.site-back-row {
  position: fixed;
  top: 82px;
  left: max(14px, calc((100vw - 1440px) / 2 + 18px));
  z-index: 18;
  width: auto;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

.site-back-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid rgba(213, 178, 103, .22);
  border-radius: 999px;
  background: rgba(5, 12, 21, .84);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
  color: #d3cec3;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .08em;
  line-height: 1;
  pointer-events: auto;
  text-transform: uppercase;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.site-back-link:hover,
.site-back-link:focus-visible {
  border-color: rgba(213, 178, 103, .48);
  background: rgba(9, 20, 33, .94);
  color: #f1d590;
}

.site-back-link:focus-visible {
  outline: 2px solid rgba(213, 178, 103, .7);
  outline-offset: 4px;
  border-radius: 999px;
}

@media (max-width: 900px) {
  body:has(.site-back-row) {
    padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .site-back-row {
    top: auto;
    right: auto;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    left: calc(12px + env(safe-area-inset-left, 0px));
  }

  .site-back-link {
    min-height: 44px;
    padding: 8px 13px;
    font-size: .75rem;
    box-shadow: 0 10px 28px rgba(0, 0, 0, .3);
  }

  html.site-ebook-landing body:has(.site-back-row) {
    padding-bottom: 0;
  }

  html.site-ebook-landing .site-back-row {
    top: calc(76px + env(safe-area-inset-top, 0px));
    bottom: auto;
    left: calc(12px + env(safe-area-inset-left, 0px));
  }

  html.site-ebook-landing .site-back-row + main {
    padding-top: 56px;
  }
}