body {
  background-color: #0a0a0a;
  color: #fff;
  font-family: 'Arial', sans-serif;
  text-align: center;
  padding: 30px;
}

.container {
  max-width: 500px;
  margin: auto;
  background-color: #1c1c1c;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px #f00;
}

input {
  padding: 10px;
  width: 80%;
  margin: 10px 0;
  border: none;
  border-radius: 5px;
}

button {
  background-color: crimson;
  color: white;
  padding: 10px 25px;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background-color: #e60000;
}

.circle {
  margin: 20px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: #333;
  border: 8px solid #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: bold;
  color: crimson;
}

.couple {
  font-size: 40px;
  margin: 10px 0;
}