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textarea{width:100%;padding:.85rem 1rem;border-radius:var(--border-radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:var(--transition-fast);background-color:var(--background-light);font-family:var(--font-family);font-size:.9rem}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4f46e533}.form-group input:focus-visible,.form-group select:focus-visible,.form-group textarea:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px;box-shadow:none}.form-group textarea{resize:vertical;min-height:80px}.error-message{color:var(--danger-color);font-size:.875rem;text-align:center;margin-bottom:1rem;font-weight:500}.form-actions{display:flex;flex-direction:column;align-items:center;gap:1.25rem;margin-top:1.5rem}.form-toggle-link,.forgot-password{font-size:.875rem;font-weight:600;color:var(--primary-color);text-decoration:none;transition:var(--transition-fast);cursor:pointer}.form-toggle-link:hover,.forgot-password:hover{color:var(--primary-hover)}.btn{width:100%;font-weight:700;font-size:.95rem;padding:.85rem 1.5rem;border:none;border-radius:var(--border-radius-md);cursor:pointer;transition:var(--transition-slow);text-align:center;letter-spacing:.5px;box-shadow:var(--shadow-md);text-decoration:none;display:inline-block}.btn:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}.btn:active{transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn:focus-visible{outline:2px solid var(--primary-color);outline-offset:3px}.btn-sm{padding:.35rem 1rem;font-size:.875rem;width:auto}.btn-primary{background-image:linear-gradient(to right,var(--primary-color) 0%,#6366f1 51%,var(--primary-color) 100%);background-size:200% auto;color:var(--text-light)}.btn-primary:hover{background-position:right center}.btn-success{background-color:var(--success-color);color:var(--text-light)}.btn-success:hover{background-color:#16a34a}.btn-secondary{background-color:var(--secondary-color);color:var(--text-light);width:auto}.btn-secondary:hover{background-color:#059669}.btn-danger{background-color:var(--danger-color);color:var(--text-light);width:auto}.btn-danger:hover{background-color:#dc2626}.btn-light{background-color:var(--text-light);color:var(--text-primary);border:1px solid 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1rem;border-radius:var(--border-radius-md);text-decoration:none;color:var(--text-secondary);font-weight:600;transition:var(--transition-fast)}.sidebar-link:hover{background-color:var(--background-medium);color:var(--primary-color)}.sidebar-link.active{background-color:var(--primary-light);color:var(--primary-hover);font-weight:700;box-shadow:var(--shadow-sm)}.sidebar-icon{margin-right:.75rem}.sidebar-footer{margin-top:auto}.header{background-color:#fffc;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:1rem 2.5rem;display:flex;justify-content:space-between;align-items:center;flex-shrink:0;border-bottom:1px solid var(--border-color)}.user-profile{display:flex;align-items:center;font-weight:600}.user-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(to 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1rem}.card-subtitle{font-size:1rem;color:var(--text-secondary);border-bottom:1px solid var(--border-color);padding-bottom:1rem;margin-bottom:1rem;font-weight:600}.card-header{display:flex;justify-content:space-between;align-items:center}.data-table{width:100%;border-collapse:collapse;text-align:left}.data-table th,.data-table td{padding:1rem;border-bottom:1px solid var(--border-color);vertical-align:middle}.data-table thead tr{background-color:var(--background-medium)}.data-table th{font-weight:600;color:var(--text-secondary);text-transform:uppercase;font-size:.75rem;letter-spacing:.5px}.data-table tbody tr:hover{background-color:var(--primary-light)}.modal-overlay{position:fixed;inset:0;background-color:#1e293b99;display:flex;align-items:center;justify-content:center;z-index:50;padding:1rem;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal-content{background-color:var(--text-light);border-radius:var(--border-radius-lg);padding:2rem;width:100%;max-width:500px;position:relative;box-shadow:var(--shadow-lg);animation:modal-fade-in .3s cubic-bezier(.4,0,.2,1)}@keyframes modal-fade-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.modal-content.large{max-width:800px}.modal-close-btn{position:absolute;top:1rem;right:1rem;background:none;border:none;cursor:pointer;color:var(--text-secondary);padding:.5rem;border-radius:50%;transition:var(--transition-fast)}.modal-close-btn:hover{background-color:var(--background-medium);color:var(--text-primary)}.modal-title{font-size:1.5rem;font-weight:800;margin:0 0 1.5rem;border-bottom:1px solid var(--border-color);padding-bottom:1rem}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.modal-actions .btn,.page-header .btn{width:auto}.modal-grid-2{display:grid;grid-template-columns:1fr;gap:1rem}.dashboard-stats{display:grid;grid-template-columns:repeat(1,1fr);gap:1.5rem}.stat-card{text-align:center}.stat-number{font-size:3.5rem;font-weight:800;margin-top:.5rem}.stat-number.students{color:var(--primary-color)}.stat-number.exams{color:var(--secondary-color)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;text-align:center}.stat-value{font-size:1.75rem;font-weight:700}.stat-value.pass{color:var(--success-color)}.stat-value.fail{color:var(--danger-color)}.stat-value.average{color:var(--primary-color)}.stat-value.top-score{color:#f59e0b}.profile-card{max-width:48rem}.profile-details{display:grid;grid-template-columns:repeat(1,1fr);gap:1.5rem}.detail-label{font-size:.875rem;color:var(--text-secondary);font-weight:500}.profile-details p{font-weight:600;margin:0}.profile-actions{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.question-item{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.question-item:last-child{border-bottom:none}.question-text{font-weight:600;margin:0 0 .5rem}.question-options{display:flex;flex-wrap:wrap;gap:1rem;margin-top:.75rem;font-size:.9rem}.correct-answer{color:var(--success-color);font-weight:700}.exam-player-container{padding:2rem;max-width:900px;margin:2rem auto}.exam-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.exam-timer{display:flex;align-items:center;font-size:1.1rem;font-weight:600;color:var(--danger-color)}.exam-timer svg{margin-right:.5rem}.exam-question-card{margin-bottom:2rem}.question-number{font-size:.9rem;font-weight:600;color:var(--text-secondary);margin-bottom:.5rem}.exam-question-text{font-size:1.1rem;font-weight:600;margin-bottom:1.5rem}.exam-options label{display:block;padding:.85rem 1rem;border:1px solid var(--border-color);border-radius:var(--border-radius-md);margin-bottom:.75rem;cursor:pointer;transition:var(--transition-fast)}.exam-options label:hover{background-color:var(--background-medium)}.exam-options input[type=radio]{margin-right:.75rem}.exam-navigation{display:flex;justify-content:space-between;align-items:center;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.exam-navigation .btn{width:auto}.exam-submit-modal .modal-content{text-align:center}.exam-submit-modal p{margin-bottom:1.5rem;font-size:1.1rem}.results-list-container{display:flex;flex-direction:column;gap:1rem}.result-card{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;border-left-width:6px;border-left-style:solid}.score-circle-small{width:90px;height:90px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0;color:#fff;text-shadow:1px 1px 2px rgba(0,0,0,.1)}.score-circle-small .score-percentage{font-size:1.75rem;font-weight:700;line-height:1.1}.score-circle-small .score-grade{font-size:.9rem;font-weight:500;opacity:.9}.result-details{flex-grow:1}.result-title{font-size:1.25rem;margin:0 0 .25rem;color:var(--text-primary)}.result-subtitle{font-size:.9rem;color:var(--text-secondary);margin:0 0 .5rem}.result-score-summary{font-size:1rem;margin:0;color:var(--text-primary);display:flex;align-items:center}.result-actions{flex-shrink:0;margin-left:auto}.feedback-page{background-color:transparent;padding:0;box-shadow:none;border:none}.feedback-page .card{margin-bottom:1.5rem}.feedback-header{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;border-left-width:8px;border-left-style:solid}.score-circle{width:130px;height:130px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0;color:#fff;text-shadow:1px 1px 2px rgba(0,0,0,.1)}.score-circle .score-percentage{font-size:2.25rem;font-weight:700;line-height:1.1}.score-circle .score-grade{font-size:1.1rem;font-weight:500;opacity:.9}.score-details .page-title{margin-bottom:.25rem}.score-details .score-subtitle{font-size:1.1rem;color:var(--text-secondary);margin:0}.grade-a{border-color:var(--success-color)}.grade-a .score-circle,.grade-a .score-circle-small{background-color:var(--success-color)}.grade-b{border-color:var(--secondary-color)}.grade-b .score-circle,.grade-b .score-circle-small{background-color:var(--secondary-color)}.grade-c{border-color:#f59e0b}.grade-c .score-circle,.grade-c .score-circle-small{background-color:#f59e0b}.grade-f{border-color:var(--danger-color)}.grade-f .score-circle,.grade-f .score-circle-small{background-color:var(--danger-color)}.grade-na{border-color:var(--text-secondary)}.grade-na .score-circle,.grade-na .score-circle-small{background-color:var(--text-secondary)}.ai-feedback-box{border:1px solid var(--primary-light);background-color:var(--primary-light);border-radius:var(--border-radius-lg);padding:1.5rem;margin-bottom:1.5rem}.ai-feedback-header{display:flex;align-items:center;gap:.75rem;color:var(--primary-dark);margin-top:0;margin-bottom:1rem}.ai-feedback-header svg{width:24px;height:24px;flex-shrink:0}.ai-feedback-header h3{margin:0;font-size:1.25rem;color:var(--primary-dark)}.ai-feedback-box p{font-size:1.1rem;line-height:1.6;color:var(--text-primary);margin:0;white-space:pre-wrap}.ai-feedback-box p strong{color:var(--primary-dark);font-weight:600}.question-review-section{padding:1.5rem}.question-review-section .card-subtitle{margin-top:0}.feedback-question-card{border:1px solid var(--border-color);border-radius:var(--border-radius-lg);padding:1rem 1.25rem;margin-top:1rem;background-color:var(--background-color)}.feedback-question-card p{margin-top:0;margin-bottom:1rem;font-size:1.05rem}.feedback-answer-row{display:flex;align-items:center;gap:.75rem;font-size:1rem;padding:.75rem;border-radius:var(--border-radius-md)}.feedback-answer-row+.feedback-answer-row{margin-top:.5rem}.feedback-answer-row svg{width:20px;height:20px;flex-shrink:0}.feedback-answer-row.your-answer.incorrect-answer{background-color:#fef2f2;color:#b91c1c}.feedback-answer-row.your-answer.incorrect-answer svg{color:#ef4444}.feedback-answer-row.correct-answer{background-color:#f0fdf4;color:#15803d}.feedback-answer-row.correct-answer svg{color:#22c55e}.feedback-actions{margin-top:1rem;display:flex;justify-content:center;padding-bottom:1rem}.status-pill{padding:.3rem .85rem;border-radius:9999px;font-size:.8rem;font-weight:700}.status-passed{background-color:#dcfce7;color:#166534}.status-failed{background-color:#fee2e2;color:#991b1b}.tabs{border-bottom:2px solid var(--border-color);margin-bottom:1.5rem}.tab-btn{background:none;border:none;padding:.75rem .25rem;margin-right:1.5rem;cursor:pointer;font-weight:600;color:var(--text-secondary);border-bottom:3px solid transparent;transition:var(--transition-fast)}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.search-bar{margin-bottom:1.5rem}.search-bar input{width:100%}.switch{position:relative;display:inline-block;width:50px;height:28px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:#ccc;transition:.4s}.slider:before{position:absolute;content:"";height:20px;width:20px;left:4px;bottom:4px;background-color:#fff;transition:.4s}input:checked+.slider{background-color:var(--primary-color)}input:checked+.slider:before{transform:translate(22px)}.slider.round{border-radius:28px}.slider.round:before{border-radius:50%;box-shadow:var(--shadow-sm)}@media(max-width:600px){.result-card{flex-direction:column;align-items:flex-start;gap:.75rem}.result-actions{width:100%;margin-left:0}.result-actions .btn{width:100%}}@media(min-width:768px){.login-box-landscape{flex-direction:row}.login-branding-panel,.login-form-panel{width:50%}.page-header{flex-direction:row;justify-content:space-between;align-items:center}.dashboard-stats,.help-grid,.stats-grid,.profile-details,.modal-grid-2{grid-template-columns:repeat(2,1fr)}.form-group.span-2{grid-column:span 2}.exam-player-container{padding:2.5rem}}@media(min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr)}.grid-container{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.grid-item-1{grid-column:span 1}.grid-item-2{grid-column:span 2}.grid-item-3{grid-column:span 3}}