/**
 * Inter Font - Latin Subset for PWA Offline Support
 * PWA-FONT-001 FIX: Self-hosted optimized fonts
 * 
 * Coverage: Latin characters (English, Spanish, French, Vietnamese, Indonesian, etc.)
 * Non-Latin scripts (Hindi, Telugu, Tamil, Arabic, Thai) use system fonts.
 * 
 * Size: ~121 KB total (optimized from ~557 KB full Unicode)
 * 
 * @version 2.0.0 - Latin subset optimization
 * @date 2025-12-23
 */

/* Inter Light - 300 */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('/Inter-Light-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 Regular - 400 */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/Inter-Regular-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 Medium - 500 */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/Inter-Medium-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 SemiBold - 600 */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/Inter-SemiBold-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 Bold - 700 */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/Inter-Bold-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;
}

/**
 * System Font Stack for Multilingual Support
 * 
 * This stack provides native font support for non-Latin scripts:
 * - Devanagari (Hindi, Marathi): Noto Sans Devanagari, Mangal
 * - Telugu: Noto Sans Telugu, Gautami
 * - Tamil: Noto Sans Tamil, Latha
 * - Kannada: Noto Sans Kannada, Tunga
 * - Malayalam: Noto Sans Malayalam, Kartika
 * - Bengali: Noto Sans Bengali, Vrinda
 * - Gujarati: Noto Sans Gujarati, Shruti
 * - Arabic: Noto Sans Arabic, Segoe UI
 * - Thai: Noto Sans Thai, Tahoma
 */
:root {
  --font-family-inter: 'Inter', 
    /* System UI fonts */
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    /* Indic scripts fallback */
    'Noto Sans Devanagari', 'Noto Sans Telugu', 'Noto Sans Tamil', 
    'Noto Sans Kannada', 'Noto Sans Malayalam', 'Noto Sans Bengali',
    'Noto Sans Gujarati', 'Noto Sans Odia',
    /* Arabic/RTL fallback */
    'Noto Sans Arabic',
    /* ASEAN fallback */
    'Noto Sans Thai',
    /* Generic fallback */
    sans-serif,
    /* Emoji support */
    'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}