body {
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  padding: 2rem;
}

h2 {
  text-align: center;
  color: #2b2b2b;
}

table {
  width: 100%;
  max-width: 800px;
  margin: 2rem auto;
  border-collapse: collapse;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  background: white;
  border-radius: 10px;
  overflow: hidden;
}

th, td {
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid #eee;
}

th {
  background-color: #4CAF50;
  color: white;
}

tr:nth-child(even) {
  background-color: #f2f2f2;
}

td:first-child {
  font-weight: bold;
  background-color: #f7f7f7;
}

@media (max-width: 600px) {
  table, thead, tbody, th, td, tr {
    display: block;
  }

  th {
    display: none;
  }

  td {
    position: relative;
    padding-left: 50%;
  }

  td::before {
    content: attr(data-label);
    position: absolute;
    left: 0;
    top: 0;
    padding: 1rem;
    font-weight: bold;
    color: #333;
    white-space: nowrap;
  }
}