*{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-khtml-user-select:none;-o-user-select:none}body,h1,p,button{margin:0;padding:0}body{font-family:Tahoma,sans-serif;background-color:#f1f1f1}#quiz-container{background-color:#fff;max-width:90%;margin:-15px auto;padding:5px;box-shadow:0 0 10px rgba(0,0,0,.2);border-radius:10px;text-align:center}h1{font-size:28px;margin-bottom:20px;color:#333}#question-container{margin-bottom:10px}p#question-text{font-size:18px;color:#555;font-family:Tahoma,sans-serif}#options-container{display:flex;flex-direction:column;align-items:center}button{font-size:14px;padding:5px 10px;margin:10px;border:none;border-radius:5px;cursor:pointer;transition:background-color .3s ease}button.option-a{background-color:#228B22;color:#fff;font-weight:bold}button.option-b{background-color:#000080;color:#fff;font-weight:bold}button.option-c{background-color:#800080;color:#fff;font-weight:bold}button.option-d{background-color:#800020;color:#fff;font-weight:bold}button:hover{background-color:none}#result-container{background-color:#fff;max-width:90%;margin:20px auto;padding:20px;box-shadow:0 0 10px rgba(0,0,0,.2);border-radius:10px;text-align:left;display:none}h2{font-size:20px;color:#333;margin-bottom:20px}#result-container h2{margin-top:-10px;font-size:25px;font-family:Verdana,sans-serif}p#score-text{font-size:20px;font-weight:bold;color:#e74c3c;margin-bottom:10px;font-family:Arial,sans-serif}p#remarks{font-size:19px;font-weight:none;margin-bottom:30px;font-family:Arial,sans-serif}p#wrong-answers-text{font-size:18px}p#congratulations{font-size:22px;font-weight:bold;color:#00A86B;margin-bottom:20px;margin-top:30px}p#correct-answers-text{font-size:16px;font-weight:bold;margin-top:10px}div#correct-answers-list{font-size:16px;margin-top:10px}.question-number{font-weight:bold}.wrong-question-number{font-weight:bold}@media screen and (max-width:600px){body{font-size:14px}#quiz-container{max-width:90%}h1{font-size:18px}#options-container button{font-size:14px}#result-container{max-width:90%}}button#submit-quiz-button{background-color:#4CAF50;color:#FFFFFF;display:none;margin:0 auto;font-weight:bold;font-size:20px;font-family:Roboto,sans-serif}.wrong-answers-list{font-size:17px}.feedback-icon{font-size:38px;margin-top:10px}#correct-feedback{color:#00A86B}#incorrect-feedback{color:#e74c3c}button[disabled]{opacity:.5;cursor:not-allowed}button.selected-option{background-color:#000;color:#FFD700;font-weight:bold}#try-again-container{text-align:center;margin:20px auto}a.custom-button{background-color:#FFA500;color:#1E2A4A;padding:10px 20px;border:none;border-radius:5px;cursor:pointer;text-decoration:none;font-size:18px}a.custom-button:hover{background-color:#FFA500;color:#1E2A4A;text-decoration:none}#quick-revision-container{text-align:center;margin-top:35px}#quick-revision-container a.custom-button{background-color:#2196F3;color:#FFFFFF;padding:7px 10px;border:none;border-radius:15px;cursor:pointer;text-decoration:none;font-size:18px;font-weight:bold}#quick-revision-container a.custom-button:hover{background-color:none}#message-container{background-color:#FFFFFF;max-width:90%;margin:30px auto;padding:5px 30px;border-radius:10px;text-align:center;margin-top:30px;margin-bottom:20px}.math-container{font-size:18px}button:focus{outline:2px solid #2196F3;outline-offset:2px}body,h1,p,button{color:#333}button.option-a:focus,button.option-b:focus,button.option-c:focus,button.option-d:focus{outline-color:#000}#quiz-title{text-decoration:underline;margin-top:2px}