/*
 * Comprehensive Font Stack for Yoruba Terminology Dictionary
 * 
 * Strategy: Use system fonts with full Unicode support as the primary stack,
 * with Google Fonts as enhancement. This guarantees all Yoruba characters
 * (ẹ, ọ, ṣ, ǹ, ń, and all tone combinations) render correctly on every
 * device and browser without relying on a single font file.
 *
 * Yoruba special characters covered:
 * - Subscript dot: ẹ Ẹ ọ Ọ ṣ Ṣ
 * - Grave accent: è ò ù à ǹ
 * - Acute accent: é ó ú á ń
 * - Combined: ẹ́ ẹ̀ ọ́ ọ̀ and all combinations
 */

/* --- Google Fonts with extended unicode range --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400&family=Noto+Sans:wght@400;500;600&family=Noto+Sans+Mono&display=swap');

/*
 * @font-face fallback using unicode-range
 * This ensures combining diacritics (tone marks) fall back to a system font
 * that supports them if Noto Serif does not render them correctly.
 */
@font-face {
  font-family: 'YorubaFallback';
  src: local('Segoe UI'),
       local('Arial Unicode MS'),
       local('Noto Serif'),
       local('DejaVu Serif'),
       local('FreeSerif');
  unicode-range:
    /* Yoruba subscript-dot letters */
    U+1EB8-1EB9,  /* Ẹ ẹ */
    U+1ECC-1ECD,  /* Ọ ọ */
    U+1E62-1E63,  /* Ṣ ṣ */
    /* n with grave — the problematic ǹ */
    U+01F9,       /* ǹ */
    U+004E,       /* N */
    /* Combining diacritical marks */
    U+0300-U+036F,
    /* Latin Extended Additional (precomposed tone+dot combos) */
    U+1E00-U+1EFF;
}