/* Back to top - jobb alsó sarok, animált */
#back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9997;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #80a640 0%, #6d8f36 100%);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(128, 166, 64, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.2s;
}
#back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
#back-to-top:hover {
  background: linear-gradient(135deg, #6d8f36 0%, #5a7530 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(128, 166, 64, 0.5);
}
#back-to-top:active {
  transform: translateY(0);
}
#back-to-top svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}
@media (max-width: 767px) {
  #back-to-top {
    width: 44px;
    height: 44px;
    bottom: 20px;
    right: 20px;
  }
  #back-to-top svg {
    width: 20px;
    height: 20px;
  }
}