body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #f6f7f7, #5ca6fa);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background-color: #fff;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  text-align: center;
  width: 280px;
}

h2 {
  color: #0f0f0f;
  margin-bottom: 20px;
}

input {
  width: 100px;
  padding: 10px;
  margin: 5px;
  border-radius: 10px;
  border: 2px solid #ddd;
  text-align: center;
  font-size: 16px;
}

button {
  background-color: #0a0a0a;
  border: none;
  color: white;
  padding: 10px 15px;
  margin: 5px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.2s;
}

button:hover {
  background-color: #0072ff;
  transform: scale(1.1);
}

#hasil {
  margin-top: 20px;
  font-weight: bold;
  color: #333;
}