.lv-lang {
  font-family:
    "Noto Sans JP",
    -apple-system,
    BlinkMacSystemFont,
    "Helvetica Neue",
    Arial,
    sans-serif;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.78);
}

.lv-lang button {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.lv-lang__flag {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.lv-lang__flag[data-flag="ja"] {
  background: #fff;
}

.lv-lang__flag[data-flag="ja"]::after {
  content: "";
  width: 52%;
  height: 52%;
  border-radius: 50%;
  background: #bc002d;
}

.lv-lang__flag[data-flag="en"] {
  background:
    linear-gradient(#3c3b6e 0 40%, transparent 40%),
    repeating-linear-gradient(
      #b22234 0 12.5%,
      #fff 12.5% 25%
    );
  background-repeat: no-repeat;
}

.lv-lang__flag[data-flag="th"] {
  background: linear-gradient(
    #a51931 0 20%,
    #fff 20% 40%,
    #2d2a4a 40% 60%,
    #fff 60% 80%,
    #a51931 80% 100%
  );
}

.lv-lang__flag[data-flag="ko"] {
  background:
    radial-gradient(circle at 50% 34%, #cd2e3a 0 18%, transparent 19%),
    radial-gradient(circle at 50% 66%, #0047a0 0 18%, transparent 19%),
    linear-gradient(#cd2e3a 50%, #0047a0 50%);
  background-color: #fff;
}

.lv-lang__code,
.lv-lang__current-code {
  display: inline-block;
  min-width: 18px;
  text-align: left;
}

.lv-lang__option {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  min-height: 18px;
  font-size: 10px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.55);
  transition:
    color 220ms ease,
    background-color 220ms ease,
    opacity 220ms ease;
}

.lv-lang__option:not(.is-active) .lv-lang__flag {
  filter: grayscale(1);
  opacity: 0.85;
}

.lv-lang__option:hover,
.lv-lang__option:focus-visible {
  color: rgba(255, 255, 255, 0.88);
  outline: none;
}

.lv-lang__option:not(.is-active):hover .lv-lang__flag,
.lv-lang__option:not(.is-active):focus-visible .lv-lang__flag {
  filter: grayscale(0.35);
  opacity: 1;
}

.lv-lang__option.is-active,
.lv-lang__option[aria-current="true"] {
  color: #fff;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 7px;
}

.lv-lang__option.is-active .lv-lang__flag,
.lv-lang__option[aria-current="true"] .lv-lang__flag {
  filter: none;
  opacity: 1;
}

.lv-lang__current {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 28px;
  min-height: 28px;
  font-size: 11px;
  color: #fff;
}

.lv-lang__current .lv-lang__flag {
  filter: none;
  opacity: 1;
}

.lv-lang__current:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.55);
  outline-offset: 4px;
}

.lv-lang__current-code {
  padding-bottom: 0;
  border-bottom: 0;
}

.lv-lang--rail {
  position: fixed;
  top: 98px;
  right: 56px;
  z-index: 9998;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  width: 56px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.32);
  transition:
    opacity 520ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 520ms linear;
}

body.is-opening-finished .lv-lang--rail,
html.is-after-opening-reload .lv-lang--rail {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.is-global-menu-open .lv-lang--rail {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.lv-lang--rail .lv-lang__list {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  width: 100%;
}

.lv-lang--rail .lv-lang__option {
  justify-content: center;
  width: 100%;
  min-height: 26px;
  padding: 5px 8px;
  box-sizing: border-box;
  border-radius: 7px;
}

.lv-lang--menu {
  margin-top: 8px;
}

.lv-lang__heading {
  margin: 0 0 14px;
  font-size: 10px;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.42);
}

.lv-lang--menu .lv-lang__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.lv-lang--menu .lv-lang__option {
  justify-content: flex-start;
  font-size: 11px;
  padding: 6px 8px;
  border-radius: 7px;
}

html.is-locale-switching [data-i18n],
html.is-locale-switching [data-i18n-html],
html.is-locale-switching .lv-lang__code,
html.is-locale-switching .lv-lang__current-code {
  opacity: 0;
  animation: lv-i18n-locale-fade-out 120ms ease;
}

html.is-locale-fading-in .page-section.is-current [data-i18n],
html.is-locale-fading-in .page-section.is-current [data-i18n-html],
html.is-locale-fading-in .global-menu [data-i18n],
html.is-locale-fading-in .global-menu [data-i18n-html],
html.is-locale-fading-in .bottom-section-nav [data-i18n],
html.is-locale-fading-in .contact-modal [data-i18n],
html.is-locale-fading-in .contact-modal [data-i18n-html],
html.is-locale-fading-in .contact-thanks-modal [data-i18n],
html.is-locale-fading-in .lv-book-float [data-i18n],
html.is-locale-fading-in .lv-lang__code,
html.is-locale-fading-in .lv-lang__current-code {
  animation: lv-i18n-locale-fade-in 160ms ease;
}

@keyframes lv-i18n-locale-fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes lv-i18n-locale-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lv-lang--rail,
  .lv-lang__option {
    transition: none;
  }

  html.is-locale-switching [data-i18n],
  html.is-locale-switching [data-i18n-html],
  html.is-locale-switching .lv-lang__code,
  html.is-locale-switching .lv-lang__current-code,
  html.is-locale-fading-in .page-section.is-current [data-i18n],
  html.is-locale-fading-in .page-section.is-current [data-i18n-html],
  html.is-locale-fading-in .global-menu [data-i18n],
  html.is-locale-fading-in .global-menu [data-i18n-html],
  html.is-locale-fading-in .bottom-section-nav [data-i18n],
  html.is-locale-fading-in .contact-modal [data-i18n],
  html.is-locale-fading-in .contact-modal [data-i18n-html],
  html.is-locale-fading-in .contact-thanks-modal [data-i18n],
  html.is-locale-fading-in .lv-book-float [data-i18n],
  html.is-locale-fading-in .lv-lang__code,
  html.is-locale-fading-in .lv-lang__current-code {
    opacity: 1;
    animation: none;
  }
}

@media (max-width: 1050px) {
  .lv-lang--rail {
    position: fixed;
    top: 60px;
    right: 14px;
    width: 54px;
    gap: 8px;
  }

  .lv-lang--rail .lv-lang__current {
    display: inline-flex;
    width: 54px;
    min-width: 54px;
    height: 38px;
    min-height: 38px;
    padding: 0 6px;
    gap: 6px;
    font-size: 10px;
    background: rgba(0, 0, 0, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    box-sizing: border-box;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.28);
    white-space: nowrap;
  }

  .lv-lang--rail .lv-lang__list {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 54px;
    min-width: 54px;
    padding: 4px 0;
    gap: 2px;
    background: rgba(0, 0, 0, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    box-sizing: border-box;
  }

  .lv-lang--rail .lv-lang__option {
    width: 100%;
    justify-content: center;
    gap: 6px;
    padding: 6px 6px;
    box-sizing: border-box;
    white-space: nowrap;
  }

  .lv-lang--rail.is-open .lv-lang__list {
    display: flex;
  }
}

@media (max-width: 560px) {
  .lv-lang--rail {
    top: 66px;
    right: 20px;
  }
}

@media (min-width: 1051px) {
  .lv-lang--rail {
    width: auto;
    min-width: 72px;
    padding: 8px 7px 9px;
    background: rgba(0, 0, 0, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    box-sizing: border-box;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.32);
  }

  .lv-lang--rail .lv-lang__option {
    color: rgba(255, 255, 255, 0.55);
  }

  .lv-lang--rail .lv-lang__option.is-active,
  .lv-lang--rail .lv-lang__option[aria-current="true"] {
    color: #fff;
    background: rgba(255, 255, 255, 0.16);
  }
}