/* Language toggle (EN | VI) - replaces GitHub source link in header */
.lang-toggle {
  margin-left: 0.4rem;
}

.lang-toggle__buttons {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--md-primary-fg-color--light);
  border-radius: 0.3rem;
  overflow: hidden;
  background: transparent;
}

.lang-toggle__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.7rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--md-primary-fg-color);
  background: transparent;
  border: none;
  border-right: 1px solid var(--md-primary-fg-color--light);
  transition: background-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.lang-toggle__btn:last-child {
  border-right: none;
}

.lang-toggle__btn:hover {
  background: var(--md-primary-fg-color--light);
  color: var(--md-primary-bg-color);
}

.lang-toggle__btn:focus {
  outline: 2px solid var(--md-accent-fg-color);
  outline-offset: -2px;
}

.lang-toggle__btn:active {
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
}

/* On narrow screens, collapse to icons only or hide */
@media screen and (max-width: 60em) {
  .lang-toggle__btn {
    padding: 0.4rem 0.5rem;
    font-size: 0.65rem;
  }
}

/* Breadcrumb path styling - Material's built-in, just enhance visibility */
.md-path {
  font-size: 0.7rem;
  padding: 0.6rem 0;
  background: var(--md-default-bg-color--light);
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.md-path__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
}

.md-path__item {
  display: inline-flex;
  align-items: center;
  color: var(--md-default-fg-color--light);
}

.md-path__item:not(:last-child)::after {
  content: "›";
  margin: 0 0.4rem;
  color: var(--md-default-fg-color--lighter);
  font-weight: 400;
}

.md-path__link {
  color: var(--md-primary-fg-color);
  text-decoration: none;
  padding: 0.1rem 0.3rem;
  border-radius: 0.2rem;
  transition: background-color 0.15s ease;
}

.md-path__link:hover {
  background: var(--md-primary-fg-color--light);
  color: var(--md-primary-bg-color);
}

.md-path .md-path__item:last-child .md-path__link {
  color: var(--md-default-fg-color);
  font-weight: 500;
  cursor: default;
}

.md-path .md-path__item:last-child .md-path__link:hover {
  background: transparent;
  color: var(--md-default-fg-color);
}