diff --git a/admin/index.php b/admin/index.php
index 890afba..0a2aef0 100644
--- a/admin/index.php
+++ b/admin/index.php
@@ -2168,7 +2168,30 @@ function openUpdateCard(id, triggerBtn) {
         }
         Square.payments('<?= SQUARE_APP_ID ?>', '<?= SQUARE_LOCATION_ID ?>').then(payments => {
             _sqPayments = payments;
-            return _sqPayments.card();
+            return _sqPayments.card({
+                style: {
+                    '.input-container': {
+                        borderColor: '#d1d5db',
+                        borderRadius: '6px',
+                        backgroundColor: '#ffffff',
+                    },
+                    '.input-container.is-focus': {
+                        borderColor: '#f97316',
+                    },
+                    '.input-container.is-error': {
+                        borderColor: '#dc2626',
+                    },
+                    'input': {
+                        backgroundColor: '#ffffff',
+                        color: '#111111',
+                        fontSize: '14px',
+                        fontFamily: 'Inter, Arial, sans-serif',
+                    },
+                    'input::placeholder': {
+                        color: '#9ca3af',
+                    },
+                }
+            });
         }).then(card => {
             window._ucCard = card;
             return card.attach('#ucCardContainer');
@@ -2222,7 +2245,7 @@ async function submitUpdateCard() {
       <button onclick="closeUpdateCard()" style="background:none;border:none;font-size:1.3rem;cursor:pointer;color:#6b7280;line-height:1">✕</button>
     </div>
     <p style="font-size:.83rem;color:#6b7280;margin-bottom:1rem">Enter the customer's new card. The old card will be removed and replaced.</p>
-    <div id="ucCardContainer" style="border:1px solid #e5e7eb;border-radius:8px;padding:.75rem;min-height:54px;margin-bottom:1rem"></div>
+    <div id="ucCardContainer" style="border:1px solid #e5e7eb;border-radius:8px;padding:.75rem;min-height:54px;margin-bottom:1rem;background:#fff"></div>
     <div id="ucMsg" style="display:none;font-size:.82rem;margin-bottom:.75rem;padding:.5rem .75rem;border-radius:6px;background:#fef2f2"></div>
     <div style="display:flex;gap:.75rem">
       <button id="ucSubmitBtn" onclick="submitUpdateCard()" style="flex:1;background:#f97316;color:#fff;border:none;border-radius:8px;padding:.75rem;font-size:.9rem;font-weight:700;cursor:pointer">Save New Card</button>