.scroll-to-top-btn {
  position: fixed;
  bottom: 20px;
  right: 110px; /* Изменено: теперь кнопка отстоит на 110px от правого края */
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--red);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.scroll-to-top-btn:hover {
  background-color: var(--red);
  transform: translateY(-2px);
}

.scroll-to-top-btn.show {
  opacity: 1;
  visibility: visible;
}