body {
  font-family: Arial, sans-serif;
  background: #f2f2f2;
  margin: 0;
  padding: 0;
  color: #333;
}
.container {
  width: 90%;
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}
header {
  background-color: #004466;
  color: white;
  padding: 20px;
  text-align: center;
  border-radius: 8px;
}
h1, h2 {
  margin: 0 0 15px;
}
form, table {
  margin-top: 20px;
}
input, select, button {
  padding: 10px;
  margin: 5px;
}
button {
  background-color: #004466;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
button:hover {
  background-color: #006699;
}
table {
  width: 100%;
  border-collapse: collapse;
}
table th, table td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: center;
}
.success { color: green; }
.mismatch { color: red; }