body {
  background: #020617;
  color: #e5e7eb;
  font-family: system-ui, sans-serif;
  text-align: center;
}

.container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sing-button {
    display: flex;
    justify-content: center;
}

h1 { margin-bottom: 10px; }

select, button {
  padding: 10px 16px;
  font-size: 16px;
  margin: 6px;
  border-radius: 8px;
  border: none;
}

button {
  background: #2563eb;
  color: white;
  cursor: pointer;
}

.play-button {
  background: #e5e7eb;
  color: #020617;
}

button.finish {
  background: #16a34a;
  max-width: 100px;
}

canvas {
  background: #020617;
  border: 1px solid #334155;
  border-radius: 12px;
  margin-top: 15px;
}

#status {
  white-space: pre-line;
  margin-top: 12px;
  font-size: 17px;
}

.range {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  gap: 50px;
  
}