body{margin:0;font-family:Inter,system-ui;background:#f5f6f8}
.erp{display:flex;min-height:100vh}
.sidebar{width:240px;background:#fff;border-right:1px solid #eee;padding:20px}
.brand{font-weight:700;margin-bottom:20px}
.sidebar a{display:block;padding:10px;border-radius:8px;color:#333;text-decoration:none}
.sidebar a:hover{background:#f0f2f5}
.content{flex:1;padding:24px}
.topbar{display:flex;justify-content:space-between;align-items:center}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:16px 0}
.kpi{background:#fff;border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.05)}
.panel{background:#fff;border-radius:16px;padding:20px}
.mcx-auth{display:flex;align-items:center;justify-content:center;min-height:100vh}
.auth-card{background:#fff;padding:40px;border-radius:18px;width:360px;box-shadow:0 30px 60px rgba(0,0,0,.12)}
input,select,button{width:100%;padding:12px;margin:6px 0;border-radius:10px;border:1px solid #ddd}
button{background:#2563eb;color:#fff;border:none}