.navigation {
  background: white;
  padding: 1rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #eee;
  height: 72px;
  box-sizing: border-box;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
}

.nav-brand {
  font-size: 1.4rem;
  font-weight: bold;
}

.nav-brand a {
  text-decoration: none;
  color: #333;
}

.nav-user {
  position: relative;
}

.user-menu {
  position: relative;
}

.user-button {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  color: #666;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.arrow {
  font-size: 0.8rem;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border: 1px solid #eee;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  min-width: 150px;
  display: none;
  z-index: 100;
}

.user-menu:hover .dropdown-menu {
  display: flex;
  flex-direction: column;
}

.dropdown-menu a,
.dropdown-menu button {
  padding: 0.75rem 1rem;
  text-decoration: none;
  color: #666;
  border: none;
  background: none;
  text-align: left;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.dropdown-menu a:hover,
.dropdown-menu button:hover {
  background: #f8f9fa;
}

.nav-auth {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav-auth button {
  border: none;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.2s;
}

.login-btn {
  background: none;
  color: #666;
}

.login-btn:hover {
  background: #f5f5f5;
}

.signup-btn {
  background: var(--primary-color, #2196f3);
  color: white;
}

.signup-btn:hover {
  opacity: 0.9;
}

.nav-loading {
  color: #666;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .navigation {
    padding: 1rem 2rem;
  }
}

.nav-links {
  display: flex;
  gap: 1rem;
  margin-right: auto;
  margin-left: 2rem;
}

.nav-link {
  text-decoration: none;
  color: #666;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: #f5f5f5;
}

.nav-link.active {
  color: var(--primary-color, #2196f3);
  background: rgba(33, 150, 243, 0.1);
}