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12px;text-decoration:none;transition:all .18s;display:flex;position:relative}.nav-item:hover{background:var(--sidebar-hover);color:#fff;text-decoration:none}.nav-item.active{color:var(--sidebar-text-active);box-shadow:inset 3px 0 0 var(--color-accent);background:#f9731659;font-weight:600}.nav-item.active .nav-icon{color:var(--color-primary)}.nav-icon{text-align:center;width:20px;color:var(--sidebar-text);flex-shrink:0;font-size:.95rem;transition:color .18s}.nav-item:hover .nav-icon{color:var(--color-primary)}.nav-label{white-space:nowrap;font-size:.875rem;font-weight:500}.sidebar-footer{border-top:1px solid var(--sidebar-border);flex-shrink:0;padding:12px 8px}.sidebar-user{cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:10px 12px;transition:background 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p{color:var(--text-secondary);font-size:.9rem}.auth-form{flex-direction:column;gap:18px;display:flex}.auth-form .form-group label{color:var(--text-primary);font-size:.82rem;font-weight:600}.auth-form .form-group input{border-radius:var(--radius-md);transition:border-color var(--transition), box-shadow var(--transition);background:#fff;border:1.5px solid #e5e3f0;width:100%;padding:12px 16px;font-size:.9rem}.auth-form .form-group input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #7c3aed1a}.auth-actions{justify-content:flex-end;align-items:center;display:flex}.forgot-link{color:var(--color-primary);font-size:.82rem;font-weight:500;text-decoration:none}.forgot-link:hover{text-decoration:underline}.auth-submit{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;width:100%;transition:all 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.stats-grid{margin-top:10px}.quiz-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;display:flex}.quiz-course{align-items:center;gap:10px;display:flex}.quiz-course select{min-width:240px}.quiz-search input{min-width:220px}.quiz-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:start;gap:20px;display:grid}.quiz-list{flex-direction:column;gap:14px;display:flex}.quiz-list-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.quiz-tabs{flex-wrap:wrap;gap:8px;display:flex}.quiz-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:12px;padding:16px 18px;display:flex}.quiz-card-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.quiz-card h3{margin-bottom:4px;font-size:1rem;font-weight:700}.quiz-card 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p{color:#ffffffbf}.stat-icon-wrap{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.25rem;display:flex}.stat-icon-wrap.purple{background:var(--color-primary-light);color:var(--color-primary)}.stat-icon-wrap.teal{color:#0f766e;background:#ccfbf1}.stat-icon-wrap.blue{color:#0284c7;background:#e0f2fe}.stat-icon-wrap.amber{color:#d97706;background:#fef3c7}.stat-icon-wrap.rose{color:#be123c;background:#ffe4e6}.stat-icon-wrap.white{color:#fff;background:#fff3}.stat-info h3{color:inherit;margin-bottom:4px;font-size:1.65rem;font-weight:800;line-height:1}.stat-info p{color:var(--text-secondary);font-size:.8rem;font-weight:500}.dashboard-grid{grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:20px;display:grid}.dashboard-section{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}.section-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:18px 20px;display:flex}.section-header h3{color:var(--text-primary);align-items:center;gap:8px;font-size:.95rem;font-weight:700;display:flex}.section-header h3 i{color:var(--color-primary)}.section-body{padding:6px 0}.data-table{border-collapse:collapse;width:100%}.data-table thead{background:var(--bg-muted)}.data-table th{text-align:left;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);border-bottom:1px solid var(--border);padding:10px 16px;font-size:.72rem;font-weight:700}.data-table td{color:var(--text-primary);border-bottom:1px solid var(--border);padding:12px 16px;font-size:.875rem}.data-table tbody tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:var(--bg-muted)}.assessment-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:24px;padding:18px}.assessment-tools{flex-wrap:wrap;justify-content:space-between;gap:16px;margin-bottom:18px;display:flex}.assessment-filters{flex:1;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;display:grid}.assessment-actions{align-items:center;gap:12px;display:flex}.assessment-table td,.assessment-table th{vertical-align:middle}.assessment-student{justify-content:space-between;align-items:center;gap:12px;display:flex}.assessment-name{color:var(--text-primary);font-weight:700}.assessment-email{color:var(--text-muted);font-size:.75rem}.score-input{border:1px solid var(--border-strong);border-radius:var(--radius-md);width:92px;padding:8px 10px;font-size:.85rem}.assessment-total{color:var(--text-primary);font-weight:700}@media (width<=900px){.assessment-actions{justify-content:flex-start;width:100%}.score-input{width:80px}}.course-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;display:grid}.course-card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);transition:box-shadow var(--transition), transform var(--transition);cursor:pointer;overflow:hidden}.course-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.course-card-link{color:inherit;text-decoration:none;display:block}.course-thumbnail{object-fit:cover;width:100%;height:160px}.course-placeholder{background:linear-gradient(135deg, var(--color-primary-light) 0%, #ddd6fe 100%);width:100%;height:160px;color:var(--color-primary);justify-content:center;align-items:center;font-size:2.5rem;display:flex}.course-body{padding:18px}.course-card h4{color:var(--text-primary);margin-bottom:6px;font-size:.95rem;font-weight:700;line-height:1.4}.course-description{color:var(--text-secondary);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:12px;font-size:.82rem;line-height:1.5;display:-webkit-box;overflow:hidden}.course-meta{border-top:1px solid var(--border);justify-content:space-between;align-items:center;margin-top:12px;padding-top:12px;display:flex}.course-price{color:var(--color-primary);font-size:1rem;font-weight:800}.course-instructor{color:var(--text-muted);align-items:center;gap:4px;font-size:.78rem;display:flex}.content-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.content-header h2{color:var(--text-primary);font-size:1.15rem;font-weight:700}.list-item{border-bottom:1px solid var(--border);transition:background var(--transition);align-items:center;gap:14px;padding:14px 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minmax(320px,1.1fr);gap:24px;display:grid}.checkout-summary-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px}.checkout-summary h3{margin-bottom:6px;font-size:1.25rem}.checkout-price{color:var(--color-primary);margin-bottom:8px;font-size:2rem;font-weight:800}.checkout-description{color:var(--text-secondary);font-size:.9rem}.checkout-features{gap:10px;margin-top:18px;display:grid}.checkout-features div{border-radius:var(--radius-md);background:var(--bg-muted);color:var(--text-secondary);align-items:center;gap:10px;padding:10px 12px;font-size:.85rem;display:flex}.checkout-panel{gap:16px;display:grid}.payment-form{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:24px}.payment-methods{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;display:grid}.payment-option{border-radius:var(--radius-md);border:1px solid var(--border);cursor:pointer;transition:all var(--transition);color:var(--text-secondary);background:#fff;align-items:center;gap:8px;padding:10px 12px;font-size:.78rem;font-weight:600;display:flex}.payment-option input{margin:0}.payment-option.selected{border-color:var(--color-primary);color:var(--text-primary);box-shadow:var(--shadow-glow)}.payment-placeholder{border:1px dashed var(--border-strong);border-radius:var(--radius-lg);background:linear-gradient(135deg,#0f766e14,#f9731614);padding:20px}.placeholder-header{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.placeholder-header h4{margin-bottom:4px}.placeholder-header p{color:var(--text-secondary);font-size:.82rem}.placeholder-row{grid-template-columns:1fr 1fr;gap:10px;display:grid}.payment-callback{justify-content:center;display:flex}.payment-result{background:var(--bg-card);border:1px solid 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