body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
}

main {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
}

form {
  display: flex;
  flex-direction: column;
}

label {
  margin-bottom: 5px;
}

input,
textarea,
button {
  margin-bottom: 15px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  background-color: #28a745;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background-color: #218838;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th,
td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}

th {
  background-color: #f2f2f2;
}