@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";
.demo-page{color:#111827;background:#f9fafb;min-height:100vh;font-family:Inter,system-ui,sans-serif}.demo-banner{z-index:100;color:#fff;background:linear-gradient(135deg,#1e3a8a,#2563eb);justify-content:center;align-items:center;gap:16px;padding:12px 24px;font-size:14px;font-weight:500;display:flex;position:fixed;top:0;left:0;right:0;box-shadow:0 2px 8px #2563eb4d}.demo-banner-dot{background:#34d399;border-radius:50%;width:8px;height:8px;animation:2s ease-in-out infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.5)}}.demo-banner span{opacity:.7;font-weight:400}.demo-banner-exit{color:#fff;cursor:pointer;background:#ffffff26;border:1px solid #ffffff40;border-radius:9999px;padding:6px 20px;font-size:13px;font-weight:600;text-decoration:none;transition:all .2s}.demo-banner-exit:hover{background:#ffffff40}.demo-layout{padding-top:48px;display:flex}.demo-sidebar{z-index:40;background:#fff;border-right:1px solid #e5e7eb;flex-direction:column;width:260px;height:calc(100vh - 48px);transition:transform .3s;display:flex;position:fixed;top:48px;left:0}.demo-sidebar-logo{border-bottom:1px solid #f3f4f6;align-items:center;gap:10px;padding:24px 24px 20px;display:flex}.demo-sidebar-logo img{width:auto;height:28px}.demo-sidebar-logo span{color:#111827;font-size:18px;font-weight:700}.demo-sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:16px 12px;display:flex;overflow-y:auto}.demo-nav-item{color:#6b7280;cursor:pointer;text-align:left;background:0 0;border:none;border-radius:10px;align-items:center;gap:12px;width:100%;padding:10px 16px;font-family:inherit;font-size:14px;font-weight:500;transition:all .15s;display:flex;position:relative}.demo-nav-item:hover{color:#111827;background:#f3f4f6}.demo-nav-item.active{color:#2563eb;background:#eff6ff;font-weight:600}.demo-nav-item.active:before{content:"";background:#2563eb;border-radius:0 4px 4px 0;width:3px;position:absolute;top:8px;bottom:8px;left:0}.demo-nav-badge{color:#fff;text-align:center;background:#ef4444;border-radius:9999px;min-width:20px;margin-left:auto;padding:2px 8px;font-size:11px;font-weight:700}.demo-sidebar-user{border-top:1px solid #f3f4f6;align-items:center;gap:12px;padding:16px 20px;display:flex}.demo-sidebar-avatar{color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;font-weight:700;display:flex}.demo-sidebar-user-info{flex:1;min-width:0}.demo-sidebar-user-name{color:#111827;font-size:13px;font-weight:600}.demo-sidebar-user-role{color:#9ca3af;font-size:12px}.demo-main{flex:1;max-width:calc(100vw - 260px);margin-left:260px;padding:32px}.demo-header{margin-bottom:32px}.demo-header h1{color:#111827;margin-bottom:4px;font-size:28px;font-weight:800}.demo-header p{color:#6b7280;font-size:15px}.demo-stats-grid{grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:32px;display:grid}.demo-stat-card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:24px;transition:all .2s;position:relative;overflow:hidden}.demo-stat-card:hover{border-color:#d1d5db;box-shadow:0 4px 12px #0000000d}.demo-stat-card:before{content:"";height:3px;position:absolute;top:0;left:0;right:0}.demo-stat-card.blue:before{background:#3b82f6}.demo-stat-card.green:before{background:#10b981}.demo-stat-card.purple:before{background:#8b5cf6}.demo-stat-card.amber:before{background:#f59e0b}.demo-stat-icon{border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;margin-bottom:16px;display:flex}.demo-stat-icon.blue{color:#3b82f6;background:#eff6ff}.demo-stat-icon.green{color:#10b981;background:#ecfdf5}.demo-stat-icon.purple{color:#8b5cf6;background:#f5f3ff}.demo-stat-icon.amber{color:#f59e0b;background:#fffbeb}.demo-stat-value{color:#111827;margin-bottom:4px;font-size:32px;font-weight:800;line-height:1}.demo-stat-label{color:#6b7280;font-size:13px;font-weight:500}.demo-stat-trend{align-items:center;gap:4px;margin-top:8px;font-size:12px;font-weight:600;display:flex}.demo-stat-trend.up{color:#10b981}.demo-stat-trend.down{color:#ef4444}.demo-charts-row{grid-template-columns:1.5fr 1fr;gap:20px;margin-bottom:32px;display:grid}.demo-panel{background:#fff;border:1px solid #e5e7eb;border-radius:16px;overflow:hidden}.demo-panel-header{border-bottom:1px solid #f3f4f6;justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.demo-panel-title{color:#111827;font-size:16px;font-weight:700}.demo-panel-badge{color:#2563eb;background:#eff6ff;border-radius:9999px;padding:4px 12px;font-size:12px;font-weight:600}.demo-panel-body{padding:24px}.demo-mobile-card{color:#fff;cursor:pointer;text-align:left;background:linear-gradient(135deg,#1e3a8a,#3b82f6);border:none;border-radius:20px;width:100%;margin-bottom:32px;padding:32px;transition:all .3s;position:relative;overflow:hidden}.demo-mobile-card:hover{transform:translateY(-2px);box-shadow:0 12px 32px #2563eb4d}.demo-mobile-card:after{content:"";background:#ffffff0d;border-radius:50%;width:300px;height:300px;position:absolute;top:-50%;right:-30%}.demo-mobile-card-content{z-index:1;align-items:center;gap:24px;display:flex;position:relative}.demo-mobile-card-icon{background:#ffffff26;border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;width:64px;height:64px;display:flex}.demo-mobile-card-text h3{margin-bottom:4px;font-size:20px;font-weight:700}.demo-mobile-card-text p{opacity:.8;font-size:14px}.demo-mobile-card-arrow{opacity:.6;margin-left:auto}.demo-activity-item{border-bottom:1px solid #f3f4f6;align-items:flex-start;gap:12px;padding:14px 0;display:flex}.demo-activity-item:last-child{border-bottom:none}.demo-activity-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px;margin-top:6px}.demo-activity-dot.blue{background:#3b82f6}.demo-activity-dot.green{background:#10b981}.demo-activity-dot.amber{background:#f59e0b}.demo-activity-dot.red{background:#ef4444}.demo-activity-text{color:#374151;flex:1;font-size:13px;line-height:1.5}.demo-activity-time{color:#9ca3af;white-space:nowrap;font-size:12px}.demo-modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:200;background:#0009;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.demo-modal{background:#fff;border-radius:24px;width:100%;max-width:1100px;max-height:90vh;display:flex;overflow:hidden;box-shadow:0 24px 48px #0003}.demo-modal-close{cursor:pointer;color:#6b7280;z-index:10;background:#f3f4f6;border:none;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;transition:all .15s;display:flex;position:absolute;top:16px;right:16px}.demo-modal-close:hover{color:#111827;background:#e5e7eb}.demo-modal-left{flex-direction:column;flex:1;padding:40px;display:flex;position:relative}.demo-modal-left h2{color:#111827;margin-bottom:8px;font-size:24px;font-weight:800}.demo-modal-left>p{color:#6b7280;margin-bottom:28px;font-size:14px}.demo-method-buttons{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:28px;display:grid}.demo-method-btn{cursor:pointer;text-align:left;background:#fff;border:2px solid #e5e7eb;border-radius:14px;align-items:center;gap:12px;padding:14px 18px;font-family:inherit;transition:all .2s;display:flex}.demo-method-btn:hover{background:#f8faff;border-color:#3b82f6}.demo-method-btn.active{background:#eff6ff;border-color:#3b82f6}.demo-method-btn-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.demo-method-btn-icon.qr{color:#3b82f6;background:#eff6ff}.demo-method-btn-icon.code{color:#8b5cf6;background:#f5f3ff}.demo-method-btn-icon.ble{color:#10b981;background:#ecfdf5}.demo-method-btn-icon.bio{color:#f97316;background:#fff7ed}.demo-method-btn-text{color:#111827;font-size:14px;font-weight:600}.demo-method-btn-sub{color:#9ca3af;font-size:12px;font-weight:400}.demo-sim-status{text-align:center;background:#f9fafb;border-radius:16px;flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:200px;padding:24px;display:flex}.demo-sim-status h4{color:#111827;margin-bottom:8px;font-size:16px;font-weight:700}.demo-sim-status p{color:#6b7280;font-size:13px}.demo-modal-right{background:#f3f4f6;justify-content:center;align-items:center;width:340px;padding:40px 20px;display:flex}.demo-phone{background:#111827;border-radius:40px;width:280px;height:560px;padding:12px;position:relative;box-shadow:0 8px 32px #0000004d,inset 0 0 0 2px #374151}.demo-phone-notch{z-index:10;background:#111827;border-radius:0 0 16px 16px;width:100px;height:28px;position:absolute;top:12px;left:50%;transform:translate(-50%)}.demo-phone-screen{background:#fff;border-radius:30px;flex-direction:column;width:100%;height:100%;display:flex;overflow:hidden}.demo-phone-statusbar{color:#111827;justify-content:space-between;align-items:center;padding:14px 20px 6px;font-size:12px;font-weight:600;display:flex}.demo-phone-header{color:#fff;background:linear-gradient(135deg,#1e3a8a,#2563eb);align-items:center;gap:8px;padding:16px 20px;display:flex}.demo-phone-header-title{font-size:16px;font-weight:700}.demo-phone-body{flex-direction:column;flex:1;padding:16px;display:flex;overflow-y:auto}.demo-phone-class-info{text-align:center;padding:12px 0 16px}.demo-phone-class-name{color:#111827;font-size:16px;font-weight:700}.demo-phone-class-sub{color:#6b7280;margin-top:2px;font-size:12px}.demo-phone-live-badge{color:#059669;background:#ecfdf5;border-radius:9999px;align-items:center;gap:6px;margin-top:8px;padding:4px 12px;font-size:11px;font-weight:700;display:inline-flex}.demo-phone-live-dot{background:#10b981;border-radius:50%;width:6px;height:6px;animation:1.5s ease-in-out infinite pulse-dot}.demo-phone-qr{flex-direction:column;flex:1;align-items:center;padding:16px 0;display:flex}.demo-phone-qr-box{background:#f9fafb;border:2px solid #e5e7eb;border-radius:16px;grid-template-rows:repeat(7,1fr);grid-template-columns:repeat(7,1fr);gap:2px;width:140px;height:140px;margin-bottom:12px;padding:8px;display:grid}.demo-qr-cell{border-radius:2px;transition:background .15s}.demo-qr-cell.filled{background:#111827}.demo-qr-cell.empty{background:0 0}.demo-phone-counter{text-align:center;padding:12px 0}.demo-phone-counter-value{color:#2563eb;font-variant-numeric:tabular-nums;font-size:40px;font-weight:800;line-height:1}.demo-phone-counter-label{color:#6b7280;margin-top:4px;font-size:12px}.demo-phone-avatars{flex-wrap:wrap;justify-content:center;gap:6px;padding:8px 0;display:flex}.demo-phone-avatar{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:10px;font-weight:700;display:flex}.demo-phone-code-display{text-align:center;padding:20px 0}.demo-phone-code-value{letter-spacing:12px;color:#111827;font-variant-numeric:tabular-nums;font-size:44px;font-weight:800}.demo-phone-code-timer{color:#6b7280;justify-content:center;align-items:center;gap:6px;margin-top:8px;font-size:13px;display:flex}.demo-phone-ble-scan{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:24px 0;display:flex}.demo-ble-ring{border:3px solid #10b981;border-radius:50%;justify-content:center;align-items:center;width:120px;height:120px;margin-bottom:16px;display:flex;position:relative}.demo-ble-ring:before,.demo-ble-ring:after{content:"";border:2px solid #10b9814d;border-radius:50%;animation:2s ease-out infinite ble-pulse;position:absolute}.demo-ble-ring:before{width:150px;height:150px}.demo-ble-ring:after{width:180px;height:180px;animation-delay:.5s}@keyframes ble-pulse{0%{opacity:1;transform:scale(.8)}to{opacity:0;transform:scale(1.2)}}.demo-phone-biometric{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:24px 0;display:flex}.demo-bio-circle{border-radius:50%;justify-content:center;align-items:center;width:100px;height:100px;margin-bottom:16px;transition:all .5s;display:flex}.demo-bio-circle.scanning{background:#fef3c7;border:3px solid #f59e0b;animation:1.5s ease-in-out infinite bio-glow}.demo-bio-circle.verified{background:#d1fae5;border:3px solid #10b981}@keyframes bio-glow{0%,to{box-shadow:0 0 #f59e0b4d}50%{box-shadow:0 0 0 12px #f59e0b00}}.demo-phone-success{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:24px 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1fr;gap:20px;min-height:400px;display:grid}.demo-notes-folders{flex-direction:column;gap:4px;display:flex}.demo-note-folder{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:12px;align-items:center;gap:12px;width:100%;padding:12px 16px;font-family:inherit;transition:all .15s;display:flex}.demo-note-folder:hover{background:#f3f4f6}.demo-note-folder.active{background:#eff6ff}.demo-note-folder-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.demo-note-folder-name{color:#111827;font-size:14px;font-weight:600}.demo-note-folder-count{color:#9ca3af;font-size:12px}.demo-notes-list{flex-direction:column;gap:12px;display:flex}.demo-note-item{cursor:pointer;background:#fff;border:1px solid #e5e7eb;border-radius:14px;align-items:center;gap:16px;padding:16px 20px;transition:all .15s;display:flex}.demo-note-item:hover{border-color:#3b82f6;box-shadow:0 2px 8px #3b82f61a}.demo-note-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.demo-note-icon.pdf{color:#ef4444;background:#fef2f2}.demo-note-icon.ppt{color:#f97316;background:#fff7ed}.demo-note-icon.doc{color:#3b82f6;background:#eff6ff}.demo-note-info{flex:1}.demo-note-name{color:#111827;font-size:14px;font-weight:600}.demo-note-meta{color:#9ca3af;margin-top:2px;font-size:12px}.demo-note-size{color:#6b7280;font-size:13px;font-weight:500}.demo-assignments-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;display:grid}.demo-assignment-card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:24px;transition:all .2s}.demo-assignment-card:hover{border-color:#d1d5db;box-shadow:0 4px 12px #0000000d}.demo-assignment-header{justify-content:space-between;align-items:start;margin-bottom:12px;display:flex}.demo-assignment-subject{text-transform:uppercase;letter-spacing:.05em;border-radius:6px;padding:4px 10px;font-size:12px;font-weight:700}.demo-assignment-subject.cs{color:#2563eb;background:#eff6ff}.demo-assignment-subject.math{color:#7c3aed;background:#f5f3ff}.demo-assignment-subject.phy{color:#059669;background:#ecfdf5}.demo-assignment-subject.dbms{color:#ea580c;background:#fff7ed}.demo-assignment-status{border-radius:6px;padding:4px 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#0003}.demo-tour-step{color:#3b82f6;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:12px;font-weight:700}.demo-tour-title{color:#111827;margin-bottom:8px;font-size:18px;font-weight:800}.demo-tour-desc{color:#6b7280;margin-bottom:20px;font-size:14px;line-height:1.6}.demo-tour-actions{justify-content:space-between;align-items:center;display:flex}.demo-tour-dots{gap:6px;display:flex}.demo-tour-dot{background:#e5e7eb;border-radius:50%;width:8px;height:8px;transition:all .2s}.demo-tour-dot.active{background:#3b82f6;border-radius:4px;width:24px}.demo-tour-btns{gap:8px;display:flex}.demo-tour-btn-skip{color:#6b7280;cursor:pointer;background:0 0;border:none;border-radius:10px;padding:8px 16px;font-family:inherit;font-size:14px;font-weight:500}.demo-tour-btn-next{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:10px;padding:8px 20px;font-family:inherit;font-size:14px;font-weight:600;transition:background .15s}.demo-tour-btn-next:hover{background:#1d4ed8}@media (max-width:1024px){.demo-stats-grid{grid-template-columns:repeat(2,1fr)}.demo-charts-row,.demo-notes-layout{grid-template-columns:1fr}.demo-modal{flex-direction:column}.demo-modal-right{width:100%;padding:24px}}@media (max-width:768px){.demo-sidebar{transform:translate(-100%)}.demo-sidebar.open{transform:translate(0)}.demo-main{max-width:100vw;margin-left:0;padding:20px}.demo-stats-grid{grid-template-columns:1fr 1fr}.demo-method-buttons,.demo-assignments-grid{grid-template-columns:1fr}}@media (max-width:480px){.demo-stats-grid{grid-template-columns:1fr}}