*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#0f1419;color:#e7ecf3}a{color:#7eb6ff}.app-shell{max-width:960px;margin:0 auto;padding:24px 16px 48px}.card{background:#1a222d;border:1px solid #2a3544;border-radius:12px;padding:16px;margin-bottom:16px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px;border-bottom:1px solid #2a3544}button{background:#3d7eff;color:#fff;border:none;border-radius:8px;padding:10px 16px;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}input{width:100%;padding:10px;border-radius:8px;border:1px solid #2a3544;background:#0f1419;color:#e7ecf3}