body {
  font-family: Arial, sans-serif;
  background: #f4f6f9;
  margin: 0;
  padding: 20px;
}

h2 {
  color: #333;
}

button {
  padding: 8px 15px;
  margin: 5px;
  border: none;
  background: #4CAF50;
  color: white;
  cursor: pointer;
  border-radius: 5px;
}

button:hover {
  background: #45a049;
}

input {
  padding: 8px;
  margin: 5px 0;
  width: 250px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.container {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
  max-width: 600px;
}

.card {
  background: #fff;
  padding: 10px;
  margin: 5px 0;
  border-left: 5px solid #4CAF50;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}