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.proof__reading{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}@media(max-width:1023px){.proof__frame{grid-template-columns:minmax(0,1fr)}}.caveat{color:var(--color-text-muted);font-size:var(--font-size-sm)}.principle__frame,.ground__frame{margin:0;justify-self:start}.sticky-ok:not(.motion-reduce) .principle__frame{position:absolute;left:var(--stage-left);bottom:calc(var(--lb) + var(--space-6));margin:0;opacity:0;transition:opacity var(--motion-slow) var(--motion-easing)}.sticky-ok:not(.motion-reduce) .principle__frame.is-on,.sticky-ok:not(.motion-reduce) .principle__frame.is-past{opacity:1}.sticky-ok:not(.motion-reduce) .ground__frame{position:absolute;left:var(--stage-left);top:calc(34svh - var(--space-8) - var(--space-4));margin:0;opacity:0;transition:opacity var(--motion-slow) var(--motion-easing)}.sticky-ok:not(.motion-reduce) .ground.is-citing .ground__frame{opacity:1}.sticky-ok:not(.motion-reduce) .install.is-folding 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