[data-theme-toggle] {
  background: var(--tt-bg, rgba(127, 140, 149, 0.12));
  border: 1px solid var(--tt-line, rgba(127, 140, 149, 0.28));
  border-radius: 999px;
  display: inline-flex;
  gap: 2px;
  padding: 2px;
}

[data-theme-toggle] button {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: var(--tt-ink, currentColor);
  cursor: pointer;
  display: inline-flex;
  height: 28px;
  justify-content: center;
  opacity: 0.65;
  padding: 0;
  width: 30px;
}

[data-theme-toggle] button:hover { opacity: 1; }

[data-theme-toggle] button[aria-pressed="true"] {
  background: var(--tt-active, rgba(127, 140, 149, 0.28));
  opacity: 1;
}

[data-theme-toggle] button:focus-visible { outline: 2px solid var(--tt-focus, currentColor); outline-offset: 1px; }