:root {
  --reading-scale: 1.15;
}

body .reading-size-toggle {
  appearance: none;
  display: inline-grid;
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  flex: 0 0 44px;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(209, 173, 108, .5);
  border-radius: 999px;
  color: #f0d59f;
  background: rgba(10, 16, 25, .88);
  box-shadow: none;
  font: 700 .75rem/1 var(--ds-font-sans, "Noto Sans SC", "Microsoft YaHei", sans-serif);
  letter-spacing: 0;
  cursor: pointer;
  opacity: .86;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease, opacity .18s ease, transform .18s ease;
  backdrop-filter: blur(12px);
}

body .reading-size-toggle:hover {
  border-color: #d1ad6c;
  background: rgba(27, 37, 51, .98);
  color: #fff1cc;
  opacity: 1;
}

body .reading-size-toggle:focus-visible {
  outline: 2px solid #d1ad6c;
  outline-offset: 3px;
  opacity: 1;
}

body .reading-size-toggle[aria-pressed="true"] {
  background: rgba(209, 173, 108, .14);
}

body .reading-size-toggle.reading-size-toggle--inline {
  position: relative;
  inset: auto;
  z-index: 1;
  align-self: center;
  margin-inline-start: 4px;
}

/* Pages without a stable header mount receive a narrow edge tab. It occupies
   a 44 px touch target and stays away from
   mobile bottom navigation and toast/action areas. */
body .reading-size-toggle.reading-size-toggle--floating {
  position: fixed;
  z-index: 10000;
  top: max(92px, calc(50vh - 22px));
  right: -7px;
  border-radius: 999px 0 0 999px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .28);
  opacity: .58;
}

body .reading-size-toggle.reading-size-toggle--floating:hover,
body .reading-size-toggle.reading-size-toggle--floating:focus-visible {
  right: 0;
  opacity: 1;
  transform: none;
}

@media (max-width: 760px) {
  body .reading-size-toggle {
    width: 44px;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    flex-basis: 44px;
    font-size: .75rem;
  }

  body .reading-size-toggle.reading-size-toggle--inline {
    margin-inline-start: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  body .reading-size-toggle { transition: none; }
}

@media print {
  .reading-size-toggle { display: none !important; }
}