#goToTopBtn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  padding: 40px;
  background: #fbbf24;
  color: #232526;
  border: none;
  border-radius: 50%;
  font-size: 2rem;
  font-weight: bold;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  cursor: pointer;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s, transform 0.18s;
}

#goToTopBtn:hover, #goToTopBtn:focus {
  background: #ffd95a;
  color: #232526;
  transform: scale(1.08);
  outline: none;
}

@media (max-width: 600px) {
  #goToTopBtn {
    width: 40px;
    height: 40px;
    font-size: 2rem;
    bottom: 16px;
    right: 20px;
    padding: 30px;
  }
}