:root{--primary: #4F46E5;--primary-light: #818CF8;--danger: #EF4444;--success: #10B981;--warning: #F59E0B;--bg: #F8FAFC;--card: #FFFFFF;--text: #1E293B;--text-secondary: #64748B;--border: #E2E8F0;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--sidebar-width: 240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#4f46e5,#7c3aed)}.login-card{background:var(--card);border-radius:var(--radius);box-shadow:0 4px 24px #00000014;padding:48px 40px;width:100%;max-width:420px}.login-card h1{font-size:28px;font-weight:700;text-align:center;margin-bottom:8px;color:var(--primary)}.login-card .subtitle{text-align:center;color:var(--text-secondary);margin-bottom:32px;font-size:14px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--text)}.form-group input,.form-group select{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:8px;font-size:15px;transition:border-color .2s;background:var(--bg)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}.btn-primary{background:var(--primary);color:#fff;width:100%}.btn-primary:hover{background:#4338ca}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:#059669}.btn-warn{background:var(--warning);color:#fff}.btn-warn:hover{background:#d97706}.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:#eef2ff}.btn-sm{padding:6px 14px;font-size:13px}.btn-xs{padding:4px 10px;font-size:12px}.btn:disabled{opacity:.6;cursor:not-allowed}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--card);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:20px 24px;cursor:pointer;border-bottom:1px solid var(--border)}.sidebar-title{font-size:18px;font-weight:700;color:var(--primary);white-space:nowrap}.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:4px}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border:none;background:transparent;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .2s;text-align:left;width:100%}.nav-item:hover{background:var(--bg);color:var(--text)}.nav-item.active{background:#eef2ff;color:var(--primary);font-weight:600}.nav-icon{font-size:18px}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px}.sidebar-avatar{width:36px;height:36px;border-radius:18px;background:var(--primary-light);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}.main-wrapper{margin-left:var(--sidebar-width);flex:1;min-width:0}.app-main{max-width:1200px;margin:0 auto;padding:24px}.summary-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px}.summary-card{background:var(--card);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);display:flex;align-items:center;gap:16px;border-left:4px solid}.summary-blue{border-left-color:#3b82f6}.summary-green{border-left-color:#10b981}.summary-orange{border-left-color:#f59e0b}.summary-red{border-left-color:#ef4444}.summary-purple{border-left-color:#8b5cf6}.summary-icon{font-size:32px}.summary-value{font-size:28px;font-weight:700;line-height:1.2}.summary-label{font-size:13px;color:var(--text-secondary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-bottom:32px}.stat-card{background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-left:4px solid var(--primary);transition:transform .2s,box-shadow .2s}.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px #0000001a}.stat-card.locked{border-left-color:var(--danger)}.stat-card .stat-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}.stat-card .avatar{width:44px;height:44px;border-radius:22px;background:var(--primary-light);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;position:relative}.online-dot{position:absolute;bottom:0;right:0;width:12px;height:12px;border-radius:50%;border:2px solid white}.online-dot.online{background:#10b981}.online-dot.offline{background:#cbd5e1}.stat-card h3{font-size:16px;margin-bottom:4px}.stat-card .device-info{font-size:13px;color:var(--text-secondary)}.stat-card .stat-row{display:flex;justify-content:space-between;margin-top:16px;padding-top:12px;border-top:1px solid var(--border)}.stat-row .label{font-size:13px;color:var(--text-secondary)}.stat-row .value{font-size:14px;font-weight:600}.section-title{font-size:18px;font-weight:700;margin:24px 0 16px}.card{background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}.rules-table{width:100%;border-collapse:collapse}.rules-table th,.rules-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}.rules-table th{font-size:13px;font-weight:600;color:var(--text-secondary);background:var(--bg)}.rules-table tr.row-inactive{opacity:.5}.usage-bar{width:100%;height:8px;background:var(--border);border-radius:4px;overflow:hidden;margin-top:4px}.usage-bar-fill{height:100%;border-radius:4px;transition:width .5s}.usage-bar-fill.safe{background:var(--success)}.usage-bar-fill.warn{background:var(--warning)}.usage-bar-fill.danger{background:var(--danger)}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:600}.badge-locked{background:#fee2e2;color:#991b1b}.badge-active{background:#d1fae5;color:#065f46}.badge-paused{background:#fef3c7;color:#92400e}.badge-offline{background:#f1f5f9;color:#64748b}.badge-android{background:#e8f5e9;color:#2e7d32}.badge-ios{background:#e3f2fd;color:#1565c0}.add-rule-form{display:grid;grid-template-columns:1fr 1fr 100px auto;gap:12px;align-items:end;margin-bottom:20px}.preset-chip{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:2px solid var(--border);border-radius:20px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;background:var(--card);color:var(--text)}.preset-chip:hover{border-color:var(--primary);background:#eef2ff;color:var(--primary)}.info-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.info-item{display:flex;flex-direction:column;gap:4px;padding:12px 16px;background:var(--bg);border-radius:8px}.info-label{font-size:12px;color:var(--text-secondary)}.info-value{font-size:15px;font-weight:600}.empty-state{text-align:center;padding:48px 20px;color:var(--text-secondary)}.empty-state .empty-icon{font-size:48px;margin-bottom:12px}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}@keyframes spin{to{transform:rotate(360deg)}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:var(--card);border-radius:var(--radius);padding:32px;width:90%;max-width:480px;box-shadow:0 8px 40px #00000026}.modal-content h3{margin-bottom:20px;font-size:18px}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.tabs{display:flex;gap:4px;background:var(--bg);padding:4px;border-radius:8px;margin-bottom:20px;flex-wrap:wrap}.tab{padding:8px 20px;border-radius:6px;border:none;font-size:14px;font-weight:500;cursor:pointer;background:transparent;color:var(--text-secondary);transition:all .2s}.tab.active{background:var(--card);color:var(--primary);box-shadow:var(--shadow)}.back-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);cursor:pointer;margin-bottom:20px;background:none;border:none}@media (max-width: 1024px){.summary-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width: 768px){.sidebar{width:60px}.sidebar-title,.nav-item span:not(.nav-icon),.sidebar-user>div{display:none}.sidebar-logo{justify-content:center;padding:20px 0}.nav-item{justify-content:center}.sidebar-footer{padding:8px}.sidebar-avatar{margin:0 auto}.main-wrapper{margin-left:60px}.stats-grid{grid-template-columns:1fr}.summary-grid{grid-template-columns:repeat(2,1fr)}.add-rule-form{grid-template-columns:1fr}.login-card{padding:32px 24px}}@media (max-width: 480px){.summary-grid{grid-template-columns:1fr}.app-main{padding:16px}}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:10px;max-width:380px}.toast{display:flex;align-items:center;gap:10px;padding:14px 18px;border-radius:10px;font-size:14px;font-weight:500;box-shadow:0 4px 16px #0000001f;animation:toastIn .3s ease;line-height:1.4}.toast-icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.toast-error{background:#fef2f2;color:#991b1b;border:1px solid #FECACA}.toast-error .toast-icon{background:#ef4444;color:#fff}.toast-success{background:#f0fdf4;color:#065f46;border:1px solid #BBF7D0}.toast-success .toast-icon{background:#10b981;color:#fff}.toast-info{background:#eff6ff;color:#1e40af;border:1px solid #BFDBFE}.toast-info .toast-icon{background:#3b82f6;color:#fff}@keyframes toastIn{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}