.hardware-tracker-table {
    width: 100%;
    border-collapse: collapse;
}
.hardware-tracker-table th,
.hardware-tracker-table td {
    border: 1px solid #ccc;
    padding: 8px;
    vertical-align: top;
}
.hardware-tracker-table td .alert {
    color: red;
    font-weight: bold;
}
button {
    margin-top: 4px;
    padding: 4px 8px;
    cursor: pointer;
}
.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
}
.modal-content {
    background: #fff;
    margin: 10% auto;
    padding: 20px;
    width: 400px;
    position: relative;
}
.modal .close {
    position: absolute;
    top: 10px; right: 10px;
    font-size: 20px;
    cursor: pointer;
}

.time-group div { margin: 2px 0; }
.geo-info div { margin: 3px 0; }
.timezone-warning { background: #fff3e0; padding: 5px; border-radius: 3px; }
.no-data { text-align: center; color: #666; padding: 20px !important; }