.theme-toggle-ci {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 99999;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--accent-border, rgba(0, 197, 255, 0.4));
  background: var(--accent, #00c5ff);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 20px var(--accent-glow, rgba(0, 197, 255, 0.3));
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
}
.theme-toggle-ci:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow, rgba(0, 197, 255, 0.5));
}
body.night .theme-toggle-ci {
  background: var(--accent, #00d4ff);
  border-color: var(--accent-border, rgba(0, 212, 255, 0.3));
}