form {
  margin: 0 auto;
  width: 400px;
  background: #1a1a1a;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

label {
  display: block;
  margin-top: 20px;
  letter-spacing: 1px;
  color: #f6f6f6;
  font-weight: bold;
}

input, textarea {
  width: 90%;
  height: 35px;
  background: #2c2c54;
  border: 2px solid #f6f6f6;
  padding: 10px;
  margin-top: 5px;
  font-size: 16px;
  color: #ffffff;
  border-radius: 5px;
  transition: border-color 0.3s;
}

input:focus, textarea:focus {
  border-color: #3498db;
}

textarea {
  height: 150px;
}

#submit {
  width: 100%;
  height: 45px;
  border: none;
  margin-top: 20px;
  cursor: pointer;
  background: #3498db;
  color: #ffffff;
  font-size: 18px;
  border-radius: 5px;
  transition: background 0.3s;
}

#submit:hover {
  background: #2980b9;
}