/* Top-level version switcher (_includes/versions.html), shown in the
   page header. Works without JavaScript (native <details> dropdown);
   assets/js/versions.js only adds close-on-click-outside. */

.st-versions {
  position: relative;
  font-size: 0.75em;
}

.st-versions__button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  border: 1px solid #e6e1e8;
  border-radius: 2em;
  background: var(--link-color, #036ded);
  color: #fff;
  font-size: 1.15em;
  font-weight: 600;
  user-select: none;
  list-style: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.st-versions__label {
  font-weight: 400;
  opacity: 0.85;
}

.st-versions__button::-webkit-details-marker { display: none; }

.st-versions[open] .st-versions__caret { transform: rotate(180deg); }

.st-versions__caret {
  width: 0.85rem;
  height: 0.85rem;
  transition: transform 0.15s ease;
}

.st-versions__button:hover { filter: brightness(1.1); }

.st-versions__button:focus-visible {
  outline: 2px solid var(--link-color, #036ded);
  outline-offset: 1px;
}

.st-versions__menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  z-index: 20;
  min-width: 14rem;
  padding: 0.4rem;
  border: 1px solid #e6e1e8;
  border-radius: 0.375rem;
  background: var(--body-background, #fff);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.st-versions__item {
  display: block;
  padding: 0.35rem 0.6rem;
  border-radius: 0.25rem;
  color: inherit;
  text-decoration: none;
}

.st-versions__item:hover { background: rgba(3, 109, 237, 0.08); }

.st-versions__item--active {
  font-weight: 600;
  color: var(--link-color, #036ded);
}

.st-versions__tag {
  font-size: 0.7em;
  font-weight: 400;
  padding: 0.05rem 0.35rem;
  border: 1px solid #e6e1e8;
  border-radius: 999px;
  opacity: 0.8;
}

.st-versions__note {
  display: block;
  padding: 0.15rem 0.6rem 0.35rem;
  font-size: 0.85em;
  color: var(--text-muted, #6b6b78);
}