body {
  font-family: sans-serif;
  background: #0f1115;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: #1c1f26;
  padding: 30px;
  border-radius: 10px;
  max-width: 400px;
  width: 100%;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
  text-align: center;
}

input[type="number"] {
  width: 100%;
  padding: 10px;
  margin: 15px 0;
  border: none;
  border-radius: 5px;
  font-size: 16px;
}

button {
  width: 100%;
  padding: 10px;
  background-color: #00d084;
  border: none;
  border-radius: 5px;
  color: #000;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background-color: #00b36e;
}