@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap");

:root {
  --primary-color: #4caf50;
  --secondary-color: #f9f9f9;
  --text-color: #333;
  --background-color: #ffffff;
  --button-color: #2196f3;
  --button-hover-color: #1976d2;
}

body {
  font-family: "Poppins", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}

#app {
  background: var(--secondary-color);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

label {
  font-weight: bold;
  margin-right: 10px;
}

input[type="number"] {
  width: 80px;
  padding: 8px;
  margin-right: 10px;
  border: 1px solid var(--primary-color);
  border-radius: 4px;
}

button {
  background-color: var(--button-color);
  color: #fff;
  border: none;
  padding: 10px 15px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  margin: 5px;
}

button:hover {
  background-color: var(--button-hover-color);
}

h2,
h3 {
  color: var(--primary-color);
}

ol {
  text-align: left;
  padding-left: 20px;
}

ul {
  list-style: none;
  padding-left: 20px;
}