* {
  font-family: sans-serif;
  box-sizing: border-box;
}
body {
  background-color: #b8c6db;
  background-image: linear-gradient(315deg, #b8c6db 0%, #f5f7fa 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}
.quiz-container {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 0 10px 2px rgba(100, 100, 100, 0.1);
  width: 600px;
  max-width: 95vw;
  overflow: hidden;
}
.quiz-header {
  padding: 4rem;
}
h2 {
  padding: 1rem;
  text-align: center;
  margin: 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
ul li {
  font-size: 1.2rem;
  margin: 1rem 0;
}
ul li label {
  cursor: pointer;
}
button {
  background-color: #8e44ad;
  color: #fff;
  border: none;
  display: block;
  width: 100%;
  cursor: pointer;
  font-size: 1.1rem;
  font-family: inherit;
  padding: 1.3rem;
}
button:hover {
  background-color: #732d91;
}
button:focus {
  outline: none;
  background-color: #5e3370;
}