/**
 * SELF-HOSTED FONTS
 * 
 * Fonts are self-hosted for:
 * - Security: No external CDN dependency
 * - Performance: Faster loading (no DNS lookup, same connection)
 * - Privacy: No requests to Google servers
 * 
 * Font weights included (only what's actually used):
 * - Inter: 400, 500, 600, 700
 * - Roboto: 400, 500, 600, 700
 * - Montserrat: 400, 500, 600, 700
 * - Manrope: 400, 500, 600, 700
 * - IBM Plex Sans: 400, 500, 600, 700
 * 
 * To add fonts:
 * 1. Install @fontsource package: npm install --save-dev @fontsource/[font-name]
 * 2. Copy .woff2 files from node_modules/@fontsource/[font-name]/files/ to public/fonts/[font-name]/
 * 3. Add @font-face declaration below
 */

/* ===== INTER FONT ===== */
/* Primary font: Partners, Statistics, Catalog, About, Battery Manual, Brigade Cards */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/inter/inter-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/inter/inter-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/inter/inter-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/inter/inter-700.woff2') format('woff2');
}

/* ===== ROBOTO FONT ===== */
/* Secondary font: Footer, Hero, Contact Form, Product Pages, Buttons */

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/roboto/roboto-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/roboto/roboto-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/roboto/roboto-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/roboto/roboto-700.woff2') format('woff2');
}

/* ===== MONTSERRAT FONT ===== */
/* Specialty font: Battery Table only */

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/montserrat/montserrat-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/montserrat/montserrat-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/montserrat/montserrat-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/montserrat/montserrat-700.woff2') format('woff2');
}

/* ===== MANROPE FONT ===== */
/* Used in: ProductPage (specs, test results), BatteryTable (headers) */

@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/manrope/manrope-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/manrope/manrope-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/manrope/manrope-600.woff2') format('woff2');
}

@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/manrope/manrope-700.woff2') format('woff2');
}

/* ===== IBM PLEX SANS FONT ===== */
/* Used in: BatteryProductPage (description) */

@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/ibm-plex-sans/ibm-plex-sans-400.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/ibm-plex-sans/ibm-plex-sans-500.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/ibm-plex-sans/ibm-plex-sans-600.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/ibm-plex-sans/ibm-plex-sans-700.woff2') format('woff2');
}