@import url("https://fonts.googleapis.com/css2?family=Lato:wght@400;700;900&display=swap");
body {
  font-family: "Lato", sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 20px;
  background-color: #f5f5f5;
}

.quiz-container,
.results-container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
  color: #333;
  text-align: center;
}

.question {
  margin-bottom: 20px;
  padding: 15px;
  background: #f9f9f9;
  border-radius: 5px;
}

.options {
  margin-left: 20px;
}

.options label {
  display: block;
  margin: 8px 0;
  cursor: pointer;
}

button,
.button {
  display: block;
  width: 100%;
  padding: 10px;
  background: #4caf50;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}

button:hover,
.button:hover {
  background: #45a049;
}

.result-summary {
  margin-bottom: 20px;
}

.pass {
  color: green;
  font-weight: bold;
}

.fail {
  color: red;
  font-weight: bold;
}

.student-info input {
  width: 50%;
  padding: 8px;
  margin: 5px 0 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
}

/* Spinner animation */
.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top-color: #007bff;
  animation: spin 1s ease-in-out infinite;
  margin-right: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}