/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background: #06217c;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  width: 90%;
  max-width: 800px;
  text-align: center;
  padding: 20px;
}

#quiz-section h2 {
  font-size: 2rem;
  margin-bottom: 15px;
  color: #ffffff;
}

.category-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 15px;
  margin-top: 25px;
}

.category-section a button {
  background: #3498db;
  border: 2px solid #3498db;
  color: #fff;
  padding: 12px 18px;
  font-size: 1rem;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
}

.category-section a button:hover {
  background: #06217c;
  color: #fff;
  transform: scale(1.05);
}

footer {
  margin-top: 40px;
  font-size: 0.9rem;
  color: #3498db;
}