:root{--bg:#000;--face:#fff;--ink:#000;--red:#e2001a;--txt:#8b949e}
  [data-bg="light"]{--bg:#f4f6f9;--txt:#59636e}
  [data-style="eink"]{--bg:#fff;--txt:#000}
  *{box-sizing:border-box} html,body{margin:0;height:100%;background:var(--bg);overflow:hidden;user-select:none;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
  .wrap{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2vmin}
  svg{width:min(92vmin,100%);height:auto;display:block}
  .cap{color:var(--txt);font-size:3vmin;font-weight:600;letter-spacing:.04em}