/* Language switcher pill — sits in the nav. */
.rs-lang-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.rs-lang-btn {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--fg-3);
  cursor: pointer;
  transition: color .15s ease, background .15s ease;
  font: inherit;
  letter-spacing: inherit;
  line-height: 1;
}
.rs-lang-btn:hover {
  color: var(--fg);
}
.rs-lang-btn.is-active {
  background: var(--fg);
  color: var(--bg);
}
.rs-lang-switch.is-compact .rs-lang-btn {
  padding: 4px 8px;
  font-size: 10.5px;
}

/* Auto-detect banner: small hint when user lands on DE but their browser is EN/ZH */
.rs-lang-hint {
  position: fixed;
  top: 80px;
  right: 16px;
  z-index: 50;
  background: rgba(83, 233, 255, 0.08);
  border: 1px solid rgba(83, 233, 255, 0.3);
  color: var(--fg);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: rs-lang-hint-in .25s ease;
}
@keyframes rs-lang-hint-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.rs-lang-hint button {
  appearance: none;
  background: var(--accent);
  color: var(--bg);
  border: 0;
  padding: 5px 12px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  font-weight: 500;
}
.rs-lang-hint .rs-lang-hint-x {
  background: transparent;
  color: var(--fg-2);
  font-size: 16px;
  padding: 2px 6px;
}

@media (max-width: 720px) {
  .rs-lang-hint { top: auto; bottom: 16px; left: 16px; right: 16px; }
}