:root{--navy:#1c3a5c;--navy-dark:#142b45;--teal:#2a9d8f;--bg:#f5f7fa;--card:#ffffff;--border:#dde3ea;--text:#1b2838;--muted:#6b7a8c;--danger:#c0392b}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:inherit;text-decoration:none}.shell{display:flex;min-height:100vh}.sidebar{width:210px;flex-shrink:0;background:var(--navy);color:#fff;display:flex;flex-direction:column;padding:16px 0}.sidebar .brand{font-weight:700;font-size:15px;padding:0 16px 16px}.sidebar .group-label{font-size:10px;text-transform:uppercase;letter-spacing:.08em;opacity:.55;padding:14px 16px 4px}.sidebar a.nav-item{display:block;padding:7px 16px;font-size:13px;opacity:.85}.sidebar a.nav-item.active,.sidebar a.nav-item:hover{background:var(--navy-dark);opacity:1}.sidebar a.nav-item.active{font-weight:600}.sidebar .session-box{margin-top:auto;padding:12px 16px;font-size:11px;opacity:.8;border-top:1px solid rgba(255,255,255,.15)}.main{flex:1 1;padding:24px 28px;max-width:1200px}.firewall-banner{background:#10151c;color:#9fb3c8;font-size:11px;padding:6px 28px;letter-spacing:.02em}h1{font-size:20px;margin-bottom:4px}.subtitle{color:var(--muted);margin-bottom:20px}.tiles{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}.tile{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:14px 18px;min-width:150px}.tile .k{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.tile .v{font-size:24px;font-weight:700;margin-top:2px}table.data{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:8px;overflow:hidden}table.data th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:10px 12px;background:#fafbfc}table.data td,table.data th{border-bottom:1px solid var(--border)}table.data td{padding:9px 12px;font-size:13px}table.data tr:last-child td{border-bottom:none}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--navy)}.login-card{background:var(--card);border-radius:10px;padding:32px;width:360px}.login-card h1{margin-bottom:20px;font-size:18px}.login-card label{display:block;font-size:12px;color:var(--muted);margin:12px 0 4px}.login-card input{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px}.login-card button{width:100%;margin-top:18px;padding:10px;border:none;border-radius:6px;background:var(--navy);color:#fff;font-size:14px;font-weight:600;cursor:pointer}.login-card button:hover{background:var(--navy-dark)}.login-card .error{color:var(--danger);font-size:12px;margin-top:10px}.login-card .qr{display:block;margin:12px auto}.login-card .hint{font-size:12px;color:var(--muted);margin-top:8px}