.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
  background: var(--color-bg);
}

.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-accent-ring);
}

.theme-toggle__icon {
  display: none;
  line-height: 0;
}

html[data-theme='dark'] .theme-toggle__icon--sun {
  display: inline-flex;
}

html:not([data-theme='dark']) .theme-toggle__icon--moon {
  display: inline-flex;
}

.theme-appearance-options {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.theme-appearance-options .btn-theme-choice {
  flex: 1;
  min-width: 120px;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.theme-appearance-options .btn-theme-choice:hover {
  border-color: var(--color-border-strong);
}

.theme-appearance-options .btn-theme-choice.is-active {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}