body {
  font-family: Arial, sans-serif;
  background: #111;
  color: #fff;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
}
label {
  display: block;
  margin-top: 15px;
  font-weight: bold;
}
input, textarea, select {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border-radius: 5px;
  border: none;
}
button {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #0f0;
  color: #000;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.alert {
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
    font-family: Arial, sans-serif;
    text-align: center;
}

.success {
    background-color: #4CAF50;
    color: white;
    border: 1px solid #388E3C;
}

.error {
    background-color: #F44336;
    color: white;
    border: 1px solid #D32F2F;
}