/* ============================================================
   LISI i18n – Language Switcher Styles
   ============================================================ */

/* Container */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--line, #e8dfcc);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(4px);
}

/* Each pill button */
.lang-switch button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 9px;
  border-radius: 999px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink2, #3a4843);
  transition: color 0.2s ease, background 0.2s ease, text-decoration-color 0.2s ease;
  text-decoration: underline transparent;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  line-height: 1;
  white-space: nowrap;
}

.lang-switch button:hover {
  color: var(--leaf2, #3f6c3a);
  text-decoration-color: var(--leaf2, #3f6c3a);
}

/* Active / current language */
.lang-switch button[aria-current="true"] {
  background: var(--ink, #1f2a26);
  color: var(--paper, #f7f1e6);
  text-decoration: none;
}

.lang-switch button[aria-current="true"]:hover {
  background: var(--ink2, #3a4843);
  color: var(--paper, #f7f1e6);
}

/* ---- Home (dark background) ---- */
/* When rendered inside the dark home-tree layout, invert colours */
body.home-tree .lang-switch {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(0, 0, 0, 0.3);
}

body.home-tree .lang-switch button {
  color: rgba(251, 246, 234, 0.75);
}

body.home-tree .lang-switch button:hover {
  color: rgba(251, 246, 234, 1);
  text-decoration-color: var(--sun, #f4cf7e);
}

body.home-tree .lang-switch button[aria-current="true"] {
  background: rgba(251, 246, 234, 0.18);
  color: rgba(251, 246, 234, 1);
}

/* ---- home-tree standalone page (home-tree/index.html .top header) ---- */
/* The standalone home-tree page has class="top" header with light text.
   We keep it consistent by targeting the .top container. */
.top .lang-switch {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(0, 0, 0, 0.25);
}

.top .lang-switch button {
  color: rgba(251, 246, 234, 0.72);
  font-size: 9px;
}

.top .lang-switch button:hover {
  color: rgba(251, 246, 234, 1);
  text-decoration-color: var(--sun, #f4cf7e);
}

.top .lang-switch button[aria-current="true"] {
  background: rgba(251, 246, 234, 0.15);
  color: rgba(251, 246, 234, 1);
}

/* ---- Mobile ---- */
@media (max-width: 639px) {
  .lang-switch {
    gap: 1px;
    padding: 2px;
  }

  .lang-switch button {
    padding: 3px 7px;
    font-size: 9px;
    letter-spacing: 0.14em;
  }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .lang-switch button {
    transition: none;
  }
}