body {
  font-family: sans-serif;
  margin: 20px;
}
form {
  margin-bottom: 30px;
}
canvas {
  max-width: 600px;
}
.tab-buttons {
  margin: 20px 0;
}
.tab-buttons button {
  margin-right: 10px;
  padding: 10px 20px;
  font-size: 14px;
}
.tab-buttons button.active {
  background-color: #007BFF;
  color: white;
}
table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 20px;
}
th, td {
  border: 1px solid #ccc;
  padding: 8px;
}
th {
  background-color: #f2f2f2;
}
.deck-image {
  width: 800px;
  max-width: 90%;
  border-radius: 8px;
  cursor: pointer;
}