/* Functional additions only. Visual design lives in the frozen shared theme.css. */
[hidden]{display:none!important}
.skip-link{position:fixed;left:16px;top:-100px;z-index:100;background:#fff;padding:12px 20px;border:1px solid #d4d4d4;border-radius:6px}
.skip-link:focus{top:12px}
.article-copy [id]{scroll-margin-top:97px}
.reference-heading a:hover,.reference-heading a:focus-visible{text-decoration:underline;text-underline-offset:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Intrinsic dimensions reserve space without overriding the approved responsive aspect ratio. */
.article-lead img,.sources-illustration img{height:auto}
/* Clip the approved full-bleed guide lines at the viewport on narrow screens. */
html{overflow-x:hidden}