body {
  font-family: Arial, sans-serif;
  background: #f7f7f7;
  margin: 0;
  padding: 0;
}
#app {
  max-width: 800px;
  margin: 40px auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  padding: 32px;
}
.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}
.table th, .table td {
  border: 1px solid #ddd;
  padding: 8px 12px;
  text-align: center;
}
.table th {
  background: #f0f0f0;
}
select {
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid #ccc;
}