.siv-return {
  position: fixed;
  z-index: 2147482000;
  left: clamp(14px, 2.2vw, 34px);
  bottom: max(14px, env(safe-area-inset-bottom));
  display: inline-flex;
  align-items: center;
  gap: .72em;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  background: rgba(31, 29, 26, .82);
  color: #f2efe7 !important;
  box-shadow: 0 9px 30px rgba(0, 0, 0, .2);
  -webkit-backdrop-filter: blur(12px) saturate(.9);
  backdrop-filter: blur(12px) saturate(.9);
  font: 600 10px/1 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: .13em;
  text-decoration: none !important;
  white-space: nowrap;
  transform: translateZ(0);
  -webkit-tap-highlight-color: transparent;
  transition: transform .24s ease, background-color .24s ease, color .24s ease, border-color .24s ease;
}

.siv-return:hover {
  border-color: rgba(242, 239, 231, .86);
  background: #f2efe7;
  color: #282820 !important;
  transform: translate3d(0, -2px, 0);
}

.siv-return:focus-visible {
  outline: 2px solid #f2efe7;
  outline-offset: 3px;
}

@media (max-width: 700px) {
  .siv-return {
    left: 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
    min-height: 38px;
    padding: 0 12px;
    font-size: 9px;
    letter-spacing: .1em;
    display: inline-flex !important;
    opacity: 1;
    visibility: visible;
  }
}

@media (hover: none) and (pointer: coarse) {
  .siv-return:focus:not(:focus-visible) { outline: 0; box-shadow: 0 9px 30px rgba(0, 0, 0, .2); }
}

@media (prefers-reduced-motion: reduce) {
  .siv-return { transition: none; }
}