body {
  font-family: Arial, sans-serif;
  background-color: #f3f3f3;
  margin: 0;
  padding: 0;
}
#app {
  max-width: 800px;
  margin: auto;
  padding: 20px;
  background: white;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h2 {
  color: #2d6a4f;
  border-bottom: 2px solid #2d6a4f;
  padding-bottom: 5px;
}
form {
  margin-bottom: 20px;
}
input, select, textarea, button {
  display: block;
  width: 100%;
  margin-top: 5px;
  margin-bottom: 15px;
  padding: 8px;
}
button {
  background-color: #40916c;
  color: white;
  border: none;
  cursor: pointer;
}
button:hover {
  background-color: #2d6a4f;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
table, th, td {
  border: 1px solid #ccc;
}
th, td {
  padding: 8px;
  text-align: left;
}