/* Material Design 3 styled floating language switcher */
.lang-switcher[aria-hidden='true'] {
  display: none !important;
}

.lang-switcher.lang-switcher-floating {
  position: fixed !important;
  right: 24px !important;
  bottom: 24px !important;
  z-index: 1400;
  width: 124px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  pointer-events: auto;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--md-sys-color-outline, #85736d) 40%, transparent);
  background: color-mix(in srgb, var(--md-sys-color-surface, #ffffff) 82%, var(--md-sys-color-primary-container, #ffdbcc));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18), 0 1px 2px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: width 0.24s ease, box-shadow 0.22s ease, background-color 0.22s ease, border-color 0.22s ease;
}

.lang-switcher.lang-switcher-floating * {
  box-sizing: border-box;
}

.lang-switcher.lang-switcher-floating .lang-trigger,
.lang-switcher.lang-switcher-floating .lang-menu,
.lang-switcher.lang-switcher-floating .lang-btn {
  pointer-events: auto;
}

.lang-switcher.lang-switcher-floating.open {
  width: 176px;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.2);
}

.lang-trigger {
  width: 100%;
  min-height: 48px;
  border: none;
  border-radius: 0;
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  color: var(--md-sys-color-on-surface, #1c1b1f);
  background: transparent;
  cursor: pointer;
  font: 500 14px/1.2 "Google Sans", "Noto Sans SC", sans-serif;
  position: relative;
  transition: transform 0.16s ease, color 0.2s ease, background-color 0.2s ease;
}

.lang-trigger:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--md-sys-color-primary-container, #ffdbcc) 58%, transparent);
}

.lang-trigger:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--md-sys-color-primary, #0a84ff) 34%, transparent);
  outline-offset: -3px;
}

.lang-current {
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.lang-center {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 0;
}

.lang-center .material-symbols-outlined {
  font-size: 19px;
}

.lang-menu {
  width: 100%;
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0 8px;
  border-radius: 0;
  border-top: 0 solid color-mix(in srgb, var(--md-sys-color-outline, #85736d) 36%, transparent);
  background: transparent;
  transition: max-height 0.24s ease, opacity 0.2s ease, padding 0.2s ease, border-top-width 0.2s ease;
}

.lang-switcher.lang-switcher-floating.open .lang-menu {
  max-height: 220px;
  opacity: 1;
  padding: 6px 8px 8px;
  border-top-width: 1px;
}

.lang-btn {
  width: 100%;
  border: none;
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  background: transparent;
  color: var(--md-sys-color-on-surface, #1c1b1f);
  font: 500 14px/1.2 "Google Sans", "Noto Sans SC", sans-serif;
  cursor: pointer;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: background-color 0.16s ease, color 0.16s ease, opacity 0.18s ease, transform 0.2s ease;
}

.lang-switcher.lang-switcher-floating.open .lang-btn {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lang-switcher.lang-switcher-floating.open .lang-btn:nth-child(1) {
  transition-delay: 40ms;
}

.lang-switcher.lang-switcher-floating.open .lang-btn:nth-child(2) {
  transition-delay: 90ms;
}

.lang-switcher.lang-switcher-floating.open .lang-btn:nth-child(3) {
  transition-delay: 140ms;
}

.lang-switcher.lang-switcher-floating:not(.open) .lang-btn:nth-child(1) {
  transition-delay: 140ms;
}

.lang-switcher.lang-switcher-floating:not(.open) .lang-btn:nth-child(2) {
  transition-delay: 90ms;
}

.lang-switcher.lang-switcher-floating:not(.open) .lang-btn:nth-child(3) {
  transition-delay: 40ms;
}

.lang-btn:hover {
  background: color-mix(in srgb, var(--md-sys-color-secondary-container, #ffdbcc) 58%, transparent);
}

.lang-btn.active {
  background: color-mix(in srgb, var(--md-sys-color-primary-container, #ffdbcc) 78%, transparent);
  color: var(--md-sys-color-on-primary-container, #3b0900);
}

.lang-check {
  position: absolute;
  right: 10px;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.lang-btn.active .lang-check {
  opacity: 1;
  transform: scale(1);
}

@media (max-width: 768px) {
  .lang-switcher.lang-switcher-floating {
    right: 16px;
    bottom: 16px;
    width: 116px;
  }

  .lang-switcher.lang-switcher-floating.open {
    width: 164px;
  }

  .lang-trigger {
    min-height: 44px;
    padding: 9px 12px;
  }
}

html[data-theme='dark'] .lang-trigger,
body.dark .lang-trigger,
.dark .lang-trigger {
  color: var(--md-sys-color-on-surface, #e6e1e6);
}

html[data-theme='dark'] .lang-menu,
body.dark .lang-menu,
.dark .lang-menu {
  border-color: color-mix(in srgb, var(--md-sys-color-outline, #a08d86) 42%, transparent);
}

html[data-theme='dark'] .lang-btn,
body.dark .lang-btn,
.dark .lang-btn {
  color: var(--md-sys-color-on-surface, #e6e1e6);
}

html[data-theme='dark'] .lang-btn:hover,
body.dark .lang-btn:hover,
.dark .lang-btn:hover {
  background: color-mix(in srgb, var(--md-sys-color-secondary-container, #5d4035) 46%, transparent);
}

html[data-theme='dark'] .lang-btn.active,
body.dark .lang-btn.active,
.dark .lang-btn.active {
  background: color-mix(in srgb, var(--md-sys-color-primary-container, #823100) 56%, transparent);
  color: var(--md-sys-color-on-primary-container, #ffdbcc);
}