body {
  font-family: Arial, sans-serif;
  background-color: #f8f9fa;
  color: #333;
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  border: 1px solid #ddd;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}
h2 {
  color: #0056b3;
  text-align: center;
}
input[type="text"], input[type="button"] {
  width: 80%;
  padding: 8px;
  margin-top: 5px;
  border-radius: 5px;
  border: 1px solid #ccc;
}
input[type="button"] {
  width: 15%;
  background-color: #0056b3;
  color: white;
  cursor: pointer;
  font-weight: bold;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}
th, td {
  padding: 10px;
  border: 1px solid #ccc;
  text-align: center;
}
th {
  background-color: #0056b3;
  color: white;
}
tr:nth-child(even) {
  background-color: #f2f2f2;
}
footer {
  max-width: 1200px;
  text-align: right;
  margin-right: auto;
  margin-left: auto;
}