:root{--bg:#f5f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--primary:#1d4ed8;--accent:#0f766e;--danger:#b91c1c;--border:#dbe3ef}
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@media print{.sidebar,.topbar,.no-print,.flash{display:none!important}body{background:#fff}.content{padding:0}.card,.receipt{box-shadow:none;border:none;padding:0}}