost.btn-danger {
  color: var(--color-danger);
  background-color: transparent;
  border-color: transparent;
}

.btn-ghost.btn-danger svg {
  stroke: var(--color-danger);
}

.btn-ghost.btn-danger:hover,
.btn-icon.btn-ghost.btn-danger:hover {
  color: var(--color-danger-hover);
  background-color: var(--color-danger-bg);
}

.btn-ghost.btn-danger:hover svg {
  stroke: var(--color-danger-hover);
}

/* Tailles */
.btn-sm {
  min-height: var(--btn-height-sm);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
}

.btn-lg {
  min-height: var(--btn-height-lg);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
}

/* Bouton icône seule */
.btn-icon {
  width: var(--btn-height-md);
  padding: 0;
}

.btn-icon.btn-sm {
  width: var(--btn-height-sm);
}

.btn-icon.btn-lg {
  width: var(--btn-height-lg);
}

/* Bouton pleine largeur */
.btn-block {
  width: 100%;
}

/* ===========================================
   2. FORM ELEMENTS
   Inputs, selects, textareas
   =========================================== */

/* Input de base - Style moderne 2026 */
.input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  min-height: var(--input-height-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.input:hover:not(:focus) {
  border-color: var(--color-border-hover);
  background: var(--color-surface-hover);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px var(--color-primary-bg), 0 2px 8px rgba(32, 105, 119, 0.1);
}

/* Textarea amélioré */
textarea.input {
  line-height: var(--leading-relaxed);
}

textarea.input:focus {
  box-shadow: 0 0 0 3px var(--color-primary-bg), 0 4px 12px rgba(32, 105, 119, 0.1);
}

/* Select moderne - moderne 2026 */
select.input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

select.input:hover {
  border-color: var(--color-border-hover);
}

select.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

[data-theme="dark"] select.input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

/* Options du select - fix texte blanc sur fond blanc en mode dark */
select.input option {
  background-color: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-2);
}

/* Mode dark - forcer fond et texte des options pour lisibilité */
[data-theme="dark"] select.input option {
  background-color: #2a3a4a;
  color: #d0d0d0;
}

/* Fix spécifique pour Firefox et autres navigateurs */
[data-theme="dark"] select.input {
  color-scheme: dark;
}

/* Fallback: forcer couleur grise sur les options quand dropdown ouvert */
select.input option:checked,
select.input option:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text);
}

.input::placeholder {
  color: var(--color-text-muted);
}

.input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--color-bg-secondary);
}

/* Variante erreur */
.input.is-invalid {
  border-color: var(--color-danger);
}

.input.is-invalid:focus {
  box-shadow: 0 0 0 3px var(--color-danger-bg);
}

/* Tailles input */
.input-sm {
  min-height: var(--input-height-sm);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
}

.input-lg {
  min-height: var(--input-height-lg);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
}

/* Select */
select.input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239ca3af' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
}

/* Options dans les selects - Fix couleurs dropdown */
select,
select.input {
  background-color: var(--color-surface);
}

select option,
select.input option {
  background-color: var(--color-surface);
  color: var(--color-text);
  padding: 8px 12px;
}

select option:hover,
select.input option:hover {
  background-color: var(--color-surface-hover);
}

select option:checked,
select.input option:checked {
  background-color: var(--color-primary);
  color: white;
}

/* Dark theme - Force les couleurs des options du dropdown */
[data-theme="dark"] select,
[data-theme="dark"] select.input {
  background-color: var(--color-surface);
}

[data-theme="dark"] select option,
[data-theme="dark"] select.input option {
  background-color: #1f2937;
  color: #e5e7eb;
}

[data-theme="dark"] select option:checked,
[data-theme="dark"] select.input option:checked {
  background-color: var(--color-primary);
  color: white;
}

/* Textarea */
textarea.input {
  min-height: 100px;
  resize: vertical;
}

/* Textarea auto-grow */
.textarea-autogrow {
  resize: none;
  overflow: hidden;
}

/* Form group */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
}

.form-label.required::after {
  content: " *";
  color: var(--color-danger);
}

.form-hint {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.form-error {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-danger);
}

/* Checkbox et Radio */
.checkbox-group,
.radio-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.checkbox,
.radio {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* ===========================================
   3. CARDS
   Conteneurs visuels
   =========================================== */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.card-body {
  padding: var(--space-4);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* Card interactive */
.card-interactive {
  cursor: pointer;
  transition: var(--transition-fast);
}

.card-interactive:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-md);
}

/* Cards avec effet de profondeur moderne 2026 */
.card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(32, 105, 119, 0.05);
}

.stat-card,
.project-card,
.quick-action-card {
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-card:hover,
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(32, 105, 119, 0.08);
  border-color: var(--color-primary-border);
}

.quick-action-card:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-lg);
}

/* ===========================================
   4. BADGES
   Labels et tags
   =========================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-full);
}

.badge-primary {
  color: var(--color-primary);
  background-color: var(--color-primary-bg);
}

.badge-success {
  color: var(--color-success);
  background-color: var(--color-success-bg);
}

.badge-danger {
  color: var(--color-danger);
  background-color: var(--color-danger-bg);
}

.badge-warning {
  color: var(--color-warning);
  background-color: var(--color-warning-bg);
}

.badge-info {
  color: var(--color-info);
  background-color: var(--color-info-bg);
}

/* ===========================================
   5. ALERTS
   Messages d'information
   =========================================== */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid;
}

.alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.alert-info {
  color: var(--color-info);
  background-color: var(--color-info-bg);
  border-color: var(--color-info-border);
}

.alert-success {
  color: var(--color-success);
  background-color: var(--color-success-bg);
  border-color: var(--color-success-border);
}

.alert-warning {
  color: var(--color-warning);
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning-border);
}

.alert-danger {
  color: var(--color-danger);
  background-color: var(--color-danger-bg);
  border-color: var(--color-danger-border);
}

/* ===========================================
   6. MODALS
   Fenêtres modales - Style GAFA centré
   =========================================== */

/* Modal wrapper - Overlay plein écran centré */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal[style*="display: flex"],
.modal.show {
  display: flex;
}

/* Backdrop semi-transparent */
.modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  animation: backdrop-fade-in 0.2s ease-out;
}

@keyframes backdrop-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Contenu du modal - centré et animé */
.modal-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 500px;
  max-height: calc(100vh - var(--space-8));
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-float);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modal-scale-in 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modal animations - moderne 2026 */
@keyframes modal-scale-in {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Tailles variantes du modal */
.modal-content.modal-lg,
.modal .modal-lg {
  max-width: 700px;
}

.modal-content.modal-xl,
.modal .modal-xl {
  max-width: 900px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-text);
  background-color: var(--color-surface-hover);
}

.modal-body {
  flex: 1;
  padding: var(--space-5);
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
}

/* ===========================================
   7. TOASTS / NOTIFICATIONS
   Messages temporaires
   =========================================== */

.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 400px;
}

/* Toast animations - moderne 2026 */
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: toast-slide-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes toast-slide-in {
  from {
    transform: translateX(100%) scale(0.95);
    opacity: 0;
  }
  to {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
}

.toast.toast-exit {
  animation: toast-slide-out 0.2s ease-in forwards;
}

@keyframes toast-slide-out {
  to {
    transform: translateX(100%) scale(0.95);
    opacity: 0;
  }
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.toast-close {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
}

.toast-close:hover {
  background-color: var(--color-surface-hover);
}

.toast-success .toast-icon { color: var(--color-success); }
.toast-danger .toast-icon { color: var(--color-danger); }
.toast-warning .toast-icon { color: var(--color-warning); }
.toast-info .toast-icon { color: var(--color-info); }

/* ===========================================
   8. SPINNERS / LOADERS
   Indicateurs de chargement
   =========================================== */

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spinner-rotate 0.8s linear infinite;
}

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

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

/* Overlay de chargement */
.loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(15, 17, 21, 0.8);
  z-index: var(--z-modal);
}

/* ===========================================
   9. TABLES
   Tableaux de données
   =========================================== */

.table-container {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-bg-secondary);
}

.table tbody tr:hover {
  background-color: var(--color-surface-hover);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* Table admin - colonnes plus espacées */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.admin-table th {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-bg-secondary);
}

.admin-table tbody tr:hover {
  background-color: var(--color-surface-hover);
}

.admin-table tbody tr:last-child td {
  border-bottom: none;
}

/* Colonnes spécifiques */
.admin-table th:first-child,
.admin-table td:first-child {
  padding-left: var(--space-6);
}

.admin-table th:last-child,
.admin-table td:last-child {
  padding-right: var(--space-6);
  text-align: right;
}

/* Actions column - plus d'espace pour les boutons */
.admin-table td:last-child {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  align-items: center;
}

/* ===========================================
   10. DROPDOWN
   Menus déroulants
   =========================================== */

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: var(--z-dropdown);
  min-width: 180px;
  padding: var(--space-2);
  margin-top: var(--space-1);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
  display: none;
}

.dropdown.open .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--color-surface-hover);
}

.dropdown-item.danger {
  color: var(--color-danger);
}

.dropdown-divider {
  height: 1px;
  margin: var(--space-2) 0;
  background-color: var(--color-border);
}

/* ===========================================
   11. AVATAR
   Images de profil
   =========================================== */

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background-color: var(--color-surface-hover);
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 56px; height: 56px; }
.avatar-xl { width: 80px; height: 80px; }

.avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  background-color: var(--color-primary-bg);
}

/* ===========================================
   12. EMPTY STATE
   États vides
   =========================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
  text-align: center;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 400px;
  margin-bottom: var(--space-6);
}

/* ===========================================
   13. PROGRESS BAR
   Barres de progression
   =========================================== */

.progress {
  height: 8px;
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.progress-bar-success { background-color: var(--color-success); }
.progress-bar-danger { background-color: var(--color-danger); }
.progress-bar-warning { background-color: var(--color-warning); }

/* ===========================================
   14. THEME TOGGLE
   Bouton de basculement Light/Dark mode
   =========================================== */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-full);
  background-color: var(--color-surface-hover);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--color-surface-active);
  color: var(--color-text);
}

.theme-toggle-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.theme-toggle:hover .theme-toggle-icon {
  transform: rotate(15deg);
}

/* Icone soleil visible en mode light, masquee en dark */
.theme-toggle .icon-sun {
  display: block;
}

.theme-toggle .icon-moon {
  display: none;
}

/* En mode dark, inverser */
[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* ===========================================
   15. GLASSMORPHISM COMPONENTS
   Effets de verre modernes (style 2025)
   =========================================== */

.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
}

/* Effet de brillance sur hover */
.shine-effect {
  position: relative;
  overflow: hidden;
}

.shine-effect::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

.shine-effect:hover::before {
  left: 100%;
}

/* ===========================================
   16. MICRO-ANIMATIONS
   Animations subtiles pour feedback utilisateur
   =========================================== */

/* Pulse doux pour attirer l'attention */
@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.animate-pulse-soft {
  animation: pulse-soft 2s ease-in-out infinite;
}

/* Scale au hover */
.hover-scale {
  transition: transform var(--transition-fast);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* Lift au hover (élévation) */
.hover-lift {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Glow au hover */
.hover-glow {
  transition: box-shadow var(--transition-fast);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

/* Fade in animation */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-in {
  animation: fade-in 0.3s ease-out;
}

/* Slide up animation */
@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-slide-up {
  animation: slide-up 0.3s ease-out;
}

/* Slide in from right */
@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-slide-in-right {
  animation: slide-in-right 0.3s ease-out;
}

/* Scale in */
@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-scale-in {
  animation: scale-in 0.2s ease-out;
}

/* Shake pour erreur */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

.animate-shake {
  animation: shake 0.4s ease-in-out;
}

/* Bounce léger */
@keyframes bounce-soft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.animate-bounce-soft {
  animation: bounce-soft 0.6s ease-in-out;
}

/* Spin loading */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* ===========================================
   17. INTERACTIVE STATES
   États interactifs améliorés
   =========================================== */

/* Bouton avec animation de ripple */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.5);
  opacity: 0;
  border-radius: 100%;
  transform: scale(1) translate(-50%, -50%);
  transform-origin: center;
}

.btn-ripple:active::after {
  opacity: 1;
  transform: scale(50) translate(-50%, -50%);
  transition: transform 0.5s, opacity 0.3s;
}

/* Input focus glow */
.input-glow:focus {
  box-shadow: 0 0 0 3px var(--color-primary-bg), var(--shadow-glow);
}

/* Card hover avec border glow */
.card-glow:hover {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--color-primary-bg);
}

/* Skeleton Loading - moderne 2026 avec shimmer effect */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-hover);
  border-radius: var(--radius-md);
}

.skeleton::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 100%
  );
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

[data-theme="dark"] .skeleton::after {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
}

@keyframes skeleton-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.skeleton-text {
  height: 14px;
  margin-bottom: var(--space-2);
  border-radius: var(--radius-sm);
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: var(--space-3);
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

.skeleton-card {
  height: 140px;
  border-radius: var(--radius-lg);
}

.skeleton-button {
  height: 40px;
  width: 120px;
  border-radius: var(--radius-md);
}