body{color:#fff;background:#0f172a;margin:0;font-family:Arial,sans-serif}.app-shell{max-width:1100px;margin:auto;padding:2rem}.card{background:#1e293b;border-radius:12px;margin-bottom:1rem;padding:1rem}.badge{background:#059669;border-radius:999px;padding:.25rem .75rem;font-size:.8rem}button{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:8px;padding:.8rem 1rem}.danger{background:#dc2626}