body{font-family:Arial,Helvetica,sans-serif;margin:0;padding:0;background:#f6f7fb;color:#222}
header{background:#0b63a3;color:#fff;padding:12px 20px;display:flex;justify-content:space-between;align-items:center}
main{padding:20px}
.login-container{width:320px;margin:80px auto;background:#fff;padding:20px;border-radius:6px;box-shadow:0 3px 12px rgba(0,0,0,0.08)}
.login-container h2{margin-top:0}
.login-container input{width:100%;padding:10px;margin:8px 0;border:1px solid #ddd;border-radius:4px}
.login-container button{width:100%;padding:10px;background:#0b63a3;color:#fff;border:none;border-radius:4px;cursor:pointer}
.error{color:#b00020}
.summary{background:#fff;padding:12px;border-radius:6px;box-shadow:0 2px 8px rgba(0,0,0,0.06);margin-bottom:16px}
.chart{background:#fff;padding:12px;border-radius:6px}