/* Static styles for the Excel-like chrome injected by WorkbookChrome (#166).
   Lives outside the per-preview <style> block so multi-embed pages don't
   ship N copies of the same rules. EPPlus's per-workbook dynamic CSS stays
   inline because it carries cell-specific classes that vary per workbook. */
.epplus-colhdr th,
.epplus-rowhdr {
    background: #f3f4f6;
    color: #374151;
    font-weight: 600;
    text-align: center;
    border: 1px solid #d1d5db;
    padding: 2px 6px;
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 11px;
}

.epplus-corner {
    background: #e5e7eb;
    border: 1px solid #d1d5db;
}