body {
  font-family: 'Segoe UI', sans-serif;
  background: #f9fafb;
  padding: 2rem;
}
h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
input, select, button {
  padding: 0.5rem;
  margin: 0.3rem 0.2rem;
  border-radius: 0.5rem;
  border: 1px solid #ccc;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}
th, td {
  border: 1px solid #ddd;
  padding: 0.6rem;
  text-align: left;
}
th {
  background-color: #f1f1f1;
}