body{
background: linear-gradient(to right, #00c6ff, #0072ff);
      font-family: 'Segoe UI', sans-serif;
      color: #333;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .quiz-box {
      background: #ffffff;
      border-radius: 20px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
      padding: 40px 30px;
      max-width: 600px;
      width: 100%;
      animation: fadeIn 0.5s ease-in-out;
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: scale(0.95); }
      to { opacity: 1; transform: scale(1); }
    }
    .timer-ring {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      border: 8px solid #007bff;
      color: #007bff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin: 0 auto 25px;
      background: #f0f8ff;
    }
    #question {
      font-size: 1.2rem;
      margin-bottom: 25px;
    }
    .option {
      background: #f1f1f1;
      padding: 15px 20px;
      margin: 10px 0;
      border-radius: 10px;
      cursor: pointer;
      transition: background 0.3s ease, transform 0.2s ease;
    }
    .option:hover {
      background: #e0f3ff;
      transform: translateY(-2px);
    }
    .option.selected {
      background: #cce5ff;
      border-left: 5px solid #007bff;
    }
    .next-btn {
      margin-top: 30px;
      width: 100%;
      padding: 12px;
      font-size: 1rem;
      border-radius: 8px;
      background-color: green;
      color: white;
      font-weight: bolder;
    }