:root{--blue: #2f6fed;--blue-dark: #1f4fb0;--sidebar: #1c2533;--sidebar-active: #2b3648;--bg: #f4f6fa;--card: #ffffff;--border: #e3e8ef;--text: #1a2231;--muted: #6b7686;--green: #1f9d57;--red: #d23b3b;--amber: #c98a1b}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}code,.mono,.eui{font-family:SF Mono,JetBrains Mono,Menlo,Consolas,monospace;font-size:.92em}.layout{display:flex;min-height:100vh}.sidebar{width:232px;background:var(--sidebar);color:#c5cdda;display:flex;flex-direction:column;flex-shrink:0}.brand{padding:18px 20px;font-weight:700;font-size:16px;color:#fff;letter-spacing:.3px;border-bottom:1px solid rgba(255,255,255,.07)}.brand small{display:block;font-weight:400;color:#8b96a8;font-size:11px;margin-top:2px}.nav{padding:10px 0;flex:1}.nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:#c5cdda;cursor:pointer;text-decoration:none;border-left:3px solid transparent}.nav a:hover{background:#ffffff0a}.nav a.active{background:var(--sidebar-active);color:#fff;border-left-color:var(--blue)}.nav .icon{width:16px;text-align:center;opacity:.85}.sidebar-foot{padding:14px 20px;font-size:11px;color:#6f7b8d;border-top:1px solid rgba(255,255,255,.07)}.sidebar-foot button{background:none;border:none;color:#8b96a8;cursor:pointer;padding:0;font-size:11px}.main{flex:1;display:flex;flex-direction:column;min-width:0}.breadcrumb{background:#fff;border-bottom:1px solid var(--border);padding:12px 28px;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;align-items:center}.breadcrumb .crumb-current{color:var(--text);font-weight:600}.content{padding:24px 28px;flex:1}.page-title{font-size:22px;font-weight:700;margin:0 0 4px}.page-sub{color:var(--muted);margin:0 0 20px}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:18px 20px;margin-bottom:18px}.card h3{margin:0 0 14px;font-size:15px}.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}.stat{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px 18px}.stat .v{font-size:26px;font-weight:700}.stat .l{color:var(--muted);font-size:12px;margin-top:2px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}tr:hover td{background:#fafbfd}td .eui{color:var(--text)}.label{color:var(--muted)}.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600}.badge.on{background:#e6f6ec;color:var(--green)}.badge.off{background:#fdeaea;color:var(--red)}.badge.neutral{background:#eef1f6;color:var(--muted)}.signal{font-variant-numeric:tabular-nums}.btn{background:var(--blue);color:#fff;border:none;border-radius:7px;padding:8px 14px;font-size:13px;font-weight:600;cursor:pointer}.btn:hover{background:var(--blue-dark)}.btn.ghost{background:#fff;color:var(--blue);border:1px solid var(--border)}.btn.danger{background:#fff;color:var(--red);border:1px solid var(--border)}.btn.sm{padding:5px 10px;font-size:12px}.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px}.toolbar .search{flex:1}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:7px;font-size:13px;font-family:inherit;background:#fff;color:var(--text)}textarea{font-family:SF Mono,Menlo,monospace;min-height:180px;resize:vertical}.field{margin-bottom:12px}.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.row{display:flex;gap:12px}.row>*{flex:1}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#141c2873;display:flex;align-items:flex-start;justify-content:center;padding-top:6vh;z-index:50}.modal{background:#fff;border-radius:12px;width:560px;max-width:92vw;max-height:86vh;overflow:auto;padding:22px 24px}.modal h2{margin:0 0 16px;font-size:18px}.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.login{display:flex;align-items:center;justify-content:center;min-height:100vh}.login .card{width:380px}.error-banner{background:#fdeaea;color:var(--red);padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px}.empty{color:var(--muted);padding:24px;text-align:center}.chips{display:flex;gap:6px;flex-wrap:wrap}.chip{background:#eef1f6;border-radius:6px;padding:2px 8px;font-size:12px}