.app-header {
  display: flex;
  align-items: center;
  background-color: var(--color-flat-white);
  height: 60px;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
  box-shadow: 
      0 2px 4px rgba(0, 0, 0, 0.05),
      0 4px 6px rgba(0, 0, 0, 0.08);
}

.header-brand {
  flex: 0 0 auto;
}

.brand-logo {
  height: 50px;
  width: auto;
}

.header-nav {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-left: 2rem;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-link {
  color: #666;
  padding: 0.5rem;
  border-radius: 4px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: #f8f9fa;
  color: #333;
}

.user-menu-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem;
  border: none;
  background: none;
  color: #666;
  border-radius: 4px;
  transition: all 0.2s;
}

.user-menu-btn:hover {
  background: #f8f9fa;
}

.user-email {
  font-size: 0.875rem;
}

.dropdown-menu {
  margin-top: 0.5rem;
  padding: 0.5rem;
  border: none;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
  border-radius: 6px;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: #666;
  border-radius: 4px;
}

.dropdown-item:hover {
  background: #f8f9fa;
  color: #333;
}

.user-menu-btn > i,
.nav-link > i {
  color: var(--color-mocha);
}