/**
 * Theme Toggle Component
 *
 * Light/dark mode switch shown in the top-right corner of the site header.
 * Positioned absolutely so it does not affect the header layout.
 * Dependencies: variables.css, header.css
 */

.theme-toggle {
  position: absolute;
  top: var(--spacing-md);
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  background: transparent;
  color: var(--text-color-secondary);
  cursor: pointer;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
}

@media (hover: hover) and (pointer: fine) {
  .theme-toggle:hover {
    background: var(--hover-background);
  }
}

.theme-toggle:active {
  background: var(--hover-background);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.theme-toggle__icon {
  width: 18px;
  height: 18px;
  display: block;
}

/* Show the moon in light mode (switch to dark) and the sun in dark mode */
.theme-toggle__icon--sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__icon--sun {
  display: block;
}

:root[data-theme="dark"] .theme-toggle__icon--moon {
  display: none;
}