body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f0f4f0;
  margin: 0;
  padding: 0;
}
.form-container {
  background: #fff;
  width: 90%;
  max-width: 600px;
  margin: 40px auto;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0, 128, 0, 0.3);
}
h2 {
  text-align: center;
  color: #2d6a4f;
}
label {
  display: block;
  margin-top: 10px;
  color: #1b4332;
}
input, textarea {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 6px;
}
button {
  width: 100%;
  padding: 10px;
  background-color: #2d6a4f;
  color: white;
  border: none;
  border-radius: 6px;
  margin-top: 15px;
  font-size: 16px;
}
.success-message {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-size: 28px;
  color: #2d6a4f;
}
.checkmark {
  font-size: 80px;
  color: green;
  margin-bottom: 20px;
}