/* Self-hosted fonts for 3D-Agent.
   Source: Google Fonts (Inter, Space Grotesk, JetBrains Mono) — woff2, latin + latin-ext subsets.
   All three are variable fonts; one file per subset covers every weight we declare. */

/* Inter — latin */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Inter — latin-ext */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('/fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Space Grotesk — latin */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Space Grotesk — latin-ext */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* JetBrains Mono — latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* JetBrains Mono — latin-ext */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* Metric-compatible fallbacks. Until a webfont arrives, text renders in the
   local fallback scaled to the webfont's average advance width and vertical
   metrics, so the swap changes glyph shapes but not line breaks or box heights.
   Without them the swap reflowed every page: Lighthouse traced /forge's 0.28
   CLS to the Inter and Space Grotesk swaps alone. Overrides derived from
   @capsizecss/metrics 3.5.0 with the same formula next/font uses:
   size-adjust = xWidthAvg(web) / xWidthAvg(local), each vertical override =
   metric / unitsPerEm / size-adjust. Referenced from the font stacks in
   tokens.css; a system with none of the named faces skips straight to
   system-ui. Every alternative listed is metric-compatible with the face the
   numbers were derived from (Liberation Sans and Arimo with Arial, Liberation
   Mono and Cousine with Courier New), which matters because Linux, where the
   headless browsers run, ships no Arial at all. */
@font-face {
  font-family: 'Inter Fallback';
  src: local('Arial'), local('Helvetica'), local('Liberation Sans'), local('Arimo');
  size-adjust: 107.12%;
  ascent-override: 90.44%;
  descent-override: 22.52%;
  line-gap-override: 0%;
}
@font-face {
  font-family: 'Space Grotesk Fallback';
  src: local('Arial'), local('Helvetica'), local('Liberation Sans'), local('Arimo');
  size-adjust: 109.69%;
  ascent-override: 89.71%;
  descent-override: 26.62%;
  line-gap-override: 0%;
}
@font-face {
  font-family: 'JetBrains Mono Fallback';
  src: local('Courier New'), local('Liberation Mono'), local('Cousine');
  size-adjust: 99.98%;
  ascent-override: 102.02%;
  descent-override: 30%;
  line-gap-override: 0%;
}