.scrollToTopBtn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--color-secondary);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  transition: all 0.3s ease;
  animation: fadeIn 0.3s;
}

.scrollToTopBtn:hover {
  background-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .scrollToTopBtn {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 1.2rem;
  }
}
