.pdf-viewer embed{width:100%;height:100%;border:none}.zoomable-container{width:100%;height:100%;overflow:auto;-webkit-overflow-scrolling:touch}.zoomable-container img{display:block;width:100%;height:auto;min-width:100%;max-width:none;margin-bottom:10px}.fullscreen-overlay.active{display:flex;flex-direction:column}.fullscreen-content embed,.fullscreen-content .zoomable-container{width:100%;height:100%}.question-text{background-color:#fff9e6;border:2px solid #d4a017;padding:15px;margin:20px 0;border-radius:4px}.option{background-color:white;border:2px solid #d4a017;padding:15px;margin:10px 0;border-radius:4px;cursor:pointer;transition:background-color .2s;display:flex;align-items:flex-start}.option:hover{background-color:#fffbf0}.option input[type=radio]{margin-right:15px;margin-top:3px;width:18px;height:18px;cursor:pointer}.option.selected{background-color:#fff4cc;border-color:#b8860b}.submit-button{background-color:#4caf50;color:white}.submit-button:hover:not(:disabled){background-color:#45a049}.marks-badge{display:inline-block;background-color:#d4a017;color:white;padding:3px 8px;border-radius:3px;font-size:12px;margin-left:10px}.results{padding:30px}.results h2{color:#2c2c2c;margin-bottom:20px;text-align:center;font-size:32px}.score{font-size:18px;color:#2c2c2c;margin:20px 0;text-align:center;padding:20px;background-color:#f0f0f0;border-radius:8px}.feedback-section{margin-top:30px}.question-feedback{background-color:white;border:2px solid #d4a017;border-radius:8px;padding:20px;margin-bottom:20px}.question-feedback-header{font-style:italic;color:#666;margin-bottom:15px;font-size:14px}.feedback-row{margin:8px 0;font-size:14px}.feedback-row strong{display:inline-block;min-width:150px}.feedback-status{display:inline-block;padding:4px 12px;border-radius:4px;font-size:12px;font-weight:700}.feedback-status.correct{background-color:#4caf50;color:white}.feedback-status.incorrect{background-color:#f44336;color:white}.feedback-status.unanswered{background-color:#999;color:white}.start-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 40px;text-align:center}.start-screen h2{font-size:28px;margin-bottom:20px;color:#2c2c2c}.start-screen p{font-size:16px;margin-bottom:30px;color:#666;max-width:600px;line-height:1.6}.start-button{background-color:#4caf50;color:white;border:none;padding:18px 40px;font-size:18px;font-weight:700;border-radius:8px;cursor:pointer;transition:background-color .3s}.start-button:hover{background-color:#45a049}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 40px;text-align:center}.loading-screen h2{font-size:24px;color:#d4a017;margin-bottom:20px}.loading-spinner{border:4px solid #f3f3f3;border-top:4px solid #d4a017;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite}@media (max-width:768px){.question-text{padding:12px;font-size:14px}.option{padding:12px;font-size:14px}.option input[type=radio]{width:16px;height:16px}.marks-badge{font-size:10px;padding:2px 6px}.start-screen{padding:40px 20px}.start-screen h2{font-size:22px}.start-screen p{font-size:14px}.start-button{padding:14px 30px;font-size:16px}.results h2{font-size:24px}.score{font-size:16px;padding:15px}.question-feedback{padding:15px}.question-feedback-header{font-size:13px}.feedback-row{font-size:13px}.feedback-row strong{min-width:120px}}@media (max-width:480px){.question-text{padding:10px;font-size:13px}.option{padding:10px;font-size:13px}.start-screen{padding:30px 15px}.start-screen h2{font-size:20px}.start-screen p{font-size:13px}.results{padding:20px}.results h2{font-size:20px}.score{font-size:14px}.question-feedback{padding:12px}}.orientation-warning.show{display:flex}