body {
    background-color: #f5f6f8;
    font-family: 'Vazirmatn', Tahoma, sans-serif;
}
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.node-card .status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-inline-end: 6px;
}
.status-online { background-color: #28a745; }
.status-offline { background-color: #dc3545; }
.status-pending, .status-installing { background-color: #ffc107; }
.status-error { background-color: #dc3545; }

#installLog {
    background: #0d1117;
    color: #c9d1d9;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    padding: 16px;
    border-radius: 8px;
    height: 420px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}
.qr-box img {
    max-width: 220px;
    border: 8px solid #fff;
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(0,0,0,.15);
}