body {
  font-family: Arial, Helvetica, sans-serif, sans-serif;
  background: linear-gradient(135deg, #082fdb, #8416f3);
  margin: 0;
  padding: 0;
  color: white;
}

.container {
  max-width: 400px;
  margin: 50px auto;
  text-align: center;
}

.card {
  background: rgba(237, 79, 79, 0.12);
  padding: 20px;
  margin-top: 20px;
  border-radius: 12px;
}

input {
  width: 80%;
  padding: 10px;
  margin: 10px ;
  border: none;
  border-radius: 6px;
}

button {
  padding: 10px 20px;
  border: none;
  background: black;
  color: white;
  cursor: pointer;
  border-radius: 6px;
}

button:hover {
  background: #0be666;
}

.result-box {
  min-height: 80px;
}

canvas {
  margin-top: 10px;
  width: 100%;
  height: 300px;
}