// Sparkline pequeño para tablas / cards
function Sparkline({ values, color, width = 80, height = 28, strokeWidth = 1.5, fill = true }) {
  if (!values || values.length < 2) return null;
  const min = Math.min(...values);
  const max = Math.max(...values);
  const range = max - min || 1;
  const stepX = width / (values.length - 1);
  const pts = values.map((v, i) => [i * stepX, height - ((v - min) / range) * (height - 4) - 2]);
  const d = pts.map((p, i) => `${i === 0 ? 'M' : 'L'} ${p[0].toFixed(1)} ${p[1].toFixed(1)}`).join(' ');
  const dFill = d + ` L ${width} ${height} L 0 ${height} Z`;
  return (
    <svg width={width} height={height} viewBox={`0 0 ${width} ${height}`} style={{ display: 'block', overflow: 'visible' }}>
      {fill && (
        <path d={dFill} fill={color} fillOpacity={0.10} />
      )}
      <path d={d} fill="none" stroke={color} strokeWidth={strokeWidth} strokeLinejoin="round" strokeLinecap="round" />
    </svg>
  );
}

window.Sparkline = Sparkline;