body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#333;background-color:#f0f2f5;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}#root{box-sizing:border-box;justify-content:center;align-items:flex-start;min-height:100vh;padding:20px;display:flex}.App{box-sizing:border-box;background-color:#fff;border-radius:8px;width:100%;max-width:80%;margin:20px auto;padding:20px;position:relative;box-shadow:0 2px 8px #0000000d}.logout-button{color:#dc5757;z-index:1000}@media (width<=600px){.App{max-width:100%;margin:0 auto;padding:15px}.logout-button{top:5px;right:5px}}h1,h2{color:#3a3a3a;text-align:center;margin-bottom:20px}h2{font-size:1.5em}form{flex-direction:column;gap:15px;display:flex}input[type=text],input[type=email],input[type=password]{box-sizing:border-box;border:1px solid #ddd;border-radius:4px;width:100%;padding:10px;font-size:1em}input[type=text]:focus,input[type=email]:focus,input[type=password]:focus{border-color:#bdbdbd;box-shadow:0 0 0 .2rem #bdbdbd40}button{color:#fff;cursor:pointer;width:100%;box-shadow:none;background-color:#007bff;border:none;border-radius:6px;padding:12px 15px;font-size:1em;transition:background-color .2s ease-in-out,box-shadow .2s}button:hover{background-color:#0056b3;box-shadow:0 2px 4px #0000001a}button:disabled{cursor:not-allowed;box-shadow:none;background-color:#e0e0e0}.message{text-align:center;border-radius:4px;margin-top:20px;padding:10px;font-weight:700}.message.success{color:#2e7d32;background-color:#e8f5e9}.message.error{color:#c62828;background-color:#ffebee}.button-group{justify-content:center;gap:10px;margin-top:20px;display:flex}.button-group button{flex:1;max-width:150px}.quiz-container{margin-top:20px}.quiz-question{background-color:#e9ecef;border-radius:6px;margin-bottom:15px;padding:15px}.quiz-question h3{color:#333;margin-top:0;font-size:1.2em}.quiz-options{flex-direction:column;gap:10px;display:flex}.quiz-options button{color:#333;text-align:left;box-shadow:none;background-color:#f8f9fa;border:1px solid #ddd;border-radius:6px;padding:12px;font-size:.95em}.quiz-options button:hover{background-color:#f5f5f5}.quiz-options button.selected{color:#fff;background-color:#007bff;border-color:#007bff;box-shadow:0 1px 3px #0000001a}.check-answer-button{background-color:#28a745;margin-top:20px}.check-answer-button:hover{background-color:#218838}.answer-feedback{text-align:center;border-radius:4px;margin-top:10px;padding:5px;font-weight:700}.answer-feedback.correct{color:#2e7d32;background-color:#e8f5e9}.answer-feedback.incorrect{color:#c62828;background-color:#ffebee}.report-container{margin-top:20px}.report-item{background-color:#fff;border:1px solid #e0e0e0;border-left-width:5px;border-radius:6px;margin-bottom:15px;padding:15px}.report-item.correct{border-color:#28a745}.report-item.incorrect{border-color:#dc5757}.report-item p{margin:5px 0}.report-item strong{color:#333}.report-item .question-text{color:#3a3a3a;margin-bottom:8px;font-weight:700}