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ease;word-break:break-word}.student-name,.verification-badge{align-items:center;display:flex;font-weight:700}.verification-badge{background:#fff;border-radius:50%;color:#000;font-size:5px;height:8px;justify-content:center;width:8px}.lesson-count{color:#fff;font-size:.6rem!important;font-weight:500;margin:0;text-shadow:0 1px 3px #0009;transition:all .3s ease}.student-stats{gap:6px;margin-top:1px}.stat-item,.student-stats{display:flex;transition:all .3s ease}.stat-item{align-items:center;color:#fffc;font-size:.4rem;font-weight:500;gap:1px;text-shadow:0 1px 2px #0000004d}.stat-icon{height:6px;opacity:.8;width:6px}.follow-btn{background:#fff;border:none;border-radius:6px;bottom:6px;box-shadow:0 1px 2px #0000001a;color:#000;cursor:pointer;font-size:.4rem;font-weight:600;padding:2px 4px;position:absolute;right:6px;transition:all .3s ease;z-index:3}.follow-btn:hover{background:#f0f0f0;box-shadow:0 4px 12px #00000026;transform:translateY(-1px)}.student-folders-list{display:flex;flex-direction:column;gap:10px;padding:20px 0}.student-folders-list .student-folder-card{background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #0000000d;padding:10px 20px;width:100%}.student-folders-list .student-folder-card:hover{box-shadow:0 4px 12px #0000000f;transform:none}.student-folders-list .folder-icon{animation:gradientShift 4s ease infinite;background:linear-gradient(45deg,#212529,#343a40,#495057,#5a6268,#6c757d,#7a8288);background-size:400% 400%;border-radius:4px;box-shadow:0 1px 3px #00000014;height:45px;width:60px}.student-folders-list .folder-icon:before{background:#b8b9bb;height:8px;left:8px;top:-6px;width:30px}.student-folders-list .student-name{color:#000!important;font-size:1rem;font-weight:700!important;margin-bottom:6px;text-shadow:none!important}.student-card .student-name,.student-folder-card .student-name{color:#000!important;font-weight:500!important;text-shadow:none!important}.student-folders-list .lesson-count{font-size:.85rem;margin:0}.students-container{display:flex;flex-wrap:wrap;gap:20px;padding:20px}.student-card{background:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a;flex:1 1 300px;max-width:100%;padding:15px;transition:transform .2s ease}@media (max-width:768px){.student-card{flex:1 1 100%}}@media (max-width:480px){.students-container{padding:10px}}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{animation:modalSlideIn .3s ease-out;border-radius:16px;box-shadow:0 20px 60px #0003;max-height:80vh;max-width:500px;overflow:hidden}.modal-header{border-bottom:1px solid #e9ecef;justify-content:flex-start;margin-bottom:0;padding:24px 10px 10px 24px}.modal-header h2{font-weight:700;text-align:left}.modal-close-btn{align-items:center;background:none;border:none;border-radius:4px;color:#999;cursor:pointer;display:flex;font-size:24px;height:32px;justify-content:center;margin-left:auto;padding:4px;transition:all .2s ease;width:32px}.modal-close-btn:hover{background:#f8f9fa;color:#333}.modal-body{padding:5px 10px 10px}в

.add-options{display:flex;flex-direction:column;gap:10px}.add-option-btn{align-items:center;background:#fff;border:2px solid #e9ecef;border-radius:12px;cursor:pointer;display:flex;gap:16px;padding:10px;text-align:left;transition:all .2s ease;width:100%}.add-option-btn:hover{background:#fff5f2;border-color:#ee5a24;box-shadow:0 8px 25px #ee5a2426;transform:translateY(-2px)}.add-option-btn.student-option:hover{background:#f8f9ff;border-color:#007bff;box-shadow:0 8px 25px #007bff26}.add-option-btn.group-option:hover{background:#f8fff9;border-color:#28a745;box-shadow:0 8px 25px #28a74526}.option-icon{align-items:center;background:#f8f9fa;border-radius:12px;color:#6c757d;display:flex;flex-shrink:0;height:48px;justify-content:center;width:48px}.add-option-btn.student-option .option-icon{background:#e3f2fd;color:#007bff}.add-option-btn.group-option .option-icon{background:#e8f5e8;color:#28a745}.option-content h3{color:#333;font-size:1.1rem;font-weight:600;margin:0 0 4px;text-align:left!important}.option-content p{color:#6c757d;font-size:.9rem;line-height:1.4;margin:0}.invite-link-btn{align-items:center;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:1px solid #e2e8f0;border-radius:6px;box-shadow:0 1px 3px #0000000d;color:#475569;cursor:pointer;display:flex;font-size:.85rem;font-weight:500;gap:8px;justify-content:flex-start;margin-top:1px;padding:8px 12px;transition:all .2s ease;width:100%}.invite-link-btn:hover{background:linear-gradient(135deg,#f1f5f9,#e2e8f0);border-color:#cbd5e1;box-shadow:0 2px 6px #0000001a;transform:translateY(-1px)}.invite-link-btn:active{transform:translateY(0)}.invite-link-btn svg{color:#64748b;flex-shrink:0}.invite-link-btn span{flex:1 1;text-align:left}.status-badge{border-radius:12px;flex-shrink:0;font-size:.75rem;padding:2px 6px}.status-badge.registered{background:#dcfce7;color:#166534}.invite-link-modal .custom-modal-body{padding:20px}.invite-link-content{display:flex;flex-direction:column;gap:20px}.invite-link-field label{color:#374151;display:block;font-size:.9rem;font-weight:600;margin-bottom:8px}.link-input-group{display:flex;gap:8px}.invite-link-input-modal{background:#fff;border:1px solid #d1d5db;border-radius:6px;color:#374151;flex:1 1;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.875rem;padding:10px 12px;transition:all .2s ease}.invite-link-input-modal:focus{border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f61a;outline:none}.copy-link-btn-modal{align-items:center;background:linear-gradient(135deg,#3b82f6,#2563eb);border:none;border-radius:6px;box-shadow:0 1px 3px #0000001a;color:#fff;cursor:pointer;display:flex;font-size:.875rem;font-weight:500;gap:6px;padding:10px 16px;transition:all .2s ease;white-space:nowrap}.copy-link-btn-modal:hover{background:linear-gradient(135deg,#2563eb,#1d4ed8);box-shadow:0 2px 6px #00000026;transform:translateY(-1px)}.copy-link-btn-modal:active{transform:translateY(0)}.invite-status{align-items:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;display:flex;gap:12px;padding:12px}.status-indicator{flex-shrink:0;font-size:1.5rem}.status-text{color:#374151;font-size:.9rem}.invite-instructions{background:#fef3c7;border:1px solid #f59e0b;border-radius:6px;padding:16px}.invite-instructions h4{color:#92400e;font-size:.9rem;font-weight:500;margin:0 0 12px}.invite-instructions ol{color:#92400e;font-size:.85rem;line-height:1.5;margin:0;padding-left:20px}.invite-instructions li{margin-bottom:6px}.icon-buttons-row{display:flex;gap:12px;margin-bottom:16px}.action-buttons-group{margin-top:100px}.icon-btn{align-items:center;border:none;border-radius:12px;box-shadow:0 2px 8px #0000001a;cursor:pointer;display:flex;height:56px;justify-content:center;transition:all .3s ease;width:56px}.icon-btn.assessment{background:linear-gradient(135deg,#374151,#4b5563);box-shadow:0 0 20px #37415166,inset 0 1px 0 #ffffff1a;color:#fff}.icon-btn.chat{background:linear-gradient(135deg,#6b7280,#9ca3af);box-shadow:0 0 20px #6b728066,inset 0 1px 0 #ffffff1a;color:#fff}.icon-btn.invite-link,.icon-btn.schedule{background:linear-gradient(135deg,#d1d5db,#9ca3af);box-shadow:0 0 20px #d1d5db66,inset 0 1px 0 #ffffff1a;color:#fff}.icon-btn:hover{box-shadow:0 4px 16px #00000026;transform:translateY(-2px)}.icon-btn svg{height:24px;width:24px}.student-stats-overview{background:#0000!important;border:none!important;box-shadow:none!important;margin-top:-35px!important;padding:0!important}.student-profile-page.details-open .student-stats-overview{margin-top:20px!important}.stats-grid{grid-gap:15px;gap:15px;grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.stat-card{background:#f5f5f5;border-radius:10px;box-shadow:0 4px 16px 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solid #f5c6cb;color:#721c24}.lesson-indicator.pending{background:#f8f9fa;border:1px solid #dee2e6;color:#6c757d}.lesson-indicator:hover{box-shadow:0 2px 4px #0000001a;transform:scale(1.02)}.lesson-indicator.in_progress:hover{background:#ffeaa7}.lesson-indicator.pending:hover{background:#e9ecef;color:#495057}.lesson-indicator.event{background:#e3f2fd;border:1px solid #bbdefb;color:#1976d2}.lesson-indicator.event:hover{background:#bbdefb;color:#1565c0}.lesson-event.completed{background-color:#28a745}.lesson-event.in_progress{background-color:#ffeaa7;color:#333}.lesson-event.pending{background-color:#f8f9fa;border:1px solid #dee2e6;color:#6c757d}.day-grid .time-cell:last-child,.week-grid .time-cell:nth-child(7n){border-right:none}.day-grid .time-cell:last-child,.week-grid .time-cell:nth-last-child(-n+7){border-bottom:none}.day-grid .time-cell:first-child,.week-grid .time-cell:first-child{border-bottom:1px solid #eee}.modal-overlay{align-items:center;background:#00000052;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:2000}.modal-content{animation:modalIn .15s cubic-bezier(.4,1.4,.6,1) 1;background:#fff;border-radius:10px;box-shadow:0 8px 32px #0000002e;display:flex;flex-direction:column;gap:10px;max-width:300px;min-width:260px;padding:16px 14px 12px;width:100%}@keyframes modalIn{0%{opacity:0;transform:translateY(40px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-content h3{color:#222;font-size:15px;font-weight:700;margin:0 0 4px;text-align:center}.modal-row{align-items:center;color:#444;display:flex;font-size:13px;gap:6px;margin-bottom:0;padding-left:12px}.modal-row label{color:#666;font-size:12px;font-weight:500;min-width:64px;text-align:left}.modal-row input[type=date],.modal-row input[type=time]{font-family:inherit;font-size:13px;letter-spacing:.2px}.modal-row input[type=date],.modal-row input[type=time],.modal-row select{background:#fafbfc;border:1px solid #ddd;border-radius:4px;color:#222;font-size:13px;outline:none;padding:2px 5px;transition:border .2s}.modal-row input[type=date]:focus,.modal-row input[type=time]:focus,.modal-row select:focus{border:1.2px solid #222}.modal-actions{display:flex;gap:6px;justify-content:flex-end;margin-top:4px}.modal-actions button{background:#f5f5f5;border:none;border-radius:5px;box-shadow:0 1px 2px #0000000a;color:#222;cursor:pointer;font-size:13px;font-weight:600;padding:5px 14px;transition:background .18s,color .18s,box-shadow .18s}.modal-actions button:hover:not(:disabled){background:#ececec;color:#111}.modal-actions button:last-child{background:#222;color:#fff}.modal-actions button:last-child:hover:not(:disabled){background:#444}.modal-actions button:nth-child(2){background:#fff0f0;border:1px solid #f3bcbc;color:#d32f2f}.modal-actions button:nth-child(2):hover:not(:disabled){background:#d32f2f;border:1px solid #d32f2f;color:#fff}.item-indicator.event{background:#e3f2fd;border:1px solid #bbdefb;color:#1976d2}.item-indicator.event:hover{background:#bbdefb;color:#1565c0}.item-event.event{background-color:#e3f2fd;color:#1976d2}.item-event.event:hover{background-color:#bbdefb}.item-event.event.completed{background-color:#c8e6c9;color:#2e7d32}.item-event.event.in_progress{background-color:#fff3e0;color:#ffeaa7}.item-event.event.pending{background-color:#f3e5f5;color:#7b1fa2}.no-lessons{color:#666;font-style:italic;padding:40px 20px;text-align:center}@media (max-width:768px){.schedule-header{align-items:flex-start;flex-direction:column;gap:15px}.schedule-controls{justify-content:space-between;width:100%}.calendar-day{flex-shrink:1;height:auto;min-height:80px;padding:5px}.day-number{flex-shrink:0;font-size:14px}.lesson-indicator{flex-shrink:0;font-size:10px;min-height:16px;padding:2px 4px}.more-lessons{font-size:10px;margin-top:1px;padding:2px 4px}.lesson-item{align-items:flex-start;flex-direction:column;gap:10px}.lesson-time{min-width:auto}}.calendar-day.day-view{height:400px;min-height:400px;overflow-y:auto}.calendar-day.day-view .day-lessons{max-height:350px;overflow-y:auto}.calendar-day.day-view .lesson-indicator{font-size:14px;line-height:1.3;margin-bottom:8px;padding:8px}.calendar-week:only-child .calendar-day{height:200px;min-height:200px}.calendar-week:only-child .day-lessons{max-height:150px;overflow-y:auto}.calendar-week:only-child .calendar-day:only-child{max-width:none;width:100%}.calendar-week:only-child .calendar-day:only-child .day-number{font-size:24px;font-weight:700;margin-bottom:10px}.time-grid{grid-gap:0;background:#fff;border:none;display:grid;gap:0;grid-template-columns:35px 1fr;margin-left:auto;margin-right:auto;margin-top:10px;max-width:1200px}.time-labels{background:#0000;display:grid;grid-template-rows:15px repeat(24,28px);margin-left:-10px;position:relative;z-index:2}.time-label{align-items:flex-end;background:#0000;color:#b0b0b0;display:flex;font-size:9px;height:100%;line-height:1;padding-right:12px;pointer-events:none;text-align:right}.time-label.empty{color:#0000}.time-slots{display:grid;grid-template-rows:40px repeat(48,30px)}.time-slot{align-items:center;background-color:#fff;border-bottom:1px solid #eee;color:#999;display:flex;font-size:10px;justify-content:center;padding:5px}.time-slot.hour{border-bottom:1px solid #ddd;color:#999;font-weight:400}.time-slot.half-hour{border-bottom:1px solid #f5f5f5;color:#ccc;font-size:8px}.day-grid,.week-grid{border:none;display:grid}.week-grid{grid-template-columns:repeat(7,1fr)}.day-grid,.week-grid{grid-template-rows:40px repeat(24,28px)}.day-grid{grid-template-columns:1fr}.time-cell{background-color:#fff;border-bottom:1px solid #eee;border-right:1px solid #eee;padding:2px;position:relative}.time-cell:hover{background-color:#f8f8f8}.more-lessons{background:#f0f0f0;border:1px solid #ddd;border-radius:3px;color:#666;cursor:pointer;font-size:10px;font-weight:500;padding:2px 4px;text-align:center;transition:all .2s ease}.more-lessons:hover{background:#e0e0e0;box-shadow:0 1px 3px #0000001a;color:#333;transform:scale(1.05)}.selected-date-details{background:#fff;border-radius:12px;box-shadow:0 4px 20px #00000014;margin-top:30px;padding:25px;position:relative;z-index:1000}.selected-date-details h3{color:#333;font-size:20px;font-weight:600;margin:0 0 20px}.day-lessons-list{display:flex;flex-direction:column;gap:15px}.lesson-item{align-items:center;background:#f8f9fa;border-left:4px solid #333;border-radius:8px;display:flex;gap:15px;padding:15px;transition:all .2s ease}.lesson-item:hover{background:#f0f0f0;transform:translateX(2px)}.lesson-time{color:#333;font-size:14px;font-weight:600;min-width:80px}.lesson-info{flex:1 1}.lesson-title{color:#333;font-size:16px;font-weight:600;margin-bottom:4px}.lesson-student{color:#666;font-size:14px}.lesson-status{border-radius:20px;font-size:12px;font-weight:600;letter-spacing:.5px;padding:6px 12px;text-transform:uppercase}.lesson-status.in_progress{background:#ffeaa7;color:#856404}.lesson-status.done{background:#d4edda;color:#155724}.lesson-status.cancelled{background:#f8d7da;color:#721c24}.lesson-event{align-items:center;background-color:#ffeaa7;border:1px solid #ffeaa7;border-radius:3px;color:#856404;cursor:pointer;display:flex;font-size:11px;left:2px;min-height:20px;overflow:hidden;padding:2px 6px;position:absolute;right:2px;text-overflow:ellipsis;white-space:nowrap;z-index:1}.lesson-event:hover{box-shadow:0 2px 4px #0000001a}.lesson-event.in_progress:hover{background-color:#ffeaa7}.lesson-event.pending:hover{background-color:#e9ecef;color:#495057}.lesson-event.done{background-color:#d4edda;border:1px solid #c3e6cb;color:#155724}.lesson-event.cancelled{background-color:#f8d7da;border:1px solid #f5c6cb;color:#721c24}.lesson-event.event{background-color:#e3f2fd;border:1px solid #bbdefb;color:#1976d2}.lesson-event.event:hover{background-color:#bbdefb;color:#1565c0}.all-day-section{background:#f8f9fa;border-bottom:1px solid #eee;margin-bottom:10px;padding:8px 0}.all-day-events{display:flex;flex-wrap:wrap;gap:4px;padding:0 10px}.all-day-events.week-view{grid-gap:2px;display:grid;gap:2px;grid-template-columns:repeat(7,1fr);padding:0}.all-day-events.day-view{display:flex;flex-wrap:wrap;gap:4px;padding:0 10px;width:100%}.all-day-event{background:#ffeaa7;border:1px solid #ffeaa7;border-radius:4px;color:#856404;cursor:pointer;font-size:11px;max-width:120px;overflow:hidden;padding:4px 8px;text-overflow:ellipsis;white-space:nowrap}.all-day-event:hover{background:#ffeaa7;box-shadow:0 2px 4px #0000001a;color:#6c5ce7;transform:scale(1.02)}.all-day-event.lesson{background:#ffeaa7;border-color:#ffeaa7;color:#856404}.all-day-event.done{background:#d4edda;border-color:#c3e6cb;color:#155724}.all-day-event.in_progress{background:#ffeaa7;border-color:#ffeaa7;color:#856404}.all-day-event.pending{background:#f8f9fa;border-color:#dee2e6;color:#6c757d}.all-day-event.event{background:#e3f2fd;border-color:#bbdefb;color:#1976d2}.all-day-event.event:hover{background:#bbdefb;color:#1565c0}.all-day-cell{background-color:#f8f9fa;border-bottom:2px solid #ddd;display:flex;flex-direction:column;gap:2px;min-height:40px;padding:4px}.all-day-cell .all-day-event{margin:0;max-width:none}@media (max-width:480px){.calendar-day{height:auto;min-height:60px;padding:3px}.day-number{font-size:12px;margin-bottom:4px}.lesson-indicator{font-size:9px;min-height:14px;padding:1px 3px}.more-lessons{font-size:9px;margin-top:1px;padding:1px 3px}.calendar-grid,.calendar-weekdays{margin-left:40px;margin-right:20px}.weekday-header{font-size:12px;padding:10px 5px}}@font-face{font-display:swap;font-family:Next Sphere;font-style:normal;font-weight:400;src:url(../../static/media/NextSphere.6b8d1f77e4e9809503b5.otf) format("opentype")}.business-banner{align-items:flex-end;background-color:initial;background-position:50%;background-size:cover;border-radius:12px;box-shadow:0 4px 15px #0000001a;cursor:pointer;display:flex;height:120px;justify-content:flex-start;margin-bottom:25px;overflow:hidden;padding:30px 40px;position:relative}.business-banner:before{background:linear-gradient(0deg,#00000080,#0000);border-radius:12px;bottom:0;content:"";left:0;position:absolute;right:0;top:0}.business-banner .banner-content{bottom:30px;color:#fff;left:100px;position:absolute;text-align:left;z-index:1}.business-banner h1{color:#fff;font-family:Next Sphere!important;font-size:2.5rem;font-weight:700}.business-banner h1,.business-banner p{line-height:1.2;margin-bottom:0;margin-left:-50px;text-align:left}.business-banner p{color:#fffc;font-size:1rem}.business-logo{background-color:initial;border:none;border-radius:5px;box-shadow:0 2px 5px #0003;height:160px;position:absolute;right:40px;top:10px;width:auto;z-index:2}.business-banner-upload-overlay{align-items:center;background:#0006;border-radius:12px;bottom:0;color:#fff;display:flex;font-size:1.2rem;font-weight:600;justify-content:center;left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity .3s ease;z-index:3}.business-banner:hover .business-banner-upload-overlay{opacity:1}.sidebar-link,.sidebar-svg-icon{color:#b0b0b0;transition:color .2s}.sidebar-link.active,.sidebar-link:hover{color:#8a2be2}.sidebar-svg-icon svg{display:block;height:24px;width:24px}.business-container{background:#f8fafc;min-height:100vh;padding:0 40px 40px}.business-header{margin-bottom:2rem;padding:2rem 0;text-align:center}.business-header h1{color:#1f2937;font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.business-header p{color:#6b7280;font-size:1.125rem;margin:0 auto;max-width:600px}.kpi-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-bottom:48px}.kpi-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;overflow:hidden;padding:24px;position:relative;transition:all .3s ease}.kpi-card:before{background:linear-gradient(90deg,#667eea,#764ba2);content:"";height:4px;left:0;position:absolute;right:0;top:0}.kpi-card:hover{box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;transform:translateY(-4px)}.kpi-card.revenue:before{background:linear-gradient(90deg,#10b981,#059669)}.kpi-card.students:before{background:linear-gradient(90deg,#3b82f6,#1d4ed8)}.kpi-card.lessons:before{background:linear-gradient(90deg,#8b5cf6,#7c3aed)}.kpi-card.average:before{background:linear-gradient(90deg,#f59e0b,#d97706)}.kpi-card.utilization:before{background:linear-gradient(90deg,#ef4444,#dc2626)}.kpi-card.efficiency:before{background:linear-gradient(90deg,#06b6d4,#0891b2)}.kpi-icon{align-items:center;background:#f1f5f9;border-radius:12px;color:#64748b;display:flex;height:48px;justify-content:center;margin-bottom:16px;width:48px}.kpi-card.revenue .kpi-icon{background:#dcfce7;color:#166534}.kpi-card.students .kpi-icon{background:#dbeafe;color:#1e40af}.kpi-card.lessons .kpi-icon{background:#f3e8ff;color:#7c3aed}.kpi-card.average .kpi-icon{background:#fef3c7;color:#92400e}.kpi-card.utilization .kpi-icon{background:#fee2e2;color:#dc2626}.kpi-card.efficiency .kpi-icon{background:#cffafe;color:#0891b2}.kpi-content h3{color:#64748b;font-size:.875rem;font-weight:600;letter-spacing:.05em;margin-bottom:8px;text-transform:uppercase}.kpi-value{color:#1e293b;font-size:2rem;font-weight:700;line-height:1;margin-bottom:8px}.kpi-subtitle{color:#64748b;font-size:.875rem;margin:0}.kpi-change{font-size:.875rem;font-weight:600;margin-top:8px}.kpi-change.positive{color:#059669}.kpi-change.negative{color:#dc2626}.analytics-sections{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(400px,1fr))}.section-placeholder{background:#fff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;padding:32px;text-align:center;transition:all .3s ease}.section-placeholder:hover{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;transform:translateY(-2px)}.section-placeholder h3{color:#1e293b;font-size:1.25rem;font-weight:600;margin-bottom:12px}.section-placeholder p{color:#64748b;line-height:1.6;margin:0}.charts-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(2,1fr);margin-bottom:48px}.chart-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;padding:24px;transition:all .3s ease}.chart-card:hover{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;transform:translateY(-2px)}.chart-header{margin-bottom:20px}.chart-header h3{color:#1e293b;font-size:1.25rem;font-weight:600;margin-bottom:8px}.chart-header p{color:#64748b;font-size:.875rem;margin:0}.chart-container{height:300px;position:relative}.chart-card.insights{grid-column:span 2}.insights-content{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}.insight-item{align-items:flex-start;background:#f8fafc;border-left:4px solid #e2e8f0;border-radius:12px;display:flex;padding:16px;transition:all .3s ease}.insight-item:hover{box-shadow:0 4px 6px -1px #0000001a;transform:translateY(-1px)}.insight-item.positive{background:#f0fdf4;border-left-color:#22c55e}.insight-item.neutral{background:#f8fafc;border-left-color:#3b82f6}.insight-item.recommendation{background:#fef3c7;border-left-color:#f59e0b}.insight-item.warning{background:#fef2f2;border-left-color:#ef4444}.insight-icon{flex-shrink:0;font-size:1.5rem;margin-right:12px}.insight-text{color:#374151;font-size:.875rem;line-height:1.5}.insight-text strong{color:#1e293b;font-weight:600}@media (max-width:768px){.business-page{padding:16px}.business-header{margin-bottom:24px;padding:24px 0}.business-header h1{font-size:2rem}.kpi-grid{gap:16px;grid-template-columns:1fr;margin-bottom:32px}.kpi-card{padding:20px}.kpi-value{font-size:1.75rem}.analytics-sections{gap:16px;grid-template-columns:1fr}.section-placeholder{padding:24px}.charts-grid{gap:16px;margin-bottom:32px}.chart-card{padding:20px}.chart-container{height:250px}.insight-item{padding:12px}.insight-icon{font-size:1.25rem;margin-right:8px}.insight-text{font-size:.8rem}}@media (max-width:480px){.business-header h1{font-size:1.75rem}.business-header p{font-size:1rem}.kpi-card{padding:16px}.kpi-value{font-size:1.5rem}.chart-container{height:200px}.insights-content{gap:12px}.insight-item{padding:10px}}.student-analytics-section{margin-top:48px}.section-header{margin-bottom:40px;text-align:center}.section-header h2{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;background-clip:text;color:#1e293b;font-size:2rem;font-weight:700;margin-bottom:12px}.section-header p{color:#64748b;font-size:1.1rem;margin:0}.student-metrics-grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-bottom:48px}.metric-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;overflow:hidden;padding:24px;position:relative;transition:all .3s ease}.metric-card:before{content:"";height:4px;left:0;position:absolute;right:0;top:0}.metric-card.retention:before{background:linear-gradient(90deg,#10b981,#059669)}.metric-card.progress:before{background:linear-gradient(90deg,#3b82f6,#1d4ed8)}.metric-card.engagement:before{background:linear-gradient(90deg,#8b5cf6,#7c3aed)}.metric-card.completion:before{background:linear-gradient(90deg,#f59e0b,#d97706)}.metric-card:hover{box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px 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