/* ====================================================================
   SYSTÈME DE SURVEILLANCE COMMUNAUTAIRE - CSS COMPLET ET FINALISÉ
   Version 4.2.0 - Implémentation du sidebar rétractable
   ==================================================================== */

/* ====================================================================
   VARIABLES CSS ET CONFIGURATION DE BASE
   ==================================================================== */
:root {
  /* Couleurs principales */
  --primary-color: #e04e39; /* Rouge corail plus doux */
  --cr-red-rgb: 224, 78, 57;
  --secondary-color: #5a6a7c; /* Gris-bleu plus profond */
  --accent-color: #28a745; /* Vert plus vif */

  /* Couleurs de fond */
  --bg-primary: #ffffff;
  --bg-secondary: #f0f2f5; /* Gris clair subtil */
  --bg-tertiary: #e6e8eb;
  --bg-dark: #2c3e50; /* Bleu nuit */

  /* Couleurs de texte */
  --text-primary: #34495e; /* Gris foncé pour le texte principal */
  --text-secondary: #7f8c8d; /* Gris moyen pour le texte secondaire */
  --text-muted: #bdc3c7;
  --text-white: #ffffff;

  /* Couleurs d'état */
  --success: #28a745;
  --warning: #ffc107;
  --error: #dc3545;
  --info: #17a2b8;

  /* Espacements */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Bordures et rayons */
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --border-width: 1px;
  --border-color: #dcdfe4;

  /* Ombres */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.2s ease-out;
  --transition-slow: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
  
  /* Typographie */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-family-secondary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Tailles de police - Version moderne */
  --text-xs: 0.6875rem;    /* 11px */
  --text-sm: 0.8125rem;    /* 13px */
  --text-base: 0.9375rem;  /* 15px */
  --text-lg: 1rem;         /* 16px */
  --text-xl: 1.125rem;     /* 18px */
  --text-2xl: 1.25rem;     /* 20px */
  --text-3xl: 1.5rem;      /* 24px */
  --text-4xl: 1.875rem;    /* 30px */
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* Support prefers-reduced-motion pour accessibilité */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ====================================================================
   RESET ET BASE
   ==================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ====================================================================
   AJOUT POUR LA MODALE DE BLOCAGE
   ==================================================================== */
body.locked {
  overflow: hidden; /* Empêche le défilement de la page derrière la modale */
}

body.locked .app-container {
  filter: blur(4px); /* Floute l'application en arrière-plan */
  user-select: none;
  pointer-events: none;
  transition: filter 0.3s ease;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
  font-size: 16px;
}

body {
  font-family: var(--font-family-primary);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  overflow-x: hidden;
  opacity: 0;
  transition: opacity 0.5s ease;
  font-weight: var(--font-weight-normal);
  letter-spacing: -0.011em;
}

body.fade-in {
  opacity: 1;
}

/* ====================================================================
   CONTENEUR PRINCIPAL ET LAYOUT
   ==================================================================== */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* ====================================================================
   SIDEBAR - NAVIGATION GAUCHE
   ==================================================================== */
.sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--primary-color) 0%, #c0392b 100%);
  color: var(--text-white);
  border-right: none;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.sidebar-header {
  padding: var(--spacing-md);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  position: sticky;
  top: 0;
  z-index: 1100;
  background: linear-gradient(180deg, var(--primary-color) 0%, #c0392b 100%);
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  margin: 0 auto var(--spacing-xs);
  display: block;
  border-radius: var(--radius-md);
  background-color: var(--text-white);
  padding: 4px;
  box-shadow: var(--shadow-sm);
}

.sidebar-header p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
  margin: 0;
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.01em;
}

.data-groups {
  flex: 1;
  padding: var(--spacing-md);
  background-color: var(--bg-primary);
}

.sidebar-menu {
  list-style: none;
}

.group-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  border: 1px solid transparent;
  text-decoration: none;
}

.group-item:hover {
  background: rgba(var(--cr-red-rgb), 0.08);
  color: var(--primary-color);
  transform: translateX(6px);
}

.group-item.active {
  background-color: var(--primary-color);
  color: var(--text-white);
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
}

.group-item i {
  width: 1.4rem;
  font-size: 1.2rem;
  margin-right: var(--spacing-sm);
}

.group-item span {
  font-weight: var(--font-weight-medium);
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
}

.menu-parent > span {
  flex: 1;
}

.menu-toggle {
  font-size: 0.9rem;
  transition: transform 0.3s ease;
}

.menu-toggle.open {
  transform: rotate(180deg);
}

.submenu {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.4s ease;
  opacity: 0;
}

.submenu.open {
  max-height: 800px;
  opacity: 1;
}

.submenu .group-item {
  margin-left: var(--spacing-md);
  padding-left: var(--spacing-sm);
}

/* ====================================================================
   CONTENU PRINCIPAL
   ==================================================================== */
.main-content {
  flex: 1;
  margin-left: 280px;
  transition: margin-left var(--transition-slow);
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.main-header {
  background: linear-gradient(90deg, var(--primary-color) 0%, #c0392b 100%);
  padding: var(--spacing-md) var(--spacing-xl);
  color: var(--text-white);
  position: sticky;
  top: 0;
  z-index: 900;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-title h1 {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: 2px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.header-title p {
  font-size: var(--text-sm);
  opacity: 0.9;
  margin: 0;
  font-weight: var(--font-weight-normal);
  letter-spacing: -0.01em;
}

.header-actions {
  display: flex;
  gap: var(--spacing-md);
}

/* ====================================================================
   BOUTONS
   ==================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: var(--transition);
  text-transform: none;
  letter-spacing: -0.01em;
  font-family: var(--font-family-primary);
  font-size: var(--text-sm);
}

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

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background-color: #c0392b;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--text-secondary);
  color: var(--text-white);
  border-color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ====================================================================
   LAYOUT DU DASHBOARD
   ==================================================================== */
.dashboard-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--spacing-2xl);
  padding: var(--spacing-xl);
  min-height: calc(100vh - 80px);
  max-width: 100vw;
  overflow-x: hidden;
  transition: grid-template-columns 0.5s cubic-bezier(0.4, 0, 0.2, 1), 
              gap 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  flex: 1;
  overflow-y: auto;
}

.main-dashboard-content {
  width: 100%;
  min-width: 0;
  transition: var(--transition-slow);
  overflow-y: auto;
}

/* ====================================================================
   SIDEBAR DE FILTRES (DROITE) - CORRECTION DU CHEVAUCHEMENT
   ==================================================================== */
.filters-column-wrapper {
  position: relative;
  z-index: 100;
  width: 320px;
}

.sidebar-filters {
  width: 100%;
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: var(--spacing-xl);
  height: fit-content;
  max-height: calc(100vh - 2 * var(--spacing-xl) - 2rem);
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
  isolation: isolate;
  border: 1px solid var(--border-color);
  overflow: visible; /* CORRECTION: Permettre le débordement */
}

/* CORRECTION: Nouveau conteneur pour le scroll */
.filters-scroll-container {
  overflow-y: auto;
  overflow-x: visible;
  max-height: calc(100vh - 320px);
  flex-grow: 1;
  scrollbar-width: thin;
  scrollbar-color: #aeb6bf transparent;
  padding-right: 6px;
  position: relative;
}

/* CORRECTION: Conteneur interne pour permettre le débordement des dropdowns */
.filters-inner-content {
  position: relative;
}

.filter-group {
  margin-bottom: 14px;
  border-radius: var(--radius-md);
  background: linear-gradient(90deg,#f8f9fa 60%,#f1f1f5 100%);
  box-shadow: 0 2px 8px rgba(224,78,57,0.03) inset;
  border: 1.5px solid var(--border-color);
  transition: box-shadow 0.2s, border-color 0.2s;
  position: relative;
}

.filter-group.group-open,
.filter-group-header:focus-within,
.filter-group-header:hover {
  border-color: var(--primary-color);
  box-shadow: 0 6px 18px rgba(224,78,57,0.10) inset;
}

.filter-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px 12px 15px;
  cursor: pointer;
  user-select: none;
  background-color: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  font-size: var(--text-sm);
  outline: none;
  transition: background 0.3s, color 0.3s;
  letter-spacing: -0.01em;
}

/* CORRECTION AJOUTÉE : Espace entre l'icône et le titre */
.filter-group-header > i:first-child {
  margin-right: 10px; /* Ajoute un espacement de 10px */
}

.filter-group-header:focus-visible {
  outline: 2.5px solid var(--primary-color);
  background: #fbeeea;
}

.filter-group-header span {
  flex-grow: 1;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.filter-group-chevron {
  transition: transform 0.3s ease;
}

.filter-group-chevron.open {
  transform: rotate(180deg);
}

.filter-group-content {
  max-height: 0;
  overflow: hidden; /* CORRECTION FINALE : Cache le débordement quand fermé */
  transition: max-height 0.5s ease-out, padding 0.5s ease-out;
  padding: 0 18px;
  position: relative;
  background: transparent;
  z-index: 1;
}

.filter-group-content.open {
  max-height: 600px;
  padding: 14px 10px 10px 10px;
  overflow: visible; /* CORRECTION FINALE : Permet le débordement quand ouvert */
}

.filter-item {
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 2px;
}

.filter-item:last-child {
  margin-bottom: 0;
}

.filter-item label {
  display: block;
  margin-bottom: 8px;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.filter-select,
.multi-select-button {
  width: 100%;
  padding: 10px 15px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: #fff;
  font-size: var(--text-sm);
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  height: 42px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  color: var(--text-primary);
  font-family: var(--font-family-primary);
  font-weight: var(--font-weight-normal);
  letter-spacing: -0.01em;
}

.filter-select:focus,
.multi-select-container.open .multi-select-button {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(var(--cr-red-rgb), 0.20);
  z-index: 20;
}

.filter-select:disabled {
  background-color: #f8f9fa !important;
  color: #adb5bd !important;
  cursor: not-allowed !important;
  border-color: #e9ecef !important;
  opacity: 0.7;
}

.multi-select-container {
  position: relative;
  z-index: auto;
}

.multi-select-container.open {
  z-index: 5000; /* Augmente le z-index quand le menu est ouvert */
}

.multi-select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: #fff;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  max-height: 240px;
  overflow-y: auto;
  display: none;
  margin-top: 4px;
  pointer-events: auto;
}

.multi-select-dropdown.show {
  display: block;
}

.multi-select-dropdown ul {
  list-style: none;
  padding: 6px;
  margin: 0;
}

.multi-select-dropdown li {
  padding: 8px 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.multi-select-dropdown li:hover {
  background-color: rgba(var(--cr-red-rgb), 0.07);
}

.multi-select-dropdown li label {
  display: flex;
  align-items: center;
  width: 100%;
  cursor: pointer;
  color: var(--text-primary);
}

.multi-select-dropdown li input[type="checkbox"] {
  margin-right: 10px;
  accent-color: var(--primary-color);
}

.multi-select-dropdown .separator hr {
  border: none;
  border-top: 1px solid #e9ecef;
}

.multi-select-button span {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.multi-select-button i {
  transition: transform 0.2s ease;
}

.multi-select-container.open .multi-select-button i {
  transform: rotate(180deg);
}

/* ====================================================================
   BOUTON DE BASCULEMENT DES FILTRES
   ==================================================================== */
.sidebar-toggle-btn {
  position: absolute;
  top: 25px;
  left: -20px;
  width: 40px;
  height: 40px;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1200;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-toggle-btn:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  transform: scale(1.15);
}

.sidebar-toggle-btn i {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ====================================================================
   ÉTAT RÉDUIT DES FILTRES
   ==================================================================== */
.app-container.filters-collapsed .dashboard-layout {
  grid-template-columns: 1fr 50px;
  gap: 0;
}

.app-container.filters-collapsed .filters-column-wrapper {
  max-width: 50px;
  overflow: visible;
}

.app-container.filters-collapsed .sidebar-filters {
  width: 0;
  opacity: 0;
  visibility: hidden;
  min-width: 0;
  transform: translateX(100%);
  padding: 0;
}

.app-container.filters-collapsed .sidebar-toggle-btn {
  left: 0;
}

.app-container.filters-collapsed .sidebar-toggle-btn i {
  transform: rotate(180deg);
}

/* ====================================================================
   ACTIONS DES FILTRES
   ==================================================================== */
.filter-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding-top: var(--spacing-lg);
  background-color: var(--bg-primary);
  border-top: 1px solid #e5e7eb;
  z-index: 10;
  flex-shrink: 0;
  margin: 0 -1.5rem -1.5rem;
  padding: 1.5rem;
  position: relative;
}

.filter-actions .btn {
  width: 100%;
  justify-content: center;
  height: 48px;
}

#apply-filters.needs-apply {
  background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
  color: white;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

/* ====================================================================
   STATISTIQUES CLÉS
   ==================================================================== */
.stats-section {
  padding: var(--spacing-xl);
  max-width: 1600px;
  margin: 0 auto;
}

.stats-grid-top, .stats-grid-bottom {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.stats-grid-top {
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
  border-radius: 14px;
  padding: var(--spacing-lg);
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.05),
    0 4px 12px rgba(60, 74, 113, 0.08);
  transition: var(--transition);
  max-width: none;
  border: 1px solid rgba(229, 231, 235, 0.6);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 
    0 2px 6px rgba(0, 0, 0, 0.06),
    0 12px 30px rgba(60, 74, 113, 0.12),
    0 0 0 1px rgba(224, 78, 57, 0.08);
  border-color: rgba(224, 78, 57, 0.2);
}

.stat-card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.stat-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.stat-title {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.01em;
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.stat-change {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  margin-top: var(--spacing-md);
  letter-spacing: -0.01em;
}

.stat-change.positive { color: var(--success); }
.stat-change.negative { color: var(--error); }
.stat-change.stable { color: var(--text-muted); }

.stats-grid-top .stat-card:nth-child(4) .stat-icon,
.stat-icon.icon-success { background-color: rgba(40, 167, 69, 0.1); color: #218838; }
.stat-icon.icon-neutral { background-color: rgba(127, 140, 141, 0.1); color: #6c757d; }
.stat-icon.icon-danger { background-color: rgba(220, 53, 69, 0.1); color: #c82333; }
.stat-icon.icon-danger-alt { background-color: rgba(192, 57, 43, 0.1); color: #a93226; }
.stat-icon.icon-warning { background-color: rgba(255, 193, 7, 0.1); color: #e0a800; }
.stat-icon.icon-warning-alt { background-color: rgba(243, 156, 18, 0.1); color: #d35400; }

/* ====================================================================
   ZONE DES GRAPHIQUES (STYLES AMÉLIORÉS)
   ==================================================================== */
.content-area {
  padding: 0 var(--spacing-xl);
  max-width: 1700px;
  margin: 0 auto;
}

.chart-section {
  display: none;
  position: relative;
  min-height: 200px;
}

.chart-section.active {
  display: block;
  animation: fadeInUp 0.6s ease-out;
}

.charts-grid-2-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1600px;
  margin: 0 auto;
}

.chart-card {
  background: linear-gradient(140deg, #ffffff 65%, #f8fafb 100%);
  border-radius: 16px;
  padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.05),
    0 10px 40px rgba(60, 74, 113, 0.06),
    0 2px 8px rgba(224, 78, 57, 0.04);
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 450px;
  max-height: 550px;
  overflow: hidden;
  border: 1px solid rgba(229, 231, 235, 0.6);
  transition:
    box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.3s ease;
  backdrop-filter: blur(10px);
}

.chart-card:hover {
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 20px 60px rgba(60, 74, 113, 0.12),
    0 0 0 1px rgba(var(--cr-red-rgb), 0.15),
    0 4px 16px rgba(224, 78, 57, 0.08);
  transform: translateY(-6px);
  border-color: rgba(var(--cr-red-rgb), 0.3);
  z-index: 2;
}

.chart-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid rgba(var(--cr-red-rgb), 0.35);
  padding-right: 50px;
  line-height: 1.4;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  position: relative;
  background: transparent;
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
}

.chart-container {
  position: relative;
  height: 380px;
  width: 100%;
  flex-grow: 1;
  margin-top: 10px;
  padding-right: 10px;
}

/* Effet de "verre" sur les overlays graphiques */
.chart-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(3px) saturate(1.1);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 20;
  transition: all 0.4s ease;
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 16px rgba(60,74,113,0.13);
}

.chart-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.chart-overlay .overlay-content {
  text-align: center;
  color: var(--text-secondary);
  padding: 25px;
}

.chart-overlay i {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  color: var(--primary-color);
  filter: drop-shadow(0 2px 8px rgba(224,78,57,0.17));
}

.chart-overlay h3 {
  font-size: var(--text-lg);
  border: none;
  padding: 0;
  margin: 0;
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* Modernisation boutons d'export Chart.js */
.export-chart-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--primary-color);
  border: 1px solid rgba(224, 78, 57, 0.15);
  border-radius: 10px;
  width: 36px;
  height: 36px;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  box-shadow: 
    0 2px 6px rgba(0, 0, 0, 0.04),
    0 1px 3px rgba(224, 78, 57, 0.06);
  transition: 
    all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(8px);
}

.export-chart-btn:hover {
  background: var(--primary-color);
  color: #fff;
  box-shadow: 
    0 4px 12px rgba(224, 78, 57, 0.25),
    0 2px 6px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px) scale(1.05);
  border-color: var(--primary-color);
}

/* Amélioration axes et légendes Chart.js (canvas) */
.chart-card canvas {
  border-radius: 12px;
  background: #ffffff;
  box-shadow: none;
  margin-bottom: 0;
  transition: all 0.3s ease;
}

.chart-card:hover canvas {
  box-shadow: none;
}

/* Légende Chart.js (canvas) améliorée */
.chartjs-render-monitor ~ .chartjs-legend {
  margin-top: 12px !important;
  margin-bottom: 0;
  display: flex !important;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 16px 32px;
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
}

.chartjs-legend li {
  margin-right: 16px;
  padding: 4px 10px;
  border-radius: 9px;
  background: rgba(240,242,245,0.63);
  border: 1px solid #ececec;
  box-shadow: 0 1px 2px rgba(60,74,113,0.04);
  transition: background 0.22s;
}

/* Animation sur apparition du graphique */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: translateY(0); }
}

.chart-card, .stat-card {
  will-change: transform;
  animation: fadeInUp 0.55s cubic-bezier(.28,1.1,.32,1.0);
}

/* ====================================================================
   MODALES, LOADER, TOASTS
   ==================================================================== */
#global-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  transition: var(--transition);
}

#global-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.spinner {
  width: 64px;
  height: 64px;
  border: 6px solid var(--border-color);
  border-top: 6px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-xl);
}

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

#toast-container {
  position: fixed;
  top: var(--spacing-2xl);
  right: var(--spacing-2xl);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid;
  min-width: 300px;
  transform: translateX(120%);
  opacity: 0;
  transition: all 0.6s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast-success { border-left-color: var(--success); color: var(--success); }
.toast-error { border-left-color: var(--error); color: var(--error); }
.toast-warning { border-left-color: var(--warning); color: var(--warning); }
.toast-info { border-left-color: var(--info); color: var(--info); }

.toast span {
  flex: 1;
  color: var(--text-primary);
}

.toast-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}

/* ====================================================================
   MODALE DE BIENVENUE (NOTE EXPLICATIVE)
   ==================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(44, 62, 80, 0.7);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 11000; /* CORRECTION: Augmenté à une valeur très élevée */
  opacity: 1;
  transition: opacity 0.3s ease-in-out;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  background: var(--bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 90%;
  max-width: 750px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(1);
  opacity: 1;
  transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

.modal-overlay.hidden .modal-content {
  transform: scale(0.95);
  opacity: 0;
}

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

.modal-header h2 {
  font-size: var(--text-2xl);
  color: var(--primary-color);
  font-weight: var(--font-weight-bold);
}

.close-modal {
  background: none;
  border: none;
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0 var(--spacing-sm);
  transition: color 0.2s ease;
}

.close-modal:hover {
  color: var(--error);
}

.modal-body h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.modal-body p {
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.modal-body ul {
  list-style: none;
  padding-left: 0;
  margin-top: var(--spacing-md);
}

.modal-body ul li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

.modal-body ul i {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-top: 5px;
  flex-shrink: 0;
  width: 25px;
  text-align: center;
}

.modal-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end; /* Aligne le bouton à droite */
}

.modal-continue-btn {
    font-size: var(--text-lg); /* Un peu plus grand pour être visible */
    padding: var(--spacing-sm) var(--spacing-xl);
}

/* ====================================================================
   PORTAL POUR DROPDOWNS (si nécessaire)
   ==================================================================== */
#dropdown-portal {
  position: fixed;
  z-index: 10000;
  pointer-events: none;
}

#dropdown-portal .multi-select-dropdown {
  pointer-events: auto;
}

/* ====================================================================
   RESPONSIVE DESIGN
   ==================================================================== */
@media (min-width: 1400px) {
  .dashboard-layout {
    grid-template-columns: 1fr 380px;
  }
  .filters-column-wrapper {
    width: 380px;
  }
  .app-container.filters-collapsed .dashboard-layout {
    grid-template-columns: 1fr 50px;
  }
  .stats-grid-top, .stats-grid-bottom {
    grid-template-columns: repeat(4, 1fr);
  }
  .charts-grid-2-columns {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 1200px) {
  .main-content {
    margin-left: 0;
  }
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  .filters-column-wrapper {
    width: 100%;
  }
  .sidebar-filters {
    position: static;
    max-height: none;
    order: -1;
    width: 100%;
    margin-bottom: var(--spacing-lg);
  }
  .sidebar-toggle-btn {
    display: none;
  }
  .sidebar {
    transform: translateX(-100%);
    position: fixed;
  }
  .sidebar.show {
    transform: translateX(0);
  }
  .charts-grid-2-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .stats-grid-top, .stats-grid-bottom {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  .stats-grid-top, .stats-grid-bottom {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  .dashboard-layout {
    padding: var(--spacing-md);
  }
  .content-area {
    padding: 0;
  }
  .stats-section {
    padding: var(--spacing-md);
  }
}

@media (max-width: 600px) {
  .chart-card h3 {
    position: sticky;
    top: 0;
    z-index: 3;
    background: #fff;
  }
}

@media (max-width: 800px) {
  .charts-grid-2-columns {
    grid-template-columns: 1fr;
  }
  .chart-card {
    min-height: 280px;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg) var(--spacing-md);
  }
  .chart-container {
    height: 210px;
  }
}

@media (max-width: 540px) {
  .stats-grid-top, .stats-grid-bottom {
    grid-template-columns: 1fr;
  }
  .chart-card {
    min-height: 180px;
  }
  .chart-container {
    height: 140px;
  }
  .chart-card h3 {
    font-size: var(--text-base);
  }
}

/* ====================================================================
   ACCESSIBILITÉ ET OPTIMISATIONS
   ==================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    transition: none !important;
    animation: none !important;
  }
}

.chart-card, .stat-card {
  will-change: transform;
}

:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 3px;
  border-radius: 4px;
}