body {
  font-family: sans-serif;
  background: #f0f0f0;
  margin: 0;
}

.container {
  max-width: 500px;
  margin: auto;
  padding: 20px;
}

h1 {
  text-align: center;
}

.card {
  background: white;
  padding: 15px;
  margin: 15px 0;
  border-radius: 10px;
}

input, textarea {
  width: 100%;
  padding: 10px;
  margin: 5px 0;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  width: 100%;
  padding: 12px;
  background: green;
  color: white;
  border: none;
  border-radius: 5px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  border: 1px solid #ccc;
  padding: 5px;
}