@charset "UTF-8";

body {
  min-height: 100vh;
  margin: 0;
  padding: 24px;
  box-sizing: border-box;
  display: grid;
  place-items: center;
  background-color: #f7f7f7;
  font-family: sans-serif;
  transition: background-color 0.3s ease;
}

body.daikichi {
  background-color: #ffb6c1;
}

body.chukichi {
  background-color: #b9e6c6;
}

body.kichi {
  background-color: #ffe48f;
}

main {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  text-align: center;
}

h1 {
  margin-bottom: 24px;
  font-size: 2rem;
}

button {
  padding: 12px 20px;
  border: 0;
  border-radius: 8px;
  background-color: #333;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}

#resultDisplay {
  margin-top: 24px;
  font-size: 2.5rem;
}