.student-portal{min-height:100vh;background:var(--bg-primary)}.student-portal__header{padding:14px 24px;background:var(--bg-secondary);box-shadow:0 1px #0000000f;display:flex;justify-content:space-between;align-items:center;gap:16px}.student-portal__brand{display:flex;align-items:center;gap:14px;min-width:0}.student-portal__logo{width:44px;height:44px;border-radius:12px;object-fit:cover;flex-shrink:0;box-shadow:0 2px 8px #0000001f}.student-portal__title{margin:0;font-size:1.35rem;font-weight:700;letter-spacing:-.02em;line-height:1.2}.student-portal__subtitle{margin:2px 0 0;font-size:.8rem;color:var(--text-muted);font-weight:500}.student-portal__nav{display:flex;flex-wrap:wrap;gap:8px;padding:14px 24px;box-shadow:0 1px #0000000f;background:var(--bg-primary);border-bottom:1px solid var(--border-primary)}.student-portal__main{padding:28px 24px 48px;max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}.student-portal__section-title{font-size:1.5rem;font-weight:700;margin:0 0 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(200px,1fr));gap:16px;margin-bottom:28px}.student-portal__stat-card{border-radius:16px;padding:20px 22px;position:relative;overflow:hidden;border:1px solid var(--border-primary);background:var(--bg-secondary);box-shadow:var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, .06))}.student-portal__stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;border-radius:16px 16px 0 0}.student-portal__stat-card--quiz:before{background:linear-gradient(90deg,#6366f1,#8b5cf6)}.student-portal__stat-card--schedule:before{background:linear-gradient(90deg,#0ea5e9,#06b6d4)}.student-portal__stat-card--badges:before{background:linear-gradient(90deg,#f59e0b,#eab308)}.student-portal__stat-label{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px}.student-portal__stat-value{font-size:2rem;font-weight:800;line-height:1.1;letter-spacing:-.03em}.student-portal__stat-hint{font-size:.85rem;color:var(--text-muted);margin-top:6px}.student-portal__charts{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px}@media (max-width: 900px){.student-portal__charts{grid-template-columns:1fr}}.student-portal__chart-card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:16px;padding:20px;box-shadow:var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, .06))}.student-portal__chart-title{font-size:1rem;font-weight:700;margin:0 0 4px}.student-portal__chart-desc{font-size:.8rem;color:var(--text-muted);margin:0 0 16px}.student-portal__chart-wrap{width:100%;height:260px}.student-portal__chart-wrap--sm{height:220px}.student-portal__table-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--border-primary)}.student-portal__table{width:100%;border-collapse:collapse;font-size:.95rem}.student-portal__table th{text-align:left;padding:12px 16px;background:var(--bg-tertiary);font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.student-portal__table td{padding:14px 16px;border-top:1px solid var(--border-primary)}.student-portal__table tbody 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__schedule-toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.student-portal__toggle{display:inline-flex;border-radius:10px;padding:4px;background:var(--bg-tertiary);border:1px solid var(--border-primary)}.student-portal__toggle button{border:none;background:transparent;padding:8px 16px;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;color:var(--text-muted)}.student-portal__toggle button.active{background:var(--bg-secondary);color:var(--text-primary);box-shadow:0 1px 3px #00000014}.student-cal{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:16px;padding:20px;overflow:hidden}.student-cal__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.student-cal__month-label{font-size:1.15rem;font-weight:700}.student-cal__nav-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--border-primary);background:var(--bg-primary);cursor:pointer;font-size:1.1rem;display:inline-flex;align-items:center;justify-content:center}.student-cal__nav-btn:hover{background:var(--bg-tertiary)}.student-cal__weekdays{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:8px}.student-cal__weekday{text-align:center;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);padding:6px 0}.student-cal__grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.student-cal__cell{min-height:88px;border-radius:10px;border:1px solid var(--border-primary);background:var(--bg-primary);padding:6px 8px;font-size:.8rem}.student-cal__cell--muted{opacity:.35;background:var(--bg-tertiary)}.student-cal__cell--today{outline:2px solid var(--accent-primary, #6366f1);outline-offset:-1px}.student-cal__day-num{font-weight:700;font-size:.85rem;margin-bottom:4px}.student-cal__entry{font-size:.65rem;line-height:1.25;padding:3px 5px;border-radius:4px;margin-bottom:3px;color:#fff;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.student-cal__entry-time{opacity:.95;font-weight:600}.student-portal__day-block{margin-bottom:20px}.student-portal__day-title{font-size:1rem;font-weight:700;margin-bottom:10px;color:var(--text-primary)}.student-portal__entry-row{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-tertiary);border-radius:12px;margin-bottom:8px;border-left:4px solid var(--entry-accent, #3b82f6)}.student-portal__badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px}.student-portal__badge-card{padding:22px 18px;background:var(--bg-secondary);border-radius:16px;border:1px solid var(--border-primary);text-align:center;box-shadow:var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, .06));display:flex;flex-direction:column;align-items:center;gap:10px;transition:transform .2s ease,box-shadow .2s ease}.student-portal__badge-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px #0000001a}[data-theme=dark] .student-portal__badge-card:hover{box-shadow:0 8px 28px #00000073}.student-portal__badge-medallion{width:68px;height:68px}.student-portal__badge-title{font-weight:700;font-size:1.05rem;line-height:1.35;color:var(--text-primary)}.student-portal__badge-desc{font-size:13px;color:var(--text-muted);line-height:1.45;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.student-portal__badge-date{margin-top:4px;font-size:12px;font-weight:500;color:var(--text-muted);padding:5px 12px;border-radius:999px;background:var(--bg-tertiary)}:root{--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--sidebar-width: 240px}:root,[data-theme=light]{--bg-primary: #F5F7FA;--bg-secondary: #FFFFFF;--bg-tertiary: #EEF2F6;--bg-hover: #E2E8F0;--border-primary: #E2E8F0;--border-secondary: #EEF2F6;--text-primary: #1E293B;--text-secondary: #64748B;--text-muted: #94A3B8;--accent-primary: #3B82F6;--accent-success: #10B981;--accent-warning: #F59E0B;--accent-danger: #EF4444;--accent-purple: #8B5CF6;--brand-primary: #1E293B;--student-color: #3B82F6;--teacher-color: #8B5CF6;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .04);--shadow-md: 0 2px 8px rgba(0, 0, 0, .06);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .08);--shadow-soft: 0 1px 4px rgba(0, 0, 0, .04);--shadow-subtle: 0 1px 2px rgba(0, 0, 0, .02);--button-border: rgba(203, 213, 225, .6);--nav-active-bg: #EFF6FF;--nav-active-text: #3B82F6}[data-theme=dark]{--bg-primary: #0F172A;--bg-secondary: #1E293B;--bg-tertiary: #334155;--bg-hover: #475569;--border-primary: #334155;--border-secondary: #1E293B;--button-border: rgba(255, 255, 255, .12);--text-primary: #F1F5F9;--text-secondary: #94A3B8;--text-muted: #64748B;--accent-primary: #60A5FA;--accent-success: #34D399;--accent-warning: #FBBF24;--accent-danger: #F87171;--accent-purple: #A78BFA;--brand-primary: #F1F5F9;--student-color: #60A5FA;--teacher-color: #A78BFA;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .25);--shadow-md: 0 2px 8px rgba(0, 0, 0, .35);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .45);--shadow-soft: 0 1px 4px rgba(0, 0, 0, .2);--nav-active-bg: rgba(96, 165, 250, .15);--nav-active-text: #60A5FA}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}html[dir=rtl] body{font-family:Noto Sans Arabic,Plus Jakarta Sans,sans-serif}[dir=rtl] .app{flex-direction:row-reverse}[dir=rtl] .sidebar{box-shadow:-2px 0 8px #0000000a}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-primary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app{display:flex;height:100%}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-secondary);box-shadow:2px 0 8px #0000000a;display:flex;flex-direction:column;height:100%;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px 20px 12px}.sidebar-logo{width:32px;height:32px;flex-shrink:0}.sidebar-title{font-size:16px;font-weight:700;color:var(--brand-primary)}.sidebar-nav{flex:1;padding:8px 12px;display:flex;flex-direction:column;gap:2px}.sidebar-section-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);padding:16px 12px 6px}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:8px;color:var(--text-secondary);cursor:pointer;transition:all .15s ease;border:none;background:none;width:100%;font-size:14px;font-weight:500;font-family:inherit;text-align:left}.nav-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.nav-item.active{background:var(--nav-active-bg);color:var(--nav-active-text);font-weight:600}.nav-item svg{width:20px;height:20px;flex-shrink:0}.nav-badge{font-size:10px;font-weight:700;padding:2px 6px;background:var(--accent-success);color:#fff;border-radius:4px;margin-left:auto;animation:pulse 2s infinite}.sidebar-footer{padding:12px;box-shadow:0 -1px 4px #00000008;display:flex;flex-direction:column;gap:4px}.sidebar-user{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px}.sidebar-user-avatar{width:32px;height:32px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:var(--accent-primary);flex-shrink:0}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{font-size:13px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-role{font-size:11px;color:var(--text-muted);text-transform:capitalize}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}.content-topbar{display:flex;align-items:center;gap:12px;padding:10px 24px;background:var(--bg-secondary);box-shadow:0 1px 4px #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)}.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)}.card.devices-active-session-toolbar{padding:22px 24px;margin-bottom:16px}.devices-toolbar-matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px;align-items:stretch}.devices-toolbar-matrix--single{grid-template-columns:minmax(0,1fr)}.devices-toolbar-matrix--admin .devices-toolbar-panel--groups{grid-column:1 / -1}.devices-toolbar-panel{border:1px solid var(--border-primary);border-radius:10px;background:var(--bg-tertiary);padding:14px 16px;min-width:0;display:flex;flex-direction:column}.devices-toolbar-panel input.form-input,.devices-toolbar-panel input[type=number]{background:var(--bg-secondary);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm)}[data-theme=dark] .devices-toolbar-panel input.form-input,[data-theme=dark] .devices-toolbar-panel input[type=number]{background:var(--bg-hover);border-color:var(--border-primary)}.devices-toolbar-panel .devices-session-tools-timer-countdown{background:var(--bg-secondary);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm)}[data-theme=dark] .devices-toolbar-panel .devices-session-tools-timer-countdown{background:var(--bg-hover)}.devices-toolbar-panel .devices-toolbar-panel-heading{margin-bottom:12px}.devices-toolbar-panel .devices-session-tools-body{gap:10px}.devices-toolbar-quick-buttons{flex-wrap:wrap;gap:8px}.devices-session-tools-heading{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px;color:var(--text-primary);line-height:1.25;min-height:22px;margin-bottom:10px}.devices-session-tools-heading svg{flex-shrink:0;color:var(--text-secondary)}.devices-session-tools-body{display:flex;flex-direction:column;gap:10px}.devices-session-tools-control-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.devices-session-tools-timer-countdown{display:inline-flex;align-items:center;gap:8px;padding:8px 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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-id{font-family:var(--font-mono);font-size:13px;color:var(--text-secondary)}.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 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