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var(--space-5);text-align:left;color:var(--clr-text-muted);text-transform:uppercase;letter-spacing:.5px;font-weight:700;font-size:var(--font-size-xs);border-bottom:var(--glass-border);white-space:nowrap}.data-table td{padding:var(--space-4) var(--space-5);border-bottom:var(--glass-border);color:var(--clr-text);vertical-align:middle}.data-table tbody tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:var(--clr-surface)}.data-table tbody tr{transition:var(--transition-fast)}.badge{border-radius:var(--radius-full);font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.4px;white-space:nowrap;align-items:center;gap:4px;padding:3px 10px;font-weight:700;display:inline-flex}.badge:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px}.badge-success{color:var(--clr-success);background:#4ade801f}.badge-warning{color:var(--clr-warning);background:#fcd34d1f}.badge-danger{color:var(--clr-danger);background:#ff6b6b1f}.badge-info{color:var(--clr-info);background:#38bdf81f}.subject-chip{border-radius:var(--radius-full);font-size:var(--font-size-xs);align-items:center;gap:6px;padding:4px 12px;font-weight:600;display:inline-flex}.progress-bar{background:var(--clr-surface-2);border-radius:var(--radius-full);flex:1;height:8px;overflow:hidden}.progress-value{font-size:var(--font-size-xs);color:var(--clr-text-muted);text-align:right;min-width:36px;font-weight:700}.tab-bar{gap:var(--space-2);border-bottom:var(--glass-border);margin-bottom:var(--space-6);padding-bottom:1px;display:flex;overflow-x:auto}.tab-btn{align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);color:var(--clr-text-muted);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:var(--transition-fast);white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;display:flex}.tab-btn:hover{color:var(--clr-text)}.tab-btn.active{color:var(--clr-primary-light);border-bottom-color:var(--clr-primary)}.tab-count{background:var(--clr-surface-2);border-radius:var(--radius-full);color:var(--clr-text-muted);padding:1px 7px;font-size:11px}.modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;padding:var(--space-4);background:#000000b3;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-overlay.hidden{display:none}.modal-container{background:var(--clr-bg-2);border:var(--glass-border);border-radius:var(--radius-xl);padding:var(--space-8);width:100%;max-width:560px;max-height:90vh;box-shadow:var(--shadow-lg);animation:.3s cubic-bezier(.4,0,.2,1) slideUp;position:relative;overflow-y:auto}.modal-container.modal-lg{max-width:720px}.modal-container.modal-sm{max-width:400px}.modal-header{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;display:flex}.modal-title{font-size:var(--font-size-xl);color:var(--clr-text);font-weight:800}.modal-close{background:var(--clr-surface);border:var(--glass-border);border-radius:var(--radius-md);cursor:pointer;width:32px;height:32px;color:var(--clr-text-muted);transition:var(--transition-fast);justify-content:center;align-items:center;font-size:18px;display:flex}.modal-close:hover{background:var(--clr-danger);color:#fff}.modal-footer{gap:var(--space-3);margin-top:var(--space-6);padding-top:var(--space-5);border-top:var(--glass-border);justify-content:flex-end;display:flex}#toast-container{top:var(--space-5);right:var(--space-5);z-index:9998;gap:var(--space-3);pointer-events:none;flex-direction:column;display:flex;position:fixed}.toast{align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);background:var(--clr-bg-2);border:var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);pointer-events:all;min-width:300px;max-width:400px;font-size:var(--font-size-sm);font-weight:500;animation:.4s cubic-bezier(.34,1.56,.64,1) toastIn;display:flex}.toast.toast-success{border-left:4px solid var(--clr-success)}.toast.toast-error{border-left:4px solid var(--clr-danger)}.toast.toast-warning{border-left:4px solid var(--clr-warning)}.toast.toast-info{border-left:4px solid var(--clr-primary)}.toast-icon{flex-shrink:0;font-size:20px}.toast-message{color:var(--clr-text);flex:1}.toast-out{animation:.3s forwards toastOut}@keyframes toastIn{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}@keyframes toastOut{to{opacity:0;transform:translate(100px)}}.notification-panel{background:var(--clr-bg-2);border:var(--glass-border);border-radius:var(--radius-xl);width:380px;box-shadow:var(--shadow-lg);z-index:200;animation:.2s fadeIn;position:absolute;top:calc(100% + 8px);right:0;overflow:hidden}.notification-panel-header{padding:var(--space-4) var(--space-5);border-bottom:var(--glass-border);font-weight:700;font-size:var(--font-size-sm);justify-content:space-between;align-items:center;display:flex}.notification-list{max-height:360px;overflow-y:auto}.notification-item{gap:var(--space-3);padding:var(--space-4) var(--space-5);border-bottom:var(--glass-border);transition:var(--transition-fast);cursor:pointer;display:flex}.notification-item:last-child{border-bottom:none}.notif-dot{background:var(--clr-primary);border-radius:50%;flex-shrink:0;width:8px;height:8px;margin-top:6px}.notif-text{font-size:var(--font-size-xs);color:var(--clr-text);line-height:1.5}.chart-container{padding:var(--space-4);justify-content:center;align-items:center;display:flex}.bar-chart{gap:var(--space-4);flex-direction:column;display:flex}.bar-label{width:120px;font-size:var(--font-size-xs);color:var(--clr-text-muted);text-align:right;white-space:nowrap;text-overflow:ellipsis;flex-shrink:0;font-weight:600;overflow:hidden}.bar-fill{border-radius:var(--radius-full);height:100%;transition:width 1s cubic-bezier(.4,0,.2,1)}.bar-pct{font-size:var(--font-size-xs);min-width:40px;color:var(--clr-text);font-weight:700}.radar-chart svg{overflow:visible}.homework-card{background:var(--glass-bg);border:var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);align-items:flex-start;gap:var(--space-4);transition:var(--transition-fast);margin-bottom:var(--space-3);display:flex}.homework-card:hover{border-color:var(--clr-border-bright)}.homework-card.completed{opacity:.65}.hw-check{border:2px solid var(--clr-border-bright);border-radius:var(--radius-sm);cursor:pointer;width:28px;height:28px;transition:var(--transition-fast);flex-shrink:0;justify-content:center;align-items:center;margin-top:2px;font-size:16px;display:flex}.hw-check:hover{border-color:var(--clr-success);background:#4ade801a}.hw-check.checked{background:var(--clr-success);border-color:var(--clr-success);color:#0a2e1a;font-weight:700}.hw-info{flex:1}.hw-title{color:var(--clr-text);font-weight:700;font-size:var(--font-size-sm)}.hw-desc{color:var(--clr-text-muted);font-size:var(--font-size-xs);margin-top:2px;line-height:1.5}.hw-meta{align-items:center;gap:var(--space-3);margin-top:var(--space-2);display:flex}.hw-due{font-size:var(--font-size-xs);color:var(--clr-text-faint)}.hw-due.overdue{color:var(--clr-danger)}.question-number{font-size:var(--font-size-xs);color:var(--clr-primary-light);text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--space-2);font-weight:700}.question-text{font-size:var(--font-size-md);color:var(--clr-text);margin-bottom:var(--space-4);font-weight:600;line-height:1.5}.mcq-option{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--clr-surface);border:var(--glass-border);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);font-size:var(--font-size-sm);font-weight:500;display:flex}.mcq-option:hover{background:var(--clr-surface-2);border-color:var(--clr-primary)}.mcq-option.correct{border-color:var(--clr-success);background:#4ade8026}.mcq-option.wrong{border-color:var(--clr-danger);background:#ff6b6b26}.option-circle{border:2px solid var(--clr-border-bright);width:22px;height:22px;transition:var(--transition-fast);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:11px;font-weight:700;display:flex}.mcq-option.selected .option-circle{background:var(--clr-primary);border-color:var(--clr-primary);color:#fff}.score-circle{background:conic-gradient(var(--clr-primary) var(--pct,0%), var(--clr-surface-2) 0%);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:100px;height:100px;display:flex;position:relative}.score-circle:before{content:"";background:var(--clr-bg-2);border-radius:50%;width:80px;height:80px;position:absolute}.score-number{font-size:var(--font-size-xl);color:var(--clr-text);font-weight:800;position:relative}.video-thumbnail{background:linear-gradient(135deg,#6c63ff4d,#00d4aa33);justify-content:center;align-items:center;height:140px;font-size:48px;display:flex;position:relative}.play-btn-overlay:after{content:"▶";color:#fff;font-size:32px}.video-title{font-weight:700;font-size:var(--font-size-sm);color:var(--clr-text);line-height:1.4}.video-meta{font-size:var(--font-size-xs);color:var(--clr-text-muted);margin-top:var(--space-2)}.empty-state{text-align:center;padding:var(--space-16) var(--space-8);color:var(--clr-text-muted)}.empty-icon{margin-bottom:var(--space-4);opacity:.5;font-size:64px}.empty-title{font-size:var(--font-size-lg);color:var(--clr-text);margin-bottom:var(--space-2);font-weight:700}.empty-desc{font-size:var(--font-size-sm);max-width:320px;margin:0 auto}.user-card{background:var(--glass-bg);border:var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-5);align-items:center;gap:var(--space-4);transition:var(--transition-fast);display:flex}.user-card:hover{border-color:var(--clr-border-bright)}.user-avatar{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:22px;display:flex}.user-info{flex:1;min-width:0}.user-name{color:var(--clr-text);font-weight:700;font-size:var(--font-size-sm)}.user-email{font-size:var(--font-size-xs);color:var(--clr-text-muted);margin-top:2px}.user-actions{gap:var(--space-2);display:flex}.request-card{background:var(--glass-bg);border:var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-5);transition:var(--transition-fast);border-left:3px solid var(--clr-warning)}.request-card:hover{border-color:var(--clr-warning);background:var(--clr-surface)}.subject-icon{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;font-size:22px;display:flex}.section-header{margin-bottom:var(--space-5);justify-content:space-between;align-items:center;display:flex}.flex{display:flex}.flex-col{flex-direction:column;display:flex}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-5{gap:var(--space-5)}.gap-6{gap:var(--space-6)}.flex-1{flex:1}.text-right{text-align:right}.text-center{text-align:center}.mt-2{margin-top:var(--space-2)}.mt-4{margin-top:var(--space-4)}.mt-5{margin-top:var(--space-5)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.w-full{width:100%}.hidden{display:none!important}.search-bar{align-items:center;gap:var(--space-2);background:var(--clr-bg-3);border:var(--glass-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-4);min-width:240px;display:flex}.search-bar input{color:var(--clr-text);font-size:var(--font-size-sm);background:0 0;border:none;width:100%}.search-bar input::placeholder{color:var(--clr-text-faint)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes confetti{0%{opacity:1;transform:translateY(0)rotate(0)}to{opacity:0;transform:translateY(100vh)rotate(720deg)}}.animate-fadeIn{animation:.3s fadeIn}.animate-slideUp{animation:.4s cubic-bezier(.4,0,.2,1) slideUp}.skeleton{background:linear-gradient(90deg, var(--clr-surface) 25%, var(--clr-surface-2) 50%, var(--clr-surface) 75%);border-radius:var(--radius-md);background-size:400px 100%;animation:1.4s infinite shimmer}.welcome-greeting{font-size:var(--font-size-sm);color:var(--clr-secondary);text-transform:uppercase;letter-spacing:1px;font-weight:600}.welcome-name{font-size:var(--font-size-3xl);color:var(--clr-text);margin-top:var(--space-1);font-weight:800}.welcome-date{font-size:var(--font-size-sm);color:var(--clr-text-muted);margin-top:var(--space-2)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--clr-border-bright);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--clr-text-muted)}.demo-creds{background:var(--clr-bg-3);border:var(--glass-border);border-radius:var(--radius-md);padding:var(--space-4);margin-top:var(--space-5);font-size:var(--font-size-xs)}.demo-creds-title{color:var(--clr-accent);margin-bottom:var(--space-3);align-items:center;gap:var(--space-2);font-weight:700;display:flex}.demo-cred-row{padding:var(--space-2) 0;border-bottom:var(--glass-border);color:var(--clr-text-muted);justify-content:space-between;align-items:center;display:flex}.demo-cred-row:last-child{border-bottom:none}.demo-cred-email{color:var(--clr-text);font-weight:600}.demo-cred-pass{color:var(--clr-secondary);font-family:monospace;font-weight:600}.upload-area{border:2px dashed var(--clr-border-bright);border-radius:var(--radius-lg);padding:var(--space-10);text-align:center;cursor:pointer;transition:var(--transition-fast)}.upload-area:hover{border-color:var(--clr-primary);background:#6c63ff0d}.upload-icon{margin-bottom:var(--space-3);font-size:40px}.upload-title{color:var(--clr-text);margin-bottom:var(--space-2);font-weight:700}.upload-hint{font-size:var(--font-size-xs);color:var(--clr-text-muted)}.tab-bar{gap:var(--space-2);margin-bottom:var(--space-6);background:var(--clr-bg-3);border:var(--glass-border);border-radius:var(--radius-lg);flex-wrap:wrap;padding:6px;display:flex;overflow-x:auto}.tab-btn{padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-weight:600;font-size:var(--font-size-sm);color:var(--clr-text-muted);cursor:pointer;transition:var(--transition-fast);white-space:nowrap;background:0 0;border:none;align-items:center;gap:6px;display:inline-flex}.tab-btn:hover{background:var(--clr-surface);color:var(--clr-text)}.tab-btn.active{background:linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));color:#fff;box-shadow:0 2px 8px var(--clr-primary-glow)}.tab-count{border-radius:var(--radius-full);background:#ffffff26;padding:1px 6px;font-size:11px;font-weight:700}.notification-panel{background:var(--clr-bg-2);border:var(--glass-border);border-radius:var(--radius-xl);width:360px;max-height:480px;box-shadow:var(--shadow-lg);z-index:200;flex-direction:column;display:flex;position:absolute;top:calc(100% + 10px);right:0;overflow:hidden}.notification-panel-header{padding:var(--space-4) var(--space-5);border-bottom:var(--glass-border);justify-content:space-between;align-items:center;font-size:14px;font-weight:700;display:flex}.notification-list{flex:1;overflow-y:auto}.notification-item{align-items:flex-start;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-bottom:var(--glass-border);transition:var(--transition-fast);display:flex}.notification-item:hover{background:var(--clr-surface)}.notification-item.unread{background:#6c63ff0a}.notif-dot{background:var(--clr-primary);width:8px;height:8px;box-shadow:0 0 6px var(--clr-primary-glow);border-radius:50%;flex-shrink:0;margin-top:6px}.notif-text{font-size:13px;line-height:1.5}.notif-time{color:var(--clr-text-faint);margin-top:3px;font-size:11px}.animate-slideDown{animation:.2s slideDown}.bar-chart{flex-direction:column;gap:10px;display:flex}.bar-chart-row{align-items:center;gap:10px;display:flex}.bar-label{color:var(--clr-text-muted);white-space:nowrap;text-overflow:ellipsis;flex-shrink:0;width:120px;font-size:12px;font-weight:600;overflow:hidden}.bar-track{background:var(--clr-surface-2);border-radius:var(--radius-full);flex:1;height:8px;overflow:hidden}.bar-fill{border-radius:var(--radius-full);background:var(--clr-primary);height:100%;transition:width 1s cubic-bezier(.4,0,.2,1)}.bar-fill.success{background:var(--clr-success)}.bar-fill.warning{background:var(--clr-warning)}.bar-fill.danger{background:var(--clr-danger)}.bar-pct{text-align:right;flex-shrink:0;width:44px;font-size:12px;font-weight:800}.progress-bar{background:var(--clr-surface-2);border-radius:var(--radius-full);width:100%;height:6px;overflow:hidden}.progress-fill{border-radius:var(--radius-full);background:var(--clr-primary);height:100%;transition:width .8s cubic-bezier(.4,0,.2,1)}.progress-fill.success{background:var(--clr-success)}.progress-fill.warning{background:var(--clr-warning)}.progress-fill.danger{background:var(--clr-danger)}.progress-bar-wrapper{align-items:center;gap:10px;display:flex}.progress-value{flex-shrink:0;width:44px;font-size:13px;font-weight:800}.test-question-card{background:var(--clr-surface);border:var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-6);margin-bottom:var(--space-5)}.question-number{color:var(--clr-primary-light);text-transform:uppercase;letter-spacing:1px;margin-bottom:var(--space-3);font-size:11px;font-weight:700}.question-text{color:var(--clr-text);margin-bottom:var(--space-5);font-size:1.1rem;font-weight:600;line-height:1.6}.mcq-options{gap:var(--space-3);flex-direction:column;display:flex}.mcq-option{align-items:center;gap:var(--space-3);padding:var(--space-4);background:var(--clr-bg-3);border:1px solid var(--clr-border);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);font-weight:500;display:flex}.mcq-option:hover{border-color:var(--clr-primary);background:#6c63ff1a}.mcq-option.selected{border-color:var(--clr-primary);color:var(--clr-primary-light);background:#6c63ff33}.option-circle{background:var(--clr-surface-2);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:700;display:flex}.mcq-option.selected .option-circle{background:var(--clr-primary);color:#fff}.welcome-banner{border-radius:var(--radius-xl);padding:var(--space-8);margin-bottom:var(--space-8);background:linear-gradient(135deg,#6c63ff26 0%,#00d4aa1a 50%,#ffb34714 100%);border:1px solid #6c63ff33;position:relative;overflow:hidden}.welcome-banner:before{content:"";pointer-events:none;background:radial-gradient(circle,#6c63ff26,#0000 70%);width:300px;height:300px;position:absolute;top:-50%;right:-20%}.welcome-greeting{color:var(--clr-text-muted);font-size:14px;font-weight:500}.welcome-name{color:var(--clr-text);margin-top:4px;font-size:1.75rem;font-weight:800}.welcome-date{color:var(--clr-text-muted);margin-top:6px;font-size:13px}.section-header{margin-bottom:var(--space-4);margin-top:var(--space-6);justify-content:space-between;align-items:center;display:flex}.section-title{font-size:var(--font-size-md);color:var(--clr-text);font-weight:700}.subject-chip{border-radius:var(--radius-full);align-items:center;gap:4px;padding:2px 10px;font-size:11px;font-weight:700;display:inline-flex}.video-card{background:var(--glass-bg);border:var(--glass-border);border-radius:var(--radius-lg);transition:var(--transition-fast);cursor:pointer;overflow:hidden}.video-card:hover{box-shadow:var(--shadow-md);border-color:var(--clr-border-bright);transform:translateY(-4px)}.video-thumbnail{background:linear-gradient(135deg,#6c63ff40,#00d4aa26);justify-content:center;align-items:center;height:140px;display:flex;position:relative;overflow:hidden}.play-btn-overlay{opacity:0;transition:var(--transition-fast);background:#0000004d;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.play-btn-overlay:after{content:"▶";color:#fff;text-shadow:0 2px 8px #00000080;font-size:36px}.video-card:hover .play-btn-overlay{opacity:1}.video-info{padding:var(--space-4)}.video-title{color:var(--clr-text);margin-bottom:6px;font-size:13px;font-weight:700;line-height:1.4}.video-meta{color:var(--clr-text-muted);font-size:11px}.chart-container{justify-content:center;align-items:center;min-height:260px;display:flex}.divider{border:none;border-top:var(--glass-border);margin:var(--space-5) 0}.badge-neutral{background:var(--clr-surface-2);color:var(--clr-text-muted)}.badge-primary{color:var(--clr-primary-light);background:#6c63ff33}.request-card{padding:var(--space-4);background:var(--clr-surface);border:var(--glass-border);border-radius:var(--radius-lg)}.grid-3-col{grid-column:1/-1}@media (width<=900px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}.sidebar{transform:translate(-100%)}.main-content{margin-left:0}}@media (width<=640px){.grid-2,.grid-3,.grid-4,.form-row,.role-selector{grid-template-columns:1fr}.page-content{padding:var(--space-4)}.bar-label{width:80px}.notification-panel{width:300px}}.google-btn{color:#3c4043;border-radius:var(--radius-lg);cursor:pointer;background:#fff;border:1.5px solid #dadce0;justify-content:center;align-items:center;gap:12px;width:100%;margin-bottom:4px;padding:13px 20px;font-family:inherit;font-size:15px;font-weight:600;text-decoration:none;transition:box-shadow .2s,background .2s;display:flex}.google-btn:hover{color:#3c4043;background:#f8f9fa;text-decoration:none;box-shadow:0 2px 12px #0000001f}.auth-divider{color:var(--clr-text-faint);align-items:center;gap:12px;margin:20px 0;font-size:12px;font-weight:500;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--clr-border);flex:1;height:1px}.role-option input[type=radio]{display:none}.role-option:hover{border-color:var(--clr-primary-light)!important;background:#6c63ff14!important}