diff --git a/app.js b/app.js
index 0af5e32..3b71368 100644
--- a/app.js
+++ b/app.js
@@ -333,9 +333,9 @@ function renderMonthRow(month) {
     <tr>
       <td>${month.year} - ${monthNames[month.month - 1]}${month.expiredFeriefridage > 0 ? `<br><span class="warn-text">Expired FF: ${days(month.expiredFeriefridage)}</span>` : ''}</td>
       <td class="entries">${entries}</td>
-      <td class="num ${month.vacationBalance < -0.001 ? 'bad-text' : ''}"><input class="balance-override-input" type="number" step="0.01" value="${month.hasVacationOverride ? Number(month.vacationOverride) : Number(month.vacationBalance.toFixed(2))}" data-kind="vacation" data-year="${month.year}" data-month="${month.month}" aria-label="Vacation days for ${monthNames[month.month - 1]} ${month.year}"></td>
-      <td class="num ${month.feriefridageBalance < -0.001 ? 'bad-text' : ''}"><input class="balance-override-input" type="number" step="0.01" value="${month.hasFeriefridageOverride ? Number(month.feriefridageOverride) : Number(month.feriefridageBalance.toFixed(2))}" data-kind="feriefridage" data-year="${month.year}" data-month="${month.month}" aria-label="Feriefridage for ${monthNames[month.month - 1]} ${month.year}"></td>
-      <td class="num ${month.flexBalance < -0.001 ? 'bad-text' : ''}"><input class="balance-override-input" type="number" step="0.25" value="${month.hasFlexOverride ? Number(month.flexOverride) : Number(month.flexBalance.toFixed(2))}" data-kind="flex" data-year="${month.year}" data-month="${month.month}" aria-label="FLEX hours for ${monthNames[month.month - 1]} ${month.year}"></td>
+      <td class="num ${month.vacationBalance < -0.001 ? 'bad-text' : ''}"><input class="balance-override-input ${month.hasVacationOverride ? 'is-overridden' : ''}" type="number" step="0.01" value="${month.hasVacationOverride ? Number(month.vacationOverride) : Number(month.vacationBalance.toFixed(2))}" data-kind="vacation" data-year="${month.year}" data-month="${month.month}" aria-label="Vacation days for ${monthNames[month.month - 1]} ${month.year}"></td>
+      <td class="num ${month.feriefridageBalance < -0.001 ? 'bad-text' : ''}"><input class="balance-override-input ${month.hasFeriefridageOverride ? 'is-overridden' : ''}" type="number" step="0.01" value="${month.hasFeriefridageOverride ? Number(month.feriefridageOverride) : Number(month.feriefridageBalance.toFixed(2))}" data-kind="feriefridage" data-year="${month.year}" data-month="${month.month}" aria-label="Feriefridage for ${monthNames[month.month - 1]} ${month.year}"></td>
+      <td class="num ${month.flexBalance < -0.001 ? 'bad-text' : ''}"><input class="balance-override-input ${month.hasFlexOverride ? 'is-overridden' : ''}" type="number" step="0.25" value="${month.hasFlexOverride ? Number(month.flexOverride) : Number(month.flexBalance.toFixed(2))}" data-kind="flex" data-year="${month.year}" data-month="${month.month}" aria-label="FLEX hours for ${monthNames[month.month - 1]} ${month.year}"></td>
       <td class="num important-col ${balanceClass}">${days(month.availableDays)}</td>
     </tr>
   `;
diff --git a/style.css b/style.css
index f7df4de..366b56a 100644
--- a/style.css
+++ b/style.css
@@ -298,6 +298,11 @@ tbody tr:hover { background: rgba(255,255,255,.04); }
   text-align: right;
   font-size: .85rem;
 }
+.balance-override-input.is-overridden {
+  font-weight: 900;
+  color: var(--brand-dark);
+  border-color: var(--brand);
+}
 
 .warnings { display: grid; gap: .55rem; }
 .warning {