* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #1a1a1a;
  color: white;
  font-family: Arial, sans-serif;
}

.container {
  max-width: 400px;
  margin: 40px auto;
  padding: 20px;
  background-color: #333;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.form-label {
  display: block;
  margin-bottom: 10px;
}

.form-control {
  width: 100%;
  padding: 10px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
}

.form-button {
  background-color: #4CAF50;
  color: white;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
}

.form-button:hover {
  opacity: 0.8;
}

@media (max-width: 600px) {
  .container {
    max-width: 300px;
  }
}