/* Fixed vertical footer-links sidebar + theme/language toggles — issue #256
   (Ticket 4 of #245): moved out of album-promo.css:34-159 (plus the
   max-width: 767.98px media rule) verbatim, alongside the sidebar/sidebar.js
   component extraction. --chloe-sidebar-w/--chloe-sidebar-bar-h stay
   declared in album-promo.css's :root (also read by .chloe-page there) —
   see issue #256 review discussion. */
.chloe-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--chloe-sidebar-w);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 0;
  background: transparent;
  z-index: 1030;
}

.chloe-sidebar__icons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.chloe-sidebar__icons a {
  color: var(--chloe-ink);
  font-size: 1.25rem;
  line-height: 1;
  text-decoration: none;
}

.chloe-sidebar__icons a:hover {
  color: var(--chloe-mint-deep);
}

.chloe-sidebar__controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgb(0 0 0 / 0.08);
}

/* Follow-up review comment on PR #166 (2026-07-24): theme/language controls
   redone as app.js's sliding "pill" switch (track + thumb, flanking on/off
   labels) instead of a plain icon-button/select pair — oriented vertically
   since the sidebar is a narrow fixed column (desktop), flipped to
   horizontal on the mobile bottom bar below (more width there, less
   height). Colors come from this page's own --chloe-* palette rather than
   app.js's --rc-* vars, per the self-contained-page constraint. */
.chloe-switch {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  cursor: pointer;
  user-select: none;
  color: var(--chloe-ink);
}

.chloe-switch-label {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.5;
  line-height: 1;
  transition: opacity 0.2s ease;
}

.chloe-switch-label.is-active {
  opacity: 1;
}

.chloe-switch-track {
  position: relative;
  width: 22px;
  height: 38px;
  border-radius: 999px;
  flex-shrink: 0;
}

.chloe-switch-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  overflow: hidden;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.chloe-switch--theme .chloe-switch-track {
  background: var(--chloe-pink-deep);
}

.chloe-switch--theme[aria-checked="true"] .chloe-switch-track {
  background: var(--chloe-ink);
}

.chloe-switch--theme[aria-checked="false"] .chloe-switch-thumb {
  transform: translateY(0);
}

.chloe-switch--theme[aria-checked="true"] .chloe-switch-thumb {
  transform: translateY(18px);
}

.chloe-switch--lang .chloe-switch-track {
  background: var(--chloe-mint);
}

.chloe-switch--lang[aria-checked="false"] .chloe-switch-thumb {
  transform: translateY(0);
}

.chloe-switch--lang[aria-checked="true"] .chloe-switch-thumb {
  transform: translateY(18px);
}

/* --- mobile — sidebar collapses to a bottom bar --- */
@media (max-width: 767.98px) {
  .chloe-sidebar {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: var(--chloe-sidebar-bar-h);
    flex-direction: row;
    justify-content: center;
    padding: 0.5rem 0;
  }

  .chloe-sidebar__icons {
    flex-direction: row;
    flex-wrap: nowrap;
    flex-shrink: 0;
    align-items: center;
    gap: 1.25rem;
    max-width: 100%;
    overflow-x: auto;
    padding: 0 0.75rem;
  }

  .chloe-sidebar__controls {
    flex-direction: row;
    margin-top: 0;
    padding-top: 0;
    padding-left: 0.75rem;
    border-top: none;
    border-left: 1px solid rgb(0 0 0 / 0.08);
  }

  .chloe-switch {
    flex-direction: row;
    gap: 0.35rem;
  }

  .chloe-switch-track {
    width: 38px;
    height: 22px;
  }

  .chloe-switch--theme[aria-checked="false"] .chloe-switch-thumb,
  .chloe-switch--lang[aria-checked="false"] .chloe-switch-thumb {
    transform: translateX(0);
  }

  .chloe-switch--theme[aria-checked="true"] .chloe-switch-thumb,
  .chloe-switch--lang[aria-checked="true"] .chloe-switch-thumb {
    transform: translateX(18px);
  }
}