/*
 * Self-hosted fonts for itsallrelative.co.
 *
 * Three variable families cover the whole site:
 *   Inter         — UI text (weights 100..900 in one file per subset)
 *   Roboto Serif  — display / hero copy (weights 300..500, italic + normal)
 *   Roboto Flex   — tabular/data panels on the Ingrid page (300..600)
 *
 * Each family ships latin + latin-ext subsets. Browsers pick the right
 * one via unicode-range; no JS logic required.
 *
 * font-display: swap means the browser renders immediately in the system
 * fallback (system-ui / Georgia), then swaps to the real font once the
 * woff2 has loaded. We preload the latin subsets in each page's <head>
 * to keep the swap moment as short as possible.
 *
 * Files served from /fonts/ (Firebase Hosting). firebase.json caches
 * them with max-age=1y immutable.
 */

/* ── Inter ──────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  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;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  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;
}

/* ── Roboto Serif — upright ────────────────────────────────────────── */
@font-face {
  font-family: 'Roboto Serif';
  font-style: normal;
  font-weight: 300 500;
  font-display: swap;
  src: url('/fonts/roboto-serif-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;
}
@font-face {
  font-family: 'Roboto Serif';
  font-style: normal;
  font-weight: 300 500;
  font-display: swap;
  src: url('/fonts/roboto-serif-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;
}

/* ── Roboto Serif — italic (used in the landing h1 <em>) ──────────── */
@font-face {
  font-family: 'Roboto Serif';
  font-style: italic;
  font-weight: 300 500;
  font-display: swap;
  src: url('/fonts/roboto-serif-italic-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;
}
@font-face {
  font-family: 'Roboto Serif';
  font-style: italic;
  font-weight: 300 500;
  font-display: swap;
  src: url('/fonts/roboto-serif-italic-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;
}

/* ── Roboto Flex (Ingrid data panels) ─────────────────────────────── */
@font-face {
  font-family: 'Roboto Flex';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('/fonts/roboto-flex-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;
}
@font-face {
  font-family: 'Roboto Flex';
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url('/fonts/roboto-flex-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;
}
