#loading-overlay[data-v-f4adcdfb]{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#2c2c2cb3;display:flex;justify-content:center;align-items:center;z-index:2000;transition:opacity .3s ease}.spinner[data-v-f4adcdfb]{width:50px;height:50px;border:5px solid #666;border-top-color:var(--primary-color);border-radius:50%;animation:spin-f4adcdfb 1s linear infinite}@keyframes spin-f4adcdfb{to{transform:rotate(360deg)}}#image-viewer-container[data-v-40164572]{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000d9;display:flex;justify-content:center;align-items:center;z-index:1000;cursor:pointer;padding:20px}#fullscreen-image[data-v-40164572]{max-width:95vw;max-height:95vh;object-fit:contain;cursor:default;box-shadow:0 0 30px #fff3}.viewer-close-btn[data-v-40164572]{position:absolute;top:15px;right:35px;color:#fff;font-size:45px;font-weight:700;cursor:pointer;transition:color .2s ease-in-out}.viewer-close-btn[data-v-40164572]:hover{color:#bbb}.options-disabled[data-v-785c1939]{pointer-events:none}.answer-image[data-v-785c1939]{max-width:100%;cursor:pointer;background:#fff;padding:5px;border-radius:5px}.login-container[data-v-6f02f5a8]{background-color:#383838;padding:30px;border-radius:8px;box-shadow:0 4px 15px #00000080;width:300px;text-align:center;margin:10vh auto}h1[data-v-6f02f5a8]{margin-bottom:20px}input[data-v-6f02f5a8]{width:100%;padding:10px;margin-bottom:15px;border:1px solid #555;border-radius:5px;background-color:#444;color:#f0f0f0;box-sizing:border-box}button[data-v-6f02f5a8]{width:100%;padding:10px;border:none;border-radius:5px;background-color:#007bff;color:#fff;font-size:1em;cursor:pointer}.error[data-v-6f02f5a8]{color:#dc3545;margin-top:15px}:root{--bg-color: #2c2c2c;--card-color: #383838;--text-color: #f0f0f0;--primary-color: #007bff;--border-color: #555;--correct-color: #28a745;--incorrect-color: #dc3545;--selected-color: #4a5a6e}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-color);min-height:100vh;margin:0;padding:10px;box-sizing:border-box}#app{width:100%;display:flex;justify-content:center;align-items:flex-start}#app-container{width:100%;max-width:800px;background-color:var(--card-color);border-radius:8px;box-shadow:0 4px 15px #0003;overflow:hidden}.hidden{display:none!important}.quiz-header{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;background-color:#0003;border-bottom:1px solid var(--border-color)}.quiz-header h2{font-size:1.1em}#question-area{padding:20px;line-height:1.6}#paper-info-screen .paper-info-content{padding:20px}#paper-details-container h2{font-size:1.5em;margin-bottom:15px}#paper-details-container p{margin-bottom:10px;line-height:1.6}.paper-info-actions{text-align:center;margin-top:30px}.large-btn{padding:15px 30px;font-size:1.2em}.history-table{width:100%;border-collapse:collapse;margin-top:20px}.history-table th,.history-table td{border:1px solid var(--border-color);padding:8px;text-align:left}.history-table th{background-color:#444}.pass-true{color:var(--correct-color);font-weight:700}.question-header{font-size:.9em;color:#aaa;margin-bottom:15px}#question-text{font-size:1.1em;margin-bottom:20px}#options-container{list-style-type:none;display:flex;flex-direction:column;gap:10px}.option{padding:12px;border:1px solid var(--border-color);border-radius:5px;cursor:pointer;transition:background-color .2s}.option:hover{background-color:#444}.option.selected{background-color:var(--selected-color)}.option.correct{background-color:var(--correct-color);border-color:var(--correct-color)}.option.incorrect{background-color:var(--incorrect-color);border-color:var(--incorrect-color)}.answer-block{margin-bottom:1em}.options-disabled{pointer-events:none;opacity:.7}.options-disabled .option{cursor:not-allowed}.options-disabled .option:hover{background-color:transparent}#answer-container{padding:20px;background-color:#00000026}#self-grade-container{padding:10px 20px;display:flex;gap:15px;justify-content:center}.navigation-controls{padding:15px;display:flex;justify-content:space-between;border-top:1px solid var(--border-color)}.btn{padding:10px 15px;border:1px solid var(--border-color);background-color:#444;color:var(--text-color);border-radius:5px;cursor:pointer;font-size:1em}.btn:disabled{opacity:.5;cursor:not-allowed}.primary-btn{background-color:var(--primary-color);border-color:var(--primary-color)}.success-btn{background-color:var(--correct-color);border-color:var(--correct-color)}.danger-btn{background-color:var(--incorrect-color);border-color:var(--incorrect-color)}#exam-card-container{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:flex;justify-content:center;align-items:center;padding:20px}.exam-card-modal{background-color:var(--card-color);padding:20px;border-radius:8px;width:100%;max-width:500px;height:90vh;overflow:hidden;display:flex;flex-direction:column}#exam-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(45px,1fr));gap:10px;margin:20px 0;flex-grow:1;overflow-y:auto;padding-right:5px}#exam-card-stats{font-size:.9em;color:#ccc;font-weight:700;margin:0 10px}.card-item{display:flex;justify-content:center;align-items:center;height:45px;border:1px solid var(--border-color);border-radius:5px;cursor:pointer}.card-item.current{border:2px solid var(--primary-color);font-weight:700}.card-item.answered-correct{background-color:var(--correct-color)}.card-item.answered-incorrect{background-color:var(--incorrect-color)}.exam-card-footer{margin-top:20px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}#question-images-container{margin-top:20px;margin-bottom:20px;display:flex;flex-wrap:wrap;gap:15px;justify-content:center}#question-images-container img{max-width:100%;height:auto;border-radius:5px;box-shadow:0 2px 8px #0003;object-fit:contain;background-color:#fff;padding:5px;cursor:pointer}.answer-block .answer-image{max-width:100%;height:auto;border-radius:5px;box-shadow:0 2px 8px #0003;object-fit:contain;background-color:#fff;padding:5px;cursor:pointer;display:block;margin:10px auto}@media(min-width:480px){#question-images-container img,.answer-block .answer-image{max-width:calc(50% - 10px)}}@media(min-width:768px){#question-images-container img,.answer-block .answer-image{max-width:calc(50% - 10px)}}.exam-buttons-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:15px}.pass-icon{color:var(--correct-color);margin-left:8px;font-weight:700}#image-viewer-container{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000d9;display:flex;justify-content:center;align-items:center;z-index:1000;cursor:pointer;padding:20px}#fullscreen-image{max-width:95vw;max-height:95vh;object-fit:contain;cursor:default;box-shadow:0 0 30px #fff3}.viewer-close-btn{position:absolute;top:15px;right:35px;color:#fff;font-size:45px;font-weight:700;cursor:pointer;transition:color .2s ease-in-out}.viewer-close-btn:hover{color:#bbb}#loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#2c2c2cb3;display:flex;justify-content:center;align-items:center;z-index:2000;transition:opacity .3s ease}.spinner{width:50px;height:50px;border:5px solid #666;border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.header-controls{display:flex;align-items:center;gap:15px}.logout-link{color:var(--text-color);text-decoration:none;font-size:.9em}.logout-link:hover{color:var(--primary-color)}.summary-content{padding:30px;text-align:center}.summary-content h2{margin-bottom:20px}#summary-total-score{font-size:2.5em;margin-bottom:20px}#summary-total-score.score-high{color:var(--correct-color)}#summary-total-score.score-low{color:var(--incorrect-color)}#summary-stats ul{list-style-type:none;padding:0;margin-bottom:20px}#summary-stats li{margin-bottom:10px}#summary-submission-status{margin-bottom:30px;font-style:italic;color:#ccc}.summary-actions{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}.main-header{padding:15px 20px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.main-header h1{font-size:1.3em;margin:0}.back-btn{font-size:.9em;padding:8px 12px}.tab-container{width:100%}.tab-buttons{display:flex;border-bottom:1px solid var(--border-color);padding:0 20px}.tab-btn{padding:10px 20px;cursor:pointer;background-color:transparent;border:none;color:var(--text-color);font-size:1em;border-bottom:2px solid transparent;margin-bottom:-1px}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.tab-content{padding:20px}.tab-pane{display:none}.tab-pane.active{display:block}.topic-container{margin-bottom:25px}.topic-title{font-size:1.2em;color:var(--primary-color);margin-bottom:15px;padding-bottom:5px;border-bottom:1px solid var(--border-color)}