/* Jost (Google Fonts) has no Ukrainian Cyrillic-extension glyphs at all — і/ї/є (upper or lower) are simply absent from every weight, verified against Google's own font files. Without this patch, the browser silently falls through to its generic system sans for just those letters mid-word, mismatched against the rest of the Jost text around them (index-ua.html has 500+ occurrences across nearly every section). These three @font-face rules share the family name 'Jost' on purpose — that's what makes them a per-character fallback: browsers already split Google's Jost delivery into unicode-range'd faces per script, so when a character isn't covered by any of Google's Jost faces, they fall through to the next @font-face still named 'Jost', which is this file. Link this AFTER the Google Fonts in . і/ї alias straight onto Jost's own existing glyphs — і is Latin i (same shape in this font), ї is Latin ï (same precomposed dot placement). є/Є do NOT alias to Jost's real э/Э or to a mirrored e/E — tried both, and both read as Э to a Ukrainian eye: Jost's e/E has a crossbar that spans the full width and touches the closing curve, same as э/Э, whereas real є has a short bar that stops well short of the opening. So є/Є are constructed glyphs: Jost's own с/С bowl (unioned via boolean-path union, not just overlaid) with a new short bar sized off real є's proportions (~19%-68% of the bowl's width, vertically centered) — still 100% Jost's own outlines, just assembled instead of aliased. See CLAUDE.md for the visual comparisons that led here. No ґ/Ґ — 0 occurrences in the current copy, and no letter in Jost approximates its upturn hook well enough to build from. Jost is SIL OFL 1.1 (see OFL.txt here), which explicitly permits modified/derivative font files provided the license travels with them — hence this folder, same self-hosted-module pattern as the other font folders in this project. */ @font-face { font-family: 'Jost'; font-style: normal; font-weight: 400; font-display: swap; unicode-range: U+0404, U+0406-0407, U+0454, U+0456-0457; src: url('jost-ua-patch-400.woff2') format('woff2'), url('jost-ua-patch-400.woff') format('woff'); } @font-face { font-family: 'Jost'; font-style: normal; font-weight: 500; font-display: swap; unicode-range: U+0404, U+0406-0407, U+0454, U+0456-0457; src: url('jost-ua-patch-500.woff2') format('woff2'), url('jost-ua-patch-500.woff') format('woff'); } @font-face { font-family: 'Jost'; font-style: normal; font-weight: 600; font-display: swap; unicode-range: U+0404, U+0406-0407, U+0454, U+0456-0457; src: url('jost-ua-patch-600.woff2') format('woff2'), url('jost-ua-patch-600.woff') format('woff'); }