#back-to-top {
  position: fixed !important;
  bottom: 30px !important;
  right: 30px !important;
  width: 44px !important;
  height: 44px !important;
  background: #003263 !important;
  color: white !important;
  border: none !important;
  border-radius: 50% !important;
  font-size: 22px !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, background 0.2s ease;
  z-index: 999999 !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
  line-height: 1 !important;
  padding: 0 !important;
  margin: 0 !important;
}

#back-to-top.visible {
  opacity: 1 !important;
  visibility: visible !important;
}

#back-to-top:hover {
  background: #00072d !important;
}