.psha-vcc-actions {
    display: grid;
    grid-template-columns: minmax(240px, 80%) auto;
    gap: .5rem;
    align-items: center;
    width: 100%;
    margin: .25rem 0 1rem 0;
}

.psha-vcc-actions a.psha-vcc-add {
    width: 100% !important;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .7rem 1.2rem;
    font-weight: 700;
}

.psha-vcc-actions a.psha-icon-btn {
    min-width: 3.2rem;
    height: 2.75rem;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0 .9rem;
    border: 1px solid rgba(120, 140, 255, .55) !important;
    border-radius: .2rem;
    background: transparent !important;
    box-shadow: none !important;
    color: rgba(120, 140, 255, .95) !important;
}

.psha-vcc-actions a.psha-icon-btn:hover,
.psha-vcc-actions a.psha-icon-btn:active,
.psha-vcc-actions a.psha-icon-btn:focus {
    background: transparent !important;
    box-shadow: none !important;
    filter: none !important;
    opacity: 1 !important;
    border: 1px solid rgba(180, 180, 190, .85) !important;
    color: rgba(180, 180, 190, .95) !important;
}

@media (max-width: 520px) {
    .psha-vcc-actions {
        grid-template-columns: 1fr;
    }
}

.psha-vcc-actions a.psha-icon-btn,
.psha-vcc-actions a.psha-icon-btn:hover,
.psha-vcc-actions a.psha-icon-btn:active,
.psha-vcc-actions a.psha-icon-btn:focus {
    background: transparent !important;
    color: inherit !important;
    border-color: currentColor !important;
    box-shadow: none !important;
    filter: none !important;
    opacity: 1 !important;
}

/* ---- Header language switcher: add label text ---- */

.md-sidebar--primary .md-nav__item--section > .md-nav__link{
  font-weight: 700 !important;
  opacity: .95;
  margin: .2rem 0 .1rem 0 !important;
  padding: .28rem .55rem !important;
  border-radius: .25rem;
  background: rgba(0, 0, 0, 0.04);
}

[data-md-color-scheme="slate"]
.md-sidebar--primary .md-nav__item--section > .md-nav__link{
  background: rgba(255, 255, 255, 0.06);
}

.md-sidebar--primary .md-nav__item--section > .md-nav__link::before{
  content: "• ";
  opacity: .6;
}

.md-sidebar--primary .md-nav__item--nested .md-nav__list .md-nav__link{
  padding-left: .9rem !important;
}

.md-sidebar--primary .md-nav__list[data-md-level="3"] .md-nav__link{
  padding-left: 1.25rem !important;
}

.md-sidebar--primary .md-nav__item--section > .md-nav__link,
.md-sidebar--primary .md-nav__item--nested > label.md-nav__link,
.md-sidebar--primary .md-nav__item--nested > a.md-nav__link{
  background-color: rgba(0, 0, 0, 0.06) !important;
  border-radius: .25rem;
}

[data-md-color-scheme="slate"]
.md-sidebar--primary .md-nav__item--section > .md-nav__link,
[data-md-color-scheme="slate"]
.md-sidebar--primary .md-nav__item--nested > label.md-nav__link,
[data-md-color-scheme="slate"]
.md-sidebar--primary .md-nav__item--nested > a.md-nav__link{
  background-color: rgba(255, 255, 255, 0.08) !important;
}

/* Target the real language button inside md-select (locale-safe) */
.md-header__option .md-select > button.md-header__button.md-icon{
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}

/* Add label to the RIGHT of the icon */
.md-header__option .md-select > button.md-header__button.md-icon::after{
  content: "Language▾";
  font-size: .85rem;
  font-weight: 600;
  opacity: .95;
  white-space: nowrap;
}

/* Localized label text per page language */
html[lang="ja"] .md-header__option .md-select > button.md-header__button.md-icon::after{ content: "言語▾"; }
html[lang="ko"] .md-header__option .md-select > button.md-header__button.md-icon::after{ content: "언어▾"; }

/* Optional: hide the label on small screens to keep the header clean */
@media (max-width: 900px){
  .md-header__option .md-select > button.md-header__button.md-icon::after{
    content: "";
  }
}
/* ---- Psha: Embedded YouTube (Square, ~70% width) ---- */
.md-typeset .psha-yt{
  position: relative;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  margin: .5rem auto 1rem auto;
}

.md-typeset .psha-yt iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 1:1 container */
.md-typeset .psha-yt--square{
  padding-bottom: 100%;
}

/* About 70% of content width (centered). On small screens, use full width. */
.md-typeset .psha-yt--70{
  width: 70%;
  max-width: 520px;
}

@media (max-width: 900px){
  .md-typeset .psha-yt--70{
    width: 100%;
    max-width: 520px;
  }
}