:root{--primary-color:#1abc9c;--primary-dark:#16a085;--secondary-color:#3498db;--success-color:#2ecc71;--warning-color:#f39c12;--danger-color:#e74c3c;--info-color:#9b59b6;--bg-color:#f5f7fa;--card-bg:#fff;--text-color:#2c3e50;--text-muted:#7f8c8d;--border-color:#e1e8ed;--sidebar-width:280px;--sidebar-collapsed:80px;--header-height:70px;--shadow-sm:0 2px 4px rgba(0,0,0,.05);--shadow-md:0 4px 12px rgba(0,0,0,.1);--shadow-lg:0 8px 24px rgba(0,0,0,.15);--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--transition:all 0.3s ease}[data-theme=dark]{--bg-color:#1a1a2e;--card-bg:#16213e;--text-color:#eaeaea;--text-muted:#a0a0a0;--border-color:#2d3748}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px}body{font-family:Tajawal,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-color);color:var(--text-color);line-height:1.6;min-height:100vh;overflow-x:hidden}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none}button,input,select,textarea{font-family:inherit;outline:none}.auth-page{background:linear-gradient(135deg,var(--primary-color) 0,var(--primary-dark) 100%);display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.auth-container{width:100%;max-width:480px}.auth-box{background:var(--card-bg);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}.auth-header{padding:40px 30px;text-align:center;background:linear-gradient(180deg,rgba(26,188,156,.1),transparent)}.logo-container{width:100px;height:100px;margin:0 auto 20px;background:var(--primary-color);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(26,188,156,.3)}.logo-container img{width:70%;height:70%;object-fit:contain}.logo-fallback{font-size:40px;color:#fff}.auth-header h1{font-size:1.8rem;font-weight:700;color:var(--text-color);margin-bottom:8px}.auth-header p{color:var(--text-muted);font-size:1rem}.auth-tabs{display:flex;border-bottom:2px solid var(--border-color);padding:0 30px}.auth-tab{flex:1 1;padding:16px;background:none;border:none;font-size:1rem;font-weight:600;color:var(--text-muted);position:relative;transition:var(--transition)}.auth-tab.active{color:var(--primary-color)}.auth-tab.active:after{content:"";position:absolute;bottom:-2px;left:0;right:0;height:3px;background:var(--primary-color);border-radius:3px 3px 0 0}.auth-form{display:none;padding:30px;animation:fadeIn .3s ease}.auth-form.active{display:block}@keyframes 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rgba(26,188,156,.1)}.toggle-password{position:absolute;left:12px;background:none;border:none;color:var(--text-muted);padding:8px;cursor:pointer;transition:var(--transition)}.toggle-password:hover{color:var(--primary-color)}.form-options{justify-content:space-between;margin-bottom:24px}.form-options,.remember-me{display:flex;align-items:center}.remember-me{gap:8px;cursor:pointer;color:var(--text-muted);font-size:.9rem}.remember-me input{width:18px;height:18px;accent-color:var(--primary-color)}.forgot-password{color:var(--primary-color);font-size:.9rem;font-weight:600}.forgot-password:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-md);font-size:1rem;font-weight:600;transition:var(--transition);border:2px solid transparent}.btn-block{width:100%;padding:16px}.btn-primary{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px rgba(26,188,156,.3)}.btn-outline{background:transparent;color:var(--primary-color);border-color:var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:#fff}.btn-success{background:var(--success-color);color:#fff;border-color:var(--success-color)}.btn-danger{background:var(--danger-color);color:#fff;border-color:var(--danger-color)}.btn-warning{background:var(--warning-color);color:#fff;border-color:var(--warning-color)}.btn-sm{padding:8px 16px;font-size:.875rem}.btn-icon{width:40px;height:40px;padding:0;border-radius:50%}.sidebar{position:fixed;top:0;right:0;width:var(--sidebar-width);height:100vh;background:var(--card-bg);box-shadow:var(--shadow-md);z-index:1000;display:flex;flex-direction:column;transition:var(--transition)}.sidebar.collapsed{width:var(--sidebar-collapsed)}.sidebar-header{padding:20px;justify-content:space-between;border-bottom:1px solid var(--border-color)}.logo,.sidebar-header{display:flex;align-items:center}.logo{gap:12px}.logo img{object-fit:contain}.logo img,.logo-icon{width:45px;height:45px}.logo-icon{background:var(--primary-color);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}.logo span{font-weight:700;font-size:1.1rem;white-space:nowrap}.sidebar.collapsed .logo span{display:none}.sidebar-toggle{width:36px;height:36px;background:var(--bg-color);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--transition)}.sidebar-toggle:hover{background:var(--primary-color);color:#fff}.sidebar-nav{flex:1 1;padding:20px 0;overflow-y:auto}.sidebar-nav ul{list-style:none;padding:0 12px}.sidebar-nav li{margin-bottom:4px}.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--radius-md);color:var(--text-muted);font-weight:500;transition:var(--transition)}.sidebar-nav a:hover{background:rgba(26,188,156,.1);color:var(--primary-color)}.sidebar-nav li.active a{background:var(--primary-color);color:#fff}.sidebar-nav i{font-size:1.2rem;width:24px;text-align:center}.sidebar.collapsed .sidebar-nav span{display:none}.sidebar-footer{padding:16px;border-top:1px solid var(--border-color);justify-content:space-between}.sidebar-footer,.user-info{display:flex;align-items:center}.user-info{gap:12px}.user-avatar{width:42px;height:42px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem}.user-details{display:flex;flex-direction:column}.user-name{font-weight:600;font-size:.95rem}.user-role{font-size:.8rem;color:var(--text-muted)}.sidebar.collapsed 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i{color:var(--primary-color)}.page-header p{color:var(--text-muted);font-size:1rem}.header-actions-group{display:flex;gap:12px}.card{background:var(--card-bg);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin-bottom:24px;overflow:hidden}.card-header{padding:20px 24px;border-bottom:1px solid var(--border-color);justify-content:space-between;flex-wrap:wrap;gap:16px}.card-header,.card-header h3{display:flex;align-items:center}.card-header h3{font-size:1.2rem;font-weight:700;gap:10px}.card-header h3 i{color:var(--primary-color)}.card-body{padding:24px}.card-footer{padding:16px 24px;border-top:1px solid var(--border-color);background:rgba(0,0,0,.02)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:20px;gap:20px;margin-bottom:30px}.stat-card{background:var(--card-bg);border-radius:var(--radius-md);padding:24px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow-sm);transition:var(--transition)}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.stat-icon{width:60px;height:60px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff}.bg-primary{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark))}.bg-success{background:linear-gradient(135deg,var(--success-color),#27ae60)}.bg-warning{background:linear-gradient(135deg,var(--warning-color),#e67e22)}.bg-info{background:linear-gradient(135deg,var(--info-color),#8e44ad)}.bg-danger{background:linear-gradient(135deg,var(--danger-color),#c0392b)}.stat-icon-small{width:40px;height:40px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff}.stat-info h3{font-size:1.8rem;font-weight:700;margin-bottom:4px}.stat-info p{color:var(--text-muted);font-size:.95rem}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));grid-gap:24px;gap:24px;margin-bottom:24px}.table-responsive{overflow-x:auto}.data-table{width:100%;border-collapse:collapse}.data-table td,.data-table th{padding:14px 16px;text-align:right;border-bottom:1px solid var(--border-color)}.data-table th{font-weight:600;color:var(--text-muted);font-size:.875rem;text-transform:uppercase;letter-spacing:.5px;background:rgba(0,0,0,.02)}.data-table tbody tr{transition:var(--transition)}.data-table tbody tr:hover{background:rgba(26,188,156,.05)}.data-table td{font-size:.95rem}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:20px;font-size:.8rem;font-weight:600}.status-active{background:rgba(46,204,113,.15);color:#27ae60}.status-inactive{background:hsla(184,9%,62%,.15);color:#7f8c8d}.status-present{background:rgba(46,204,113,.15);color:#27ae60}.status-absent{background:rgba(231,76,60,.15);color:#c0392b}.status-excused{background:rgba(243,156,18,.15);color:#d35400}.action-btns{display:flex;gap:8px}.action-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:var(--transition);background:var(--bg-color);color:var(--text-muted)}.action-btn:hover{background:var(--primary-color);color:#fff}.action-btn.delete:hover{background:var(--danger-color)}.filters-bar{display:flex;align-items:center;gap:16px;margin-bottom:24px;flex-wrap:wrap}.filters-bar.inline{margin-bottom:0}.filter-group{display:flex;align-items:center;gap:8px}.filter-group label{font-weight:600;color:var(--text-muted);font-size:.9rem;display:flex;align-items:center;gap:6px}.filter-group input,.filter-group select{padding:10px 14px;border:2px solid var(--border-color);border-radius:var(--radius-sm);background:var(--card-bg);min-width:150px}.modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:2000;align-items:center;justify-content:center;padding:20px}.modal.active{display:flex}.modal-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:var(--card-bg);border-radius:var(--radius-lg);width:100%;max-width:500px;max-height:90vh;overflow-y:auto;position:relative;z-index:1;box-shadow:var(--shadow-lg);animation:modalSlide .3s ease}.modal-content.modal-lg{max-width:800px}@keyframes modalSlide{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}.modal-header{padding:20px 24px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-size:1.2rem;font-weight:700}.modal-close{width:36px;height:36px;border-radius:50%;background:var(--bg-color);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--transition)}.modal-close:hover{background:var(--danger-color);color:#fff}.modal-body{padding:24px}.modal-footer{padding:16px 24px;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:12px}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:2px solid var(--border-color);border-radius:var(--radius-sm);background:var(--card-bg);transition:var(--transition)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary-color)}.notification{position:fixed;top:20px;left:50%;transform:translateX(-50%) translateY(-100px);background:var(--card-bg);padding:16px 24px;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:3000;display:flex;align-items:center;gap:12px;transition:transform .3s ease}.notification.show{transform:translateX(-50%) translateY(0)}.notification.success{border-right:4px solid var(--success-color)}.notification.error{border-right:4px solid var(--danger-color)}.notification.info{border-right:4px solid var(--secondary-color)}.tabs{display:flex;gap:8px;margin-bottom:24px;border-bottom:2px solid var(--border-color)}.tab-btn{padding:12px 24px;background:none;border:none;font-size:1rem;font-weight:600;color:var(--text-muted);position:relative;transition:var(--transition)}.tab-btn.active{color:var(--primary-color)}.tab-btn.active:after{content:"";position:absolute;bottom:-2px;left:0;right:0;height:3px;background:var(--primary-color);border-radius:3px 3px 0 0}.tab-content{display:none}.tab-content.active{display:block;animation:fadeIn .3s ease}.attendance-container{display:grid;grid-template-columns:350px 1fr;grid-gap:24px;gap:24px}.calendar-sidebar{display:flex;flex-direction:column;gap:20px}.calendar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border-color)}.calendar-header span{font-weight:700;font-size:1.1rem}.calendar-weekdays{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:4px;gap:4px;margin-bottom:8px}.calendar-weekdays div{text-align:center;font-size:.75rem;font-weight:600;color:var(--text-muted);padding:8px 0}.calendar-days{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:4px;gap:4px}.calendar-day{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);position:relative;font-size:.9rem;background:var(--bg-color)}.calendar-day:hover{background:rgba(26,188,156,.1)}.calendar-day.other-month{color:var(--text-muted);opacity:.5}.calendar-day.today{background:var(--primary-color);color:#fff;font-weight:700}.calendar-day.selected{box-shadow:0 0 0 2px var(--primary-color)}.calendar-day.has-data:after{content:"";position:absolute;bottom:4px;width:4px;height:4px;border-radius:50%;background:var(--success-color)}.calendar-day .day-status{display:flex;gap:1px;margin-top:2px}.calendar-day .status-dot{width:3px;height:3px;border-radius:50%}.calendar-day .status-dot.present{background:var(--success-color)}.calendar-day .status-dot.absent{background:var(--danger-color)}.calendar-day .status-dot.excused{background:var(--warning-color)}.calendar-quick-actions{display:flex;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border-color)}.calendar-quick-actions .btn{flex:1 1;justify-content:center}.month-stats{display:flex;flex-direction:column;gap:12px}.month-stat-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg-color);border-radius:var(--radius-sm)}.month-stat-item .stat-info span{display:block;font-size:1.2rem;font-weight:700}.month-stat-item .stat-info label{font-size:.8rem;color:var(--text-muted)}.attendance-main{display:flex;flex-direction:column;gap:20px}.selected-date-header{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;padding:24px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-md)}.date-info{gap:20px}.date-info,.day-number{display:flex;align-items:center}.day-number{width:70px;height:70px;background:hsla(0,0%,100%,.2);border-radius:var(--radius-md);justify-content:center;font-size:2rem;font-weight:800}.date-details h2{font-size:1.4rem;font-weight:700;margin-bottom:4px}.date-details p{opacity:.9;font-size:.95rem}.date-navigation{display:flex;align-items:center;gap:12px}.date-navigation .btn{background:hsla(0,0%,100%,.2);border-color:transparent;color:#fff}.date-navigation .btn:hover{background:hsla(0,0%,100%,.3)}.day-stats-bar{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px}.day-stat{background:var(--card-bg);padding:20px;border-radius:var(--radius-md);display:flex;align-items:center;gap:16px;box-shadow:var(--shadow-sm);transition:var(--transition)}.day-stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.day-stat i{width:50px;height:50px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.3rem}.day-stat.present i{background:rgba(46,204,113,.15);color:var(--success-color)}.day-stat.absent i{background:rgba(231,76,60,.15);color:var(--danger-color)}.day-stat.excused i{background:rgba(243,156,18,.15);color:var(--warning-color)}.day-stat.total i{background:rgba(52,152,219,.15);color:var(--secondary-color)}.day-stat div span{display:block;font-size:1.6rem;font-weight:700;color:var(--text-color)}.day-stat div label{font-size:.85rem;color:var(--text-muted)}.attendance-filters{background:var(--card-bg);padding:16px 20px;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin-bottom:0}.attendance-actions{margin-right:auto;display:flex;gap:8px}.attendance-list{display:flex;flex-direction:column;gap:12px}.attendance-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--bg-color);border-radius:var(--radius-md);transition:var(--transition);border:2px solid transparent}.attendance-item:hover{border-color:var(--primary-color);transform:translateX(-4px)}.student-info{gap:14px}.student-avatar,.student-info{display:flex;align-items:center}.student-avatar{width:48px;height:48px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:50%;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}.student-details h4{font-weight:600;font-size:1.05rem;margin-bottom:2px}.student-details p{font-size:.85rem;color:var(--text-muted)}.attendance-option,.attendance-options{display:flex;gap:8px}.attendance-option{padding:10px 20px;border-radius:var(--radius-md);border:2px solid var(--border-color);background:var(--card-bg);font-weight:600;transition:var(--transition);align-items:center;cursor:pointer}.attendance-option:hover{border-color:var(--primary-color);color:var(--primary-color)}.attendance-option.active{color:#fff}.attendance-option.active.present{background:var(--success-color);border-color:var(--success-color)}.attendance-option.active.absent{background:var(--danger-color);border-color:var(--danger-color)}.attendance-option.active.excused{background:var(--warning-color);border-color:var(--warning-color)}.weekly-view-section{animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.weekly-table-container{overflow-x:auto}.weekly-attendance-table{width:100%;border-collapse:collapse;min-width:700px}.weekly-attendance-table td,.weekly-attendance-table th{padding:12px;text-align:center;border:1px solid var(--border-color)}.weekly-attendance-table th{background:var(--bg-color);font-weight:600;font-size:.85rem}.weekly-attendance-table .student-name{text-align:right;font-weight:600}.weekly-attendance-table .status-cell{width:40px;height:40px;padding:0}.weekly-attendance-table .status-cell.present{background:rgba(46,204,113,.2);color:#27ae60}.weekly-attendance-table .status-cell.absent{background:rgba(231,76,60,.2);color:#c0392b}.weekly-attendance-table .status-cell.excused{background:rgba(243,156,18,.2);color:#d35400}.ranking-section{margin-bottom:30px}.ranking-section h3{margin-bottom:20px;display:flex;align-items:center;gap:10px}.ranking-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:20px;gap:20px}.ranking-card{background:var(--card-bg);border-radius:var(--radius-md);padding:20px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.ranking-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--primary-color)}.ranking-card.top-1:before{background:gold}.ranking-card.top-2:before{background:silver}.ranking-card.top-3:before{background:#cd7f32}.rank-number{width:50px;height:50px;background:var(--bg-color);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700}.top-1 .rank-number{background:gold;color:#333}.top-2 .rank-number{background:silver;color:#333}.top-3 .rank-number{background:#cd7f32;color:#fff}.ranking-info{flex:1 1}.ranking-info h4{font-size:1.1rem;margin-bottom:4px}.ranking-info p{color:var(--text-muted);font-size:.9rem}.ranking-progress{text-align:center}.ranking-progress span{display:block;font-size:1.5rem;font-weight:700;color:var(--primary-color)}.ranking-progress label{font-size:.8rem;color:var(--text-muted)}.groups-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:20px;gap:20px}.group-card{background:var(--bg-color);border-radius:var(--radius-md);padding:20px;transition:var(--transition)}.group-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.group-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.group-header h4{font-size:1.1rem}.group-level{padding:4px 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var(--border-color);border-radius:var(--radius-md);font-weight:600;transition:var(--transition);cursor:pointer}.settings-tab.active{background:var(--primary-color);border-color:var(--primary-color);color:#fff}.settings-content{display:none}.settings-content.active{display:block;animation:fadeIn .3s ease}.toggle-switch{position:relative;width:50px;height:26px}.toggle-switch input{opacity:0;width:0;height:0}.toggle-switch label{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:var(--border-color);border-radius:26px;transition:var(--transition)}.toggle-switch label:before{content:"";position:absolute;height:20px;width:20px;right:3px;bottom:3px;background:#fff;border-radius:50%;transition:var(--transition)}.toggle-switch input:checked+label{background:var(--primary-color)}.toggle-switch 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i{font-size:2.5rem;margin-bottom:8px}.data-action{display:flex;align-items:center;justify-content:space-between;padding:20px;background:var(--bg-color);border-radius:var(--radius-md);margin-bottom:16px}.data-action.danger{background:rgba(231,76,60,.1)}.data-action-info{display:flex;align-items:center;gap:16px}.data-action-info i{width:50px;height:50px;background:var(--card-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:var(--primary-color)}.data-action.danger .data-action-info i{color:var(--danger-color)}.data-action-info h4{font-size:1.1rem;margin-bottom:4px}.data-action-info p{color:var(--text-muted);font-size:.9rem}.activity-list{display:flex;flex-direction:column;gap:16px}.activity-item{gap:16px;padding:16px;background:var(--bg-color);border-radius:var(--radius-md)}.activity-icon,.activity-item{display:flex;align-items:center}.activity-icon{width:44px;height:44px;border-radius:50%;justify-content:center;font-size:1.1rem}.activity-icon.hifz{background:rgba(26,188,156,.15);color:var(--primary-color)}.activity-icon.attendance{background:rgba(52,152,219,.15);color:var(--secondary-color)}.activity-icon.revision{background:rgba(155,89,182,.15);color:var(--info-color)}.activity-details{flex:1 1}.activity-title{font-weight:600;margin-bottom:4px}.activity-meta,.activity-time{font-size:.85rem;color:var(--text-muted)}.top-students{display:flex;flex-direction:column;gap:12px}.top-student{gap:16px;padding:16px;background:var(--bg-color);border-radius:var(--radius-md)}.top-student,.top-student-rank{display:flex;align-items:center}.top-student-rank{width:36px;height:36px;background:var(--primary-color);color:#fff;border-radius:50%;justify-content:center;font-weight:700}.top-student-info{flex:1 1}.top-student-name{font-weight:600;margin-bottom:2px}.top-student-group{font-size:.85rem;color:var(--text-muted)}.top-student-progress{text-align:center}.top-student-progress span{display:block;font-size:1.2rem;font-weight:700;color:var(--primary-color)}.top-student-progress label{font-size:.75rem;color:var(--text-muted)}.rating{display:flex;gap:4px}.rating i{color:#f1c40f;font-size:.9rem}.progress-bar{width:100%;height:8px;background:var(--border-color);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:4px;transition:width .5s ease}@media (max-width:1200px){.attendance-container,.dashboard-grid{grid-template-columns:1fr}.calendar-sidebar{order:2}.attendance-main{order:1}}@media (max-width:992px){.sidebar{transform:translateX(100%)}.sidebar.open{transform:translateX(0)}.main-content,.sidebar.collapsed~.main-content{margin-right:0}.header-search{width:200px}.day-stats-bar,.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.page-content{padding:20px}.page-header{flex-direction:column;align-items:flex-start}.header-search{display:none}.day-stats-bar,.form-row,.stats-grid{grid-template-columns:1fr}.filter-group,.filters-bar{flex-direction:column;align-items:stretch}.filter-group input,.filter-group select{width:100%}.attendance-item{flex-direction:column;gap:16px;align-items:flex-start}.attendance-options{width:100%;justify-content:stretch}.attendance-option{flex:1 1;justify-content:center}.data-action{flex-direction:column;gap:16px;align-items:flex-start}.history-search{flex-direction:column;align-items:stretch}.history-search select{max-width:100%}.selected-date-header{flex-direction:column;text-align:center;gap:16px}.attendance-filters,.date-info{flex-direction:column}.attendance-actions{width:100%;margin-right:0;justify-content:stretch}.attendance-actions .btn{flex:1 1}}@media (max-width:480px){.auth-header{padding:30px 20px}.auth-header h1{font-size:1.4rem}.auth-form{padding:20px}.card-body,.page-content{padding:16px}.modal-content{margin:10px}.settings-tabs{flex-direction:column}.settings-tab{width:100%;justify-content:center}.calendar-days{gap:2px}.calendar-day{font-size:.8rem}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes slideIn{0%{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}.spinner{width:40px;height:40px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state i{font-size:4rem;margin-bottom:20px;color:var(--border-color)}.empty-state h4{font-size:1.2rem;margin-bottom:8px;color:var(--text-color)}.mobile-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:999}.mobile-overlay.active{display:block}@media print{.btn,.header,.modal,.notification,.sidebar{display:none!important}.main-content{margin:0!important}.card{box-shadow:none;border:1px solid #ddd}}