/* language switcher (appended design system for i18n) */
.lang { position: relative; }
.lang > summary {
  list-style: none; cursor: pointer; color: var(--ink2); font-size: 12px;
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; background: none;
}
.lang > summary::-webkit-details-marker { display: none; }
.lang > summary:hover { color: var(--ink); }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 30;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 6px; min-width: 180px; max-height: 70vh; overflow: auto;
  box-shadow: 0 8px 30px rgba(0,0,0,.35);
}
.lang-menu a {
  display: block; padding: 6px 10px; border-radius: 8px; color: var(--ink2);
  font-size: 12px; text-decoration: none; white-space: nowrap;
}
.lang-menu a:hover { background: var(--panel2); color: var(--ink); }
.lang-menu a.cur { color: var(--ink); font-weight: 700; }