/* reading-scale-contract:v1 — browser zoom stays 100% */
:root { --reading-scale: 1.75; --reading-scale-inverse: .5714286; }
html[data-reading-scale="1"] { --reading-scale: 1; --reading-scale-inverse: 1; }
html[data-reading-scale="1.25"] { --reading-scale: 1.25; --reading-scale-inverse: .8; }
html[data-reading-scale="1.5"] { --reading-scale: 1.5; --reading-scale-inverse: .6666667; }
html[data-reading-scale="1.75"] { --reading-scale: 1.75; --reading-scale-inverse: .5714286; }
html[data-reading-scale="2"] { --reading-scale: 2; --reading-scale-inverse: .5; }

.reading-scale-control {
  position: fixed; right: 14px; bottom: 14px; z-index: 2147483000;
  display: flex; align-items: center; gap: 3px; padding: 5px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--panel);
  color: var(--text); font: 600 11px/1 'JetBrains Mono', ui-monospace, monospace;
}
.reading-scale-label { padding: 0 6px; color: var(--text-muted); }
.reading-scale-btn {
  min-width: 40px; height: 30px; padding: 0 7px; border: 1px solid transparent;
  border-radius: 6px; background: transparent; color: inherit; font: inherit; cursor: pointer;
}
.reading-scale-btn:hover { border-color: var(--border-strong); }
.reading-scale-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; box-shadow: none; }
.reading-scale-btn.on { background: var(--accent); color: var(--bg); }

@media (min-width: 1200px) and (pointer: fine) {
  body[data-reading-scale-page] { zoom: var(--reading-scale); }
  .reading-scale-control { zoom: var(--reading-scale-inverse); }
}
@media (max-width: 1199px), (pointer: coarse) {
  body[data-reading-scale-page] { zoom: 1 !important; }
  .reading-scale-control { display: none !important; }
}
@media print {
  body[data-reading-scale-page] { zoom: 1 !important; }
  .reading-scale-control { display: none !important; }
}