diff --git a/core/templates/base.html b/core/templates/base.html
index d8d8ead..d72fcb3 100644
--- a/core/templates/base.html
+++ b/core/templates/base.html
@@ -38,7 +38,7 @@
     <div id="wrapper">
         <!-- Sidebar -->
         {% if user.is_authenticated %}
-        <nav id="sidebar">
+        <nav id="sidebar" class="d-print-none">
             <div class="sidebar-header d-flex align-items-center">
                 <a class="navbar-brand fw-bold text-primary fs-4" href="{% url 'index' %}">
                     {% if site_settings.logo %}
@@ -406,7 +406,7 @@
         <!-- Page Content -->
         <div id="content" {% if not user.is_authenticated %}style="margin-left: 0; width: 100%;"{% endif %}>
             {% if user.is_authenticated %}
-            <div class="p-3 d-flex justify-content-between align-items-center">
+            <div class="p-3 d-flex justify-content-between align-items-center d-print-none">
                 <button type="button" id="sidebarCollapse" class="btn btn-light shadow-sm">
                     <i class="bi bi-list fs-5"></i>
                 </button>
diff --git a/core/templates/core/invoice_detail.html b/core/templates/core/invoice_detail.html
index 596146c..1c49764 100644
--- a/core/templates/core/invoice_detail.html
+++ b/core/templates/core/invoice_detail.html
@@ -296,13 +296,13 @@ async function sendWhatsAppDirect() {
 @media print {
     @page { 
         size: A4 portrait; 
-        margin: 10mm; 
+        margin: 5mm; 
     }
     body { 
         background-color: white !important; 
         margin: 0 !important;
         padding: 0 !important;
-        font-size: 12px;
+        font-size: 11px;
     }
     .container { 
         width: 100% !important; 
@@ -327,27 +327,27 @@ async function sendWhatsAppDirect() {
     }
     
     /* Spacing Reductions */
-    .print-mb-2 { margin-bottom: 0.5rem !important; }
-    .print-mb-1 { margin-bottom: 0.25rem !important; }
-    .print-mt-2 { margin-top: 1rem !important; }
-    .print-pt-2 { padding-top: 0.5rem !important; }
+    .print-mb-2 { margin-bottom: 0.25rem !important; }
+    .print-mb-1 { margin-bottom: 0.15rem !important; }
+    .print-mt-2 { margin-top: 0.5rem !important; }
+    .print-pt-2 { padding-top: 0.25rem !important; }
     .print-pb-0 { padding-bottom: 0 !important; }
     .print-px-0 { padding-left: 0 !important; padding-right: 0 !important; }
     .print-mx-0 { margin-left: 0 !important; margin-right: 0 !important; }
     .print-p-0 { padding: 0 !important; }
     
     /* Font Size Reductions */
-    .print-h1 { font-size: 18px !important; margin-bottom: 0.5rem !important; }
-    .print-h3 { font-size: 16px !important; }
-    .print-h5 { font-size: 14px !important; }
-    .print-small { font-size: 10px !important; }
+    .print-h1 { font-size: 16px !important; margin-bottom: 0.25rem !important; }
+    .print-h3 { font-size: 14px !important; }
+    .print-h5 { font-size: 12px !important; }
+    .print-small { font-size: 9px !important; }
     
     /* Table Compactness */
     .table th, .table td {
-        padding: 4px 8px !important;
-        font-size: 11px !important;
+        padding: 2px 4px !important;
+        font-size: 10px !important;
     }
-    .print-py-1 { padding-top: 4px !important; padding-bottom: 4px !important; }
+    .print-py-1 { padding-top: 2px !important; padding-bottom: 2px !important; }
     
     /* Hide Backgrounds */
     .print-bg-none { background-color: transparent !important; }
@@ -355,11 +355,16 @@ async function sendWhatsAppDirect() {
         border: 1px solid #000; 
         color: #000 !important; 
         background: transparent !important; 
-        padding: 2px 8px !important;
+        padding: 1px 6px !important;
+        font-size: 10px !important;
     }
     
     /* Logo sizing */
-    .print-logo { max-height: 50px !important; }
+    .print-logo { max-height: 40px !important; }
+    
+    /* Prevent orphans/widows */
+    tr, p, div { page-break-inside: avoid; }
+    .row { page-break-inside: auto; }
 }
 </style>
 {% endblock %}
\ No newline at end of file