/**
 * header.css - Styles pour l'en-tête de l'application
 * Définit la structure et l'apparence de la barre de navigation principale
 */

/* Structure de base de l'en-tête */
.header {
  background-color: var(--card-bg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo et titre */
.header-brand {
  display: flex;
  align-items: center;
}

.header-logo {
  height: 32px;
  margin-right: var(--spacing-sm);
}

.header-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  margin: 0;
}

/* Navigation principale */
.header-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0 var(--spacing-md);
}

.nav-link {
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
}

/* Effet de soulignement pour les liens actifs */
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
}

/* Actions utilisateur */
.header-actions {
  display: flex;
  align-items: center;
}

.header-action-item {
  margin-left: var(--spacing-md);
}

/* Menu utilisateur */
.user-menu {
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-weight-bold);
  margin-right: var(--spacing-sm);
}

.user-name {
  font-weight: var(--font-weight-semibold);
  margin-right: var(--spacing-xs);
}

.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-sm);
  background-color: var(--card-bg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  z-index: 10;
  overflow: hidden;
  display: none;
}

.user-menu:hover .user-dropdown,
.user-dropdown.show {
  display: block;
  animation: fadeIn 0.2s ease forwards;
}

.user-dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

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

.user-dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: var(--spacing-xs) 0;
}

/* Barre de recherche */
.header-search {
  position: relative;
  margin-right: var(--spacing-md);
}

.search-input {
  padding: var(--spacing-xs) var(--spacing-md);
  padding-left: calc(var(--spacing-md) + 20px);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background-color: var(--background);
  transition: all var(--transition-fast);
  width: 200px;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-light);
  background-color: white;
  width: 250px;
}

.search-icon {
  position: absolute;
  left: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

/* Notifications */
.notification-badge {
  position: relative;
}

.notification-indicator {
  position: absolute;
  top: -5px;
  right: -5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--danger);
  border: 2px solid white;
}

/* Bouton menu mobile */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  cursor: pointer;
  padding: var(--spacing-xs);
}

/* Adaptations pour le mode mobile */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card-bg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
  }
  
  .header-nav.show {
    display: block;
  }
  
  .nav-list {
    flex-direction: column;
  }
  
  .nav-item {
    margin: var(--spacing-xs) 0;
  }
  
  .header-search {
    display: none;
  }
}