diff --git a/internal/web/public/js/weight.js b/internal/web/public/js/weight.js
index 2099872..6f85cc4 100644
--- a/internal/web/public/js/weight.js
+++ b/internal/web/public/js/weight.js
@@ -49,6 +49,14 @@ function setWeights(weights, wcolor, off, step) {
     if (document.getElementById('weight-chart')) {
         weightChart('weight-chart', dates, ws, wcolor, true);
     }
+
+    // Grey out a paging button only when there's no further page that way:
+    // "Older" needs entries before the current window (start > 0); "Newer"
+    // needs a more-recent page (offset > 0).
+    var olderBtn = document.getElementById('weight-older-btn');
+    var newerBtn = document.getElementById('weight-newer-btn');
+    if (olderBtn) olderBtn.disabled = start <= 0;
+    if (newerBtn) newerBtn.disabled = offset <= 0;
 }
 
 // Render the log table for an already period-filtered weight set, resetting
diff --git a/internal/web/templates/stats.html b/internal/web/templates/stats.html
index 0929257..9a7cdf9 100644
--- a/internal/web/templates/stats.html
+++ b/internal/web/templates/stats.html
@@ -196,12 +196,12 @@
                     <tbody id="weightList"></tbody>
                   </table>
                   <div class="d-flex gap-2 px-3 pb-2 pt-2">
-                    <button onclick='setWeights(filterWeightByPeriod(window._allWeight, currentPeriod), window._chartColor, 1, window._pageStep);'
-                      class="btn btn-sm btn-outline-secondary rounded-3 flex-fill">
+                    <button id="weight-older-btn" onclick='setWeights(filterWeightByPeriod(window._allWeight, currentPeriod), window._chartColor, 1, window._pageStep);'
+                      class="btn btn-sm btn-outline-primary rounded-3 flex-fill">
                       <i class="bi bi-arrow-left"></i> Older
                     </button>
-                    <button onclick='setWeights(filterWeightByPeriod(window._allWeight, currentPeriod), window._chartColor, -1, window._pageStep);'
-                      class="btn btn-sm btn-outline-secondary rounded-3 flex-fill">
+                    <button id="weight-newer-btn" onclick='setWeights(filterWeightByPeriod(window._allWeight, currentPeriod), window._chartColor, -1, window._pageStep);'
+                      class="btn btn-sm btn-outline-primary rounded-3 flex-fill">
                       Newer <i class="bi bi-arrow-right"></i>
                     </button>
                   </div>