.quiz-container{color:#fff;background:linear-gradient(135deg,#6a11cb 0%,#2575fc 100%);border-radius:20px;max-width:800px;margin:2rem auto;padding:2rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;box-shadow:0 10px 30px #0003}.quiz-header{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.question-count{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff26;border-radius:50px;padding:.5rem 1rem;font-weight:600}.timer{background:#ff6b6b;border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;font-size:1.5rem;font-weight:700;display:flex;box-shadow:0 4px 10px #ff6b6b66}.question-section{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-align:center;background:#ffffff1a;border-radius:15px;justify-content:center;align-items:center;min-height:150px;margin-bottom:2rem;padding:2rem;display:flex}.question-text{font-size:1.8rem;font-weight:600;line-height:1.4}.options-section{grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:2rem;display:grid}.option-button{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);text-align:center;background:#ffffff26;border:none;border-radius:12px;padding:1.2rem;font-size:1.1rem;transition:all .3s}.option-button:hover{background:#ffffff40;transform:translateY(-3px)}.option-button.selected{background:#fff6;transform:scale(1.03);box-shadow:0 5px 15px #0000001a}.option-button.correct{color:#fff;background:linear-gradient(90deg,#00b09b,#96c93d)}.option-button.incorrect{color:#fff;background:linear-gradient(90deg,#ff416c,#ff4b2b)}.feedback{text-align:center;justify-content:center;align-items:center;min-height:60px;margin-bottom:1.5rem;font-size:1.4rem;font-weight:700;transition:all .3s;display:flex}.feedback.correct{color:#96c93d}.feedback.incorrect{color:#ff4b2b}.next-button{color:#2575fc;cursor:pointer;background:#fff;border:none;border-radius:50px;margin:0 auto;padding:1rem 3rem;font-size:1.2rem;font-weight:700;transition:all .3s;display:block;box-shadow:0 4px 15px #0003}.next-button:hover{transform:translateY(-3px);box-shadow:0 6px 20px #00000040}.next-button:active{transform:translateY(1px)}.score-section{text-align:center;padding:3rem}.score-title{margin-bottom:1.5rem;font-size:2.5rem}.score-detail{color:#ffeb3b;text-shadow:0 3px 10px #0003;margin:2rem 0;font-size:5rem;font-weight:700}.restart-button{color:#333;cursor:pointer;background:#ffeb3b;border:none;border-radius:50px;padding:1rem 3rem;font-size:1.2rem;font-weight:700;transition:all .3s;box-shadow:0 4px 15px #0003}.restart-button:hover{transform:scale(1.05);box-shadow:0 6px 20px #00000040}.progress-container{background:#fff3;border-radius:5px;height:10px;margin:2rem 0;overflow:hidden}.progress-bar{background:#ffeb3b;border-radius:5px;height:100%;transition:width .4s}@media (max-width:768px){.options-section{grid-template-columns:1fr}.quiz-container{margin:1rem;padding:1.5rem}.question-text{font-size:1.4rem}}