/*
  Self-hosted variable fonts — BioEvidenceHub.

  Hosted locally rather than pulled from fonts.gstatic.com: hotlinking Google
  Fonts sends every EU visitor's IP to Google before consent, which a German
  court has already ruled a GDPR breach (LG Munchen I, 3 O 17493/20).

  These are VARIABLE fonts: one file carries every weight from 400 to 800, so
  the whole family costs a single request per script instead of one per weight.

  unicode-range is what makes 25 languages affordable. A Polish page downloads
  latin + latin-ext and nothing else; a Bulgarian page adds cyrillic; and the
  Arabic, Korean and Japanese editions match no range at all, so the browser
  skips these files entirely and renders those scripts in the system font
  stack declared in tokens.css. Never remove unicode-range.
*/

/* Inter normal — latin (47 KB) */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/inter-latin-normal.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 normal — latin-ext (83 KB) */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/inter-latin-ext-normal.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;
}

/* Inter normal — cyrillic (18 KB) */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/inter-cyrillic-normal.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

/* Source Serif 4 italic — latin (127 KB) */
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 400 600;
  font-display: swap;
  src: url('../fonts/source-serif-4-latin-italic.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;
}

/* Source Serif 4 italic — latin-ext (108 KB) */
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 400 600;
  font-display: swap;
  src: url('../fonts/source-serif-4-latin-ext-italic.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;
}

/* Source Serif 4 italic — cyrillic (88 KB) */
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 400 600;
  font-display: swap;
  src: url('../fonts/source-serif-4-cyrillic-italic.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

/* Source Serif 4 normal — latin (119 KB) */
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/source-serif-4-latin-normal.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;
}

/* Source Serif 4 normal — latin-ext (99 KB) */
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/source-serif-4-latin-ext-normal.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;
}

/* Source Serif 4 normal — cyrillic (91 KB) */
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/source-serif-4-cyrillic-normal.woff2') format('woff2');
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

/*
  Metric-compatible fallbacks.

  While a webfont is still downloading the browser paints in the fallback face.
  If that face has different metrics the text reflows the moment the real font
  arrives — that jump is what Core Web Vitals scores as Cumulative Layout Shift.

  These two faces are not real fonts: they wrap the locally installed Arial and
  Georgia and force them to report Inter's and Source Serif's vertical metrics
  and average character width. The swap then happens with no reflow at all.

  They are referenced from tokens.css as the second item in each font stack.
*/
@font-face {
  font-family: 'Inter Fallback';
  src: local('Arial'), local('Helvetica Neue'), local('Liberation Sans');
  ascent-override: 90.20%;
  descent-override: 22.48%;
  line-gap-override: 0%;
  size-adjust: 107.40%;
}

@font-face {
  font-family: 'Source Serif Fallback';
  src: local('Georgia'), local('Times New Roman'), local('Liberation Serif');
  ascent-override: 103.60%;
  descent-override: 33.50%;
  line-gap-override: 0%;
  size-adjust: 97.50%;
}
