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

body {
  font-family: Arial, sans-serif;
  background-color:  rgb(22, 57, 54);;
  padding: 20px;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
  color: white;
}

div {
  margin-bottom: 20px;
  text-align: center;
}

input[type="text"] {
  padding: 10px;
  width: 200px;
  margin-right: 10px;
  border-radius: 4px;
  border: 1px solid #ccc;
}

button {
  padding: 10px 15px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #218838;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  text-align: left;
}

table, th, td {
  border: 1px solid #ddd;
}

th, td {
  padding: 12px;
}

th {
  background-color: #f4f4f4;
}

canvas {
  margin-top: 40px;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}