body { background: #f8f9fa; }
.card { border: none; box-shadow: 0 1px 4px rgba(0,0,0,.08); }
.license-key {
    font-family: monospace;
    font-size: 1.1rem;
    letter-spacing: .05em;
    background: #e9ecef;
    padding: .5rem 1rem;
    border-radius: .375rem;
    word-break: break-all;
}
.badge-active   { background: #198754; }
.badge-revoked  { background: #dc3545; }
.badge-past_due { background: #ffc107; color:#000; }
.badge-cancelled{ background: #6c757d; }