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8px;letter-spacing:-.02em}.student-portal__lead{color:var(--text-muted);margin:0 0 24px;font-size:1rem;line-height:1.5}.student-portal__stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px}.student-portal__stat-card{border-radius:16px;padding:16px;display:flex;align-items:center;gap:16px;border:1px solid var(--border-primary);background:var(--bg-secondary);box-shadow:var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, .06));transition:transform .2s ease,box-shadow .2s ease}.student-portal__stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.student-portal__stat-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff}.student-portal__stat-card--level .student-portal__stat-icon{background:linear-gradient(135deg,#f43f5e,#fb923c)}.student-portal__stat-card--quiz 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tr:nth-child(2n){background:#00000005}.student-portal__score-pill{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-weight:700;font-size:.9rem;background:linear-gradient(135deg,#6366f126,#8b5cf626);color:var(--accent-primary, #6366f1)}.student-portal__assignment-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.student-portal__assignment-card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:16px;padding:20px;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;cursor:pointer;box-shadow:0 2px 5px #00000008}.student-portal__assignment-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px 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#0000000a;flex-wrap:wrap;min-height:0}.content-topbar:empty{display:none}.content{flex:1;padding:28px 32px;overflow-y:auto}.content-header{margin-bottom:24px}.content-title{font-size:22px;font-weight:700;margin-bottom:4px;color:var(--text-primary)}.content-subtitle{color:var(--text-secondary);font-size:14px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-soft);transition:box-shadow .15s ease,transform .15s ease}.stat-label{font-size:13px;color:var(--text-secondary);margin-bottom:8px;font-weight:500}.stat-value{font-size:32px;font-weight:700}.stat-value.students{color:var(--student-color)}.stat-value.teachers{color:var(--teacher-color)}.stat-value.online{color:var(--accent-success)}.stat-value.locked{color:var(--accent-danger)}.devices-stats-grid .stat-card{display:flex;align-items:center;gap:14px;padding:18px 20px}.devices-stats-grid .stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.devices-stats-grid .stat-label{margin-bottom:4px}.devices-stats-grid .stat-value{font-size:26px;line-height:1.1}.stat-card-icon{flex-shrink:0;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center}.stat-card-icon--neutral{background:var(--bg-tertiary);color:var(--text-secondary)}.stat-card-icon--students{background:#3b82f61f;color:var(--student-color)}.stat-card-icon--teachers{background:#8b5cf61f;color:var(--teacher-color)}.stat-card-icon--online{background:#10b9811f;color:var(--accent-success)}.stat-card-icon--locked{background:#ef44441f;color:var(--accent-danger)}.devices-tools-section{margin-bottom:20px}.devices-tools-heading{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700;margin-bottom:12px;color:var(--text-primary)}.devices-tools-heading svg{color:var(--accent-primary)}.devices-control-card{display:flex;background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:16px}.devices-control-card:last-child{margin-bottom:0}.devices-control-block{flex:1 1 0;min-width:0;display:flex;gap:14px;padding:20px 22px}.devices-control-divider{width:1px;align-self:stretch;background:var(--border-primary);margin:18px 0;flex-shrink:0}.devices-control-icon{flex-shrink:0;width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center}.devices-control-icon--info{background:#3b82f61f;color:var(--accent-primary)}.devices-control-icon--success{background:#10b9811f;color:var(--accent-success)}.devices-control-icon--warning{background:#f59e0b1f;color:var(--accent-warning)}.devices-control-icon--danger{background:#ef44441f;color:var(--accent-danger)}.devices-control-icon--pending{background:#3b82f61f;color:var(--accent-primary)}.devices-control-icon--purple{background:#8b5cf61f;color:var(--accent-purple)}.devices-control-icon--teal{background:#0d948824;color:var(--accent-teal)}.devices-control-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:10px}.devices-control-label{font-size:13px;font-weight:700;color:var(--text-primary);line-height:1.25}.devices-control-label-row{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.devices-timer-chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;padding:3px 10px;border-radius:999px;background:#f59e0b24;color:var(--accent-warning)}@media (max-width: 720px){.devices-control-card{flex-direction:column}.devices-control-divider{width:auto;height:1px;margin:0}}.exam-live-banner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;overflow:hidden;background:linear-gradient(135deg,#ef44441a,#ef444408);border:1px solid rgba(239,68,68,.22);border-left:3px solid var(--accent-danger);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:16px 20px}.exam-live-banner-info{display:flex;align-items:center;gap:14px;min-width:0}.exam-live-orb{position:relative;flex-shrink:0;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--accent-danger);color:#fff;box-shadow:0 2px 8px #ef444466}.exam-live-orb-ring{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;border:2px solid var(--accent-danger);animation:examOrbPing 2.4s cubic-bezier(0,0,.2,1) infinite}.exam-live-orb-ring--delay{animation-delay:1.2s}@keyframes examOrbPing{0%{transform:scale(1);opacity:.55}to{transform:scale(2.1);opacity:0}}.exam-live-banner-text{display:flex;flex-direction:column;gap:3px;min-width:0}.exam-live-banner-title{font-size:15px;font-weight:700;color:var(--text-primary)}.exam-live-banner-meta{font-size:12.5px;font-weight:500;color:var(--text-secondary);font-variant-numeric:tabular-nums}.exam-live-banner-cta{flex-shrink:0;white-space:normal;text-align:center;line-height:1.25}@media (max-width: 560px){.exam-live-banner{flex-direction:column;align-items:stretch}.exam-live-banner-cta{width:100%;justify-content:center}}.exam-leave-requests{background:var(--bg-secondary);border:1px solid rgba(245,158,11,.25);border-left:3px solid var(--accent-warning);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.exam-leave-requests-header{display:flex;align-items:center;gap:9px;padding:13px 18px;font-size:13px;font-weight:700;color:var(--text-primary);background:#f59e0b14;border-bottom:1px solid var(--border-primary)}.exam-leave-requests-icon{display:flex;align-items:center;justify-content:center;flex-shrink:0;width:22px;height:22px;border-radius:50%;background:#f59e0b2e;color:var(--accent-warning);transform-origin:50% 90%;animation:examLeaveHandWave 1.8s ease-in-out infinite}@keyframes examLeaveHandWave{0%,to{transform:rotate(0)}20%{transform:rotate(-16deg)}40%{transform:rotate(12deg)}60%{transform:rotate(-8deg)}80%{transform:rotate(0)}}.exam-leave-requests-list{display:flex;flex-direction:column}.exam-leave-request-row{display:flex;align-items:center;gap:12px;padding:11px 18px}.exam-leave-request-row+.exam-leave-request-row{border-top:1px solid var(--border-secondary)}.exam-leave-request-avatar{display:flex;align-items:center;justify-content:center;flex-shrink:0;width:34px;height:34px;border-radius:50%;font-size:13px;font-weight:700;color:#451a03;background:var(--accent-warning)}.exam-leave-request-info{flex:1;min-width:0}.exam-leave-request-name{font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.exam-leave-request-sub{font-size:12px;color:var(--text-secondary);margin-top:1px}.exam-leave-request-actions{display:flex;gap:8px;flex-shrink:0}.exam-leave-request-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:all .15s ease}.exam-leave-request-btn--approve{background:#10b9811f;color:var(--accent-success)}.exam-leave-request-btn--approve:hover{background:var(--accent-success);color:#fff}.exam-leave-request-btn--deny{background:#ef44441a;color:var(--accent-danger)}.exam-leave-request-btn--deny:hover{background:var(--accent-danger);color:#fff}.devices-tool-btn-row{display:flex;gap:8px}.devices-tool-btn-row .btn{flex:1 1 0;min-width:0;white-space:normal;text-align:center;line-height:1.25}.devices-tool-cta{width:100%;justify-content:center;white-space:normal;text-align:center;line-height:1.25}.devices-tool-group-row{display:flex;align-items:flex-end;gap:10px}.devices-tool-group-row .btn{flex:1 1 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32px));animation:slideUp .2s ease}.live-game-session-toast{position:fixed;top:20px;left:50%;transform:translate(-50%);z-index:10000;display:flex;align-items:center;gap:10px;color:#fff;background:var(--accent-warning, #d97706);padding:12px 20px;border-radius:10px;font-size:14px;font-weight:500;box-shadow:0 8px 24px #0000002e;max-width:min(420px,calc(100vw - 32px));animation:slideUp .2s ease}.live-game-session-toast-icon{font-size:16px;line-height:1}@keyframes liveGameBtnShake{10%,90%{transform:translate(-1px)}20%,80%{transform:translate(2px)}30%,50%,70%{transform:translate(-4px)}40%,60%{transform:translate(4px)}}.live-game-btn-shake{animation:liveGameBtnShake .5s ease}.devices-session-tools-timer-countdown{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-tertiary);border-radius:8px;font-size:18px;font-weight:600;font-variant-numeric:tabular-nums;width:fit-content;max-width:100%}.devices-session-tools-picked{margin:0;color:var(--accent-success);font-weight:500;font-size:13px;line-height:1.35}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .15s ease;border:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn svg{width:18px;height:18px}.btn-primary{background:var(--accent-primary);color:#fff;box-shadow:0 1px 3px #3b82f659}.btn-primary:hover:not(:disabled){background:#2563eb;box-shadow:0 2px 6px #3b82f666}.btn-danger{background:var(--accent-danger);color:#fff;box-shadow:0 1px 3px #ef444459}.btn-danger:hover:not(:disabled){background:#dc2626;box-shadow:0 2px 6px #ef444466}.btn-success{background:var(--accent-success);color:#fff;box-shadow:0 1px 3px #10b98159}.btn-success:hover:not(:disabled){background:#059669;box-shadow:0 2px 6px #10b98166}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--button-border);box-shadow:var(--shadow-subtle)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--button-border);box-shadow:var(--shadow-soft)}.btn-ghost{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--button-border);box-shadow:var(--shadow-subtle)}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary);border-color:var(--button-border);box-shadow:var(--shadow-soft)}.btn-ghost.active{color:var(--accent-primary);background:var(--nav-active-bg)}.btn-sm{padding:6px 12px;font-size:13px;border-radius:6px}.btn-sm svg{width:16px;height:16px}.btn-lg{padding:12px 24px;font-size:16px}.card{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-soft)}.card-title{font-size:16px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px;color:var(--text-primary)}.card-subtitle{font-size:14px;color:var(--text-secondary);margin-top:4px}.card-header-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-header-row .card-title{margin-bottom:0}.device-table{width:100%;background:var(--bg-secondary);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-soft)}.device-table table{width:100%;border-collapse:collapse}.device-table th,.device-table td{padding:14px 16px;text-align:left}.device-table th{background:var(--bg-tertiary);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary)}.device-table tr:hover td{background:var(--bg-tertiary)}.device-table tbody tr{transition:background .1s ease}.device-table tbody tr:not(:last-child) td{border-bottom:1px solid var(--border-secondary)}.device-id{font-family:var(--font-mono);font-size:13px;color:var(--text-secondary)}.devices-name-cell{display:flex;align-items:center;gap:12px}.devices-name-cell-text{min-width:0}.devices-avatar{flex-shrink:0;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;background:var(--bg-tertiary);color:var(--text-secondary);box-shadow:inset 0 0 0 1px var(--border-primary)}.devices-avatar.is-online{background:#10b9811f;color:var(--accent-success);box-shadow:inset 0 0 0 1px #10b98159}.devices-table .actions-cell{gap:4px;flex-wrap:nowrap;justify-content:flex-end}.devices-table .actions-cell .btn-ghost{background:transparent;border-color:transparent;box-shadow:none}.devices-table .actions-cell .btn-ghost:hover:not(:disabled){background:var(--bg-hover);border-color:transparent}.devices-table .actions-cell .btn-sm{padding:6px 10px}.devices-col-status{width:1%;white-space:nowrap}.devices-col-actions{text-align:right}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:500}.badge-student{background:#3b82f61a;color:var(--student-color)}.badge-teacher{background:#8b5cf61a;color:var(--teacher-color)}.badge-online{background:#10b9811a;color:var(--accent-success)}.badge-offline{background:#94a3b81a;color:var(--text-muted)}.badge-locked{background:#ef44441a;color:var(--accent-danger)}.badge-unlocked{background:#10b9811a;color:var(--accent-success)}.badge-admin{background:#8b5cf61a;color:var(--accent-purple)}.badge-super{background:#ef44441a;color:var(--accent-danger)}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-dot.online{background:var(--accent-success);box-shadow:0 0 8px var(--accent-success)}.status-dot.offline{background:var(--text-muted)}.actions-cell{display:flex;gap:8px}.badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.badge-def-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:18px 14px;background:var(--bg-tertiary);border-radius:14px;min-height:168px;transition:box-shadow .2s ease,transform .2s ease;border:1px solid var(--button-border)}.badge-def-card:hover{box-shadow:var(--shadow-soft);transform:translateY(-2px)}.badge-def-icon{display:flex;align-items:center;justify-content:center}.badge-def-name{font-weight:600;font-size:15px;line-height:1.3}.badge-def-meta{font-size:12px;color:var(--text-muted);line-height:1.35}.badge-icon-medallion{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 16px #f59e0b47,inset 0 1px #ffffff73;background:linear-gradient(145deg,#fffbeb,#fde68a 42%,#f59e0b);color:#b45309}[data-theme=dark] .badge-icon-medallion{background:linear-gradient(145deg,#422006,#78350f 48%,#a16207);color:#fcd34d;box-shadow:0 4px 18px #0006,inset 0 1px #ffffff1a}.badge-icon-medallion--custom{background:linear-gradient(145deg,#eff6ff,#bfdbfe 45%,#3b82f6);color:#1e3a8a;box-shadow:0 4px 16px #3b82f638,inset 0 1px #fff6}[data-theme=dark] .badge-icon-medallion--custom{background:linear-gradient(145deg,#172554,#1e3a5f,#1d4ed8);color:#93c5fd;box-shadow:0 4px 18px #00000059,inset 0 1px #ffffff14}.badge-icon-medallion--sm{width:48px;height:48px}.badge-icon-medallion--xs{width:40px;height:40px}.badge-history-list{display:flex;flex-direction:column;gap:10px}.badge-history-item{display:grid;grid-template-columns:auto 1fr auto;align-items:start;gap:14px 16px;padding:14px 16px;background:var(--bg-primary);border-radius:12px;border:1px solid var(--button-border);transition:background .15s,box-shadow .15s}.badge-history-item:hover{background:var(--bg-tertiary);box-shadow:var(--shadow-soft)}.badge-history-icon{display:flex;align-items:center;justify-content:center;flex-shrink:0;cursor:help;padding-top:2px}.badge-history-body{min-width:0;display:flex;flex-direction:column;gap:4px}.badge-history-topline{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px}.badge-history-student{font-weight:600;font-size:15px}.badge-history-badge{color:var(--text-secondary);font-size:14px}.badge-history-note{font-size:13px;color:var(--text-muted)}.badge-history-date{font-size:12px;color:var(--text-muted);flex-shrink:0;padding-top:2px;text-align:right}.badge-icon-picker{display:flex;flex-wrap:wrap;gap:8px}.badge-icon-option{width:44px;height:44px;border-radius:8px;border:1px solid var(--button-border);background:var(--bg-primary);color:var(--text-secondary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 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