/* ============================================================
   RESEARCH BRAND — FONT LOADING
   Strategy: Google Fonts CDN → bundled local woff2 fallback.

   Usage:
     <link rel="stylesheet" href="research-brand-fonts.css">
     <link rel="stylesheet" href="research-brand.css">

   Each @font-face tries the CDN URL first (fast, globally cached),
   then falls back to the local woff2 in fonts/.  If both fail,
   research-brand.css has system fallback stacks (Georgia, etc.).

   For PPTX / offline presentations, install the OTF/TTF versions
   on the system. Download from Google Fonts:
     - https://fonts.google.com/specimen/Source+Serif+4
     - https://fonts.google.com/specimen/Source+Sans+3
     - https://fonts.google.com/specimen/IBM+Plex+Mono
   ============================================================ */

/* --- Source Serif 4 --- */
/* latin-ext */
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFK2_tTDB4M7-auWDN0ahZJW1gewtu_WpzEpMvsfA.woff2) format("woff2"),
       url(fonts/source-serif-4-italic-w200-900-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;
}

/* latin */
@font-face {
  font-family: 'Source Serif 4';
  font-style: italic;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFK2_tTDB4M7-auWDN0ahZJW1gewtW_WpzEpMs.woff2) format("woff2"),
       url(fonts/source-serif-4-italic-w200-900-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;
}

/* latin-ext */
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gV8te1Xb7GlMo.woff2) format("woff2"),
       url(fonts/source-serif-4-normal-w200-900-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;
}

/* latin */
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFI2_tTDB4M7-auWDN0ahZJW1gb8te1Xb7G.woff2) format("woff2"),
       url(fonts/source-serif-4-normal-w200-900-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;
}

/* --- Source Sans 3 --- */
/* latin-ext */
@font-face {
  font-family: 'Source Sans 3';
  font-style: italic;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourcesans3/v19/nwpMtKy2OAdR1K-IwhWudF-R3woqaeLYxnV18JRx.woff2) format("woff2"),
       url(fonts/source-sans-3-italic-w200-900-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;
}

/* latin */
@font-face {
  font-family: 'Source Sans 3';
  font-style: italic;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourcesans3/v19/nwpMtKy2OAdR1K-IwhWudF-R3woqZ-LYxnV18A.woff2) format("woff2"),
       url(fonts/source-sans-3-italic-w200-900-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;
}

/* latin-ext */
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourcesans3/v19/nwpStKy2OAdR1K-IwhWudF-R3wEaZejf5HdF8Q.woff2) format("woff2"),
       url(fonts/source-sans-3-normal-w200-900-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;
}

/* latin */
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/sourcesans3/v19/nwpStKy2OAdR1K-IwhWudF-R3w8aZejf5Hc.woff2) format("woff2"),
       url(fonts/source-sans-3-normal-w200-900-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;
}

/* --- IBM Plex Mono --- */
/* latin-ext */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F6pfjptAgt5VM-kVkqdyU8n1ioa23dgregdFOFh.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-italic-w400-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;
}

/* latin */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F6pfjptAgt5VM-kVkqdyU8n1ioa1XdgregdFA.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-italic-w400-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;
}

/* latin-ext */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F63fjptAgt5VM-kVkqdyU8n1iEq131nj-otFQ.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-normal-w400-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;
}

/* latin */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F63fjptAgt5VM-kVkqdyU8n1i8q131nj-o.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-normal-w400-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;
}

/* latin-ext */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F6qfjptAgt5VM-kVkqdyU8n3twJwl5FgsAXHNlYzg.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-normal-w500-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;
}

/* latin */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F6qfjptAgt5VM-kVkqdyU8n3twJwlBFgsAXHNk.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-normal-w500-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;
}

/* latin-ext */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F6qfjptAgt5VM-kVkqdyU8n3vAOwl5FgsAXHNlYzg.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-normal-w600-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;
}

/* latin */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/ibmplexmono/v20/-F6qfjptAgt5VM-kVkqdyU8n3vAOwlBFgsAXHNk.woff2) format("woff2"),
       url(fonts/ibm-plex-mono-normal-w600-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;
}