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

body {
  background: linear-gradient(to right, #8e2de2, #4a00e0);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.quiz-container {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  max-width: 500px;
  width: 100%;
  text-align: center;
}

h1 {
  margin-bottom: 1rem;
  color: #4a00e0;
}

#timer {
  font-weight: bold;
  margin-bottom: 1rem;
  color: #ff5722;
}

#questionBox {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

#optionsBox {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 1rem;
}

.option {
  padding: 0.75rem;
  border: none;
  background-color: #eee;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
  font-size: 1rem;
}

.option:hover {
  background-color: #d1c4e9;
}

.option:disabled {
  background-color: #ddd;
  cursor: not-allowed;
}

#resultBox {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #333;
}

#nextBtn {
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  background-color: #4a00e0;
  color: white;
  cursor: pointer;
  display: none;
}

#nextBtn:hover {
  background-color: #3700b3;
}

@media (max-width: 500px) {
  .quiz-container {
    padding: 1rem;
  }

  #questionBox {
    font-size: 1rem;
  }

  .option {
    font-size: 0.9rem;
  }

  #nextBtn {
    width: 100%;
  }
}