/* === Styles Généraux === */
body {
    font-family: var(--theme-font-family);
    background-color: var(--theme-background);
    color: var(--theme-text);
    text-shadow: var(--theme-text-shadow);
    margin: 0;
    padding: 0;
}

main {
    max-width: 2000px;
    margin: auto;
    padding: 20px;
}
















/* Cartes de ressource */
.resource-card {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--theme-section-shadow);
  position: relative;
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.resource-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.resource-card:hover .resource-image {
  transform: scale(1.05);
}

.resource-content {
  padding: var(--spacing-lg);
}

.resource-type {
  display: inline-block;
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-xl);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
}

.resource-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--theme-text);
  margin-bottom: var(--spacing-sm);
}

.resource-description {
  color: var(--theme-text);
  opacity: 0.8;
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
}

.resource-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* Quiz et exercices */
.quiz-container {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--theme-section-shadow);
}

.quiz-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.quiz-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--theme-text);
  margin-bottom: var(--spacing-sm);
}

.quiz-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.quiz-question {
  background: var(--theme-background);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  border-left: 4px solid var(--theme-primary);
}

.question-number {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--theme-primary);
  margin-bottom: var(--spacing-sm);
}

.question-text {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--theme-text);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.quiz-options {
  display: grid;
  gap: var(--spacing-md);
}

.quiz-option {
  background: var(--theme-tertiary);
  border: 2px solid var(--theme-secondary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.quiz-option:hover {
  border-color: var(--theme-primary);
  background: var(--theme-secondary);
  transform: translateX(5px);
}

.quiz-option.selected {
  border-color: var(--theme-primary);
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.quiz-option.correct {
  border-color: #22c55e;
  background: #f0fdf4;
  color: #15803d;
}

.quiz-option.incorrect {
  border-color: #ef4444;
  background: #fef2f2;
  color: #dc2626;
}

/* Stats et métriques */
.stat-card {
  background: linear-gradient(135deg, var(--theme-primary), var(--theme-secondary));
  color: var(--theme-button-primary-text);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: all var(--transition-slow);
}

.stat-card:hover::before {
  transform: scale(1.5);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  position: relative;
  z-index: 10;
}

.stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 10;
}

.stat-icon {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: var(--font-size-2xl);
  opacity: 0.3;
}

/* ====================================================================
   ANIMATIONS ET EFFETS AVANCÉS
==================================================================== */

/* Effet de parallaxe */
.parallax-section {
  position: relative;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.parallax-content {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: var(--spacing-xxl);
  border-radius: var(--border-radius-xl);
  text-align: center;
  backdrop-filter: blur(10px);
}

/* Animations d'apparition */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translateY(0);
  }
  40%, 43% {
    transform: translateY(-10px);
  }
  70% {
    transform: translateY(-5px);
  }
  90% {
    transform: translateY(-2px);
  }
}

/* Classes d'animation */
.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.fade-in-left {
  animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
  animation: fadeInRight 0.6s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

.bounce {
  animation: bounce 1s infinite;
}

/* Effet de survol sophistiqué */
.hover-lift {
  transition: all var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.hover-glow {
  transition: all var(--transition-normal);
}

.hover-glow:hover {
  box-shadow: 0 0 20px var(--theme-primary);
}

.hover-scale {
  transition: transform var(--transition-normal);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* ====================================================================
   RESPONSIVE DESIGN AVANCÉ
==================================================================== */

/* Breakpoints avec espacement amélioré */
@media (min-width: 576px) and (max-width: 767.98px) {
  .row {
    margin: 0 calc(-1 * var(--spacing-md));
  }
  
  .col,
  .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
  .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
    padding: 0 var(--spacing-md);
  }
  
  .resource-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
}

@media (min-width: 768px) and (max-width: 1991.98px) {
  .row {
    margin: 0 calc(-1 * var(--spacing-md));
  }
  
  .col,
  .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
  .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
    padding: 0 var(--spacing-md);
  }
  
  .resource-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }
}

@media (min-width: 992px) {
  .resource-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
  }
  
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
  }
}/*
================================================================================
Style-avancé.css - Système de styles avancés pour l'interface éducative
================================================================================
Version 1.0 - Interface utilisateur pour site éducatif Histoire-Géographie
Auteur : Emile SNYERS
Date : 2025-06-07
Licence : © Emile SNYERS 2025 - Tous droits réservés
Description : Styles complets et sophistiqués compatibles avec le système de thèmes dynamiques
Utilisation : Inclure après theme.css et styles.css pour bénéficier des styles avancés
================================================================================
*/

/* ====================================================================
   RESET ET FONDATIONS
==================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
}

/* Variables supplémentaires pour cohérence */
:root {
  --content-max-width: 1200px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 0.7rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.35s ease;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
}

/* ====================================================================
   TYPOGRAPHIE AVANCÉE
==================================================================== */

.text-display {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--theme-text);
  margin-bottom: var(--spacing-lg);
}

.text-headline {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  line-height: var(--line-height-snug);
  color: var(--theme-text);
  margin-bottom: var(--spacing-md);
}

.text-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  line-height: var(--line-height-snug);
  color: var(--theme-text);
  margin-bottom: var(--spacing-md);
}

.text-subtitle {
  font-size: var(--font-size-lg);
  font-weight: 500;
  line-height: var(--line-height-normal);
  color: var(--theme-text);
  opacity: 0.8;
  margin-bottom: var(--spacing-sm);
}

.text-body {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--theme-text);
  margin-bottom: var(--spacing-md);
}

.text-caption {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--theme-text);
  opacity: 0.7;
}

.text-overline {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--theme-primary);
  margin-bottom: var(--spacing-xs);
}

/* États de texte */
.text-muted { opacity: 0.6; }
.text-primary { color: var(--theme-primary); }
.text-secondary { color: var(--theme-secondary); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

/* ====================================================================
   SYSTÈME DE GRILLE FLEXIBLE
==================================================================== */

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 calc(-1 * var(--spacing-md));
  gap: 0;
}

.col {
  flex: 1;
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

/* Colonnes responsives */
.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }

/* Toutes les colonnes héritent du padding de base */
.col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
.col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

/* Espacement supplémentaire pour les colonnes sur grands écrans */
@media (min-width: 992px) {
  .row {
    margin: 0 calc(-1 * var(--spacing-lg));
  }
  
  .col,
  .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
  .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
    padding: 0 var(--spacing-lg);
  }
}

/* ====================================================================
   CARTES MODERNES
==================================================================== */

.card {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--theme-section-shadow);
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.05);
  padding: 1rem;
}

.card:hover {
  transform: var(--theme-section-hover-transform);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-header {
  padding: var(--spacing-lg);
  background: var(--theme-secondary);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.card-header h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--theme-text);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  background: var(--theme-background);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Variantes de cartes */
.card-elevated {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-outlined {
  border: 2px solid var(--theme-primary);
  box-shadow: none;
}

.card-ghost {
  background: transparent;
  border: 1px dashed var(--theme-primary);
  box-shadow: none;
}

/* ====================================================================
   BOUTONS SOPHISTIQUÉS
==================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  min-height: 44px; /* Accessibilité tactile */
}

.btn:focus {
  outline: 2px solid var(--theme-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Variantes principales */
.btn-primary {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  filter: brightness(1.05);
}

.btn-secondary {
  background: var(--theme-secondary);
  color: var(--theme-button-secondary-text);
}

.btn-secondary:hover {
  transform: translateY(-1px);
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--theme-primary);
  color: var(--theme-primary);
}

.btn-outline:hover {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--theme-primary);
}

.btn-ghost:hover {
  background: var(--theme-secondary);
}

/* Tailles de boutons */
.btn-xs {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  min-height: 32px;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  min-height: 36px;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  min-height: 52px;
}

.btn-xl {
  padding: var(--spacing-lg) var(--spacing-xxl);
  font-size: var(--font-size-xl);
  min-height: 60px;
}

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

/* Effet ripple */
.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

/* ====================================================================
   PANNEAUX ET SECTIONS AVANCÉS
==================================================================== */

.panel {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--theme-section-shadow);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
}

.panel-header {
  padding: var(--spacing-lg);
  background: var(--theme-secondary);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-title {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--theme-text);
}

.panel-content {
  padding: var(--spacing-lg);
}

.panel-footer {
  padding: var(--spacing-lg);
  background: var(--theme-background);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* Panneau collapsible */
.panel-collapsible .panel-header {
  cursor: pointer;
  user-select: none;
}

.panel-collapsible .panel-header:hover {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.panel-collapsible .panel-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
  padding: 0 var(--spacing-lg);
}

.panel-collapsible.active .panel-content {
  max-height: 1000px;
  padding: var(--spacing-lg);
}

/* Indicateur d'état collapsible */
.panel-toggle {
  transition: transform var(--transition-normal);
}

.panel-collapsible.active .panel-toggle {
  transform: rotate(180deg);
}

/* ====================================================================
   TABLEAUX MODERNES
==================================================================== */

.table-container {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--theme-section-shadow);
  margin-bottom: var(--spacing-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  margin: 0;
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.table th {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: sticky;
  top: 0;
  z-index: 10;
}

.table tbody tr {
  transition: all var(--transition-fast);
}

.table tbody tr:hover {
  background: var(--theme-secondary);
  transform: scale(1.01);
}

.table tbody tr:nth-child(even) {
  background: var(--theme-background);
}

.table tbody tr:nth-child(odd) {
  background: var(--theme-tertiary);
}

/* Tableaux responsives */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Variantes de tableaux */
.table-striped tbody tr:nth-child(odd) {
  background: rgba(0, 0, 0, 0.02);
}

.table-bordered {
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.table-bordered th,
.table-bordered td {
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.table-sm th,
.table-sm td {
  padding: var(--spacing-sm);
}

/* ====================================================================
 MENUS
==================================================================== */


/* Menu dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: var(--spacing-sm);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  z-index: 1000;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--theme-text);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--theme-secondary);
}

/* ====================================================================
   FORMULAIRES AVANCÉS
==================================================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--theme-text);
  font-size: var(--font-size-sm);
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--theme-secondary);
  border-radius: var(--border-radius-md);
  background: var(--theme-tertiary);
  color: var(--theme-text);
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
}

.form-control:focus {
  outline: none;
  border-color: var(--theme-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

.form-control:hover {
  border-color: var(--theme-primary);
}

/* États de validation */
.form-control.is-valid {
  border-color: #22c55e;
}

.form-control.is-invalid {
  border-color: #ef4444;
}

/* Champs spécialisés */
.form-control-lg {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-lg);
}

.form-control-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
}

/* Groupes d'input */
.input-group {
  display: flex;
  width: 100%;
}

.input-group .form-control {
  border-radius: 0;
}

.input-group .form-control:first-child {
  border-top-left-radius: var(--border-radius-md);
  border-bottom-left-radius: var(--border-radius-md);
}

.input-group .form-control:last-child {
  border-top-right-radius: var(--border-radius-md);
  border-bottom-right-radius: var(--border-radius-md);
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--theme-secondary);
  border: 2px solid var(--theme-secondary);
  color: var(--theme-text);
}

/* ====================================================================
   ALERTES ET NOTIFICATIONS
==================================================================== */

.alert {
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
  border-left: 4px solid;
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.alert-success {
  background: #f0fdf4;
  color: #15803d;
  border-left-color: #22c55e;
}

.alert-warning {
  background:  var(--theme-secondary);
  color: #d97706;
  border-left-color: var(--theme-primary);
}

.alert-danger {
  background: #fef2f2;
  color: #dc2626;
  border-left-color: #ef4444;
}

.alert-info {
  background: var(--theme-tertiary);
  color: var(--theme-text);
  border-left-color: var(--theme-primary);
}

.alert-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.alert-dismissible {
  padding-right: 3rem;
}

.alert-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.alert-close:hover {
  opacity: 1;
}

/* ====================================================================
   BADGES ET ÉTIQUETTES
==================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--border-radius-xl);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.badge-secondary {
  background: var(--theme-secondary);
  color: var(--theme-button-secondary-text);
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--theme-primary);
  color: var(--theme-primary);
}

.badge-lg {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ====================================================================
   PROGRESS BARS
==================================================================== */

.progress {
  width: 100%;
  height: 8px;
  background: var(--theme-secondary);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.progress-bar {
  height: 100%;
  background: var(--theme-primary);
  border-radius: var(--border-radius-xl);
  transition: width var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

.progress-lg {
  height: 12px;
}

.progress-sm {
  height: 4px;
}

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

/* ====================================================================
   LISTES SOPHISTIQUÉES
==================================================================== */

.list-group {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--theme-section-shadow);
}

.list-group-item {
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  color: var(--theme-text);
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.list-group-item:last-child {
  border-bottom: none;
}

.list-group-item:hover {
  background: var(--theme-secondary);
  transform: translateX(5px);
}

.list-group-item.active {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.list-group-item-action {
  cursor: pointer;
}

.list-group-flush .list-group-item {
  border-radius: 0;
  border-left: none;
  border-right: none;
}

/* ====================================================================
   MODALES ET OVERLAYS
==================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-xl);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 500px;
  width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  transform: translateY(-50px);
  transition: all var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  padding: var(--spacing-xl);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.modal-close:hover {
  opacity: 1;
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.modal-footer {
  padding: var(--spacing-xl);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

/* ====================================================================
   TOOLTIPS
==================================================================== */

.tooltip {
  position: relative;
  cursor: help;
}

.tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--theme-text);
  color: var(--theme-tertiary);
  font-size: var(--font-size-sm);
  border-radius: var(--border-radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 1000;
  margin-bottom: 5px;
}

.tooltip::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--theme-text);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.tooltip:hover::before,
.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ====================================================================
   UTILITAIRES DE LAYOUT
==================================================================== */

/* Espacement */
.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-3 { margin: var(--spacing-md); }
.m-4 { margin: var(--spacing-lg); }
.m-5 { margin: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

/* Marges et paddings spécifiques */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--spacing-xs); }
.ml-2 { margin-left: var(--spacing-sm); }
.ml-3 { margin-left: var(--spacing-md); }
.ml-4 { margin-left: var(--spacing-lg); }
.ml-5 { margin-left: var(--spacing-xl); }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--spacing-xs); }
.mr-2 { margin-right: var(--spacing-sm); }
.mr-3 { margin-right: var(--spacing-md); }
.mr-4 { margin-right: var(--spacing-lg); }
.mr-5 { margin-right: var(--spacing-xl); }

/* Flexbox utilitaires */
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-block { display: block; }
.d-inline-block { display: inline-block; }
.d-none { display: none; }

.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.align-start { align-items: flex-start; }
.align-center { align-items: center; }
.align-end { align-items: flex-end; }
.align-stretch { align-items: stretch; }

.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.flex-none { flex: none; }

/* Position */
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }
.position-sticky { position: sticky; }

/* Débordement */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }

/* Visibilité */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ====================================================================
   COMPOSANTS ÉDUCATIFS SPÉCIALISÉS
==================================================================== */

/* Timeline éducative */
.timeline {
  position: relative;
  padding: var(--spacing-xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--theme-primary);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xxl);
  display: flex;
  align-items: center;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-content {
  background: var(--theme-tertiary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--theme-section-shadow);
  width: 45%;
  position: relative;
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  transform: var(--theme-section-hover-transform);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.timeline-marker {
  width: 20px;
  height: 20px;
  background: var(--theme-primary);
  border: 4px solid var(--theme-tertiary);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.timeline-date {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--theme-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--theme-text);
}

/* Cartes de chapitre */
.chapter-card {
  background: linear-gradient(135deg, var(--theme-tertiary), var(--theme-secondary));
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.chapter-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--theme-primary);
}

.chapter-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.chapter-number {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 40px;
  height: 40px;
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.chapter-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--theme-text);
  margin-bottom: var(--spacing-md);
  padding-right: 60px;
}

.chapter-description {
  color: var(--theme-text);
  opacity: 0.8;
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.chapter-meta {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.chapter-duration,
.chapter-difficulty {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--theme-text);
  opacity: 0.7;
}

/* Grilles avec espacement amélioré */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}
/* Responsive spacing adjustments */
@media (max-width: 575.98px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .row {
    margin: 0 calc(-1 * var(--spacing-sm));
  }
  
  .col,
  .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
  .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
    flex: 0 0 100%;
    max-width: 100%;
    padding: 0 var(--spacing-sm);
    margin-bottom: var(--spacing-md);
  }
  
  .text-display {
    font-size: var(--font-size-3xl);
  }
  
  .text-headline {
    font-size: var(--font-size-2xl);
  }
  
  .btn {
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
  }
  
  .card-body,
  .panel-content {
    padding: var(--spacing-md);
  }
  
  .timeline::before {
    left: var(--spacing-md);
  }
  
  .timeline-item {
    flex-direction: column;
    padding-left: var(--spacing-xl);
  }
  
  .timeline-content {
    width: 100%;
  }
  
  .timeline-marker {
    left: var(--spacing-md);
  }
  
  .chapter-card {
    padding: var(--spacing-lg);
  }
  
  .chapter-number {
    position: static;
    margin-bottom: var(--spacing-md);
    align-self: flex-start;
  }
  
  .chapter-title {
    padding-right: 0;
  }
  
  .resource-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  .resource-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) and (max-width: 991.98px) {
  .resource-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .resource-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ====================================================================
   PRINT STYLES
==================================================================== */

@media print {
  .btn,
  .navbar,
  .modal-overlay,
  .tooltip,
  .alert-dismissible .alert-close {
    display: none !important;
  }
  
  .card,
  .panel,
  .table-container {
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  .page-break {
    page-break-after: always;
  }
  
  .no-print {
    display: none !important;
  }
}

/* ====================================================================
   ACCESSIBILITÉ
==================================================================== */

/* Focus visible amélioré */
.btn:focus-visible,
.form-control:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--theme-primary);
  outline-offset: 2px;
}

/* Réduction des mouvements pour les utilisateurs sensibles */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Mode sombre automatique */
@media (prefers-color-scheme: dark) {
  :root {
    --auto-background: #1a1a1a;
    --auto-text: #e4e7ea;
    --auto-border: rgba(255, 255, 255, 0.1);
  }
}

/* Taille de police utilisateur */
@media (prefers-reduced-data: reduce) {
  .resource-image {
    display: none;
  }
  
  .parallax-section {
    background-image: none !important;
  }
}

/* Contraste élevé */
@media (prefers-contrast: high) {
  .btn,
  .card,
  .panel,
  .form-control {
    border: 2px solid currentColor;
  }
}

/* ====================================================================
   COMPOSANTS DE NAVIGATION ÉDUCATIVE
==================================================================== */

/* Breadcrumb éducatif */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--theme-secondary);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--theme-text);
  font-size: var(--font-size-sm);
}

.breadcrumb-item:not(:last-child)::after {
  content: '›';
  color: var(--theme-primary);
  font-weight: bold;
  margin-left: var(--spacing-sm);
}

.breadcrumb-link {
  color: var(--theme-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.breadcrumb-link:hover {
  text-decoration: underline;
  color: var(--theme-text);
}

/* Pagination éducative */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-xl) 0;
}

.pagination-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-md);
  background: var(--theme-tertiary);
  color: var(--theme-text);
  text-decoration: none;
  transition: all var(--transition-normal);
  font-weight: 500;
}

.pagination-item:hover {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
  transform: translateY(-2px);
}

.pagination-item.active {
  background: var(--theme-primary);
  color: var(--theme-button-primary-text);
}

.pagination-item.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ====================================================================
   COMPOSANTS MULTIMÉDIAS ÉDUCATIFS
==================================================================== */

/* Lecteur vidéo éducatif */
.video-container {
  position: relative;
  background: var(--theme-tertiary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--theme-section-shadow);
  margin-bottom: var(--spacing-lg);
}

.video-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-wrapper iframe,
.video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-info {
  padding: var(--spacing-lg);
}

.video-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--theme-text);
  margin-bottom: var(--spacing-sm);
}

.video-description {
  color: var(--theme-text);
  opacity: 0.8;
  line-height: var(--line-height-relaxed);
}

/* Galerie d'images éducative */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.gallery-item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--theme-section-shadow);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.gallery-item:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.gallery-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-image {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: var(--spacing-lg);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.gallery-caption {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

/* ====================================================================
   FOOTER ET FERMETURE
==================================================================== */

/* Reset de quelques éléments pour éviter les conflits */
.advanced-reset {
  box-sizing: border-box;
}

.advanced-reset *,
.advanced-reset *::before,
.advanced-reset *::after {
  box-sizing: inherit;
}

/* Classe utilitaire pour le debug */
.debug {
  border: 1px solid red !important;
}

.debug-grid {
  background: rgba(255, 0, 0, 0.1) !important;
}

/*
================================================================================
FIN DU FICHIER Style-avancé.css
================================================================================
Ce fichier CSS fournit une base complète et sophistiquée pour créer des interfaces
éducatives modernes et responsives. Il est conçu pour s'intégrer parfaitement
avec le système de thèmes dynamiques existant.

Utilisation recommandée :
1. Inclure après theme.css et styles.css
2. Personnaliser les variables CSS selon vos besoins
3. Utiliser les classes utilitaires pour un développement rapide
4. Tester la responsivité sur différents appareils

Pour toute question ou amélioration, contactez : emile.snyers@example.com
================================================================================
*/