Fix Extra Blank Page when printing, adminlte bug created overide, Do not include cards border on print like adminlte3 and shrink the font on print

css/itflow_custom.css

@@ -1124,3 +1124,66 @@ a:focus {
     --lte-primary-color: #000000;
     --lte-primary-color-rgb: 0, 0, 0;
 }
+
+/* --- Print ----------------------------------------------------------------
+   AdminLTE 3 bundled Bootstrap 4, whose print reboot shrank every printout by
+   declaring `@page { size: a3 }` and letting the browser scale that oversized
+   page down onto the real sheet - roughly 71% on A4, 73% on Letter. Bootstrap
+   5 dropped that block and AdminLTE 4 ships no replacement, so pages now come
+   out at 1:1 and read about 1.4x larger than they used to.
+
+   Deliberately NOT restoring the @page rule: modern browsers treat a CSS page
+   size as a paper REQUEST rather than a scale hint, so it can hand you literal
+   A3 output instead of shrunken A4. Scaling the root font instead keeps the
+   page at whatever paper is actually selected and lets the layout reflow to
+   its real width, which suits the wide report tables better than shrinking the
+   whole page ever did.
+
+   Nothing else in the app sets a root font-size, and Bootstrap, AdminLTE and
+   the .text-sm wrapper all size in rem, so this one line is the only knob:
+   raise it for larger print, lower it for smaller. At 71% of a 16px default
+   the app's .text-sm body text lands at ~9.9px (~7.4pt), which is what v3's
+   page scaling was effectively producing. */
+@media print {
+    html {
+        font-size: 71%;
+    }
+
+    /* AdminLTE 3 zeroed Bootstrap's card border (`border: 0 solid`) and drew
+       the card's edge with a box-shadow instead - and Bootstrap 4's print
+       reboot then killed box-shadows, so a printed card had no outline at all,
+       just the header's own bottom rule. AdminLTE 4 gives .card a real 1px
+       border, keeps the shadow, and ships no print reboot, so both now print.
+
+       border-WIDTH rather than the border shorthand, so .card-outline's 3px
+       accent keeps its colour and can be handed its width straight back - it
+       is a border-top longhand and survived v3's border:0 the same way. */
+    .card {
+        border-width: 0 !important;
+    }
+    .card.card-outline {
+        border-top-width: 3px !important;
+    }
+    .card-footer {
+        border-top-width: 0 !important;
+    }
+
+    /* Bootstrap 4 dropped every shadow when printing; they render as grey
+       smudges on paper. Same rule it used, which also covers the dashboard
+       small-boxes rather than cards alone. */
+    *,
+    *::before,
+    *::after {
+        box-shadow: none !important;
+    }
+
+    /* .app-wrapper carries min-height:100vh so the layout fills the window on
+       screen. On paper a vh resolves against the whole SHEET while the content
+       box is the sheet MINUS the page margins, so the wrapper is always taller
+       than the area it can occupy and spills a sliver onto a second, blank
+       page - however short the invoice is. AdminLTE 4's own print block
+       rewrites this element's grid but never clears the height. */
+    .app-wrapper {
+        min-height: 0 !important;
+    }
+}