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var(--border-color);gap:10px}.sidebar-avatar,.sidebar-user{display:flex;align-items:center}.sidebar-avatar{width:36px;height:36px;border-radius:50%;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0}.topbar{position:fixed;top:0;left:0;right:var(--sidebar-width);height:var(--topbar-height);background:rgba(12,26,69,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 24px;z-index:40}.topbar-title{font-size:1.1rem;font-weight:700}.topbar-actions{gap:10px}.topbar-actions,.topbar-btn{display:flex;align-items:center}.topbar-btn{width:36px;height:36px;border-radius:var(--radius-md);background:var(--bg-tertiary);border:1px solid var(--border-color);justify-content:center;cursor:pointer;transition:all var(--transition);position:relative;color:var(--text-muted)}.topbar-btn:hover{border-color:var(--accent-student);color:var(--text-primary)}.notification-dot{position:absolute;top:-2px;right:-2px;width:8px;height:8px;border-radius:50%;background:var(--color-danger);border:2px solid var(--bg-secondary)}.vit-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;transition:all var(--transition)}.vit-card:hover{border-color:rgba(47,159,216,.3);transform:translateY(-1px)}.vit-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.vit-card-title{font-size:var(--font-lg);font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-md);font-family:var(--font-family);font-size:var(--font-base);font-weight:700;cursor:pointer;transition:all var(--transition);border:none;outline:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#2F9FD8,#1e7db0);color:#fff;box-shadow:0 4px 15px rgba(47,159,216,.25)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px rgba(47,159,216,.35)}.btn-admin{background:linear-gradient(135deg,#8B5CF6,#6d3fd4);color:#fff;box-shadow:0 4px 15px rgba(139,92,246,.25)}.btn-admin:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px rgba(139,92,246,.35)}.btn-parent{background:linear-gradient(135deg,#6DBE45,#52a030);color:#fff;box-shadow:0 4px 15px rgba(109,190,69,.25)}.btn-ghost{background:var(--bg-tertiary);color:var(--text-muted);border:1px solid var(--border-color)}.btn-ghost:hover:not(:disabled){color:var(--text-primary);border-color:rgba(47,159,216,.3)}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:var(--radius-pill);font-size:.72rem;font-weight:700;border:1px solid}.badge-success{background:rgba(74,222,128,.1);border-color:rgba(74,222,128,.3);color:var(--color-success)}.badge-warning{background:rgba(250,204,21,.1);border-color:rgba(250,204,21,.3);color:var(--color-warning)}.badge-danger{background:rgba(248,113,113,.1);border-color:rgba(248,113,113,.3);color:var(--color-danger)}.badge-info{background:rgba(96,165,250,.1);border-color:rgba(96,165,250,.3);color:var(--color-info)}.badge-student{background:rgba(47,159,216,.12);border-color:rgba(47,159,216,.3);color:var(--accent-student)}.badge-admin{background:rgba(139,92,246,.12);border-color:rgba(139,92,246,.3);color:var(--accent-admin)}.badge-parent{background:rgba(109,190,69,.12);border-color:rgba(109,190,69,.3);color:var(--accent-parent)}.progress-track{background:var(--bg-tertiary);height:8px;overflow:hidden}.progress-fill,.progress-track{border-radius:var(--radius-pill)}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent-student),#7C3AED);transition:width .6s ease}.progress-fill-admin{background:linear-gradient(90deg,#8B5CF6,#6d3fd4)}.progress-fill-parent{background:linear-gradient(90deg,#6DBE45,#52a030)}.stat-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;display:flex;align-items:flex-start;gap:16px;transition:all var(--transition)}.stat-icon{width:44px;height:44px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}.stat-num{font-size:1.8rem;font-weight:800;line-height:1;margin-bottom:4px}.stat-label{font-size:var(--font-sm);color:var(--text-muted)}.stat-trend{font-size:.72rem;font-weight:600;margin-top:4px}.vit-table{width:100%;border-collapse:collapse}.vit-table th{padding:12px 16px;font-size:.75rem;font-weight:700;color:var(--text-muted);text-align:right;border-bottom:1px solid var(--border-color);letter-spacing:.5px}.vit-table td{padding:14px 16px;font-size:var(--font-sm);border-bottom:1px solid rgba(30,48,112,.5);transition:background var(--transition)}.vit-table tbody tr:hover td{background:var(--bg-tertiary)}.form-group{margin-bottom:18px}.form-label{display:block;font-size:var(--font-sm);font-weight:700;color:var(--text-muted);margin-bottom:8px;letter-spacing:.5px}.form-input{width:100%;background:rgba(17,32,96,.5);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:12px 14px;color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-base);transition:all var(--transition);outline:none;direction:rtl}.form-input:focus{border-color:var(--accent-student);background:rgba(17,32,96,.7);box-shadow:0 0 0 3px rgba(47,159,216,.1)}.form-input::-moz-placeholder{color:var(--text-muted)}.form-input::placeholder{color:var(--text-muted)}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,var(--bg-secondary) 25%,var(--bg-tertiary) 50%,var(--bg-secondary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.animate-fade-in{animation:fadeIn .4s ease-out}.animate-slide-in{animation:slideInRight .3s ease-out}.animate-scale-in{animation:scaleIn .3s ease-out}.xp-pill{background:rgba(47,159,216,.12);border:1px solid rgba(47,159,216,.25);border-radius:var(--radius-pill);color:var(--accent-student)}.streak-pill,.xp-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;font-size:var(--font-sm);font-weight:700}.streak-pill{background:rgba(250,204,21,.12);border:1px solid rgba(250,204,21,.25);border-radius:var(--radius-pill);color:var(--color-warning)}.modal-overlay{position:fixed;inset:0;background:rgba(3,14,46,.8);backdrop-filter:blur(4px);z-index:100;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease}.modal-box{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:28px;max-width:500px;width:90%;animation:scaleIn .3s ease}#particles-canvas{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.4}@media (max-width:768px){:root{--sidebar-width:0px;--topbar-height:56px}.sidebar{transform:translateX(100%);width:260px}.sidebar.open{transform:translateX(0)}.page-content{padding:16px 12px}.topbar{right:0;padding:0 16px}.stat-num{font-size:1.4rem}}