body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #fafafa;
  margin-top: 40px;
}

form {
  margin-bottom: 20px;
}

input, button {
  padding: 10px;
  margin: 5px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  background: #333;
  color: white;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #555;
}

table {
  margin: auto;
  border-collapse: collapse;
  width: 60%;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

th, td {
  padding: 10px;
  border-bottom: 1px solid #ddd;
}

th {
  background: #333;
  color: white;
}

tr:nth-child(even) {
  background