:root {
  --nz-text-control-navy: #0b3568;
  --nz-text-control-teal: #087f8f;
  --nz-text-control-border: rgba(11, 53, 104, 0.18);
}

.nz-text-size-control {
  position: fixed;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  direction: ltr;
  color: var(--nz-text-control-navy);
  border: 1px solid var(--nz-text-control-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 28px rgba(8, 37, 71, 0.14);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 13px;
  line-height: 1;
}

.nz-text-size-label {
  padding: 0 7px 0 9px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.nz-text-size-control button {
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  color: var(--nz-text-control-navy);
  border: 0;
  border-radius: 999px;
  background: #eef7f8;
  cursor: pointer;
  font: 750 15px/1 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition: color 160ms ease, background-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.nz-text-size-control button:hover:not(:disabled) {
  color: #fff;
  background: var(--nz-text-control-teal);
  transform: translateY(-1px);
}

.nz-text-size-control button:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 3px rgba(8, 127, 143, 0.26);
}

.nz-text-size-control button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.nz-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 480px) {
  .nz-text-size-control {
    right: max(10px, env(safe-area-inset-right));
    bottom: calc(76px + env(safe-area-inset-bottom));
  }

  .nz-text-size-label {
    padding-left: 7px;
    font-size: 12px;
  }

  .nz-text-size-control button {
    width: 44px;
    height: 44px;
  }
}

@media (min-width: 481px) and (max-width: 980px) {
  .nz-text-size-control { bottom: calc(78px + env(safe-area-inset-bottom)); }
}

@media print {
  .nz-text-size-control {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nz-text-size-control button {
    transition: none;
  }
}