.w {
  max-width: 900px;
}

/* Safety net: hide KaTeX's accessibility MathML even if the CDN katex.css
   failed to load. Without this, the raw TeX annotation inside <math> tags
   becomes visible alongside the rendered HTML on some mobile browsers. */
.katex-mathml {
  position: absolute !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
  -webkit-clip-path: inset(50%) !important;
  clip-path: inset(50%) !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  padding: 0 !important;
  border: 0 !important;
}

/* The JS fitter in _includes/mathjax.html sets font-size on .katex-display
   to shrink wide equations to fit. We deliberately do NOT clip overflow here,
   so that if JS is disabled or the fitter fails, equations remain visible
   (overflowing the column) rather than disappearing. */
.katex-display {
  max-width: 100%;
}

/* Once the fitter has measured an equation and applied a fit, it adds this
   class — at which point we can safely hide any sub-pixel overflow. */
.katex-display.is-fitted {
  overflow: hidden;
}

/* Don't constrain .katex with max-width — the fitter needs to measure its
   natural content width to compute the correct shrink factor. */