*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--sidebar-bg:#1B2A4A;--sidebar-hover:#243556;--sidebar-active:#2563EB;--accent:#2563EB;--accent-hover:#1D4ED8;--accent-light:#DBEAFE;--bg-primary:#F1F5F9;--bg-card:#FFFFFF;--bg-dark:#0F172A;--text-primary:#0F172A;--text-secondary:#475569;--text-muted:#94A3B8;--border:#E2E8F0;--border-light:#F1F5F9;--success:#10B981;--success-bg:#ECFDF5;--success-border:#A7F3D0;--warning:#F59E0B;--warning-bg:#FFFBEB;--warning-border:#FDE68A;--danger:#EF4444;--danger-bg:#FEF2F2;--danger-border:#FECACA;--info:#3B82F6;--info-bg:#EFF6FF;--info-border:#BFDBFE;--radius:8px;--radius-lg:12px;--shadow:0 1px 3px rgba(0,0,0,0.06),0 1px 2px rgba(0,0,0,0.04);--shadow-lg:0 4px 12px rgba(0,0,0,0.08);--shadow-xl:0 8px 24px rgba(0,0,0,0.12);--font-sans:'DM Sans',system-ui,sans-serif;--font-mono:'JetBrains Mono',monospace;--transition:all .2s ease}
body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);font-size:14px;line-height:1.5;overflow-x:hidden}
.login-wrapper{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--bg-dark);position:relative;overflow:hidden}
.login-wrapper::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(37,99,235,0.12) 0%,transparent 70%)}
.login-box{background:var(--bg-card);border-radius:var(--radius-lg);padding:40px;width:380px;box-shadow:var(--shadow-xl);position:relative;z-index:1}
.login-box .logo{text-align:center;margin-bottom:32px}
.login-box .logo svg{width:40px;height:40px;color:var(--accent)}
.login-box .logo h1{font-size:20px;font-weight:600;margin-top:12px}
.login-box .logo p{font-size:13px;color:var(--text-muted);margin-top:4px}
.login-error{background:var(--danger-bg);border:1px solid var(--danger-border);color:#991B1B;padding:10px 12px;border-radius:var(--radius);font-size:13px;margin-bottom:16px;display:none}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-family:var(--font-sans);font-size:14px;transition:border-color .2s;background:var(--bg-card);color:var(--text-primary)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}
.form-group textarea{resize:vertical;min-height:80px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius);font-family:var(--font-sans);font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition);text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}
.btn-sm{padding:6px 12px;font-size:13px}.btn-xs{padding:4px 10px;font-size:12px}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:#059669}
.btn-danger{background:var(--danger);color:#fff}.btn-block{width:100%}
.app-layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--sidebar-bg);position:fixed;top:0;left:0;bottom:0;display:flex;flex-direction:column;z-index:100;transition:transform .3s}
.sidebar-header{padding:20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(255,255,255,0.08)}
.sidebar-header svg{width:28px;height:28px;color:var(--accent);flex-shrink:0}
.sidebar-header .brand{color:#fff;font-weight:600;font-size:15px}
.sidebar-header .brand span{display:block;font-size:11px;font-weight:400;color:rgba(255,255,255,0.5);margin-top:2px}
.sidebar-nav{flex:1;padding:12px 8px;overflow-y:auto}
.nav-section{margin-bottom:8px}
.nav-section-title{padding:8px 12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:rgba(255,255,255,0.35)}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:6px;color:rgba(255,255,255,0.7);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;text-decoration:none}
.nav-item:hover{background:var(--sidebar-hover);color:#fff}
.nav-item.active{background:var(--sidebar-active);color:#fff}
.nav-item svg{width:18px;height:18px;flex-shrink:0;opacity:.7}.nav-item.active svg{opacity:1}
.nav-badge{margin-left:auto;background:var(--danger);color:#fff;font-size:11px;font-weight:600;padding:2px 7px;border-radius:10px;min-width:20px;text-align:center}
.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,0.08)}
.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px;border-radius:6px;color:rgba(255,255,255,0.7);font-size:13px}
.sidebar-user .avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px;flex-shrink:0}
.main-content{margin-left:240px;flex:1;min-height:100vh}
.topbar{height:56px;background:var(--bg-card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:50}
.topbar-left{display:flex;align-items:center;gap:12px}.topbar-left h2{font-size:16px;font-weight:600}
.topbar-right{display:flex;align-items:center;gap:12px}
.topbar-time{font-family:var(--font-mono);font-size:13px;color:var(--text-muted)}
.page-content{padding:24px}
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0}
.status-dot.up,.status-dot.online{background:var(--success)}
.status-dot.down,.status-dot.offline{background:var(--danger);animation:pulse-red 2s infinite}
.status-dot.warning{background:var(--warning)}.status-dot.maintenance{background:var(--info)}.status-dot.unknown{background:var(--text-muted)}
@keyframes pulse-red{0%,100%{box-shadow:0 0 0 0 rgba(239,68,68,0.4)}50%{box-shadow:0 0 0 6px rgba(239,68,68,0)}}
.status-pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500}
.status-pill.up,.status-pill.online{background:var(--success-bg);color:#065F46;border:1px solid var(--success-border)}
.status-pill.down,.status-pill.offline{background:var(--danger-bg);color:#991B1B;border:1px solid var(--danger-border)}
.status-pill.warning{background:var(--warning-bg);color:#92400E;border:1px solid var(--warning-border)}
.status-pill.maintenance{background:var(--info-bg);color:#1E40AF;border:1px solid var(--info-border)}
.status-pill.unknown{background:var(--border-light);color:var(--text-muted);border:1px solid var(--border)}
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.kpi-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow);border:1px solid var(--border);transition:box-shadow .2s}.kpi-card:hover{box-shadow:var(--shadow-lg)}
.kpi-card .kpi-label{font-size:12px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em}
.kpi-card .kpi-value{font-size:28px;font-weight:700;margin:8px 0 4px;font-family:var(--font-mono)}
.kpi-card .kpi-sub{font-size:12px;color:var(--text-secondary)}
.kpi-card.success .kpi-value{color:var(--success)}.kpi-card.danger .kpi-value{color:var(--danger)}.kpi-card.warning .kpi-value{color:var(--warning)}.kpi-card.info .kpi-value{color:var(--accent)}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:8px}.section-header h3{font-size:15px;font-weight:600}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px;margin-bottom:24px}
.device-card{background:var(--bg-card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);border:1px solid var(--border);cursor:pointer;transition:var(--transition)}.device-card:hover{box-shadow:var(--shadow-lg);border-color:var(--accent)}
.device-card.no-hover{cursor:default}.device-card.no-hover:hover{border-color:var(--border)}
.device-card.status-down{border-left:3px solid var(--danger)}.device-card.status-warning{border-left:3px solid var(--warning)}.device-card.status-up{border-left:3px solid var(--success)}.device-card.status-maintenance{border-left:3px solid var(--info)}.device-card.status-unknown{border-left:3px solid var(--text-muted)}.device-card.status-online{border-left:3px solid var(--success)}.device-card.status-offline{border-left:3px solid var(--danger)}.device-card.status-accent{border-left:3px solid var(--accent)}
.device-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.device-card-header .device-name{font-weight:600;font-size:14px;display:flex;align-items:center;gap:8px}
.device-card-header .device-category{font-size:11px;color:var(--text-muted);background:var(--bg-primary);padding:2px 8px;border-radius:4px}
.device-card-meta{display:flex;gap:16px;font-size:12px;color:var(--text-secondary);margin-bottom:10px}.device-card-meta span{display:flex;align-items:center;gap:4px}
.device-card-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.metric-mini{text-align:center;padding:6px;background:var(--bg-primary);border-radius:6px}
.metric-mini .metric-label{font-size:10px;color:var(--text-muted);text-transform:uppercase}
.metric-mini .metric-val{font-size:14px;font-weight:600;font-family:var(--font-mono)}
.card{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--border);overflow:hidden}
.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.card-header h3{font-size:15px;font-weight:600}
.card-body{padding:0}.card-body-padded{padding:20px}
.table-responsive{overflow-x:auto}
table{width:100%;border-collapse:collapse}
table th{text-align:left;padding:10px 16px;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;background:var(--bg-primary);border-bottom:1px solid var(--border)}
table td{padding:10px 16px;font-size:13px;border-bottom:1px solid var(--border-light)}
table tr:last-child td{border-bottom:none}table tr:hover{background:var(--border-light)}
.severity-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:4px;font-size:11px;font-weight:600;text-transform:uppercase}
.severity-critical,.severity-emergency{background:var(--danger-bg);color:#991B1B;border:1px solid var(--danger-border)}
.severity-warning{background:var(--warning-bg);color:#92400E;border:1px solid var(--warning-border)}
.severity-info{background:var(--info-bg);color:#1E40AF;border:1px solid var(--info-border)}
.chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:16px;margin-bottom:24px}
.chart-card{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--border);padding:20px}
.chart-card h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text-secondary)}.chart-card canvas{max-height:200px}
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:200;display:flex;align-items:flex-start;justify-content:center;padding-top:40px;opacity:0;visibility:hidden;transition:all .25s;overflow-y:auto}.modal-overlay.show{opacity:1;visibility:visible}
.modal{background:var(--bg-card);border-radius:var(--radius-lg);width:700px;max-width:95vw;box-shadow:var(--shadow-xl);transform:translateY(-20px);transition:transform .25s;margin-bottom:40px}.modal-overlay.show .modal{transform:translateY(0)}.modal-wide{width:900px}
.modal-header{padding:20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-size:16px;font-weight:600}
.modal-close{background:none;border:none;cursor:pointer;color:var(--text-muted);padding:4px;border-radius:4px;transition:var(--transition)}.modal-close:hover{color:var(--danger);background:var(--danger-bg)}
.modal-body{padding:20px;max-height:65vh;overflow-y:auto}
.modal-footer{padding:16px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}
.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:20px}
.tab{padding:10px 20px;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:var(--transition)}.tab:hover{color:var(--text-primary)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.tab-content{display:none}.tab-content.active{display:block}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.detail-item{padding:12px;background:var(--bg-primary);border-radius:var(--radius)}
.detail-item .detail-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px}
.detail-item .detail-value{font-size:14px;font-weight:600;font-family:var(--font-mono)}
.gauge-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:20px}
.gauge-card{text-align:center;padding:16px;background:var(--bg-primary);border-radius:var(--radius-lg)}
.gauge-card .gauge-value{font-size:24px;font-weight:700;font-family:var(--font-mono)}
.gauge-card .gauge-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;margin-top:4px}
.gauge-card .gauge-bar{height:4px;background:var(--border);border-radius:2px;margin-top:8px;overflow:hidden}
.gauge-card .gauge-bar-fill{height:100%;border-radius:2px;transition:width .5s ease}
.empty-state{padding:40px 20px;text-align:center;color:var(--text-muted)}.empty-state svg{width:48px;height:48px;margin-bottom:12px;opacity:.4}.empty-state p{font-size:14px}
.toast-container{position:fixed;top:70px;right:24px;z-index:300;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 16px;border-radius:var(--radius);font-size:13px;font-weight:500;box-shadow:var(--shadow-lg);animation:slideIn .3s ease;max-width:400px}
.toast.success{background:var(--success);color:#fff}.toast.error{background:var(--danger);color:#fff}.toast.info{background:var(--accent);color:#fff}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.hidden{display:none!important}.mono{font-family:var(--font-mono)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.text-muted{color:var(--text-muted)}.mb-16{margin-bottom:16px}
@media(max-width:768px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0}.kpi-grid{grid-template-columns:repeat(2,1fr)}.device-grid{grid-template-columns:1fr}.chart-grid{grid-template-columns:1fr}.detail-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.modal{width:95vw}#menuBtn{display:flex!important}}