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tr:last-child td{border-bottom:none}.table .actions-cell{display:flex;gap:var(--sp-2);justify-content:flex-end}.badge{display:inline-flex;align-items:center;gap:4px;padding:.2rem .6rem;border-radius:var(--r-pill);font-size:.75rem;font-weight:600;line-height:1.4;background:var(--surface-2);color:var(--text-2);border:1px solid var(--border)}.badge-success{background:var(--success-bg);color:var(--success);border-color:#bfe6cc}.badge-warning{background:var(--warning-bg);color:var(--warning);border-color:#f3dcb4}.badge-danger{background:var(--danger-bg);color:var(--danger);border-color:#f3c4c4}.badge-info{background:var(--info-bg);color:var(--brand);border-color:var(--brand-100)}.progress{width:100%;height:8px;background:var(--border);border-radius:var(--r-pill);overflow:hidden}.progress>span{display:block;height:100%;background:var(--brand);border-radius:var(--r-pill);transition:width .3s 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212, .1);--brand-100: rgba(6, 182, 212, .18);--accent: #a855f7;--accent-600: #9333ea;--accent-50: rgba(168, 85, 247, .12);--pink: #f472b6;--bg: #0b0f19;--surface: #161f30;--surface-2: #1c2740;--sidebar-bg: #0f172a;--border: rgba(148, 163, 184, .1);--border-strong: rgba(148, 163, 184, .22);--text-1: #f1f5f9;--text-2: #cbd5e1;--text-3: #94a3b8;--text-4: #64748b;--success: #34d399;--success-bg: rgba(52, 211, 153, .12);--warning: #fbbf24;--warning-bg: rgba(251, 191, 36, .12);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .12);--info: #38bdf8;--info-bg: rgba(56, 189, 248, .12);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .4);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .5), 0 0 0 1px rgba(148, 163, 184, .04);--shadow-md: 0 4px 16px rgba(0, 0, 0, .55), 0 0 18px rgba(6, 182, 212, .06);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .65), 0 0 30px rgba(6, 182, 212, .1)}[data-theme=dark]{color-scheme:dark}[data-theme=dark] body{background-color:var(--bg);color:var(--text-1);color-scheme:dark}[data-theme=dark] h1,[data-theme=dark] h2,[data-theme=dark] h3{color:var(--text-1);text-shadow:0 0 14px rgba(56,189,248,.18)}[data-theme=dark] p,[data-theme=dark] .page-header p{color:var(--text-3)}[data-theme=dark] .card{background:var(--surface);border:1px solid rgba(148,163,184,.1);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease}[data-theme=dark] .card:hover{border-color:#06b6d459;box-shadow:0 8px 28px #0000008c,0 0 22px #06b6d42e}[data-theme=dark] .card-title,[data-theme=dark] .card-header h1,[data-theme=dark] .card-header h2,[data-theme=dark] .card-header h3{color:var(--text-1)}[data-theme=dark] .sidebar{background:var(--sidebar-bg)!important;border-right:1px solid var(--border);box-shadow:2px 0 18px #00000080}[data-theme=dark] .sidebar-header{border-bottom:1px solid var(--border-strong)}[data-theme=dark] .sidebar .logo-container h1,[data-theme=dark] .sidebar .user-info h4{color:var(--text-1)}[data-theme=dark] .sidebar .user-info p,[data-theme=dark] .nav-menu a{color:var(--text-3)}[data-theme=dark] .nav-menu a:hover,[data-theme=dark] .nav-menu li.active a{background:linear-gradient(90deg,#06b6d42e,#06b6d40a);color:var(--brand-500);box-shadow:inset 3px 0 0 var(--brand),0 0 16px #06b6d440;text-shadow:0 0 10px rgba(56,189,248,.45)}[data-theme=dark] .nav-menu li.active .material-icons{color:var(--brand-500);text-shadow:0 0 12px rgba(56,189,248,.6)}[data-theme=dark] .user-profile{border-top:1px solid var(--border-strong)}[data-theme=dark] .user-initials{background:var(--brand-600);color:#fff;box-shadow:0 0 14px #06b6d473}[data-theme=dark] .sidebar:not(:hover) .user-avatar:hover:after,[data-theme=dark] .sidebar:not(:hover) .user-info{background:var(--sidebar-bg);color:var(--text-1);border:1px solid var(--border-strong);box-shadow:0 0 18px #06b6d433}[data-theme=dark] .top-bar,[data-theme=dark] .top-header{background:var(--surface)!important;border-bottom:1px solid var(--border);box-shadow:0 2px 10px #0006}[data-theme=dark] .search-bar{background:var(--bg);border:1px solid var(--border-strong)}[data-theme=dark] .search-bar input{color:var(--text-1)}[data-theme=dark] .search-bar .material-icons,[data-theme=dark] .message-btn,[data-theme=dark] .notification-btn{color:var(--text-3)}[data-theme=dark] .message-btn:hover,[data-theme=dark] .notification-btn:hover{background:var(--surface-2);color:var(--brand-500)}[data-theme=dark] .message-badge{background:var(--info);box-shadow:0 0 10px #38bdf88c}[data-theme=dark] .notification-badge{background:var(--danger);box-shadow:0 0 10px #ef444499}[data-theme=dark] .form-control,[data-theme=dark] input[type=text],[data-theme=dark] input[type=email],[data-theme=dark] input[type=password],[data-theme=dark] input[type=number],[data-theme=dark] input[type=search],[data-theme=dark] input[type=date],[data-theme=dark] input[type=datetime-local],[data-theme=dark] select,[data-theme=dark] 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input[type=checkbox]:checked,[data-theme=dark] input[type=radio]:checked{accent-color:var(--accent);filter:drop-shadow(0 0 6px rgba(168,85,247,.7))}[data-theme=dark] .btn-primary{background-color:var(--brand);color:#04141a;box-shadow:0 4px 16px #06b6d459}[data-theme=dark] .btn-primary:hover:not(:disabled){background-color:var(--brand-500);box-shadow:0 6px 22px #06b6d48c}[data-theme=dark] .btn-accent{background-color:var(--accent);color:#fff;box-shadow:0 4px 16px #a855f766}[data-theme=dark] .btn-accent:hover:not(:disabled){background-color:var(--accent-600);box-shadow:0 6px 22px #a855f799}[data-theme=dark] .btn-success{background-color:var(--success);color:#04231a;box-shadow:0 4px 16px #34d39959}[data-theme=dark] .btn-danger{background-color:var(--danger);color:#fff;box-shadow:0 4px 16px #ef444473}[data-theme=dark] .btn-danger:hover:not(:disabled){background-color:#dc2626;box-shadow:0 6px 22px #ef4444b3}[data-theme=dark] .btn-outline{background:var(--surface);color:var(--text-2);border-color:var(--border-strong)}[data-theme=dark] .btn-outline:hover:not(:disabled){border-color:var(--brand);color:var(--brand-500);background:var(--brand-50);box-shadow:0 0 14px #06b6d440}[data-theme=dark] .btn-ghost:hover:not(:disabled){background:var(--surface-2);color:var(--text-1)}[data-theme=dark] .logout-btn{background:#ef44441f;color:#fca5a5;border:1px solid rgba(239,68,68,.4)}[data-theme=dark] .logout-btn:hover{background:var(--danger);color:#fff;border-color:var(--danger);box-shadow:0 0 18px #ef444499}[data-theme=dark] .logout-btn:focus-visible{box-shadow:0 0 0 3px #ef444459,0 0 16px #ef444480}[data-theme=dark] .table-container,[data-theme=dark] .table-responsive{background:var(--surface);border-color:var(--border)}[data-theme=dark] .table th,[data-theme=dark] .table td{border-color:var(--border);color:var(--text-2)}[data-theme=dark] .table thead 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.setting-item.clickable:focus-visible{outline:none;box-shadow:0 0 0 3px #06b6d459,0 0 16px #06b6d473}[data-theme=dark] .nav-menu .material-icons{transition:color .25s ease,text-shadow .25s ease}[data-theme=dark] .setting-item{background:var(--surface-2);border:1px solid var(--border)}[data-theme=dark] .setting-item:hover{background:var(--bg)}[data-theme=dark] .setting-item.clickable:hover{border-color:var(--brand);background:var(--brand-50);box-shadow:0 0 16px #06b6d42e}[data-theme=dark] .setting-icon{color:var(--brand-500);filter:drop-shadow(0 0 6px rgba(56,189,248,.5))}[data-theme=dark] .setting-text h3{color:var(--text-1)}[data-theme=dark] .setting-text p{color:var(--text-3)}[data-theme=dark] .chevron{color:var(--text-4)}[data-theme=dark] ::-webkit-scrollbar{width:10px;height:10px}[data-theme=dark] ::-webkit-scrollbar-track{background:var(--bg)}[data-theme=dark] ::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand-600),var(--accent-600));border-radius:999px;border:2px solid var(--bg)}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,var(--brand-500),var(--accent))}[data-theme=dark] .dashboard-header h1{color:var(--text-1);text-shadow:0 0 16px rgba(56,189,248,.2)}[data-theme=dark] .dashboard-header p{color:var(--text-3)}[data-theme=dark] .stat-card{background:var(--surface);border:1px solid rgba(148,163,184,.1);box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}[data-theme=dark] .stat-card:hover{transform:translateY(-4px);border-color:#06b6d466;box-shadow:0 10px 28px #0000008c,0 0 22px #06b6d433}[data-theme=dark] .stat-icon{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-600) 100%);box-shadow:0 4px 14px #06b6d466;color:#04141a}[data-theme=dark] .stat-info h3{color:var(--text-1);text-shadow:0 0 12px rgba(56,189,248,.15)}[data-theme=dark] .stat-info p{color:var(--text-3)}[data-theme=dark] .quick-actions h2,[data-theme=dark] .recent-activity h2{color:var(--text-1)}[data-theme=dark] .action-btn{background:var(--surface);border:2px solid var(--border-strong);color:var(--text-2);transition:all .3s ease,border-color .3s ease,color .3s ease,box-shadow .3s ease}[data-theme=dark] .action-btn:hover{border-color:var(--brand);background:var(--brand-50);color:var(--brand-500);transform:translateY(-2px);box-shadow:0 8px 22px #06b6d42e,0 0 18px #06b6d433}[data-theme=dark] .action-btn .material-icons{color:var(--brand-500);filter:drop-shadow(0 0 8px rgba(56,189,248,.45))}[data-theme=dark] .action-btn span:last-child{color:inherit}[data-theme=dark] .activity-item{background:var(--surface);border:1px solid rgba(148,163,184,.1);transition:border-color .3s ease,box-shadow .3s ease}[data-theme=dark] .activity-item:hover{border-color:#06b6d466;box-shadow:0 0 18px #06b6d426}[data-theme=dark] .activity-icon{background:linear-gradient(135deg,var(--success) 0%,#059669 100%);color:#04231a;box-shadow:0 4px 12px #10b98166}[data-theme=dark] .activity-content p{color:var(--text-1)}[data-theme=dark] .activity-content small,[data-theme=dark] .empty-activity{color:var(--text-3)}[data-theme=dark] .empty-activity p{color:var(--text-2)}[data-theme=dark] .empty-activity small{color:var(--text-4)}[data-theme=dark] .mini-spinner{border-color:#94a3b840;border-top-color:var(--brand)}[data-theme=dark] .modal-overlay{background:#030712b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}[data-theme=dark] .modal-content{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-lg),0 0 40px #06b6d414}[data-theme=dark] .modal-header{background:var(--surface-2);border-bottom-color:var(--border)}[data-theme=dark] .modal-header h3{color:var(--text-1)}[data-theme=dark] .close-button{color:var(--text-3)}[data-theme=dark] .close-button:hover{background:var(--border-strong);color:var(--text-1)}[data-theme=dark] .modal-body{background:var(--surface)}[data-theme=dark] .form-group label{color:var(--text-2)}[data-theme=dark] .form-group input,[data-theme=dark] .form-group select{background:var(--bg);color:var(--text-1);border-color:var(--border-strong)}[data-theme=dark] .form-group input:focus,[data-theme=dark] .form-group select:focus{border-color:var(--brand);box-shadow:0 0 0 3px #06b6d433,0 0 14px #06b6d440}[data-theme=dark] .modal-actions{border-top-color:var(--border)}[data-theme=dark] .cancel-button{background:var(--surface-2);color:var(--text-2);border:1px solid var(--border-strong)}[data-theme=dark] .cancel-button:hover{background:var(--border-strong)}[data-theme=dark] .save-button{background:var(--brand);color:#04141a;box-shadow:0 4px 14px #06b6d459}[data-theme=dark] .save-button:hover:not(:disabled){background:var(--brand-500)}[data-theme=dark] .primary-button{background:var(--success);color:#04231a;box-shadow:0 4px 14px #10b98159}[data-theme=dark] .primary-button:hover{background:#059669}[data-theme=dark] .modal-description{background:var(--brand-50);border:1px solid var(--brand-100)}[data-theme=dark] .modal-description p{color:var(--brand-500)}[data-theme=dark] .current-grades h4,[data-theme=dark] .current-subjects h4,[data-theme=dark] .reports-section h4{color:var(--text-1)}[data-theme=dark] .grade-item,[data-theme=dark] .subject-item{background:var(--surface-2);color:var(--text-2);border:1px solid var(--border-strong)}[data-theme=dark] .report-card{background:var(--surface);border:1px solid var(--border)}[data-theme=dark] .report-card:hover{background:var(--brand-50);border-color:var(--brand);box-shadow:0 0 16px #06b6d42e}[data-theme=dark] .report-info h5{color:var(--text-1)}[data-theme=dark] .report-info p{color:var(--text-3)}[data-theme=dark] .profile-card{background:linear-gradient(135deg,#0f172a,#1b6aeb 60%,#06b6d4);box-shadow:0 8px 32px #06b6d42e;border:1px solid rgba(6,182,212,.25)}[data-theme=dark] .profile-info h2{color:#f1f5f9}[data-theme=dark] .profile-name{color:#f1f5f9e6}[data-theme=dark] .profile-role{color:#f1f5f9b3}[data-theme=dark] .countdown-timer-section{background:linear-gradient(135deg,#1559c9,#6d28d9);box-shadow:0 10px 40px #6d28d959}[data-theme=dark] .countdown-setup-btn{background:linear-gradient(135deg,#06b6d4,#a855f7);color:#04141a;box-shadow:0 4px 16px #06b6d466}[data-theme=dark] .countdown-setup-btn:hover{box-shadow:0 6px 22px #a855f78c}[data-theme=dark] .notification-content{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-lg)}[data-theme=dark] .notification-title{color:var(--text-1)}[data-theme=dark] .notification-success .notification-title,[data-theme=dark] .notification-success .notification-message{color:var(--success)}[data-theme=dark] .notification-error .notification-title,[data-theme=dark] .notification-error .notification-message{color:#fca5a5}[data-theme=dark] .notification-message{color:var(--text-2)}[data-theme=dark] .notification-close{color:var(--text-3)}[data-theme=dark] .notification-close:hover{background:var(--surface-2);color:var(--text-1)}[data-theme=dark] .fullscreen-modal-overlay.fullscreen-modal-overlay{background:#030712d1;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}[data-theme=dark] .fullscreen-modal-content.fullscreen-modal-content{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-lg),0 0 40px #06b6d41a}[data-theme=dark] .modal-header.modal-header{border-bottom:1px solid var(--border);background:linear-gradient(135deg,var(--brand-600) 0%,var(--brand) 50%,var(--brand-400) 100%);color:#04141a}[data-theme=dark] .plan-meta-top.plan-meta-top,[data-theme=dark] .plan-meta.plan-meta{background:var(--surface-2);border-left:4px solid var(--brand);color:var(--text-2)}[data-theme=dark] .plan-meta-top.plan-meta-top p,[data-theme=dark] .plan-meta.plan-meta p{color:var(--text-2)}[data-theme=dark] .plan-content-fullscreen.plan-content-fullscreen{background:var(--surface);color:var(--text-1);border:1px solid var(--border)}[data-theme=dark] .plan-content-fullscreen .plan-text,[data-theme=dark] .plan-content-fullscreen .plan-text h1,[data-theme=dark] .plan-content-fullscreen .plan-text h2,[data-theme=dark] .plan-content-fullscreen .plan-text h3,[data-theme=dark] .plan-content-fullscreen .plan-text h4,[data-theme=dark] .plan-content-fullscreen .plan-text strong,[data-theme=dark] .plan-content-fullscreen .plan-text em{color:var(--text-1)}[data-theme=dark] .plan-content-fullscreen .plan-text .section-title{color:#04141a}[data-theme=dark] .plan-content-fullscreen .plan-text .subsection-title{color:var(--text-2);background:var(--surface-2);border-left:5px solid var(--brand)}[data-theme=dark] .plan-content-fullscreen .plan-text .video-source{color:var(--text-3);background:var(--surface-2)}[data-theme=dark] 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solid var(--brand)}[data-theme=dark] .plan-content-fullscreen .plan-text .ai-table th{background:var(--brand);color:#04141a;border:1px solid var(--brand-600)}[data-theme=dark] .plan-content-fullscreen .plan-text .ai-table td{background:var(--surface-2);border:1px solid var(--border);color:var(--text-1)}[data-theme=dark] .plan-content-fullscreen .plan-text .ai-table tr:nth-child(2n) td{background:var(--surface)}[data-theme=dark] .plan-content-fullscreen .plan-text .video-unavailable{background:#ef44441a;border:1px solid rgba(239,68,68,.35);color:#fca5a5}[data-theme=dark] .plan-content-fullscreen .plan-text .video-unavailable-icon,[data-theme=dark] .plan-content-fullscreen .plan-text .video-unavailable-title,[data-theme=dark] .plan-content-fullscreen .plan-text .video-unavailable-message,[data-theme=dark] .plan-content-fullscreen .plan-text .video-unavailable-url{color:#fca5a5}[data-theme=dark] .plan-content-fullscreen .plan-text .no-videos-message{background:var(--surface-2);color:var(--text-3);border:2px dashed var(--border-strong)}[data-theme=dark] .plan-content-fullscreen .plan-text .video-status-badge.available{background:#34d39924;color:#6ee7b7}[data-theme=dark] .plan-content-fullscreen .plan-text .video-status-badge.unavailable{background:#ef444424;color:#fca5a5}[data-theme=dark] .plan-content-fullscreen .plan-text .video-status-badge.checking{background:#fbbf2424;color:#fcd34d}[data-theme=dark] .plan-content-fullscreen .plan-text .check{color:#6ee7b7}[data-theme=dark] .math-large-block.math-large-block,[data-theme=dark] .katex-display.katex-display{background:var(--surface-2)!important}[data-theme=dark] .fullscreen-modal-content,[data-theme=dark] .fullscreen-modal-content *,[data-theme=dark] .plan-content-fullscreen,[data-theme=dark] .plan-content-fullscreen *{color:var(--text-1)!important}[data-theme=dark] .fullscreen-modal-content h2,[data-theme=dark] .fullscreen-modal-content h3,[data-theme=dark] .plan-content-fullscreen h2,[data-theme=dark] .plan-content-fullscreen h3,[data-theme=dark] .fullscreen-modal-content .section-title,[data-theme=dark] .fullscreen-modal-content .subsection-title,[data-theme=dark] .plan-content-fullscreen .section-title,[data-theme=dark] .plan-content-fullscreen .subsection-title{background:linear-gradient(135deg,#1e40af,#2563eb)!important;color:#fff!important;text-shadow:0 1px 2px rgba(0,0,0,.45);border:1px solid rgba(56,189,248,.35)!important}[data-theme=dark] .fullscreen-modal-content h3,[data-theme=dark] .plan-content-fullscreen h3,[data-theme=dark] .fullscreen-modal-content .subsection-title,[data-theme=dark] .plan-content-fullscreen .subsection-title{background:linear-gradient(135deg,#1c2740,#1e3a5f)!important;color:var(--text-1)!important;border-left:5px solid var(--brand)!important;text-shadow:none}[data-theme=dark] .plan-content-fullscreen p,[data-theme=dark] .plan-content-fullscreen li,[data-theme=dark] .plan-content-fullscreen span{color:var(--text-1)!important}[data-theme=dark] .fullscreen-modal-content a,[data-theme=dark] .plan-content-fullscreen a,[data-theme=dark] .plan-content-fullscreen .video-link{color:var(--brand-500)!important}[data-theme=dark] .plan-content-fullscreen .video-unavailable,[data-theme=dark] .plan-content-fullscreen .video-unavailable *,[data-theme=dark] .plan-content-fullscreen .no-videos-message,[data-theme=dark] .plan-content-fullscreen .no-videos-message *{color:#fca5a5!important}[data-theme=dark] .plan-content-fullscreen .video-status-badge.available,[data-theme=dark] .plan-content-fullscreen .video-status-badge.available *{color:#6ee7b7!important}[data-theme=dark] .plan-content-fullscreen .video-status-badge.unavailable,[data-theme=dark] .plan-content-fullscreen .video-status-badge.unavailable *{color:#fca5a5!important}[data-theme=dark] .plan-content-fullscreen .video-status-badge.checking,[data-theme=dark] .plan-content-fullscreen .video-status-badge.checking *{color:#fcd34d!important}[data-theme=dark] .plan-content-fullscreen table,[data-theme=dark] .plan-content-fullscreen table *{color:var(--text-1)!important;background:var(--surface-2)!important;border-color:var(--border-strong)!important}[data-theme=dark] .plan-content-fullscreen table th{background:var(--brand)!important;color:#04141a!important}[data-theme=dark] .plan-content-fullscreen table tr:nth-child(2n) td{background:var(--surface)!important}[data-theme=dark] .plan-content-fullscreen .ai-table th,[data-theme=dark] .plan-content-fullscreen .ai-table th *{color:#fff!important;background:linear-gradient(135deg,#1e40af,#2563eb,#1d4ed8)!important}[data-theme=dark] .plan-content-fullscreen .ai-table td,[data-theme=dark] .plan-content-fullscreen .ai-table td *{color:var(--text-1)!important}[data-theme=dark] .plan-content-fullscreen .ai-table tr:nth-child(2n) td,[data-theme=dark] .plan-content-fullscreen .ai-table tr:nth-child(2n) td *{background:var(--surface)!important}