.status-banner {
    color: #fff;
    background: #555;
}

.status-banner {
    padding: 8px 12px;
    font: 500 14px/1.3 system-ui, sans-serif;
    text-align: center;
    margin-bottom: 1em;
}

.status-banner.status-proven { background: #2e7d32; }
.status-banner.status-concept { background: #0277bd; }
.status-banner.status-legacy { background: #616161; }