.back-to-top {
  display: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background-color: #049147; /* primary blue */
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  z-index: 1000;
  cursor: pointer;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.3s, transform 0.3s, background-color 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top:hover {
  background-color: #000000;
}

.back-to-top.show {
  opacity: 1;
  transform: scale(1);
}

.back-to-top__icon {
  width: 22px;
  height: 22px;
  fill: #fff;
  pointer-events: none;
  transition: transform 0.3s;
}

.back-to-top:hover .back-to-top__icon {
  transform: translateY(-3px);
}