/* static/css/main.css - VERSION OPTIMISÉE PERFORMANCES GPU */

:root {
  /* Palette de couleurs principale */
  --primary-color: #6264A7;
  --primary-color-dark: #4F5199;
  --primary-color-light: #7B7DC6;
  --primary-color-very-light: rgba(98, 100, 167, 0.3);

  /* Couleurs sémantiques */
  --success-color: #28a745;
  --success-color-dark: #218838;
  --success-color-light: #48c864;
  --warning-color: #ffc107;
  --warning-color-dark: #e0a800;
  --danger-color: #dc3545;
  --danger-color-dark: #c82333;
  --light-color: #f8f9fa;
  --dark-color: #212529;

  /* Couleurs d'interface - OPTIMISÉES POUR PERFORMANCES */
  --bg-darkest: rgba(35, 35, 40, 0.85);  /* Plus opaque pour réduire le blend */
  --bg-dark: rgba(45, 45, 50, 0.85);     /* Plus opaque */
  --bg-medium: rgba(55, 55, 60, 0.85);   /* Plus opaque */
  --bg-light: rgba(255, 255, 255, 0.15);
  --bg-overlay: rgba(0, 0, 0, 0.25);

  /* Couleurs de texte */
  --text-primary: #ffffff;
  --text-secondary: #f0f0f0;
  --text-muted: #cccccc;

  /* Ombres - OPTIMISÉES */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.15);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.35);

  /* Espacements */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;

  /* Bordures */
  --border-radius-xs: 3px;
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 15px;
  --border-radius-xl: 20px;
  --border-radius-full: 50%;

  /* Transitions - OPTIMISÉES */
  --transition-fast: all 0.15s ease;      /* Plus rapide */
  --transition-normal: all 0.2s ease;     /* Plus rapide */
  --transition-slow: all 0.3s ease;       /* Plus rapide */

  /* Z-index layers */
  --z-index-base: 1;
  --z-index-above: 10;
  --z-index-controls: 50;
  --z-index-rooms: 100;
  --z-index-menu: 600;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popup: 1060;
  --z-index-overlay: 1000;

  /* Typographie */
  --font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;

  /* OPTIMISATIONS BLUR - Adaptatif selon performance */
  --blur-intensity: 3px;        /* RÉDUIT de 8px à 3px */
  --blur-intensity-light: 2px;  /* Version allégée */
  --blur-intensity-heavy: 4px;  /* Version pour appareils performants */

  /* Couleurs spécifiques pour les badges de statut */
  --status-current-bg: rgba(40, 167, 69, 0.25);
  --status-current-border: var(--success-color);
  --status-upcoming-bg: rgba(255, 193, 7, 0.2);
  --status-upcoming-border: var(--warning-color);
  --status-past-bg: rgba(108, 117, 125, 0.2);
  --status-past-border: #6c757d;
}

/* Reset et styles généraux */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-family);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: transparent !important;
}

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

/* OPTIMISATION MAJEURE : Arrière-plan avec GPU optimisé */
#background-container {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  z-index: -1 !important;
  background-size: cover !important;
  background-position: center center !important;
  background-repeat: no-repeat !important;
  
  /* OPTIMISATIONS GPU CRITIQUES */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
  backface-visibility: hidden !important;
  perspective: 1000px !important;
  
  /* Animation BEAUCOUP plus légère */
  animation: zoomBackgroundOptimized 90s infinite alternate ease-in-out !important;
  
  /* Filtre très réduit */
  filter: brightness(1.0) contrast(1.02) !important;
  opacity: 1 !important;
  transition: background-image 1s ease-in-out !important;
}

/* ANIMATION ULTRA-OPTIMISÉE */
@keyframes zoomBackgroundOptimized {
  0% { 
    transform: translate3d(0, 0, 0) scale3d(1, 1, 1) !important;
    filter: brightness(1.0) contrast(1.02) !important;
  }
  100% { 
    transform: translate3d(0, 0, 0) scale3d(1.015, 1.015, 1) !important; /* 1.015 au lieu de 1.05 */
    filter: brightness(1.02) contrast(1.04) !important;
  }
}

/* Overlay arrière-plan ULTRA-OPTIMISÉ */
#background-container::after {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  background: linear-gradient(135deg, rgba(0,0,0,0.06) 0%, rgba(0,0,0,0.03) 100%) !important;
  z-index: 0 !important;
  will-change: auto !important;
}

.background-loaded {
  /* Animation d'apparition douce */
}

/* Layout Principal - OPTIMISÉ */
.main-container {
  background-color: transparent !important;
  height: 100vh;
  display: grid;
  /* Isolation pour les performances */
  contain: layout style paint !important;
  will-change: auto !important;
}

/* Typographie de base */
h1, h2, h3, h4, h5, h6 { 
  margin-top: 0; 
  line-height: 1.2; 
  color: var(--text-primary); 
  font-weight: 600;
}
h1 { font-size: var(--font-size-xxl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
p { margin-top: 0; margin-bottom: var(--spacing-md); }
a { 
  color: var(--primary-color-light); 
  text-decoration: none; 
  transition: var(--transition-fast); 
}
a:hover { 
  color: var(--primary-color); 
  text-decoration: underline; 
}

/* Styles communs pour les boutons - OPTIMISÉS */
button, .btn {
  cursor: pointer;
  border: none;
  font-family: var(--font-family);
  font-weight: 500;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  background: var(--bg-medium);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-sm);
  font-size: var(--font-size-md);
  
  /* Optimisations GPU pour boutons */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
}

button:hover, .btn:hover { 
  transform: translate3d(0, -2px, 0) !important;
  box-shadow: var(--shadow-md); 
  background: rgba(70, 70, 70, 0.7); 
}

button:focus, .btn:focus { 
  outline: none; 
  box-shadow: 0 0 0 3px var(--primary-color-very-light); 
}

button:disabled, .btn:disabled { 
  opacity: 0.5; 
  cursor: not-allowed; 
  transform: translate3d(0, 0, 0) !important; 
  box-shadow: none; 
  background: rgba(80, 80, 80, 0.5); 
}

/* Variantes de boutons */
.btn-primary { 
  background: linear-gradient(to right, var(--primary-color), var(--primary-color-light)); 
  border: none;
}
.btn-primary:hover { 
  background: linear-gradient(to right, var(--primary-color-dark), var(--primary-color)); 
}

.btn-success { 
  background: linear-gradient(to right, var(--success-color), var(--success-color-light)); 
  border: none;
}
.btn-success:hover { 
  background: linear-gradient(to right, var(--success-color-dark), var(--success-color)); 
}

.btn-danger { 
  background: linear-gradient(to right, var(--danger-color), var(--danger-color-light)); 
  border: none;
}
.btn-danger:hover { 
  background: linear-gradient(to right, var(--danger-color-dark), var(--danger-color)); 
}

.btn-ghost { 
  background: transparent; 
  border: 1px solid rgba(255, 255, 255, 0.25); 
}
.btn-ghost:hover { 
  background: rgba(255, 255, 255, 0.1); 
}

/* Elements de formulaire communs */
input, select, textarea {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  color: var(--dark-color);
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: white;
  transition: var(--transition-fast);
}

input:focus, select:focus, textarea:focus { 
  outline: none; 
  border-color: var(--primary-color); 
  box-shadow: 0 0 0 3px var(--primary-color-very-light); 
}

input::placeholder, textarea::placeholder { 
  color: #aaa; 
}

/* Classes utilitaires */
.text-center { text-align: center; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* CONTENEURS AVEC GLASSMORPHISM OPTIMISÉ */
.glass-container, 
.glass-container-light {
  backdrop-filter: blur(var(--blur-intensity-light)) !important;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-md);
  
  /* Optimisations GPU */
  will-change: auto !important;
  transform: translate3d(0, 0, 0) !important;
}

.glass-container { 
  background: var(--bg-dark); 
}

.glass-container-light { 
  background: var(--bg-light); 
  border-color: rgba(255, 255, 255, 0.15); 
}

/* HEADER OPTIMISÉ */
.header {
  background-color: rgba(35, 35, 35, 0.85) !important;
  backdrop-filter: blur(var(--blur-intensity)) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  
  /* Optimisations GPU */
  will-change: auto !important;
  transform: translate3d(0, 0, 0) !important;
}

/* SIDE MENU OPTIMISÉ */
.side-menu {
  background-color: rgba(30, 30, 30, 0.85) !important;
  backdrop-filter: blur(var(--blur-intensity)) !important;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  z-index: var(--z-index-menu);
  
  /* Optimisations GPU */
  will-change: transform !important; /* Seulement si animation prévue */
  transform: translate3d(0, 0, 0) !important;
}

/* Indicateur de chargement - OPTIMISÉ */
.loading-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
  text-align: center;
  min-height: 150px;
}

.loading-indicator i {
  font-size: 2.2rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
  animation: spin 1.5s infinite linear;
}

.loading-indicator span {
  font-size: 1rem;
  font-weight: 500;
}

.loading-indicator .loading-detail {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
}

/* Animation optimisée */
@keyframes spin {
  0% { transform: rotate3d(0, 0, 1, 0deg) !important; }
  100% { transform: rotate3d(0, 0, 1, 360deg) !important; }
}

/* Message "Aucune réunion" */
.empty-meetings-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--text-muted);
  text-align: center;
  min-height: 150px;
}

.empty-meetings-message i {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.6;
}

.empty-meetings-message p {
  font-size: 1rem;
  margin-bottom: 0;
}

.empty-meetings-message.error p {
  color: var(--danger-color);
}

.empty-meetings-message.error i {
  color: var(--danger-color);
}

.empty-meetings-message .error-detail {
  font-size: 0.8rem;
  opacity: 0.8;
  margin-top: 5px;
}

.empty-meetings-message button {
  margin-top: var(--spacing-lg);
}

/* PANNEAU DES RÉUNIONS OPTIMISÉ */
.meetings-container {
  background-color: rgba(40, 40, 40, 0.85) !important;
  backdrop-filter: blur(var(--blur-intensity)) !important;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-md);
  margin: 5px 10px;
  display: flex;
  flex-direction: column;
  grid-area: meetings;
  
  /* Optimisations GPU */
  will-change: auto !important;
  transform: translate3d(0, 0, 0) !important;
}

.meetings-title-bar {
  background: rgba(50, 50, 50, 0.85) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.meetings-title-bar h2 {
  font-size: 1rem;
  margin: 0;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.meetings {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.meetings-list {
  flex-grow: 1;
  overflow-y: auto;
  padding: var(--spacing-sm) var(--spacing-md);
  
  /* Optimisation scrollbar */
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
}

.meetings-list::-webkit-scrollbar {
  width: 5px;
}

.meetings-list::-webkit-scrollbar-track {
  background: transparent;
}

.meetings-list::-webkit-scrollbar-thumb {
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 10px;
}

.meetings-list::-webkit-scrollbar-thumb:hover {
  background-color: rgba(255, 255, 255, 0.5);
}

/* ITEMS DE RÉUNION OPTIMISÉS */
.meeting-item {
  background-color: rgba(55, 55, 55, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  
  /* Optimisations GPU */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
}

.meeting-item:hover {
  background-color: rgba(65, 65, 65, 0.9);
  transform: translate3d(0, -2px, 0) !important;
  box-shadow: var(--shadow-sm);
}

/* Barre latérale de statut */
.meeting-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background-color: var(--status-past-border);
  opacity: 0.8;
  transition: background-color 0.3s ease;
}

.meeting-item.current::before {
  background-color: var(--status-current-border);
}

.meeting-item.upcoming::before {
  background-color: var(--status-upcoming-border);
}

.meeting-item.past {
  opacity: 0.7;
}

.meeting-item.past h3 {
  text-decoration: line-through;
  color: var(--text-muted);
}

.meeting-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-sm);
}

.meeting-item h3 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-primary);
  flex-grow: 1;
  padding-right: 10px;
}

/* Bouton rejoindre OPTIMISÉ */
.meeting-join-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 5px 12px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
  
  /* Optimisation GPU */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
}

.meeting-join-btn:hover {
  background: var(--primary-color-dark);
  transform: translate3d(0, -1px, 0) !important;
}

.meeting-join-btn i {
  margin-right: 5px;
}

.meeting-item.past .meeting-join-btn {
  display: none;
}

/* Badges de statut */
.meeting-status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 15px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  border: 1px solid transparent;
}

.current-badge {
  background-color: var(--status-current-bg);
  border-color: var(--status-current-border);
  color: var(--status-current-border);
}

.upcoming-badge {
  background-color: var(--status-upcoming-bg);
  border-color: var(--status-upcoming-border);
  color: var(--status-upcoming-border);
}

.past-badge {
  background-color: var(--status-past-bg);
  border-color: var(--status-past-border);
  color: var(--status-past-border);
}

.upcoming-badge i, .past-badge i {
  margin-right: 4px;
  font-size: 0.9em;
}

/* Zone de progression (pour 'current') */
.meeting-status-indicator {
  margin-bottom: var(--spacing-sm);
}

.meeting-progress-container {
  height: 6px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin: 5px 0;
}

.meeting-progress-bar {
  height: 100%;
  background-color: var(--status-current-border);
  border-radius: 3px;
  transition: width 0.5s ease-out;
}

.time-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 5px;
}

.time-remaining i {
  margin-right: 4px;
}

.time-remaining.ending {
  color: var(--warning-color);
  font-weight: 500;
}

/* Détails (heure, salle, participants) */
.meeting-details {
  margin-top: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.meeting-details p {
  margin: 3px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.meeting-details p i {
  color: var(--text-muted);
  width: 15px;
  text-align: center;
}

.meeting-participants {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
}

/* Bouton voir plus participants */
.show-more-participants {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 12px;
  color: #ddd;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  margin-left: 8px;
  transition: background-color 0.2s;
  vertical-align: middle;
}

.show-more-participants:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Section des statuts (En cours, A venir...) */
.status-section h4 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-section:first-child h4 {
  margin-top: 0;
}

/* Zone de saisie ID Réunion (dans panneau meetings) */
.meeting-id-entry {
  background-color: rgba(30, 30, 30, 0.85);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md);
  margin: 0;
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

/* SECTION DES SALLES OPTIMISÉE */
.rooms-section {
  display: none;
  position: fixed;
  bottom: 65px;
  left: var(--spacing-lg);
  z-index: var(--z-index-rooms);
  background: rgba(35, 35, 35, 0.9);
  backdrop-filter: blur(var(--blur-intensity));
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  width: auto;
  max-width: calc(100vw - 2 * var(--spacing-lg));
  transition: opacity 0.3s ease, transform 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.12);
  opacity: 0;
  transform: translateY(10px);
}

.rooms-section.visible {
  opacity: 1;
  transform: translateY(0);
  display: block !important;
}

.rooms-container {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 5px 0;
}

.rooms {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--spacing-sm);
  justify-content: flex-start;
  padding-bottom: 5px;
}

/* CARTES DE SALLES OPTIMISÉES */
.room-card {
  flex: 0 0 110px;
  height: 65px;
  background: rgba(50, 50, 50, 0.85);
  border-radius: var(--border-radius-sm);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition-fast);
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  border: 1px solid rgba(255, 255, 255, 0.1);
  
  /* Optimisations GPU */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
}

.room-card:hover {
  transform: translate3d(0, -2px, 0) scale3d(1.03, 1.03, 1) !important;
  box-shadow: var(--shadow-sm);
  border-color: var(--primary-color-light);
}

.room-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
}

.room-card.available::before {
  background-color: var(--success-color);
}

.room-card.occupied::before {
  background-color: var(--danger-color);
}

.room-card.soon::before {
  background-color: var(--warning-color);
}

.room-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 3px;
  color: var(--text-primary);
  text-align: center;
}

.room-status {
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
}

.status-icon {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}

.status-icon.available {
  background-color: var(--success-color);
  box-shadow: 0 0 4px var(--success-color);
}

.status-icon.occupied {
  background-color: var(--danger-color);
  box-shadow: 0 0 4px var(--danger-color);
  animation: pulseStatus 2s infinite;
}

.status-icon.soon {
  background-color: var(--warning-color);
  box-shadow: 0 0 4px var(--warning-color);
}

.room-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 3px;
}

@keyframes pulseStatus {
  0% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.3); }
  70% { box-shadow: 0 0 0 4px rgba(220, 53, 69, 0); }
  100% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0); }
}

/* Bouton flottant Salles (Mobile) */
.rooms-toggle-button-floating {
  position: fixed;
  bottom: var(--spacing-lg);
  left: var(--spacing-lg);
  background: linear-gradient(to right, var(--primary-color), var(--primary-color-light));
  border: none;
  border-radius: var(--border-radius-full);
  color: white;
  width: 45px;
  height: 45px;
  padding: 0;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-index-rooms);
  box-shadow: var(--shadow-md);
  transition: var(--transition-fast);
  
  /* Optimisation GPU */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
}

.rooms-toggle-button-floating .fa-door-open {
  margin: 0;
}

.rooms-toggle-button-floating span {
  display: none;
}

.rooms-toggle-button-floating:hover {
  background: linear-gradient(to right, var(--primary-color-dark), var(--primary-color));
  transform: translate3d(0, -2px, 0) scale3d(1.05, 1.05, 1) !important;
  box-shadow: var(--shadow-lg);
}

/* BARRE DE CONTRÔLE OPTIMISÉE */
.controls-container {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(30, 30, 30, 0.85) !important;
  backdrop-filter: blur(var(--blur-intensity)) !important;
  padding: var(--spacing-xs) var(--spacing-md) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-index-controls);
  height: 50px;
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  margin: 0 10px;
  width: calc(100% - 20px);
  grid-area: controls;
  
  /* Optimisations GPU */
  will-change: auto !important;
  transform: translate3d(0, 0, 0) !important;
}

.control-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

/* Boutons compacts OPTIMISÉS */
.compact-btn {
  padding: 6px 10px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-sm);
  background: rgba(65, 65, 65, 0.75);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  box-shadow: none;
  transition: var(--transition-fast);
  min-width: 40px;
  height: 36px;
  
  /* Optimisations GPU */
  will-change: transform !important;
  transform: translate3d(0, 0, 0) !important;
}

.compact-btn i {
  font-size: 1rem;
  margin: 0;
}

.compact-btn:hover {
  background: rgba(85, 85, 85, 0.85);
  color: var(--text-primary);
  transform: translate3d(0, -1px, 0) !important;
  border-color: rgba(255, 255, 255, 0.15);
}

.compact-btn:active {
  transform: translate3d(0, 0, 0) !important;
  background: rgba(55, 55, 55, 0.8);
}

/* MODALS OPTIMISÉS */
.booking-modal {
  z-index: var(--z-index-modal);
}

.booking-modal-content {
  background-color: rgba(35, 35, 35, 0.95) !important;
  backdrop-filter: blur(calc(var(--blur-intensity) - 1px));
  border: 1px solid rgba(255, 255, 255, 0.15);
  max-width: 600px !important;
  max-height: 90vh !important;
  overflow-y: auto !important;
  border-radius: var(--border-radius-lg);
}

.booking-modal-header {
  background: linear-gradient(to right, rgba(98, 100, 167, 0.8), rgba(75, 76, 126, 0.8)) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.booking-modal-footer {
  background: rgba(40, 40, 40, 0.9) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* Modal Connexion */
.auth-modal {
  z-index: var(--z-index-modal);
}

.auth-modal-content {
  background-color: rgba(40, 40, 40, 0.95) !important;
  backdrop-filter: blur(calc(var(--blur-intensity) - 1px));
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-lg);
}

/* NOTIFICATIONS OPTIMISÉES */
#notificationContainer {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-index-popup);
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 400px;
}

.notification {
  background-color: var(--bg-medium);
  color: var(--text-primary);
  padding: 12px 18px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.3s ease, transform 0.3s ease;
  min-width: 250px;
  border-left: 4px solid #17a2b8;
  
  /* Optimisation GPU */
  will-change: transform, opacity !important;
  transform: translate3d(100%, 0, 0) !important;
}

.notification-success {
  border-left-color: var(--success-color);
}

.notification-warning {
  border-left-color: var(--warning-color);
}

.notification-error {
  border-left-color: var(--danger-color);
}

.notification.show {
  opacity: 1;
  transform: translate3d(0, 0, 0) !important;
}

.notification i:first-child {
  font-size: 1.2em;
  margin-top: 2px;
  flex-shrink: 0;
}

.notification span {
  flex-grow: 1;
  line-height: 1.4;
}

.notification-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.1em;
  cursor: pointer;
  padding: 0 5px;
  margin-left: 10px;
  opacity: 0.7;
  flex-shrink: 0;
}

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

/* Popup Participants */
.participants-popup {
  position: fixed;
  z-index: var(--z-index-popup) !important;
  background: #333;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.5);
  width: 300px;
  max-height: 400px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
  display: none;
  color: #eee;
}

.participants-popup-content {
  display: flex;
  flex-direction: column;
  max-height: 400px;
}

.participants-popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  background: #444;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.participants-popup-header h4 {
  margin: 0;
  font-size: 1rem;
  color: white;
}

.close-participants {
  background: none;
  border: none;
  color: #ccc;
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 0 5px;
}

.close-participants:hover {
  color: white;
}

.participants-list {
  padding: 5px 0;
  overflow-y: auto;
  flex-grow: 1;
}

.participant-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.participant-item i {
  color: #aaa;
}

/* OPTIMISATIONS POUR PERFORMANCES RÉDUITES */

/* Mode performance automatique sur appareils faibles */
@media (max-width: 768px), (prefers-reduced-motion: reduce) {
  #background-container {
    animation: none !important;
    transform: translate3d(0, 0, 0) scale3d(1, 1, 1) !important;
    filter: brightness(1.0) contrast(1.0) !important;
  }
  
  .glass-container,
  .glass-container-light,
  .header,
  .side-menu,
  .meetings-container,
  .controls-container {
    backdrop-filter: none !important;
    background-color: rgba(40, 40, 40, 0.95) !important;
  }
  
  .meeting-item:hover,
  .room-card:hover,
  .compact-btn:hover,
  .meeting-join-btn:hover {
    transform: translate3d(0, 0, 0) !important;
  }
}

/* Désactivation des hovers coûteux sur tactile */
@media (hover: none) {
  .meeting-item:hover,
  .room-card:hover,
  .menu-item:hover,
  .compact-btn:hover {
    transform: none !important;
    box-shadow: none !important;
  }
}

/* Fallback pour navigateurs sans backdrop-filter */
@supports not (backdrop-filter: blur(1px)) {
  .glass-container,
  .glass-container-light,
  .header,
  .side-menu,
  .meetings-container,
  .controls-container {
    backdrop-filter: none !important;
    background-color: rgba(40, 40, 40, 0.95) !important;
  }
}

/* CLASSES POUR OPTIMISATIONS AUTOMATIQUES */

/* Classe ajoutée automatiquement par PerformanceOptimizer */
.perf-low-end *,
.perf-reduced-motion * {
  transition-duration: 0.1s !important;
  animation-duration: 0.1s !important;
}

.perf-reduced-motion * {
  animation: none !important;
  transition: none !important;
}

.perf-no-advanced-effects .header,
.perf-no-advanced-effects .side-menu,
.perf-no-advanced-effects .meetings-container,
.perf-no-advanced-effects .controls-container,
.perf-no-advanced-effects .glass-container,
.perf-no-advanced-effects .glass-container-light {
  backdrop-filter: none !important;
  background-color: rgba(40, 40, 40, 0.95) !important;
}

.perf-no-advanced-effects .auth-modal,
.perf-no-advanced-effects .booking-modal {
  backdrop-filter: none !important;
  background-color: rgba(0, 0, 0, 0.8) !important;
}

/* Mode urgence - optimisations maximales */
.perf-emergency #background-container {
  animation: none !important;
  transform: none !important;
  filter: none !important;
}

.perf-emergency * {
  backdrop-filter: none !important;
  filter: none !important;
  box-shadow: none !important;
  transition: none !important;
  animation: none !important;
  will-change: auto !important;
}

.perf-emergency .meetings-container,
.perf-emergency .header,
.perf-emergency .side-menu,
.perf-emergency .controls-container {
  background-color: rgba(40, 40, 40, 0.95) !important;
}

/* STYLES POUR L'IMPRESSION */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  
  #background-container,
  .header,
  .side-menu,
  .controls-container,
  .rooms-section,
  .rooms-toggle-button-floating,
  .auth-modal,
  .booking-modal,
  .notificationContainer,
  .participants-popup {
    display: none !important;
  }
  
  .noprint,
  .meeting-join-btn,
  .show-more-participants,
  .refresh-meetings-btn,
  .meeting-id-entry {
    display: none !important;
  }
  
  .main-container {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: auto auto !important;
    grid-template-areas: "content" "meetings" !important;
    padding: 0 !important;
  }
  
  .content {
    padding: 0;
    grid-area: content !important;
  }
  
  .meetings-container {
    width: 100% !important;
    margin: 20px 0 0 0 !important;
    box-shadow: none !important;
    background: white !important;
    backdrop-filter: none !important;
    border: 1px solid #ccc !important;
    grid-area: meetings !important;
    position: static !important;
    border-radius: 0 !important;
  }
  
  .meetings-title-bar {
    background: #eee !important;
    color: black !important;
    padding: 10px !important;
    border-bottom: 1px solid #ccc !important;
    border-radius: 0 !important;
  }
  
  .meetings-title-bar h2 {
    color: black !important;
  }
  
  .meetings {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }
  
  .meetings-list {
    color: black !important;
    padding: 10px !important;
  }
  
  .meeting-item {
    background: #f9f9f9 !important;
    color: black !important;
    box-shadow: none !important;
    border: 1px solid #ddd !important;
    margin-bottom: 10px !important;
    page-break-inside: avoid !important;
    padding: 10px !important;
    opacity: 1 !important;
  }
  
  .meeting-item::before {
    display: none !important;
  }
  
  .meeting-item h3,
  .meeting-item p,
  .meeting-item span,
  .meeting-item i {
    color: black !important;
    text-decoration: none !important;
  }
  
  .meeting-item .meeting-time i,
  .meeting-item .meeting-salle i,
  .meeting-item .meeting-participants i {
    color: #555 !important;
  }
  
  .meeting-status-badge,
  .meeting-progress-container,
  .time-info {
    display: none !important;
  }
}

/* Adaptations responsives finales */
@media (max-width: 992px) {
  .rooms-section {
    max-width: calc(100vw - 2 * var(--spacing-md));
    left: var(--spacing-md);
  }
  
  .header .datetime p:first-child {
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  .room-card {
    flex: 0 0 100px;
    height: 60px;
  }
  
  .room-name {
    font-size: 0.85rem;
  }
  
  .room-status, .room-time {
    font-size: 0.7rem;
  }

  .controls-container {
    height: 45px;
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    margin: 0 5px;
    width: calc(100% - 10px);
  }
  
  .compact-btn {
    min-width: 36px;
    height: 32px;
    padding: 4px 8px;
  }
  
  .compact-btn i {
    font-size: 0.9rem;
  }
  
  .control-buttons {
    gap: var(--spacing-xs);
  }

  .rooms-toggle-button-floating {
    bottom: 60px;
    left: var(--spacing-md);
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .rooms-section {
    bottom: 110px;
  }

  .meetings-title-bar h2 {
    font-size: 0.9rem;
  }
  
  .meetings-title-bar .create-meeting-integrated {
    padding: 6px 10px;
    font-size: 0.8rem;
  }
  
  .meeting-item h3 {
    font-size: 1rem;
  }
  
  .meeting-details p {
    font-size: 0.85rem;
  }
}

@media (max-width: 576px) {
  .header .datetime {
    display: none;
  }
  
  .header .title-container {
    justify-content: flex-start;
    margin-left: 50px;
  }
  
  .header .title {
    font-size: 1rem;
    padding: 6px 12px;
  }
  
  .user-profile {
    margin-right: 10px;
  }

  .controls-container {
    height: 45px;
  }
  
  .compact-btn {
    min-width: 32px;
    padding: 4px;
  }
  
  .control-buttons {
    justify-content: space-around;
    width: 100%;
  }

  .booking-modal-content,
  .auth-modal-content {
    max-width: 95vw !important;
    margin: auto;
  }
  
  .meetings-container {
    margin: 5px;
  }
  
  .meetings-list {
    padding: var(--spacing-sm);
  }
  
  .meeting-id-entry input,
  .meeting-id-entry button {
    font-size: 0.9rem;
    padding: 6px 10px;
  }
}