body {
  font-family: sans-serif;
  background: #f7f7f7;
  color: #222;
  text-align: center;
  margin: 0;
  padding: 0;
}

h1 { margin-top: 20px; }

.controls {
  margin: 20px;
  display: flex;
  justify-content: center;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

button {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: #2d6cdf;
  color: #fff;
}
button:hover { background: #1f54b0; }

select {
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 1rem;
}

.phase {
  font-size: 0.95rem;
  background: #eef4ff;
  color: #1f54b0;
  padding: 6px 10px;
  border-radius: 6px;
}

#machine {
  margin: 20px auto;
  width: 260px;
  height: 480px;
}

.charts {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 20px;
}

canvas {
  max-width: 420px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

footer {
  margin-top: 40px;
  padding: 16px;
  background: #eee;
  font-size: 0.9rem;
}