:root{--ink: #1a2332;--ink-muted: #5a6b7f;--surface: #f4f7fa;--surface-raised: #ffffff;--border: #e1e8ef;--primary: #1a7a8f;--primary-hover: #155f73;--accent: #e74c3c;--success: #27ae60;--warning: #f39c12;--info: #3498db;--critical: #c0392b}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--ink);background:var(--surface)}button,input{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:linear-gradient(180deg,#1a2332,#2a3547);color:#fff;padding:24px 0}.brand{padding:0 24px 24px;border-bottom:1px solid rgba(255,255,255,.1)}.brand-mark{display:flex;align-items:center;gap:12px}.brand strong,.brand small{display:block}.brand strong{font-size:15px}.brand small{font-size:12px;opacity:.7}.nav-list{list-style:none;padding:16px 0;margin:0}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 24px;cursor:pointer;transition:background .15s}.nav-item:hover{background:#ffffff14}.nav-item:active{transform:scale(.99)}.nav-item.is-active{background:#ffffff26;border-left:3px solid var(--primary)}.nav-dot{width:8px;height:8px;border-radius:50%;background:#fff6}.nav-item.is-active .nav-dot{background:#fff}.workspace{padding:24px 32px;overflow-y:auto}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}.context-line{color:var(--ink-muted);font-size:13px}.topbar-actions{display:flex;gap:12px}h1,h2,p,dl,dd{margin:0}h1{font-size:24px;font-weight:600;margin-bottom:8px}h2{font-size:16px;font-weight:600;margin-bottom:12px}.primary-action,.text-action{padding:8px 16px;border-radius:6px;border:none;font-weight:500;transition:all 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var(--border)}.metric-card p,.metric-card small{color:var(--ink-muted)}.metric-card p{font-size:32px;font-weight:600;color:var(--ink);margin:8px 0}.metric-card small{font-size:13px}.content-grid{display:grid;grid-template-columns:1fr;gap:24px}.events-panel,.incidents-panel,.devices-panel{background:var(--surface-raised);padding:20px;border-radius:8px;border:1px solid var(--border)}.panel-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--ink-muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px}td{color:var(--ink)}td strong,td span{display:block}td strong{font-weight:600}td span{color:var(--ink-muted)}tbody tr:hover{background:#f8fbfc}tbody tr{cursor:default}.empty-row{text-align:center;color:var(--ink-muted);padding:32px 16px}.pill{display:inline-block;padding:4px 10px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase}.pill-info{background:#e3f2fd;color:var(--info)}.pill-warn{background:#fff3e0;color:var(--warning)}.pill-error{background:#ffebee;color:var(--accent)}.pill-critical{background:#fce4ec;color:var(--critical)}.pill-new{background:#e3f2fd;color:var(--info)}.pill-acknowledged{background:#fff3e0;color:var(--warning)}.pill-in-progress{background:#e8f5e9;color:var(--success)}.pill-resolved{background:#f3e5f5;color:#8e24aa}.pill-closed{background:#eceff1;color:#546e7a}.pill-low{background:#f1f8e9;color:#689f38}.pill-medium{background:#fff8e1;color:#f57c00}.pill-high{background:#ffebee;color:#d32f2f}.pill-online{background:#e8f5e9;color:var(--success)}.pill-offline{background:#eceff1;color:#546e7a}.pill-device-error{background:#ffebee;color:var(--accent)}@media(max-width:820px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.workspace{padding:16px}.summary-strip{grid-template-columns:repeat(2,1fr)}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}