html, body {
  margin: 0;
  padding: 0;
  background: #0b0e17;
  overflow: hidden;
  font-family: monospace;
}

canvas {
  display: block;
}

#hud {
  position: fixed;
  top: 16px;
  left: 16px;
  color: #e2e8f0;
  font-size: 18px;
  display: flex;
  gap: 20px;
}


:root{
  --bg:#0b0e17;
  --text:#e2e8f0;
  --dim:#94a3b8;
}

*{ box-sizing:border-box; }

html,body{
  margin:0;
  padding:0;
  width:100%;
  height:100%;
  overflow:hidden;
  background:var(--bg);
  color:var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  cursor:none;
}

canvas{
  display:block;
  width:100vw;
  height:100vh;
}

/* HUD (opcjonalnie, jeśli masz w HTML #hud z #speed i #score) */
#hud{
  position:fixed;
  top:16px;
  left:16px;
  display:flex;
  gap:18px;
  align-items:baseline;
  z-index:10;
  padding:10px 14px;
  border:1px solid rgba(148,163,184,0.25);
  border-radius:12px;
  background: rgba(17,24,39,0.55);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.45);
}

#speed{
  font-weight:700;
  letter-spacing:0.4px;
  color:var(--dim);
}

#score{
  font-weight:800;
  font-size:22px;
  letter-spacing:0.5px;
}