/**
 * iNKPPL — Self-hosted Font Declarations
 * All @font-face rules for the 4-role typography system.
 * Loaded via <link rel="stylesheet"> in the shared header chunk.
 *
 * Fonts: DM Sans (UI), DM Serif Display (Display), Source Serif 4 (Editorial), JetBrains Mono (Mono)
 * Subsets: Latin, Latin-ext, Cyrillic (where available)
 *
 * @version 1.0.0
 * @date 2026-02-24
 */

/* ==========================================================================
   DM Sans — UI / Body font (Variable, weights 400-700)
   Note: DM Sans has NO Cyrillic subset (confirmed via Google Fonts METADATA.pb).
   Cyrillic text falls back to system-ui / sans-serif per the --font-ui stack.
   ========================================================================== */

/* Latin */
@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/dm-sans/dm-sans-latin-variable.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
  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;
}

/* Latin Extended */
@font-face {
  font-family: 'DM Sans';
  src: url('/assets/fonts/dm-sans/dm-sans-latin-ext-variable.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
  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;
}

/* ==========================================================================
   DM Serif Display — Display / Headings font (weight 400 only)
   Note: DM Serif Display has NO Cyrillic subset (confirmed via Google Fonts METADATA.pb).
   Cyrillic text falls back to Georgia / serif per the --font-display stack.
   ========================================================================== */

/* Latin */
@font-face {
  font-family: 'DM Serif Display';
  src: url('/assets/fonts/dm-serif-display/dm-serif-display-latin-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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;
}

/* Latin Extended */
@font-face {
  font-family: 'DM Serif Display';
  src: url('/assets/fonts/dm-serif-display/dm-serif-display-latin-ext-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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 — Editorial / Reading font (Variable, weights 300-600)
   ========================================================================== */

/* Latin */
@font-face {
  font-family: 'Source Serif 4';
  src: url('/assets/fonts/source-serif-4/source-serif-4-latin-variable.woff2') format('woff2');
  font-weight: 300 600;
  font-style: normal;
  font-display: swap;
  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;
}

/* Cyrillic */
@font-face {
  font-family: 'Source Serif 4';
  src: url('/assets/fonts/source-serif-4/source-serif-4-cyrillic-variable.woff2') format('woff2');
  font-weight: 300 600;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

/* ==========================================================================
   JetBrains Mono — Monospace font (weights 400, 500)
   ========================================================================== */

/* Latin — 400 */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/jetbrains-mono/jetbrains-mono-latin-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  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;
}

/* Cyrillic — 400 */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/jetbrains-mono/jetbrains-mono-cyrillic-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

/* Latin — 500 */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/jetbrains-mono/jetbrains-mono-latin-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  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;
}

/* Cyrillic — 500 */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/jetbrains-mono/jetbrains-mono-cyrillic-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}