.site-header__controls {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 1.75rem);
}

.language-switcher,
.experience-language {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans, "Inter", sans-serif);
  font-size: 0.7rem;
  font-weight: 650;
  line-height: 1;
  letter-spacing: 0.1em;
}

.language-switcher::before,
.experience-language::before {
  content: "";
}

.language-switcher span,
.language-switcher a,
.experience-language span,
.experience-language a {
  padding: 0.45rem 0.1rem;
  text-decoration: none;
}

.language-switcher span[aria-current="true"],
.experience-language span[aria-current="true"] {
  opacity: 0.48;
}

.language-switcher a:hover,
.language-switcher a:focus-visible {
  color: var(--color-blue);
}

.language-switcher a:focus-visible,
.experience-language a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

.experience-language {
  position: fixed;
  z-index: 700;
  top: max(1rem, env(safe-area-inset-top));
  left: max(1rem, env(safe-area-inset-left));
  color: rgba(246, 243, 255, 0.72);
  font-family: "IBM Plex Mono", monospace;
}

.experience-language a {
  color: inherit;
}

.experience-language a:hover,
.experience-language a:focus-visible {
  color: #ffcf8f;
}

/* The only Expertise item that opens another world receives a restrained,
   persistent affordance. PDF entries already have their own explicit CTA. */
.expertise__link--portal {
  text-decoration-color: rgba(18, 63, 87, 0.3);
}

.expertise__link--portal span {
  display: inline-block;
  margin-left: 0.18em;
  color: var(--color-blue);
  font-size: 0.82em;
  transition: transform 180ms ease;
}

.expertise__link--portal:hover span,
.expertise__link--portal:focus-visible span {
  transform: translateX(0.16em);
}

html.threshold-handoff:not(.threshold-arrival-ready) .experience-language {
  opacity: 0;
  pointer-events: none;
}

html.threshold-handoff.threshold-arrival-ready .experience-language {
  opacity: 0.72;
  transition: opacity 720ms ease-out;
}

@media (max-width: 64rem) {
  .site-header__controls {
    gap: clamp(0.9rem, 3vw, 1.35rem);
  }
}

@media (max-width: 30rem) {
  .site-header__controls {
    gap: 0.75rem;
  }

  .language-switcher {
    font-size: 0.66rem;
  }
}