/* ─── GLOBAL DOCUMENT PREVIEW MOBILE FIX ─── */
@media (max-width: 768px) {
  /* Targeted Modals */
  #modal-view-challan .modal-xl,
  #modal-view-bill .modal-xl,
  #modal-quotation-preview .modal-xl,
  #modal-view-reconciliation .modal-xl {
    width: 98vw !important;
    max-width: 98vw !important;
    margin: 1vh auto;
  }

  #modal-view-challan .modal-body,
  #modal-view-bill .modal-body,
  #modal-quotation-preview .modal-body,
  #modal-view-reconciliation .modal-body {
    padding: 0 !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    background: #f1f5f9;
  }

  /* Shared Print Areas */
  #print-dc-area,
  #bill-print-area,
  #print-quotation-area,
  #reconciliation-print-area {
    position: relative !important;
    display: block !important;
    width: 100% !important;
    min-height: 100vh;
    padding: 20px 0;
  }

  .print-content-wrapper {
    width: 210mm !important;
    min-width: 210mm !important;
    background: white;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    transform: scale(0.42) !important;
    transform-origin: top center !important;
    margin: 0 auto !important;
    position: relative;
    z-index: 1;
    margin-bottom: -150% !important; 
  }

  .print-letterhead-bg {
    width: 210mm !important;
    height: 297mm !important;
    position: absolute !important;
    top: 20px !important; /* Match padding-top of parent */
    left: 50% !important;
    margin-left: -105mm !important; /* Half of 210mm */
    transform: scale(0.42) !important;
    transform-origin: top center !important;
    z-index: 0 !important;
  }

  /* Support for modern browsers that handle zoom better */
  @supports (zoom: 1) {
    .print-content-wrapper {
      transform: none !important;
      zoom: 0.45;
      margin-bottom: 0 !important;
    }
    
    .print-letterhead-bg {
      transform: none !important;
      zoom: 0.45;
      left: 50% !important;
      margin-left: -105mm !important;
    }
  }
}

/* Modal Header Centering */
@media (max-width: 768px) {
  #modal-view-challan .modal-header,
  #modal-view-bill .modal-header,
  #modal-quotation-preview .modal-header,
  #modal-view-reconciliation .modal-header {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 12px !important;
    padding: 16px 10px !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;
    background: var(--surface-1) !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3) !important;
    border-bottom: 1px solid var(--border-2) !important;
  }

  .modal-body {
    position: relative !important;
    z-index: 1 !important;
  }

  #modal-view-challan .modal-header > div:last-child,
  #modal-view-bill .modal-header > div:last-child,
  #modal-quotation-preview .modal-header > div:last-child,
  #modal-view-reconciliation .modal-header > div:last-child {
    display: flex !important;
    justify-content: center !important;
    width: 100% !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
  }

  .modal-header .btn-sm {
    padding: 8px 12px !important;
    font-size: 0.78rem !important;
  }
}