/* ===== Theme Switch ===== */
.theme-toggle {
  all: unset;
  box-sizing: border-box;
  position: fixed;
  top: 20px;
  right: 20px;
  left: auto;
  z-index: 999;
  cursor: pointer;
  width: 52px;
  height: 28px;
  background: var(--switch-bg);
  border: 2px solid var(--border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  padding: 2px;
  transition: background 0.3s;
}

.theme-toggle .dot {
  width: 20px;
  height: 20px;
  background: var(--switch-dot);
  border-radius: 2px;
  transition: transform 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

[data-theme="dark"] .theme-toggle .dot {
  transform: translateX(24px);
}

@media (max-width: 600px) {
  .theme-toggle { top: 12px; right: 12px; width: 48px; height: 28px; }
  .theme-toggle .dot { width: 20px; height: 20px; }
  [data-theme="dark"] .theme-toggle .dot { transform: translateX(20px); }
}