* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f8f9fa;
}

.twist {
  background-color: #e9ecef;
  padding: 2px 6px;
  border-radius: 4px;
  user-select: none;
}

.twist.revealed {
  background-color: #fff3cd;
  color: #856404;
}