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

header, footer {
  background-color: #004d00;
  color: white;
  text-align: center;
  padding: 1em;
}

main {
  max-width: 600px;
  margin: 2em auto;
  background: white;
  padding: 2em;
  border-radius: 8px;
}

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

fieldset {
  border: 1px solid #ccc;
  margin-bottom: 1.5em;
  padding: 1em;
  border-radius: 4px;
}

label {
  margin-top: 1em;
}

input, select {
  width: 100%;
  padding: 0.5em;
  margin-top: 0.2em;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  margin-top: 1.5em;
  padding: 0.8em;
  background-color: #008000;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #006600;
}