/* ============================================================================
 * fonts.css — self-hosted Inter (replaces Google Fonts CDN dependency, v1.9 Y6).
 * unicode-range lets browser fetch only the subset needed for visible text:
 *   - inter-vietnamese.woff2 (10 KB) — Vietnamese accented characters
 *   - inter-latin.woff2     (48 KB) — basic ASCII + a few extras (most pages)
 *   - inter-latin-ext.woff2 (85 KB) — extended European accents (rarely used)
 *
 * Each subset declares all 6 weights pointing to same variable font file —
 * Inter v20 is a variable font, browser picks weight via OpenType axis.
 *
 * Eliminates DNS lookup + TLS handshake to fonts.gstatic.com (-150ms first
 * connection) + allows <link rel="preload"> to actually kick in pre-CSS.
 * ========================================================================== */

/* Vietnamese */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('../fonts/inter-vietnamese.woff2') format('woff2');
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
}
/* Latin extended */
@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;
}
/* Latin basic (ASCII + punctuation + currency) */
@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;
}