/* DataTable — selected/focused cells: solid bg + white text for dark theme */
.dash-spreadsheet-container td.dash-cell.focused,
.dash-spreadsheet-container td.dash-cell.cell--selected {
    background-color: #3a4a8a !important;
    color: #fff !important;
}

/* DataTable filter inputs — white text and placeholder */
.dash-filter input {
    color: #fff !important;
}
.dash-filter input::placeholder {
    color: rgba(255, 255, 255, 0.5) !important;
}

#split-handle:hover {
    background: linear-gradient(to right, #555, #88f, #555) !important;
}
#split-handle:active {
    background: linear-gradient(to right, #555, #aaf, #555) !important;
}