:root{--bg:#f5f7fb;--surface:#fff;--text:#162033;--muted:#6b7280;--line:#e5e7eb;--brand:#2446d8;--brand-soft:#eef2ff}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);margin:0;padding:0;font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.shell{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.sidebar{color:#fff;background:#101828;padding:24px 18px}.logo{margin-bottom:28px;font-size:26px;font-weight:800}.nav{gap:8px;display:grid}.nav a{color:#d0d5dd;border-radius:9px;padding:11px 12px}.nav a:hover,.nav a.active{color:#fff;background:#1d2939}.content{padding:28px}.topbar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.company-select{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 12px}.grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.card{background:var(--surface);border:1px solid 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