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var(--color-gray-200);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);margin-bottom:var(--spacing-6);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--spacing-4)}.page-title{color:var(--color-text-primary);font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);margin:0;text-shadow:none}.user-controls{display:flex;align-items:center;gap:var(--spacing-4);flex-wrap:wrap}.user-email{color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);background:var(--color-gray-100);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--border-radius)}.view-controls{max-width:var(--container-max);margin:0 auto var(--spacing-4) auto;padding:0 var(--spacing-4)}.view-tabs{display:flex;gap:var(--spacing-2);flex-wrap:wrap;align-items:center}.view-tab{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-4);border:2px solid var(--color-gray-300);border-radius:var(--border-radius-md);background:var(--color-white);cursor:pointer;transition:all var(--transition-fast);color:var(--color-text-primary);font-weight:var(--font-weight-medium);text-decoration:none;font-size:var(--font-size-sm)}.view-tab:hover:not(:disabled){border-color:var(--color-primary);background:var(--color-primary-50);transform:translateY(-1px)}.view-tab.active{border-color:var(--color-primary);background:var(--color-primary);color:var(--color-white)}.view-tab:disabled{opacity:.6;cursor:not-allowed}.device-count{background:#fff3;color:inherit;padding:var(--spacing-1) var(--spacing-2);border-radius:var(--border-radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);min-width:20px;text-align:center}.view-tab.active .device-count{background:#ffffff4d}.page-header{max-width:var(--container-max);margin:0 auto var(--spacing-4) auto;padding:0 var(--spacing-4);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--spacing-4)}.page-subtitle{color:var(--color-text-secondary);font-size:var(--font-size-sm);margin:0}.sync-controls{display:flex;align-items:center;gap:var(--spacing-2)}.app-layout{height:100%;overflow:hidden}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-4);border:1px solid transparent;border-radius:var(--border-radius-md);font-family:var(--font-family-primary);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);line-height:1.2;text-decoration:none;cursor:pointer;transition:all var(--transition-fast);outline:none;min-height:var(--button-height);white-space:nowrap;-webkit-user-select:none;user-select:none;color:inherit;text-shadow:none;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.btn:focus-visible{box-shadow:0 0 0 3px #007bff40}.btn:disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.btn-primary{background-color:var(--color-primary);color:var(--color-white);border-color:var(--color-primary)}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-700);border-color:var(--color-primary-700);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background-color:var(--color-gray-200);color:var(--color-text-primary);border-color:var(--color-gray-300)}.btn-secondary:hover:not(:disabled){background-color:var(--color-gray-300);border-color:var(--color-gray-400)}.btn-success{background-color:var(--color-success);color:var(--color-white);border-color:var(--color-success)}.btn-success:hover:not(:disabled){background-color:var(--color-success-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-danger{background-color:var(--color-danger);color:var(--color-white)!important;border-color:var(--color-danger);text-shadow:none}.btn-danger:hover:not(:disabled){background-color:var(--color-danger-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-warning{background-color:var(--color-warning);color:var(--color-white);border-color:var(--color-warning)}.btn-warning:hover:not(:disabled){background-color:var(--color-warning-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-outline-primary{background-color:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn-outline-primary:hover:not(:disabled){background-color:var(--color-primary);color:var(--color-white)}.btn-outline-secondary{background-color:transparent;color:var(--color-gray-600);border-color:var(--color-gray-400)}.btn-outline-secondary:hover:not(:disabled){background-color:var(--color-gray-100);border-color:var(--color-gray-500)}.btn-outline-secondary{background:#ffffff1a;color:#fffc;border:2px solid rgba(255,255,255,.3)}.btn-outline-secondary:hover{background:#fff3;color:#fff;border-color:#ffffff80}.btn-sm{padding:var(--spacing-2) var(--spacing-3);font-size:var(--font-size-xs);min-height:2rem}.btn-lg{padding:var(--spacing-4) var(--spacing-6);font-size:var(--font-size-base);min-height:3rem}.btn-xl{padding:var(--spacing-5) var(--spacing-8);font-size:var(--font-size-lg);min-height:3.5rem}.btn-block{width:100%}.btn-loading{position:relative;pointer-events:none}.btn-loading:after{content:"";position:absolute;width:1rem;height:1rem;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin .8s linear infinite}.card{background-color:var(--color-card-background);border:1px solid var(--color-gray-200);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:all var(--transition-normal)}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card-header{padding:var(--spacing-4) var(--spacing-5);border-bottom:1px solid var(--color-gray-200);background-color:var(--color-gray-50)}.card-body{padding:var(--spacing-5)}.card-footer{padding:var(--spacing-4) var(--spacing-5);border-top:1px solid var(--color-gray-200);background-color:var(--color-gray-50)}.card-title{margin:0 0 var(--spacing-2) 0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.card-subtitle{margin:0 0 var(--spacing-3) 0;font-size:var(--font-size-sm);color:var(--color-text-secondary)}.card-text{margin:0 0 var(--spacing-4) 0;color:var(--color-text-primary)}.card-elevated{box-shadow:var(--shadow-lg)}.card-bordered{border:2px solid var(--color-gray-300)}.card-success{border-color:var(--color-success);background-color:var(--color-success-light)}.card-warning{border-color:var(--color-warning);background-color:var(--color-warning-light)}.card-danger{border-color:var(--color-danger);background-color:var(--color-danger-light)}.form-group{margin-bottom:var(--spacing-4)}.form-label{display:block;margin-bottom:var(--spacing-2);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.form-control{width:100%;padding:var(--input-padding);border:var(--input-border);border-radius:var(--input-border-radius);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-white);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-control:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #007bff1a}.form-control:disabled{background-color:var(--color-gray-100);color:var(--color-text-muted);cursor:not-allowed;opacity:.6}.form-control.is-invalid{border-color:var(--color-danger)}.form-control.is-invalid:focus{border-color:var(--color-danger);box-shadow:0 0 0 3px #dc35451a}.form-text{margin-top:var(--spacing-1);font-size:var(--font-size-xs);color:var(--color-text-muted)}.invalid-feedback{display:block;margin-top:var(--spacing-1);font-size:var(--font-size-xs);color:var(--color-danger)}.badge{display:inline-flex;align-items:center;padding:var(--spacing-1) var(--spacing-3);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.05em;border-radius:var(--border-radius-full);white-space:nowrap}.badge-primary{background-color:var(--color-primary);color:var(--color-white)}.badge-secondary{background-color:var(--color-gray-200);color:var(--color-text-primary)}.badge-success{background-color:var(--color-success);color:var(--color-white)}.badge-warning{background-color:var(--color-warning);color:var(--color-white)}.badge-danger{background-color:var(--color-danger);color:var(--color-white)}.badge-info{background-color:var(--color-info);color:var(--color-white)}.badge-outline-primary{background-color:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}.badge-outline-secondary{background-color:transparent;color:var(--color-gray-600);border:1px solid var(--color-gray-400)}.badge-lg{padding:var(--spacing-2) var(--spacing-4);font-size:var(--font-size-sm)}.status-indicator{display:inline-flex;align-items:center;gap:var(--spacing-2);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.status-indicator:before{content:"";width:8px;height:8px;border-radius:50%;flex-shrink:0}.status-indicator--online:before{background-color:var(--color-success);box-shadow:0 0 0 2px var(--color-success-light)}.status-indicator--offline:before{background-color:var(--color-danger);box-shadow:0 0 0 2px var(--color-danger-light)}.status-indicator--unknown:before{background-color:var(--color-gray-400);box-shadow:0 0 0 2px var(--color-gray-200)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:var(--color-overlay);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal-backdrop);padding:var(--spacing-4);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background-color:var(--color-card-background);border-radius:var(--border-radius-xl);box-shadow:var(--shadow-xl);max-width:90vw;max-height:90vh;overflow-y:auto;position:relative;z-index:var(--z-modal);animation:modalSlideIn var(--duration-normal) var(--transition-smooth)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-6);border-bottom:1px solid var(--color-gray-200)}.modal-title{margin:0;font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.modal-close{background:none;border:none;font-size:var(--font-size-xl);color:var(--color-text-muted);cursor:pointer;padding:var(--spacing-2);border-radius:var(--border-radius);transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;width:2rem;height:2rem}.modal-close:hover{background-color:var(--color-gray-100);color:var(--color-text-primary)}.modal-body{padding:var(--spacing-6)}.modal-footer{display:flex;align-items:center;justify-content:flex-end;gap:var(--spacing-3);padding:var(--spacing-6);border-top:1px solid var(--color-gray-200);background-color:var(--color-gray-50)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes modalSlideIn{0%{opacity:0;transform:scale(.95) translateY(-10px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn var(--duration-normal) var(--transition-smooth)}.animate-slide-in-up{animation:slideInUp var(--duration-normal) var(--transition-smooth)}.animate-slide-in-down{animation:slideInDown var(--duration-normal) var(--transition-smooth)}.app-layout{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);background-attachment:fixed}.app-layout:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 25% 25%,rgba(255,255,255,.1) 0%,transparent 50%),radial-gradient(circle at 75% 75%,rgba(255,255,255,.05) 0%,transparent 50%);pointer-events:none;z-index:1}.modern-header{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:none;border-bottom:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000001a;position:sticky;top:0;z-index:100;border-radius:0}.header-brand{display:flex;flex-direction:column;gap:var(--spacing-1)}.brand-logo{display:flex;align-items:center;gap:var(--spacing-3)}.logo-icon{font-size:2.5rem;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.brand-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0}.brand-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-weight:var(--font-weight-medium);margin:0}.header-actions{display:flex;align-items:center;gap:var(--spacing-6)}.user-info{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-2) var(--spacing-4);background:#ffffff80;border-radius:var(--border-radius-full);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.user-avatar{width:40px;height:40px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:var(--font-size-lg)}.user-details{display:flex;flex-direction:column;gap:var(--spacing-1)}.user-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.user-email{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.btn-modern{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3) var(--spacing-5);background:#ffffffe6;border:1px solid rgba(255,255,255,.3);border-radius:var(--border-radius-full);color:var(--color-text-primary);font-weight:var(--font-weight-medium);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all var(--transition-normal)}.btn-modern:hover{background:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #00000026}.btn-logout:hover{background:linear-gradient(135deg,#dc3545,#c82333);color:#fff;border-color:transparent}@media (max-width: 1024px){.modern-header{padding:var(--spacing-4, 16px) var(--spacing-5, 20px)}.header-brand{gap:var(--spacing-3, 12px)}.brand-title{font-size:var(--font-size-lg, 18px)}.brand-subtitle{font-size:var(--font-size-xs, 12px)}.header-actions{gap:var(--spacing-3, 12px)}.user-details{display:none}}@media (max-width: 768px){.modern-header{max-height:100px;min-height:60px;flex-direction:column;align-items:flex-start;gap:var(--spacing-3, 12px);padding:var(--spacing-3, 12px) var(--spacing-4, 16px)}.header-brand{gap:var(--spacing-2, 8px)}.header-actions{gap:var(--spacing-3, 12px)}.user-info{gap:var(--spacing-2, 8px)}.user-name{font-size:var(--font-size-sm, 14px)}}@media (max-width: 480px){.modern-header{padding:var(--spacing-2, 8px) var(--spacing-3, 12px)}.brand-logo{gap:var(--spacing-2, 8px)}.logo-icon{font-size:var(--font-size-lg, 18px)}.brand-title{font-size:var(--font-size-lg, 18px);line-height:1.2}.brand-subtitle{font-size:var(--font-size-xs, 12px);line-height:1.2}.header-actions{gap:var(--spacing-2, 8px)}.btn-modern{padding:var(--spacing-2, 8px);font-size:var(--font-size-xs, 12px)}}.app-navigation{display:none}.old-app-navigation{background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--border-radius-lg);margin:var(--spacing-2) var(--spacing-6) 0 var(--spacing-6);padding:var(--spacing-2);box-shadow:0 2px 8px #0000000f;position:sticky;top:var(--header-height);z-index:9;max-width:600px;margin-left:auto;margin-right:auto}.nav-container{max-width:var(--container-max);margin:0 auto}.nav-tabs{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-3)}.nav-tab{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);padding:var(--spacing-4) var(--spacing-5);background:transparent;border:2px solid transparent;border-radius:var(--border-radius-lg);color:var(--color-text-secondary);font-weight:var(--font-weight-medium);transition:all var(--transition-normal);position:relative;cursor:pointer}.nav-tab:not(:disabled):hover{background:#667eea1a;border-color:#667eea33;color:var(--color-text-primary);transform:translateY(-2px)}.nav-tab.active{background:linear-gradient(135deg,#667eea,#764ba2);border-color:transparent;color:#fff;box-shadow:0 4px 12px #667eea4d}.nav-tab:disabled{opacity:.5;cursor:not-allowed}.nav-icon{font-size:var(--font-size-2xl);line-height:1}.nav-label{font-size:var(--font-size-sm);text-align:center;white-space:nowrap}.nav-badge{position:absolute;top:var(--spacing-2);right:var(--spacing-2);background:#dc3545;color:#fff;font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);padding:var(--spacing-1) var(--spacing-2);border-radius:var(--border-radius-full);min-width:20px;text-align:center}.nav-tab.active .nav-badge{background:#ffffffe6;color:var(--color-text-primary)}@media (max-width: 768px){.modern-header{padding:var(--spacing-4)}.header-controls{display:flex;align-items:center;gap:var(--spacing-3);margin-left:auto}.header-control-group{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3);background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--border-radius-md);border:1px solid rgba(255,255,255,.2)}.view-toggle-btn{display:flex;align-items:center;gap:var(--spacing-1);padding:var(--spacing-2);background:transparent;border:1px solid rgba(255,255,255,.3);border-radius:var(--border-radius);color:#ffffffe6;cursor:pointer;transition:all var(--transition-fast)}.view-toggle-btn:hover{background:#ffffff1a;border-color:#ffffff80}.view-toggle-btn.active{background:#fff3;border-color:#fff9}.header-actions{flex-direction:row;gap:var(--spacing-2);align-items:flex-end}.user-info{order:2}.nav-tabs{grid-template-columns:repeat(2,1fr);gap:var(--spacing-2)}.nav-tab{padding:var(--spacing-3)}.nav-icon{font-size:var(--font-size-xl)}.nav-label{font-size:var(--font-size-xs)}}@media (max-width: 480px){.brand-title{font-size:var(--font-size-2xl)}.logo-icon{font-size:2rem}.user-details{display:none}.nav-tabs{grid-template-columns:1fr;gap:var(--spacing-2)}.nav-tab{flex-direction:row;justify-content:flex-start;text-align:left}.nav-icon{font-size:var(--font-size-lg)}}.content-area{background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--border-radius-xl);margin:0 var(--spacing-6) var(--spacing-6) var(--spacing-6);padding:var(--spacing-6);box-shadow:0 8px 32px #0000001a;position:relative;z-index:10;min-height:60vh}.content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-6);padding-bottom:var(--spacing-4);border-bottom:2px solid rgba(0,0,0,.05)}.content-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0;display:flex;align-items:center;gap:var(--spacing-3)}.content-stats{display:flex;gap:var(--spacing-6)}.stats-item{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-1)}.stats-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1}.stats-label{font-size:var(--font-size-xs);color:var(--color-text-secondary);font-weight:var(--font-weight-medium);text-transform:uppercase;letter-spacing:.05em}.devices-modern-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--spacing-6);margin-top:var(--spacing-6)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--spacing-12) var(--spacing-6);min-height:400px}.empty-state-icon{font-size:4rem;margin-bottom:var(--spacing-6);opacity:.5;filter:grayscale(.5)}.empty-state-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0 0 var(--spacing-3) 0}.empty-state-description{font-size:var(--font-size-base);color:var(--color-text-secondary);max-width:500px;line-height:var(--line-height-relaxed);margin:0 0 var(--spacing-6) 0}.empty-state-actions{display:flex;gap:var(--spacing-4);flex-wrap:wrap;justify-content:center}@media (max-width: 768px){.content-area{margin:0 var(--spacing-4) var(--spacing-4) var(--spacing-4);padding:var(--spacing-4)}.content-header{flex-direction:column;align-items:flex-start;gap:var(--spacing-4)}.content-stats{align-self:stretch;justify-content:space-around}.devices-modern-grid{grid-template-columns:1fr;gap:var(--spacing-4)}.empty-state{padding:var(--spacing-8) var(--spacing-4)}.empty-state-icon{font-size:3rem}.empty-state-actions{flex-direction:column;width:100%}.empty-state-actions .btn{width:100%}}@media (max-width: 480px){.content-title,.stats-value{font-size:var(--font-size-xl)}.devices-modern-grid{grid-template-columns:1fr}}.modern-notification{position:fixed;bottom:var(--spacing-6);right:var(--spacing-6);background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(40,167,69,.2);border-radius:var(--border-radius-lg);box-shadow:0 8px 32px #0000001a;z-index:1050;max-width:350px;transform:translateY(100px);opacity:0;transition:all var(--transition-normal);overflow:hidden}.modern-notification.show{transform:translateY(0);opacity:1}.notification-content{display:flex;align-items:center;gap:var(--spacing-3);padding:var(--spacing-4) var(--spacing-5)}.notification-icon{width:24px;height:24px;background:linear-gradient(135deg,var(--color-success),#20c997);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-sm);font-weight:var(--font-weight-bold)}.notification-text{font-size:var(--font-size-sm);color:var(--color-text-primary);font-weight:var(--font-weight-medium)}.notification-progress{height:3px;background:linear-gradient(90deg,var(--color-success),#20c997);border-radius:0 0 var(--border-radius-lg) var(--border-radius-lg);animation:progress 3s linear}@keyframes progress{0%{width:100%}to{width:0%}}@media (max-width: 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