.theme-toggle {
  position: fixed;
  left: 24px;
  bottom: 150px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(25, 25, 25, 0.42);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.theme-toggle:active {
  transform: scale(0.92);
  background: rgba(25, 25, 25, 0.52);
}

.theme-icon {
  font-size: 26px;
  line-height: 1;
}