.custom-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: linear-gradient(90deg, #3b82f6, #1e3a8a);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
}


.logo-section {
  display: flex;
  align-items: center;
}

.logo {
  height: 40px;
  width: 40px;
  margin-right: 0.75rem;
  border-radius: 8px;
  background-color: white;
  padding: 3px;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

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

.username {
  font-weight: 500;
  margin-right: 1rem;
  color: #e0f2fe;
}

.nav-btn {
  padding: 0.5rem 1rem;
  background-color: white;
  color: #1e3a8a;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
  text-decoration: none;
}

.nav-btn:hover {
  background-color: #e0f2fe;
  transform: scale(1.05);
}

.logout-btn {
  background-color: #ef4444;
  color: white;
}

.logout-btn:hover {
  background-color: #dc2626;
}