.publication-return {
  --publication-return-bg: rgba(14, 15, 14, 0.9);
  --publication-return-ink: #f3f1e9;
  position: fixed;
  z-index: 2147483000;
  top: 18px;
  left: 18px;
  min-width: 44px;
  min-height: 44px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid color-mix(in srgb, var(--publication-return-ink) 36%, transparent);
  background: var(--publication-return-bg);
  color: var(--publication-return-ink);
  font: 500 11px/1 system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  letter-spacing: 0;
  text-decoration: none;
  transition: opacity 160ms ease, transform 180ms ease;
}

.publication-return:hover,
.publication-return:focus-visible {
  border-color: var(--publication-return-ink);
}

.publication-return:focus-visible {
  outline: 2px solid var(--publication-return-ink);
  outline-offset: 3px;
}

.publication-return.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-60px);
}

html[data-publication-issue="2026-04"] .publication-return {
  --publication-return-bg: rgba(255, 255, 255, 0.94);
  --publication-return-ink: #2d2d2b;
}

html[data-publication-issue="2026-05"] .publication-return {
  --publication-return-bg: rgba(3, 16, 70, 0.94);
  --publication-return-ink: #e8d08d;
}

html[data-publication-issue="2026-06"] .publication-return {
  top: 64px;
  --publication-return-bg: rgba(2, 8, 16, 0.9);
  --publication-return-ink: #d7b66c;
}

@media (max-width: 620px) {
  .publication-return {
    top: 10px;
    left: 10px;
    width: 44px;
    padding: 0;
  }

  .publication-return b {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  html[data-publication-issue="2026-06"] .publication-return {
    top: 58px;
  }
}

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